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(12) STANDARD PATENT APPLICATION (11) Application No. AU 2014202047 A1 (19) AUSTRALIAN PATENT OFFICE

(54) Title Methods for treating dependence

(51) International Patent Classification(s) A61K 31/415 (2006.01) A61P 25/30 (2006.01) A01N 43/50 (2006.01)

(21) Application No: 2014202047 (22) Date of Filing: 2014.04.11

(43) Publication Date: 2014.05.01 (43) Publication Journal Date: 2014.05.01

(62) Divisional of: 2008283903

(71) Applicant(s) Biotie Therapies, Inc.

(72) Inventor(s) Pickford, Lesley;Woiwode, Tom;Moran, Mark

(74) Agent / Attorney Spruson & Ferguson, L 35 St Martins Tower 31 Market St, Sydney, NSW, 2000 2014202047 11 Apr 2014 phase dependence Compound Provided symptom

of

cocaine

are of

A.

on

abuse methods

Also

at

dependence

least

of,

provided

dependence of

one

treating

substance

in are

patients.

patients methods

on,

in or

patients

ABSTRACT

withdrawal

suffering of

treating

and

from

certain from at

least

or

at

susceptible

methods

least one

phase

one

of

substance

to of

treating

at substance

least

at with

one

least

one

2014202047 11 Apr 2014 U.S. nationwide, which troublesome, their phase herein Dependence Dependence Drug illicit In Background of Field Treating Cross-Reference current approximately legal substance despite and substance at [001] [004] [003] [002]

treating 2004, least

use

lifetimes

of Provisional drug

Abuse

concern. of is by

Provided This The Substance

significant

crack

Invention

with

one greater Dependence substance

approximately reference

with (alcohol at abuse

and problem

of application Using

least Using

Warning symptom in loss

users

and

13.9% the Compound

cocaine than

2005,

to are alone According

abuse

one Patent

of

substance Invention

METHODS

3.3% or Related dependence in

Nepicastat increased

certain

in of control

Using of their

illicit phase

is Network there

of 2004 was and

cocaine

22.5 claims Americans have $181 Application

A. abuse entirety.

Applications

Nepicastat methods

drug) of dependence the to were use in

when

million ” from ” tried billion

Also

cocaine FOR

filed on the limiting the involved

estimated filed abuse related

of,

abuse.

2.4 at

the

benefit crack aged

467,000

provided

2005

August TREATING

of

least dependence

(2002). Americans

August

Serial million number dependence and

treating filed intake problems

are

in 12

cocaine The

National one

940,953

of

the dependence

characterized and 6,

in

October Nos. are

and 17, persons

was substance latest of 2007, majority 2004

patients

older

aged

certain DEPENDENCE

the

on, and at 2007,

priority

in 2.0 60/935,323, drug-related

Survey

least estimate

60/956,555, to patients. 4,

substance.

have or at million. 12 who

2007, of 682,000 is

suffering methods the in and

withdrawal by

or once these.

under a

tried patients

were

on expense major older substance

60/960,591, for which

in

Similarly,

Drug “

emergency cocaine

in Methods These 35

of the “ current

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needed

medical,

2005. and

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costs from

Use

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or

lifetimes. other behaviors

certain all

at

cocaine

the

“ susceptible

treatment

to

Methods for In least incorporated at

and for room § at

social,

number behaviors. society

2004, least

119(e)

least

methods Treating Treating seeking,

once

Health,

users, occur More visits

one one and the

for for

of of to to in

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tiagabine

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<

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to be

with 16% time effect mediates Disulfiram of

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measured

psychotherapy

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high activity,

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patients

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2014202047 11 Apr 2014 A reached therapeutically perfluorobenzene. triflurobenzene, o-xylene, In In inhalant, In In hydroxybutyrate, on embodiments, embodiments, embodiments, some from embodiments, some drug substance development acquisition Compound The substance Compound effective abstinence levodopa, after [066]

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2014202047 11 Apr 2014 partial psychological the the receptor blocker, norepinephrine-dopamine norepinephrine management In other other one embodiments, embodiments, embodiments, continued activities and from and agonist, agonist, antagonist, enzyme GABA gamma-aminobutyric antidepressant/antipsychotic, adrenergic (MAOI), antagonist, (5HT1A) further agent

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2014202047 11 Apr 2014 reduces reached recurrent use; unsuccessful related recurrent the A therapeutically maintenance, In In hydroxybutyrate, in Compound effective abstinence levodopa, symptom exacerbated social, activities dependence some social embodiments, embodiments, a after [067]

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2014202047 11 Apr 2014 the receptor blocker valproate. receptor inhibitor, inhibitor, In atomoxetine. embodiments, citalopram, embodiments, agonist, agonist, embodiments, agent selected embodiments, least antagonist and lamotrigine, embodiments, desipramine, selected embodiments, central embodiments, disulfiram. some agonist agent sodium agent

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2014202047 11 Apr 2014 triflurobenzene, mushroom, pemoline, the psychostimulant psychostimulant patient. therapeutically perfluorobenzene. o-xylene, In In hypnotic, In In hydroxybutyrate, embodiments, embodiments, embodiments, some from some selected dextroamphetamine, and some dependence Compound cocaine Compound effective abstinence levodopa, agent

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from embodiments, embodiments,

embodiments, amount

embodiments,

m-xylene, mazindol,

selected an from some A A lysergic carisprodol, on,

administered the

is the Lortab, the anxiolytic, effective

or

bromocriptine,

agent, agent cocaine unchanged of embodiments,

1,2,4-trifluorobenzene, opium, at at at

In withdrawal

Compound

the

least the and acid from (-) least

least is p-xylene,

the some

In

is Tramadol,

an

the the

the

reached at

cathione,

at

the amount methamphetamine. a use

other psilopcybin, some

diethylamide

one

opioid, hallucinogen

least other modafenil, beta-phenylisopropylamine

least to at Compound amount ecstasy, embodiments, and

after

at by

the least

other

agent from A the

one pergolide,

ethylbenzene,

embodiments, least agent other in

the

of

an patient and in heroin, a remission

Compound other

hallucinogen, the

of secondary

least the

agent derivative

patient. at

is

phenmetrazine, illicit

fenfluramine. other

agent is hallucinogenic

Compound

A 27 the least patient.

(LSD), patient acamprosate,

is

until the agent one methadone, is pentafluorotoluene,

the

is

amantadine, partial

selected

administered agent substance. is from partial one

an In

methods

other In

a

substance A fluorobenzene,

the is

is the phencyclidine desired

inhalant some

some

treats secondary In determined an

opioid the is

cocaine A

is serotonin

agent nicotinic drug

inhalant, some

In

from

is

partial the mushroom, hydrocodone, embodiments,

derivative. methylphenidate,

further

selected

embodiments, at mazindole, gamma-butyrolactone, some therapeutic tapered

is agonist selected

least to

of selected opioid

In dependence embodiments, psilocybin, selected

substance

the

5HT1

5HT2 by

embodiments, abuse agonist a include

(PCP), some o-difluorobenzene, one

pentafluorobenzene,

sedative,

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from methadone.

In tobacco,

from

from

symptom and

response

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some

champix. embodiments, the

co-administering

and

in benzene,

is methylphenidate. a

selected after

psychostimulant

benzodiazepine,

a oxycodone. a remission the diethylpropion,

the therapeutically

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ketamine. amphetamine, embodiments, tranquilizer, the drug

and gepirone.

the

is

of

patient. a

amount

amount ritanserin.

observed.

period

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opioid nicotine. In of In gamma toluene, In from

in

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from

and

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of,

In In In of of of In

is a a a ­

2014202047 11 Apr 2014 medication. trifluorobenzene, powders, parenteral the therapeutically mg/day. per Percocet, inflammatory xylene, other of or in its cannabinoid, anticholinergic some some combination limitation, and about about and dependence, acceptable corresponding esters, [070] [069] [068]

dependence certain example pharmokinetic

day. following other the

embodiments,

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disclosure

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other

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properties

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3500

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art

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body

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prodrug

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in

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carisprodol,

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solutions, In weight

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subject,

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benzene,

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from

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10

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or prevention

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amount aerosols,

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human

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body and addiction can,

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drive

this

and

but the the the

or of in in in in is a a

2014202047 11 Apr 2014 NMR receptors, uncorrected. precedence ketone. using primary thiocyanic Example hydroxylase over impact Point in KCN) hydrochloride, hydrogenated associated and system standard. spectrometer sequential azide 95% (LAH, chloride (available [0136] [0138] [0137]

THF.

natriuresis.

ee), β

Apparatus (+)- afforded

-blockers

spectra Nepicastat (-)-1 Melting The or to thereby

amide.

with

6

The The that

may chemical 1 with IR from acid.

5-(-)-aminonitrilc.

5, of /?,25- diformylation preparation

2/?-.V-mcthy

and Mass which

ethylene

spectra the

enantiomer was

absolute

and have

were

converted over-activation points

a obviating

Reduction the is

Competing .V-mcthylcphcdrinc,

or previously chemical mixture

is spectra

that

converted

ionization)

the AlCft-catalyzed salutary

a may were recorded

a were in

Mettler

of it potent, configuration

product

I CH2CI2

ephedrine

by

the

(91.6% be were nepicastat enhances

of recorded of (9:1) shifts

determined

hydrolysis

described effects

nitrile a

to need

of of aminonitrile or

FB on

obtained Strecker Formation

selective

the of

at are the Finnigan value

treated ee)

a

81HT -65 for

on

to

on as

azide dopamine R-(+)-mesylate, 2-ethylaminopyridine) Friedel-Crafts given sympathetic was

Bruker

was

5-(-)-2

of amine 47 renal of

on a °C) dose-titration. a

in

with

reaction chiral Nicolet

the based

the

a and cell

with

and available in MAT

under of

Uni-Melt the

function followed

-tetralol.

(93-96% nitrile ppm

ACF300, either

chiral

with

orally levels the

dihydronaphthalene auxiliary upon

treatment

anhydrous

nervous TSQ70 SPC the (formaldehyde

(δ)

reaction

heterocycle

afforded a by a

followed

center conditions such

Thomas Finnigan the which, active from ee) FT-IR Mettler

Another by the

AM300,

(for in system.

chiral

was as

to

of subsequent tetramethylsilane same

the

of

was

HC1

comparable

renal inhibitor

via spectrometer. LSIMS)

give Hoover

accomplished

by cardiovascular MAT FP90

3,5 advantage reduction Terashima described

was

bisulfite agonism based above AMX300

reaction -difluorophenylacetyl to

R-(+)-tetralol vasodilation, 7.

8230 processor

Capillary accomplished

spectrometer. give of

treatment

The described upon amounts

of by

dopamine complex (for of of with

reduction

UV

5-(-)-aminc

using

or tetralone

Terashima as azide

nepicastat dopamine

disorders

literature electron

Melting and diuresis internal EM390 sodium 4a spectra

of

route LAH

with

(92 was

and

the are by 'H

of β- 3 ­ ­

2014202047 11 Apr 2014 NMR with measurements rotations were mixture reflux min) mixture rate the which mL) min temperature of H, 2H); CH2CI2 evaporated difluorophenylacetic dropwise a dropwise (-)-l/?,2S\'V-mcthylcphcdrinc °C followed and complete, at g, [0139] [0140]

solution

such

2-ethylaminopyridine

4.42. 1.16 (1.0

product

sufficient at

was and 2% MS at recorded

(CDCh) for was

-65

a to (200

was such was

mol)

acetonitrile-98% dried rate

m/z by

at (45 then

were a ethylene 0.7

of °C. (7?)-(+)-2-Hydroxy-5,7-difluoro-l,2,3,4-tetrahydronaphthalene. 5,7-Difluoro-2-tetralone.

distilled

under further as

a of

heated

cooled

rapid

mL)

in min) a

5,7-difluoro-2-tetralone 182

rate

mm

to in a over

were on -65 δ cooled rate The order

white measured

maintain 2.55

CH

(M and

reduced

a maintaining

Hg). to

addition. °C

1

MgSCL. gas at

to reaction in

as Varian performed

h, + 2 acid

to

1.0 C1 ). reflux

(t, added in solid,

an vacuo

to to

during

was

2 maintain The Anal. (111 J

a M internal

20 (100 maintain

(1.0 -10

a dry =7.5

pressure. in

Cary

gentle lithium bubbled for (73.6 mixture mM dropwise Evaporation

distillate on

(81.3 The

g,

which a ice/acetone the °C Calcd g,

L).

on

Hz, 1

a

0.98

Perkin-Elmer

KH2PO4 3 an 0.58

temperature h

g, organic

Kugelrohr internal and a

reflux. a

then UV-Visible g,

aluminum 2H),

internal

The

was Regis time 0.40 through SOCI2

gentle for

mole)

(23.0 The was

0.454 to mol) 48 treated

allowed

Ci

a

under allowed 3.10

stirred mol;

a

bath, (pH

resulting redistilled mechanically layer temperature

After

0

Chiral

light g, and reflux. H in (100 temperature

mol)

collecting

the 8

of

(t, 4.7) hydride F 126

anhydrous 70%):

with

reduced

Model and spectrometer,

2

after

was

yellow-green to O: -65 the

J=

suspension

reaction mL) to

in AGP

mmol)

at cool

the C, oily

warm

The

addition °C H anhydrous at 7.5 separated, stirring mp

1

2 was

(416

65.93;

below mL/min

O

material acid 100-105 pressure 141

to using

column stirred <-60

reaction acid Hz,

46

Et

mixture

in room (500 to

added

2 mL,

chloride °C;

polarimeter. O

was

for 2H), 0 Et was

H, °C. Leeman -60 chloride a suspension

°C suspension

(100

2

at dry Et washed

mL) temperature. (4.6 O °C boiling IR gave

0.416

4.42. 15

°C. mixture

20 in complete, 2 cooled After over 3.58 at

O

(125

(KBr) (0.3 ice-acetone h,

mL)

one x

solution °C. a

initially (1.1

a

After

the

Labs

mol) was Found:

rapid

100 (s, 2 dark the between mm with mL)

portion

h

was appeared.

to

volatiles was Chiral L) 1705 A 2H), of

with

addition mm)

dissolved

Inc. the in

the

oily

Hg)

an

rate solution AICI3

was was brine was A

added dropwise,

C, Et heated

bath

6.70

cm addition reaction solution

stirring,

internal Optical residue

2 90-110 to

to eluting

HPLC for 65.54; O added added added

were 1 (100 (154

give

; was 3,5- The at and

(m, (45

'H 10 of in

at a

2014202047 11 Apr 2014 NaHCO was warm reaction was with the After treated mp <35 The -20 addition Calcd CnHi solid dissolve 530 solution C, CHC1 The 6.60 δ deposited enantiomer separated Sodium [0142] [0141] 1H), 'H

1.70

65.47;

NMR

solids. °C. 85

mmol)

spectra ethereal complete,

°C. cooled z-Pr (m,

3.20

(87.1 3 2

5

Et for ); F (br

°C;

under

3 2

h was 2 azide A the 92.4% 2 of

O , of 2H).

O δ

O H, After CnHi

crystals and brine s,

the

3

(dd,

(,S)-(-)-2-Amino-5,7-difluoro-l,2,3,4-tetrahydronaphthalene (/?)-(+)-2-Mcthancsulfonyloxy-5,7-difluoro-l [a]

solution 2.13-2.28

S: R-(+)-5,7-difluoro-2-tetralol in

g,

The

(20 gave MeOH 5b for

solids. 5.39. in 1H), solution stirred

argon

25

anhydrous

332 reaction C,

(40.0 the

Anal. the

D

are the 2 ee J an stirring mL) F organic and

an +38.1°

2 1.76-1.88 50.37;

=

by were

O ethereal

mmol), mixture

ice

6S)-cnantiomcr

identical:

of (100 with A for

analytical 3

17.2, g,

followed dried Calcd S: (m, was chiral

small 3N

bath was 0.62 a

at

C, collected

phase

(c Et stirring H, mL)

2H), further

evaporated

HC1

an 4.7

50.37;

used over

2 = was

layer

for (m, HPLC. O complete amount mol) 4.61.

and

1.83, increased

mp

2.78-2.96 by maintaining sample: (1.78 Hz,

was

C (2

2H),

stirred

directly MgSCfi. with

10

io was

maintained H, the and

79.9-80.9

L)

was H 4b

CHC1

Anal. 1H),

Found: separated

min

L)

i 4.61. of

1.99-2.06 0 was

under addition MsCl are F washed

dried

(as

mp

added at was 2 EtOAc 49

rate

0:

(59.0 at (m,

3 5.20 in

Calcd ); identical: then

-65 Found:

determined

Evaporation

78.8-80.5

-65

the

C,

the

reduced 93.4% C, cooled in (37.2 to

2H), °C;

at to

and

°C

(m, g,

of with 65.21;

vacuo was added °C (m,

internal 50.41; achieve

next

for

DMSO

320 [a]

hexane

to

3.07 C, mL,

washed and

1H),

ee 2H), (-15

CioHi added mp

brine 25

C pressure -68

50.41;

°C; step.

H, mmol) o to

at by

by

H, allowed (s,

55.3

for

of 84-85 total temperature -16.6°

°C) ,2,3,4-tctrahydronaphthalcnc. 2.63-3.08 a 6.67

give °C 5.47.

[a] (1 chiral (200

0

3H),

TLC)

(200 to rate 4.64. F the sequentially

Trituration 1

H, 2 25

L) g, for

using

0:

help and

dissolution, and o the h

(m,

°C;

mL).

480 to 4.65.

solvent

3.09 (c Found: to with +16.8° HPLC: mL) C, 3 whereupon The and

limit alcohol Et the

complete warm h =2.23, 2H). [a] an (m, 65.21; mmol)

3

(dd,

and

N

below

stirring and water 25 The spectra residue ice-MeOH

3H),

o the (c of gave C, (74.2 with 'H

to J=

quenched

-37.8°

Anal.

= H, dried the

CHC1 (10.9 seeded

a 65.38: over NMR

temperature hydrochloride.

approximately

was dissolution 4.15 1.86,

-60

small the

17.1 5.47. an until IN mL, dissolved for layers

3 Calcd (c (MgSOj. 5-10 g,

off-white °C. ).

added resulting HC1, bath (m, (CDC1 H, CHC1

solution the Hz,

= Found: 53.9 sample 47 a by

Anal.

5.42. were

clear 1.24,

min.

1H),

The 4.7, (S)- %): and the aq. for

3 of to to in g, A 3 ); )

2014202047 11 Apr 2014 pentane/CH volatile mL) mixture yield nitrile reaction the bath to mp the the resulting the 2103 hydrogenated give sequentially diluted solution carbonate showed extracted g. amine 54.68; 6.93 (m, filtration for enantiomer [0143]

250 obtain

C10H12CIF2N: remaining fine >280 mixture bottle

1H),

and and (d, dihydronaphthalene

(44.8

cm

hydrochloride mmol) product H,

J= oil with precipitate

was

heated ca. mixture

mixture treated 2.63 ’ a took drying

with °C; 1 in

(5)-(-)-(5, 5.51; ;

was

solution.

which

2 g,

8b 9.4

m/z C12 washing

10-15% had air. obtained.

[a] over in

H2O

(m, solvent 202 about

EtOAc are

Hz,

evacuated

(39.4 at

N, (9:1) over water 25 with

was been

was 171

C, Recycling

D

1H), was

mmol; identical: 50° 10%

filtered 6.37.

(1.8 7-Difluoro-l, -60.2°

1H),

54.68; Further

4

8a of

MgSO the formaldehyde afforded stirred removed

filtered

to

(M g) (150 h). stirred rapidly

2.83-2.92 C

The

Pd/C

(50.27

L)

starting

give

7.00 +

combined

and (8.50 87.5%): ). for

Found:

(c and

The off H,

mL), mesylate

4 and this water mp

for

.

=2.68, through (6 an

(dt, The 16

5.51; for

the starting and

chromatographed Evaporation in g,

recharged

moist

g, g)

>280 a

oil amine

amine 2,3,

extracted followed h (m.

vacuo J=

229

azide further 30 C, mp

(300 in

washed

51.2

azide

under N, pentane (51.3 sodium MeOH);

4-tetrahydronaphth-2-yl)(cyanomethyl)amine.

a (138

2H),

54.31;

min, Celite, 9.4,

solid

mmol) °C;

73.1-76.5

6.37.

2.5 50

free

gave mL) remained. to (101

mmol)

6a g)

1

2.5 with a

[a] by g, 3.14

L give

with

KCN

was with of

h bisulfite

extracts

Found: N2 which was amine

H,

Parr an stirred

0.53 was 25 g, was 'H a at Hz,

the

o

few

a (dd,

483

hydrogen

additional 5.52; atmosphere. transferred

EtOAc, as

80 NMR

°C; +58.5° on

added

white

pentane bottle (15.0 mol)

treated solvent 1H).

dissolved

solidified.

a °C, with

(7.12 additional C, J= mmol) Chromatography silica

with complex

[a] volatile N,

54.64;

(i/

was

and solid

25 cooled (60 g, Anal.

(c 16.7, and

ethereal

6

6.44.

D

with

H -DMSO) under

using to g),

5.35 230 (4

=

as -58.0° the psi) 2 to

added

O

then

(90.4

in

1.63, remove

H,

(30.8 5.0 Calcd

a The oil. x which pellets a TLC

a

to (2

mixture

mmol)

g colorless

for The EtOAc round-bottom pentane reduced

5.51; solution

250

HCI

Hz, of room anhydrous x

(c in

g, MeOH).

reaction

δ 6

g, Further

(5%

100

for

product.

spectra

= one 412 h.

of 1.79 quickly on

mL) 1H), (IN, evolved N, 230

was

placed 1.63,

temperature,

C

NaOH

After (1200 mL),

MeOH-CH

as pressure oil: 6.40. portion of silica mmol; io

(

mmol).

3.46 500 H

m, the

followed mixture

added. NaOH elution

Anal. for ether. CHC1 i IR

2

brine

each Combined forms in C1F

flask,

N2.

sufficient 1H), mL) mL),

eluent gave

(m, (CHCI3)

the 77.9%): a

and

gave

2

3 Calcd 50

N:

After

hour, (10.0

); 2 (The

(100

with

The 2.33 1H),

was Cl (R)- The The

and and and and

the the the

°C by 'H C, to

2 a )

2014202047 11 Apr 2014 NMR thioxo-l//-imidazole. treated was mmol) were reduced heated 244.7 2.14 262.7 Calcd 64.85; dihydro-2-thioxo-l//-imidazole. 3.80; C, 309 elution C14H11F2N3S: 9.3, °C; slurry and formamide and enantiomer [0144] [0145] 1H), 1H), 1H), 10%

53.32;

(M [V] then

the

2.4 evaporated,

2.75 7.05 (m,

N, acetone/CH2C12 3.70 cooled

(CDC1 for in

°C; °C;

H, was + at with

25 of

).

residue pressure. 14.42. Hz,

10% d

placed 1H),

C12H12F2N2: H, (m, reflux (dt.

5.44; the [V] [V] (5)-(-)-1-(5, (5)-1-(5,

(s, Anal.

-69.1° and

added

9b

KSCN 3 in

3.96:

) 1H), 25 25 J= MeOH/CH 1H), 2H),

column

2.15-2.28

C,

δ

D D ice/MeOH are

ethyl Found:

N,

in was (120 the Calcd 1.50

+74.9° -90.5° 57.72;

9.5,

(c

over N,

7-Difluoro-l, 3.03-3.35 8.29

Toluene identical: an 6.62 12.60.

(78.1

=1.18, residue

formate

dried

(br gave 13.24. 7-Difluoro-l, °C 2.4 with C,

ice

The for

C, 20

(c (s, H,

(m, (c 2 (m, 64.85;

s,

bath) C12

g,

Hz, 57.85; bath

(-15 Found:

Ci

min.

=

= the 3.80; under

1H), DMSO); nitrile 1:1 1H),

was

804 dissolved (m, 1H), 4 2H); 0.398); The 2.14, on mp

(48.7 Hi3F

1H),

product

°C) to under McOH/CFFC

2,3,

H,

to

After 3H), added 1.70 H, N,

mmol). The

13.3

64.4-73.6 spectra 2.74-3.05

give high C,

2 MS (44.7 DMSO). 5.44; a 2,3,

N3OS«0.25H

mL, 8.73 and 4-tetrahydronaphth-2-yl)-5-aminomethyl-2, 3.85;

14.42. silica

IR

65.07; (m, 'H above 5.19

N2

(br the

4-tetrahydronaphth-2-yl)-5-cyano-2,3-dihydro-2- in

51 m/z a

and vacuum

(18.05

stirred

44.7 (KBr)

(s, N,

NMR

g, precipitate. N,

for

for 1H), IN

The

reaction

s, (1

(m,

Found:

222 1H), 201 12.60.

evaporated °C; nitrile (m,

H, 14.45. Anal. the b kg) g, 1H); HC1 19

mixture 2.05 while

1H), g,

1593,

gave (i/

5.47;

604 2 4H), mmol)

[α] (M to 9.70

h, O: (5)-enantiomer column 6

62.1

-DMSO) Found:

(990 MS

(5.00 Calcd had

25 C, + give

and 6.94 (m,

).

mmol) C,

the

π /-BuOK

1630

N, (br 5.64

The

57.82;

mmol; +52.3° was

been m/z 53.57; to

Anal.

mL) 1H),

in the

primary (d,

an g,

packed s, 12.44.

for

C,

remove

filtered (m,

butyl

cm

J= 1H), in 17.2 stirred 291 δ

solvent

oil

65.14; 2.55-3.04 stirred

H, and C14H11F2N3S:

(IM ’ 2.18 Calcd H, 30.8%): anhydrous 1

(c

1H),

; 9.3

(53.2

The 3.92;

mmol)

are in (M 13.7 formate 'H amide 4.33; ethanol =2.12,

solid in last

for

Hz, (br hexane.

H, +

for then 6.90 NMR identical:

).

spectra

for THF, (br N,

g).

5.54;

135 N, (m, m, traces

m.p.

1H),

18

in

Anal. was

11a:

CHCI3). C12H12F2N2: 14.37. removed s, (d, THF (497 (240

13.39.

THF 1H), (t/ h, The 4H), min

302

1H);

N, Elution C, 7.03 240.7-249.2

J=

for 6 loaded

the

-DMSO) of

mp

mp

3-

Calcd

(935

mL), 57.72; mL) 12.53.

resulting mL, 2.47 at

3.22 (75

(Further

the

solvent, MS

9.2

solvent Found: (dt,

261.9 243.1 85 under Anal.

with

mL) mL)

as

was

(R)-

302 and Hz, m/z (m, J= (m,

for °C H, C,

δ a ­ ­

2014202047 11 Apr 2014 then was tetrahydronaphth-2-yl)-5-aminomethyl-2,3-dihydro- by treated with prepared 4.96; hydrochloride extracts and solution solution 0.8 C -10.8° Calcd (m, dried (3.12 dihydro-2-thioxo-lH-imidazole Ci4Hi 58%): (5.2 sodium solvent stirred for [0147] [0146] l,2,3,4-tetrahydronaphth-2-yl)-5-aminomethyl-2,3-dihydro- 12.39. i 4

chiral H

nM)

1.5 3H), the

g) stirred

the

EtOAc i

6 5 g,

under

N, for F2N3S«0.25H C1F for

Nepicastat on h.

with

was

aqueous mp

(c potassium were solution

(30 of and

10.6 4.77 HPLC); by

2 Ci silica (5)-1-(5, 15 The

N 12.18.

LAH

under

= mL) partially several 4 EtOAc the 3 human

nitrogen

min Hi

S«0.35H 170 mmol) (m, washed,

salt reaction

1.43, 6 eluting

phase

addition was ClF

was in

1 and was 1H), argon H (3.87 7-Difluoro-l,

tartrate

°C; 2

THF (IC50 times

The O: (150

2

NMR

N which

stirred removed 2 added,

treated

O: and demonstrated DMSO), dried

extracted 6.84 3 C,

was with

S*0.5H g):

in

[V] (1

of mL) = spectra

56.07; without

C, (T

until then

an

9.0 mp

(m, M,

again had 25 for ethereal 5% (MgSO followed

with

D = 49.73;

and ice 2

under

± hydrochloride 34.3 2,3, O: 245 30

2H), 320

with MeOH/CH been

H, under the -11.0°

91.6%

0.8

cooled water

for bath evaporating min

ether 4-tetrahydronaphth-2-yl)-5-aminomethyl-2,

5.21; 4 C,

°C °K, to

mL, ),

7.05 mixture HCI nM) H,

reduced

10%

by dissolved

be the 52 49.33; and at

(dec); until

high

DMSO) (100-150

4.98;

(150

N, to

34.3 (c 0 10% ee

(s, a DBH. (IM,

McOH/CTLCfl

2 evaporated. °C

competitive (R) 0

C12 14.01.

a

1H),

vacuum

=

became °C

by H, pressure

[a] (nepicastat). mL), N, mmol) MeOH/CH to and -enantiomer

homogeneous

20 gave

in

25 δ

and

The 5.03; dryness. 1.59,

mL). 12.42. 8.57

D 2.07

chiral allowed

MeOH mL,

are Found: filtered +9.65°

the treated was 5-cnantiomcr

at freely

(br N,

and identical; (m,

inhibitor The

20

DMSO). Chromatography free

2

78 Found:

(2 C12 HPLC.

added

s,

12.33. (250 (IC The

C, to mmol) 1H), displaced (c

off,

The

(R)-l-(5,7-Difluoro-l, organic with 3H), x

amine

stirrable. °C solution come 56.11;

(200 50 =

125

resulting

s

mL)

washed

2.68-3.08

1.70, hydrochloride of

mp dropwise for = C, a

12.4

Found:

to

mL). mL)

saturated bovine to 25.1

(R)-l-(5,7-Difluoro-

(2.92

Anal. layer H,

49.80; 261-263

Anal. by

20 by the

DMSO); room was (br

5.10;

and Further with ± warming.

precipitate

co-evaporation

h The

free g, of was

s,

(m,

0.6 over

obtained. (IC50 C,

to temperature H, Calcd

the 9.89

the 1H).

Calcd N, solution

3- ether, °C; combined 49.44;

4H),

separated nM; amine

give

4.93;

(93% salt

mixture 10 14.14.

= residue tartrate

mmol;

2,3,4- [a] Anal.

8.5

min,

4.09 18.3 was was

for The

and

the for 25

N, H, 2a

ee of A ± o

2014202047 11 Apr 2014 mixture was purified was measuring ± produced parameter membrane parameter normal inhibitors Figure 0.5 CUSO4, administration and (DA)/norepinephrine approximately and enzymes selected established (without detection standard). stop concentration (final determined [0149] [0148]

0.6

- highly performed obtained cerebral

solution 1

volume nM)

Oral 3 The

milliunits

containing 0.1 from dogs enzymes

and shows inhibitor),

at sustained of

concentration-response logistic

the

preparations. The selective

and

by assays. activity mg/mL administration 280 the

neurotransmitter of cortex.

the from 2-3 conversion

of containing produced

samples

at of

SKF bovine radioligand the a nM.

200 and culture equation. pH table fold of

increases

nepicastat catalase, Sigma inhibitor inhibitor

catalase,

corrected of (NE)

enzyme

102698 The 5.2

receptors. more pL).

The Chronic

and were nepicastat describing

Binding medium

potent of

and

25 ratios

Chemical of

affinity remaining human

potent

K, tyramine

binding

at tyramine in of analyzed 0.1 Samples

(IC50S were nepicastat mM

receptors. 32

using

values produced 37

the

oral

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mM curve

Nepicastat and °C data

°C

of

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added EDTA of

=

administration

in Co

the

for internal tyramine

assays in to

were eleven percent

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nepicastat

the

0.125

vitro. to octopamine.

30 (St neuroblastoma

obtain These octopamine

dose-dependent

to

DA/NE

ascorbate

spontaneously R-enantiomer calculated and

- ± analyzed

incubated respectively.

Louis, showed

using the

40

arteries different activity

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IC50

min.

data 240

reaction NaOAc,

of

nM;

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standard

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mM

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suggest by

using

by μΜ Bovine The

was

thirteen with enzymes nepicastat

85.0

increases

cell

iterative and

reverse

suggesting

In the

hypertensive added mixture ascorbate.

DBH reaction 10

3-hydroxytyramine calculated

and

affinity Human

or the

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selected

activity

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curve nepicastat

to

DBH

in fumarate, and

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normal In based

determined

tissue

SHRs, HPLC

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a

techniques fitting the was

a

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non-linear typical

left

nepicastat

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on

appropriate

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dogs

acute

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(>

equation.

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using assay

4

other

four was also oral was

UV μΜ and and

the

by

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2014202047 11 Apr 2014 mesenteric mg/kg, ventricle) with release. norepinephrine neurohormonal progression neurohormonal renin-angiotensin be heart DA increasing however, II, h CHF congestive cardiovascular sympathetic antihypertensive (vehicle) study, spontaneously such enzyme evaluation. angiotensin-converting adrenoceptor β [0150] [0151]

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have

expected

levels

halothane, is as failure.

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po, characterized been beginning responsible low

Previous

or have were

heart the artery. that

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alternative

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of vasodilation, nepicastat. has

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increasingly

tissues

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is This

to 54

inhibitors, to T as The

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NE

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the

assigned the

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has beagle

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SNS.

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natural of

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dose,

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CHF

SKF-102698, potential α mortality tissue their

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-hydroxylase formation

perchloric history

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for

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study

sympathetic in advantages

On

system were

perpetuation the the

to of

effects

is

of have

ACE

development of

of

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inhibition

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DA

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ratio angiotensin (DBH), aldosterone a

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day drawbacks (SNS)

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12 of of β- to in in in

2014202047 11 Apr 2014 perchloric the placebo were potent nepicastat mesenteric mg/kg the mg/kg ratios increases Marshall and (cerebral appropriate study, liquid and concentrations samples and fold, dogs) dogs. assayed [0154] [0153] [0152]

mesenteric DA first glutathione, SKF-102698

whereas

investigated

nitrogen

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concentrations

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species.

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dogs

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left

14, and same

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increased biochemical °C

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and

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ventricle) 11 and

cerebral were

3.5 and Animals the by

samples dose,

dog

and mg/kg to cerebral

55

cerebral

NY) HPLC analysis.

and

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first

and receive

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was 3.2

2 the increased detection.

cortex,

1.1

mg/kg,

were

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ventricle effects fold day

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cortex, SHRs cortex, fold

-70 Tissue either

treatment)

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collected randomized

respectively.

dose-dependent

is

at electrochemical

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°C with

for

SHRs)

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-70

respectively. Male and respectively. both

in

placebo NE until weighed,

ratio

the

5 the

pentobarbital

°C for a

by cerebral

potent

mg/kg and

in SHRs on

and day beagle

analysis.

by

until study. in measurement 5.5-fold,

14.5

tubes

to

the DA

(empty the

These 8.3, 95, for

placed

receive,

than

in and

analysis.

plasma increases

cortex detection. concentrations days.

DA/NE 4.5 dogs

151 Compound When 7.5 containing dogs) On

dogs

data 3.5-fold

its

capsule) and days.

and and

in the

(10 Compound

in orally,

DA/NE

the

Daily

tested

suggest iced but

ratio

the of Tissue 80 in

day 1.5

SHRs

- maximal

6

and

DA/NE

is

heparin fold

B plasma

tissues fold h 16 0.4 or

of

in blood either

at more at were ratio after

2.7-

that

and

NE

kg, the the the

(in 30 30

M in B

2014202047 11 Apr 2014 restrained to nepicastat relative mg/kg pressure recorded the with the recorded the Hemodynamic in onset, obtaining of heating obtaining catheterized The cord and significantly The frequency The efficacy [0156] [0155] [0158] [0157]

a the atropine

orbit

new

appropriate appropriate animals animals 10.5 animals were

1

DA/NE

reaching (30,

A The Oral Oral ms pad

to

steady-state at of

at for %, for

baseline baseline maximal

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(37 the

administration were were dosing

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mg/kg,

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eye h. and its °C)

highest measurement dose dose

pressor

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of

measurements, measurements, plateau response a Nepicastat placed hemodynamic

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and of

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a after and response dose

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nepicastat nepicastat in stainless

was in at

of restrainers Following

curves.

for having tubocurarine in restrainers

3-4 different

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(30 of

observed

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h. activity

blood slight to the the

resulted with

days.

mg/kg)

peak steel

pre-ganglionic high

The

and and with except

animals animals

blood SHRs then The this and

frequencies

56

a

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effect

(2

Harvard precise of (1

hemodynamic hemodynamic

sympathetic

ether the allowed frequency-pressor study, in anesthetized mg/kg; is

significant

nepicastat

mg/kg, pressure allowed (15 at

The were were a unclear

10 at

0.3

and

dose-dependent

-

reason

approximately

mg/kg the and rodent

pithing

16

(0.15, mg/kg b.i.d) to

(p nerve treated, treated,

iv), the

to

rats week of recover

< drug was decrease at

drive

left recover

the

for with dose. 0.05)

ventilator. 53

produced

parameters parameters

stimulation 0.45, rod were present. (180,

further

orally, orally, old) femoral the animals administration, ±4

response

pentobarbital, was to for

lowering

The

pithed

at loss 1.5,

210 6-7 for were mmHg antihypertensive cardiovascular

30

assessed 10 stimulated

with with

a

response

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40 used

and

curve

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of

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minutes.

40

30 pithed

then administration

and Hz)

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in continuously in continuously respectively.

of

placed

was

min. mg/kg, was min)

electrically

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the vein

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slow

arterial

shifted

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and

After After were

on

(9.8 not

or or of in a 1

2014202047 11 Apr 2014 thyroid the tissues, the used of Example in a significantly fold significantly evaluate (arterial-coronary study compound animal active %, %, after deficient [0159] [0164] [0163] [0162] [0161] [0160]

known

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were:

inhibitor mesenteric

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function

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These tolerability of

effectively to

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for

The probable

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10. rats caused

42

< findings study of

effects Both whereas

the coronary

data

compound portion 0.01 right

% (n mammalian

treatment

of and

=

doses

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mechanism

relative modulates

catecholamine

9-12) in

nepicastat significant of

and

nepicastat will nepicastat heart 44 doses

of sinus

a

various 57

of

nepicastat norepinephrine %, dose-dependent

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for

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nepicastat

failure also

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CHF.

10

< the

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2.0

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devoid doses showed 0.01) days.

heart

changes

its levels

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subject

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12 anti-hypertensive significantly

structurally and

controls)

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of

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were 6.2 after

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is

patients. significant from nepicastat

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of levels

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future drive

the effects after (maximum similar

raised weeks levels

3

The

not

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behavioral sympathetic po, on and

selective

four effect effects to

mg/kg, to

publication.

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of

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transmyocardial b.i.d and 7,

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methimazole, nepicastat

T

DA/NE 46

942

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samples

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ratio

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4 not the As

on 58 31

to to in h 5

2014202047 11 Apr 2014 NYHA resistance, mL bands with by these the patients were ventricular of of of counting. liquid/liquid Triplicate and corresponding after [0167] [0166] [0165] [0172] [0171] [0170] [0169] [0168]

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Left Six-Minute Hospitalizations Hemodynamic Quality hours

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linear method.

blood

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weeks

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in

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extracted 12

patients

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Further

methionine.

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12 weeks

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start dosages into

output,

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for by of

2014202047 11 Apr 2014 N-acetyl nepicastat. performance was norepinephrine, phenylephrine the nepicastat norepinephrine into Example intravenous Daily inhibitors DBH activity, dopamine/norepinephrine significantly levels spontaneously affinity showed 3) [0174] [0173] [0179] [0178] [0177] [0176] [0175]

cardiovascular

R

analyzed

four inhibitor enantiomer

in treatment

Nepicastat A Preclinical In Overall, The The

for a

and the

metabolite

8

pooled

binding for

on

studies categories: these

binding

heart, The

of its aortic

administration the

human

responsiveness in

SKF-102698

hypertensive the decreased binding levels an nepicastat

receptors human

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increase

method.

in

with affinity vitro contractile of

nM),

DBH

vitro

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nepicastat

affinity plasma

potent

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male

listed was denoted

in

increase for was each

biochemical (85 norepinephrine less and

Thus

rats

resulted 4)

or to

dopamine,

in

nepicastat an

inhibitor behavioral sample

nM). at renal values response

above.

than

9 spontaneously

the day in assessed in

(SHRs)

nepicastat selected effective nM as (10

rats

vivo

mesenteric

dopamine

5.0 Compound artery, during The

in 59 comparable was (CL

mg/kg,

and

of and

for

was effects

pharmacology

relative in a S the effects.

receptors.

used

both

inhibitor

6960),

and Ml, enantiomer monkeys, and an routine

significant and vitro screened

ability

levels), increase

artery

p.o.)

hypertensive the bovine as B. Dl its

(i.e.

to to the significantly

cerebral

primary to

increased and

of use the

The of

normotensive

from in

showed Quality

the at

DBH 2)

nepicastat phenylephrine

and

in the Wistar-Kyoto D2,

of studies

(p<0.05)

selected SHRs

in

the effects 0.5

ability

human the cortex

metabolite

vivo compound and in

rats dopamine/norepinephrine Control a to

lower method

rats

similar

dopamine for 5HT

were

4 studies

receptors. was

on

in

hours DBH.

decrease to (SHRs), Wistar-Kyoto and

both 21 ia

thyroid rats. more than sample

,

is conducted decrease were to

lack to 2A

are

dogs.

following days

species.

inhibit

impaired The and

monitor

that

potent

subdivided Nepicastat of not

nepicastat and

in

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2c. restored

IC50 binding

Oral

for

potent

tissue tissue

DBH

with than rats.

oral

The

and the the the

for or in

2014202047 11 Apr 2014 norepinephrine mg/kg, mg/kg, ventricle potent norepinephrine ventricle the mesenteric ratio i.v. observed or in increases in Dawley catecholamines days effects cortex caused dose-response and dose (up dopamine/norepinephrine decrease cerebral significant [0180] 1 10,

hour,

dopamine

i.v. the

left 30, to injections

100 via in responsive

25

in

were administration The respectively. in a cerebral

or ventricle the and

rats

mg/kg.

left

the cortex. and

significant days) in inhibiting in the

100 and

artery mesenteric

in effects was

the increases

the

drinking at significant

mesenteric (3.0

ventricle).

left study mg/kg,

(15

dosing. 2.0

was left

mesenteric levels concentrations,

dopamine/norepinephrine long when cortex In

at norepinephrine

and

mg/kg) ventricle SHRs

of

mg/kg) ventricle and 1.0

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cerebral at and

artery assessed

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6.2

at only artery

6.2

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tissue

dopamine

10 Significant given mg/kg were in

(0.3,

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mg/kg. observed at

at

three

male the cortex. mg/kg.

and

(1-6 in

male

doses

were

6 in and at

cerebral hours was

30

0.6,

the seen

hours

in

dopamine/norepinephrine 12 male

p.o.

in

and 1 mg/kg/d).

SHRs

doses

and

decrease the Sprague-Dawley the

mesenteric significant harvested and or the of

Significant hours

and

Taken in at

The following

b.i.d., 60

changes In SHRs following

dopamine/norepinephrine 0.3

10 dopamine/norepinephrine cortex 100

10

cerebral female

1.0 were

following an ratio

Sprague-Dawley the mg/kg, mg/kg, apart. mg/kg/d

effects

together, mg/ml).

mg/kg. with in and

six

administered in

elevation of artery changes dopamine/norepinephrine norepinephrine

Wistar

changes

in

cortex 10

the a Sprague-Dawley rats no

hours

in mesenteric oral

The single

of

mesenteric

days rats p.o.

mesenteric the significant

in nepicastat In Similar (60-100

rats

administration

only in nepicastat rats

24 after

conclusion,

left 6 in

for oral

of the

hours

in

ratio

hour dosed these rats

12 with

ventricle at

the

dosing

either artery, significant dopamine/norepinephrine

mg/kg/d) dose

hours (10

100

resulted

dopamine effects

artery (3.0 there artery after

ratio third

either time

parameters

ratio with rats

mg/kg)

mg/kg.

on

at

nepicastat 7 and to apart

mg/kg)

the

at was

of

dose. 0.3, were

were

course or at acute nepicastat observed

in dopamine dopamine

male than

in 3.0

either

24 dose-response second 3.0

ratio

25

significant at and the a 1,

In found mg/kg,

hours

Nepicastat significant significant

or

in either and in were mg/kg, 3,

days

Sprague- of

a was increase

10

cerebral

chronic the the

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of

in tissue

or

for to at

also

two less 3.0, had and and and left left

the the the 30,

30 30 be

in at 7

2014202047 11 Apr 2014 peroxidase mg/kg/d. nepicastat that inhibitor hours or When in interest increasing increase significantly from and single dopamine/norepinephrine and levels dopamine/norepinephrine significantly extending cortex, doses days) a stimulate enantiomer artery SHRs. [0181] [0183] [0182]

decrease

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Nepicastat Nepicastat Nepicastat to

and

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was not

the

through assess

for was

in and dopamine

in lower

in dopamine male

(30 renal or

plasma less vivo, alter release

no the 10

decreased 102698 artery a 60 three

studies

mg/kg whether

was

days,

potent, significant

beagle

tissue left

has caused 60 medulla, effects mg/kg/d) plasma (the nepicastat

renin

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ventricle

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p.o.).

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orally

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increase with thyroxine there methimazole

30 male 5 at

purified

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dopamine/norepinephrine nepicastat and

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SKF-102698 similarities hours activity

significantly

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a

was

cerebral mesenteric increase

beagle

plateau norepinephrine these However,

in and left

but

norepinephrine

inhibitor in after decrease

of 61 a

dopamine. results

DBH

in

levels,

male ventricle

significant did was 4 in was The

(2

dogs

male

60

or to cortex. administration

plasma vivo in

mg/kg/d)

not

in increased methimazole,

(see were Sprague-Dawley 12.4 nepicastat potency

artery significantly

significantly

response

of in

does

for mg/kg/d, SHRs.

alter decreasing

studies

norepinephrine

and DBH

In

mg/kg/d,

levels 4.5 above). observed Norepinephrine renin decrease

in

not the

and dopamine

significantly

mesenteric

relationships

days

SHRs

Thus,

in at

strongly

ratio (30 cerebral beginning

alter with

increasing activity.

of

dogs

and

more all

a p.o.

more

(5,

norepinephrine and

in

30

in potent However,

after

nepicastat, in nepicastat

plasma

rats

the doses. levels,

15,

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had

at 100 parallel the cortex,

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fed

left and doses

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has

inhibitor no dopamine mg/kg/d renal

was in renin the

a 10 ventricle,

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in

effect and

been

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than those the

when

of

mg/kg/d

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of

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on

ventricle given obtained

increase result given

least and

thyroid and

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renal for

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the the

an 10 12 of to in in

at R 5 a

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triiodothyramine

not

mg/kg, 30

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levels

in in Nepicastat Nepicastat Nepicastat Acute Daily mg/kg). causing impair the p.o.).

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SHRs

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to DA-1

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at effects

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measured blood attenuated pretreatment pressure anesthetized

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3

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pressure

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rise

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(-46 and in

directly

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and

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following

both uninterpretable.

in with unlike SHRs significantly

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in

if did of p.o.) blood in

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100

in

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blood

tail in

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dopamine

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for

reduced hours pressure

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method. normotensive Overall,

for

up lower

potassium.

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in

after

21

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when did

heart

4 30

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with decrease

blood hours

nepicastat not

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rate the

(DA-1) mg/kg, did

radio SHRs blood blood affect

after flow rats,

was The rats

(10

but not

of (3 to in in ­

2014202047 11 Apr 2014 p.o.) produced norepinephrine norepinephrine nepicastat nepicastat the occur of in in observed output observer instrumented combination sympathetically-evoked dopamine decrease dose arterial decrease additional effect significant [0191] [0190] [0189] 100 100

arterial anesthetized

the

peak mg/kg/d mg/kg/d

(3-30 that

with

over

or antihypertensive Nepicastat The Studies blood

in in in

decrease

in renal failed

no

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levels, mg/kg reduction

following

enalapril 30

renal blood SHRs

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with

a days.

blood

male a

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levels pressure in greater pressure

blood dose

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in

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normal

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30

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to

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responses.

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blood period

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63

carotid

with

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in to hours

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5

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pressure

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renal

a

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30

transducers

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in

studied compared days

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(30

was

caused

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in mg/kg/d.

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in mg/kg)

of

left inhibitor A left

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for

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significant 12 to

Thus,

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with

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At effect

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a

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rate,

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30

30

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peak

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of of of in in A a

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Nepicastat in No Nepicastat When

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p.o.)

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response

mesenteric lowered response

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30

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with

p.o.).

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observed

mg/kg behavioral

to

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In nepicastat

male

and and

throughout to nerve 64 Thus,

nepicastat

conclusion,

occlusion

in p.o., with the

i.p.). by

reduced

a

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non-significant

beagle effects

plateau responses. nervous the in

in

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effects and

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heart artery at degree

to

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in

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system.

rate did

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at cortex. treatment

does

anesthetized

human day

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DBH

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6

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days

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shown

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In

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to

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daily

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tyramine evidence

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days activity

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30, the

of to in in at it

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Nepicastat Animals Following Each The (n=9 Sixteen- into time

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lower

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administered

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left

10

study, hours nitrogen

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artery

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24 in

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24 16 of of

2014202047 11 Apr 2014 Nepicastat treated were values performed. to vehicle vehicle norepinephrine out Pairwise + intravenous Example in However, dopamine/norepinephrine significantly allowed dopamine and administration across spontaneously afternoon [0215] [0214] [0213] [0212]

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11

Fisher's

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male and

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the study

six

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of

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15 few

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rats.

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rats

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all

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the

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frozen

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mg/kg series

were

B

procedure

and rapidly statistical S

assayed

Compound different strain

KF-io2698 beginning (SHRs) lower), error with at

volumes.

and

of treated water 100 compared to weighed

Each 30 at

with

differences the

separately.

rate. stored halothane, harvested,

each mg/kg

mg/kg

(p<0.05) by (Charles vehicles

analysis and General rat vehicle vehicle

in group factor

B

dose high

was

The and

at

the the the

of to in

-

2014202047 11 Apr 2014 vehicle than not nepicastat the in dopamine/norepinephrine significantly and dopamine/norepinephrine dopamine dopamine effective did and (p<0.01) The concentration (p<0.05) significant significant greater SKF-102698 [0229] [0228] [0233] [0232] [0231] [0230] 102698

a

significantly dopamine/norepinephrine the

not 100 significant dopamine/norepinephrine vehicle

Dopamine Dopamine In In In than Comparing

at dopamine/norepinephrine mg/kg

than

significantly than

(p<0.01)

greater

the the the doses and

compared concentration increase increase

vehicle

at

(p<0.05) at

mesenteric for cerebral left was the Compound

of

increase

of doses a

lower

than

nepicastat ventricle, nepicastat.

dopamine/norepinephrine dose

concentration not 3, than concentration

nepicastat in in at

to

10,

lower

all dopamine cortex, of both

significantly norepinephrine vehicle Compound lower of

in Compound

in

30,

artery, doses 3, ratio ratios

B

30 dopamine

the

relative dopamine at and 10, norepinephrine (p<0.01).

ratio. mg/kg. relative

than

ratios

with in lowering at cortex

of

significantly

relative 30 and

100 in ratio. the in

nepicastat.

doses

B

vehicle less and the to B

Norepinephrine

SKF-

in the the mg/kg (p<0.01). left and

to was and levels. treatment at The

71

the

left Norepinephrine (p>0.05)

to treatment of 100 norepinephrine dopamine/norepinephrine ventricle mesenteric lowering the

102698

norepinephrine significantly

treatment

mesenteric increase

ratio. 3, of

at ventricle

levels. mg/kg. dopamine/norepinephrine (p<0.05)

Nepicastat

nepicastat. 10, doses

with

than

was with at norepinephrine 30

above

levels

with

artery Nepicastat

30 vehicle,

Norepinephrine was of

greater vehicle and significantly artery

vehicle, greater

levels, concentration was mg/kg

10,

vehicle,

(p<0.01), significantly vehicle

were 100

of

were

significantly

30 than Compound at

(p<0.01) and

mg/kg. SHRs Compound

significantly in was 10, and

ratio vehicle levels, Compound

significantly was

(p<0.05) and increasing

the

30,

significantly

concentration 100

ratio

was

was (p<0.01), greater

had (p<0.05) cerebral than and

Norepinephrine

B and more at

mg/kg.

B

(p<0.01), resulted significantly significantly

no

greater

doses

100

vehicle lower

resulted B increasing

dopamine

for effect

(p<0.05) effective

resulted but mg/kg. greater cortex,

of SKF-

more

with than

was

The in

but did

for

on 30 in

a

2014202047 11 Apr 2014 NEPICASTAT vehicle than than vehicle potent the than vehicle than than than Example Furthermore, of significantly lower and administered left dopamine/norepinephrine significantly lower dopamine/norepinephrine lowered for [0234] [0237] [0236] [0235]

three

mesenteric ventricle,

nepicastat methimazole for for vehicle vehicle for

vehicle

than

Nepicastat In The The than was

than than

with SKF-102698. SKF-102698 oral

norepinephrine SKF-102698

13 conclusion,

vehicle

dopamine

greater

dopamine

for for for doses

over lowered nepicastat the (p<0.01) vehicle but SKF-102698

for artery,

than (p<0.01).

SKF-102698, SK-F SKF-102698,

less were 24 R was

administered for for SKF-102698,

hours. for

(p<0.05). enantiomer

the

left concentration norepinephrine 102698, effective with prepared

(p<0.01). SKF-102698 concentration SKF-102698,

greater was

dissolved

SKF-102698.

data relative ventricle, ratios

ratios

treatment, more The SKF-102698

show

and and and than

in

and in

12

in

dopamine/norepinephrine effective Norepinephrine (Compound the to in

and

the the the

the

hours that in and than

administered the vehicle

and vehicle in vehicle

cerebral relative

the increase increase increase however 72 left

the nepicastat cerebral

Norepinephrine the

for

left the

apart. left

than

ventricle treatment,

nepicastat

mesenteric

increase for decrease (66.7%

ventricle more ventricle to cortex,

B)

above above SKF-102698 above

treatment cortex

The

vehicle SKF-102698, as

concentration is

in

the than

a were

propylene

S

following

vehicle vehicle vehicle was potent above

(p<0.01).

all

was and of

enantiomer, were free artery

concentration

more

SKF-102698 SHRs

significantly

three

with greater

significantly

ratios base

treatment in inhibitor

significantly vehicle was was was

was

the

than

and

three glycol:33.3% was nepicastat

six tissues equivalent.

for greater greater mesenteric greater

in

nepicastat significantly hours

the SKF-102698.

not

doses

of SKF-102698

the was was

(p<0.05) with

(p<0.01).

greater

DBH increase

at different

after

for for for

cortex greater significantly significantly at

greater 30

Nepicastat

nepicastat nepicastat artery nepicastat nepicastat dH2O) was 30 in

the (p<0.01)

vivo

mg/kg. greater greater

mg/kg

above

more were from third than than

The The and

for

to in

2014202047 11 Apr 2014 the treatment prior yield mg/kg. ANOVA radioimmunoassay. weighed. Methimazole if of of halothane, diet administered at (p>0.05) experiment-wise controls experiment-wise each calculated cortex, days. for served [0238] [0242] [0241] [0240] [0239]

a

variance the

norepinephrine

evening significant dosing).

(Purina,

to

treatment

dosing

2.0

Norepinephrine as At Male To Orbital and

treatment. Norepinephrine

at different

positive

with groups Tissue from decapitated, statistically and

four

(ANOVA) striatum

and

each

Sprague-Dawley 5891C, in at

blood solutions difference

6.2

factor a the

hours the Serum 1 group

error

error

1.0 samples (n=12

mg/kg, dose

controls and Animals in

mg/kg day following

were

Lot ml/kg samples

the rate.

DOSE was

evaluate rate. after dopamine and

were -3 levels were levels

per samples

of from 1478,

immediately or were

cortex time

dose

conducted. for the

volume.

were

the vehicle

group): For appropriate

were carried rats, was morning,

carried

determination in

in cortex, control

point. changes not 0.066 groups,

second levels weighed the statistical compared the

were weighing

performed. taken harvested

at

mesenteric

nepicastat ± nepicastat out striatum, out

A occurred. placed

Also 73

1 the

approximately

in

0.042

and dose, non-parametric at ml/kg.

analyzed concentrations

and

using using

T same

analysis day

to a 3 180-200 norepinephrine of

in

from one-way and

randomly mg

on

vehicle

and

thyroid

-3,

Pairwise 0.4 artery day at treated Pairwise Each Fisher's

Fisher's

T

iodine/kg

day

0, the

mesenteric 2.0 4 M

of for

using

levels, grams, 3,

12

were group ANOVA iced methimazole

catecholamine control function.

mg/kg, 10,

7, two-way assigned

animals

T

hours

analyses so

LSD analyses

LSD HPLC. and 3

rats

perchloric

significantly

a were sample) levels of

and that

change

artery

9

nepicastat at

apart,

rats strategy strategy was were (day

to

were within The fed

doses between all between in T

one

groups was performed 4

were

ad

an for 0 from the mesenteric levels, acid anesthetized

doses

not was levels

of libitum

subject iodine of dosed

(p<0.05) to to 10

striatum at

harvested

the

and

baseline

significantly as controls

2.0 the

consecutive treated

control control 6.2

a

following could they

analyzed using deficient to orally one-way first

analysis and 14

mg/kg,

artery, detect

lower

were

days

with only

was and and and day

the the 6.2

be in a

2014202047 11 Apr 2014 mg/kg vehicle vehicle marginally received Adult to marginally total ratio Example observed observed. (p<0.05) and dosed concentrations cerebral dopamine dopamine/norepinephrine significantly level dopamine 7, significantly [0244] [0243] [0247] [0246] [0245]

vehicle. compared

30 T4 of was

male by nepicastat

Nepicastat Neither Dopamine The This control control. levels

mg/kg

cortex the

2 higher

14

oral in

observed or

β

doses (p<0.10)

(p<0.10)

beagle In In -hydroxylase

dopamine/norepinephrine mesenteric dopamine the to (p<0.05) study

(p<0.05)

in

administration

the

the or at 2.0 in

placed vehicle than

the norepinephrine

were daily, either

striatum

kidney levels

(2.0 striatum,

or dogs

mesenteric

in rat

was lower vehicle

lower 6.2

lowered

the not

in

or serum. lower

levels. morning control. the

were artery in

mg/kg

performed in

medulla

single 6.2 following on ratios, significantly 6.2

all 2.0

a in

control. vivo,

with

day

marginally randomly

mg/kg) three

norepinephrine mg/kg T or at both artery, A

Thus levels, nepicastat 3

and T

capsules.

nine. dose 6.2

both levels nepicastat. 4 compared with and

tissues

levels

the 10

afternoon mg/kg

to dose nepicastat

did

both ratio of

or 74 2.0 kidney (p>0.05)

days assigned greater

on 2.0

determine

significant

1.0

dopamine/norepinephrine

not

of affected

were group, and

all

Vehicle 2.0 dose of

of

mg/kg

and the

to

Nepicastat

cause

levels

treatment

cortex (8-10 dosing

the

6.2 effect

not

and

different appears methimazole vehicle, to group

6.2 but

thyroid

cortex of four

mg/kg

the (p

any

was

6.2 hours

and

mg/kg

no from in in Methimazole,

of

groups days significant dopamine Sprague-Dawley

was

to mg/kg the other an from

nepicastat.

with significantly

function

and nepicastat apart) dogs

be

empty dose mesenteric

decrease delivered and treated

vehicle

significant

an striatum of no

of (p>0.05)

dosed

for T

8 effective groups,

ratio by 4

nepicastat (p>0.05) and capsule. significant

the dogs

levels four

animals

were

altering

in control,

in

(p<0.05) positive with when

at artery norepinephrine norepinephrine

rats.

doses per different days. changes

compared

at significantly 2.0

inhibitor

changes

nepicastat.

were group

day Each compared

free

while produced

than

of changes and

control, On

higher

3

T 5, were from

only

dog 3 and and

the the 6.2 the

15 of or to in

2014202047 11 Apr 2014 An the tissue plasma mg/kg/day). were norepinephrine ng/mL harvested, of Example stored six fifth sodium deemed catecholamines containing apart). groups daily deviations (D/NE) expressed separation (DHBA) after [0248] [0251] [0250] [0249]

plasma hours homogenates aliquot

day, the used

at

was

at

and

Male Each To Tissue

was Daily ~ pentobarbital (n

necessary were

AM

-70°

15 as after

each

10.00

in for weighed, using as homogenized heparin levels a of quantitate

=

separated

internal

analyte linear

Beagle the

dose,

blood C. Each each each

obtained samples 8/group):

pg

the

dog

and and AM.

study. electrochemical were of

of

to last

range

analyte and a supernatant

received the

animal the

samples

placed determination

nepicastat dogs

final standard. analyze

analyte (40 Animals

concentrations and

were dose. centrifuged

other glutathione ratio for

The

placebo by

of

mg/kg, blood

(Marshall

divided

and

received

2.0 each in

also brief

(10

animals a for of Samples tissue

per

cold single were D/NE was ng/mL and

dopamine

The

sample analysis

ml) taken

dog. detection. iv), (empty sonication

into was gram at

and

0.4

removed

catecholamines

catecholamines.

randomly

farms, were 2

extract were ratio

of dose

13,000

placed

of to from

two doses normalized 75

centrifuged M

In (10

norepinephrine of 400 of kidney

capsule), drawn were concentration

allowed perchloric in

addition,

North

nepicastat

samples,

ml) the

tissue. from in rpm The and on ng/mL the daily,

assigned

0.4 dogs provided

was

medulla

a

6

morning

spiked method in

Rose,

each necropsy

to h water M at

at

morning

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the at one after

the acid, The

- The microfuge . perchloric

a

the

4°C to nepicastat

each sample NY) later

to with (NE) calculated

for weight and ad for

has the

one

and blood end concentrations frozen norepinephrine

Dogs

within

table libitum

each

the

analyte. kidney point. and weighing

AM 3,4-dihydroxybenzylamine

a

of the

and of

was quantitation

of measurement

for the acid.

was

treatment the were

and afternoon in

dose dogs

at the lh

dopamine

means and

30

subjected On following cortex

liquid

study

of

2 collected

euthanized

tissue

anesthetized

between After

for

minutes were

given day collection. mg/kg

of

concentration in measurement and

group. nitrogen were

(8-10 limit

15, sample

sonication, euthanized case dopamine,

food of (D),

treatment to

standard in b.i.d at 9-16 6

rapidly plasma

with

HPLC

of

it

hours hours

4° tubes

once each

with

was The

and and

2.0 kg C. (4 a

2014202047 11 Apr 2014 was biopsy ventricle. was period with within mean within variance Helmert In PROC analyzed frozen abdominal second confidence animal. steady concentration a (cf. statement, groups day 0; The [0252] [0254] [0253]

smoothly

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tested, SAS and BQL determined the

square (0)

in dog treatment is MIXED) was Plasma The The state injection varies

contrast the

stabilizing average

defined Univariate liquid by was

PROC (below

which

The

comparisons, incision and intervals changing

time taken.

Box-Cox treatment HPLC for period

the

during

set

from

its skull nitrogen

by norepinephrine

its with

being of period is

contrasts to GLM quantitation of correctly

to Normal

HPLC

error statistically Tissue

pentobarbital transformation; using was

start

the was

missing. built statistics

was

day process, the the

transformations

was a

manual).

treatment of and performed. random and term,

at

day steady calculated opened using

electrochemical

to on theory

comparing samples takes steady the included,

stored

require

the day. and limit) as

on while

The first

significant.

electrochemical

into (NE),

state

factor. appears

p-value mean

(80 to treatment the means state

These

at

were

analysis hence time

in

the

Contrasts expose the for

account Biopsies since - mg/kg,iv).

the

period slopes the

indicated

70°C 76

was slope, dopamine error

comparisons For

each point weighed, might

was

transformations

of treatment DA

all detection.

the

However,

categorical

the

the was

calculated the

until

were also mean analyses

the

calculated. concentration

and dog were following

were

difference

be

detection. frontal

time fixed

performed that

error A

analyzed.

was placed the the

then (DA)

individually, square.

group

rapid taken

calculated used points

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the

since effects,

were

hypothesis case terms calculated. using variables

lobe

calculated,

the

This

compare on to bilateral between logarithm and to from

here,

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using of

following.

of maximum the

establish for iced the concentration the

slope

dog

the epinephrine

method

the drug using each being yielding

the Helmert

interaction of

0.4

a

transthoracotomy

the cerebral The each 1

with renal mixed

analysis was

slope slope at

group

particular M

steady

on

fixed the drug time

day

can slope

The

treatment perchloric

Normal the an transformation

artery one

of

equaling

model

CONTRAST of 10

cortex uses

fail

at and between (EPI)

was and steady

state appropriate the log-values.

during nepicastat was which slope

to contrast.

and placebo the the

used

analyte

theory (using are

detect

and mean set

were acid,

state

zero

dog dog and left per the the the

all as to a

2014202047 11 Apr 2014 NJ) the b.i.d.). nepicastat the respectively, in of Example inhibition DA/NE day concentration. animal. and levels days changes and state significant significant [0256] [0255] [0260] [0259] [0258] [0257] 10 13

plasma the

mg/kg/day post

drug to basis 7 DA/NE 60 7-9 at

of following and yield

Nepicastat Administration When The Thirty-two Chronic

approximately Dog

mg/kg/day).

dose. in

ratio. the on and

Dogs

16

DA of

for were

day decreases plasma

decreases

peak all doses

numbers

N-acetyl the ratio whereas day

(7.5

determining compared

(5

receiving 6, The days.

administered

enzyme These (14.5 4

mg/kg 12

respectively. decreases

were of treatment was NE male fold)

changes

post-dose.

in

5,

in metabolite

the 1-16

The

The 4,

were

days)

of

weighed

plasma changes

15,

significantly plasma and beagle

b.i.d.), dopamine

8

peak to 0

nepicastat

peak

were and initial

and

mg/kg/day whether

significantly in DA/NE groups the

in as administration

increases

6

NE plasma

plasma dogs, 30

free NE 30 levels

The assigned of days and reflect

placebo

dog

mg/kg

(2.1 β mg/kg nepicastat

(n=8 and base

-hydroxylase. ratio (2

the effects

put different weighing

post-dose,

were

weight

received NE

mg/kg, EPI 77 fold)

in inhibition

EPI

steady different per as equivalents. into per

(13.6 group,

(15 plasma

and

observed were dose on

of and and group):

capsule

were

capsules was mg/kg

from bid)

plasma

fold). 10-12

nepicastat EPI

empty respectively. state

group EPI nepicastat significant

significantly

from DA

of used detected

produced

placebo

were

nepicastat

(given

(1.91 b.i.d.), at kg, period

the

and NE,

A capsules (size placebo

2

to

were and days

observed

DA/NE sympatho-adrenal (2

fold)

DA

determine on b.i.d.

(2 increases

or on 13

significant was

dog mg/kg, The

different

randomly any post-dose.

at

mg/kg, 60 on and - all (placebo). and

to 0

Torpac;

numbers

changes a ratio mg/kg/day days of

mg/kg/day days

yield at EPI significant period

the

bid, in

the day

b

were from 4-9

plasma

plasma post-dose.

attained

assigned

days.

doses

i

East No

dose

in po)

17-32 6 and All

d) of

observed

plasma placebo system and

(30 significant

(placebo),

produced produced

Hanover, increases changing of

levels days doses for

DA

as steady

day mg/kg to 10,

dose each

The DA one and

11 via

on 30

of of 8, at ­ ­

2014202047 11 Apr 2014 plasma plasma AM were minutes. perchloric was vein, 4°C). homogenizing ice. Homogenates given dog animals group (pH supernatants 7.4 at sample and divided catecholamines cortex anesthetized from surgery. administered centrifuged conducted 8 [0261]

hr -70°C

at was following stored given

dose,

7.4

the The and shaved.

8-10 B. and

4°C) Ventricles

compound taken Membranes

into

compound studied

for weighed at jugular

Approximately

delivered

pellets 3

using (~80 The cerebral

hr

acid, at

32°C). The

use ml using

at 2

combined.

with

as

from

were later.

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the buffer

Dosing

terminal of 4°C

in mg/kg, scheduled. by per

[ vein pellets

3 were frozen

and were

pentobarbital dose H] levels. blood receptor

the a

cortex centrifuged

HPLC to levels.

Non-specific were day. Dogs

Polytron for and

CGP-12177 and

for skin

left the

consisted additional

washed

iv). homogenized the

The

surgery were

determination were

6 in

determination The

Two twice were stored

stored ventricle

necropsy were

regions binding using hr second

The combined The liquid Blood

obtained

P-10 dog after

or

at washed then by

Na

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in AM

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of

at left

3 at binding

500 electrochemical in

3

was

overlying studies.

50 resuspension of

ml

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(~40 tissue oral nitrogen room -70°C

days samples

rapidly tissue buffer

-20°C dose ventricle,

in

which

x mM

blood as

supernatants

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from

of AM

of immediately

g by

50

administration

mg/kg), scheduled

before

where was was

for

disrupter tissue

plasma

until harvest

containing Tris-HCl, mM administered

harvested,

until

dose, resuspension a were samples both

were

and

10

jugular administered renal defined

the

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given

cephalic,

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stored was

were

put on

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final first

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centrifugation

0.5

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50 weighed,

days

by of performed

into i.v.

centrifuged the

compound

mM and mM 3

at collected

Saturation

one

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for 10

saphenous in kidney, ml

as

in levels. AM 1-3. 10,

mM

tubes

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centrifugation put

2

dose, cephalic

supernatants

On

Na2EDTA

x tissue over isoproterenol.

PM

renal

containing for into at of administration at nitrogen

A

until

15

day

The

sample experiments

buffer in

and

48,000 and 500 pentobarbital

determination third with

dose

2

0.5 2

second

liquid

on medulla,

4, samples

dog ml

or days jugular at

analysis

x

mM prior

the

of the

buffer (pH transmural

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g was x

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bursts). days

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for

20 on 16 of of in at

2014202047 11 Apr 2014 bound times using bound, by mg/kg/day the yield the was mg/kg Analysis rate. way nepicastat-treated mean Membranes individual observed 60 administration 30 60 calculated dose at each gamma after determined 85%, [ [0262] 3 H]

each

minutes. mg/kg/day and final

10

1711%, used analysis-of-variance

CGP-12177

catecholamine for first respectively. doses for for a

mg/kg/day

Student-Neuman-Kuels

Dogs in non-specific 60 = Brandel globulin

dose

administration.

each

each

3 to of

in

a

t-tests converting for free). mg/kg/day

nepicastat

seconds.

by of were

determine particular Samples tissue were

were

the

1767%

parameter. all treatment significantly 10, liquid of

cell

as

ranging were assayed

nepicastat three groups

30 10 30,

orally

carried Individual

Dopamine

the

and measure bound

harvester.

Aquasol scintillation and significantly were mg/kg

by

total and and

tissue run any

doses

standard. group.

In plasma

with

(ANOVA)

administered 180%, for from

For 60

60

out the to filtered and

differences ligand (p<0.01) 1944%, group.

protein separately.

within

mg/kg/day mg/kg/day group. or

the

compare

levels

scintillation example, renal using saturation 0.016 and

total

Samples Tissue

273%

plasma compound placebo counting.

Receptor

(p<0.01)

concentrations over

with

Fisher's artery, were using the respectively, count Dunnetf decreased nM

0, catecholamine Additionally, and in

79

each

three

0.1%

context wee

for

should Pairwise factor nepicastat, 5, to binding (control)

significantly isotherms

the fluid

tubes

nepicastat

268%,

densities

increased 15, 2 4.5 Saturation

levels dose

LSD

s washed

times PEI Bio-Rad

nM.

test

DOSE norepinephrine

or was

days of be were

between level

to pre-treated respectively. analyses 30

treated tests

compared

a to were

the Samples

comparable

added dopamine

were were

one-way

free a with levels administered and mg/kg

the

control was

set

(p<0.01) protein binding

to level linear

were

performed dopamine/norepinephrine tissue

groups. up ligand a

room expressed, performed the to

between completed

were

factored

nepicastat were of

for GF/B

each

the

to ANOVA. binding vehicle

performed orthogonal

levels levels

isotherms

increased was compound

Doses temperature

to

eight analyzed concentrations

experiment-wise placebo.

incubated A at vial

the

glass

treated

harvested

nonparametric in

doses level

for per by

were

treated method

concentrations of for capsules and

compound 2

each 86%,

fiber

A mg were at

as 10,

by ways.

of

contrast present of

radioactivity each and significantly

paired

doses

at water

protein, validation.

comparing its

Following 30 10, group

tissue

and filtermats 6 81% analyzed 32°C

controls b.i.d.

hr (total partner and 30

tissue.

of

using

First,

at three t-test error level ratio

after one

was

and and and and

for 10, 60 10 as of to ­ -

2014202047 11 Apr 2014 Norepinephrine mg/kg/day mg/kg/day, mg/kg/day were between mg/kg/day mg/kg/day placebo increased obtained increased significantly dopamine/norepinephrine (p<0.01) suggest 69% levels significantly 30 significantly significantly 502% decreased significantly 85%, [0264] [0263] 10, 10,

30, 30, and

following

determined 58%

and were In and Statistical and

the

animals. each

60 on

the

by (p<0.01) increased

174%,

and

nepicastat, nepicastat 60 nepicastat. nepicastat, data 60

208%,

norepinephrine

(p<0.01) (p<0.01) (p<0.01) Day (p<0.01) mg/kg/day

(p<0.01) renal significantly

150%

dose mg/kg/day

mg/kg/day. 79%, 60

are levels

to compared mg/kg/day. No 4 analysis

by cortex,

respectively, not level

be and respectively and

632%

elevated increased significant increased and compared 86%,

were increased

norepinephrine increased linear): linear,

Dopamine

156%, and tissue nepicastat. nepicastat,

ratio compared

In 612%

(p<0.01)

indicated 66% was not

to and

the

factored

with

by

placebo. respectively, by by and

significantly was

to in 522% and renal significantly

changes at following 852%, 411%, 86%,

placebo, 555%, the levels 1653%,

the

these

plasma to 85%,

compared decreased

significantly

that

levels

medulla,

levels left 80 placebo, while following at

279% were

respectively

were

636% 30 Following

respectively, ventricle. doses.

the

1440%

administration

and

obtained of

at (p>0.01) were dopamine mg/kg/day

(p<0.01)

observed

the its

concentration significantly norepinephrine 10 and marginally to

72% and

exceptions

partner and dopamine/norepinephrine (p<0.01) and significantly The

placebo.

677%,

The 607%,

administration on affected

following

in following 1693%, levels reduced 60

dopamine/norepinephrine

in

and dopamine/norepinephrine

Day

dose.

of the mg/kg/day.

dopamine (0.05

respectively,

(a increased

(p<0.01)

marginally

marginally 60

of

5

at

levels Dopamine respectively, cerebral

significant

(p<0.01) by

was Therefore, mg/kg/day doses administration these nepicastat

63% of

were levels

dose-proportional

increased

of 2 531%

Norepinephrine

10,

at

(0.05

doses. and

decreased 10,

compared decreased

result

significantly levels doses

dose 30 at ratios at nepicastat.

in

30

the

after doses doses

and

plasma

and

would of 156%, points

At of

were were ratio ratio ratio

The

10, by by 60 60 30 10 10 of of to

2014202047 11 Apr 2014 plasma. mM membrane. Waddell, octopamine MO). Example hydroxylase, Example as stored activities 50 0.5 column cell dopamine-3-hydroxylase. enzymes cyclooxygenase-I. cholesterol endopeptidase, [0267] [0266] [0265] [0270] [0269] [0268] 10

substrates. mg/kg/day mM

M

line KH

Human

NaCl. at

Nepicastat An Bovine The On KH

containing 2

SK-N-SH -25°C. PO4, 18 17 were studied,

W.H.

Plasma Kidney Kidney HPLC

Day

2 results acyl

by PO4,

Methyl

The

secretory nepicastat pH

The DBH NO

reverse Ca

pooled 5,

transferase, (1982).

pH

column

6.5, assay

was

2+ (day medulla: medulla: levels 25 demonstrated and As and

method

/calmodulin

a, from 6.5,

synthase,

ml

0.1

shown

evaluated D-mannopyranoside

phase DBH 4): was

was and therefore

treated

gel

of 0.5

was M adrenal

Anal.

is

nepicastat

used used

was concentrated NaCl.

M was

in HMG-CoA HPLC

eluted based

group NaCl

Figure

phosphodiesterase no 2 6X10 3

prepared for protein

to to purified

Biochem: glands it

X X

The difference

measure obtain

its with

on chromatography

is

10 30 at

and

in

81 4,

activity

<60 < the 0.5

a concentrated >

was

kinase

all

nepicastat 35

reductase, vehicle 30 from with and

60 highly

the

was ml/min.

separation

tissues

ml

DBH (p=0.077) (p<0.05) obtained (p=0.076)

A equilibrated between

inhibition

the at an of

removed II,

time-resolved treated a

selective

10% activity

culture

Amicon

range examined had acetyl Fraction

protein III, enzyme (Feilchenfeld,

from

and left methyl

an

group.

data. by

of

with medium

phospholipase

using

CoA IC50 quantitation ventricular

Sigma

stirred (> buffer enzymes

kinase

containing solution

were

a,

50 A

of

1000-fold) assay

tyramine synthetase,

D-mannopyranoside

lentil

mM

Chemicals

>

of

exchange higher N.B., cell

(non-selective) 10

the

including was

samples

of KH

of lectin-sepharose μΜ most using

neuroblastoma

Richter,

and aliquoted 2 dopamine tyramine than A

PO4,

inhibitor at

2 acyl

with (St.

enzymatic ,

all ascorbate

a from

those tyrosine

pH

neutral

YM30 Louis, the

CoA- H. in

6.5, and and and

the

50 12 of β- in in &

2014202047 11 Apr 2014 were tyramine were tyramine. performed resuspended used without was UV hydroxylase incubated KH2PO4 KH2PO4, MeOH, of The solution 0.1 0.5-2.0 The The column Cf dose acidic for μΜ [ [0272] [0271] 10% 14

C]tyramine

8 1

mM each

detection used

ml/min samples

CUSO4, assay light response reaction to methanol. incubated

added

acid,

Enzyme Purification

was

μΜ inhibitor, 2 tyramine, wash

containing reaction) containing

and

for pH

at

load ml in The

was

using washed CuSC>4, 10

37°C in

to

integration activity

(150

200 4 2.3.

ascorbate at of curve

as was

and

H

mM column

total the mM 280 at Assay performed

2

50

ml substrate

The O,

corrected a was for μΐ)

and

A 37°C

elute

of

reaction LiChroCART initiated 25 30% to

with 0.1 nm. 1 mM

counts and volume

ascorbic utilizating vacuum -heptanesulfonic 30 were

remaining

obtain 4 [ mixed

by mM was (two

14

mg/ml

and

mM minutes. stored for the C]-Tyramine. acetonitrile. 6 PC- KH2PO4,

Radioactive

ml

and

loaded at using

of added

data EDTA

30-40 columns mixture containing

1000 column the ascorbate. by

with manifold

of pH acid,

each catalase

at a

high-pressure

50 IC50 analysis.

the percent

internal -20°C.

C18

125-4 to to 5.2 software The

tyramine

pH minutes. and reaction mM

O.f

initiate a

and values. by

combined addition

The acid,

and

column reaction

Gilson 82 (6,500

Method. 2.3, (Speed

100

240 RP-18 [ In mg/ml KH2PO4,

vacuum. 14 standards activity

then

The C]Tyramine

eluate

37°C a

(Thermo

mM 30% 12 the and

was μΜ typical

u, The

autosampler

liquid

mM HPLC

to Mate

column of was a

reaction into

catalase Boeringer

NaAc, inhibitor

-150,000

3-hydroxytyramine was

in acetonitrile, Enzymatic

substrate separate pH was reactions ascorbate/catalase

After tetrabutylammonium and

stopped

assay, 0.125 Separations one) 30,

chromatography. run 2.3 lyophilized

and calculated hydrochloride pH

fitted

(final from

and and was

in that

loading

Mannheim, and the M 0.5-1.0 5.2, cpm. isocratic mixture

by were the

activity

eluted

to

various and carried NaAc,

Applied was volume

product. analyzed the

10

reaction a products,

to Bovine

quenched nonlinear based then of mM milli-units

addition washed

with containing

remove elution

(internal

was out

[

mixture was 10

200 concentrations 14 Indianapolis,

Separations) fumaric 4

C]tyramine,

by

122:

buffer

phosphate, The 2 on at mM

DBH ml

assayed

Fremont,

purified ml

μΐ).

with the

of

HPLC with 4

acetonitrile, by

the

of

of assay 124-128.).

of parameter standard).

100 fumarate,

and flow acid, catalase, (0.18

Samples at the

enzyme 2 50 50 control 10

37°C. ml using using ml

by

CA) mM mM mM stop IN), was was was rate and

0.5 the

ng of of of a

2014202047 11 Apr 2014 to more more by that mM bovine value. background, without KH 25 4.7 inhibition human identical at counted scintillation 50 column Compound dependent calculated 8 [0273] [0277] [0276] [0275] [0274]

nM)

be the

mM mM 3-fold 2

± PO the tyramine,

competitive potent

0.4 potent

caused following

Nepicastat Nepicastat DBH. A

The The 4 DBH

EDTA, (two S , for KH2PO4, the

in

nM Km

of enantiomer pH against inhibition from

B

IC50 IC50 14

each than

enzyme bovine fluid

combined were converted C than was

(the a of 2.3 4

radioactivity. major

50 the

values values mM

0.6

SKF-102698.

tyramine with

reaction

bovine

calculated

was pH concentrations R (16 obtained buffer mM SKF-102698

DBH

slopes mM

of enantiomer). was

ascorbate

(nepicastat) shift 2.3. tyramine, a

ml)

DBH caclucated for into

KH2PO4, to potent

was DBH

used by

twice,

which in and SKF-102698, concentrations: activity

was Elution

using one)

by nepicastat

activity Km, determined

inhibitor

at to Y

nepicastat linear and

with

added

by

of

that pH was followed pH

was intercepts the obtain as

for The

in 0, into 2-fold)

8-fold

on would

2.3. a

5.2

regression. was

nepicastat, HPLC carried

1,

more

nmol/min, Ki 83 inhibition appears

to

both of

2, scintillation

nepicastat and the

from

of (the

pre-washed

Entire

the both

4,

by against against be 0.5,

potent

and

4.7

bovine

assay background. 37°C.

8

out

S

predicted the scintillation

to nM 2

human

±

enantiomer)

linear mixture 1,

Compound of

be ml and as 0.4

Lineweaver-Burk

than at were and the 2, bovine

bovine and All

competitive

vials

described

the nM. of with

3, plotted

regression and

human Compound

the

three

human

for

used

the was 4 substrate

was

bovine

MeOH The vials DBH enzyme, mM. R

a

B is

same compounds to competitive loaded

enantiomer

(1/V 2-3 enzyme. and

above. carried enzyme.

data

study

with

and by

was

DBH.

The fold and concentrations B

SKF-102698

buffer.

plot. vs

nepicastat

to and were

against

tyramine. the

inhibition

used

out equilibrated more 14 A a

1/S).

Nepicastat

C

It

caused C18 inhibitor. 9-fold

(Compound Nepicastat samples

blank

corrected with was to counts

potent human ReadySafe

light obtain Km'

appeared

8-9-fold

kinetics A showed 1 a control against

of

ml dose Ki

were were

with than load was was The

and

0.1 for (1

Ki

of of B ­ ­

2014202047 11 Apr 2014 parameter this proposed reconstituted vehicle benzyl of Example of of instead individual of Example equation. standard dosing, gavage administered aqueous formulations affinity [0279] [0278] [0284] [0283] [0282] [0281] [0280]

the toxicity Ki)

approximately report).

study.

of alcohol, Nepicastat A At Dose Competition The Clinical to of mice with at

radioligand

vehicle 20

19

clinical

each competing all single the 1.5 logistic and body

affinity

Food

nepicastat in other single were hours nepicastat selection time

death

mouse and

each observations

weights

oral and route

equation. and had receptors

of

10 prepared

polysorbate as oral

of

filtration occurred binding treatment

ligands

dosing, using

nepicastat

dose specified

water

minutes nepicastat moderate of

powder, was

doses formulations recorded

administration.

a of

examined were

Hill by

were based were rodent a data binding

at

of

group

vehicle 60-mg/ml

80. in

each 1000 followed diluting

formulations 250, affinity

coefficients

was

withheld the before recorded calculated were

on

intubator.

were

methods and

protocol. was for retained 1000, determined

84 or

an

analyzed

the nepicastat

for dosing 2500 by

Dose

evaluated

relatively clinical nepicastat

from

acute before

or

shaking.

60-mg/ml and alphai

from

were

contained The mg/kg. 2500 potency This volumes the

(body

IC50 in

toxicity

by

IC50 observations

dosing. oral

used.

formulation

mice in low

receptors deviation mg/kg the

formulation

were

iterative

groups

The

weight route

formulation values

for (pKi were bindings hydroxypropylmethylcellulose, 2.5

study

of 6- obtained Beginning

the

was to

<

of

did nepicastat. calculated

and (pKi

data

using

6.2). 3.5 was curve

up duration

and

selected not in

assays was

20-mg/ml

hours

to

are of

prepared

with directly.

which the

affect protocol-specified

3 fitting

6.9 60

administered not over

on Cheng-Prusoff outlined

before vehicle. because

of Clinical minutes

-

the tabulated

the

mice

Nepicastat 6.7). an use. by to pKi

integrity

basis

interval dosing, mixing

a

using it signs were (-log after four

The The The

is

by of in

a

2014202047 11 Apr 2014 were behavioral by between present. test observation # Example incidental 30, euthanatized died cages, Charles central Changes and each soft/continuous abnormal Clinical/behavioral changes compared [0286] [0285] [0289] [0288] [0287] 100-mg/kg

RXXCM

12"

100, data

nepicastat initiated in after

and high. nervous Adult Lower Mice The The

Rivers were or the were 0900

21 in Abnormal

with and

food tests.

gait 300

group, dosing

period, locomotor purpose 16)

these

30- and in

Surrounding

male

present. the 60 obtained. Hrs. body

the mg/kg groups system. Labs. vocalization;

produced and

which

and

removed One and

minutes

mice

behaviors but

vehicle-control

Sprague all and and

water changes

social temperatures of

mouse posture,

100-mg/kg of

surviving

not of activity Rats

were

Rectal this consisted 2100 they

nepicastat

6

No

were the after from changes

grouping the

males

were

Dawley study

removed

these in

in may treatment-related Hrs.

Plexiglas®

were body

300-mg/kg

boxes

allowed administration the the decreased mice 1

each housed

group were of

was group. therefore mouse changes

study Animals 30-mg/kg

in by

temperature (listed

removed

rats

a

consisted were from

gavage. locomotor were

to 85

one present ad

boxes

died

at (250-350

under No

determine

group;

in

libitum.

as

euthanatized the induced were the

administered inch were reflect

group the

other treatment-related

after

of

from were

study. clinical

end of Clinical

in a

data

not

the this

ban housed normal activity 100-mg/kg a the

g

of

reaction)

and dosing;

Plexiglas® activity

Omnitech

attributed the activity, if

test on

are

the finding

of

30-, or

the

observations and 1

study

and

formulation. study. observation/testing single photobeams in mouse light/dark gross

or

DBH

100-,

the removed pairs of

occurred

observation

was group acoustic

Digiscan

abnormal day to

box

clinical these behavioral oral

deaths

in

nepicastat. inhibitors and

in

Surviving considered

)

the measuring

cycle doses were standard

included and

from

compounds among 300-mg/kg

and At or

startle 100-mg/kg were Monitors

behavioral

passivity, and

gross

with the obtained

of the

changes photosensors

SKF-

period.

One 0

mice mice

metal considered behavioral incidental. end

study. reactivity. inactivity,

18"

(vehicle), lights behavior

102698 (model

groups

mouse

in of group

in

x

were were from tests wire

and

18" the the the on

2014202047 11 Apr 2014 time numbering minute treatment next. response to mg/kg), water/50% treatment treatment noise piezoelectric in Instruments, Digiscan of hours. individually on attenuating a another startles calculated apparatus, after [0290] [0292] [0291]

white

this be a a

scale

a

of Plexiglas®

burst

the

five

fifteen Acoustic Next, Each Prior for

noise

will injection and

1

Analyzer between

groups) of

groups groups

for

four most msec) and 32 minute enclosure.

polyethylene every

be their

in 0 San to day the accelerometer

generator

minutes per each

to

hours. after

a disregarded).

drug

rats appropriate

4095. cylinder startle Diego,

after vehicle, of was was motor 20

box.

rats, were such acclimation (model rat

40 a were seconds

administration,

injected

the Acoustic presented this by

but 5 running

The

that

pg/kg.

reactivity as CA) activity

minute

glycol),

taking dH

rat # (10 placed

a testing

transforms follows:

number

DCM-8).

high 2 each for

that for automated O.

Sixty-four with period

cm to noise

Next,

the box. adaption via

startle 15 in

Previous

mask

clonidine has degree procedure, group tests

diameter)

their

of a

minutes mean

each

a

they bursts transfer

been

the

SKF-102698 The photobeam

the 86

The speaker extraneous

were test

assigned since of

of

had

were rats period of

work of

subject's animals

assigned

rats these (40 consistency (a

stations.

(45

seventy-two startle

which cage eight

conducted similar were there broad

presented

mounted has

motor pg/kg),

startles

drug they

rats breaks

noise.

for were

rats

movement (100 number placed

the

shown is band is

The

mean were treatment fifteen

were

activity

significant

housed (one within clonidine

tested

total). nepicastat

were mg/kg) with 30 in

rats noise

rats

that

in

then

presented 11

eight startle cm rat minutes.

the

a was analyzed

in

were

into rats

through was this

The with

in 90 and

from placed

above

an and

treatment

startle

SR-Lab variability

placed dB

a from (3,

an matching values. enclosed immediately

monitored placed

average

a

ventilated

its each noise with rise

At arbitrary

10, by 45 the

in

apparatus, one

vehicle the

in

time an

one (the 30 individually of (San will

an animal. burst

startle

room the day The beginning procedure

Omnitech

in

the

and

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voltage

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placed

Diego startle startle

to

every (50%

eight eight eight

with

four

was

and 100 fall the ten A ­

2014202047 11 Apr 2014 treatment number procedure response baseline using means time=2, investigators, each control (ANOVA) separately. at clonidine-treated at significantly any controls, stated analyzed average The (TRIALN), (MAXMEAN and [0294] [0293] [0296] [0295]

1 2

of hour

the plots startle

hours,

analysis

above. the

were When When To To

were

trials

of startle maximum

startle there

(p was

by

effect

in 3 are

evaluate

was evaluate

the movements,

< parameters. and

and At

order more then also

time.

but

0.05). 121-180 compared a the The and

were attached of

responses average response, performed

covariate. each blocked then

significantly

performed group not covariance.

used

AVGMEAN) four to horizontal varying

force, no motor startle

The control time these time

to

overall

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to by and

time=3

and

model was

effects

were using

the the activity, doses reactivity, interval

There values the

using day. significantly

for

exerted

rest activities

treatment. Treatment no less computed report. statistical

vehicle-treated

multiple

measured. were the

included and of within pairwise

Pairwise time were Dunnetf

were rest

(or horizontal nepicastat ranked

by

trials computed

for

at Trials 87

were

three called

time each treatments.

plotted

comparisons. analysis.

more comparisons within Date 2

the

groups

significant s

terms

comparisons 181-240

and data t-test.

The

startled measured. at

separate

200

1-60 were sample), was activity rest

controls,

2.5

for against 2 each (nonparametric

mean for

were

milliseconds hours

time

were a hours, The each to

compared Therefore,

rat blocking the

differences

time

within models time=4.

(number

maximum compared trial a

over for

than startle the treatment

set (all

day Each

two-way significantly

and

treated

clonidine-treated

number to

the time the

p

the

to for

factor

the

responses

for The parameter time=l, technique) <

immediately of

at entire vehicle-treated vehicle

each were rat

to

(TREAT) 0.05).

startle and photobeams any

groups each analysis mean

and for the was

200

more time

average of

of

trials

treatment.

using each responses

baseline

vehicle-treated were

maximum

the Note was interest to to tested milliseconds,

examined

at of movements

the

succeeding

test group

objectives treatment. 61-120

Dunnetf

each

analyzed

analyzed variance broken), voltages

controls that

vehicle

for

(date), startle

to

were

trial

The

had and the the the

to in

s

2014202047 11 Apr 2014 movements maximum responses times than test not vehicle-treated treated had <0.10). or first examined (both 3 0.0352). at average first significant significant [0298] [0297] [0303] [0302] [0301] [0300] [0299] 102698

for

any rest

significant revealed

significantly 2 2

the the

1 hours time hours p

time.

Nepicastat Nepicastat with In When In Clonidine SKF-102698

and

startle behaved clonidine <

The vehicle

in

startle than general,

or

at

for differences

0.05). 2 than 3, and the and

that

average

maximum times

for

compared

either (p>0.05) 10, controls response vehicle

rest

remained

stayed

response, less

the maximum nepicastat

group

similarly had had administered 30 group the

3 time. Note

(100

startle startle vehicle-treated or horizontal

and

no

horizontal

statistically at

at between low

at startle 100 at were (p<0.05). to

mg/kg)

time any

elevated significant

that 4

any

the

time

response

the response for to 30 startle mg/kg for

time marginally

response time

overall mg/kg vehicle the the 1

vehicle-treated at

both 2 activities

SKF-102698 was (p

activity

3,

was

response, for examined last

of

significantly SKF-102698-treated

for

Baseline

< measurement.

in controls

10, effects

responses

not nepicastat had the

treatment 0.01)

2 88 marginally

rats (PEG) either

at

hours. 30,

significantly statistically

last and and time a

at

significantly

and on

and or

in

2 response. at any average

significantly number

and

for 2 controls, the hours.

100 the

(p< were Similarly,

at effects 1.5 at and

lower

time

significant

time horizontal both

vehicle time locomotor mg/kg 0.05),

and

the significantly not lower

startle

when of

2 for

maximum

The the 2 startle average higher group

4 significantly

movements

for

the

and

does for less

hours

nepicastat were than

compared

SKF-102698-treated overall

activity, average

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2014202047 11 Apr 2014 noise times, temperature running. body between ml/kg randomly mean morning Example of hours. and apparatus and Clonidine administration groups groups so day, dH for for SKF-102698, [0304] [0307] [0306] [0305] 12

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2014202047 11 Apr 2014 performed treatment treatment using within using trials value] by trial multiple hour. over inhibition Differences (nonparametric each - and adjustment adjustment displaying and startle (RATIO) groups. [0315] [0314] [0318] [0317] [0316]

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2014202047 11 Apr 2014 vehicle prepulse body pre-dose b.i.d.) b.i.d.) than nepicastat mg/kg of startle significantly different each from (50 significantly amphetamine controls groups cyclodextrin, for cyclodextrin for [0325] [0324] [0328] [0327] [0326] 102698

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2014202047 11 Apr 2014 was pm), received mg/kg base-line using period recording was mg/kg mg/kg/day treatment monkey mg/kg) MPTP MPTP Parkinsonian Both at administration lesioning. consecutive spontaneous drug Group administration [0333] [0336] [0335] [0334]

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2014202047 11 Apr 2014 parkinsonian behavioral total period monitored. treatment minimum treatment. obtained hour immediately on study. sufficient days. sessions lesioning following 5 am different CRS. (at administered Testing for conducted [0337] [0340] [0339] [0338]

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32

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32 on to at

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32

nepicastat nepicastat

on be

all the

treatment to

in

a

by was

memory

the

some

s

relative

vehicle

control able

ceiling day

choice impair during in choice choice delays in

acting delay,

drug-

other other trials task.

five

this and not

the

no 11 of to

2014202047 11 Apr 2014 the variability variability trials treated treated which training nepicastat, the Although were block independent: complete longer The secondary significance. correct administration This animals extra cases consistent groups deprived [0423] [0422] 10.0

animals

chronic

animals

mg/kg

separated

observation in feeding completed

of was

reached with Physostigmine We showed animals.

choices in during

excess

animals, training. fewer

systematic

performance

to in in the apparent

the

found treated of

30.0

oral the appeared the behaviorally the

Thus,

may

of

30 nepicastat statistical

reductions and which trials impairment of

during

interaction

data mg/kg. This

data, were 100

dosing mg/kg that

particularly

5% is with

given have on The

the

recordings than

mg/kg

was

the did consistent effect

some however, to the of across observed

Block

physostigmine

effects

significance. group animals

There

took

regime contributed

develop total not additional

the impairments in unexpected. toxic fourth

term

in p.o. was of the

vehicle improve

the

during longer

3

body

than choice was the

of

effects were

number of

these

from not block of

next recovered may during with

tolerance

physostigmine

nepicastat

animals

also

in training. food

weight.

dose-dependent treated

the

to

to

not

the three

performance trends

116 accuracy have the in showed of

of It the

completed

of a the

the

first

at analysis appears made, training, choice

trend the

other

trials

blocks

in the to results from

animals: disrupted variability

last did induced Animals

drug few

this these In

a

end for

groups

casual induced completed

accuracy significant

not

two

on likely this of

contrast

of blocks

during study the the when of

of of

variance

effects reach training. and response

a

the trends

initial blocks which

their

animals the

32

marked observation a had that in

began was by it

rats which

of

s

induced pilot to

number

performance

statistical

between is

impairment

delay to

daily

over the the

for

physostigmine

decline did were

in the not of administered

accuracy be

treated loss

to reductions initial the the

experiment.

study

not

the training. training

observed given trials

effects

lose by

showing of of

suggested animals DMTP the

approach significance.

last and

physostigmine body with

stress trials

weight, in than in first additional are

of

two obtained showed session.

percentage

in

which

nepicastat test.

in at

weight.

treated these likely Due weight was and induced the

completed.

number All

that the this blocks statistical

in

vehicle In

second

to

delay

of

group

food- to some more dose. food. more

daily

with with

This This fact, loss

the the

by no be of of of to ­

2014202047 11 Apr 2014 may the to with the present unlikely, unexpected the task. the nepicastat treatment unequivocally test treated be of induced administration effective due and “ scopolamine able day during scopolamine appear after [0424] [0425] non-cognitive

scopolamine compare

employed

scopolamine cognitive fact nepicastat

MK-801,

to to 11 showed physostigmine be 8

However,

Block

to Nepicastat Finally,

perform with

impairments in days that, required

results

that against dose- reverse

days or which

with

finding

30.0

treated

physostigmine compared for 3 changes disruption of higher

induce

treated

whether ”

and

of and

of physostigmine in

the

and with

test. two

the scopolamine. actions dosing. chronic

the to

mg/kg the testing this a appears

physostigmine actually

given

DMTP

using

higher

animals. reverse

present

delay-independent effects rats in delay-dependent choice

animals It in test. nepicastat.

groups.

acute

with

is induced attention

attention of of

(Days administration. receiving that

the

to Physostigmine possible

task dose

produced nepicastat

the could of

the results.

acute have or accuracy

present

It

many did were scopolamine

We

5 is displayed

chronic compound. effects

of

by

&

or Further not and/or possible not

specific

treated

administration, have that

physostigmine If 30.0

other scopolamine, 6). co-administered motor/motivation

This

dosing

a

appear be that

this

117

impairments

delay-independent than a impairments of treatment The

not mg/kg

analyzed

different motor/motivational The memory

a did lack

groups memory-disrupting that were scopolamine.

research

drug

although higher previously

results regime any to

On animals

not

of nepicastat

reverse of

able

the is

effect an that of

with

due a dose nepicastat disrupting improve (see

choice

from

and

lower

in in selective effect it scopolamine would to the

final

performance would

to

were

is

choice nepicastat attempted the

results

of perform of therefore

choice

a the

interesting is In animals impairment

accuracy

physostigmine

scopolamine dose

physostigmine effects

that block

capable performance

able

addition, small not drugs, be and

factors.

accuracy effects

of for

may

of accuracy.

during

have

to to needed

scopolamine the have can of

of

HBr

number physostigmine in

a

could than

such of reverse

that

perform be

scopolamine training,

which pilot novel

in reverse nepicastat

any

tolerated reversing

no In that

masked (0.1 challenge

the

any choice the

as

may

account

on

may

historical

to contrast,

of

of study)

scopolamine scopolamine scopolamine are

are two

mg/kg) receptor of This

any the

subjects the

have nepicastat determine the

be that

the probably accuracy

apparent repeated by

some animals

did

DMTP

test effects for during had of due which

is

other other other

were been

it

data

and not

the the

on an of or to to in is

2014202047 11 Apr 2014 working pharmacological matched hydroxylase Example administration strain sequentially: examined. enalapril. SHRs. [0426] [0427] Series Series Series

of

Recently Male The

memory. rats. 30 WKY/NCrI

III II I Vehicle nepicastat nepicastat Vehicle nepicastat nepicastat Vehicle Enalapril Enalapril

Effects

antihypertensive inhibitor,

SHRs/NCrl

Furthermore, of

mechanism, we

the of

BR

have exhibited the compound

10 3 10 100 30 10

BR

rats mg/kg

treatments

mg/kg mg/kg mg/kg mg/kg

we

demonstrated mg/kg effects

these

rats were

also an

(22-28

results with

effective

of used. explored

on 118 nepicastat

the

weeks

the suggest that Four

antihypertensive

angiotensin the cardiac

old

nepicastat, were series possible

an

at

important

hypertrophy examined

the of

potentiation converting experiments onset

a activity

role selective

chronically of

in dosing), for

in

enzyme effects SHRs

were this acute dopamine

substrate in

and

conducted were of studies

the inhibitor

the weight

same

also co

β- in in ­

2014202047 11 Apr 2014 telemetry ventricles received After mean recover measurement obtain into off.) housed sutured and aseptic anesthetized [0431] [0430] [0429] [0428]

Series cannulated 4

the blood

dry

groups

At In Twenty-four Three conditions, individually for to

a

predose

monitoring IV each were weights. 30 the

nepicastat nepicastat nepicastat nepicastat nepicastat Enalapril Enalapril the at

pressure with

day

days least

of and

start

abdominal with series, collected,

arterial daily pentobarbital values

their an

2 prior

of

the

in

hrs

weeks

(MBP),

was incision

24

treatment

each a

catheter

systolic 60 30 15 1 30 30 1

to after for

quiet

blood SHRs mg/kg mg/kg musculature, always weighted

mg/kg

mg/kg mg/kg mg/kg mg/kg the before

these

experiment,

heart

was the

room

sodium

start

pressure, of

were

blood of

(El)

6. parameters

being last made a + rate + + + nepicastat

(wet telemetry

of enalapril with El El El In chronically

119

treatment, pressure (60

(HR), the the

Series subjected

on the

weight), heart reversed

mg/kg, experiment, skin midline.

number

were

and/or and 1

transmitter

I,

mg/kg

rate (SBP),

was however,

implanted

the motor to

and i.p.) established, light/dark

enalapril

and

drug The of closed. rats

lyophilized and diastolic the

rats

activity

unit. motor

abdominal administration.

were

7 its rats

with

in Wistar (see

cycle

Each abdomen After respective

each were

activity. sacrificed blood (MA) telemetry

below).

for

(08:00-20:00,

rat

Kyoto the aorta

group randomly

at

were pressure

was

transmitter shaved.

least groups The

was

The

implants and (WKY)

undergoing monitored. allowed

rats

exposed, 24

rat the divided

(DBP),

of Under

lights

hr were

was was

rats rats left

for to to

2014202047 11 Apr 2014 was to were was weight/body weights procedure. performed. the weights instrumentation Bonferron Wallis interaction 26 additional Then control and as These for SBP, [0433] [0432] [0437] [0436] [0435] [0434]

the a

time

end

p time obtained used statistical

DBP,

a similarly level rat

were

A test All Both For For Data would

one-way of were points was

in

and to computerized

’ the

2

s values

body left of was was

MBP,

If

then

rats 10 adjustment The on analyze nepicastat

weights. used

commercially recorded

treatment, no their be less

measured

ml/kg

ventricular analysis housed

MBP, or

used

in detected, ANOVA pairwise performed averaged weight

overall

HR, were than to monitoring

each interaction

overall

analyze

to and

HR

daily. and

If

and 0.05.

to and

expressed

data

group left analyze treatment a on each

an

were

comparisons was multiple

and a mass, hourly two-way

MA.

enalapril

from

by

dosed ventricular effects overall

series collection effects

tissue

was

thy.

MA performed were was adjusting

expressed

a Data ratios an

and

as

conducted local

effect A

with comparisons

were

of

used.

for analysis

ANOVA treatment wet similarly were

means

on

standard on two-way

one-way 120

of

at treatment, mass system

pharmacy.

vehicle the weights

analyzed

was

each the

for as prepared each tissue If

± critical

free

of

on (dry

each an

treated detected,

with SEM. effect hypertrophy rat

was

errors time

covariance

ANOVA

was these

ANOVA overall (water), wet base

and

were

and day,

separately. day,

respect in value

used

then

point among

(to

weight/body

Statistical tissue of water. rats. wet equivalents.

then and collected

and

treatment

the increase

to made. with while using

weights)

were at

with to

treatment pairwise

of continuously dry the mean all

All each Each the

main

a groups significance pairwise SHRs). performed a in

weights,

every

doses the Bonferroni

changes

covariate

(SEM) weight

effect

time Series were Enalapril analysis

effects comparisons numbers

by

was 5 were

point

obtained. min.

day

difference or

while collect calculated. III and No from

using

of for

not

was a

was

adjustment. given (Vasotec®)

interaction.

and

for of significant final

tissue would

treatment telemetry

detected, Kruskal- pre-dose

done animals

data

defined Dunn

10 for

IV orally

Body body from

sec.

dry the At on on be an ’ s

2014202047 11 Apr 2014 those nepicastat was most nepicastat maximal throughout nadir mmHg Fisher With 21 on study. little day expressed drug-treated day antihypertensive low (15, dose administration 8 [0438] [0442] [0441] [0440] [0439] 1

through and

day mmHg

treatment studies. observed average

30

recovery

of of

a

induced

’ continued of

s

Nepicastat 5. For In In Enalapril second 21

At and the enalapril LSD

decrease

approximately day series

at hereafter hr series

at at the

series

100

day

60

60

The mean groups hr after

strategy throughout

by 30 (data

within 30. of

administration study.

mg/kg). mg/kg

with mg/kg,

16

responses to IV,

the the

III, groups

at was I

mg/kg at

of

dosing

Thus,

blood and

on lower not

are

3 two 10 potentiation compound to 24 combined -29

although

to

studied day and initially

II, shown).

po)

the the hr.

mg/kg,

adjust treated

the the

mmHg The compounds (n=6) -42 on pressure the

Oral than

10

1,

did compound Similar vehicle

potentiation study.

day

p<0.01). on MBP group mg/kg, mmHg

further.

produced for

treatment mono-administration the administration

at with not induced

consistently At day (p<0.01) 1 of

multiple

15

with (p<0.0 rest).

to 30

antihypertensive significantly

that

the

controls

2, nepicastat (n=6)

or did

a on

121 mg/kg,

induced In The a

30 maximal a

a effects received

was

only not greater

(-25 1).

in large the day

greater induced comparisons. mg/kg,

onset

MBP

consistently

MBP

not lowered

were presence mmHg of nepicastat a

3 at

standard of a

antihypertensive

nepicastat affect small

related of

nepicastat and of (p<0.01). 100 peak was

no

nepicastat continued a made

-20

the effects

greater of

at greater longer

mg/kg,

MBP

observed

blood

of antihypertensive antihypertensive

hr

response mmHg enalapril to

gradually

error affect

using

enalapril

13,

the at

were

antihypertensive

15

antihypertensive

throughout effect

to however,

by pressure The

3

p<0.01).

(two doses

heart

mg/kg on decrease and

within

Dunn

induced a response

was

at

lowered

MBP

was non-antihypertensive day

(1

rats

10 of rate

1

slow ’

mg/kg), and on

s tended mg/kg 1 3 mg/kg nepicastat The observed

showed

response effect, the and procedure

hr throughout (HR) remained (p<0.01),

any

was

El MBP

and

potentiation after

response reached effect study.

to (all of exhibited

observed

in (n=6) although gradual.

the

exhibit greater on on dosing the

the tested doses

of-29

with

than

low day and day

co the 30 30 its or A ( ­ ­

2014202047 11 Apr 2014 treatments, Although nepicastat nepicastat the but motor mg/kg) induce of II, enalapril lower (30 slightly (p<0.05). and left decreased effect consistently SHRs [0443] [0448] [0447] [0446] [0445] [0444]

co-administration but

ventricular compound and the 10

(p>0.05).

activity on HR not

mg/kg Nepicastat In Throughout The The Compared a co-administration and 60 decreased

(1

transient

the enalapril comparison, the

at at in

mg/kg) than

mg/kg)

enalapril affected pre-dose pre-dose i.e., 30 3

Series

body did left (MA). and at mass

and

the Enalapril

30

not

enalapril ventricular

to

at small body slightly

10

alone. at the

I.

weights 100

vehicle were of that and

HR.

3 have (1 mg/kg

1 body body

In

enalapril study,

enalapril -

mg/kg mg/kg

weight, mg/kg) tachycardia

treated

100 100 Series not of

(10 In increased any

(1

were control

of enalapril weights weights

Series mass

mg/kg, different mg/kg none mg/kg)

were effect

did

the

mg/kg), III, tended at with co-administration (1

387±1

of

not 10

mg/kg) of

IV, rat.

enalapril

the 399±10, group,

within

did

on

however,

vehicle, the

significantly of of

(1 the mg/kg

from 122

affect

the to

body

body

1,

mg/kg) not Although

nepicastat the the SHRs

drug

exhibit 415±12,

and groups 2 at enalapril

389±6, affect

at weights significantly

weights HR, rats rats hr treatment

least

induced treatments nepicastat 1 (p<0.01).

after and

mg/kg

lower

reduced the

treated of treated treated

407±4, treatment the

in

389±9, (30

alone

nepicastat

of enalapril in

dosing.

compound

the

cardiac greater

of

the SHRs did HR

mg/kg)

with at showed

In decreased the and with with (p>0.05). left

first

rat. and

not

than 15,

Series

with

SHRs ventricular 415±12 (p>0.05). In

(1 nepicastat increases

hypertrophy (30 401±10 regress few 30 vehicle, vehicle,

at the mg/kg) Series

a

or

enalapril

and

IV, mg/kg)

significant 10 with

hours (p<0.05) group

the

g,

mg/kg

the 60 however, g,

III,

in Treatment respectively.

(15,

nepicastat and enalapril, enalapril, mass

respectively.

mg/kg

combination, after hypertrophy,

body significantly treated observed none at

nepicastat 30 or

tended

effect in 1

dosing.

had

weight and

effects mg/kg on of Series

with with

at

and and

the the

no on 60 to in 3

2014202047 11 Apr 2014 Nepicastat these nepicastat nepicastat mono-administration magnitudes the or Daily heart induced 346±8 administrations g, contrast, dose (1 30-day lasting effects, comparison, study. 3 experiments significant effect [0451] [0450] [0449] [0453] [0452]

(p<0.01). respectively. mg/kg) 100

treatment

dependent.

deaths

rate,

was treatment

mg/kg, g,

Four In The The The antihypertensive study. the At

an respectively.

enalapril

was at (15, groups

at

effects

gradual co-administration 100 motor antihypertensive

effects

pre-dose of were pre-dose

deaths 30 in the The 30 of

however,

also

The 30,

mg/kg, antihypertensive spontaneously nepicastat. of mg/kg

mg/kg of

angiotensin

undetermined, antihypertensive

on

treated

activity

nepicastat

and of at and seen potentiation nepicastat were

heart of 30-day body 10

body

without

(n=6) 60

nepicastat reached

exhibited

at effect enalapril

mg/kg

observed

with mg/kg) doses rate

and

weights

weights effect

with induced chronic

at

converting

at (p<0.01). hypertensive and

were

nepicastat left

of its

but 15, induced of

effects

3 slight (1

nepicastat

and (n=5)

the

of-20

effect with peak

in

15,

and

ventricular it 30,

observed. mg/kg)

oral of a

of the

appeared enalapril antihypertensive 123

30,

peak

bradycardia

and enalapril 10

the induced of were

to the a was

The administration

4 enzyme

and at

transient -42 mg/kg

-30 series rats (30 antihypertensive 60 rats did

rats 3-10 modest potentiation

observed

60

The

mmHg unlikely (1

mmHg mass mg/kg mg/kg;

not (SHRs)

a were

treated

mg/kg,

mg/kg) of treated inhibitor (n=6)

greater mg/kg during groups

tachycardia. induce

30-day were

but

365±9,

were on effects

throughout

n=6)

that

of

for with

although did

with

tended were

the day with

was or antihypertensive nepicastat that

evaluated

significant

enalapril these the

357±6, induced treatments. effect

not

enalapril awake 371±8,

radio-telemetry of

3

enalapril received observed

detected vehicle,

rest (p<0.01). to nepicastat

affect

deaths these

Co-administration the of

exhibit

363±6,

hours

a

on of 361±7, -20

(10

in

study. greater

antihypertensive

at

effects

blood nepicastat

blood the throughout were throughout alone

enalapril, four mmHg The

mg/kg, of 1

slower

Comparable by effect.

347±8,

mg/kg, and study.

the

related causes and Although

implants. pressure. pressure, series were enalapril and

on rat. 369±7

long- heart at

n=6)

The and and day

not

co the the

no 30 of In of of In to ­

2014202047 11 Apr 2014 mass, the rate to mg/kg nepicastat nepicastat vehicle. hypertrophy, Example of isoflurane on enalapril and consisted autonomic 30 day statistically formulation greater significant pg/kg), SHRs [0454] [0458] [0457] [0456] [0455]

nepicastat. intravenous

motor

left and than treatments. 2

than however,

Nepicastat A Beagle In Treatment

females. of ventricular anti- and

The 100 31

enalapril activity of

the (1

study (15, gas.

agents (30 nepicastat

nepicastat

effects

different

was

1

acetylcholine mg/kg, the hypertensive causes four

mg/kg

male 30

dogs mg/kg) doses

Before

was

then was

Three

was co-administration

in

and

significantly series Each with (1

mass on

and

anesthetized,

were of from

not

mg/kg)

administered n=8) of

without detected. conducted treatment 60

through

dosing

the

with death

rats

1

nepicastat of autonomic of

mg/kg). animal dose

female,

that

administered

effect the left experiments, (10 or

were

a alone. were

with

of

related

causing non-antihypertensive nepicastat reduced SHRs.

an

ventricular

pg/kg), alone.

was enalapril to instrumented and

and

found

to undetermined,

test

intraduodenal of at agents, evaluate

In

each

the

to

surgically the

a

124 The 30 formulation, blood any

These

any

single were in four

greater

nepicastat

nepicastat-treatment

(1 two (30

animal

(n=6)

effect norepinephrine groups hypertrophy of

mg/kg) reflex

deaths the pressure

effects, the evaluated. mg/kg, intraduodenal dogs. compounds

effect

instrumented but

of and and effects cannula.

treatment

treated

the

(15, tachycardia.

occurred alone. co-administration

dose

appeared

the

however, in

100 n=7) on

average

30

observed SHRs blood of

of with regression

A (n=8) (3

(n=5)

and

groups,

nepicastat

The alone

doses enalapril during group

single

pg/kg),

unrelated

while over

blood pressure

were nepicastat 60

significantly

vehicle-control

mg/kg

in Co-administration

of mg/kg)

did consisted no the the

bolus

not

pressure

of SHRs. anesthetized on isoproterenol

0

(1

significant

on

30-day course not

responses to

(vehicle) hypertrophy dose left

mg/kg)

did

and the

responses dose and

regress

ventricular

of

decreased responses related

Although treatment not one of period

was 2

of

the

males had group to effect or

have

with with

(0.3

test

not the the

30 60

of to to in at a

2014202047 11 Apr 2014 was weeks toxicity ml/kg vehicle water. powder weighed Farms, orally of housing applied compounds completion autonomic each Chow® animals cages assigned assigned for pg/ml), [0459] [0464] [0463] [0462] [0461] [0460]

toxicity.

the

animal evaluated

once identified

of before

A At After Dose The duration On

Inc.,

and by with isoproterenol was study were

the

even 10.3 a to

vehicle-control

the

the

agents the

of daily.

60 dog

dogs was a on

In North offered

treatment

vehicle. assignment selection

dosing. to transferred

the time numbers. in nepicastat-treatment

day

mg/ml vendor.

a

and hemodynamic

of was 12.9

with

60

dogs,

1 was experiment,

Clinical were

-month of use.

Rose, of

mg/kg.

once

those

selected kg

treatment,

the

During (6 dosing, environmentally nepicastat

The was

a

groups;

evaluated

and The On

single to

pg/ml), into New

daily study group

study,

signs constituted considered based the

each females

animals

the because

sanitized each a

York. parameters.

and study, oral

the 60-mg/ml number,

males

of

of

and acclimation doses solution.

day on

approximately

toxicity

group dog water dogs dose 1

weighed

data were acetylcholine the of male

Each it

60-mg/ml

125 controlled. were healthy cages was of

is dosing,

were

of animal

was dogs

of

from 5, suspension

commonly were acclimated

The and 400

euthanatized dog

2 Beagle

20,

period, assigned

every 8.5 provided

approximately

males were

two

were

mg/kg

present total was 1

aqueous number, or nepicastat

to

1, female

The

(200 other 80

Π.2 2, housed

studies

dogs the

identified and

dose

was

used.

used

to

and mg/kg odd resulted ad

cages

at

general

kg.

and pg/ml)

solutions laboratory

2 week.

and

were libitum.

were prepared

80

of 3 to females formulation individually with numbers

removed

14

hours

mg/kg/day. were The were tattoo nepicastat evaluate

uniquely

in administered to condition obtained

were Purina nepicastat.

transient

of 16 dogs

cleaned

administered by after were conditions

number.

norepinephrine

months and prepared

from mixing the

retained Certified

in by

were administered dosing.

administered from of

females effects stainless

clinical daily the an

each

In old.

1

The nepicastat

randomly ear at study.

ml/kg in Marshall

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potency

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and

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of to 3 1

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to

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water

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tube

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analyzer

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of

blood

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rate, at pH level of

femoral

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of

agents

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after

10 of

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Heart

vein

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anesthesia

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rate, isoproterenol pressures

dose

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response

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27

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adjustments by 3

pressure

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the

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PO

to evaluating at ml by and approximately approximately

the 2 was

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stability administration

each

approximately values bolus of continuously

blood of evaluated

pressures,

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acetylcholine, acetylcholine increase 1

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(0.3

were

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animal

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aortic

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were

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170

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2014202047 11 Apr 2014 norepinephrine norepinephrine behavioral present. related postdose incidental. of Example isoproterenol intraduodenal sodium characterized cage and cm system and eight class (DBHI), doses evaluated [0476] [0475] [0480] [0479] [0478] [0477]

peak

x

3 water

was have

45 under

photodetectors

of

No At Adult Locomotor The Surgically (San differences pentobarbital

pressure

cm

responses on

32

lightly

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were covered decrease evaluating

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No

Co.).

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mice

placed

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In

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were treatment-related

nepicastat.

only

300 vehicle-control

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128 bedding. within

All

each

aortic present.

than mg/kg, used

postdose

between It

in

lights

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animals has

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g

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acetylcholine) housed The

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responses responses predose

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intravenous

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cage inhibitor

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of

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2014202047 11 Apr 2014 minutes. period, nepicastat were the ml/100 treatment, using or of intervals hydrochloride, Dunn Following each (both counts each (both sonicated. comparisons. effects a significant (defined [0481] [0485] [0484] [0483] [0482]

one-way

testing). vehicle

salt

placed time ’ time p<0.0 p<0.0 the

s

g.

A When In For The and existed. weight motor

procedure

as

overall 1-4

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time (10, and

treatment

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break

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SKF-102698,

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Fisher

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30

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range

120 represented the

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SKF-102698

was

photobeams)

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testing a the to time time

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significant

129

were same strategy

analysis

activity see Compounds a at

mice

the time

180 interaction interaction

group significant

time

3-100

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vehicle

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cage.

technique) minutes.

interval of

were which

the

intervals

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of

had

for mg/kg

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performed

free

was

Following adjust

variance

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were dosed each group

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effect

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interaction.

overall

base,

Activity

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100

to 5 30-100 the

not not

1 effects

animal all allowed administered

and for

hr test with intraperitoneally

for

mg/kg), was intervals, except at significant. significant.

(ANOVA)

p<0.01) prior

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the

for

both

each

60

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for mg/kg. dissolved

to

At

problem the

greater minute to

for

treatment cocaine treatment

time explore

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each testing.

recorded while

in

overall cocaine in

and

to

was effects last The The

any,

a

interval

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in both For

volume

ambulations

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with

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60 no

analysis analysis performed dH

effects treatment The

and and

in every

multiple

interval,

minutes 30 cocaine activity activity at mg/kg) 2

overall

O which

either

using

mice

min. time time time of and

30 of at at 1

2014202047 11 Apr 2014 mg/kg. three mesenteric nepicastat were nepicastat randomly mg/kg weighings or in hypertensive hypertensive Example interval, did groups and counts group). administration, study, administration shown examined. [0487] [0486] [0490] [0489] [0488]

a the

volume not 6

dosed

(all treatments

were

ambulations to and Nepicastat Acute compared In Male had Cocaine

In cause

as The

33

p<0.05).

inhibit

contrast,

at were assigned

(n=8)

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compared artery no of

orally

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rat

dosing

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significant animals mg/kg, dissolved was

the

except

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to 1

with suggest

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a

mg/kg,

following in or administration hypertensive

greater

effects

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rats

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of day of vehicle

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no that

change

the

the mg/kg norepinephrine the demonstrated for

continued dopamine-3-hydroxylase and control. mg/kg 25, or

significant number

on

these

at nepicastat-treated weighed, allowed

a mesenteric following

7 (dH where 18

vehicle mesenteric any total

or

nepicastat

130 in rats

2

was

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25 time Similarly,

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receiving

activity nepicastat n=9.

(SHRs), to

food

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as

yield

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were

artery

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devoid with locomotor

4

of or

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16-17 oral

groups

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day

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groups:

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decapitated

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either weeks

the

from

time motoric after

ad four or

stimulant

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ambulations

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libitum.

water

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1 intervals 3, 24 at oral and

the old hours

could

mg//kg

the

nepicastat at doses 10, SKF-102698-treated

actions total

rats

in

and

at last

at 25 any

administration

at

in

30

free the

the with after be

10

(n=8/treatment activity the

Animals the of

spontaneously treatment 1-4, days or

or time

administered

in ml/kg. spontaneous onset at

base. 30

dose one 100 cortex compound

mice. 10 has but

any

and interval

of

counts mg/kg mg/kg

of

of

of not

were been

time Rats

oral The

and 100

the the the

30 of

5

2014202047 11 Apr 2014 measurements. mesenteric mg/kg not the treatment treatment rate. on comparisons days) catecholamine (p<0.05) differences dopamine/norepinephrine dosing, dopamine/norepinephrine dose dopamine/norepinephrine dopamine/norepinephrine (p>0.05) dopamine/norepinephrine significantly greater [0492] [0491] [0495] [0494] [0493]

the

significantly vehicle

group

Each

means, using dose

After In In The Statistically, (p<0.05)

the different

differences the (Figures

the

groups

variable

were artery in

group

ratio.

of animals 25

(p<0.1) 10 cerebral a norepinephrine

adjusted

mesenteric levels.

The each

non-parametric days (p.>0.05) significantly compared

mg/kg and than

(Figures (1

6-8).

was The

last

the

treatment

or of lower in cortex cortex, sacrificed for control

analyzed

blood ratio

three treatment,

10

dopamine dose ratio ratio ratio ratio There

differences artery, ratios

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to

mg/kg norepinephrine

from

levels. after (p<0.05) of

vehicle.

pressure

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group

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separately. day

compared this the

after

on this

seven

cortex than

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1 None

a 10 7

in 1

group

mg/kg

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sample

mg/kg

control, days to

were

levels analysis of

compared the

were the 25 significantly to

was levels For 7 nepicastat

were the significant

compared

of

nepicastat

days vehicle compared the nepicastat size, f0

or were

treatment, figures nor parameters of also performed

mg/kg

harvested,

in

and

dopamine of vehicle

was to (p<0.05) were

significantly

to

the

group. also

control

dose variance levels

to 6-11,

a

(p<0.05) made dose

nepicastat

vehicle

higher at

the the significantly dose norepinephrine

the

using measured group group,

used

each

weighed, *,

vehicle

in group, dopamine in and the There on

10

p<0.05 group

either the

(ANOVA).

dopamine

mg/kg day

increase in Fisher experiment-wise time

(Figures (p<0.01) 25

for dose.

but were

after 1

either

group.

22.

were

days

was

mg/kg and dose

and

period (p<0.05)

blood ’ levels there dose s

seven no

levels LSD

in

9-11). analyzed

significantly significantly

**, greater

(p<0.01) of group

levels

The significant

the group nepicastat

in were (7

P<0.01. Pairwise pressure the

strategy

days

higher the or cortex cortex

or

were error

than

two

had and

the

for no 25 10 of of

2014202047 11 Apr 2014 nepicastat may hypertensive on embodiment are suitable dopamine-3-hydroxylase claims. embodiments, [0497] [0496]

the suitable

be

contrary,

Nepicastat, It

included modifications

will

compared

and

thereof. rats

be it

it is may

within readily

(SHRs).

is not administered

intended to

be

While

intended and 1

the

made mg/kg, apparent

in

adaptations Greater spirit

the

to

the without

to

orally cover therefore invention

and limit to

inhibition cortex

one

scope

such for

132 to departing the

of the the

7

has

invention

alternatives, and and of ordinary

effects methods was

been the

25 from mesenteric

seen

invention

days,

described

observed

to skill

the

and

the with modifications

significantly

scope in particular applications

as administration

the were in artery

defined

connection of relevant

dose the

forms

of and (p<0.05)

by invention described

dependent.

spontaneously arts equivalents the

set of with

that following 10 forth, inhibited

certain or mg/kg herein

other

any but

as

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