W O 2014/093127 a 2 19 June 2014 (19.06.2014) W P O P C T

Total Page:16

File Type:pdf, Size:1020Kb

W O 2014/093127 a 2 19 June 2014 (19.06.2014) W P O P C T (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (10) International Publication Number (43) International Publication Date W O 2014/093127 A 2 19 June 2014 (19.06.2014) W P O P C T (51) International Patent Classification: AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, A24F 47/00 (2006.01) BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, (21) International Application Number: HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KN, KP, KR, PCT/US2013/073346 KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, (22) International Filing Date: MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, 5 December 2013 (05.12.2013) OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, (25) Filing Language: English TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, (26) Publication Language: English ZW. (84) Designated States (unless otherwise indicated, for every (30) Priority Data: 13/7 15,028 14 December 2012 (14. 12.2012) US kind of regional protection available): ARIPO (BW, GH, 13/871,213 26 April 2013 (26.04.2013) US GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, (72) Inventors; and TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, (71) Applicants : FUISZ, Richard C . [US/US]; 1238 Coldwa- EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, FT, LT, LU, LV, ter Canyon Drive, Beverly Hills, CA 90210 (US). FUISZ, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, Joseph M . [US/US]; 116 Byron Avenue, Surfside, FL TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, 33 154 (US). KM, ML, MR, NE, SN, TD, TG). (74) Agent: SCHIAVELLI, Alan E.; Antonelli, Terry, Stout & PPuubblliisshheedd: Kraus, LLP, 1300 North 17th Street, Suite 1800, Arling — witho'uuti i s r a to be republished ton, VA 22209 (US). i n ti e r n a t i o n a l e a r c hn t e p o rt ti unnda upon receipt of that report (Rule 48.2(g)) (81) Designated States (unless otherwise indicated, for every kind of national protection available): AE, AG, AL, AM, < (54) Title: ENHANCED DELIVERY OF NICOTINE, THC, TOBACCO, CANNABIDIOL OR BASE ALKALOID FROM AN ELECTRONIC CI GARETTE OR OTHER VAPOR OR SMOKE PRODUCING DEVICE THROUGH USE OF AN ABSORPTION CONDITIONING UNIT (57) Abstract: A method for the administration of nicotine, THC, tobacco, cannabidiol or a base alkaloid includes administering in the oral or nasal cavity an absorption conditioning unit having at least two agents selected from the group consisting of (a) a buffer agent, (b) a capturing agent, (c) a penetration agent, and (d) a thermal agent, to the mammal, and then administering by inhalation a bioactive agent selected from the group consisting of nicotine, THC, cannabidiol and a base alkaloid. The absorption conditioning unit may be in a dosage form not containing a drug. The absorption conditioning unit may create a pH in the oral cavity or nasal cav - ity of 7.8-10 for a period of ten minutes or more after administration, the dosage form not containing an acid and not containing a drug. ENHANCED DELIVERY OF NICOTINE, THC, TOBACCO, CANNABIDIOL OR BASE ALKALOID FROM AN ELECTRONIC CIGARETTE OR OTHER VAPOR OR SMOKE PRODUCING DEVICE THROUGH USE OF AN ABSORPTION CONDITIONING UNIT BACKGROUND Electronic vapor devices are increasingly popular with consumers. Such devices comprise electronic cigarettes, electronic pipes, electronic hookahs, personal vaporizers and other inhalator embodiments, both electronic and mechanical. UBS estimates that US e-cigarette sales will reach $500 million by the end of 2012, representing 100% growth from the preceding year (See UBS Tobacco Analyst Nik Modi's May 14, 2012 report entitled "Clearing the Smoke on E-Cigarettes," the entirety of which is incorporated herein by reference). Arguably, the most well-respected tobacco analyst, Bonnie Herzog of Wells Fargo, has gone so far as to suggest in discussing Loriilard: "We remain very encouraged by blu [Lorillard's e-cigarette brand] and see huge upside potential given our belief ecigs could overtake traditional cigarettes in 10 years." See Wells Fargo Loriilard Equity Research dated October 24, 2012, the entirely of which is incorporated herein by reference. British American Tobacco Chief Financial Officer Nicandro Durante stated in an interview with the Financial Times in September 2012 that the size of the market for tobacco alternatives like the e-cigarette could account for as much as 40% of BAT's revenues (which were £15bn in 201 1) in 20 years' time. "It will be sizeable in 20 years' time ... it's going to grow," he said. Despite this rapid sales growth, it is understood that electronic cigarettes fail to deliver a steeply peaked blood plasma delivery of nicotine like the conventional cigarette does. Still, there are good reasons for using the e-cigarette as compared with cigarettes. The level of toxicants from the electronic cigarette is a small fraction as compared with a conventional cigarette. See, e.g., John H. Lauterbach, Murray Laugesen, James D. Ross, "Suggested protocol for estimation of harmful and potentially harmful constituents in mainstream aerosals generated by electronic delivery systems (ENDS)", SOT, San Francisco, CA, March 10-16, 2012 (http://cigtoxdoc.ehost- servicesl 13.com/sot201 2poster1860aspresented.pdf) hereby incorporated by reference). It is typically considered in the industry that electronic vapor device adoption by consumers would be enhanced by faster, improved nicotine delivery from an electronic vapor device. Thus, there is a need to improve nicotine delivery from an electronic vapor device to its user. There is in addition need for delivery improvement (faster and more efficient) in connection with the use of all vapor devices (mechanical and electronic), of any nicotine, tobacco, or marijuana actives. SUMMARY OF THE INVENTION The present invention relates, inter alia, to a method for the administration of nicotine, THC, tobacco, cannabidiol, cocaine or a base alkaloid or combination thereof to a mammal, e.g., a human. The method includes administering an absorption conditioning unit, comprising at least two agents selected from the group consisting of (a) a buffer agent, (b) a capture agent, (c) a penetration agent, and (d) a thermal agent, to the mammal, and then administering by inhalation a bioactive agent selected from the group consisting of nicotine, THC, cannabidiol and a base alkaloid. The present invention also relates to a method for the administration of nicotine, THC, cannabidiol or a base alkaloid to a mammal, including administering an absorption conditioning unit including at least at least one material that creates a pH in the oral cavity of 7.8-10 for a period often minutes or more after administration; and then administering by inhalation a bioactive agent selected from the group consisting of nicotine, THC, tobacco, cannabidiol and a base alkaloid. In one aspect of the present invention, an absorption conditioning unit includes a dosage form including at least two agents selected from the group consisting of (a) a buffer agent, (b) a capture agent, (c) a penetration agent, and (d) a thermal agent, wherein said absorption conditioning unit (i) does not have an essentially acidic character, (ii) does not contain a drug, (iii) does not contain THC or other Marijuana derived active ingredient (or any base alkaloid intended as an active ingredient), and (iv) does not contain tobacco except for trace amounts in flavor. In another aspect of the present invention, an absorption conditioning unit, includes a dosage form including at least at least one material that creates a pH in the oral cavity of 7.8-10 for a period of ten minutes or more after administration, the dosage form not containing an acid and not containing a drug. DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for the oral or nasal administration of nicotine, THC, cannabidiol, cocaine or any base alkaloid to a mammal, especially to a human, and to a prior administered (and/or contemporaneously administered and/or post administered) absorption conditioning unit useful in such a method. Nicotine inhalers are known art. For example, Pfizer markets Nicotrol® in the United States. The Nicotrol® inhaler consists of a mouthpiece and a plastic cartridge delivering 4 mg of nicotine from a porous plug containing 0 mg nicotine. The cartridge is inserted into the mouthpiece prior to use. Nicotine is released when air is inhaled through the inhaler. No heating element is used - the product relies on the natural propensity of nicotine to sublime at room temperature. Despite the inhalation-route of administration by the user of Nicotrol® a buccal route of absorption is described in the Nicotrol® package insert despite the user's inhalation of nicotine from the product (the entire package insert for Nicotrol ® is incorporated herein by reference as if fully set forth). The Nicotrol® package insert describes its method of action: "Most of the nicotine released from the NICOTROL Inhaler is deposited in the mouth. Only a fraction of the dose released, less than 5%, reaches the lower respiratory tract. An intensive inhalation regimen (80 deep inhalations over 20 minutes) releases on the average 4 mg of nicotine content of each cartridge of which about 2 mg is systemically absorbed. Peak plasma concentrations are typically reached within 5 minutes of the end of inhalation.
Recommended publications
  • THE HARD TRUTH ABOUT PROKINETIC MEDICATION USE in PETS Introduction Pathophysiology/Etiology to That Observed in Dogs
    VETTALK Volume 15, Number 04 American College of Veterinary Pharmacists THE HARD TRUTH ABOUT PROKINETIC MEDICATION USE IN PETS Introduction Pathophysiology/Etiology to that observed in dogs. It can be The moving topic of this Vet Talk As with most diseases in the veteri- due to a trichobezoar, dehydration, newsletter will be prokinetic medica- nary world, the etiology and patho- obesity, old age, diabetes, immobility, tions. The availability of information physiology of constipation are varied pain from trauma to the low back, on the many prokinetic agents is var- depending on the species being dis- bladder infection, or an anal sac infec- ied at best so an overall consensus of cussed, where in their gastrointestinal tion. In cases that are more chronic, prokinetic medications will be as- tract the problem is occurring, and underlying disease such as colitis or sessed in this article, hopefully giving any accompanying comorbid condi- Irritable Bowel Syndrome (IBS) may better insight to practitioners about tions. be the culprit. On the other hand, the which agents to use in their patients. cause may be idiopathic which is Canines: In man’s best friend, consti- frustrating for both veterinarian and Prevalence pation has many origins. A dog’s patient since this form is most diffi- Chronic constipation and gastroin- digestive tract itself is complex but cult to treat. testinal stasis are highly debilitating ultimately the mass movements and conditions that not only affect human haustral contractions from the large Equines: Despite their large size, patients but our four legged patients intestine (colon), propel feces into the horses have incredibly delicate diges- as well! Though this condition is rectum stimulating the internal anal tive systems.
    [Show full text]
  • The Pharmacology of Prokinetic Agents and Their Role in the Treatment of Gastrointestinal Disorders
    The Pharmacology of ProkineticAgents IJGE Issue 4 Vol 1 2003 Review Article The Pharmacology of Prokinetic Agents and Their Role in the Treatment of Gastrointestinal Disorders George Y. Wu, M.D, Ph.D. INTRODUCTION Metoclopramide Normal peristalsis of the gut requires complex, coordinated neural and motor activity. Pharmacologic Category : Gastrointestinal Abnormalities can occur at a number of different Agent. Prokinetic levels, and can be caused by numerous etiologies. This review summarizes current as well as new Symptomatic treatment of diabetic gastric agents that show promise in the treatment of stasis gastrointestinal motility disorders. For these Gastroesophageal reflux e conditions, the most common medications used in s Facilitation of intubation of the small the US are erythromycin, metoclopramide, and U intestine neostigmine (in acute intestinal pseudo- Prevention and/or treatment of nausea and obstruction). A new prokinetic agent, tegaserod, vomiting associated with chemotherapy, has been recently approved, while other serotonin radiation therapy, or post-surgery (1) agonist agents (prucalopride, YM-31636, SK-951, n ML 10302) are currently undergoing clinical o Blocks dopamine receptors in chemoreceptor i t studies. Other prokinetics, such as domperidone, c trigger zone of the CNS (2) A are not yet approved in the US, although are used in f Enhances the response to acetylcholine of o other countries. tissue in the upper GI tract, causing enhanced m s i n motility and accelerated gastric emptying a DELAYED GASTRIC EMPTYING OR h without stimulating gastric, biliary, or c G A S T R O E S O P H A G E A L R E F L U X e pancreatic secretions.
    [Show full text]
  • Toxicology in Antiquity
    TOXICOLOGY IN ANTIQUITY Other published books in the History of Toxicology and Environmental Health series Wexler, History of Toxicology and Environmental Health: Toxicology in Antiquity, Volume I, May 2014, 978-0-12-800045-8 Wexler, History of Toxicology and Environmental Health: Toxicology in Antiquity, Volume II, September 2014, 978-0-12-801506-3 Wexler, Toxicology in the Middle Ages and Renaissance, March 2017, 978-0-12-809554-6 Bobst, History of Risk Assessment in Toxicology, October 2017, 978-0-12-809532-4 Balls, et al., The History of Alternative Test Methods in Toxicology, October 2018, 978-0-12-813697-3 TOXICOLOGY IN ANTIQUITY SECOND EDITION Edited by PHILIP WEXLER Retired, National Library of Medicine’s (NLM) Toxicology and Environmental Health Information Program, Bethesda, MD, USA Academic Press is an imprint of Elsevier 125 London Wall, London EC2Y 5AS, United Kingdom 525 B Street, Suite 1650, San Diego, CA 92101, United States 50 Hampshire Street, 5th Floor, Cambridge, MA 02139, United States The Boulevard, Langford Lane, Kidlington, Oxford OX5 1GB, United Kingdom Copyright r 2019 Elsevier Inc. All rights reserved. No part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or any information storage and retrieval system, without permission in writing from the publisher. Details on how to seek permission, further information about the Publisher’s permissions policies and our arrangements with organizations such as the Copyright Clearance Center and the Copyright Licensing Agency, can be found at our website: www.elsevier.com/permissions. This book and the individual contributions contained in it are protected under copyright by the Publisher (other than as may be noted herein).
    [Show full text]
  • Tegaserod in the Treatment of Constipation-Predominant Functional Gastrointestinal Disorders
    DRUG PROFILE Tegaserod in the treatment of constipation-predominant functional gastrointestinal disorders Anurag Agrawal & Irritable bowel syndrome is a common condition for which, until recently, treatment Peter Whorwell† options have been limited. Tegaserod has selective serotonin subtype 4 receptor agonist †Author for correspondence activity and acts by increasing gastrointestinal motility, secretion and possibly reducing ERC Building, First Floor, Wythenshawe Hospital, visceral sensitivity. It has been developed to treat patients with irritable bowel syndrome Southmoor Road, who suffer from abdominal pain, constipation and bloating. Studies so far suggest that it is Manchester, M23 9LT, an effective treatment for these symptoms with an excellent safety profile. Its role in other UK Tel.: +44 161 291 5813 functional gastrointestinal disorders, such as functional dyspepsia, is still being assessed. Fax: +44 161 291 4184 This review describes the structure, pharmacokinetic and pharmacodynamic properties of tegaserod and its effect on gastrointestinal physiology, as well as its clinical utility. Irritable bowel syndrome (IBS) is the most com- drugs such as antidiarrheals, laxatives, antispas- mon condition dealt with by gastroenterolo- modics and antidepressants. Behavioral therapy gists, accounting for up to 30% of their practice is sometimes tried in patients who do not and 10% of primary care case loads [1]. It is respond to conventional treatment. characterized by abdominal pain or discomfort In addition to its costs to the patient, IBS also often related to a change in bowel habit and fre- has a significant direct and indirect economic quently exacerbated by eating. Investigation burden. The direct cost in terms of healthcare reveals no structural abnormality, although a utilization has been estimated to be between variety of gastrointestinal (GI) physiological US$1.7–10 billion/year in the USA alone.
    [Show full text]
  • Molecular Toxicology
    EXS 99 Molecular, Clinical and Environmental Toxicology Volume 1: Molecular Toxicology Edited by Andreas Luch Birkhäuser Verlag Basel · Boston · Berlin Editor Andreas Luch Federal Institute for Risk Assessment Thielallee 88-92 14195 Berlin Germany Library of Congress Control Number: 2008938291 Bibliographic information published by Die Deutsche Bibliothek Die Deutsche Bibliothek lists this publication in the Deutsche Nationalbibliografie; detailed bibliographic data is available in the Internet at http://dnb.ddb.de ISBN 978-3-7643-8335-0 Birkhäuser Verlag AG, Basel – Boston – Berlin This work is subject to copyright. All rights are reserved, whether the whole or part of the material is concerned, specifically the rights of translation, reprinting, re-use of illustrations, recitation, broad- casting, reproduction on microfilms or in other ways, and storage in data banks. For any kind of use, permission of the copyright owner must be obtained. The publisher and editor can give no guarantee for the information on drug dosage and administration contained in this publication. The respective user must check its accuracy by consulting other sources of reference in each individual case. The use of registered names, trademarks etc. in this publication, even if not identified as such, does not imply that they are exempt from the relevant protective laws and regulations or free for general use. © 2009 Birkhäuser Verlag AG Basel – Boston – Berlin P.O. Box 133, CH-4010 Basel, Switzerland Part of Springer Science+Business Media Printed on acid-free paper produced from chlorine-free pulp. TFC ∞ Cover illustration: with friendly permission of Andreas Luch Cover design: Benjamin Blankenburg, Basel, Switzerland Printed in Germany ISBN 978-3-7643-8335-0 e-ISBN 978-3-7643-8336-7 987654321 www.
    [Show full text]
  • Zelnorm®) for Safety Reasons
    NATIONAL PBM BULLETIN April 3, 2007 DEPARTMENT OF VETERANS AFFAIRS VETERANS HEALTH ADMINISTRATION PHARMACY BENEFITS MANAGEMENT STRATEGIC HEALTHCARE GROUP, MEDICAL ADVISORY PANEL, AND CENTER FOR MEDICATION SAFETY (VA MEDSAFE) Discontinued Marketing of Tegaserod (Zelnorm®) for Safety Reasons I. ISSUE – On March 30, 2007, Novartis suspended US marketing and sales of tegaserod in compliance with the Food and Drug Administration’s (FDA) request which was based on a retrospective analysis of pooled clinical trial data showing increased risk of serious cardiovascular adverse events associated with use of tegaserod compared to placebo. II. BACKGROUND – Novartis reported results of an analysis involving 29 short-term randomized, controlled clinical trials of tegaserod which included over 18,000 patients in the clinical trial database. Serious cardiovascular events (angina, MI, and stroke) occurred in 13 of 11,614 (0.11%) tegaserod-treated patients compared to 1 of 7,031 (0.01%) placebo-treated patients (p=0.024). All patients affected had pre-existing cardiovascular disease. III. DISCUSSION – Tegaserod was approved in July 2002 for the short-term treatment of constipation-predominant irritable bowel syndrome (IBS) in women. Subsequently, the drug was approved in August 2004 for the treatment of chronic constipation in men and women under age 65. In January 2006, VA PBM provided criteria for nonformulary use of tegaserod based on available evidence reviewed in the PBM Drug Monograph for tegaserod. A preliminary utilization evaluation was conducted by VAMedSAFE to look at variations in prescribing patterns. Although not an approved indication, patients with gastroesophageal reflux disease (GERD) appeared to be the largest users of tegaserod.
    [Show full text]
  • Zelnorm Page: 1 of 5
    Federal Employee Program® 1310 G Street, N.W. Washington, D.C. 20005 202.942.1000 Fax 202.942.1125 5.50.25 Section: Prescription Drugs Effective Date: April 1, 2020 Subsection: Gastrointestinal Agents Original Policy Date: April 26, 2019 Subject: Zelnorm Page: 1 of 5 Last Review Date: March 13, 2020 Zelnorm Description Zelnorm (tegaserod) Background Zelnorm is an agonist of serotonin type-4 (5-HT4) receptors that stimulates the peristaltic reflex and intestinal secretion, inhibits visceral sensitivity, enhances basal motor activity, and normalizes impaired motility throughout the gastrointestinal tract (1). Regulatory Status FDA-approved indication: Zelnorm is a serotonin-4 (5-HT4) receptor agonist indicated for treatment of adult women less than 65 years of age with irritable bowel syndrome with constipation (IBS-C) (1). Limitations of Use: The safety and effectiveness of Zelnorm in men with IBS-C have not been established (1). Zelnorm is contraindicated in patients with: (1) 1. A history of myocardial infarction (MI), stroke, transient ischemic attack (TIA), or angina. 2. A history of ischemic colitis or other forms of intestinal ischemia. 3. Severe renal impairment (eGFR < 15 mL/min/1.73 m2) or end-stage renal disease. 4. Moderate and severe hepatic impairment (Child-Pugh B or C). 5. A history of bowel obstruction, symptomatic gallbladder disease, suspected sphincter of Oddi Dysfunction, or abdominal adhesions. 5.50.25 Section: Prescription Drugs Effective Date: April 1, 2020 Subsection: Gastrointestinal Agents Original Policy Date: April 26, 2019 Subject: Zelnorm Page: 2 of 5 The safety and effectiveness of Zelnorm in pediatric patients less than 18 years of age have not been established (1).
    [Show full text]
  • Rifaximin (XIFAXAN)
    Rifaximin (XIFAXAN) for Irritable Bowel Syndrome with Diarrhea National Drug Monograph March 2016 VA Pharmacy Benefits Management Services, Medical Advisory Panel, and VISN Pharmacist Executives The purpose of VA PBM Services drug monographs is to provide a focused drug review for making formulary decisions. Updates will be made when new clinical data warrant additional formulary discussion. Documents will be placed in the Archive section when the information is deemed to be no longer current. FDA Approval Information Description/Mechanism of Minimally absorbed, broad-spectrum antibacterial that inhibits bacterial RNA Action synthesis. The specific mechanism of action of rifaximin in irritable bowel syndrome (IBS) has not been determined. The most likely mechanism of rifaximin is reduction in overall bacterial load, particularly in the large bowel1; however, rifaximin also seems to modulate gut microenvironment and produce cytoprotective effects.2 Indication(s) Under Review in Treatment of IBS with diarrhea (IBS-D) in adults this Document Dosage Form(s) Under 550 mg tablet Review REMS REMS No REMS Postmarketing Requirements Pregnancy Rating No data available on pregnant women to inform any drug associated risks. Executive Summary Efficacy Rifaximin had a small, statistically significant beneficial effect relative to placebo in global IBS symptom response using pooled data: 40.7% vs. 31.7%, with a difference of 9.0 percentage points, p < 0.001; NNT = 11. Rifaximin had a small, statistically significant beneficial effect relative to placebo in terms of the response rate for adequate relief of bloating (the key secondary efficacy measure): 40.2% vs. 30.3%, difference of 9.9 percentage points, p < 0.001; NNT = 10 (pooled results).
    [Show full text]
  • Emerging Drug List — Tegaserod Hydrogen Maleate
    Emerging Drug List CANADIAN COORDINATING OFFICE FOR HEALTH TEGASEROD HYDROGEN MALEATE TECHNOLOGY ASSESSMENT NO. 32 MAY 2002 Generic (Trade Name): Tegaserod hydrogen maleate (Zelnorm™) Manufacturer: Novartis Pharmaceuticals Indication: For the symptomatic treatment of irritable bowel syndrome with constipation (IBS-C) in female patients whose main symptoms are constipation and abdominal pain and/or discomfort. The maximum duration of treatment should be no longer than 12 weeks and the treatment should be discontinued if there has been no response after four weeks. Current Regulatory Zelnorm™ was approved by Health Canada's Therapeutic Products Directorate on Status: March 12, 2002. Launch in Canada is impending1. Description: Tegaserod is a partial agonist of 5-HT4 receptors, a new chemical class of proki- netic medications. This subclass of receptors is found throughout the gastroin- testinal tract, and it is postulated that when activated, they minimize the percep- tion of discomfort, pain and constipation associated with IBS. Tegaserod exhibits a low absolute bioavailablity after oral dosing (11%), and the time to achieve a peak concentration ranges from one to 1.3 hours.2 It is highly protein bound (98% to α1-acid glycoprotein) and its terminal half-life is 11± 5 hours. Diarrhea, abdominal pain, headache, flatulence and fatigue are the most frequently report- ed adverse events. Compared to placebo, no differences in QTc interval prolon- gations have been reported in clinical trials, although syncope (an effect seen with cisapride) has been observed at a greater frequency in tegaserod users. The recommended dosage of Zelnorm™ is 6 mg twice daily, administered prior to a meal with water.
    [Show full text]
  • CHEM 263 Notes Sep 27, 2016
    CHEM 263 Notes Sep 27, 2016 Aromatic Compounds Continued Aromaticity Equivalent resonance forms gives stability to a compound. Br Br Br resonance Br Br Br 1,2-dibromobenzene Aromatic compounds are especially stable. For benzene, the delocalization energy (stability) is 36 kcal/mol relative to that expected for cyclohexatriene. To be aromatic (have aromaticity): 1. The molecule is cyclic. 2. The molecule is fully conjugated. 3. The molecule is planar. 4. The molecule contains 4n+2 π electrons, where n = 0, 1, 2, 3 … Benzene fulfills all the above criteria. It is conjugated (has three pairs of alternating double and single bonds), it is cyclic and planar, and it has 6 π electrons (where n = 1). Cyclobutadiene This molecule is cyclic, apparently fully conjugated, and planar. How many π electrons does it have? Answer: 4 Is this molecule aromatic? Answer: No. It does not fit the 4n+2 rule. Cyclooctatetraene Is this molecule aromatic? Answer: No. It has 8 π electrons, so it does not fit with 4n+2 rule In addition, cyclooctatetraene does not adopt a planar conformation. It is actually tub- shaped. In planar cyclooctatetraene, there is some angle and torsional strain. The angle in regular flat octagon is 135°, far from the optimum sp2 value of 120°, hence the tub shape. cis-trans isomerization does not occur in this molecule, and the trans isomer shown below does not exist because there is too much strain (can’t have trans double bond in small rings). Cyclodecapentaene H H This molecule has 10 π electrons. It fits with 4n+2 rule (n = 2).
    [Show full text]
  • Zelnorm Fda Ac Backgrounder Errata
    ZELNORM FDA AC BACKGROUNDER ERRATA Items from the FDA Briefing Document issued for the Advisory Committee meeting held October 17, 2018. The text for correction is identified by a strikethrough, with correction following in double underline, unless otherwise specified. 1. The following paragraph appears on page 26: From a mechanistic perspective, the potential for tegaserod to cause CV ischemia is not well understood. Available 5-HT receptor affinity and functional response data for tegaserod indicate that the drug binds to 5-HT4 receptors with high affinity as an agonist, and binds with moderate to high affinities for 5-HT1 receptor subtypes, as an agonist. Tegaserod also has antagonistic activity at 5-HT2 receptor subtypes. This paragraph is revised to the following: From a mechanistic perspective, the potential for tegaserod to cause CV ischemia is not well understood. Available 5-HT receptor affinity and functional response data for tegaserod indicate that the drug binds to 5-HT4 receptors with high affinity as an agonist, and binds with moderate to high affinities for 5-HT1 and 5-HT2 receptor subtypes, as an agonist. Tegaserod also has antagonistic activity at the 5-HT1 and 5-HT2 receptor subtypes that mediate vasoconstriction [24]. Based on the Cmax of tegaserod (10 nM) at the recommended dose, it is likely that tegaserod binding to 5-HT receptors in humans will be mostly limited to the 5-HT4 and 5-HT2B subtypes (see Table 15 below). 2. The following paragraph appears on page 26: Intravenous administration of 1 mg/kg in rats (1.6 times the recommended oral human dose (6 mg/dose) based on mg/m2) produced reductions in systolic and diastolic blood pressure, with no effects observed at 0.1 mg/kg or lower.
    [Show full text]
  • Albert Hofmann's Pioneering Work on Ergot Alkaloids and Its Impact On
    BIRTHDAY 83 CHIMIA 2006, 60, No. 1/2 Chimia 60 (2006) 83–87 © Schweizerische Chemische Gesellschaft ISSN 0009–4293 Albert Hofmann’s Pioneering Work on Ergot Alkaloids and Its Impact on the Search of Novel Drugs at Sandoz, a Predecessor Company of Novartis Dedicated to Dr. Albert Hofmann on the occasion of his 100th birthday Rudolf K.A. Giger* and Günter Engela Abstract: The scientific research on ergot alkaloids is fundamentally related to the work of Dr. Albert Hofmann, who was able to produce, from 1935 onwards, a number of novel and valuable drugs, some of which are still in use today. The complex chemical structures of ergot peptide alkaloids and their pluripotent pharmacological activity were a great challenge for Dr. Hofmann and his associates who sought to unravel the secrets of the ergot peptide alkaloids; a source of inspiration for the design of novel, selective and valuable medicines. Keywords: Aminocyclole · Bromocriptine Parlodel® · Dihydroergotamine Dihydergot® · Dihydro ergot peptide alkaloids · Ergobasin/ergometrin · Ergocornine · Ergocristine · α- and β-Ergocryptine · Ergolene · Ergoline · Ergoloid mesylate Hydergine® · Ergotamine Gynergen® · Ergotoxine · Lisuride · Lysergic acid diethylamide LSD · Methylergometrine Methergine® · Methysergide Deseril® · Paspalic acid · Pindolol Visken® · Psilocybin · Serotonin · Tegaserod Zelmac®/Zelnorm® · Tropisetron Navoban® Fig. 1. Albert Hofmann in 1943, 1979 and 2001 (Photos in 2001 taken by J. Zadrobilek and P. Schmetz) Dr. Albert Hofmann (Fig. 1), born on From the ‘Ergot Poison’ to *Correspondence: Dr. R.K.A. Giger January 11, 1906, started his extremely Ergotamine Novartis Pharma AG NIBR Global Discovery Chemistry successful career in 1929 at Sandoz Phar- Lead Synthesis & Chemogenetics ma in the chemical department directed The scientific research on ergot alka- WSJ-507.5.51 by Prof.
    [Show full text]