New Drugs 2015

Total Page:16

File Type:pdf, Size:1020Kb

New Drugs 2015 New Drugs 2015 Tom Frank, Pharm.D., BCPS Director of Research and Educaon UAMS Northeast • I have no conflicts of interest to report Afrezza® (insulin human inhalaon powder) Mannkind Insulin inhalaon Pharmacology • Rapid acCng inhaled insulin to improved glycemic control in adults with diabetes • SCmulates peripheral glucose uptake by skeletal muscle and fat • Inhibits hepac glucose producCon • Produced by recombinant DNA technology • Adsorbed to carrier parCcles Insulin inhalaon PharmacokineCcs • Peak concentraon reached in 12-15 minutes • Insulin levels back to baseline in 180 minutes • Peak glucose lowering at 53 minutes • Half life 28-39 minutes • Carrier parCcles are not metabolized, eliminated unchanged • Drug interacCons: albuterol (enhanced insulin effect); hyper and hypoglycemia associated drugs as with injected insulin; hypoglycemia symptom effects reduced when on sympatheCc inhibitors Insulin inhalaon Clinical Trials • Inhaled insulin compared to insulin aspart, both added to basal, both given at mealCme • Paents with type 1 diabetes, open label trial over 24 weeks • Pre-specified non-inferiority margin -0.4% HgbA1c • Change from baseline: -0.21% HgbA1c for inhaled and -0.4% HgbA1c for aspart • HgbA1c <7% rate: 13.8% vs 27.1% • FPG change from baseline: -25.3mg/dl vs. +10.2mg/dl Insulin inhalaon Clinical Trials • Paents with type 2 diabetes inadequately controlled on (a)meeormin only or (b)two or more oral anCdiabeCc agents • Compared inhaled insulin to inhaled placebo, randomized, double-blind over 24 weeks • HgbA1c reducCon -0.82% in the inhaled group, -0.42% in the placebo group • HgbA1c < 7%: 32% vs. 15% • FPG change: -11mg/dl vs. -3mg/dl Insulin inhaled Adverse Effects • Cough • Throat pain • Hypoglycemia • Acute bronchospasm (avoid in chronic lung disease) • Decline in FEV1 over me • Lung cancer – 2 cases in clinical trials • DiabeCc ketoacidosis • HypersensiCvity reacCons • Hypokalemia • Fluid retenCon/heart failure when used with TZD’s Inhaled insulin Dosing • Check baseline spirometry, repeat in 6 months and annually • Administer at beginning of a meal • Insulin naïve: inhale four units at each meal • Previous mealCme insulin: 8 units injected = 8 units inhaled • 24 units per dose inhaled is maximum • If previous pre-mixed: divided TDD by 2 then split that number into 3 mealCme doses • Stable 10 days at room temperature • Cartridge and inhaler at room temperature for 10 minutes before dose • Replace inhaler every 15 days Jardiance® (empagliflozin) Boehringer Ingelheim Empagliflozin Pharmacology • Inhibits the SGLT2 receptors in the proximal renal tubule, reduces reabsorpCon of filtered glucose from the filtered lumen • Lowers the renal threshold for glucose, increases urinary glucose excreCon • Benefit in diabetes is as an adjunct to diet and exercise Empagliflozin PharmacokineCcs • Peak concentraon in 1.5 hours • Protein binding 86% • Metabolism by glucuronidaon but no major metabolites • Primarily excreted unchanged in urine and feces • Increased exposure in paents with renal or hepac impairment • Drug interacCons: none detected with meeormin, glimeparide, pioglitazone, sitaglipCn, warfarin, verapamil, ramipril, simvastan, hydrochlorothiazide, digoxin, oral contracepCves Empagliflozin Clinical Trials • Double-blind, placebo controlled trial T2DM • Paents received empagliflozin 10mg or 25mg daily or placebo over 24 weeks • Baseline HgbA1c was 7.9% • Change from placebo in HbA1c: -0.7% and -0.9% • HgbA1c <7%: 35% on 10mg and 44% on 25mg • FPG change: -19mg/dl, -25mg/dl and +12mg/dl in the placebo group • Weight change: -2.5kg, -2.8kg and -0.4kg respecCvely Empagliflozin Clinical Trials • Empagliflozin 10mg and 25mg daily compared to placebo when added to meeormin • Baseline HgbA1c 7.9% • Difference in HgbA1c from meeormin/placebo: empagliflozin 10mg/meormin -0.6%, empagliflozin 25/meormin -0.6% • Rates of HgbA1c < 7%: 38%, 29% and in the meeormin/placebo group 13% Empagliflozin Clinical Trials • Empagliflozin has been as add-on therapy and compared to placebo in paents not adequately controlled with insulin or insulin plus oral agents over 78 weeks • Basal insulin with or without meeormin and/ or sulfonylureas: added empagliflozin 10mg, 25mg or placebo • Change in HgbA1c aer 78 weeks: -0.4%, -0.6% and +0.1% in the group that received placebo Empagliflozin Adverse Effects • Urinary tract infecCon • Female genital mycoc infecon • Upper respiratory infecCon • Increased urinaon • Dyslipidemia • Arthralgia • Male genital mycoc infecon • Nausea • Increased serum creanine Empagliflozin Dosing • 10mg once daily in the morning with or without food • Dose may be increased to 25mg one daily if necessary • Assess renal funcCon before iniCang, do not start is eGFR is < 45ml/min/1.73m2 • Disconnue is eGFR falls to < 45ml/min/1.73m2 Tanzeum® (albigluCde) GSK AlbigluCde Pharmacology • A glucagon-like pepCde (GLP-1) agonist indicated as an adjunct to diet and exercise to improve glycemic control in type 2 diabetes • GLP1 agonist that augments glucose dependent insulin secreCon • Two repeats of GLP-1 fused to recombinant human albumin • Amino acid subsCtuCon to resist DPP-4 AlbigluCde PharmacokineCcs • Peak concentraon in 3-5 days • Metabolism as with nave human albumin • Half life 5 days • No pharmacokineCc differences based on age, gender, race, body weight, mild or moderate renal or hepac impairment • Increased drug exposure in severe renal impairment • Drug interacCon: simvastan AlbigluCde Clinical Trials • AlbigluCde 30mg and 50mg weekly compared to placebo in a 52 week randomized, double- blind trial of paents with type 2 diabetes inadequately controlled with diet and exercise • Change from baseline in HgbA1c: +0.2% with placebo, -0.7% with 30mg and -0.9% with 50mg • Changes in FBS from baseline: +18mg/dl, -16mg/dl and -25mg/dl AlbigluCde Clinical Trials • AlbigluCde has been evaluated in a 104 week randomized, double-blind trial of paents with type 2 diabetes inadequately controlled with meeormin • Paents assigned to: meeormin/placebo, meormin/albigluCde, meormin/sitaglipCn or meormin/glimepiride • Change from baseline in HgbA1c was: meeormin/ placebo +0.3%, meeormin/albigluCde -0.6%, meormin/sitaglipCn -0.3% and meeormin/ glimeparide -0.4% • The proporCon achieving an HgbA1c < 7% was 16%, 39%, 32% and 31% respecCvely AlbigluCde Clinical Trials • AlbigluCde given weekly has been compared to liragluCde given daily in a randomized, open-label non-inferiority trial over 32 weeks • Not controlled on monotherapy or combinaon of oral agents previously • Change in HgbA1c was -0.8% for albigluCde and -1% for liragluCde • ProporCon with HgbA1c < 7%: 42% vs 52% • Change in body weight: -0.6kg vs -2.2kg AlbigluCde Adverse Effects • Upper respiratory infecCon • Diarrhea • Nausea • InjecCon site reacCon • Cough • Back pain • Arthralgia • Sinusis • Influenza AlbigluCde Dosing • 30mg subcutaneous injecCon once weekly • Dose can be increased to 50mg if inadequate response • Separate current dose from last dose by at least 4 days • If miss dose, give within three days of scheduled dose • Allow 15 minutes aer mixing steps for product to dissolve Trulicity® (dulagluCde) Lilly DulagluCde Pharmacology • GLP-1 receptor agonist indicated as adjunct to diet and exercise for glycemic control in type 2 diabetes mellitus • 90% amino acid homology to endogenous human GLP-1 • Fusion protein with 2 chains containing N- terminal sequence linked to immunoglobulin G4 heavy chain • Increases insulin release, decreases glucagon, slows gastric emptying DulagluCde PharmacokineCcs • Time to peak 24-72 hours • Steady state concentraon reached in 2-4 weeks • Bioavailability: 0.75mg- 65%, 1.5mg- 47% • Metabolized by protein catabolism pathways • Half life 5 days • Drug interacCons: none detected DulagluCde Clinical Trials • DulagluCde compared to meormin in paents inadequately controlled on one oral agent • Received dulagluCde 0.75mg, 1.5mg or meormin 1500-2000mg/d • Aqer 52 weeks: HgbA1c changes: -0.7%, -0.8%, -0.6%; FBG changes: -26mg/dl, -29mg/dl, -24mg/dl DulagluCde Clinical Trials • Add-on study to paents already on meormin in placebo-controlled study • Received either dulagluCde 0.75mg, 1.5mg or sitaglipCn 100mg over 104 weeks • Changes in HgbA1c: -0.1%, -1%, -1.2% and -0.6% for the sitaglipCn group • Rates of HgbA1c < 7%: 22%, 56%, 62% and 39% DulagluCde Clinical Trials • Paents previously treated with one or two daily doses of insulin • Stabilized over 7 week stabilizaon period • Randomized to dulagluCde 0.75mg, 1.5mg or insulin glargine • All got pre-prandial insulin lispro • Aqer 26weeks, HgbA1c changes: -1.6%, -1.6% and -1.4% respecCvely DulagluCde Adverse Effects • Nausea • Diarrhea • Voming • Abdominal pain • Decreased appeCte • Dyspepsia • PancreaCs DulagluCde Dosing • 0.75mg subcutaneously once weekly • May increased to 1.5mg once weekly for increased glycemic control • No dose adjustment needed for paents with renal impairment Toujeo® (insulin glargine) Sanofi-AvenCs Insulin glargine Pharmacology • Long acCng insulin analog indicated for adults with diabetes mellitus • SCmulates peripheral glucose uptake and inhibits hepac glucose producCon • Soluble and buffered to pH of 4 • 300 unit/ml product has smaller surface area and 100 unit/ml • RedissoluCon is reduced • Prolonged and consistent effect Insulin glargine PharmacokineCcs • Onset of acCon over 6 hours • Takes 12-16 hours to reach peak effect • Half life 19 hours • Intersubject variability at steady state: 21% • Insulin exposure similar with lower and higher doses • Drug interacCons: risk of hypoglycemia with
Recommended publications
  • Orexin Receptor Antagonists As Therapeutic Agents for Insomnia
    REVIEW ARTICLE published: 25 December 2013 doi: 10.3389/fphar.2013.00163 Orexin receptor antagonists as therapeutic agents for insomnia Ana C. Equihua 1, Alberto K. De La Herrán-Arita 2 and Rene Drucker-Colin 1* 1 Neuropatología Molecular, Instituto de Fisiología Celular, Universidad Nacional Autónoma de México, Mexico City, México 2 Center for Sleep Sciences and Medicine, Stanford University, Palo Alto, CA, USA Edited by: Insomnia is a common clinical condition characterized by difficulty initiating or maintaining Christopher J. Winrow, Merck, USA sleep, or non-restorative sleep with impairment of daytime functioning. Currently, Reviewed by: treatment for insomnia involves a combination of cognitive behavioral therapy (CBTi) Matthew R. Ebben, Weill Medical and pharmacological therapy. Among pharmacological interventions, the most evidence College of Cornell University, USA Gabriella Gobbi, McGill University, exists for benzodiazepine (BZD) receptor agonist drugs (GABAA receptor), although Canada concerns persist regarding their safety and their limited efficacy. The use of these Matt Carter, University of hypnotic medications must be carefully monitored for adverse effects. Orexin (hypocretin) Washington, USA neuropeptides have been shown to regulate transitions between wakefulness and Michihiro Mieda, Kanazawa University, Japan sleep by promoting cholinergic/monoaminergic neural pathways. This has led to the *Correspondence: development of a new class of pharmacological agents that antagonize the physiological Rene Drucker-Colin, Departamento effects of orexin. The development of these agents may lead to novel therapies for de Neurociencias, Instituto de insomnia without the side effect profile of hypnotics (e.g., impaired cognition, disturbed Fisiología Celular, Universidad arousal, and motor balance difficulties). However, antagonizing a system that regulates Nacional Autónoma de México, Circuito exterior S/N, Apdo.
    [Show full text]
  • OREXIN ANTAGONISTS BELSOMRA (Suvorexant), DAYVIGO (Lemborexant)
    OREXIN ANTAGONISTS BELSOMRA (suvorexant), DAYVIGO (lemborexant) RATIONALE FOR INCLUSION IN PA PROGRAM Background Belsomra (suvorexant) and Dayvigo (lemborexant) are orexin receptor antagonists used to treat difficulty in falling and staying asleep (insomnia). Orexins are chemicals that are involved in regulating the sleep-wake cycle and play a role in keeping people awake (1-2). Regulatory Status FDA-approved indication: Orexin receptor antagonists are indicated for the treatment of insomnia, characterized by difficulties with sleep onset and/or sleep maintenance (1-2). Orexin Antagonists are contraindicated in patients with narcolepsy (1-2). Orexin Antagonists are central nervous system (CNS) depressants that can impair daytime wakefulness even when used as prescribed. Medications that treat insomnia can cause next-day drowsiness and impair driving and other activities that require alertness. Orexin Antagonists can impair driving skills and may increase the risk of falling asleep while driving. People can be impaired even when they feel fully awake. Patients should also be made aware of the potential for next-day driving impairment, because there is individual variation in sensitivity to the drug (1-2). The failure of insomnia to remit after 7 to 10 days of treatment may indicate the presence of a primary psychiatric and/or mental illness that should be evaluated (1-2). Warnings and precautions that should be discussed with the patient on Orexin Antagonist therapy include adverse reactions on abnormal thinking and behavioral changes (such as amnesia, anxiety, hallucinations and other neuropsychiatric symptoms), complex behaviors (such as sleep- driving, preparing and eating food, or making phone calls), dose-dependent increase in suicidal ideation, and sleep paralysis which is the inability to move or speak for up to several minutes during sleep-wake transitions (1-2).
    [Show full text]
  • Merck & Co., Inc
    As filed with the Securities and Exchange Commission on February 25, 2021 UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D. C. 20549 _________________________________ FORM 10-K (MARK ONE) ☒ Annual Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the Fiscal Year Ended December 31, 2020 OR ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission File No. 1-6571 _________________________________ Merck & Co., Inc. 2000 Galloping Hill Road Kenilworth New Jersey 07033 (908) 740-4000 New Jersey 22-1918501 (State or other jurisdiction of incorporation) (I.R.S Employer Identification No.) Securities Registered pursuant to Section 12(b) of the Act: Title of Each Class Trading Symbol(s) Name of Each Exchange on which Registered Common Stock ($0.50 par value) MRK New York Stock Exchange 1.125% Notes due 2021 MRK/21 New York Stock Exchange 0.500% Notes due 2024 MRK 24 New York Stock Exchange 1.875% Notes due 2026 MRK/26 New York Stock Exchange 2.500% Notes due 2034 MRK/34 New York Stock Exchange 1.375% Notes due 2036 MRK 36A New York Stock Exchange Number of shares of Common Stock ($0.50 par value) outstanding as of January 31, 2021: 2,530,315,668. Aggregate market value of Common Stock ($0.50 par value) held by non-affiliates on June 30, 2020 based on closing price on June 30, 2020: $195,461,000,000. Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.
    [Show full text]
  • Role of the Orexin Receptor System in Stress, Sleep and Cocaine Use
    Role of the orexin receptor system in stress, sleep and cocaine use NCT02785406 Version Date: 04/25/2017 IRB NUMBER: HSC-MS-16-0120 IRB APPROVAL DATE: 04/25/2017 Title: Role of the orexin receptor system in stress, sleep and cocaine use Principal Investigator: Scott D. Lane Co-Investigators: Joy M. Schmitz, Charles E. Green, Jin H. Yoon, Michael F. Weaver ABSTRACT Preclinical research has established important functions for the orexin system in mediating arousal/sleep, stress, and cue-induced reinstatement of drug taking (e.g., relapse). The role of stress/anxiety and drug cue reactivity in human drug relapse is well established, but to date, the role of the orexin system in modulating these phenomena has not been examined in humans with substance use disorders (e.g., cocaine). The goal of the present first-in-human study will be to examine the effects of an orexin antagonist (suvorexant) on interactions among stress/anxiety, sleep, and drug-cue reactivity. We will utilize a battery of highly sensitive, drug-specific, laboratory measures of drug cue reactivity (a relapse risk model), and well-established metrics of stress/anxiety and sleep. We hypothesize that antagonism of the orexin system will attenuate the link between (1) stress/anxiety and drug cue reactivity, and (2) sleep and drug cue reactivity. These results will elucidate a unique biochemical mechanism for understanding relapse, and provide a potential medication target for relapse prevention SCIENTIFIC IMPACT Given the promising preclinical data on the orexin system in modulating sleep, anxiety, and drug cue reactivity, this research project has high translational scientific value.
    [Show full text]
  • G Protein-Coupled Receptors
    S.P.H. Alexander et al. The Concise Guide to PHARMACOLOGY 2015/16: G protein-coupled receptors. British Journal of Pharmacology (2015) 172, 5744–5869 THE CONCISE GUIDE TO PHARMACOLOGY 2015/16: G protein-coupled receptors Stephen PH Alexander1, Anthony P Davenport2, Eamonn Kelly3, Neil Marrion3, John A Peters4, Helen E Benson5, Elena Faccenda5, Adam J Pawson5, Joanna L Sharman5, Christopher Southan5, Jamie A Davies5 and CGTP Collaborators 1School of Biomedical Sciences, University of Nottingham Medical School, Nottingham, NG7 2UH, UK, 2Clinical Pharmacology Unit, University of Cambridge, Cambridge, CB2 0QQ, UK, 3School of Physiology and Pharmacology, University of Bristol, Bristol, BS8 1TD, UK, 4Neuroscience Division, Medical Education Institute, Ninewells Hospital and Medical School, University of Dundee, Dundee, DD1 9SY, UK, 5Centre for Integrative Physiology, University of Edinburgh, Edinburgh, EH8 9XD, UK Abstract The Concise Guide to PHARMACOLOGY 2015/16 provides concise overviews of the key properties of over 1750 human drug targets with their pharmacology, plus links to an open access knowledgebase of drug targets and their ligands (www.guidetopharmacology.org), which provides more detailed views of target and ligand properties. The full contents can be found at http://onlinelibrary.wiley.com/doi/ 10.1111/bph.13348/full. G protein-coupled receptors are one of the eight major pharmacological targets into which the Guide is divided, with the others being: ligand-gated ion channels, voltage-gated ion channels, other ion channels, nuclear hormone receptors, catalytic receptors, enzymes and transporters. These are presented with nomenclature guidance and summary information on the best available pharmacological tools, alongside key references and suggestions for further reading.
    [Show full text]
  • G Protein‐Coupled Receptors
    S.P.H. Alexander et al. The Concise Guide to PHARMACOLOGY 2019/20: G protein-coupled receptors. British Journal of Pharmacology (2019) 176, S21–S141 THE CONCISE GUIDE TO PHARMACOLOGY 2019/20: G protein-coupled receptors Stephen PH Alexander1 , Arthur Christopoulos2 , Anthony P Davenport3 , Eamonn Kelly4, Alistair Mathie5 , John A Peters6 , Emma L Veale5 ,JaneFArmstrong7 , Elena Faccenda7 ,SimonDHarding7 ,AdamJPawson7 , Joanna L Sharman7 , Christopher Southan7 , Jamie A Davies7 and CGTP Collaborators 1School of Life Sciences, University of Nottingham Medical School, Nottingham, NG7 2UH, UK 2Monash Institute of Pharmaceutical Sciences and Department of Pharmacology, Monash University, Parkville, Victoria 3052, Australia 3Clinical Pharmacology Unit, University of Cambridge, Cambridge, CB2 0QQ, UK 4School of Physiology, Pharmacology and Neuroscience, University of Bristol, Bristol, BS8 1TD, UK 5Medway School of Pharmacy, The Universities of Greenwich and Kent at Medway, Anson Building, Central Avenue, Chatham Maritime, Chatham, Kent, ME4 4TB, UK 6Neuroscience Division, Medical Education Institute, Ninewells Hospital and Medical School, University of Dundee, Dundee, DD1 9SY, UK 7Centre for Discovery Brain Sciences, University of Edinburgh, Edinburgh, EH8 9XD, UK Abstract The Concise Guide to PHARMACOLOGY 2019/20 is the fourth in this series of biennial publications. The Concise Guide provides concise overviews of the key properties of nearly 1800 human drug targets with an emphasis on selective pharmacology (where available), plus links to the open access knowledgebase source of drug targets and their ligands (www.guidetopharmacology.org), which provides more detailed views of target and ligand properties. Although the Concise Guide represents approximately 400 pages, the material presented is substantially reduced compared to information and links presented on the website.
    [Show full text]
  • IJBCP International Journal of Basic & Clinical Pharmacology Orexin
    Print ISSN: 2319-2003 | Online ISSN: 2279-0780 IJBCP International Journal of Basic & Clinical Pharmacology DOI: http://dx.doi.org/10.18203/2319-2003.ijbcp20161493 Review Article Orexin receptors: a journey through their discovery to the development of suvorexant, the new sleeping pill Anandabaskar Nishanthi*, Mourouguessine Vimal, Selvarajan Sandhiya, Steven Aibor Dkhar JIPMER, Sri Manakula Vinayagar Medical College and ABSTRACT Hospital, Puducherry, India Orexin (OX) neuropeptides acting through G-protein coupled OX1 and OX2 Received: 29 March 2016 receptors are implicated in a variety of physiological roles including regulation Accepted: 27 April 2016 of feeding, sleep-wake cycle, energy metabolism and reward pathways. Accumulating experimental evidence indicates that orexins are wake promoting *Correspondence to: neuropeptides and deficits in orexinergic neurotransmission leads to narcolepsy, Dr. Anandabaskar Nishanthi, a debilitating sleep disorder. This has led to a search for orexin receptor agonists Email: nishanthi11189 for pharmacotherapy of narcolepsy. However, development of orexin receptor @gmail.com agonists are still in their infancy stage and it invokes further research to know whether it could turn into a reality. In addition, the role of orexin neuropeptides Copyright: © the author(s), in promoting arousal and wakefulness has generated considerable interest in publisher and licensee Medip developing orexin receptor antagonists for treatment of insomnia. This quest Academy. This is an open- was accomplished with the approval of suvorexant by United States food and access article distributed under drug administration in 2014. This remarkable discovery has opened a novel the terms of the Creative approach for treatment of insomnia through neuromodulation of orexin Commons Attribution Non- signaling. Hence this review focuses on the orexinergic system, their Commercial License, which physiological action and potential role as pharmacological targets.
    [Show full text]
  • Sfn2015 Items of Interest
    Presentations and Posters of Interest Society for Neuroscience Meeting (2015) 34.01/A100. Estradiol rapidly attenuates ORL-1 receptor-mediated inhibition of proopiomelanocortin neurons via Gq-coupled, membrane-initiated signaling *K. M. CONDE1, C. MEZA2, M. KELLY3, K. SINCHAK4, E. WAGNER2; 1Grad. Col. of Biomed. Sci., 2Col. of Osteo. Med. of the Pacific, Western Univ. of Hlth. Sci., Pomona, CA; 3 Dept. of Physiol. & Pharmacol., Oregon Hlth. and Sci. Univ., Portland, OR; 4California State University, Long Beach, Long Beach, CA Ovarian estrogens act through multiple receptor signaling mechanisms that converge on hypothalamic arcuate nucleus (ARH) proopiomelanocortin (POMC) neurons. A subpopulation of these neurons project to the medial preoptic nucleus (MPN) to regulate lordosis. Orphanin FQ/nociception (OFQ/N) via its opioid-like receptor (ORL-1) regulates lordosis through direct actions on these MPN-projecting POMC neurons. Based o an ever-burgeoning precedence for fast steroid actions, we explored whether estradiol excites ARH POMC neurons by rapidly attenuating inhibitory ORL-1 signaling in these cells. Experiments were carried out in hypothalamic slices prepared from ovariectomized female rats injected one-week prior with the retrograde tracer Fluorogold into the MPN. During electrophysiologic recordings, cells were held at or near -60 mV. Post-hoc identification of neuronal phenotype was determined via immunohistofluorescence. In vehicle-treated slices OFQ/N caused a robust outward current/hyperpolarization via activation of GIRK channels. This OFQ/N-induced outward current was attenuated by 17-β estradiol (E2, 100nM). The 17α enantiomer of E2 had n effect. The OFQ/N-induced response was also attenuated by an equimolar concentration of E2 conjugated to BSA.
    [Show full text]
  • Persistent Effects of the Orexin-1 Receptor Antagonist SB-334867 on Motivation for the Fast Acting Opioid Remifentanil
    bioRxiv preprint doi: https://doi.org/10.1101/521633; this version posted January 17, 2019. The copyright holder for this preprint (which was not certified by peer review) is the author/funder. All rights reserved. No reuse allowed without permission. Persistent effects of the orexin-1 receptor antagonist SB-334867 on motivation for the fast acting opioid remifentanil Aida Mohammadkhani1,2, Morgan H. James3,4 and Gary Aston-Jones3 1 School of Cognitive Sciences (SCS), Institute for Research in Fundamental Sciences (IPM), PO Box 1954851167, Tehran, Iran 2Department of Physiology & Pharmacology, Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada 3Brain Health Institute, Rutgers University, Piscataway, NJ 08854 4Florey Institute of Neuroscience and Mental Health, University of Melbourne, VIC, Australia Submitting author: Aida Mohammadkhani [email protected] Corresponding author: Gary Aston-Jones, Ph.D. Brain Health Institute Rutgers University 683 Hoes Lane West, R. 259 Piscataway NJ 08854 P: (732) 235 6077 F: (732) 235 5814 E: [email protected] For submission to the special issue: ‘Orexin/hypocretin receptor antagonists for the treatment of addiction and related psychiatric disease: What are the steps from here?’ (Eds. Aston-Jones and James). bioRxiv preprint doi: https://doi.org/10.1101/521633; this version posted January 17, 2019. The copyright holder for this preprint (which was not certified by peer review) is the author/funder. All rights reserved. No reuse allowed without permission. Abstract: The orexin (hypocretin) system is important for reward-seeking behavior. The orexin-1 receptor (Ox1R) antagonist SB334867 (SB) reduces seeking of food and drug reward under conditions of high motivation.
    [Show full text]
  • Suvorexant Spent in Bed
    VOLUME 40 : NUMBER 3 : JUNE 2017 NEW DRUGS defined as the ratio of the time asleep to the time Suvorexant spent in bed. At the start of the study, the average sleep efficiency was 66% with a total sleep time of Aust Prescr 2017;40:116–7 Approved indication: insomnia 316 minutes. These measures improved from the http://dx.doi.org/10.18773/ Belsomra (Merck Sharp and Dohme) first night of active treatment. After four weeks of austprescr.2017.040 15 mg and 20 mg tablets taking suvorexant, sleep efficiency had improved First published Australian Medicines Handbook section 18.4 by 4.7–10.4% and total sleep time had increased by 10 May 2017 There are different patterns of insomnia, such as a 22–50 minutes.1 delayed onset of sleep and difficulty maintaining Two placebo-controlled trials randomised a total sleep. Orexins are neuropeptides which are involved of 2030 patients with primary insomnia.2 In the in the regulation of sleep and arousal. Orexins A and B suvorexant groups 742 patients aged 18–64 years promote wakefulness. Blocking their receptors should took 20 mg or 40 mg while 521 older people took therefore reduce wakefulness and promote sleep. 15 mg or 30 mg. The patients kept sleep diaries and Suvorexant is the first orexin receptor antagonist to had polysomnography at intervals during the three be marketed in Australia. months of treatment. From the first night of treatment The drug is taken within 30 minutes of bedtime. This there was a difference in efficacy between suvorexant should be at least seven hours before the patient plans and placebo.
    [Show full text]
  • Belsomra®: a Novel Dual Orexin Receptor Antagonist for the Treatment of Insomnia
    Pharmacy and Wellness Review Volume 7 Issue 1 Article 1 January 2016 Belsomra®: A Novel Dual Orexin Receptor Antagonist for the Treatment of Insomnia Shane Bogusz Ohio Northern University Steven Blake Ohio Northern University Michaela Wolford Ohio Northern University Victoria Cho Ohio Northern University Manoranjan D'Souza Ohio Northern University, [email protected] Follow this and additional works at: https://digitalcommons.onu.edu/paw_review Part of the Medical Pharmacology Commons, Nervous System Diseases Commons, Neurology Commons, and the Pharmaceutics and Drug Design Commons This Article is brought to you for free and open access by the ONU Journals and Publications at DigitalCommons@ONU. It has been accepted for inclusion in Pharmacy and Wellness Review by an authorized editor of DigitalCommons@ONU. For more information, please contact [email protected]. CNS Belsomra®: A Novel Dual Orexin Receptor Antagonist for the Treatment of Insomnia Shane Bogusz, Steven Blake, Michaela Wolford, Victoria Cho, Manoranjan D'Souza, M.D., Ph.D. Key Terms This knowledge-based activity is targeted for all pharmacists Belsomra®; Benzodiazepine; Dual Orexin Receptor Antago­ and is acceptable for 1.0 hour (0.1 CEU) of continuing nist; DORA, Insomnia, Insomnia Treatment, Orexin, education credit. This course requires completion Suvorexant of the program evaluation and at least a 70 percent grade on the program assessment questions. Introduction Insomnia refers to a disease state that involves persistent ACPE Universal Activity Number (UAN): 0048-0000-16-005-HOl-P difficulty falling asleep and/or frequent awakenings during sleep. Over 35 percent of the adult population exhibits one or To complete the continuing education program and receive more symptoms associated with insomnia, with 12 percent credit, please go to www.raabecollegeofpharmacy.org/PAW/.
    [Show full text]
  • United Mine Workers of America Health and Retirement Funds 2021
    United Mine Workers of America Health and Retirement Funds 2021 UPDATED 01/01/2021 INTRODUCTION .............................................................................................................................................................................. 5 NONDISCRIMINATION STATEMENT ............................................................................................................................................. 5 PREFACE ......................................................................................................................................................................................... 8 PHARMACY AND THERAPEUTICS (P&T) COMMITTEE .............................................................................................................. 8 PRODUCT SELECTION CRITERIA ................................................................................................................................................. 8 DRUG LIST PRODUCT DESCRIPTIONS ........................................................................................................................................ 8 GENERIC SUBSTITUTION .............................................................................................................................................................. 9 PREFERRED PRODUCT PROGRAM ............................................................................................................................................. 9 ADVANCED CONTROL SPECIALTY FORMULARY ...................................................................................................................
    [Show full text]