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Neshat SS, Heidari A, Henriquez-Beltran M, Patel K, Colaco B, Arunthari V, Lee Mateus AY, Cheung J, Labarca G. Evaluating pharmacological treatments for excessive daytime sleepiness in obstructive sleep apnea: A comprehensive network meta-analysis and systematic review. Sleep Med Rev 2024; 76:101934. [PMID: 38754208 DOI: 10.1016/j.smrv.2024.101934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Revised: 03/10/2024] [Accepted: 04/02/2024] [Indexed: 05/18/2024]
Abstract
Obstructive sleep apnea (OSA) is associated with excessive daytime sleepiness (EDS). Pharmacotherapy offers a potential treatment approach for EDS in OSA patients. This systematic review and meta-analysis aimed to assess the efficacy and safety of pharmacological interventions for alleviating EDS in patients with OSA. Following PRISMA guidelines, we included randomized controlled trials investigating pharmacological treatments for EDS in adult OSA until August 2023. We conducted meta-analysis, subgroup, and meta-regression analyses using a random effects model. Finally, a network meta-analysis synthesized direct and indirect evidence, followed by a comprehensive safety analysis. We included 32 articles in the meta-analysis (n = 3357). Pharmacotherapy showed a significant improvement in the Epworth Sleepiness Scale (ESS) score (Mean Difference (MD) -2.73, (95 % Confidence Interval (CI) [-3.25, -2.20], p < 0.01) and Maintenance of Wakefulness Test (MWT) score (MD 6.00 (95 % CI [2.66, 9.33] p < 0.01). Solriamfetol, followed by Pitolisant and modafinil, exhibited the greatest ESS reduction, while Danavorexton, followed by Solriamfetol and MK-7288, had the strongest impact on MWT. MK-7288 had the most total adverse events (AEs), followed by Danavorexton and armodafinil. Pharmacological Interventions significantly alleviate EDS in OSA patients but with heterogeneity across medications. Treatment decisions should involve a personalized assessment of patient factors and desired outcomes.
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Affiliation(s)
- Seyed Sina Neshat
- Department of Epidemiology and Statistics, University of California, San Francisco, CA, USA; Division of Pulmonary, Allergy and Sleep Medicine, Mayo Clinic Jacksonville, Florida, USA
| | - Afshin Heidari
- School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mario Henriquez-Beltran
- Núcleo de Investigación en Ciencias de la Salud, Universidad Adventista de Chile, Chillán, Chile
| | - Kripa Patel
- Division of Pulmonary, Allergy and Sleep Medicine, Mayo Clinic Jacksonville, Florida, USA
| | - Brendon Colaco
- Division of Pulmonary, Allergy and Sleep Medicine, Mayo Clinic Jacksonville, Florida, USA
| | - Vichaya Arunthari
- Division of Pulmonary, Allergy and Sleep Medicine, Mayo Clinic Jacksonville, Florida, USA
| | | | - Joseph Cheung
- Division of Pulmonary, Allergy and Sleep Medicine, Mayo Clinic Jacksonville, Florida, USA
| | - Gonzalo Labarca
- Division of Pulmonary and Critical Care Medicine, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, USA; Department of Respiratory Diseases, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile.
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Di Costanzo F, Carrano S, Iengo G, Cefaliello A, Cossiga V, Morisco F, Giuliano M, De Angelis C, Arpino G. Ribociclib in newly diagnosed hepatitis B infection: A case report. Front Oncol 2023; 13:1184952. [PMID: 37361578 PMCID: PMC10285519 DOI: 10.3389/fonc.2023.1184952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2023] [Accepted: 05/19/2023] [Indexed: 06/28/2023] Open
Abstract
Breast cancer is the most frequently diagnosed cancer in women worldwide. Actually CDK4/6 inhibitor Ribociclib is approved for the treatment of metastatic hormone-positive and human epidermal growth factor receptor 2 (HER 2)-negative breast cancer, but comorbidities like infectious or cardiovascular diseases may limit its use. Case report A 45-year-old woman was diagnosed with metastatic breast cancer in September 2021; also, her hepatitis screening resulted positive for hepatitis B infection. Patient assumed eradicative therapy for hepatitis and bit after started oncological therapy with Ribociclib. Outcome Frequent check of hepatological function was observed since start of eradicative therapy; liver transaminases and bilirubin kept to not rise despite start of oncological treatment with Ribociclib. Patient's Performance Status was also not compromised and revaluation at 4, 9 and 13 months showed partial response and then stable disease. Discussion hepatotoxicity of Ribociclib is reported as a possible side effect, and often positivity for hepatitis is cause of exclusion from therapy; in our case, no hepatotoxicity was noted and patient obtained response in terms of control of both infectious and oncological diseases.
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Affiliation(s)
- Fabrizio Di Costanzo
- Division of Medical Oncology, Department of Clinical Medicine, University of Naples Federico II, Naples, Italy
| | - Simone Carrano
- Division of Medical Oncology, Department of Clinical Medicine, University of Naples Federico II, Naples, Italy
| | - Gennaro Iengo
- Division of Medical Oncology, Department of Clinical Medicine, University of Naples Federico II, Naples, Italy
| | - Amedeo Cefaliello
- Division of Medical Oncology, Department of Clinical Medicine, University of Naples Federico II, Naples, Italy
| | - Valentina Cossiga
- Department of Clinical Medicine and Surgery, Diseases of the Liver and Biliary System Unit, University of Naples “Federico II”, Naples, Italy
| | - Filomena Morisco
- Department of Clinical Medicine and Surgery, Diseases of the Liver and Biliary System Unit, University of Naples “Federico II”, Naples, Italy
| | - Mario Giuliano
- Division of Medical Oncology, Department of Clinical Medicine, University of Naples Federico II, Naples, Italy
| | - Carmine De Angelis
- Division of Medical Oncology, Department of Clinical Medicine, University of Naples Federico II, Naples, Italy
| | - Grazia Arpino
- Division of Medical Oncology, Department of Clinical Medicine, University of Naples Federico II, Naples, Italy
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Inoue Y, Uchiyama M, Umeuchi H, Onishi K, Ogo H, Kitajima I, Matsushita I, Nishino I, Uchimura N. Optimal dose determination of enerisant (TS-091) for patients with narcolepsy: two randomized, double-blind, placebo-controlled trials. BMC Psychiatry 2022; 22:141. [PMID: 35193545 PMCID: PMC8862520 DOI: 10.1186/s12888-022-03785-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Accepted: 02/09/2022] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND The histamine H3 receptor has emerged as one of the most promising targets of novel pharmacotherapy for narcolepsy. Studies now aim to investigate the optimal dose of enerisant, a novel H3 antagonist/inverse agonist, for the treatment of excessive daytime sleepiness in patients with narcolepsy. METHODS We conducted two phase 2, fixed-dose, double-blind, randomized, placebo-controlled trials in patients with narcolepsy. The first phase 2 study (Study 1) was conducted to investigate the efficacy and safety of enerisant at dosages of 25, 50, and 100 mg/day administered for 3 weeks based on the results of a phase 1 study conducted on healthy volunteers. The primary endpoint was mean sleep latency in maintenance of wakefulness test (MWT), and the secondary endpoint was the total score on the Epworth Sleepiness Scale (ESS). The dosages of enerisant in the second phase 2 study (Study 2) were set at 5 and 10 mg/day based on the simulation of receptor occupancy results from positron emission tomography study. RESULTS Forty-six and fifty-three patients were randomized in Study 1 and Study 2, respectively. The efficacy of enerisant was partially confirmed in Study 1 with ESS; however, the doses were not tolerated, and there were many withdrawals due to adverse events (mainly insomnia, headache, and nausea). The doses in Study 2 were well tolerated, with a lower incidence of adverse events in Study 2 than in Study 1, although the efficacy could not be confirmed with MWT and ESS in Study 2. CONCLUSIONS The optimal dose of enerisant could not be determined in these two studies. Although enerisant has a favorable pharmacokinetic profile, it is thought to have large interindividual variabilities in terms of efficacy and safety, suggesting the necessity of tailored dosage adjustments. TRIAL REGISTRATION ClinicalTrials.gov identifier: NCT03267303 ; Registered 30 August 2017 (Study 2). Japic identifier: JapicCTI-142529 ; Registered 7 May 2014 (Study 1) and JapicCTI-173689 ; Registered 30 August 2017, https://www.clinicaltrials.jp/cti-user/trial/ShowDirect.jsp?clinicalTrialId=29277 (Study 2).
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Affiliation(s)
- Yuichi Inoue
- Japan Somnology Center, Institute of Neuropsychiatry, 5-10-10 Yoyogi, Shibuya-ku, Tokyo, 151-0053, Japan.
- Department of Somnology, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan.
| | - Makoto Uchiyama
- Department of Psychiatry, Nihon University School of Medicine, 30-1 Oyaguchi-kamicho, Itabashi, , Tokyo, 173-8610, Japan
- Tokyoadachi Hospital, 5-23-20 Hokima, Adachi, Tokyo, 121-0064, Japan
| | - Hideo Umeuchi
- Development Headquarters, Taisho Pharmaceutical Co., Ltd., 3-24-1 Takada, Toshima-Ku, Tokyo, 170-8633, Japan
| | - Koichi Onishi
- Development Headquarters, Taisho Pharmaceutical Co., Ltd., 3-24-1 Takada, Toshima-Ku, Tokyo, 170-8633, Japan
| | - Hiroki Ogo
- Development Headquarters, Taisho Pharmaceutical Co., Ltd., 3-24-1 Takada, Toshima-Ku, Tokyo, 170-8633, Japan
| | - Iwao Kitajima
- Development Headquarters, Taisho Pharmaceutical Co., Ltd., 3-24-1 Takada, Toshima-Ku, Tokyo, 170-8633, Japan
| | - Isao Matsushita
- Development Headquarters, Taisho Pharmaceutical Co., Ltd., 3-24-1 Takada, Toshima-Ku, Tokyo, 170-8633, Japan
| | - Izumi Nishino
- Development Headquarters, Taisho Pharmaceutical Co., Ltd., 3-24-1 Takada, Toshima-Ku, Tokyo, 170-8633, Japan
| | - Naohisa Uchimura
- Department of Neuropsychiatry, Kurume University School of Medicine, 67 Asahi-machi, Kurume, Fukuoka, 830-0011, Japan
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Su S, Kay G, Hochadel T, Rojo J, Christopher Stein J, Boinpally R, Periclou A. A randomized, multicenter trial assessing the effects of rapastinel compared to ketamine, alprazolam, and placebo on simulated driving performance. Clin Transl Sci 2022; 15:255-266. [PMID: 34423904 PMCID: PMC8742651 DOI: 10.1111/cts.13145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 05/20/2021] [Accepted: 08/03/2021] [Indexed: 11/29/2022] Open
Abstract
N-methyl-D-aspartate ionotropic glutamatergic receptor (NMDAR) modulators, including rapastinel and ketamine, elicit rapid and sustained antidepressant responses in patients with treatment-resistant major depressive disorder. This phase I, randomized, multicenter, placebo-controlled, five-period, crossover, single-dose study evaluated simulated driving performance of healthy participants (N = 107) after single doses of rapastinel slow intravenous (i.v.) bolus 900 and 1800 mg, alprazolam oral 0.75 mg (positive control), ketamine i.v. infusion 0.5 mg/kg (clinical comparator), and placebo ~ 45 min before driving. The primary end point was SD of lateral position (SDLP) during the 60-min 100-km simulated driving scenario. Additional measures of driving performance, sleepiness, and cognition were also evaluated. To assess effects over time, mean SDLP was calculated for each 10-min interval of driving. Sensitivity of the assays was confirmed with alprazolam (all placebo comparisons p < 0.02). Rapastinel 900 and 1800 mg did not significantly affect simulated driving performance compared to placebo (both p > 0.5). Both rapastinel doses resulted in significantly less impaired driving compared to alprazolam or ketamine (all p < 0.002); ketamine significantly impaired driving compared to placebo (p = 0.0001). Results for the additional measures were similar to the primary end point. No new safety signals were observed for any study interventions. This first study of rapastinel effects on simulated driving found that rapastinel 900 and 1800 mg did not impair driving performance, but ketamine 0.5 mg/kg resulted in significantly impaired driving performance. Ketamine's effects on driving were maintained for at least 105 min, indicating that clinicians should be vigilant to prevent or postpone driving in patients after ketamine treatment.
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Affiliation(s)
- Shengfang Su
- Allergan plc (now AbbVie, Inc.)MadisonNew JerseyUSA
| | - Gary Kay
- Cognitive Research CorporationSt. PetersburgFloridaUSA
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Ghamari N, Kouhi Hargelan S, Zivkovic A, Leitzbach L, Dastmalchi S, Stark H, Hamzeh-Mivehroud M. Guided rational design with scaffold hopping leading to novel histamine H 3 receptor ligands. Bioorg Chem 2021; 117:105411. [PMID: 34653944 DOI: 10.1016/j.bioorg.2021.105411] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 10/03/2021] [Accepted: 10/04/2021] [Indexed: 11/29/2022]
Abstract
During the past decades, histamine H3 receptors have received widespread attention in pharmaceutical research due to their involvement in pathophysiology of several diseases such as neurodegenerative disorders. In this context, blocking of these receptors is of paramount importance in progression of such diseases. In the current investigation, novel histamine H3 receptor ligands were designed by exploiting scaffold-hopping drug-design strategy. We inspected the designed molecules in terms of ADME properties, drug-likeness, as well as toxicity profiles. Additionally molecular docking and dynamics simulation studies were performed to predict binding mode and binding free energy calculations, respectively. Among the designed structures, we selected compound d2 and its demethylated derivative as examples for synthesis and affinity measurement. In vitro binding assays of the synthesized molecules demonstrated that d2 has lower binding affinity (Ki = 2.61 μM) in radioligand displacement assay to hH3R than that of demethylated form (Ki = 12.53 μM). The newly designed compounds avoid of any toxicity predictors resulted from extended in silico and experimental studies, can offer another scaffold for histamine H3R antagonists for further structure-activity relationship studies.
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Affiliation(s)
- Nakisa Ghamari
- Biotechnology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; School of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Aleksandra Zivkovic
- Heinrich Heine University Düsseldorf, Institute of Pharmaceutical and Medicinal Chemistry, Universitaetsstr. 1, D-40225 Duesseldorf, Germany
| | - Luisa Leitzbach
- Heinrich Heine University Düsseldorf, Institute of Pharmaceutical and Medicinal Chemistry, Universitaetsstr. 1, D-40225 Duesseldorf, Germany
| | - Siavoush Dastmalchi
- Biotechnology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; School of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Holger Stark
- Heinrich Heine University Düsseldorf, Institute of Pharmaceutical and Medicinal Chemistry, Universitaetsstr. 1, D-40225 Duesseldorf, Germany.
| | - Maryam Hamzeh-Mivehroud
- Biotechnology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; School of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran.
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Ghamari N, Zarei O, Arias-Montaño JA, Reiner D, Dastmalchi S, Stark H, Hamzeh-Mivehroud M. Histamine H 3 receptor antagonists/inverse agonists: Where do they go? Pharmacol Ther 2019; 200:69-84. [PMID: 31028835 DOI: 10.1016/j.pharmthera.2019.04.007] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2018] [Accepted: 04/19/2019] [Indexed: 12/16/2022]
Abstract
Since the discovery of the histamine H3 receptor in 1983, tremendous advances in the pharmacological aspects of H3 receptor antagonists/inverse agonists have been accomplished in preclinical studies. At present, there are several drug candidates that reached clinical trial studies for various indications. However, entrance of these candidates to the pharmaceutical market is not free from challenges, and a variety of difficulties is engaged with their developmental process. In this review, the potential role of H3 receptors in the pathophysiology of various central nervous system, metabolic and allergic diseases is discussed. Thereafter, the current status for H3 receptor antagonists/inverse agonists in ongoing clinical trial studies is reviewed and obstacles in developing these agents are emphasized.
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Affiliation(s)
- Nakisa Ghamari
- Biotechnology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; School of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Omid Zarei
- Cellular and Molecular Research Center, Research Institute for Health Development, Kurdistan University of Medical Sciences, Sanandaj, Iran; Neurosciences Research Center, Kurdistan University of Medical Sciences, Sanandaj, Iran
| | - José-Antonio Arias-Montaño
- Departamento de Fisiología, Biofísica y Neurociencias, Centro de Investigación y de Estudios Avanzados del IPN, Av. Instituto Politécnico Nacional 2508, Zacatenco, 07360 Ciudad de México, México
| | - David Reiner
- Heinrich Heine University Düsseldorf, Institute of Pharmaceutical and Medicinal Chemistry, Universitaetsstr. 1, 40225 Duesseldorf, Germany
| | - Siavoush Dastmalchi
- Biotechnology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; School of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Holger Stark
- Heinrich Heine University Düsseldorf, Institute of Pharmaceutical and Medicinal Chemistry, Universitaetsstr. 1, 40225 Duesseldorf, Germany.
| | - Maryam Hamzeh-Mivehroud
- Biotechnology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; School of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran.
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Łażewska D, Kieć-Kononowicz K. Progress in the development of histamine H 3 receptor antagonists/inverse agonists: a patent review (2013-2017). Expert Opin Ther Pat 2018; 28:175-196. [PMID: 29334795 DOI: 10.1080/13543776.2018.1424135] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
INTRODUCTION Since years, ligands blocking histamine H3 receptor (H3R) activity (antagonists/inverse agonists) are interesting targets in the search for new cures for CNS disorders. Intensive works done by academic and pharmaceutical company researchers have led to many potent and selective H3R antagonists/inverse agonists. Some of them have reached to clinical trials. AREAS COVERED Patent applications from January 2013 to September 2017 and the most important topics connected with H3R field are analysed. Espacenet, Patentscope, Pubmed, GoogleScholar or Cochrane Library online databases were principially used to collect all the materials. EXPERT OPINION The research interest in histamine H3R field is still high although the number of patent applications has decreased during the past 4 years (around 20 publications). Complexity of histamine H3R biology e.g. many isoforms, constitutive activity, heteromerization with other receptors (dopamine D2, D1, adenosine A2A) and pharmacology make not easy realization and evaluation of therapeutic potential of anti-H3R ligands. First results from clinical trials have verified potential utility of histamine H3R antagonist/inverse agonists in some diseases. However, more studies are necessary for better understanding of an involvement of the histaminergic system in CNS-related disorders and helping more ligands approach to clinical trials and the market. Lists of abbreviations: hAChEI - human acetylcholinesterase inhibitor; hBuChEI - human butyrylcholinesterase inhibitor; hMAO - human monoamine oxidase; MAO - monoamine oxidase.
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Affiliation(s)
- Dorota Łażewska
- a Department of Technology and Biotechnology of Drugs , Jagiellonian University Medical College , Kraków , Poland
| | - Katarzyna Kieć-Kononowicz
- a Department of Technology and Biotechnology of Drugs , Jagiellonian University Medical College , Kraków , Poland
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Sadek B, Saad A, Sadeq A, Jalal F, Stark H. Histamine H3 receptor as a potential target for cognitive symptoms in neuropsychiatric diseases. Behav Brain Res 2016; 312:415-30. [PMID: 27363923 DOI: 10.1016/j.bbr.2016.06.051] [Citation(s) in RCA: 111] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2016] [Revised: 06/22/2016] [Accepted: 06/26/2016] [Indexed: 01/27/2023]
Abstract
The potential contributions of the brain histaminergic system in neurodegenerative diseases, and the possiblity of histamine-targeting treatments is attracting considerable interests. The histamine H3 receptor (H3R) is expressed mainly in the central nervous system, and is, consequently, an attractive pharmacological target. Although recently described clinical trials have been disappointing in attention deficit hyperactivity disorder (ADHD) and schizophrenia (SCH), numerous H3R antagonists, including pitolisant, demonstrate potential in the treatment of narcolepsy, excessive daytime sleepiness associated with cognitive impairment, epilepsy, and Alzheimer's disease (AD). This review focuses on the recent preclinical as well as clinical results that support the relevance of H3R antagonists for the treatment of cognitive symptoms in neuropsychiatric diseases, namely AD, epilepsy and SCH. The review summarizes the role of histaminergic neurotransmission with focus on these brain disorders, as well as the effects of numerous H3R antagonists on animal models and humans.
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Affiliation(s)
- Bassem Sadek
- Department of Pharmacology & Therapeutics, College of Medicine & Health Sciences, United Arab Emirates University, P.O. Box 17666, Al Ain, United Arab Emirates.
| | - Ali Saad
- Department of Pharmacology & Therapeutics, College of Medicine & Health Sciences, United Arab Emirates University, P.O. Box 17666, Al Ain, United Arab Emirates
| | - Adel Sadeq
- College of Pharmacy, Al Ain University of Science and Technology, Al Ain, United Arab Emirates
| | - Fakhreya Jalal
- Department of Pharmacology & Therapeutics, College of Medicine & Health Sciences, United Arab Emirates University, P.O. Box 17666, Al Ain, United Arab Emirates
| | - Holger Stark
- Institute of Pharmaceutical and Medicinal Chemistry, Heinrich Heine University, Universitaetsstr. 1, 40225 Düsseldorf, Germany
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Kay GG, Schwartz HI, Wingertzahn MA, Jayawardena S, Rosenberg RP. Next-day residual effects of gabapentin, diphenhydramine, and triazolam on simulated driving performance in healthy volunteers: a phase 3, randomized, double-blind, placebo-controlled, crossover trial. Hum Psychopharmacol 2016; 31:217-26. [PMID: 27018419 DOI: 10.1002/hup.2530] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/10/2015] [Revised: 01/27/2016] [Accepted: 02/16/2016] [Indexed: 11/05/2022]
Abstract
OBJECTIVE Next-day residual effects of a nighttime dose of gabapentin 250 mg were evaluated on simulated driving performance in healthy participants in a randomized, placebo-controlled, double-blind, multicenter, four-period crossover study that included diphenhydramine citrate 76 mg and triazolam 0.5 mg. METHODS At treatment visits, participants (n = 59) were dosed at ~23:30, went to bed immediately, and awakened 6.5 h postdose for evaluation. The primary endpoint was the standard deviation of lateral position for the 100-km driving scenario. Additional measures of driving, sleepiness, and cognition were included. RESULTS Study sensitivity was established with triazolam, which demonstrated significant next-day impairment on all driving endpoints, relative to placebo (p < 0.001). Gabapentin demonstrated noninferiority to placebo on standard deviation of lateral position and speed deviation but not for lane excursions. Diphenhydramine citrate demonstrated significant impairment relative to gabapentin and placebo on speed deviation (p < 0.05). Other comparisons were either nonsignificant or statistically ineligible per planned, sequential comparisons. Secondary endpoints for sleepiness and cognitive performance were supportive of these conclusions. CONCLUSIONS Together, these data suggest that low-dose gabapentin had no appreciable next-day effects on simulated driving performance or cognitive functioning. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- Gary G Kay
- Cognitive Research Corporation, St. Petersburg, Florida, USA
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