Drugs / Suvorexant
last change Sep 2026 re-read 9 days ago

Suvorexant

Small molecule

Developed for
insomnia · post-traumatic stress disorder · alcohol-related disorders · delirium · opiate dependence · substance-related disorder · Alzheimer disease · bipolar disorder
+18 more · major depressive disorder · nicotine dependence · restless legs syndrome · sleep disorder, initiating and maintaining sleep · abdominal obesity-metabolic syndrome · adrenal gland hyperfunction · anxiety · autism · circadian rhythm sleep disorder, shift work type · fibromyalgia · hypertensive disorder · methamphetamine dependence · obstructive sleep apnea syndrome · panic disorder · sleep disorder · alcohol dependence · progressive supranuclear palsy · traumatic brain injury
Investigated by
Merck Sharp & Dohme LLC · National Institute on Drug Abuse (NIDA) · The University of Texas Health Science Center, Houston · Massachusetts General Hospital · National Institute on Alcohol Abuse and Alcoholism (NIAAA) · Stanford University
+39 more · Brigham and Women's Hospital · Henry Ford Health System · Howard University · Ohio State University · University of Maryland, Baltimore · VA Office of Research and Development · William Stoops · Ascension Brighton Center for Recovery · Augusta University, Dept. of Psychiatry · Columbia University · Diego García-Borreguero, MD, PhD · Eisai Inc. · Georgetown-Howard Universities Center for Clinical and Translational Science · Good Ventures · Institute for Advanced Medical Research, Alpharetta, GA · James J. Peters Veterans Affairs Medical Center · Janssen Research & Development, LLC · Jichi Medical University · Johns Hopkins University · Marianne Goodman · Massachusetts Institute of Technology · Mayo Clinic · Mclean Hospital · Medical University of South Carolina · Milton S. Hershey Medical Center · Montana State University · National Institute of Mental Health (NIMH) · National Institutes of Health (NIH) · Peter McManus Charitable Trust · Purdue Pharma LP · Satt Co.,Ltd · Sleep Research Institute (Paseo de la Habana 151, Madrid 28036, SPAIN) · Theodore R. Brown, MD MPH · University of California, San Francisco · University of Chicago · University of Minnesota · VA Palo Alto Health Care System · Washington University School of Medicine · Wayne State University

Regulatory milestones approvals, filings & regulatory actions · 5 recorded

MilestoneJurisdictionBrandIndicationDateSentence it was read from
Filed insomnia 3 milestones
Filed US (FDA) — insomnia 2014-04-29

“The FDA accepted the resubmission of a New Drug Application for suvorexant for insomnia in April.” merck.com ↗

Rejected (CRL) US (FDA) — insomnia 2013-07-01

“In the Complete Response Letter, the FDA advised Merck that: the efficacy of suvorexant has been established” merck.com ↗

Filed Japan (PMDA) — insomnia 2013-02-01

“Also, the company submitted an NDA for suvorexant to the health authorities in Japan;” merck.com ↗

Approved Indication not stated 2 milestones
Label expansion US (FDA) BELSOMRA — 2020-01-29 fda.gov ↗
Approved US (FDA) BELSOMRA — 2014-08-13 fda.gov ↗

Trials 54

PhaseRegistry idDatesIndicationSponsorStatusOutcome
Phase 04 trials
Phase 0 NCT06326684 Jun 2024 → Mar 2027 expected alcohol-related disorders William Stoops Recruiting No outcome recorded
Phase 0 NCT05829655 Aug 2023 → Jan 2028 expected opiate dependence University of Maryland, Baltimore Recruiting No outcome recorded
Phase 0 NCT05656534 Nov 2022 → Aug 2024 alcohol-related disorders Ohio State University Completed Mixed
Phase 0 NCT03937986 Jul 2019 → Apr 2022 substance-related disorder William Stoops Completed No outcome recorded
Phase 18 trials · 1 missed
Phase 1 NCT05106153 Dec 2021 → May 2023 substance abuse Janssen Research & Development, LLC Completed No outcome recorded
Phase 1 NCT03999099 Sep 2019 → Jul 2023 nicotine dependence Mclean Hospital Completed No outcome recorded
Phase 1 NCT03158025 Apr 2017 → Jul 2018 insomnia Eisai Inc. Completed No outcome recorded
Phase 1 NCT01311882 Apr → Nov 2011 insomnia Merck Sharp & Dohme LLC Completed No outcome recorded
Phase 1 NCT01293006 Mar 2011 → Jan 2012 insomnia Merck Sharp & Dohme LLC Completed No outcome recorded
Phase 1 NCT01300455 Mar → Aug 2011 obstructive sleep apnea syndrome Merck Sharp & Dohme LLC Completed Missed primary
Phase 1 NCT01059851 May → Jul 2010 insomnia Merck Sharp & Dohme LLC Completed No outcome recorded
Phase 1 NCT01043926 Feb → Apr 2010 insomnia, liver disorder Merck Sharp & Dohme LLC Completed No outcome recorded
Phase 213 trials · 1 met primary
Phase 2 NCT07214207 Dec 2025 → Sep 2030 expected alcohol-related disorders Ohio State University Recruiting No outcome recorded
Phase 2 NCT06854224 Sep 2025 → Jul 2027 expected major depressive disorder Marianne Goodman Recruiting No outcome recorded
Phase 2 NCT06444256 Jul 2024 → Jan 2027 expected substance-related disorder The University of Texas Health Science Center, Houston Recruiting No outcome recorded
Phase 2 NCT05908526 Oct 2023 → Aug 2024 insomnia University of Maryland, Baltimore Completed No outcome recorded
Phase 2 NCT05546554 Aug 2023 → Feb 2028 expected autism Stanford University Recruiting No outcome recorded
Phase 2 NCT05711862 Mar 2023 → Mar 2024 methamphetamine dependence The University of Texas Health Science Center, Houston Terminated No outcome recorded Stop: Enrollment
Phase 2 NCT04629547 May 2022 → May 2028 expected Alzheimer disease University of Minnesota Recruiting No outcome recorded
Phase 2 NCT05145764 Mar 2022 → Aug 2026 overdue opiate dependence Johns Hopkins University Recruiting No outcome recorded
Phase 2 NCT04234997 Aug 2021 → Aug 2024 — The University of Texas Health Science Center, Houston Completed No outcome recorded
Phase 2 NCT04262193 Feb 2021 → Jul 2024 opiate dependence Wayne State University Terminated No outcome recorded Stop: Enrollment
Phase 2/31 trial
Phase 2/3 NCT03412591 Jul 2019 → Jan 2023 adrenal gland hyperfunction, sleep disorder Milton S. Hershey Medical Center Completed No outcome recorded
Phase 36 trials · 2 met primary · 1 missed
Phase 3 NCT06655883 Oct 2025 → Jun 2027 expected insomnia Merck Sharp & Dohme LLC Recruiting No outcome recorded
Phase 3 NCT04571944 Oct 2020 → Dec 2022 delirium Merck Sharp & Dohme LLC Completed Missed primary
Phase 3 NCT02750306 May 2016 → Sep 2018 Alzheimer disease, sleep disorder, initiating and maintaining sleep Merck Sharp & Dohme LLC Completed Met primary
Phase 3 NCT01097616 May 2010 → Sep 2011 insomnia Merck Sharp & Dohme LLC Completed Met primary
Phase 3 NCT01097629 May 2010 → Nov 2011 insomnia Merck Sharp & Dohme LLC Completed Mixed
Phase 3 NCT01021813 Dec 2009 → May 2011 insomnia Merck Sharp & Dohme LLC Completed No outcome recorded
Phase 420 trials · 4 met primary · 1 missed
Phase 4 NCT06788522 Jun 2026 → Mar 2032 expected insomnia, post-traumatic stress disorder VA Office of Research and Development Not yet recruiting No outcome recorded
Phase 4 NCT06584942 Mar 2025 → Jun 2026 cannabis dependence Massachusetts General Hospital Completed No outcome recorded
Phase 4 NCT06834386 Feb → Apr 2025 cancer, delirium, hematopoietic and lymphoid system neoplasm, insomnia Mayo Clinic Withdrawn No outcome recorded Stop: Enrollment
Phase 4 NCT06162663 Sep 2024 → Feb 2026 breast cancer, insomnia Medical University of South Carolina Terminated No outcome recorded Stop: Enrollment
Phase 4 NCT05823844 May 2023 → May 2025 overdue delirium Columbia University Recruiting No outcome recorded
Phase 4 NCT05593653 Jan 2023 → Oct 2025 abdominal obesity-metabolic syndrome, insomnia Brigham and Women's Hospital Completed Met primary
Phase 4 NCT04706091 Aug 2021 → Oct 2023 insomnia, restless legs syndrome Massachusetts General Hospital Completed Missed primary
Phase 4 NCT03642028 Aug 2019 → Dec 2025 overdue post-traumatic stress disorder, sleep disorder, initiating and maintaining sleep VA Office of Research and Development Recruiting No outcome recorded
Phase 4 NCT03768713 Apr 2019 → Dec 2022 insomnia Montana State University Unknown No outcome recorded
Phase 4 NCT03764683 Feb 2019 → Jan 2021 bipolar disorder, insomnia Massachusetts General Hospital Withdrawn No outcome recorded
Phase not applicable2 trials · 1 missed
— NCT05630781 Feb 2023 → Dec 2027 expected nicotine dependence National Institute on Drug Abuse (NIDA) Recruiting No outcome recorded
— NCT03077620 Nov 2016 → Mar 2021 — Washington University School of Medicine Completed Missed primary
Comparator or background therapy16 trials
Phase 0 NCT04273776 Comparator Dec 2019 → Nov 2024 overdue — Walter Reed Army Institute of Research (WRAIR) Active not recruiting No outcome recorded
Phase 1 NCT03657355 Comparator Sep 2018 → Aug 2019 — Idorsia Pharmaceuticals Ltd. Completed No outcome recorded
Phase 1/2 NCT06484075 Comparator Nov 2024 → Dec 2028 expected alcohol-related disorders National Institute on Alcohol Abuse and Alcoholism (NIAAA) Recruiting No outcome recorded
Phase 2 NCT06679062 Comparator Jul 2025 → Mar 2027 expected alcohol-related disorders, insomnia, post-traumatic stress disorder Pharmacotherapies for Alcohol and Substance Use Disorders Alliance Recruiting No outcome recorded
Phase 2 NCT05733286 Comparator Jun 2023 → Jun 2025 delirium Duke University Completed No outcome recorded

News releases announcing trial results or a regulatory action · 10

DateIssuerRelease
2020-02-03 Merck Sharp & Dohme LLC Regulatory Merck Receives Approval for BELSOMRA® (suvorexant) C-IV Label Update to Include Findings from Study of Insomnia in Patients with Mild-to-Moderate Alzheimer’s Disease merck.com ↗
Merck (NYSE: MRK), known as MSD outside the United States and Canada, today announced that the company has received approval from the U.S. Food and Drug Administration (FDA) for an update to the prescribing information for BELSOMRA ® (suvorexant) C-IV to include findings on its use for the treatment of insomnia in patients with mild-to-moderate Alzheimer’s disease.
2019-05-07 Merck Sharp & Dohme LLC Results Merck’s BELSOMRA® (suvorexant) C-IV Meets Primary Efficacy Endpoint in Phase 3 Trial for the Treatment of Insomnia in People with Mild-to-Moderate Alzheimer’s Disease Dementia merck.com ↗
This is the first dedicated Phase 3 polysomnography study of an insomnia medication in people with mild-to-moderate Alzheimer’s disease dementia, and in the trial, BELSOMRA met its primary and secondary efficacy endpoints.
2014-08-13 Merck Sharp & Dohme LLC Regulatory FDA Approves BELSOMRA® (suvorexant) for the Treatment of Insomnia merck.com ↗
Merck (NYSE:MRK), known as MSD outside the United States and Canada, announced today that the U.S. Food and Drug Administration (FDA) has approved BELSOMRA ® (suvorexant) for adults with insomnia who have difficulty falling asleep and/or staying asleep.
2014-04-29 Merck Sharp & Dohme LLC Regulatory Merck Announces First-Quarter 2014 Financial Results merck.com ↗
The FDA accepted the resubmission of a New Drug Application for suvorexant for insomnia in April.
2013-07-01 Merck Sharp & Dohme LLC Regulatory Merck Receives Complete Response Letter for Suvorexant, Merck’s Investigational Medicine for Insomnia merck.com ↗
Merck (NYSE: MRK), known as MSD outside the United States and Canada, announced today that the company has received a Complete Response Letter from the U.S. Food and Drug Administration (FDA) regarding the New Drug Application for suvorexant, Merck’s investigational medicine for the treatment of insomnia.
2013-05-22 Merck Sharp & Dohme LLC Regulatory Merck Statement on FDA Advisory Committee Meeting for Suvorexant merck.com ↗
2012-11-08 Merck Sharp & Dohme LLC Regulatory Merck Announces FDA Acceptance of New Drug Application for Suvorexant, an Investigational Insomnia Medicine merck.com ↗
Merck (NYSE: MRK), known as MSD outside the United States and Canada, today announced that the New Drug Application (NDA) for suvorexant, the company’s investigational insomnia medicine, has been accepted for standard review by the U.S. Food and Drug Administration (FDA).
2012-09-10 Merck Sharp & Dohme LLC Results Merck Announces New Phase III Data for Suvorexant, an Investigational Insomnia Medicine merck.com ↗
We found that the patients who had been taking suvorexant for 12 months and were switched to placebo saw their insomnia return, but clinically meaningful withdrawal symptoms and rebound insomnia did not emerge.
2012-06-13 Merck Sharp & Dohme LLC Results New Phase III Data Showed Merck’s Investigational Insomnia Medicine Suvorexant Improved Patients’ Ability to Fall Asleep and Stay Asleep merck.com ↗
In the studies, suvorexant significantly reduced the time it took patients to fall asleep and increased the time that patients stayed asleep as early as the first night and at the three-month time point compared to placebo.
2012-02-06 Merck Sharp & Dohme LLC Results Merck Provides Update on Development Program for Suvorexant, an Investigational Orexin Receptor Antagonist for the Treatment of Insomnia merck.com ↗
The two pivotal Phase III efficacy trials for suvorexant have been completed and, based on the positive results of these studies, Merck plans to file a New Drug Application (NDA) for suvorexant with the U.S. Food and Drug Administration (FDA) in 2012.

All press releases naming this drug 11 releases

DateIssuerRelease

Evidence & citations 9 cited values

Every value below carries the sentence it was read from. 73 sources stand behind the page.

FieldValueCited text
Known as Suvorexant “This research project will translate these preclinical findings into the clinical domain by administering the FDA approved orexin antagonist, suvorexant, to those with a...” NCT05630781 ↗
68

“The purpose of this study is to determine the effects of suvorexant (SUVO), on sleep, stress, and drug craving during early abstinence from stimulants” NCT06444256 ↗

NCT03897062 ↗

NCT05908526 ↗

NCT06484075 ↗

NCT05823844 ↗

NCT02684136 ↗

NCT03999099 ↗

NCT04706091 ↗

NCT03312517 ↗

NCT03158025 ↗

Show 58 more sources

Known as Belsomra “Veteran patients with Major Depressive Disorder and elevated risk of suicide will receive the FDA-approved drug Suvorexant (brand name: Belsomra), a dual orexin receptor...” NCT06854224 ↗
5

“The goal of this study is to observe the impact of suvorexant, sold as BELSOMRA, on brain activity of people who frequently use cannabis.” NCT06584942 ↗

“suvorexant (SUVO; Belsomra), will increase total sleep time in patients with opioid use disorder (OUD) undergoing supervised withdrawal” NCT03789214 ↗

“Suvorexant (trade name Belsomra) is an orexin receptor antagonist that has TGA approval for the treatment of insomnia” NCT03897062 ↗

“Suvorexant (Belsomra) is approved by the U.S. Food and Drug Administration (FDA) to treat insomnia.” NCT03764683 ↗

“Suvorexant (Belsomra®)” NCT03768713 ↗

Known as MK-4305 “suvorexant (MK-4305)” NCT01293006 ↗
1

NCT01311882 ↗

Known as SUV “compared with placebo (PBO) and supratherapeutic doses of zolpidem (ZOL) 30 mg and suvorexant (SUV) 40 mg.” PMID 35748777 ↗ Jun 2022
1

“Suvorexant (SUV) will be placed in opaque capsules with dextrose filler.” NCT05656534 ↗

Known as SUVO “The purpose of this study is to determine the effects of suvorexant (SUVO), on sleep, stress, and drug craving during early abstinence from stimulants” NCT06444256 ↗
3

“suvorexant (SUVO; Belsomra), will increase total sleep time in patients with opioid use disorder (OUD) undergoing supervised withdrawal” NCT03789214 ↗

“Participants will be randomly assigned to receive up to 30-days of Suvorexant (SUVO) or placebo.” NCT05546515 ↗

“suvorexant (SUVO)” NCT05711862 ↗

Known as Suvorexant component of belsomra ChEMBL registry synonym — accepted as the source's own label CHEMBL1083659 ↗
Action Inhibit “suvorexant, an orexin receptor antagonist” PMID 23197752 ↗ Nov 2012
Modality Small molecule — CHEMBL1083659 ↗
Route Oral “oral tablet taken before bedtime” NCT00792298 ↗