Drugs / Eszopiclone
last change Jun 2026 re-read 9 days ago

Eszopiclone

Small molecule

Developed for
insomnia · obstructive sleep apnea syndrome · major depressive disorder · schizophrenia · attention deficit-hyperactivity disorder · sleep disorder, initiating and maintaining sleep · cannabis dependence · circadian rhythm sleep disorder, shift work type
+10 more · depressive disorder · fibromyalgia · osteoarthritis, knee · Parkinson disease · post-traumatic stress disorder · prediabetes syndrome · sleep disorder · type 2 diabetes mellitus · anxiety · generalized anxiety disorder
Investigated by
Sumitomo Pharma America, Inc. · Massachusetts General Hospital · University of California, San Diego · Beth Israel Deaconess Medical Center · Yale University · Brigham and Women's Hospital
+29 more · Eisai Inc. · Johns Hopkins University · Mclean Hospital · National Heart, Lung, and Blood Institute (NHLBI) · University of California, Los Angeles · Abiant, Inc. · American Academy of Sleep Medicine · American Thoracic Society · Butler Hospital · Emory University · Eurofarma Laboratorios S.A. · Flinders University · Food and Drug Administration (FDA) · GlaxoSmithKline · Kettering Health Network · Lehigh Center for Clinical Research · Lesley A. Allen, Ph.D. · MedVadis Research Corporation · National Center for Research Resources (NCRR) · National Institute of Mental Health (NIMH) · National Institute on Drug Abuse (NIDA) · Philips Healthcare · ResMed Foundation · Southern Arizona VA Health Care System · University of Arizona · University of Chicago · University of Medicine and Dentistry of New Jersey · VA Office of Research and Development · Wake Forest University Health Sciences

Regulatory milestones approvals, filings & regulatory actions · 2 recorded

MilestoneJurisdictionBrandIndicationDateSentence it was read from
Label expansion US (FDA) LUNESTA — 2012-10-10 fda.gov ↗
Approved US (FDA) LUNESTA — 2004-12-15 fda.gov ↗

Trials 45

PhaseRegistry idDatesIndicationSponsorStatusOutcome
Phase 13 trials
Phase 1 NCT01887691 Oct 2012 → Aug 2015 glucose intolerance, prediabetes syndrome, type 2 diabetes mellitus Beth Israel Deaconess Medical Center Terminated No outcome recorded
Phase 1 NCT00893269 Oct 2008 → Oct 2010 cannabis dependence Johns Hopkins University Completed No outcome recorded
Phase 1 NCT00368160 Mar 2004 → Jul 2005 insomnia Sumitomo Pharma America, Inc. Completed No outcome recorded
Phase 25 trials · 1 met primary
Phase 2 NCT06928766 Oct 2025 → May 2027 expected obstructive sleep apnea syndrome Flinders University Recruiting No outcome recorded
Phase 2 NCT05953610 Jan 2024 → Aug 2028 expected obstructive sleep apnea syndrome University of California, Los Angeles Recruiting No outcome recorded
Phase 2 NCT05951023 Aug 2023 → Jul 2025 obstructive sleep apnea syndrome University of California, San Diego Completed No outcome recorded
Phase 2 NCT04639193 Dec 2020 → Jan 2022 obstructive sleep apnea syndrome University of California, San Diego Completed Met primary
Phase 2 NCT04875364 Aug 2020 → Feb 2026 obstructive sleep apnea syndrome University of California, San Diego Completed No outcome recorded
Phase 2/31 trial · 1 met primary
Phase 2/3 NCT00770510 Sep 2008 → May 2010 insomnia Eisai Inc. Completed Met primary
Phase 314 trials · 1 met primary · 3 missed
Phase 3 NCT07332442 May 2026 → Jan 2030 expected obstructive sleep apnea syndrome Yale University Recruiting No outcome recorded
Phase 3 NCT01100164 Mar 2011 → Mar 2012 insomnia Eurofarma Laboratorios S.A. Completed Met primary
Phase 3 NCT00857220 May 2009 → Oct 2011 attention deficit-hyperactivity disorder, insomnia Sumitomo Pharma America, Inc. Completed Missed primary
Phase 3 NCT00856973 May 2009 → Jul 2011 attention deficit-hyperactivity disorder, insomnia Sumitomo Pharma America, Inc. Completed Missed primary
Phase 3 NCT00770692 Oct 2008 → May 2010 insomnia Eisai Inc. Completed No outcome recorded
Phase 3 NCT00699608 Jul → Oct 2008 sleep disorder, initiating and maintaining sleep GlaxoSmithKline Completed Missed primary
Phase 3 NCT00435279 Jun 2007 → Jul 2009 insomnia, major depressive disorder Sumitomo Pharma America, Inc. Completed No outcome recorded
Phase 3 NCT00324896 May 2006 → Jun 2009 Parkinson disease, insomnia University of Medicine and Dentistry of New Jersey Completed No outcome recorded
Phase 3 NCT00368056 Apr 2005 → Jun 2006 insomnia Sumitomo Pharma America, Inc. Completed No outcome recorded
Phase 3 NCT00366093 Feb 2004 → Jan 2005 insomnia Sumitomo Pharma America, Inc. Completed No outcome recorded
Phase 415 trials · 3 met primary · 3 missed
Phase 4 NCT03937713 Dec 2019 → Sep 2024 insomnia VA Office of Research and Development Completed Missed primary
Phase 4 NCT00628914 May 2008 → Nov 2009 insomnia, major depressive disorder University of California, Los Angeles Unknown No outcome recorded
Phase 4 NCT00724282 Apr 2008 → Mar 2012 insomnia University of Chicago Completed No outcome recorded
Phase 4 NCT00822679 Oct 2007 → Aug 2009 acute coronary syndrome, sleep disorder University of Arizona Completed No outcome recorded
Phase 4 NCT00889200 May 2007 → Dec 2008 insomnia Butler Hospital Completed No outcome recorded
Phase 4 NCT00812214 Apr 2007 → Sep 2008 insomnia, migraine disorder MedVadis Research Corporation Completed Missed primary
Phase 4 NCT00511134 Apr 2007 → Dec 2008 insomnia, nicotine dependence Yale University Terminated Missed primary Stop: Enrollment
Phase 4 NCT00414037 Dec 2006 → Dec 2008 insomnia University of California, San Diego Terminated No outcome recorded Stop: Business
Phase 4 NCT00386334 Oct 2006 → Feb 2008 insomnia Sumitomo Pharma America, Inc. Completed Met primary
Phase 4 NCT00813735 Sep 2006 → Mar 2009 insomnia Lehigh Center for Clinical Research Completed No outcome recorded
Phase not applicable7 trials · 1 met primary
— NCT01641900 Jul 2012 → Dec 2015 schizophrenia Massachusetts General Hospital Completed No outcome recorded
— NCT00900159 May 2009 → Jan 2010 circadian rhythm sleep disorder, shift work type Brigham and Women's Hospital Completed No outcome recorded
— NCT00645944 Apr 2008 → Apr 2011 insomnia, schizoaffective disorder, schizophrenia Yale University Completed Met primary
— NCT00833547 Sep 2006 → Sep 2012 schizophrenia Massachusetts General Hospital Completed No outcome recorded
— NCT00555750 Mar 2006 → Jul 2008 insomnia Brigham and Women's Hospital Completed No outcome recorded
— NCT00374192 Feb 2006 → Jul 2007 insomnia Massachusetts General Hospital Completed No outcome recorded
— NCT00374556 Jan 2006 → Dec 2013 insomnia, osteoarthritis, knee Johns Hopkins University Completed No outcome recorded
Comparator or background therapy22 trials
Phase 0 NCT01102270 Comparator Jan → Aug 2009 obstructive sleep apnea syndrome Brigham and Women's Hospital Completed No outcome recorded
Phase 1 NCT05349396 Comparator Apr 2022 — Laboratorios Andromaco S.A. Completed No outcome recorded
Phase 1/2 NCT05293600 Comparator Jul 2023 → Oct 2026 expected obstructive sleep apnea syndrome Brigham and Women's Hospital Recruiting No outcome recorded
Phase 2 NCT00616655 Comparator Jan → Dec 2008 generalized anxiety disorder Sumitomo Pharma America, Inc. Completed No outcome recorded
Phase 2 NCT00685269 Comparator Aug 2003 → Jan 2004 obstructive sleep apnea syndrome Sumitomo Pharma America, Inc. Completed No outcome recorded

News releases announcing trial results or a regulatory action · 4

DateIssuerRelease
2021-02-15 Upsher-Smith Laboratories Regulatory Sawai Receives Approvals for Eight Generic Drugs with 20 Strengths upsher-smith.com ↗
Osaka, Japan – February 15, 2021 – Sawai Pharmaceutical Co., Ltd. (Sawai, Head office: Osaka, Japan, President: Kenzo Sawai) received approvals by the Ministry of Health, Labour and Welfare for eight generic drugs with 20 strengths.
2012-01-18 Eisai Inc. Regulatory EISAI RECEIVES APPROVAL TO MARKET INSOMNIA TREATMENT LUNESTA® IN JAPAN eisai.com ↗
Eisai Co., Ltd. (Headquarters: Tokyo, President & CEO: Haruo Naito, “Eisai”) announced today that it received approval from Japan's Ministry of Health, Labour and Welfare (MHLW) on January 18, 2012 to market Lunesta® (eszopiclone), a product the company has been developing in Japan, as a treatment for insomnia.
2010-11-30 Eisai Inc. Regulatory EISAI SUBMITS MARKETING AUTHORIZATION APPLICATION IN JAPAN FOR INSOMNIA TREATMENT SEP-190 eisai.com ↗
Eisai Co., Ltd. (Headquarters: Tokyo, President & CEO: Haruo Naito) announced today that it has submitted a Marketing Authorization Application (MAA) to the Japanese Ministry of Health, Labour and Welfare seeking approval for SEP-190 (generic name: eszopiclone), a product the company has been developing in Japan, as a treatment for insomnia.
2010-09-15 Eisai Inc. Results JAPANESE CLINICAL TRIALS CONFIRM SAFETY AND EFFICACY OF INSOMNIA TREATMENT SEP-190 EISAI PLANS TO SUBMIT MAA IN FISCAL 2010 eisai.com ↗
Results showed that, compared with placebo, SEP-190 statistically significantly reduced latency to persistent sleep (LPS), as measured by a PSG, and sleep latency (SL), as measured by subjective evaluation, the study's two primary outcome measures.

Evidence & citations 13 cited values

Every value below carries the sentence it was read from. 70 sources stand behind the page.

FieldValueCited text
Known as Eszopiclone “Eszopiclone (Lunesta) is a new non-narcotic, non-benzodiazepine hypnotic agent which received FDA approval on December 15, 2004 for the treatment of acute and chronic insomnia.” NCT00507117 ↗
65

“Subjects will receive eszopiclone (in combination with medical oxygen) during their treatment arm studies” NCT01633827 ↗

“An Evaluation of Potential Next-day Residual Effects of Eszopiclone in Healthy Volunteers.” NCT00699608 ↗

“Lunesta (Eszopiclone) 3 mg taken 30 minutes before the start of split-night PSG” NCT00811746 ↗

NCT00628914 ↗

NCT00368056 ↗

NCT00893269 ↗

NCT00812214 ↗

NCT00366093 ↗

NCT00365261 ↗

NCT00555750 ↗

Show 55 more sources

Known as (S)-ZOPICLONE ChEMBL registry synonym — accepted as the source's own label CHEMBL1522 ↗
Known as Estorra ChEMBL registry synonym — accepted as the source's own label CHEMBL1522 ↗
Known as ESZ “We sought to assess the augmentation of brief behavioral therapy for insomnia (BBTI) with eszopiclone (ESZ) over BBTI alone for the treatment of chronic insomnia” PMID 40202618 ↗ Apr 2025
1

“One week of open-label fluoxetine (FLX), followed by 8 more weeks of FLX combined with either eszopiclone (ESZ) 3 mg or placebo at bedtime.” PMID 20726279 ↗ Aug 2010

Known as Eszopiclon ChEMBL registry synonym — accepted as the source's own label CHEMBL1522 ↗
Known as Eszopiclona ChEMBL registry synonym — accepted as the source's own label CHEMBL1522 ↗
Known as Eszopiclone civ ChEMBL registry synonym — accepted as the source's own label CHEMBL1522 ↗
Known as GSK-1755165 ChEMBL registry synonym — accepted as the source's own label CHEMBL1522 ↗
Known as Lunesta “Eszopiclone (Lunesta) is a new non-narcotic, non-benzodiazepine hypnotic agent which received FDA approval on December 15, 2004 for the treatment of acute and chronic insomnia.” NCT00507117 ↗
7

“The sleeping pill, Eszopiclone (Lunesta), has been approved by the Food and Drug Administration for the treatment of people who complain of trouble falling or staying asleep.” NCT00724282 ↗

“Over the course of the three study visits, each subject will receive eszopiclone (Lunesta), zolpidem (ambien) and a placebo in random order.” NCT00781482 ↗

“The Efficacy of Eszopiclone (Lunesta) for Chronic Insomnia Associated With Osteoarthritis.” NCT00374556 ↗

“using eszopiclone (Lunesta), a medication that promotes stable sleep” NCT01887691 ↗

“Subchronic (1-week) administration of 3mg Lunesta (eszopiclone)” NCT00414037 ↗

NCT00811746 ↗

NCT00460993 ↗

Known as Zopiclone s-form ChEMBL registry synonym — accepted as the source's own label CHEMBL1522 ↗
Action Activate “eszopiclone, a nonbenzodiazepine gaba-receptor agonist short-acting hypnotic” NCT00811746 ↗
Modality Small molecule — CHEMBL1522 ↗
Route Oral “Both groups will receive equal-appearing pills to be taken each night.” NCT00324896 ↗