Drugs / Eszopiclone
last change Jun 2026 re-read 2 minutes 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 · a red edge is where a trial was stopped

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
Phase 2 NCT06928766 May 2025 → May 2027 expected obstructive sleep apnea syndrome Flinders University Not yet 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 No outcome recorded
Phase 2 NCT04875364 Aug 2020 → Feb 2026 obstructive sleep apnea syndrome University of California, San Diego Completed No outcome recorded
Phase 2/31 trial
Phase 2/3 NCT00770510 Sep 2008 → May 2010 insomnia Eisai Inc. Completed No outcome recorded
Phase 314 trials
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 No outcome recorded
Phase 3 NCT00856973 May 2009 → Jul 2011 attention deficit-hyperactivity disorder, insomnia Sumitomo Pharma America, Inc. Completed No outcome recorded
Phase 3 NCT00857220 May 2009 → Oct 2011 attention deficit-hyperactivity disorder, insomnia Sumitomo Pharma America, Inc. Completed No outcome recorded
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 No outcome recorded
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 NCT00367965 Feb → Nov 2004 insomnia, rheumatoid arthritis Sumitomo Pharma America, Inc. Completed No outcome recorded
Phase 415 trials
Phase 4 NCT03937713 Dec 2019 → Sep 2024 insomnia VA Office of Research and Development Completed No outcome recorded
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 No outcome recorded
Phase 4 NCT00511134 Apr 2007 → Dec 2008 insomnia, nicotine dependence Yale University Terminated No outcome recorded
Phase 4 NCT00414037 Dec 2006 → Dec 2008 insomnia University of California, San Diego Terminated No outcome recorded
Phase 4 NCT00386334 Oct 2006 → Feb 2008 insomnia Sumitomo Pharma America, Inc. Completed No outcome recorded
Phase 4 NCT00813735 Sep 2006 → Mar 2009 insomnia Lehigh Center for Clinical Research Completed No outcome recorded
Phase not applicable7 trials
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 No outcome recorded
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
Also used as a comparator or background therapy in 22 trials
PhaseRegistry idDatesIndicationSponsorStatusOutcome
Phase 01 trial
Phase 0 NCT01102270 Comparator Jan → Aug 2009 obstructive sleep apnea syndrome Brigham and Women's Hospital Completed No outcome recorded
Phase 11 trial
Phase 1 NCT05349396 Comparator Apr 2022 Laboratorios Andromaco S.A. Completed No outcome recorded
Phase 1/21 trial
Phase 1/2 NCT05293600 Comparator Jul 2023 → Oct 2026 expected obstructive sleep apnea syndrome Brigham and Women's Hospital Recruiting No outcome recorded
Phase 22 trials
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
Phase 2/31 trial
Phase 2/3 NCT00515177 Comparator Aug 2007 → Jun 2009 insomnia University of Minnesota Completed No outcome recorded
Phase 31 trial
Phase 3 NCT03668041 Comparator Feb 2021 → Mar 2026 insomnia VA Office of Research and Development Completed No outcome recorded
Phase 410 trials
Phase 4 NCT07018557 Comparator Jun 2025 → Jun 2026 overdue hypertensive disorder, insomnia University of Sao Paulo Recruiting No outcome recorded
Phase 4 NCT06017921 Comparator Aug 2023 → Oct 2025 insomnia, obstructive sleep apnea syndrome University of Sao Paulo General Hospital Completed No outcome recorded
Phase 4 NCT02456532 Comparator Aug 2015 → Feb 2022 insomnia Henry Ford Health System Completed No outcome recorded
Phase 4 NCT01605253 Comparator Mar 2012 → Dec 2015 post-traumatic stress disorder Rush University Medical Center Completed No outcome recorded
Phase 4 NCT00612157 Comparator Jan → Jun 2008 obstructive sleep apnea syndrome Walter Reed Army Medical Center Completed No outcome recorded
Phase not applicable5 trials
NCT06452953 Comparator Sep 2020 → Oct 2023 insomnia Central South University Completed No outcome recorded
NCT02087488 Background Mar 2014 → Dec 2015 insomnia Chengdu University of Traditional Chinese Medicine Completed No outcome recorded
NCT01633827 Comparator Aug 2012 → Dec 2014 obstructive sleep apnea syndrome Brigham and Women's Hospital Completed No outcome recorded
NCT00811746 Comparator Dec 2008 → Sep 2010 obstructive sleep apnea syndrome Southern California Institute for Research and Education Completed No outcome recorded
NCT00594087 Comparator Dec 2006 → May 2008 relapsing-remitting multiple sclerosis, sleep disorder, initiating and maintaining sleep University of Vermont Completed No outcome recorded

Press releases naming this drug 1 release

DateIssuerRelease
2014-04-15 Teva Branded Pharmaceutical Products R&D, Inc. Teva Announces Launch of Generic Lunesta® Tablets in the United States tevapharm.com

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

NCT00365976

NCT05953610

NCT00645944

NCT00368030

NCT00616655

NCT01710631

NCT00392041

NCT00515177

NCT06452953

NCT00374556

NCT00511134

NCT00812214

NCT00324896

NCT04639193

NCT00685269

NCT00893269

NCT00368056

NCT00367965

NCT00822679

NCT00235508

NCT04875364

NCT00368160

NCT00628914

NCT00386334

NCT06017921

NCT01102270

NCT00813735

NCT00435279

NCT01641900

NCT00857220

NCT02087488

NCT01887691

NCT00247624

NCT01100164

NCT00374192

NCT00770510

NCT00724282

NCT02456532

NCT03668041

NCT00352144

NCT00555750

NCT00781482

NCT00833547

NCT00826111

NCT07018557

NCT00120250

NCT00889200

NCT07332442

NCT00900159

NCT00365261

NCT00612157

NCT00856973

NCT01605253

NCT05293600

NCT00366093

NCT00414037

NCT05951023

NCT05349396

NCT00594087

NCT06928766

NCT00770692

NCT03937713

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