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ClinicalTrials.gov public records Last synced May 21, 2026, 7:18 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 1–4 of 4 matching trials from the live ClinicalTrials.gov search.
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Conditions
Irregular Sleep-Wake Rhythm Disorder
Interventions
Lemborexant 2.5 mg, Lemborexant 5 mg, Lemborexant 10 mg, Lemborexant 15 mg, Lemborexant-matched placebo
Drug
Lead sponsor
Eisai Inc.
Industry
Eligibility
60 Years to 90 Years
Enrollment
63 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2020
U.S. locations
37
States / cities
Little Rock, Arkansas • Rogers, Arkansas • Costa Mesa, California + 30 more
Source: ClinicalTrials.gov public record
Updated May 16, 2021 · Synced May 21, 2026, 7:18 PM EDT
Terminated No phase listed Observational Accepts healthy volunteers
Conditions
Shift-Work Sleep Disorder, Shift Work Type Circadian Rhythm Sleep Disorder, Sleep Disorders, Circadian Rhythm, Sleep Disorders, Intrinsic, Advanced Sleep Phase Syndrome (ASPS), Advanced Sleep Phase Syndrome, Advanced Sleep Phase, Delayed Sleep Phase, Delayed Sleep Phase Syndrome, Non-24 Hour Sleep-Wake Disorder, Irregular Sleep-Wake Syndrome
Interventions
Short Nap Intervention, No Nap Intervention
Behavioral
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years to 50 Years
Enrollment
5 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2025
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 2, 2025 · Synced May 21, 2026, 7:18 PM EDT
Conditions
Irregular Sleep Wake Rhythm Disorder
Interventions
Non-interventional
Other
Lead sponsor
Eisai Inc.
Industry
Eligibility
18 Years to 90 Years
Enrollment
37 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
6
States / cities
Costa Mesa, California • San Diego, California • Miami, Florida + 3 more
Source: ClinicalTrials.gov public record
Updated Oct 26, 2020 · Synced May 21, 2026, 7:18 PM EDT
Terminated No phase listed Observational Accepts healthy volunteers
Conditions
Sleep Wake Disorders, Sleep Disorders, Circadian Rhythm, Sleep Disorders, Intrinsic, Advanced Sleep Phase Syndrome (ASPS), Advanced Sleep Phase Syndrome, Advanced Sleep Phase, Delayed Sleep Phase, Delayed Sleep Phase Syndrome, Non-24 Hour Sleep-Wake Disorder, Irregular Sleep-Wake Syndrome, Shift-Work Sleep Disorder, Shift Work Type Circadian Rhythm Sleep Disorder, Delayed Phase Sleep Syndrome
Interventions
sleep-wake timing, constant routine
Behavioral
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years to 70 Years
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2025
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 2, 2025 · Synced May 21, 2026, 7:18 PM EDT