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ClinicalTrials.gov public records Last synced Sep 25, 2026, 2:28 PM EDT

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Showing 1–7 of 7 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Conditions
Healthy
Interventions
tasimelteon, Rifampin, Ketoconazole
Drug
Lead sponsor
Vanda Pharmaceuticals
Industry
Eligibility
18 Years to 55 Years
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012
U.S. locations
1
States / cities
Springfield, Missouri
Conditions
Autism Spectrum Disorder, Sleep Disorder, Neurological Disorder, Sleep Disturbance
Interventions
Tasimelteon Oral Capsule, Tasimelteon Liquid Suspension
Drug
Lead sponsor
Vanda Pharmaceuticals
Industry
Eligibility
2 Years to 65 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
5
States / cities
San Jose, California • San Leandro, California • Santa Monica, California + 2 more
Conditions
Sleep Wake Disorders, Sleep Disorders, Circadian Rhythm, Chronobiology Disorders
Interventions
Tasimelteon, Placebo
Drug
Lead sponsor
Vanda Pharmaceuticals
Industry
Eligibility
18 Years to 75 Years
Enrollment
70 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2026
U.S. locations
11
States / cities
Los Angeles, California • Redwood City, California • Aurora, Colorado + 8 more
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Evaluating the Effects of Tasimelteon vs. Placebo on Jet Lag Type Insomnia

NCT03373201
Conditions
Jet Lag Type Insomnia
Interventions
Tasimelteon, Placebo
Drug
Lead sponsor
Vanda Pharmaceuticals
Industry
Eligibility
18 Years to 75 Years
Enrollment
320 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
12
States / cities
Little Rock, Arkansas • Alameda, California • San Diego, California + 9 more
Conditions
Smith-Magenis Syndrome, Circadian
Interventions
tasimelteon, placebo
Drug
Lead sponsor
Vanda Pharmaceuticals
Industry
Eligibility
3 Years to 65 Years
Enrollment
49 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2022
U.S. locations
4
States / cities
Santa Monica, California • Baltimore, Maryland • Chevy Chase, Maryland + 1 more
Conditions
Jet Lag Disorder
Interventions
Tasimelteon, Placebo
Drug
Lead sponsor
Vanda Pharmaceuticals
Industry
Eligibility
18 Years to 75 Years
Enrollment
25 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
3
States / cities
Alameda, California • Santa Monica, California • Chevy Chase, Maryland
Conditions
Healthy
Interventions
Tasimelteon Oral Capsule, Tasimelteon Oral Suspension
Drug
Lead sponsor
Vanda Pharmaceuticals
Industry
Eligibility
18 Years to 55 Years
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Springfield, Missouri