Independent directory Public ClinicalTrials.gov records United States
Clear filters
ClinicalTrials.gov public records Last synced Sep 5, 2026, 1:15 PM EDT

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

Showing 1–10 of 10 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Conditions
Narcolepsy
Interventions
HBS-201
Drug
Lead sponsor
Harmony Biosciences Management, Inc.
Industry
Eligibility
18 Years and older
Enrollment
46 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025
U.S. locations
15
States / cities
San Ramon, California • Brandon, Florida • Miami, Florida + 12 more
Conditions
Myotonic Dystrophy 1, Excessive Daytime Sleepiness
Interventions
Pitolisant Oral Tablet, Placebo oral tablet
Drug
Lead sponsor
Harmony Biosciences Management, Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
11
States / cities
Irvine, California • Aurora, Colorado • Tampa, Florida + 8 more
Conditions
Idiopathic Hypersomnia, Excessive Daytime Sleepiness
Interventions
Pitolisant
Drug
Lead sponsor
Harmony Biosciences Management, Inc.
Industry
Eligibility
18 Years and older
Enrollment
119 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
32
States / cities
Los Angeles, California • San Ramon, California • Brandon, Florida + 29 more
Conditions
Prader-Willi Syndrome
Interventions
Pitolisant tablet, Placebo tablet
Drug · Other
Lead sponsor
Harmony Biosciences Management, Inc.
Industry
Eligibility
6 Years and older
Enrollment
134 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2028
U.S. locations
23
States / cities
Los Angeles, California • Sacramento, California • San Diego, California + 16 more
Conditions
Idiopathic Hypersomnia
Interventions
HBS-301 tablet, Placebo
Drug
Lead sponsor
Harmony Biosciences Management, Inc.
Industry
Eligibility
18 Years and older
Enrollment
248 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
40
States / cities
Birmingham, Alabama • Peoria, Arizona • Redwood City, California + 36 more
Conditions
Narcolepsy Without Cataplexy, Narcolepsy With Cataplexy
Interventions
Pitolisant
Drug
Lead sponsor
Harmony Biosciences Management, Inc.
Industry
Eligibility
18 Years and older
U.S. locations
71
States / cities
Birmingham, Alabama • Cullman, Alabama • Phoenix, Arizona + 60 more
Conditions
Prader-Willi Syndrome
Interventions
Pitolisant oral tablets, Placebo oral tablet
Drug
Lead sponsor
Harmony Biosciences Management, Inc.
Industry
Eligibility
6 Years to 65 Years
Enrollment
65 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2026
U.S. locations
13
States / cities
San Diego, California • San Ramon, California • Santa Monica, California + 10 more
Conditions
Prader-Willi Syndrome
Interventions
Pitolisant
Drug
Lead sponsor
Harmony Biosciences Management, Inc.
Industry
Eligibility
7 Years and older
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2030
U.S. locations
1
States / cities
Morrisville, North Carolina
Conditions
EDS, Cataplexy, Fatigue, Narcolepsy
Interventions
HBS-301, Placebo
Drug · Other
Lead sponsor
Harmony Biosciences Management, Inc.
Industry
Eligibility
18 Years and older
Enrollment
258 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
51
States / cities
Birmingham, Alabama • Mobile, Alabama • Peoria, Arizona + 46 more
Conditions
Idiopathic Hypersomnia
Interventions
Open-label pitolisant, Double-blind placebo, Double-blind pitolisant
Drug
Lead sponsor
Harmony Biosciences Management, Inc.
Industry
Eligibility
18 Years and older
Enrollment
214 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
58
States / cities
Peoria, Arizona • Scottsdale, Arizona • Los Angeles, California + 53 more