← Eichor
Study identifier: NCT06366464 Synced from ClinicalTrials.gov · July 28, 2026
● Recruiting

A Study of Pitolisant in Patients With Prader-Willi Syndrome

Condition: Prader-Willi Syndrome  ·  Sponsor: Harmony Biosciences Management, Inc.

PhasePhase 3
Planned participants134
Who can joinAll sexes, 6 Years to no upper limit
Healthy volunteersNo

About this study

This is a Phase 3, randomized, double-blind, placebo-controlled, multicenter, global clinical study to assess the efficacy and safety of pitolisant in patients living with Prader-Willi syndrome. The primary objective of this study is to evaluate the efficacy of pitolisant in treating excessive daytime sleepiness (EDS) in patients ≥6 years of age with Prader-Willi syndrome. Secondary objectives include assessing the impact of pitolisant on: Irritable and disruptive behaviors Hyperphagia Other behavioral problems including social withdrawal, stereotypic behavior, hyperactivity/noncompliance, and inappropriate speech

This description comes directly from the study's public registry record.

Talk to the study team

Ann Adee  ·  773-383-6258  ·  clinicaltrials@harmonybiosciences.com

Linnea Ryan  ·  clinicaltrials@harmonybiosciences.com

Always discuss trial participation with your own doctor first.

Locations (54)

Santa Monica Clinical TrialsLos Angeles, California, United StatesRecruiting
Center of Excellence in Diabetes and EndocrinologySacramento, California, United StatesRecruiting
Rady Children's Hospital - Scan DiegoSan Diego, California, United StatesRecruiting
Colorado Children's HospitalAurora, Colorado, United StatesRecruiting
Nemours Children's HospitalWilmington, Delaware, United StatesRecruiting
Atlanta Diabetes AssociatesAtlanta, Georgia, United StatesWithdrawn
Emory University School of MedicineAtlanta, Georgia, United StatesRecruiting
Rare Disease ResearchAtlanta, Georgia, United StatesWithdrawn
Ann And Robert H Lurie Children's Hospital of ChicagoChicago, Illinois, United StatesRecruiting
Riley Children's HospitalIndianapolis, Indiana, United StatesRecruiting
Johns Hopkins HospitalBaltimore, Maryland, United StatesRecruiting
Mayo Clinic-PPDSRochester, Minnesota, United StatesRecruiting

+ 42 more locations — full list on the registry record.

Follow this study

Get one email when the public record changes — results posted, or the study's status changes. Nothing else, ever.

We email about this public record only. Unsubscribe anytime with one click. Never medical advice.

Is this your study? This page was generated automatically from the public registry record. Sponsors can claim it — free — to add branding and verified contact routing. Claim this page →

This page is independently generated by Eichor from the public ClinicalTrials.gov record and re-synced daily. It is not the sponsor's official website unless claimed. Nothing here is medical advice; eligibility is always determined by the study team — talk to your own doctor first.

Source record: clinicaltrials.gov/study/NCT06366464