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NCT06366464PHASE3Recruiting

A Study of Pitolisant in Patients With Prader-Willi Syndrome

Harmony Biosciences Management, Inc.

Start Date

5/28/2024

Completion Date

7/1/2027

Summary

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

Detailed Description

The study will consist of an up to 45-day Screening/Baseline Period, a Double-Blind Treatment Period, and an optional Open-Label Extension Period. After completion of all Baseline assessments, patients who meet all eligibility criteria will be randomized 1:1 to receive once daily pitolisant or matching placebo. During the Double-Blind Treatment Period, in-person visits will be at Day 29, Day 57, and Day 77. Patients who do not elect to enter the Open-Label Extension Period will have follow-up visits 15 days and 30 days after the final dose of study drug. During the optional Open-Label Extension Period, in-person visits will be at Day 113, Day 260, and Day 441. Patients will have follow-up visits 15 days and 30 days after the final dose of pitolisant.

Eligibility Criteria

Age Range: 6 years to No maximum

Inclusion Criteria: * Genetically confirmed diagnosis of PWS * Excessive daytime sleepiness * Has a consistent parent/caregiver (preferably the same person throughout the study) who is willing and able to complete the required study assessments. * In the opinion of the Investigator, the patient/parent(s)/caregiver(s)/legal guardian(s) are capable of understanding and complying with the requirements of the protocol and administration of oral study drug. Exclusion Criteria: * Has a diagnosis of sleep apnea (OSA, CSA) that is not adequately controlled * Has a diagnosis of hypersomnia due to another sleep/medical disorder * Participation in an interventional research study involving another investigational medication, device, or behavioral treatment within 30 days or 5 half-lives (whichever is longer) of the investigational medication prior to Screening

Interventions

DRUG

Pitolisant tablet

OTHER

Placebo tablet

Interested in This Trial?

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Conditions

Prader-Willi Syndrome

Locations

Santa Monica Clinical Trials

Los Angeles, California 90025

United States

Center of Excellence in Diabetes and Endocrinology

Sacramento, California 95821-2123

United States

Rady Children's Hospital - Scan Diego

San Diego, California 92123

United States

Colorado Children's Hospital

Aurora, Colorado 80045

United States

Nemours Children's Hospital

Wilmington, Delaware 19803-3607

United States

Atlanta Diabetes Associates

Atlanta, Georgia 30318

United States

Emory University School of Medicine

Atlanta, Georgia 30322

United States

Rare Disease Research

Atlanta, Georgia 30329

United States

Ann And Robert H Lurie Children's Hospital of Chicago

Chicago, Illinois 60611

United States

Riley Children's Hospital

Indianapolis, Indiana 46202

United States

Johns Hopkins Hospital

Baltimore, Maryland 21224

United States

Mayo Clinic-PPDS

Rochester, Minnesota 55905

United States

Maimonides Medical Center

Brooklyn, New York 11219

United States

Montefiore Medical Center

The Bronx, New York 10467

United States

Science 37 (at-home option)

Morrisville, North Carolina 27560

United States

CTI Clinical Research Center

Cincinnati, Ohio 45212

United States

Center for Human Genetics

Cleveland, Ohio 441016

United States

Texas Children's Hospital

Houston, Texas 77030

United States

Road Runner Research

San Antonio, Texas 78249-3539

United States

Texas Valley Clinical Research

Weslaco, Texas 78596

United States

Childrens Hospital of Wisconsin

Milwaukee, Wisconsin 53226

United States

Queensland Children's Hospital

Brisbane, Queensland

Australia

Royal Prince Alfred Hospital

Camperdown,

Australia

Sydney Children's Hospital

Randwick,

Australia

Children's Hospital at Westmead

Westmead,

Australia

UZ Brussels

Jette,

Belgium

AMNDX Inc.

Thornhill, Ontario

Canada

Jodha Tishon Inc.

Toronto, Ontario

Canada

Aarhus University Hospital

Aarhus,

Denmark

Rigshospitalet

Copenhagen,

Denmark

CHU d'Angers

Angers,

France

CHU de Toulouse-Hôpital Des Enfants

Toulouse,

France

University Hospital Essen

Essen,

Germany

Azienda Ospedaliero Universitaria A Meyer

Florence,

Italy

Istituto G Gaslini Ospedale Pediatrico IRCCS - INCIPIT - PIN

Genova,

Italy

Ospedale San Raffaele S.r.l. - PPDS

Milan,

Italy

Azienda Ospedale Università Padova - Dipartimento Salute della Donna e del Bambino - INCIPIT - PIN

Padova,

Italy

Ospedale Pediatrico Bambino Gesù IRCCS

Roma,

Italy

IRCCS Materno Infantile Burlo Garofolo - INCIPIT - PIN

Trieste,

Italy

Samodzielny Publiczny Szpital Kliniczny

Szczecin,

Poland

Uniwersytecki Szpital Kliniczny im. Jana Mikulicza-Radeckiego we Wroclawiu-Chalubinskiego 2-2a

Wroclaw,

Poland

Institutul National de Endocrinologie C. I. Parhon

Bucharest,

Romania

Institutul National de Endocrinologie C. I. Parhon

Bucharest,

Romania

National Clinical Center for Children Neurorehabilitation "Dr. Nicolae Robanescu"

Bucharest,

Romania

Louis Turcanu Emergency Clinical Hospital for Children

Timișoara,

Romania

Corporacio Sanitaria Parc Tauli, Sabadell

Barcelona,

Spain

Hospital Sant Joan de Deu

Barcelona,

Spain

Hospital Universitario 12 de Octubre

Madrid,

Spain

Universitario Virgen de la Victoria

Málaga,

Spain

Karolinska Universitetssjukhuset Solna

Solna,

Sweden

Fulbourn Hospital

Cambridge, England

United Kingdom

Hull Royal Infirmary

Hull, England

United Kingdom

Ninewells Hospital - PPDS

Dundee, Scotland

United Kingdom

Royal Hospital for Children and Young People

Edinburgh, Scotland

United Kingdom