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Prader-Willi Syndrome

9
Pipeline Programs
18
Companies
26
Clinical Trials
4 recruiting
0
Approved Products

Pipeline by Development Stage

Preclinical
Phase 1
Phase 1/2
Phase 2
Phase 2/3
Phase 3
On Market
0
1
0
5
0
2
1
Early DiscoveryClinical DevelopmentMarket

Drug Modality Breakdown

Peptide
5100%
+ 21 programs with unclassified modality

Competitive Landscape

17 companies ranked by most advanced pipeline stage

Grace Medical
Grace MedicalTN - Memphis
1 program
1
TirzepatidePhase 4Peptide1 trial
Active Trials
NCT06901245Recruiting36Est. Dec 2026
UNION therapeutics
UNION therapeuticsDenmark - Hellerup
1 program
1
Recombinant Human Growth HormonePhase 31 trial
Active Trials
NCT03554031Unknown30Est. Jan 2020
Pfizer
PfizerNEW YORK, NY
1 program
1
somatropin - GH naïve pediatric cohortPhase 31 trial
Active Trials
NCT04697381Completed33Est. Apr 2024
ConSynance Therapeutics
2 programs
1
1
CSTI-500Phase 21 trial
CSTI-500Phase 11 trial
Active Trials
NCT05504395Completed10Est. Feb 2023
NCT07348601Recruiting12Est. Jun 2027
Colorado Therapeutics
Colorado TherapeuticsCO - Louisville
1 program
1
ARD-101Phase 21 trial
Active Trials
NCT05153434Completed19Est. Sep 2024
Aardvark Therapeutics
Aardvark TherapeuticsCA - San Diego
1 program
1
ARD-101Phase 2
Bright Minds Biosciences
1
BMB-101Phase 21 trial
Active Trials
NCT07266324Not Yet Recruiting16Est. Mar 2027
Neuren Pharmaceuticals
Neuren PharmaceuticalsAustralia - Camberwell
1 program
1
NNZ-2591Phase 22 trials
Active Trials
NCT07593391Recruiting180Est. Nov 2028
NCT05879614Withdrawn0Est. Jun 2025
Soleno Therapeutics
Soleno TherapeuticsREDWOOD CITY, CA
5 programs
VYKAT XRN/A1 trial
DCCRPHASE_31 trial
DCCRPHASE_31 trial
DCCRPHASE_31 trial
DCCRPHASE_31 trial
Active Trials
NCT07450664Enrolling By Invitation200Est. Mar 2028
NCT03714373Completed115Est. Aug 2023
NCT05701774Active Not Recruiting83Est. Jun 2028
+2 more trials
Harmony Biosciences
Harmony BiosciencesPLYMOUTH MEETING, PA
3 programs
Pitolisant oral tabletsPHASE_21 trial
PitolisantPHASE_31 trial
Pitolisant tabletPHASE_31 trial
Active Trials
NCT04257929Completed65Est. Jan 2026
NCT07219485Enrolling By Invitation150Est. Aug 2030
NCT06366464Recruiting134Est. Jul 2027
Human BioSciences
Human BioSciencesWV - Martinsburg
2 programs
Group 1N/A1 trial
TopiramateN/A1 trial
Active Trials
NCT00375089Completed392Est. Jan 2014
NCT00065923Completed10
Rhythm Pharmaceuticals
2 programs
SetmelanotidePHASE_2Peptide1 trial
SetmelanotidePHASE_2Peptide1 trial
Active Trials
NCT02311673Completed40Est. Oct 2016
NCT06772597Active Not Recruiting18Est. Oct 2027
Angeles Therapeutics
Angeles TherapeuticsCA - Los Angeles
1 program
ExenatideN/APeptide1 trial
Active Trials
NCT01444898Completed10Est. Dec 2013
Novo Nordisk
Novo NordiskBAGSVAERD DENMARK, Denmark
1 program
Norditropin SimpleXxN/A1 trial
Active Trials
NCT00372125Completed46Est. Mar 2010
Sandoz
SandozAustria - Kundl
1 program
OctreotideN/APeptide1 trial
Active Trials
NCT00399893Terminated5Est. Sep 2010
Integrated Biosciences
Integrated BiosciencesCA - San Carlos
1 program
Safe and Sound ProtocolN/A1 trial
Active Trials
NCT03871751Terminated10Est. Dec 2019
Gedeon Richter
Gedeon RichterHungary - Budapest
1 program
RGH-706PHASE_21 trial
Active Trials
NCT05322096Completed39Est. Apr 2024

Trial Timeline

Clinical trial activity over time

2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
Grace MedicalTirzepatide
Neuren PharmaceuticalsNNZ-2591
Harmony BiosciencesPitolisant
Harmony BiosciencesPitolisant tablet
Soleno TherapeuticsDCCR
Pfizersomatropin - GH naïve pediatric cohort
Soleno TherapeuticsDCCR
Soleno TherapeuticsDCCR
Soleno TherapeuticsDCCR
UNION therapeuticsRecombinant Human Growth Hormone
ConSynance TherapeuticsCSTI-500
Bright Minds BiosciencesBMB-101
Rhythm PharmaceuticalsSetmelanotide
Neuren PharmaceuticalsNNZ-2591
Gedeon RichterRGH-706

Showing 15 of 26 trials with date data

Clinical Trials (26)

Total enrollment: 1,780 patients across 26 trials

Tirzepatide in PWS, HO and GNSO

Start: May 2025Est. completion: Dec 202636 patients
Phase 4Recruiting

An Open-label Study of NNZ-2591 in Pediatric Participants With Phelan-McDermid Syndrome

Start: May 2026Est. completion: Nov 2028180 patients
Phase 3Recruiting

A Study of Pitolisant in Participants With Prader-Willi Syndrome

Start: Aug 2025Est. completion: Aug 2030150 patients
Phase 3Enrolling By Invitation

A Study of Pitolisant in Patients With Prader-Willi Syndrome

Start: May 2024Est. completion: Jul 2027134 patients
Phase 3Recruiting

Open-Label Extension Study of DCCR in Patients With Prader-Willi Syndrome

Start: Jan 2023Est. completion: Jun 202883 patients
Phase 3Active Not Recruiting
NCT04697381Pfizersomatropin - GH naïve pediatric cohort

Study of the Efficacy and Safety of Somatropin in Japanese Participants With PWS

Start: Feb 2021Est. completion: Apr 202433 patients
Phase 3Completed

An Open-Label Study of DCCR Tablet in Patients With PWS

Start: Oct 2019Est. completion: Oct 20190
Phase 3Withdrawn

Open-Label Extension Study of DCCR in PWS Followed by Double-Blind, Placebo-Controlled, Randomized Withdrawal Period

Start: Oct 2018Est. completion: Aug 2023115 patients
Phase 3Completed

A Study of Diazoxide Choline in Patients With Prader-Willi Syndrome

Start: May 2018Est. completion: May 2020127 patients
Phase 3Completed
NCT03554031UNION therapeuticsRecombinant Human Growth Hormone

A Study to Evaluate the Efficacy and Safety of Recombinant Human Growth Hormone Injection in Patients With Prader-Willi Syndrome

Start: Apr 2018Est. completion: Jan 202030 patients
Phase 3Unknown

A Study of CSTI-500 in Patients With Prader-Willi Syndrome

Start: May 2026Est. completion: Jun 202712 patients
Phase 2Recruiting

A 2-Part Study to Assess Efficacy, Safety and Tolerability of BMB-101 for the Treatment of Patients With Prader-Willi Syndrome.

Start: Jan 2026Est. completion: Mar 202716 patients
Phase 2Not Yet Recruiting

A Study of Setmelanotide in Patients With Prader-Willi Syndrome

Start: Mar 2025Est. completion: Oct 202718 patients
Phase 2Active Not Recruiting

An Open-Label Study of Oral NNZ-2591 in Prader-Willi Syndrome (PWS-001)

Start: Sep 2023Est. completion: Jun 20250
Phase 2Withdrawn

Study to Evaluate Efficacy, Safety, and Tolerability of RGH-706 in Prader-Willi Syndrome

Start: Sep 2022Est. completion: Apr 202439 patients
Phase 2Completed

A Study of Oral ARD-101 in Patients With Prader-Willi Syndrome

Start: May 2022Est. completion: Sep 202419 patients
Phase 2Completed
NCT04257929Harmony BiosciencesPitolisant oral tablets

A Phase 2 Study to Evaluate the Safety and Efficacy of Pitolisant in Patients With Prader-Willi Syndrome, Followed by an Open Label Extension

Start: Dec 2020Est. completion: Jan 202665 patients
Phase 2Completed

Phase 2 Trial to Evaluate Safety and Efficacy of Setmelanotide (RM-493) in Obese Participants With Prader-Willi Syndrome

Start: Mar 2015Est. completion: Oct 201640 patients
Phase 2Completed

A Pharmacokinetic and Safety Study of CSTI-500 in Subjects With Prader-Willi Syndrome

Start: Nov 2022Est. completion: Feb 202310 patients
Phase 1Completed

Observational Study of VYKAT™ XR in Patients With Prader-Willi Syndrome

Start: Nov 2025Est. completion: Mar 2028200 patients
N/AEnrolling By Invitation
NCT03871751Integrated BiosciencesSafe and Sound Protocol

Home-based SSP on Individuals With PWS

Start: Apr 2019Est. completion: Dec 201910 patients
N/ATerminated

Effects of Exenatide on Overweight Adolescents With Prader-Willi Syndrome

Start: Mar 2012Est. completion: Dec 201310 patients
N/ACompleted

Octreotide Therapy in Children and Young Adults With Prader-Willi Syndrome (PWS)

Start: Dec 2006Est. completion: Sep 20105 patients
N/ATerminated

Characteristics of Prader-Willi Syndrome and Early-onset Morbid Obesity

Start: Sep 2006Est. completion: Jan 2014392 patients
N/ACompleted
NCT00372125Novo NordiskNorditropin SimpleXx

Nordic Study on the Effects of Growth Hormone (Norditropin SimpleXx) Treatment in Adults With Prader-Willi Syndrome

Start: Apr 2005Est. completion: Mar 201046 patients
N/ACompleted

Treatment of Self-Injurious Behavior in Individuals With Prader-Willi Syndrome

Start: Jul 200210 patients
N/ACompleted

Phase Legend

PreclinicalLab & animal studies
Phase 1Safety & dosing
Phase 2Efficacy testing
Phase 3Large-scale trials
On MarketApproved & available

Key Insights

2 late-stage (Phase 3) programs, potential near-term approvals
4 actively recruiting trials targeting 1,780 patients
18 companies competing in this space

The information on this page is for informational purposes only and should not be used as a substitute for professional medical advice. Drug information is sourced from FDA, DailyMed, and other government databases. Adverse event data from FAERS does not establish causation. Always consult a healthcare professional for medical decisions.