Independent directory Public ClinicalTrials.gov records United States
ClinicalTrials.gov record
Completed Phase 3 Interventional Results available

A Study of PTC923 in Participants With Phenylketonuria

ClinicalTrials.gov ID: NCT05099640

Public ClinicalTrials.gov record NCT05099640. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Jul 22, 2026, 10:30 AM EDT

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

Official title

A Phase 3 Study of PTC923 in Subjects With Phenylketonuria

Study identification

NCT ID
NCT05099640
Recruitment status
Completed
Study type
Interventional
Phase
Phase 3
Lead sponsor
PTC Therapeutics
Industry
Enrollment
157 participants

Conditions and interventions

Interventions

  • PTC923 Drug
  • Placebo Drug

Drug

Eligibility (public fields only)

Age range
Not listed
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Sep 29, 2021
Primary completion
Apr 2, 2023
Completion
May 2, 2023
Last update posted
Jan 9, 2024

2021 – 2023

United States locations

U.S. sites
12
U.S. states
10
U.S. cities
12
Facility City State ZIP Site status
Stanford University Center for Academic Medicine Stanford California 94304
University of Colorado and the Children's Hospital CO Aurora Colorado 80045
UF College of Medicine, Department of Pediatrics Division of Genetics and Metabolism Gainesville Florida 32608
Indiana University School of Medicine Indianapolis Indiana 46202
Boston Children's Hospital Boston Massachusetts 02115
Icahn School of Medicine at Mount Sinai (ISMMS) New York New York 01009
The Children's Hospital of Philadelphia Philadelphia Pennsylvania 19104
UPMC Children's Hospital of Pittsburgh Pittsburgh Pennsylvania 15224
Children's Medical Center Dallas Dallas Texas 75235
University of Texas Health Science Center of Texas Houston Texas 77030
University of Utah, Division of Medical Genetics (pediatric and adult clinic) Salt Lake City Utah 84108
Medical College of Wisconsin Milwaukee Wisconsin 53226

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

Non-U.S. locations

This page focuses on the U.S. directory. The official record also lists 31 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT05099640, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Jan 9, 2024 · Synced Jul 22, 2026

Related: full search, browse by condition, browse by drug or therapy, browse by sponsor, browse by U.S. city.

Open the official record

The complete protocol, eligibility criteria, and contact information for NCT05099640 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →