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Terminated Phase 3 Interventional Results available

Efficacy and Safety of SYNB1934 in Patients With PKU (SYNPHENY-3)

ClinicalTrials.gov ID: NCT05764239

Public ClinicalTrials.gov record NCT05764239. 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, 5:50 PM 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, Double-blind, Placebo-controlled, Randomized Withdrawal Study to Evaluate the Efficacy and Safety of SYNB1934 in Patients With PKU (SYNPHENY-3)

Study identification

NCT ID
NCT05764239
Recruitment status
Terminated
Study type
Interventional
Phase
Phase 3
Lead sponsor
Synlogic
Industry
Enrollment
35 participants

Conditions and interventions

Interventions

  • SYNB1934v1 Drug
  • Placebo Drug

Drug

Eligibility (public fields only)

Age range
18 Years and older
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
Jul 4, 2023
Primary completion
Mar 14, 2024
Completion
Mar 14, 2024
Last update posted
Jun 19, 2024

2023 – 2024

United States locations

U.S. sites
14
U.S. states
10
U.S. cities
14
Facility City State ZIP Site status
Science 37 Culver City California 90230
Children's Hospital Orange County Orange California 92868
Stanford University, Department of Pediatrics Palo Alto California 94304
University of Colorado Children's Hospital Aurora Colorado 80045
University of Florida - Gainesville Gainesville Florida 32610
Ann & Robert H. Lurie Children's Hospital of Chicago, Pediatrics Chicago Illinois 60611-2991
Massachusetts General Hospital, Department of Pediatrics Boston Massachusetts 02114
Oregon Health and Science University Department of Molecular and Medical Genetics Portland Oregon 97239
Children's Hospital of Philadelphia Philadelphia Pennsylvania 19104
University of Pittsburgh Medical Center - Children's Hospital of Pittsburgh Pittsburgh Pennsylvania 15224
Medical University of South Carolina, Pediatrics Charleston South Carolina 29425
Division of Medical Genetics-Pediatrics, Vanderbilt University Medical Center Nashville Tennessee 37232
UT Southwestern Medical Center Dallas Texas 75390
McGovern Medical School/Memorial Hermann Hospital Houston Texas 77030

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 7 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT05764239, 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 Jun 19, 2024 · Synced Jul 22, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT05764239 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →