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Terminated Phase 1 Interventional

Safety and Efficacy of HMI-103 in Participants With Classical PKU Due to PAH Deficiency

ClinicalTrials.gov ID: NCT05222178

Public ClinicalTrials.gov record NCT05222178. 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 Sep 3, 2026, 4:59 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 1, Open-Label, Dose-Escalation Study to Evaluate the Safety and Efficacy of HMI-103 Administered Intravenously in Adult Participants With Classical PKU Due to PAH Deficiency

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

This is an open-label, sequential ascending dose-escalation, Phase 1 study to evaluate the safety and efficacy of a single intravenous (I.V.) administration of HMI-103, a gene editing development candidate, in adult participants aged 18 to 55 years, inclusive, with classical PKU due to PAH deficiency who have uncontrolled disease despite Phe restricted dietary management.

Study identification

NCT ID
NCT05222178
Recruitment status
Terminated
Study type
Interventional
Phase
Phase 1
Lead sponsor
Homology Medicines, Inc
Industry
Enrollment
3 participants

Conditions and interventions

Eligibility (public fields only)

Age range
18 Years to 55 Years
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
Jun 2, 2022
Primary completion
Sep 13, 2023
Completion
Sep 13, 2023
Last update posted
Oct 9, 2023

2022 – 2023

United States locations

U.S. sites
2
U.S. states
2
U.S. cities
2
Facility City State ZIP Site status
The Community Health Clinic Topeka Indiana 46571
Clinic for Special Children Lancaster Pennsylvania 17579

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

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT05222178, 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 Oct 9, 2023 · Synced Sep 3, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT05222178 live on ClinicalTrials.gov.

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