ClinicalTrials.gov record
Completed Phase 1Phase 2 Interventional Results available

Safety and Dose-Finding Study of DTX301 (scAAV8OTC) in Adults With Late-Onset Ornithine Transcarbamylase (OTC) Deficiency

ClinicalTrials.gov ID: NCT02991144

Public ClinicalTrials.gov record NCT02991144. 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 May 8, 2026, 4:56 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 1/2, Open-Label Safety and Dose-Finding Study of Adeno-Associated Virus (AAV) Serotype 8 (AAV8)-Mediated Gene Transfer of Human Ornithine Transcarbamylase (OTC) in Adults With Late-Onset OTC Deficiency

Study identification

NCT ID
NCT02991144
Recruitment status
Completed
Study type
Interventional
Phase
Phase 1, Phase 2
Lead sponsor
Ultragenyx Pharmaceutical Inc
Industry
Enrollment
16 participants

Conditions and interventions

Interventions

  • Prophylactic Corticosteroid Taper Regimen Drug
  • Reactive Corticosteroid Taper Regimen Drug
  • scAAV8OTC Genetic

Drug · Genetic

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 30, 2017
Primary completion
Dec 15, 2021
Completion
Dec 15, 2021
Last update posted
Jan 25, 2023

2017 – 2021

United States locations

U.S. sites
4
U.S. states
4
U.S. cities
4
Facility City State ZIP Site status
The Children's Hospital Colorado Aurora Colorado 80045
Boston Children's Hospital Boston Massachusetts 02115
Icahn School of Medicine at Mount Sinai New York New York 10029-6508
University Hospital Cleveland Medical Center/Case Western Reserve University Cleveland Ohio 44106

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 5 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT02991144, 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 25, 2023 · Synced May 8, 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 NCT02991144 live on ClinicalTrials.gov.

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