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Completed Phase 4 Interventional Results available

To Evaluate the Safety of Long-term Use of HPN-100 in the Management of Urea Cycle Disorders (UCDs)

ClinicalTrials.gov ID: NCT01257737

Public ClinicalTrials.gov record NCT01257737. 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 Oct 21, 2026, 5:35 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

Long Term Use of HPN-100 in Urea Cycle Disorders

Brief summary

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

This was an open-label, long-term safety study of HPN-100 (RAVICTI; glycerol phenylbutyrate) in participants with a urea cycle disorder (UCD) who completed the safety extensions of HPN-100-005 (NCT00947544; HPN-100-005SE), HPN-100-006 (NCT00947297; HPN-100-007), or HPN-100-012 (NCT01347073; HPN-100-012SE). The initial studies were 1- to 2-week crossover studies, and their associated safety extensions were 12-month, open-label studies. All participants who completed the initial studies were eligible to enroll in the associated safety extension studies, and new participants were also permitted to enroll directly into the safety extension studies.

Study identification

NCT ID
NCT01257737
Recruitment status
Completed
Study type
Interventional
Phase
Phase 4
Lead sponsor
Amgen
Industry
Enrollment
88 participants

Conditions and interventions

Interventions

Drug

Eligibility (public fields only)

Age range
1 Year 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
Oct 4, 2010 (Actual)
Primary completion
Feb 16, 2017 (Actual)
Completion
Feb 16, 2017 (Actual)
Last update posted
Aug 22, 2024

2010 – 2017

United States locations

U.S. sites
15
U.S. states
13
U.S. cities
15
Facility City State ZIP Site status
UCLA Pediatrics/Genetics Los Angeles California 90095 —
Stanford University School of Medicine Palo Alto California 94305 —
Denver Children's Hospital Aurora Colorado 80045 —
Children's National Medical Center Washington D.C. District of Columbia 20010 —
Maine Medical Center Portland Maine 04102 —
University of Minnesota Medical Center Minneapolis Minnesota 55454 —
Mount Sinai School of Medicine New York New York 10029 —
University Hospitals Case Medical Center Cleveland Ohio 44106 —
Nationwide Children's Hospital Columbus Ohio 43205 —
Oregon Health & Science University Portland Oregon 97239 —
Children's Hospital of Pittsburg of UPMC Pittsburgh Pennsylvania 15224 —
Baylor College of Medicine Houston Texas 77030 —
University of Utah Salt Lake City Utah 84112 —
Seattle Children's Hospital Seattle Washington 98105 —
Children's Hospital 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 1 non-U.S. site.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT01257737, 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 Aug 22, 2024 · Synced Oct 21, 2026

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Open the official record

The complete public registry record, listed eligibility criteria, and available contact information for NCT01257737 live on ClinicalTrials.gov.

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