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Completed Phase 2Phase 3 Interventional Results available

Study Investigating a PEGylated Recombinant Factor VIII (BAX 855) for Hemophilia A (PROLONG-ATE Study)

ClinicalTrials.gov ID: NCT01736475

Public ClinicalTrials.gov record NCT01736475. 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 25, 2026, 5:47 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 2/3, Multi-Center, Open Label Study of Efficacy, Safety, and Pharmacokinetics of PEGylated Recombinant Factor VIII (BAX 855) Administered for Prophylaxis and Treatment of Bleeding in Previously Treated Patients With Severe Hemophilia A

Brief summary

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

To assess efficacy and safety, including immunogenicity of BAX 855 administered as prophylaxis and as on-demand therapy in adult and adolescent (12-65 years) previously treated patients (PTPs) with severe hemophilia A To determine the pharmacokinetic (PK) parameters of BAX 855.

Study identification

NCT ID
NCT01736475
Recruitment status
Completed
Study type
Interventional
Phase
Phase 2, Phase 3
Lead sponsor
Baxalta now part of Shire
Industry
Enrollment
159 participants

Conditions and interventions

Eligibility (public fields only)

Age range
12 Years to 65 Years
Sex
Male
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
Jan 31, 2013 (Actual)
Primary completion
Jul 17, 2014 (Actual)
Completion
Jul 17, 2014 (Actual)
Last update posted
May 20, 2021

2013 – 2014

United States locations

U.S. sites
17
U.S. states
14
U.S. cities
17
Facility City State ZIP Site status
University of Colorado Aurora Colorado 80045 —
University of Florida, College of Medicine Gainesville Florida 32610 —
Children's Healthcare of Atlanta Atlanta Georgia 30322 —
Bleeding and Clotting Disorders Institute Peoria Illinois 61614 —
University of Kentucky Medical Center Lexington Kentucky 40504 —
University of Louisville Hospital Louisville Kentucky 40202 —
Tulane University Medical School New Orleans Louisiana 70124 —
Children's Mercy Hospitals & Clinics Kansas City Missouri 66211 —
Weill Cornell Medical College-New York Presbyterian Hospital New York New York 10065 —
University of North Carolina Chapel Hill Chapel Hill North Carolina 27599 —
Duke University Medical Center Durham North Carolina 27710 —
Cincinnati Children's Hospital Medical Center Cincinnati Ohio 45229 —
The Cleveland Clinic Foundation Cleveland Ohio 44195 —
Penn State Milton S. Hershey Medical Center Hershey Pennsylvania 17033 —
Palmetto Health Columbia South Carolina 29203 —
University of Utah Health Sciences Center Salt Lake City Utah 84132 —
Puget Sound Blood Group Seattle Washington 98104 —

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 55 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT01736475, 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 May 20, 2021 · Synced Oct 25, 2026

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Open the official record

The complete public registry record, listed eligibility criteria, and available contact information for NCT01736475 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →