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Terminated Phase 3 Interventional Results available

Study to Assess the Effect of Long-term Treatment With Voxelotor in Participants Who Have Completed Treatment in Study GBT440-031

ClinicalTrials.gov ID: NCT03573882

Public ClinicalTrials.gov record NCT03573882. 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 Nov 6, 2026, 3:53 PM EST

All trial information on this site comes from the official ClinicalTrials.gov public API (clinicaltrials.gov/api/v2), run by the U.S. National Library of Medicine. We only display that public information; we do not add opinions, endorsements, or any other intent. Always review the official ClinicalTrials.gov record for the latest information.

Official title

An Open Label Extension Study of Voxelotor (GBT440) Administered Orally to Participants With Sickle Cell Disease Who Have Participated in Voxelotor Clinical Trials

Brief summary

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

Open Label Extension Study of Voxelotor Clinical Trial Participants with Sickle Cell Disease Who Participated in Voxelotor Clinical Trials

Study identification

NCT ID
NCT03573882
Recruitment status
Terminated
Study type
Interventional
Phase
Phase 3
Lead sponsor
Pfizer
Industry
Enrollment
179 participants

Conditions and interventions

Interventions

Drug

Eligibility (public fields only)

Age range
12 Years to 65 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 6, 2018 (Actual)
Primary completion
Nov 12, 2024 (Actual)
Completion
Nov 12, 2024 (Actual)
Last update posted
Nov 18, 2025

2018 – 2024

United States locations

U.S. sites
34
U.S. states
19
U.S. cities
23
Facility City State ZIP Site status
Arkansas Primary Care Clinic, PA Little Rock Arkansas 72204 —
UCSF Benioff Children's Hospital Oakland Oakland California 94609 —
Jackson Memorial Hospital (Investigational Drug Services) Miami Florida 33136 —
Jackson Memorial Hospital Miami Florida 33136 —
University of Miami Hospital & Clinics/SCCC, Research Pharmacy (Investigational Drug Services) Miami Florida 33136 —
University of Miami Miami Florida 33136 —
Children's Healthcare of Atlanta - Scottish Rite Atlanta Georgia 30342 —
University of Illinois at Chicago Clinical Research Center Chicago Illinois 60612 —
University of Illinois Hospital and Health Science System Chicago Illinois 60612 —
Indiana Hemophilia and Thrombosis Center Indianapolis Indiana 46260 —
St. Jude Affiliate Clinic Baton Rouge Baton Rouge Louisiana 70808 —
Our Lady of the Lake Physician Group-Medical Oncology Baton Rouge Louisiana 70809 —
University Medical Center New Orleans New Orleans Louisiana 70112 —
Johns Hopkins University/Sickle Cell Infusion Center Baltimore Maryland 21287 —
Brigham and Women's Hospital Boston Massachusetts 02115 —
Brigham and Women's Hospital Research Pharmacy Boston Massachusetts 02215 —
Dana Farber Cancer Institute Boston Massachusetts 02215 —
Children's Hospital of Michigan Detroit Michigan 48201 —
Newark Beth Israel Medical Center Newark New Jersey 07112 —
Columbia University Medical Center - Herbert Irving Pavilion New York New York 10032 —
Montefiore - Einstein Center for Cancer Care The Bronx New York 10461 —
UNC Hospitals Chapel Hill North Carolina 27514 —
Clinical and Translational Research Center (CTRC) Chapel Hill North Carolina 27599 —
Duke University Medical Center Durham North Carolina 27710 —
Investigational Drug Service, Duke University Hospital Durham North Carolina 27710 —
Lynn Health Science Institute Oklahoma City Oklahoma 73112 —
Thomas Jefferson University Philadelphia Pennsylvania 19107 —
University of Pittsburgh Medical Center (UPMC) Pittsburgh Pennsylvania 15232 —
Medical University of South Carolina - Comprehensive Sickle Cell Clinic Charleston South Carolina 29425 —
Medical University of South Carolina: Investigational Drug Services Pharmacy Charleston South Carolina 29425 —
Methodist Comprehensive Sickle Cell Clinic Memphis Tennessee 38104 —
Texas Children's Hospital - Investigational Pharmacy Houston Texas 77030 —
Texas Children's Hospital Houston Texas 77030 —
Clinical Research Services Unit- Virginia Commonwealth University Richmond Virginia 23298 —

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 26 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT03573882, 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 Nov 18, 2025 · Synced Nov 6, 2026

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Open the official record

The complete public registry record, listed eligibility criteria, and available contact information for NCT03573882 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →