Study to Assess the Effect of Long-term Treatment With Voxelotor in Participants Who Have Completed Treatment in Study GBT440-031
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.
Data is sourced from official ClinicalTrials.gov public API records. 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
Study identification
- NCT ID
- NCT03573882
- Recruitment status
- Terminated
- Study type
- Interventional
- Phase
- Phase 3
- Lead sponsor
- Pfizer
- Industry
- Enrollment
- 179 participants
Conditions and interventions
Conditions
Interventions
- Voxelotor Drug
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 5, 2018
- Primary completion
- Nov 11, 2024
- Completion
- Nov 11, 2024
- Last update posted
- Nov 17, 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 17, 2025 · Synced Apr 27, 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 NCT03573882 live on ClinicalTrials.gov.