Open-Label Extension of Voxelotor
Sickle Cell Disease
About this trial
This is an interventional treatment trial for Sickle Cell Disease
Eligibility Criteria
Inclusion Criteria:
- Male or female participant with SCD, who participated and received study drug in a GBT-sponsored voxelotor clinical study
- Participant has provided written assent (both the consent of the participant's legal representative or legal guardian and the participant's assent [where applicable] must be obtained) or consent
Exclusion Criteria:
- Female participant who is breastfeeding or pregnant
- Participant withdrew consent from a GBT-sponsored voxelotor clinical study
- Known hypersensitivity to voxelotor or any other components of the study drug
- Use of St. John's wort, sensitive cytochrome P450 (CYP) 3A4 substrates with a narrow therapeutic index, or moderate or strong CYP3A4 inducers within 30 days of Day 1
Sites / Locations
- Children's National Medical Center
- Children's Healthcare of Atlanta Scottish Rite
- Ann & Robert H. Lurie Children's Hospital of ChicagoRecruiting
- Children's Mercy Hospital
- ECU Physicians, Brody Outpatient ClinicRecruiting
- UPMC Children's Hospital of Pittsburgh
- American University of Beirut - Medical CenterRecruiting
- Nini HospitalRecruiting
- University College Hospital Paediatric Haematology and Oncology UnitRecruiting
- Barau Dikko Teaching Hospital/Kaduna State UniversityRecruiting
- Aminu Kano Teaching HospitalRecruiting
- Lagos University Teaching HospitalRecruiting
- University College Hospital NHS Foundation TrustRecruiting
- Barts Health NHS Trust , The Royal London HospitalRecruiting
- Guy's & St Thomas NHS Trust, St Thomas' HospitalRecruiting
Arms of the Study
Arm 1
Experimental
Voxelotor
All participants will receive voxelotor once daily (QD), administered orally as tablets, dispersible tablets, or a stick pack formulation (powder blend formulation packaged as stick packs). Participants aged ≥ 12 years and/or ≥ 40 kgs will receive a voxelotor dose of 1500 mg QD. Participants aged < 12 years and < 40 kgs will receive weight based dosing of voxelotor. The participant's weight at study entry will be used to determine the starting voxelotor dose in this study. Participants may receive study drug as long they continue to receive clinical benefit that outweighs risk as determined by the investigator and/or until the participant has access to voxelotor from an alternative source.