A Long-term Follow-up Study in Participants Who Received CTX001

Enrolling by invitation · Phase 3

Conditions studied: Beta-Thalassemia, Thalassemia, Sickle Cell Disease, Hematologic Diseases, Hemoglobinopathies, Genetic Diseases, Inborn, Sickle Cell Anemia

In brief

This is a multi-site, open- label rollover study to evaluate the long-term safety and efficacy of CTX001 in pediatric and adult participants who received CTX001 in parent studies 111 (NCT03655678) 141 (NCT05356195) or 161 (NCT05477563) (transfusion-dependent β-thalassemia \[TDT\] studies) or Study 121 (NCT03745287) or 151 (NCT05329649) or 161(NCT05477563) (severe sickle cell disease \[SCD\] studies).

Key facts

Study ID
NCT04208529
Run by
Vertex Pharmaceuticals Incorporated
People needed
160
Starts
2021-01-20
Expected to finish
2039-09-30
Last updated by the study team
2026-03-25

Who can join

Age: 2 and older. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

You may not qualify if…

Where it is running

Full record on ClinicalTrials.gov

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