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Verified·NCT04208529Synced: Nov 10, 2026Enrolling by invitationPhase 3

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

Plain-language summary

This multi-site, open-label rollover study evaluates the long-term safety and efficacy of CTX001 (Exagamglogene autotemcel, Exa-cel) in pediatric and adult participants who received it in a parent study. The parent studies are 111 (NCT03655678), 141 (NCT05356195) and 161 (NCT05477563) for transfusion-dependent beta-thalassemia (TDT), and 121 (NCT03745287), 151 (NCT05329649) and 161 (NCT05477563) for severe sickle cell disease (SCD). Participants, or their legally authorized representative or guardian, must sign the informed consent form and must have received a CTX001 infusion in a parent study; enrollment is by invitation.

The summary above is a plain-language rendering of the official record. The original English title is shown for reference.

Trial details

Phase
Phase 3
Status
Enrolling by invitation
Sponsor
Vertex Pharmaceuticals Incorporated
Intervention
CTX001 (Exagamglogene autotemcel, Exa-cel)
Start date
1/20/2021
Estimated completion
9/30/2039
Countries
United States, Belgium, Canada, Germany, Italy, United Kingdom

Related genes

Locations

  • Palo Alto, United States
  • Chicago, United States
  • New York, United States
  • New York, United States
  • Charlotte, United States
  • Philadelphia, United States
  • Memphis, United States
  • Nashville, United States
  • San Antonio, United States
  • Brussels, Belgium
  • Toronto, Canada
  • Toronto, Canada
  • Vancouver, Canada
  • Düsseldorf, Germany
  • Klinik Für Kinder- Und Jugendmedizin, Germany
  • Regensburg, Germany
  • Rome, Italy
  • London, United Kingdom
  • London, United Kingdom
  • London, United Kingdom

Eligibility criteria

Criteria are reproduced from the ClinicalTrials.gov record in the original English. Only the trial team can determine eligibility.

Inclusion Criteria:

* Participants (or his or her legally appointed and authorized representative or guardian) must sign and date informed consent form (ICF) and, where applicable, an assent form
* Participants must have received CTX001 infusion in a parent study

Exclusion Criteria:

* There are no exclusion criteria
This is not medical advice. Consult your specialist.
View the official record on ClinicalTrials.gov →