CI

At a glance

ClinicalIndex Comparison Record
Phase 3Completed· 63 enrolled
Drug / intervention
CTX001biological
Likely dose
Not stated in record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT03745287
NCT03745287Phase 3Completed

A Phase 1/2/3 Study to Evaluate the Safety and Efficacy of a Single Dose of Autologous CRISPR-Cas9 Modified CD34+ Human Hematopoietic Stem and Progenitor Cells (CTX001) in Subjects With Severe Sickle Cell Disease

Vertex Pharmaceuticals Incorporated·interventional·Posted Nov 19, 2018·Updated Aug 11, 2025

In Brief

A Phase 3 clinical trial evaluating CTX001 for Sickle Cell Disease and 2 related conditions. Completed, enrolled 63 participants across 17 sites in 7 countries.

Detailed Summary

This is a single-arm, open-label, multi-site, single-dose Phase 1/2/3 study in subjects with severe sickle cell disease (SCD). The study will evaluate the safety and efficacy of autologous CRISPR-Cas9 Modified CD34+ Human Hematopoietic Stem and Progenitor Cells (hHSPCs) using CTX001.

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
CountriesBelgium, Canada, France, Germany, Italy, United Kingdom, United States
CollaboratorsCRISPR Therapeutics

Timeline

Phase 3CompletedFinished
20192020202120222023202420252026
First PostedNov 19, 2018
Enrollment StartNov 27, 2018
Primary CompletionJul 7, 2025
TodayJul 2, 2026
Enrollment to primary: 6.6 yearsPosted 7.6 years ago

Interventions

CTX001biological

Administered by IV infusion following myeloablative conditioning with busulfan.