Clinical trial

A Safety and Efficacy Study Evaluating CTX001 in Participants With…

NCT03655678 · Vertex Pharmaceuticals Incorporated, Industry · Completed

Key facts

NCT number NCT03655678
Title A Safety and Efficacy Study Evaluating CTX001 in Participants With Transfusion-Dependent β-Thalassemia
Official title A Phase 1/2/3 Study of the Safety and Efficacy of a Single Dose of Autologous CRISPR-Cas9 Modified CD34+ Human Hematopoietic Stem and Progenitor Cells (hHSPCs) in Subjects With Transfusion-Dependent β-Thalassemia
Lead sponsor Vertex Pharmaceuticals Incorporated, Industry
Collaborators CRISPR Therapeutics Industry
Status Completed
Phase Phase 2/Phase 3
Study type Interventional
Conditions Beta-Thalassemia, Thalassemia, Genetic Diseases, Inborn, Hematologic Diseases, Hemoglobinopathies
Intervention type Biological
Interventions CTX001
Enrollment 59
Start date Sep 14, 2018
Primary completion Nov 13, 2025
Completion Nov 13, 2025
First posted Aug 31, 2018
Last update posted Dec 17, 2025
Countries Canada, Germany, Italy, United Kingdom, United States

At a glance

  • 10–99 Study sites
  • No Results posted
  • None Linked FDA submissions

Counts are shown as ranges. Exact figures, trends and every underlying record are available in Orca1.

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