CRISPR gene therapy: a Long-Term safety check for blood disease patients

NCT ID NCT04208529

First seen Jun 27, 2026 · Last updated Aug 12, 2026 · Updated 2 times

Summary

This study follows 160 children and adults with beta-thalassemia or sickle cell disease who received a one-time treatment of their own CRISPR-edited stem cells (CTX001). The goal is to monitor long-term safety, including any new cancers or blood disorders, and to see how well the therapy works over time. Participants join after completing earlier studies, and there are no new exclusion criteria.

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Conditions

The condition(s) this trial relates to.

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Locations

  • Ann & Robert H. Lurie Children's Hospital of Chicago - Hematology

    Chicago, Illinois, 60611, United States

  • Center for Pediatric Clinical Studies (CPCS)

    Klinik Für Kinder- Und Jugendmedizin, Germany

  • Great Ormond Street Hospital for Children

    London, United Kingdom

  • Hammersmith Hospital - Haematology Dept

    London, United Kingdom

  • Herbert Irving Pavilion - Hematology

    New York, New York, 10032, United States

  • Hopital Universitaire des Enfants Reine Fabiola (HUDERF) - Hematology

    Brussels, Belgium

  • Hospital for Sick Children - Hematology

    Toronto, Canada

  • IRCSS Ospedale Pediatrico Bambino Gesu - Dipartimento di Onco-Ematologia e Terapia Cellulare e Genica

    Rome, Italy

  • Levine Children's Hospital - Hematology

    Charlotte, North Carolina, 28203, United States

  • Lucile Packard Children's Hospital

    Palo Alto, California, 94304, United States

  • Methodist Healthcare System of San Antonio, Methodist Hospital, Methodist Children's Hospital

    San Antonio, Texas, 78229, United States

  • New York Presbyterian Hospital - Morgan Stanley Children's Hospital

    New York, New York, 10032, United States

  • Regensburg University Hospital, Clinic and Polyclinic for Paediatric and Adolescent Medicine

    Regensburg, Germany

  • St. Jude Children's Research Hospital

    Memphis, Tennessee, 38105, United States

  • St. Paul's Hospital - Hematology

    Vancouver, Canada

  • The Children's Hospital of Philadelphia - Hematology

    Philadelphia, Pennsylvania, 19104, United States

  • Toronto General Hospital - Hematology

    Toronto, Canada

  • TriStar Medical Group Children's Specialists - Pediatric Oncology

    Nashville, Tennessee, 37203, United States

  • University College London Hospital NHS Foundation - Main

    London, United Kingdom

  • University Hospital Duesseldorf - Department of Pediatric Oncology, Hematology and Clinical Immunology

    Düsseldorf, Germany

More trials for these conditions

Other studies related to the condition(s) this trial covers.