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

Columbia University Medical Center (21+ years), New York

Columbia University Medical Center, New York

Children's Hospital of Philadelphia, Philadelphia

Atrium Health Levine Children's Hospital, Charlotte

The Children's Hospital at TriStar Centennial Medical Center/ Sarah Cannon Center for Blood Cancers, Nashville

St. Jude Children's Research Hospital, Memphis

Ann & Robert Lurie Children's Hospital of Chicago, Chicago

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

Lucile Packard Children's Hospital, Palo Alto

Hopital Universitaire des Enfants Reine Fabiola (HUDERF), Brussels

The Hospital for Sick Children, Toronto

Toronto General Hospital, University Health Network, Toronto

St. Paul's Hospital, Vancouver

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

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

University Hospital Tuebingen, Tübingen

Dipartimento di Onco-Ematologia e Terapia Cellulare e Genica Ospedale Pediatrico Bambino Gesu - IRCCS, Rome

Imperial College Healthcare NHS Trust, Hammersmith Hospital, London

University College London Hospitals NHS Foundation Trust, London