This study is being done to see if giving your child a lower dose of chemotherapy (drug therapy), than has been used historically in bone marrow transplant, to kill his/her own diseased cells before he/she receives a bone marrow transplant, will possibly result in the permanent control of your child's sickle…
The purpose of this study is to find out if the study medicine called EDIT-301 will help in the treatment of Severe Sickle Cell Disease (SCD) and how safe it is to be used in people. EDIT-301 (study medicine) is a new investigational therapy which uses the patient's own stem…