Sickle cell disease due to hemoglobin S and a non-S/non-C hemoglobin variant

This trial tests whether giving defibrotide before and after a stem cell transplant can prevent a serious liver condition called sinusoidal obstructive syndrome (SOS) in children and young adults with sickle cell disease or beta thalassemia. Participants receive defibrotide start…

This phase 2 trial tests a combination of three chemotherapy drugs (treosulfan, fludarabine, thiotepa) plus an immune-suppressing antibody before a donor stem cell transplant in up to 40 people under 50 with non-cancerous blood disorders. The goal is to see if this milder conditi…

This study tests whether adding the drug vorinostat to standard care can prevent graft-versus-host disease (GVHD) in children and young adults (ages 1-26) with non-cancerous blood disorders who are getting a bone marrow transplant. GVHD is a serious complication where donor cells…

This trial tests a second stem cell transplant using a gentler conditioning regimen of busulfan, fludarabine, and low-dose total body irradiation. It is for people with blood disorders, hemoglobin diseases, or immune deficiencies whose first transplant did not achieve enough dono…

This study tests a bone marrow transplant from a family donor for children under 21 with severe non-cancer blood disorders like sickle cell disease, bone marrow failure, or immune problems. The goal is to see if the transplant can replace the diseased cells with healthy donor cel…

This expanded access program offers a stem cell transplant using donor cells that have been specially processed to remove certain immune cells, reducing the risk of graft-versus-host disease. It is for patients with serious blood disorders, immune deficiencies, or metabolic disea…

Researchers at St. Jude Children's Research Hospital are following people with hemoglobin disorders who have received a stem cell transplant or gene therapy. The study enrolls up to 200 participants who had or plan to have one of these treatments within 15 years. It collects rout…

This study provides ongoing check-ups for people who received a donor stem cell transplant at the NIH at least three years ago. Researchers will monitor for late side effects, disease return, and overall health. Participants will have yearly visits that may include blood tests, b…

This study aims to measure how long red blood cells survive in people with sickle cell disease, thalassemia, and other inherited blood disorders. Researchers will take a blood sample, label the red cells with biotin (a vitamin), and infuse them back into the participant. Over up …