Medical Treatment for Diamond Blackfan Anemia
Diamond Blackfan anemia (DBA) is a condition in which the bone marrow is underdeveloped. DBA is considered a congenital disease, meaning patients are born with it. In DBA there is a lack of cells that give rise to red blood cells. The other elements produced in the bone marrow, such as white blood cells and platelets, are normal.
Standard treatments used for this disorder such as steroids and bone marrow transplants are associated with failure, relapse, side-effects, increased morbidity, and even death. Two drugs, antithymocyte globulin (ATG) and cyclosporin have been used to treat DBA, but have only provided occasional responses. No study has ever combined these two drugs for the treatment of DBA.
This study is designed to explore the combined use of ATG and cyclosporine as a rational approach to the treatment of DBA.
Drug: Antithymocyte globulin
|Study Design:||Endpoint Classification: Safety/Efficacy Study
Primary Purpose: Treatment
|Official Title:||Treatment of Diamond Blackfan Anemia With Antithymocyte Globulin and Cyclosporine A|
|Study Start Date:||July 1998|
|Estimated Study Completion Date:||July 2005|
Diamond Blackfan anemia (DBA) is a constitutional pure red cell aplasia of unknown etiology. There is laboratory evidence for an immune mechanism and most patients respond to corticosteroids. However the relapse and failure rate are high, and corticosteroids are associated with many short and long term side effects. Patients who do not respond or who do not tolerate corticosteriods require lifelong red blood cell transfusion and iron chelation therapy. Allogeneic bone marrow transplantation is an option for those with a related histocompatible donor, but this procedure is associated with high mortality and morbidity. Other therapies have been tried without general success. Occasional responses to either ATG or cyclosporine have been reported, but no study has used both ATG and cyclosporine. In other blood/bone marrow disorders of immune etiology these drugs have synergistic effects. We propose a Phase II study to explore the combined use of ATG and cyclosporine as a rational approach to the treatment of Diamond Blackfan anemia.
|United States, Maryland|
|National Heart, Lung and Blood Institute (NHLBI)|
|Bethesda, Maryland, United States, 20892|