Scientists launch massive blood sample bank to unlock secrets of transplants and gene therapy

This study aims to create a large collection of blood samples and health information from patients receiving stem cell transplants or gene therapy for serious non-cancer blood diseases like aplastic anemia and sickle cell disease. Researchers will collect samples before and after treatment to understand why these treatments sometimes fail and to find better future therapies. The study does not test a new treatment; it only collects data and samples to help future research.