Magenta Therapeutics, Inc., a clinical-stage biotechnology company, develops medicines to bring the curative power of stem cell transplants to patients with blood cancers, genetic diseases, and autoimmune diseases. It develops MGTA-117, an anti-CD117 antibody that targets hematopoietic stem cells (HSCs) and genetically mutated stem cells that cause acute myeloid leukemia and myelodysplastic syndromes, which is under Phase I/II clinical trial; CD45-antibody drug conjugate that targets HSCs and immune cells, which is in investigational new drug application enabling studies for potential use as a single-agent in autoimmune diseases and hematology-oncology transplants; and MGTA-145 that is in Phase II clinical trial for use in autologous and allogeneic transplants. The company also has a cell therapy program, E478, which is a small molecule aryl hydrocarbon receptor antagonist for stem cell-based gene therapy and genome editing. Magenta Therapeutics, Inc. has a research and clinical collaboration agreement with AVROBIO, Inc. for the treatment of lysosomal storage disorders; and Beam Therapeutics, Inc. to evaluate the potential utility of MGTA-117 for conditioning of patients with sickle cell disease and beta-thalassemia. The company was formerly known as HSCTCo Therapeutics, Inc. and changed its name to Magenta Therapeutics, Inc. in February 2016. Magenta Therapeutics, Inc. was incorporated in 2015 and is headquartered in Cambridge, Massachusetts.