Cabaletta Bio, Inc., a clinical-stage biotechnology company, focuses on the discovery and development of engineered T cell therapies for patients with B cell-mediated autoimmune diseases.Its lead product candidate is DSG3-CAART, which is in Phase I clinical trial for the treatment of mucosal pemphigus vulgaris, an autoimmune blistering skin disease, and Hemophilia A with Factor VIII alloantibodies.