Cabaletta Bio is a biopharmaceutical company focused on the discovery and development of cellular therapies for B cell-mediated autoimmune diseases. Cabaletta’s therapeutic platform produces highly selective autologous chimeric autoantibody receptor (CAAR) T cells that bind and destroy only disease-causing B cells, while sparing healthy B cells which are essential for human health. Cabaletta has signed an exclusive licensing agreement and partnership with Penn focused on treating B cell-mediated autoimmune diseases with CAAR T cells. Cabaletta was founded by Dr. Michael Milone, Dr. Aimee Payne and Dr. Steven Nichtberger. Dr. Milone and Dr. Payne are physician/scientists at Penn and also serve as co-chairs of Cabaletta’s Scientific Advisory Board. The Company’s lead therapeutic program is a potential treatment for a prototypical B cell-mediated autoimmune disease, mucosal pemphigus vulgaris (mPV). mPV is a rare skin disorder that causes painful blisters and sores on mucous membranes such as the mouth, nose, throat, and genitals, leading to severe and sometimes debilitating and life-altering effects.