Climb Bio, Inc. is a clinical-stage biotechnology company. The Company is focused on developing therapeutics for patients with immune-mediated diseases. The Company’s lead product candidate, budoprutug, is an anti-CD19 monoclonal antibody designed to deplete CD19-positive B cells, including antibody-secreting cells, in order to directly reduce pathogenic autoantibodies. The reduction of autoantibodies has the potential to be disease-modifying in autoantibody-driven diseases, such as systemic lupus erythematosus, immune thrombocytopenia, and membranous nephropathy. The budoprutug is in a Phase Ib/IIa clinical trial. The Company is also developing CLYM116, an anti-APRIL antibody, in investigational new drug applications (IND)-enabling studies for IgA nephropathy (IgAN).