Scholar Rock Holding Corporation is a biopharmaceutical company. The Company focuses on improving the lives of children and adults with spinal muscular atrophy (SMA) and additional rare, severe and debilitating neuromuscular diseases. Its pipeline product candidates include apitegromab, a subcutaneous formulation of apitegromab, and SRK-439. The Apitegromab is an investigational fully human, intravenously administered monoclonal antibody designed to inhibit myostatin activation by selectively binding the pro- and latent forms of myostatin in the skeletal muscle. The SRK-439, is an investigational, subcutaneously administered fully human anti-pro/latent myostatin antibody that has high inhibitory potency while maintaining selectivity towards myostatin. Its early-stage pipeline includes additional programs for the treatment of patients with rare, severe, and debilitating neuromuscular diseases.