Spruce Biosciences, Inc. is a biopharmaceutical company focused on developing and commercializing novel therapies for neurological disorders. The company develops TA-ERT, a fusion protein comprised of recombinant human alpha-N-acetylglucosaminidase, which is an enzyme replacement therapy for patients with Sanfilippo Syndrome Type B. It also develops Tildacerfont for treating a highly debilitating mental disorder characterized by depressed mood with cognitive-affective and somatic changes, including anhedonia, weight alterations, and altered sleeping patterns.