Sutro Biopharma, Inc....today announced that the U.S. Food and Drug Administration (FDA) has granted Fast Track designation for STRO-002, a folate receptor alpha (FolRα)-targeting antibody-drug conjugate (ADC), for the treatment of patients with platinum-resistant epithelial ovarian, fallopian tube, or primary peritoneal cancer who have received one to three prior lines of systemic therapy.