Dendreon Corp. received approval from the FDA for Provenge (sipuleucel-T), an autologous cellular immunotherapy for the treatment of asymptomatic or minimally symptomatic metastatic, castrate-resistant (hormone-refractory) prostate cancer (CRPC). Provenge is designed to induce an immune response against prostatic acid phosphatase (PAP), an antigen expressed in most prostate cancers. “The FDA approval of Provenge is a testament to the courage of the patients and researchers who participa...