HUNTINGDON VALLEY, Pa.--(BUSINESS WIRE)--Immunicon Corporation (NASDAQ-GM:IMMC) announced today that the Company met its primary endpoint associated with its pivotal clinical trial in metastatic androgen-independent prostate cancer. The primary endpoint was that circulating tumor cells (CTC) levels three-to-five weeks after the initiation of chemotherapy would predict overall survival. The study also showed that CTC levels predict overall survival at each of the tested time points.