54. Simons JW, Carducci MA, Mikhak B, et al. P hase I/II trial of an allogeneic cellular immunotherapy in hormone -naive p rostate cancer. Clin.Cancer Res 2006; 12: 3394 -3401. 55. Small EJ, Halabi S, Dawson NA, et al. Antiandrogen withdrawal alone or in combination with ketoconazole in androgen -independent prostate cancer patients: a phase III trial. J Clin Oncol 2004; 22: 1025 -1033.