Wednesday, February 05, 2025 The BLC1 (SWOG S1011): A Phase III Surgical Trial to Evaluate the Benefit of a Standard versus an Extended Pelvic Lymphadenectomy Performed at the Time Of Radical Cystectomy For Muscle Invasive Urothelial Cancertrial has permanently closed. This randomized phase II trial studied standard pelvic lymphadenectomy to see how well it works compared to extended pelvic lymphadenectomy in treating patients undergoing surgery for invasive bladder cancer.