IRVINE, Calif.--(BUSINESS WIRE)--Spectrum Pharmaceuticals (NasdaqGM: SPPI) today announced that the second of two Phase 3 pivotal clinical trials of apaziquone has achieved its enrollment target. The two trials enrolled more than 1600 patients with non-muscle invasive bladder cancer. As per the collaboration agreement with Allergan, a $1.5 million milestone payment will be paid to Spectrum Pharmaceuticals.