All patients undergo cystoscopic surveillance with or without a biopsy every 3 months for 2 years. Urine, blood, and tissue samples are collected periodically for biomarker laboratory studies. Patients complete quality of life questionnaires (EORTC QLQ-BLS24, QLQ-C30, and EQ5D) at baseline, at 12 weeks, and at 6, 9, and 12 months.