Clinical and Preclinical Therapies for Bladder Cancer Following Bacillus Calmette-Guérin Failure.

Bladder-preserving treatments accomplish moderate success in nonmuscle-invasive bladder cancer following bacillus Calmette-Guérin failure. As the majority of available clinical trials are single-armed uncontrolled cohorts and contain a limited number of patients, strength and comparability of the data are limited. In general, intravesical chemotherapy and hyperthermia paired with mitomycin C demonstrate some of the highest complete response rates at 12 and 24 months. Similarly, among the pre-commercialized novel agents, N-803 and gene therapy display promising results and may serve as potential future treatment for nonmuscle-invasive bladder cancer following failed bacillus Calmette-Guérin treatment. In terms of toxicity/complication rates, both commercially available and unavailable treatments showcase low toxicity profiles for bladder cancer following bacillus Calmette-Guérin failure. The comprehensive analysis provided by this systematic review can serve as a reference for treatment decisions and clinical trial design in the bacillus Calmette-Guérin-unresponsive domain.