A Phase 3, Randomized, Open-label, Multi-center Study Evaluating the Efficacy and Safety of TAR-200 Versus Investigator’s Choice of Intravesical Chemotherapy in Participants Who Received Bacillus Calmette-Guérin (BCG) and Recurred with High-risk Non-muscle-invasive Bladder Cancer (HR-NMIBC) and Who Are Ineligible for or Elected Not to Undergo Radical Cystectomy

The purpose of this study is to compare disease free survival (DFS) in participants with recurrence of papillary-only high-risk non-muscle-invasive bladder cancer (HR-NMIBC) within 1 year of last dose of Bacillus Calmette-Guérin (BCG) therapy and who refused or are unfit for Radical Cystectomy (RC), receiving TAR-200 versus investigator's choice of single agent intravesical chemotherapy.