Sanatorio San Luigi

Researchers are comparing the length of time participants survive without signs of cancer returning after treatment for high-risk non-muscle-invasive bladder cancer (HR-NMIBC). This Phase 3 study focuses on patients who have received Bacillus Calmette-Guérin (BCG) treatment and have specific FGFR mutations or fusions. The study aims to evaluate and compare disease-free survival between those treated with TAR-210 and those receiving intravesical chemotherapy chosen by the investigator. Participants will receive either TAR-210, a drug administered directly into the bladder, or one of two chemotherapy drugs, Mitomycin C or Gemcitabine, also given intravesically. All visible tumors must be fully removed before randomization. The study includes patients who are either unresponsive to BCG, experienced with BCG, or intolerant to BCG treatment. Participants must not be eligible for or must refuse radical cystectomy surgery. During the study, participants will be monitored for disease-free survival for up to five years. Researchers will perform assessments including urine testing, tumor tissue analysis, and biopsies as needed to confirm eligibility and monitor disease status. Safety, treatment adherence, and patient health status will be regularly evaluated to ensure ongoing suitability for the study.