The purpose of this pre-approval access program is to provide access to TAR-200 prior to its marketing authorization for the treatment of participant(s) with high-risk non-muscle invasive bladder cancer (HR-NMIBC).

Inclusion criteria:

• Participant has exhausted all clinically appropriate alternative forms of treatment and is not eligible for, or does not have access to, a clinical trial
• Histologically confirmed diagnosis of persistent or recurrent high-risk non-muscle-invasive bladder cancer (HR-NMIBC), carcinoma in situ (CIS) (OR Tis) with or without papillary disease (T1, high-grade Ta), within 12 months of completion of the last dose of BCG therapy, in participants who have received adequate Bacillus Calmette-Guérin (BCG)
• All visible papillary disease must be fully resected (absent) prior to initiation of treatment
• Participants must be ineligible for or have elected not to undergo Radical Cystectomy (RC)
• Have an Eastern Cooperative Oncology Group (ECOG) performance status Grade of 0, 1, or 2

Exclusion criteria:

• Presence or history of histologically confirmed, muscle invasive, locally advanced, nonresectable, or metastatic urothelial carcinoma (that is, T2, T3, T4, and/or Stage IV)
• Presence of any bladder or urethral anatomic feature that, in the opinion of the Investigator, may prevent the safe placement, indwelling use, or removal of TAR-200. Participants with tumors involving the prostatic urethra in men will be excluded
• Evidence of bladder perforation during diagnostic cystoscopy
• A history of clinically significant polyuria with recorded 24-hour urine volumes greater than 4000 milliliters (>4000 mL)
• Active malignancies (i.e., progressing or requiring treatment change in the last 24 months) other than HR-NMIBC