- Patients must have a high grade urothelial carcinoma stage Ta or T1 that has recurred within 540 days after completion of the initial treatment (transurethral resection bladder tumor [TURBT] and intravesical bacillus Calmette-Guerin [BCG] immunotherapy) or have presented to a participating urologist who judged BCG therapy is contraindicated because this patient may be immuno-compromised or because the patients refuses BCG therapy