A Study of IAP0971 in Combination With Bacillus Calmette Guerin in High Risk Non-muscular Invasive Bladder Cancer

Induction period (6 weeks): IAP0971 single drug bladder infusion, once a week;Maintenance period: IAP0971 single drug bladder infusion, performed at 3, 6, 12, 18, and 24 months, once a week, for 3 consecutive times

Induction period (6 weeks): IAP0971 combined with BCG,Bladder perfusion, once a week;Maintenance period: IAP0971 combined with BCG bladder perfusion,Maintain at months 3, 6, 12, 18, and 24Perfusion, once a week, three times in a row.

Induction period (6 weeks): IAP0971 combined with BCG,Bladder perfusion, once a week;Maintenance period: IAP0971 combined with BCG bladder irrigationNote, progress at months 3, 6, 12, 18, and 24Perform maintenance perfusion once a week, three times in a row.