Phase 2 Open-Label Study of TARA-002 Instillation to Treat Adults With High-Grade Non-Muscle Invasive Bladder Cancer

What this Trial Is About

Researchers are studying the safety and effectiveness of TARA-002, a biological preparation containing Streptococcus pyogenes cells, for adults aged 18 and older with high-grade non-muscle invasive bladder cancer NMIBC, including carcinoma in situ CIS with or without TaT1 tumors. This Phase 2 open-label trial further evaluates TARA-002 at a dose established in an earlier Phase 1a study. Participants include those with active disease confirmed within 3 months before enrollment, divided into two groups based on prior treatment with BCG therapy. Participants receive TARA-002 directly into the bladder through instillation. The treatment involves an initial period of six weekly doses, followed by a possible second period of six additional weekly doses or three weekly maintenance doses for those with a complete response. Maintenance doses continue at specified months up to 24 months. After treatment, participants enter a follow-up period lasting from month 27 to month 60 to monitor long-term outcomes. Throughout the study, participants undergo regular assessments including evaluations of tumor response, progression-free survival, overall survival, and quality of life using specific questionnaires. Researchers monitor urinary biomarkers and track adverse events from the first day of treatment through the entire follow-up period. The studys main outcome is the rate of high-grade complete response measured from 3 to 60 months after treatment. Total participation may last up to 5 years.

Safety and Efficacy Study of Intravesical Instillation of TARA-002 in Adults With High-grade Non-muscle Invasive Bladder Cancer