A Study of TAR-200 in Combination with Cetrelimab or TAR-200 Alone Versus Intravesical Bacillus Calmette-Guerin (BCG) in Participants with BCG-naive High-risk Non-muscle Invasive Bladder Cancer

Phase 3

Recruiting

• Conditions: Bladder Cancer

• Registration Number: JPRN-jRCT2031230220
• Lead Sponsor: Fujikawa Ei

Brief Summary

Not available

Detailed Description

Not available

Study Timeline

• Study Start: 2023-07-12
• Last Update Posted: 20 November 2023

Recruitment & Eligibility

• Status: Recruiting
• Sex: All
• Target Recruitment: 1050

Inclusion Criteria

Histologically confirmed initial diagnosis by local pathology (within 90 days of the most recent signed informed consent) of high grade non-muscle invasive bladder cancer (HR-NMIBC) (high-grade Ta, any T1 or carcinoma in-situ [CIS]), in participants who are Bacillus Calmette Guerin (BCG)-naive.
- Histologically confirmed initial diagnosis by local pathology (within 90 days of the initial signed informed consent) of high grade non-muscle invasive bladder cancer (HR-NMIBC) (high-grade Ta, any T1 or carcinoma in-situ [CIS]), in participants who are Bacillus Calmette Guerin (BCG)-naive. Mixed histology tumors are allowed if urothelial differentiation (transitional cell histology) is predominant. However, the presence of neuroendocrine, micropapillary, signet ring cell, plasmacytoid, or sarcomatoid features will make a participant ineligible
- All visible papillary disease must be fully resected (absent) prior to date of randomization and documented at baseline cystoscopy.Local urine cytology at screening must be negative or atypical (for high-grade urothelial carcinoma [HGUC]) for patients with papillary only disease (without CIS)
- Eastern Cooperative Oncology Group (ECOG) performance status Grade 0, 1, or 2
- All adverse events associated with any prior surgery and/or intravesical therapy must have resolved to common terminology criteria for adverse events (CTCAE) version 5.0 Grade less than (<) 2 prior to date of randomization
- Participants must be willing to undergo all study procedures

Exclusion Criteria

- Presence or history of histologically confirmed, muscle invasive, locally advanced, nonresectable, or metastatic urothelial carcinoma (that is, greater than and equal to [>=] T2)
- Must not have had urothelial carcinoma or histological variant at any site outside of the urinary bladder (that is, urethra, ureter, or renal pelvis). Ta/any T1/CIS of the upper urinary tract (including renal pelvis and ureter) is allowable if treated with complete nephroureterectomy more than 24 months prior to randomization
- Presence of any bladder or urethral anatomic feature (example, urethral stricture) that, in the opinion of the investigator, may prevent the safe insertion, indwelling use, removal of TAR-200 or administration of intravesical BCG. Participants with tumors involving the prostatic urethra in men will be excluded
- A history of clinically significant polyuria with recorded 24-hour urine volumes greater than 4000 milliliters (mL)
- Indwelling catheters are not permitted; however, intermittent catheterization is acceptable

Study & Design

• Study Type: Interventional
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
-Event-free Survival (EFS):Up to 5 years 2 months:EFS is defined as the time from randomization to either the time of the first recurrence of high-risk disease, progression, or death due to any cause, whichever occurs first. For participants with carcinoma In-situ (CIS), persistent disease at 6 months (Week 24) is also considered an EFS event. Progression is defined as: an increase of stage from Ta to T1 or from CIS to T1 or progression to muscle invasive bladder cancer (MIBC) (T greater than or equal to [>=] 2) or to lymph node (N+) or to distant disease (M+), whichever occurs first.