期刊
INVESTIGATIVE AND CLINICAL UROLOGY
卷 62, 期 4, 页码 361-377出版社
KOREAN UROLOGICAL ASSOC
DOI: 10.4111/icu.20200602
关键词
Antibody-drug conjugate; Bacillus Calmette-Guerin; Immune checkpoint inhibitors; Oncolytic virotherapy; Urinary bladder neoplasms
资金
- National Cancer Center, Korea [NCC-1810866]
Intravesical BCG immunotherapy is the gold standard adjuvant treatment for non-muscle-invasive bladder cancer, but there is a critical need for alternative bladder-sparing strategies in patients with BCG-unresponsiveness. Ongoing trials and testing of novel agents are aimed at addressing this unmet need.
Intravesical bacillus Calmette-Guerin (BCG) immunotherapy has been the gold standard adjuvant treatment for intermediate-and high-risk non-muscle-invasive bladder cancer (NMIBC) after transurethral resection of bladder tumor (TURBT). BCG immunotherapy prevents disease recurrence and progression to muscle-invasive disease following TURBT. Although most patients initially respond well to intravesical BCG, considerable concern has been raised for patients with BCG failure who are refractory or recur in 6 months after their last BCG, which implies `BCG-unresponsiveness'. Based on current clinical guidelines, early radical cystectomy (RC) is recommended to treat BCG-unresponsive NMIBC. However, due to the high risk of morbidity and mortality of RC and patients' desire to preserve their own bladder, there is a critical unmet need for alternative conservative treatments as bladder-sparing strategies in BCG-unresponsive patients. Trials for effective bladder-sparing treatments are ongoing, and several novel agents have been recently tested in the NMIBC setting. The goal of this review is to introduce and summarize recently reported novel and emerging drugs and ongoing clinical trials for BCG-unresponsive NMIBC.
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