Friday, July 7, 2023

Immunotherapy combinations for metastatic castration-resista... : Current Opinion in Urology

Immunotherapy combinations for metastatic castration-resista... : Current Opinion in Urology:

REVIEW

Immunotherapy combinations for metastatic castration-resistant prostate cancer – failed trials and future aspects

Memorial Sloan-Kettering Cancer Center, New York, New York, USA

Correspondence to Susan F. Slovin, MD, PhD, Genitourinary Oncology Service, Sidney Kimmel Center for Prostate and Urologic Cancers, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, NY, New York 10065, USA. Tel: +646 422 4470; fax: +212 988 0701; e-mail: slovins@mskcc.org

Current Opinion in Urology ():10.1097/MOU.0000000000001115, July 03, 2023. | DOI: 10.1097/MOU.0000000000001115

Abstract

Purpose of review 

Immunotherapy, a treatment modality currently synonymous with immune checkpoint blockade remains a challenge for prostate cancer. Despite multiple phase 3 trials using checkpoint inhibitors in combinatorial approaches, there have been no benefits to date in overall survival or radiographic progression free survival. However, newer strategies prevail that are directed to a variety of unique cell surface antigens. These strategies include unique vaccines, chimeric antigen receptor (CAR) T, bispecific T cell engager platforms, and antibody-drug conjugates.

Recent findings 

New antigens are being targeted by various immunologic strategies. These antigens are pan-carcinoma as they may be expressed on a variety of cancers but remains effective targets for therapeutic attack.

Summary 

Immunotherapy with checkpoint inhibitors alone or in combination with a variety of agents such as chemotherapy, poly-ADP ribose polymerase (PARP) inhibitors or novel biologics have met with failure in the endpoints of overall survival (OS) and radiographic progresson-free survival (rPFS). Despite these efforts, other immunologic efforts to develop unique tumor-targeted strategies should be continued.

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