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- Title
Dramatic response to combination pembrolizumab and radiation in metastatic castration resistant prostate cancer.
- Authors
Han, Harry J.; Li, Yun Rose; Roach III, Mack; Aggarwal, Rahul
- Abstract
Immune checkpoint inhibitors targeting PD-1 and PD-L1 have demonstrated anti-tumor activity in several advanced solid malignancies. In previously treated metastatic castration resistant prostate cancer (mCRPC), a small subset of patients have a therapeutic response to checkpoint inhibition. Those who do respond to anti-PD-1/PD-L1 therapy have a marked, durable response to treatment, suggesting some derive long-term benefit from immune checkpoint blockade. In other cancers, one strategy to increase the efficacy of immune checkpoint blockade is to combine it with a pro-immune stimulatory agent, such as radiation. Here we present a case of a patient with heavily treated mCRPC who had a significant tumor response to concurrent pembrolizumab and radiation therapy to the primary prostatic mass. We review the growing evidence supporting the use of this combination therapy in other cancers and its potential benefit and safety in mCRPC. Our report highlights a potential therapeutic approach that should be further investigated in previously treated mCRPC.
- Publication
Therapeutic Advances in Medical Oncology, 2020, p1
- ISSN
1758-8340
- Publication type
Article
- DOI
10.1177/1758835920936084