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Evaluating immune responses after sipuleucel-T therapy.


ABSTRACT: Following FDA approval of sipuleucel-T in 2010 for metastatic castration resistant prostate cancer (mCRPC), several studies have described the effect of sipuleucel-T on peripheral immune responses. Retrospective associations have also been made with immune responses and survival. A recently published study by Fong et al. was the first to characterize the immune response of sipuleucel-T in the tumor microenvironment. The findings of this study have been hypothesis generating, yet it remains unclear whether the peri-tumor immune response described is predictive of survival. Increasing evidence suggests that radiographic or PSA progression does not accurately reflect survival with sipuleucel-T and other immunotherapies. Finding an immune biomarker which can accurately reflect clinical benefit and validating it prospectively offers the potential for a predictive indicator of response in an area where none currently exists.

SUBMITTER: Strauss J 

PROVIDER: S-EPMC4622939 | biostudies-literature | 2015

REPOSITORIES: biostudies-literature

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Evaluating immune responses after sipuleucel-T therapy.

Strauss Julius J   Madan Ravi A RA   Figg William D WD  

Cancer biology & therapy 20150608 8


Following FDA approval of sipuleucel-T in 2010 for metastatic castration resistant prostate cancer (mCRPC), several studies have described the effect of sipuleucel-T on peripheral immune responses. Retrospective associations have also been made with immune responses and survival. A recently published study by Fong et al. was the first to characterize the immune response of sipuleucel-T in the tumor microenvironment. The findings of this study have been hypothesis generating, yet it remains uncle  ...[more]

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