Phase II trial of SM 88 in non-metastatic biochemical recurrent prostate cancer.
2018
175Background: Despite toxicity and no clear survival benefit, non-metastatic recurrent prostate cancer (nmPC) is typically treated with androgen deprivation therapy (ADT). SM88 is a relatively non-toxic novel combination therapy (amino acid analogue, CYP3a4 inducer, mTOR inhibitor and catalyst) based on the Warburg effect, with activity in a variety of cancers including prostate (JCO 2017 35, e16567). Phase I and II results demonstrated stable or rising testosterone levels while achieving a reduction of CTCs (circulating tumor cells) and no radiographic progression events (Annal Oncol 2017, 28(5):274-5). We now report results for toxicities typically seen with ADT. Methods: Prospective ongoing Phase Ib/II of SM88 (230mg po bid) in recurrent nmPC with rising PSA (PCWG3 definition), detectable CTCs, and no radiographically identified metastases at baseline. Results: Since Sept 2016, there have been 17 consented (of 34 planned) with 10 evaluable (completed > 1 cycle) (median 7, range 1-13). Mean age was 71....
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