SELLAS Life Sciences Group, Inc. (NASDAQ: SLS) (“SELLAS’’ or the “Company”), a late-stage clinical biopharmaceutical company focused on the development of novel therapies for a broad range of cancer indications, announced results from a new preclinical in vitro study for its highly selective CDK9 inhibitor, GFH009, in neuroendocrine prostate cancer (NEPC). The data shows that GFH009 demonstrated significant anti-tumor effects in the selected cell line at nanomolar concentrations and, in certain samples, complete growth inhibition with no viable cancer cells.
NEPC, an aggressive variant of prostate cancer, is a rapidly growing indication which arises as a result of otherwise successful treatment of advanced prostate cancer. In up to 15 to 20 percent of patients treated with hormonal therapies for prostate adenocarcinoma, small-cell prostate cancer may develop in later stages of prostate cancer progression. This histologic transformation occurs as a mechanism of treatment resistance. Aggressive NEPC represents a lethal endpoint in the progression of prostate cancer from prostate adenocarcinoma to castration-resistant prostate cancer (CRPC) to NEPC. Median survival for NEPC patients whose cancer arose from prior prostate adenocarcinoma is estimated at only 5.4 months.
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