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Targeted Inhibition of CYP11A1 in Castration-Resistant Prostate Cancer.


ABSTRACT: Targeted Inhibition of CYP11A1 in Prostate CancerIn this single-arm, multicenter, combined phase 1 and phase 2 study, patients with metastatic prostate adenocarcinoma with progression on prior androgen receptor pathway inhibitors and taxane-based chemotherapy were treated with ODM-208. A decrease in prostate-specific antigen levels of 50% or more occurred in 16/42 (38.1%) and 24/45 (53.3%) in phase 1 and 2 respectively. Responses mainly occurred in patients with androgen receptor mutations. Adrenal insufficiency was the dose-limiting toxicity.

SUBMITTER: Fizazi K 

PROVIDER: S-EPMC10852404 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature

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BACKGROUND: Prostate cancer is regulated by steroid hormones, even in castration-resistant disease. ODM-208, a novel inhibitor of cytochrome P450 11A1 (which catalyzes the first step of steroid-hormone biosynthesis), was investigated in patients with heavily pretreated metastatic castration-resistant prostate cancer (mCRPC). METHODS: CYPIDES is a first-in-human phase 1 (3 + 3 design) and phase 2 study. We administered ODM-208 twice daily with glucocorticoid/mineralocorticoid replacement and ongo  ...[more]

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