Docetaxel or Cabazitaxel With or Without Darolutamide in mCRPC

Taxane efficacy in metastatic prostate cancer is modest due to resistance development. Several clinical phase III studies in metastatic castration-naïve prostate cancer (mCNPC) patients have shown that adding an androgen receptor signalling inhibitor (ARSi) to patients receiving a taxane and androgen deprivation therapy (ADT) improves survival endpoints. Adding ARSi darolutamide to docetaxel+ADT in mCNPC patients resulted in a robust OS benefit (HR 0.68). Importantly, the combination of a taxane and darolutamide is not prone to a drug-drug interaction, while there is a detrimental CYP3A4 inducing effect in the case of enzalutamide, resulting in a significant and clinically relevant reduction of cabazitaxel plasma concentrations. The investigators have previously reported preclinical data showing that addition of an androgen receptor signaling inhibitor (ARSi) improves cabazitaxel efficacy, even in metastatic castration-resistant prostate cancer (mCRPC). As treatment options for mCRPC) patients are scarce and patients often develop drug resistance relatively early, a new treatment regimen for this population to delay drug resistance is highly desired. The investigators propose a randomized phase II trial to investigate the efficacy of docetaxel or cabazitaxel plus darolutamide compared to docetaxel or cabazitaxel monotherapy in men with metastatic CRPC, who have progressed on an ARSI.

This description comes directly from the study's public registry record.

Tanja van Dijk  ·  0031107040704  ·  interne.oncologie@erasmusmc.nl

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