Darolutamide in Combination With Androgen-Deprivation Therapy in Patients With Metastatic Hormone-Sensitive Prostate Cancer From the Phase III ARANOTE Trial

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PURPOSE: For patients with metastatic hormone-sensitive prostate cancer (mHSPC), delaying progression to castration-resistant disease is important not only for overall survival (OS) but also for patients' quality of life. Darolutamide plus androgen-deprivation therapy (ADT) with docetaxel improved OS versus ADT and docetaxel in patients with mHSPC. The ARANOTE trial evaluated darolutamide and ADT without chemotherapy in patients with mHSPC. METHODS: In this global phase III trial, patients were randomly assigned 2:1 to receive darolutamide 600 mg twice daily or placebo, with concomitant ADT. The primary end point was radiological progression-free survival (rPFS). RESULTS: < .0001), with consistent benefits across subgroups, including high- and low-volume disease. OS results were suggestive of benefit with darolutamide versus placebo (HR, 0.81 [95% CI, 0.59 to 1.12]), and clinical benefits were seen across all other secondary end points, including delayed time to metastatic castration-resistant prostate cancer (HR, 0.40 [95% CI, 0.32 to 0.51]) and time to pain progression (HR, 0.72 [95% CI, 0.54 to 0.96]). Adverse events were similar in the two groups. Notably, the incidence of fatigue was lower in patients receiving darolutamide (5.6%) versus those receiving placebo (8.1%), and fewer patients receiving darolutamide (6.1%) versus placebo (9.0%) discontinued treatment because of adverse events. CONCLUSION: These results confirm the efficacy and tolerability of darolutamide plus ADT in patients with mHSPC, demonstrating clinically and statistically significant improvement in rPFS and a favorable safety profile consistent with prior phase III darolutamide trials.

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