Orion’s and Bayer’s darolutamide shows substantial efficacy and a favourable safety profile in the treatment of prostate cancer in the ARAMIS trial.
First results from the Phase III ARAMIS trial with the androgen receptor antagonist darolutamide were presented in an oral presentation at American Society of Clinical Oncology Genitourinary Cancers Symposium and simultaneously published in The New England Journal of Medicine.
Results from the pivotal Phase III ARAMIS trial in patients with non-metastatic castration-resistant prostate cancer (nmCRPC) showed a statistically significant improvement in metastasis-free survival (MFS) with darolutamide plus standard of care (ADT) compared to placebo plus ADT (HR=0.41, 95% CI 0.34-0.50; P<0.001). This translates to a 59 percent reduction in the risk of metastasis or death. The median MFS was 40.4 months in the darolutamide arm compared with 18.4 months for the placebo arm – an overall improvement in median MFS of 22 months.
A positive trend in overall survival (OS) was also observed (HR=0.71, 95% CI 0.50-0.99; P=0.045), and all other secondary endpoints demonstrated a benefit in favor of darolutamide. Importantly, the incidence of treatment-emergent adverse events (AEs) with greater than or equal to 5 percent frequency or of grade 3-5 was comparable between darolutamide and placebo arms; only fatigue occurred in more than 10 percent of patients (darolutamide plus ADT resulted in 12.1 percent versus 8.7 percent in patients with placebo plus ADT). Quality of life outcomes were similar between the treatment groups.
One step closer
“Prostate cancer patients are still in need of treatments that are not only effective but also safe without adverse events that would compromise their quality of life. Orion is working hard to bring innovative treatments to cancer patients. With the positive results of ARAMIS trial we together with Bayer are one step closer of bringing darolutamide to patients and their treating physicians”, said Christer Nordstedt, PhD, MD, Senior Vice President, Research and Development, Orion Corporation.
Bayer plans to discuss the data from the ARAMIS trial with health authorities regarding the submission of new drug applications. Bayer has been granted Fast Track designation by the U.S. Food and Drug Administration (FDA) for darolutamide in men with nmCRPC. Darolutamide is being developed jointly by Bayer and Orion Corporation.
Photo of Christer Nordstedt: Orion