On January 30, 2020 Bayer reported that results from the preplanned final overall survival analysis of the Phase III ARAMIS (Androgen Receptor inhibiting Agent for MetastatIc-free Survival) trial that investigated NUBEQA (darolutamide) in men with non-metastatic castration-resistant prostate cancer (nmCRPC) show a significant improvement in overall survival (OS) in patients receiving NUBEQA plus androgen deprivation therapy (ADT) compared to placebo plus ADT (Press release, Bayer, JAN 30, 2020, View Source [SID1234553712]). Results of ARAMIS previously published show a statistically significant improvement in the primary efficacy endpoint of metastasis-free survival (MFS) of darolutamide plus ADT compared to placebo plus ADT; however OS data were not yet mature at the time of the MFS analysis. Detailed data on the updated OS and other additional endpoints as well as an update on longer term safety will be presented at an upcoming scientific meeting.

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NUBEQA, an oral androgen receptor inhibitor (ARi), has been approved in the U.S., Brazil, and Japan, and filings in the European Union and other regions are underway or planned. The compound is developed jointly by Bayer and Orion Corporation, a globally operating Finnish pharmaceutical company.

About NUBEQA (darolutamide)

On July 30th, 2019, the FDA approved NUBEQA (darolutamide) based on the ARAMIS trial, a randomized, double-blind, placebo-controlled, multi-center Phase III study, which evaluated the safety and efficacy of oral NUBEQA in patients with nmCRPC who were receiving a concomitant gonadotropin-releasing hormone (GnRH) analog or had a bilateral orchiectomy. In the clinical study, 1,509 patients were randomized in a 2:1 ratio to receive 600 mg of NUBEQA orally twice daily or placebo plus ADT. The primary efficacy endpoint was MFS, defined as the time from randomization to the time of first evidence of blinded independent central review (BICR)-confirmed distant metastasis or death due to any cause within 33 weeks after the last evaluable scan, whichever occurred first. NUBEQA plus ADT demonstrated a statistically significant improvement in MFS, with a median MFS of 40.4 months versus 18.4 months with placebo plus ADT [HR=0.41, 95% CI (0.34, 0.50), p<0.0001].

Adverse reactions occurring more frequently in the NUBEQA arm (≥2 % over placebo) were fatigue (16% versus 11%), pain in extremity (6% versus 3%) and rash (3% versus 1%). NUBEQA was not studied in women and there is a warning and precaution for embryo-fetal toxicity.

NUBEQA is an androgen receptor inhibitor (ARi) with a distinct chemical structure that competitively inhibits androgen binding, AR nuclear translocation, and AR-mediated transcription.1 A Phase III study in metastatic hormone-sensitive prostate cancer (ARASENS) is ongoing. Information about this trial can be found at www.clinicaltrials.gov.

INDICATION

NUBEQA is approved for the treatment of patients with non-metastatic castration-resistant prostate cancer (nmCRPC).1

IMPORTANT SAFETY INFORMATION

Embryo-Fetal Toxicity: Safety and efficacy of NUBEQA have not been established in females. NUBEQA can cause fetal harm and loss of pregnancy. Advise males with female partners of reproductive potential to use effective contraception during treatment with NUBEQA and for 1 week after the last dose.

Adverse Reactions

Adverse reactions occurring more frequently in the NUBEQA arm (≥2% over placebo) were fatigue (16% vs. 11%), pain in extremity (6% vs. 3%) and rash (3% vs. 1%).

Serious adverse reactions occurred in 25% of patients receiving NUBEQA and in 20% of patients receiving placebo. Serious adverse reactions in ≥ 1 % of patients who received NUBEQA were urinary retention, pneumonia, and hematuria. Overall, 3.9% of patients receiving NUBEQA and 3.2% of patients receiving placebo died from adverse reactions, which included death (0.4%), cardiac failure (0.3%), cardiac arrest (0.2%), general physical health deterioration (0.2%), and pulmonary embolism (0.2%) for NUBEQA.

Clinically significant adverse reactions occurring in ≥ 2% of patients treated with NUBEQA included ischemic heart disease (4.0% vs. 3.4% on placebo) and heart failure (2.1% vs. 0.9% on placebo).

Drug Interactions

Effect of Other Drugs on NUBEQA – Concomitant use of NUBEQA with a combined P-gp and strong or moderate CYP3A4 inducer decreases darolutamide exposure, which may decrease NUBEQA activity. Avoid concomitant use of NUBEQA with combined P-gp and strong or moderate CYP3A4 inducers.

Concomitant use of NUBEQA with a combined P-gp and strong CYP3A4 inhibitor increases darolutamide exposure, which may increase the risk of NUBEQA adverse reactions. Monitor patients more frequently for NUBEQA adverse reactions and modify NUBEQA dosage as needed.

Effects of NUBEQA on Other Drugs – NUBEQA is an inhibitor of breast cancer resistance protein (BCRP) transporter. Concomitant use of NUBEQA increases the exposure (AUC) and maximal concentration of BCRP substrates, which may increase the risk of BCRP substrate-related toxicities. Avoid concomitant use with drugs that are BCRP substrates where possible. If used together, monitor patients more frequently for adverse reactions, and consider dose reduction of the BCRP substrate drug. Consult the approved product labeling of the BCRP substrate when used concomitantly with NUBEQA.

For important risk and use information about NUBEQA, please see the accompanying full Prescribing Information.

About Oncology at Bayer

Bayer is committed to delivering science for a better life by advancing a portfolio of innovative treatments. The oncology franchise at Bayer now expands to six marketed products and several other assets in various stages of clinical development. Together, these products reflect the company’s approach to research, which prioritizes targets and pathways with the potential to impact the way that cancer is treated.