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Bayer to Present Data that Reinforce Established Prostate Cancer Portfolio at 2021 ASCO GU Cancers Symposium

·16 min read
  • New data presented from NUBEQA® (darolutamide) and Xofigo® (radium Ra 223 dichloride) studies demonstrate Bayer’s continued commitment to ongoing prostate cancer research across different stages of the disease

Abstracts: 240, 239, 217, TPS266, 105, 135, TPS182, 48, 98, TPS175, 136

Bayer announced today that new NUBEQA® (darolutamide) and Xofigo® (radium Ra 223 dichloride) data will be presented at the 2021 American Society of Clinical Oncology Genitourinary (ASCO GU) Cancers Symposium, taking place from February 11-13, 2021. Among featured presentations are additional Phase III ARAMIS trial analyses evaluating the crossover effect from placebo to NUBEQA and safety follow-up in men with non-metastatic castration-resistant prostate cancer (nmCRPC).

Prostate cancer is the second most commonly diagnosed cancer in men and a key area of focus for Bayer.1 The data that will be showcased at ASCO GU 2021 further build on the company’s ongoing research in areas of unmet need in this patient population. An oncology leader, Bayer’s prostate cancer portfolio is pivotal to the company’s wider commitment to exploring key areas of innovation, such as cell and gene therapy and targeted alpha therapies, with the ultimate goal to help people living with cancer.

"Our priority at Bayer is to advance the treatment of men with prostate cancer across the disease continuum. The focus of our data at ASCO GU 2021 is reflective of our patient-centric approach to prostate cancer research," said Scott Z. Fields, M.D., Senior Vice President and Head of Oncology Development at Bayer’s Pharmaceutical Division. "We look forward to presenting our newest research, which is encouraging for the prostate cancer community."

Notable data that will be presented at the meeting is listed below. More details on meeting registration can be found here.

Darolutamide

  • Analysis of the effect of crossover from placebo (PBO) to darolutamide (DARO) on overall survival (OS) benefit in the ARAMIS Trial

    • Abstract 240; February 11, 8:00am EST and 4:30pm EST

  • Safety of darolutamide (DARO) for nonmetastatic castration-resistant prostate cancer (nmCRPC) from extended follow-up in the phase III ARAMIS trial

    • Abstract 239; February 11, 8:00am EST

  • Frequency, management, and resource use of adverse events (AEs) in nonmetastatic castrate-resistant prostate cancer (nmCRPC) patients receiving apalutamide or enzalutamide: A real-world study

    • Abstract 217; February 11, 8:00am EST

  • DASL-HiCaP: Darolutamide and standard therapy for localized very high-risk cancer of the prostate (ANZUP1801)—A randomized phase III double-blind, placebo-controlled trial of adding darolutamide to androgen deprivation therapy and definitive or salvage radiation – Investigator-Initiated Research (IIR)

    • Abstract TPS266; February 11, 8:00am EST

Radium Ra 223 dichloride

  • Synergistic antitumor effect of radium-223 and enzalutamide in the intratibial LNCaP prostate cancer xenograft model

    • Abstract 105; February 11, 8:00am EST

  • Randomized phase II trial of radium-223 (RA) plus enzalutamide (EZ) versus EZ alone in metastatic castration-refractory prostate cancer (mCRPC): Final efficacy and safety results – Investigator-Initiated Research (IIR)

    • Abstract 135; February 11, 8:00am EST and 4:30pm EST

  • A phase I/II study of combination olaparib and radium-223 in men with metastatic castration-resistant prostate cancer with bone metastases (COMRADE): A trial in progress – Investigator-Initiated Research (IIR)

    • Abstract TPS182; February 11, 8:00am EST

  • Real-world clinical outcomes study of sequential novel antihormonal therapy (NAH) or radium-223 (Ra-223) treatment of metastatic castration-resistant prostate cancer (mCRPC) that progressed after first-line NAH

    • Abstract 48; February 11, 8:00am EST

  • Randomized phase II study evaluating the addition of pembrolizumab to radium-223 in metastatic castration-resistant prostate cancer – Investigator-Initiated Research (IIR)

    • Abstract 98; February 11, 8:00am EST

  • Fractionated docetaxel and radium-223 (Ra223) in metastatic castration-resistant prostate cancer (CRPC): A phase I trial – Investigator-Initiated Research (IIR)

    • Abstract TPS175; February 11, 8:00am EST

  • Clinical outcomes of patients with metastatic castration-resistant prostate cancer (mCRPC) receiving radium-223 (Ra-223) early versus late in the treatment sequence

    • Abstract 136; February 11, 8:00am EST

About NUBEQA® (darolutamide)2

NUBEQA is an androgen receptor inhibitor (ARi) with a distinct chemical structure that competitively inhibits androgen binding, AR nuclear translocation, and AR-mediated transcription.2 A Phase III study in metastatic hormone-sensitive prostate cancer (ARASENS) is ongoing. Information about this trial can be found at www.clinicaltrials.gov.

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 androgen deprivation therapy (ADT) alone. The primary efficacy endpoint was metastasis-free survival (MFS) and secondary endpoints include overall survival (OS), time to pain progression and time to initiation of cytotoxic chemotherapy.

Developed jointly by Bayer and Orion Corporation, a globally operating Finnish pharmaceutical company, NUBEQA is indicated for the treatment of men with nmCRPC.2 The approvals of NUBEQA in the U.S., European Union (EU), and other global markets have been based on the pivotal Phase III ARAMIS trial data evaluating the efficacy and safety of NUBEQA plus ADT compared to ADT alone.2 Filings in other regions are underway or planned.

INDICATION FOR NUBEQA (darolutamide)

NUBEQA® (darolutamide) is an androgen receptor inhibitor indicated for the treatment of patients with non-metastatic castration-resistant prostate cancer.

IMPORTANT SAFETY INFORMATION FOR NUBEQA (darolutamide)

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

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.

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%).

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 Combined P-gp and strong or moderate CYP3A4 inducers decrease NUBEQA exposure, which may decrease NUBEQA activity. Avoid concomitant use.

Combined P-gp and strong CYP3A4 inhibitors increase NUBEQA exposure, which may increase the risk of NUBEQA adverse reactions. Monitor more frequently and modify NUBEQA dose as needed.

Effects of NUBEQA on Other DrugsNUBEQA inhibits breast cancer resistance protein (BCRP) transporter. Concomitant use increases exposure (AUC) and maximal concentration of BCRP substrates, which may increase the risk of BCRP substrate-related toxicities. Avoid concomitant use where possible. If used together, monitor more frequently for adverse reactions, and consider dose reduction of the BCRP substrate.

NUBEQA inhibits OATP1B1 and OATP1B3 transporters. Concomitant use may increase plasma concentrations of OATP1B1 or OATP1B3 substrates. Monitor more frequently for adverse reactions and consider dose reduction of these substrates.

Review the prescribing information of drugs that are BCRP, OATP1B1, and OATP1B3 substrates when used concomitantly with NUBEQA.

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

About Xofigo® (radium Ra 223 dichloride) Injection3

Xofigo is indicated for the treatment of patients with castration-resistant prostate cancer, symptomatic bone metastases and no known visceral metastatic disease.

Important Safety Information for Xofigo® (radium Ra 223 dichloride) Injection

Warnings and Precautions:

  • Bone Marrow Suppression: In the phase 3 ALSYMPCA trial, 2% of patients in the Xofigo arm experienced bone marrow failure or ongoing pancytopenia, compared to no patients treated with placebo. There were two deaths due to bone marrow failure. For 7 of 13 patients treated with Xofigo bone marrow failure was ongoing at the time of death. Among the 13 patients who experienced bone marrow failure, 54% required blood transfusions. Four percent (4%) of patients in the Xofigo arm and 2% in the placebo arm permanently discontinued therapy due to bone marrow suppression. In the randomized trial, deaths related to vascular hemorrhage in association with myelosuppression were observed in 1% of Xofigo-treated patients compared to 0.3% of patients treated with placebo. The incidence of infection-related deaths (2%), serious infections (10%), and febrile neutropenia (<1%) was similar for patients treated with Xofigo and placebo. Myelosuppression–notably thrombocytopenia, neutropenia, pancytopenia, and leukopenia–has been reported in patients treated with Xofigo.

    Monitor patients with evidence of compromised bone marrow reserve closely and provide supportive care measures when clinically indicated. Discontinue Xofigo in patients who experience life-threatening complications despite supportive care for bone marrow failure

  • Hematological Evaluation: Monitor blood counts at baseline and prior to every dose of Xofigo. Prior to first administering Xofigo, the absolute neutrophil count (ANC) should be ≥1.5 × 109/L, the platelet count ≥100 × 109/L, and hemoglobin ≥10 g/dL. Prior to subsequent administrations, the ANC should be ≥1 × 109/L and the platelet count ≥50 × 109/L. Discontinue Xofigo if hematologic values do not recover within 6 to 8 weeks after the last administration despite receiving supportive care

  • Concomitant Use With Chemotherapy: Safety and efficacy of concomitant chemotherapy with Xofigo have not been established. Outside of a clinical trial, concomitant use of Xofigo in patients on chemotherapy is not recommended due to the potential for additive myelosuppression. If chemotherapy, other systemic radioisotopes, or hemibody external radiotherapy are administered during the treatment period, Xofigo should be discontinued

  • Increased Fractures and Mortality in Combination With Abiraterone Plus Prednisone/Prednisolone: Xofigo is not recommended for use in combination with abiraterone acetate plus prednisone/prednisolone outside of clinical trials. At the primary analysis of the Phase 3 ERA-223 study that evaluated concurrent initiation of Xofigo in combination with abiraterone acetate plus prednisone/prednisolone in 806 asymptomatic or mildly symptomatic mCRPC patients, an increased incidence of fractures (28.6% vs 11.4%) and deaths (38.5% vs 35.5%) have been observed in patients who received Xofigo in combination with abiraterone acetate plus prednisone/prednisolone compared to patients who received placebo in combination with abiraterone acetate plus prednisone/prednisolone. Safety and efficacy with the combination of Xofigo and agents other than gonadotropin-releasing hormone analogues have not been established

  • Embryo-Fetal Toxicity: The safety and efficacy of Xofigo have not been established in females. Xofigo can cause fetal harm when administered to a pregnant female. Advise pregnant females and females of reproductive potential of the potential risk to a fetus. Advise male patients to use condoms and their female partners of reproductive potential to use effective contraception during and for 6 months after completing treatment with Xofigo

Administration and Radiation Protection: Xofigo should be received, used, and administered only by authorized persons in designated clinical settings. The administration of Xofigo is associated with potential risks to other persons from radiation or contamination from spills of bodily fluids such as urine, feces, or vomit. Therefore, radiation protection precautions must be taken in accordance with national and local regulations

Fluid Status: Dehydration occurred in 3% of patients on Xofigo and 1% of patients on placebo. Xofigo increases adverse reactions such as diarrhea, nausea, and vomiting, which may result in dehydration. Monitor patients’ oral intake and fluid status carefully and promptly treat patients who display signs or symptoms of dehydration or hypovolemia

Injection Site Reactions: Erythema, pain, and edema at the injection site were reported in 1% of patients on Xofigo

Secondary Malignant Neoplasms: Xofigo contributes to a patient’s overall long-term cumulative radiation exposure. Long-term cumulative radiation exposure may be associated with an increased risk of cancer and hereditary defects. Due to its mechanism of action and neoplastic changes, including osteosarcomas, in rats following administration of radium-223 dichloride, Xofigo may increase the risk of osteosarcoma or other secondary malignant neoplasms. However, the overall incidence of new malignancies in the randomized trial was lower on the Xofigo arm compared to placebo (<1% vs 2%; respectively), but the expected latency period for the development of secondary malignancies exceeds the duration of follow-up for patients on the trial

Subsequent Treatment With Cytotoxic Chemotherapy: In the randomized clinical trial, 16% of patients in the Xofigo group and 18% of patients in the placebo group received cytotoxic chemotherapy after completion of study treatments. Adequate safety monitoring and laboratory testing was not performed to assess how patients treated with Xofigo will tolerate subsequent cytotoxic chemotherapy

Adverse Reactions: The most common adverse reactions (≥10%) in the Xofigo arm vs the placebo arm, respectively, were nausea (36% vs 35%), diarrhea (25% vs 15%), vomiting (19% vs 14%), and peripheral edema (13% vs 10%). Grade 3 and 4 adverse events were reported in 57% of Xofigo-treated patients and 63% of placebo-treated patients. The most common hematologic laboratory abnormalities in the Xofigo arm (≥10%) vs the placebo arm, respectively, were anemia (93% vs 88%), lymphocytopenia (72% vs 53%), leukopenia (35% vs 10%), thrombocytopenia (31% vs 22%), and neutropenia (18% vs 5%)

Please see the full Prescribing Information for Xofigo (radium Ra 223 dichloride).

About Prostate Cancer

Prostate cancer is the second most commonly diagnosed malignancy in men worldwide.1 In 2020, about 192,000 men in the U.S. were diagnosed with prostate cancer and an estimated 33,000 have died from the disease.4 Prostate cancer is the fifth leading cause of death from cancer in men.1 Prostate cancer results from the abnormal proliferation of cells within the prostate gland, which is part of a man’s reproductive system.5 It mainly affects men over the age of 50, and the risk increases with age.6

Treatment options range from surgery to radiation treatment to therapy using hormone-receptor antagonists, i.e., substances that stop the formation of testosterone or prevent its effect at the target location.7 However, in nearly all cases, the cancer eventually becomes resistant to conventional hormone therapy.8

Castration-resistant prostate cancer (CRPC) is an advanced form of the disease where the cancer keeps progressing even when the amount of testosterone is reduced to very low levels in the body. The field of treatment options for castration-resistant patients is evolving rapidly for CRPC patients who have prostate cancer that has not spread to other parts of the body with rising prostate-specific antigen (PSA) levels despite a castrate testosterone level, which is called non-metastatic castration-resistant prostate cancer, or nmCRPC.9,10 About one-third of men with nmCRPC go on to develop metastases within two years.11 In men with progressive nmCRPC, a short PSA doubling time is correlated with shortened time to first metastasis and death.10

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.

About Bayer

Bayer is a global enterprise with core competencies in the life science fields of health care and nutrition. Its products and services are designed to benefit people by supporting efforts to overcome the major challenges presented by a growing and aging global population. At the same time, the Group aims to increase its earning power and create value through innovation and growth. Bayer is committed to the principles of sustainable development, and the Bayer brand stands for trust, reliability and quality throughout the world. In fiscal 2019, the Group employed around 104,000 people and had sales of 43.5 billion euros. Capital expenditures amounted to 2.9 billion euros, R&D expenses to 5.3 billion euros. For more information, go to www.bayer.us.

© 2021 Bayer

BAYER, the Bayer Cross, NUBEQA and Xofigo are registered trademarks of Bayer.

Forward-Looking Statements

This release may contain forward-looking statements based on current assumptions and forecasts made by Bayer management. Various known and unknown risks, uncertainties and other factors could lead to material differences between the actual future results, financial situation, development or performance of the company and the estimates given here. These factors include those discussed in Bayer’s public reports which are available on the Bayer website at www.bayer.com. The company assumes no liability whatsoever to update these forward-looking statements or to conform them to future events or developments.

_______________________________________________________________________________________________

References

  1. GLOBOCAN 2018: Estimated Cancer Incidence, Mortality and Prevalence Worldwide in 2018. Prostate Cancer. https://onlinelibrary.wiley.com/doi/epdf/10.3322/caac.21492. Accessed January 2021.

  2. NUBEQA® (darolutamide) tablets [Prescribing Information]. Whippany, NJ: Bayer HealthCare Pharmaceuticals, January 2021.

  3. XOFIGO® (radium-223 dichloride) Injection [Prescribing Information]. Whippany, NJ: Bayer HealthCare Pharmaceuticals, December 2019.

  4. American Cancer Society. Cancer Facts & Figures 2020. https://www.cancer.org/content/dam/cancer-org/research/cancer-facts-and-statistics/annual-cancer-facts-and-figures/2020/cancer-facts-and-figures-2020.pdf. Accessed January 2021.

  5. American Cancer Society. What is Prostate Cancer? https://www.cancer.org/content/dam/CRC/PDF/Public/8793.00.pdf. Accessed January 2021.

  6. American Cancer Society. Prostate Cancer Risk Factors. https://www.cancer.org/content/dam/CRC/PDF/Public/8794.00.pdf. Accessed January 2021.

  7. National Cancer Institute. Hormone Therapy for Prostate Cancer. https://www.cancer.gov/types/prostate/prostate-hormone-therapy-fact-sheet. Accessed January 2021.

  8. Nakazawa, Mary; Paller, Channing; Kyprianou, Natasha. Mechanisms of Therapeutic Resistance in Prostate Cancer. Curr Oncol Rep (2017) 19:13.

  9. Mayo Clinic. Prostate cancer screening: Should you get a PSA test?. https://www.mayoclinic.org/tests-procedures/psa-test/in-depth/prostate-cancer/art-20048087. Accessed January 2021.

  10. Howard, Lauren; Moreira, Daniel M; DeHoedt, Amanda; Aronson, William J., et al. Thresholds for PSA doubling time in men with non-metastatic castration-resistant prostate cancer. BJU Int 2017;120: E80-E86.

  11. Kirby, Mike, Hirst, Ceri, Crawford. E. David. Characterising the castration-resistant prostate cancer population: a systematic review. Int J Clin Pract.2011;65(11):1180-1192. doi:10.1111/j.1742-1241.2011.02799.

PP-PF-ONC-US-1672-1 2/21

View source version on businesswire.com: https://www.businesswire.com/news/home/20210208005889/en/

Contacts

Rose Talarico, Tel. +1 862.404.5302
E-Mail: rose.talarico@bayer.com