LYNPARZA® (olaparib) plus abiraterone approved in the US for the treatment of BRCA-mutated metastatic castration-resistant prostate cancer
LYNPARZA combination reduced the risk of disease progression or death by
First PARP inhibitor approved in combination with a novel hormonal agent underscores clinically meaningful benefit of new treatment approach
This approval was based on a subgroup analysis of the Phase III PROpel trial which showed that LYNPARZA plus abiraterone demonstrated highly clinically meaningful improvements in both radiographic progression-free survival (rPFS) (HR of 0.24,
Prostate cancer is the second-most common cancer in men and despite an increase in the number of available therapies for patients with mCRPC, five-year survival remains low.2,3 Approximately
Andrew
Dave Fredrickson, Executive Vice President, Oncology Business Unit, AstraZeneca, said: “There is a critical unmet need for new first-line treatment options for patients with BRCA-mutated metastatic castration-resistant prostate cancer and this approval underscores the importance of BRCA testing at metastatic diagnosis. We look forward to bringing the benefit of this LYNPARZA combination to patients earlier in their treatment.”
Eliav Barr, Senior Vice President, Head of Global Clinical Development and Chief Medical Officer, MSD Research Laboratories, said: “It is imperative that we create new ways to treat advanced cancers and help improve patient outcomes by building on the current standard of care. In PROpel, the LYNPARZA combination improved radiographic progression-free survival and overall survival for the subgroup of patients with BRCA-mutated metastatic castration-resistant prostate cancer. This approval reinforces the importance of routine testing for genetic mutations at metastatic diagnosis to help guide clinical decisions.”
The safety and tolerability profile of LYNPARZA plus abiraterone in PROpel was in line with that observed in prior clinical trials and the known profiles of the individual medicines.
LYNPARZA in combination with abiraterone and prednisone or prednisolone is approved in the European Union (EU) and several other countries for the treatment of adult patients with mCRPC based on the PROpel trial.
LYNPARZA is already approved in the US based on results from the PROfound Phase III trial as monotherapy for patients with homologous recombination repair (HRR) gene-mutated mCRPC (BRCAm and other HRR gene mutations) who have progressed following prior treatment with enzalutamide or abiraterone; and in the EU,
Financial considerations
Following this approval for LYNPARZA in the US, AstraZeneca will receive a regulatory milestone payment from Merck & Co, anticipated to be booked as Collaboration Revenue by the Company and confirmed in the second quarter 2023 results.
IMPORTANT SAFETY INFORMATION
CONTRAINDICATIONS
There are no contraindications for LYNPARZA.
WARNINGS AND PRECAUTIONS
Myelodysplastic Syndrome/Acute Myeloid Leukemia (MDS/AML): Occurred in approximately
Do not start LYNPARZA until patients have recovered from hematological toxicity caused by previous chemotherapy (≤Grade 1). Monitor complete blood count for cytopenia at baseline and monthly thereafter for clinically significant changes during treatment. For prolonged hematological toxicities, interrupt LYNPARZA and monitor blood count weekly until recovery.
If the levels have not recovered to Grade 1 or less after 4 weeks, refer the patient to a hematologist for further investigations, including bone marrow analysis and blood sample for cytogenetics. Discontinue LYNPARZA if MDS/AML is confirmed.
Pneumonitis: Occurred in
Venous Thromboembolism (VTE): Including severe or fatal pulmonary embolism (PE) occurred in patients treated with LYNPARZA. In the combined data of two randomized, placebo-controlled clinical studies (PROfound and PROpel) in patients with metastatic castration-resistant prostate cancer (N=1180), VTE occurred in
Embryo-Fetal Toxicity: Based on its mechanism of action and findings in animals, LYNPARZA can cause fetal harm. Verify pregnancy status in females of reproductive potential prior to initiating treatment.
Females
Advise females of reproductive potential of the potential risk to a fetus and to use effective contraception during treatment and for 6 months following the last dose.
Males
Advise male patients with female partners of reproductive potential or who are pregnant to use effective contraception during treatment and for 3 months following the last dose of LYNPARZA and to not donate sperm during this time.
ADVERSE REACTIONS—First-Line Maintenance BRCAm Advanced Ovarian Cancer
Most common adverse reactions (Grades 1-4) in ≥
Most common laboratory abnormalities (Grades 1-4) in ≥
ADVERSE REACTIONS—First-Line Maintenance Advanced Ovarian Cancer in Combination with Bevacizumab
Most common adverse reactions (Grades 1-4) in ≥
In addition, venous thromboembolic events occurred more commonly in patients receiving LYNPARZA/bevacizumab (
Most common laboratory abnormalities (Grades 1-4) in ≥
ADVERSE REACTIONS—Maintenance Recurrent Ovarian Cancer
Most common adverse reactions (Grades 1-4) in ≥
Study 19: nausea (
Most common laboratory abnormalities (Grades 1-4) in ≥
ADVERSE REACTIONS—Adjuvant Treatment of gBRCAm, HER2-Negative, High-Risk Early Breast Cancer
Most common adverse reactions (Grades 1-4) in ≥
Most common laboratory abnormalities (Grades 1-4) in ≥
ADVERSE REACTIONS—gBRCAm, HER2-Negative Metastatic Breast Cancer
Most common adverse reactions (Grades 1-4) in ≥
Most common laboratory abnormalities (Grades 1-4) in ≥
ADVERSE REACTIONS—First-Line Maintenance gBRCAm Metastatic Pancreatic Adenocarcinoma
Most common adverse reactions (Grades 1-4) in ≥
Most common laboratory abnormalities (Grades 1-4) in ≥
ADVERSE REACTIONS—HRR Gene-mutated Metastatic Castration-Resistant Prostate Cancer
Most common adverse reactions (Grades 1-4) in ≥
Most common laboratory abnormalities (Grades 1-4) in ≥
ADVERSE REACTIONS—Metastatic Castration-Resistant Prostate Cancer in Combination with Abiraterone and Prednisone or Prednisolone
Most common adverse reactions (Grades 1-4) in ≥
Most common laboratory abnormalities (Grades 1-4) in ≥
DRUG INTERACTIONS
Anticancer Agents: Clinical studies of LYNPARZA with other myelosuppressive anticancer agents, including DNA-damaging agents, indicate a potentiation and prolongation of myelosuppressive toxicity.
CYP3A Inhibitors: Avoid coadministration of strong or moderate CYP3A inhibitors when using LYNPARZA. If a strong or moderate CYP3A inhibitor must be coadministered, reduce the dose of LYNPARZA. Advise patients to avoid grapefruit, grapefruit juice,
CYP3A Inducers: Avoid coadministration of strong or moderate CYP3A inducers when using LYNPARZA.
USE IN SPECIFIC POPULATIONS
Lactation: No data are available regarding the presence of olaparib in human milk, its effects on the breastfed infant or on milk production. Because of the potential for serious adverse reactions in the breastfed infant, advise a lactating woman not to breastfeed during treatment with LYNPARZA and for 1 month after receiving the final dose.
Pediatric Use: The safety and efficacy of LYNPARZA have not been established in pediatric patients.
Hepatic Impairment: No adjustment to the starting dose is required in patients with mild or moderate hepatic impairment (Child-Pugh classification A and B). There are no data in patients with severe hepatic impairment (Child-Pugh classification C).
Renal Impairment: No dosage modification is recommended in patients with mild renal impairment (CLcr 51-80 mL/min estimated by Cockcroft-Gault). In patients with moderate renal impairment (CLcr 31-50 mL/min), reduce the dose of LYNPARZA to 200 mg twice daily. There are no data in patients with severe renal impairment or end-stage renal disease (CLcr ≤30 mL/min).
INDICATIONS
LYNPARZA is a poly (ADP-ribose) polymerase (PARP) inhibitor indicated:
First-Line Maintenance BRCAm Advanced Ovarian Cancer
For the maintenance treatment of adult patients with deleterious or suspected deleterious germline or somatic BRCA-mutated (gBRCAm or sBRCAm) advanced epithelial ovarian, fallopian tube, or primary peritoneal cancer who are in complete or partial response to first-line platinum-based chemotherapy. Select patients for therapy based on an FDA-approved companion diagnostic for LYNPARZA.
First-Line Maintenance HRD-Positive Advanced Ovarian Cancer in Combination with Bevacizumab
In combination with bevacizumab for the maintenance treatment of adult patients with advanced epithelial ovarian, fallopian tube or primary peritoneal cancer who are in complete or partial response to first-line platinum-based chemotherapy and whose cancer is associated with homologous recombination deficiency (HRD)-positive status defined by either:
- a deleterious or suspected deleterious BRCA mutation, and/or
- genomic instability
Select patients for therapy based on an FDA-approved companion diagnostic for LYNPARZA.
Maintenance Recurrent Ovarian Cancer
For the maintenance treatment of adult patients with recurrent epithelial ovarian, fallopian tube, or primary peritoneal cancer, who are in complete or partial response to platinum-based chemotherapy.
Adjuvant Treatment of gBRCAm, HER2-Negative, High-Risk Early Breast Cancer
For the adjuvant treatment of adult patients with deleterious or suspected deleterious gBRCAm, human epidermal growth factor receptor 2 (HER2)-negative, high-risk early breast cancer who have been treated with neoadjuvant or adjuvant chemotherapy. Select patients for therapy based on an FDA-approved companion diagnostic for LYNPARZA.
gBRCAm, HER2-Negative Metastatic Breast Cancer
For the treatment of adult patients with deleterious or suspected deleterious gBRCAm, human epidermal growth factor receptor 2 (HER2)-negative metastatic breast cancer who have been treated with chemotherapy in the neoadjuvant, adjuvant, or metastatic setting. Patients with hormone receptor (HR)-positive breast cancer should have been treated with a prior endocrine therapy or be considered inappropriate for endocrine therapy. Select patients for therapy based on an FDA-approved companion diagnostic for LYNPARZA.
First-Line Maintenance gBRCAm Metastatic Pancreatic Cancer
For the maintenance treatment of adult patients with deleterious or suspected deleterious gBRCAm metastatic pancreatic adenocarcinoma whose disease has not progressed on at least 16 weeks of a first-line platinum-based chemotherapy regimen. Select patients for therapy based on an FDA-approved companion diagnostic for LYNPARZA.
HRR Gene-mutated Metastatic Castration-Resistant Prostate Cancer
For the treatment of adult patients with deleterious or suspected deleterious germline or somatic homologous recombination repair (HRR) gene-mutated metastatic castration-resistant prostate cancer (mCRPC) who have progressed following prior treatment with enzalutamide or abiraterone. Select patients for therapy based on an FDA-approved companion diagnostic for LYNPARZA.
BRCAm Metastatic Castration-Resistant Prostate Cancer in Combination with Abiraterone and Prednisone or Prednisolone
In combination with abiraterone and prednisone or prednisolone (abi/pred) for the treatment of adult patients with deleterious or suspected deleterious BRCA-mutated (BRCAm) metastatic castration-resistant prostate cancer (mCRPC). Select patients for therapy based on an FDA-approved companion diagnostic for LYNPARZA.
Please see complete Prescribing Information, including Medication Guide.
Notes
Prostate cancer
Prostate cancer is the second most commonly diagnosed cancer in men and the fifth leading cause of cancer death in men globally, with an incidence of 1.4 million and 375,000 deaths in 2020.2,3 In the US, it is estimated that there will be 288,300 new cases and 34,700 deaths in 2023.6 Overall survival for patients with mCRPC is approximately three years in clinical trial settings, and even shorter in the real-world.7 Approximately half of patients with mCRPC may receive only one line of active treatment, and those that go on to receive further treatment often have diminishing benefit of subsequent therapies.8-13
Metastatic castration-resistant prostate cancer
Metastatic prostate cancer is associated with a significant mortality rate.14 Development of prostate cancer is often driven by male sex hormones called androgens, including testosterone.15
In patients with mCRPC, their prostate cancer grows and spreads to other parts of the body despite the use of androgen-deprivation therapy to block the action of male sex hormones.16 Approximately 10
Despite the advances in mCRPC treatment in the past decade with taxane and novel hormonal agent (NHA) treatment, there is high unmet need in this population.16-19
PROpel
PROpel is a randomized, double-blind, multi-center Phase III trial testing the efficacy, safety, and tolerability of LYNPARZA versus placebo when given in combination with abiraterone, as well as prednisone or prednisolone, in men with mCRPC who had not received prior chemotherapy or NHAs in the mCRPC setting.
The primary endpoint is rPFS and secondary endpoints include OS, time to secondary progression or death, and time to first subsequent therapy. In September 2021 at a planned interim analysis, the Independent Data Monitoring Committee concluded that the PROpel trial met the primary endpoint of rPFS.
For more information about the trial please visit ClinicalTrials.gov.
LYNPARZA
LYNPARZA® (olaparib) is a first-in-class PARP inhibitor and the first targeted treatment to block DNA damage response (DDR) in cells/tumors harboring a deficiency in HRR, such as those with mutations in BRCA1 and/or BRCA2, or those where deficiency is induced by other agents (such as NHAs).
Inhibition of PARP with LYNPARZA leads to the trapping of PARP bound to DNA single-strand breaks, stalling of replication forks, their collapse and the generation of DNA double-strand breaks and cancer cell death.
LYNPARZA is currently approved in a number of countries across multiple tumor types including maintenance treatment of platinum-sensitive relapsed ovarian cancer and as both monotherapy and in combination with bevacizumab for the 1st-line maintenance treatment of BRCA-mutated (BRCAm) and homologous recombination repair deficient (HRD)-positive advanced ovarian cancer, respectively; for gBRCAm, HER2-negative metastatic breast cancer (in the EU and
LYNPARZA, which is being jointly developed and commercialized by AstraZeneca and Merck & Co., Inc., known as MSD outside the US and
The AstraZeneca and Merck strategic oncology collaboration
In July 2017, AstraZeneca and Merck & Co., Inc.,
Working together, the companies will develop LYNPARZA and KOSELUGO and other potential new medicines as monotherapies and as combinations. The companies will also develop LYNPARZA and KOSELUGO in combination with their respective PD-L1 and PD-1 medicines independently.
AstraZeneca in oncology
AstraZeneca is leading a revolution in oncology with the ambition to provide cures for cancer in every form, following the science to understand cancer and all its complexities to discover, develop and deliver life-changing medicines to patients.
The Company's focus is on some of the most challenging cancers. It is through persistent innovation that AstraZeneca has built one of the most diverse portfolios and pipelines in the industry, with the potential to catalyze changes in the practice of medicine and transform the patient experience.
AstraZeneca has the vision to redefine cancer care and, one day, eliminate cancer as a cause of death.
About AstraZeneca
AstraZeneca is a global, science-led biopharmaceutical company that focuses on the discovery, development and commercialization of prescription medicines in Oncology, Rare Diseases and BioPharmaceuticals, including Cardiovascular, Renal & Metabolism, and Respiratory & Immunology. Based in
References
- Clarke N, et al. Abiraterone and Olaparib for Metastatic Castration-Resistant Prostate Cancer. NEJM Evid. 2022;1(9).
- Cancer.Net. Prostate Cancer: Statistics. Available at https://www.cancer.net/cancer-types/prostate-cancer/statistics. Accessed March 2023.
- Rawla P. Epidemiology of Prostate Cancer. World J Oncol. 2019; 10(2):63-89.
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de Bono, et al. Central, Prospective Detection of Homologous Recombination Repair Gene Mutations (HRRm) in Tumour Tissue From >4000 Men With Metastatic Castration-Resistant Prostate Cancer (mCRPC) Screened for the PROfound Study. Presented at: ESMO Congress; September 27-October 1, 2019;
Barcelona, Spain . Abstract 847PD - Na R, et al. Germline Mutations in ATM and BRCA1/2 Distinguish Risk for Lethal and Indolent Prostate Cancer and are Associated with Early Age at Death. Eur Urol. 2017;71(5):740-747.
- Sung H, et al. Global Cancer Statistics 2020: GLOBOCAN Estimates of Incidence and Mortality Worldwide for 36 Cancers in 185 Countries. CA Cancer J Clin. 2021; 71(3):209-249.
- Cancer.Org. Key Statistics For Prostate Cancer. Available at https://www.cancer.org/cancer/prostate-cancer/about/key-statistics.html. Accessed March 2023.
- Ng K, et al. Metastatic Hormone-Sensitive Prostate Cancer (mHSPC): Advances and Treatment Strategies in the First-Line Setting. Oncol Ther. 2020;8:209–230.
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de Bono J, et al. Antitumour Activity and Safety of Enzalutamide in Patients with Metastatic Castration-Resistant Prostate Cancer Previously Treated with Abiraterone Acetate Plus Prednisone for ≥24 weeks in
Europe . Eur Urol. 2018;74(1):37-45 - Hussein M, et al. Prostate-Specific Antigen Progression Predicts Overall Survival in Patients with Metastatic Prostate Cancer: Data from Southwest Oncology Group Trials 9346 (Intergroup Study 0162) and 9916. J Clin Oncol. 2009;27(15):2450.
- de Wit, R, et al. Real-World Evidence of Patients with Metastatic Castration-Resistant Prostate Cancer Treated with Cabazitaxel: Comparison with the Randomized Clinical Study CARD. Prostate Cancer Prostatic Dis. 2022;2660.
- Ryan C, et al. Abiraterone Acetate Plus Prednisone Versus Placebo Plus Prednisone in Chemotherapy-Naive Men with Metastatic Castration-Resistant Prostate Cancer (COU-AA-302): Final Overall Survival Analysis of a Randomised, Double-Blind, Placebo-Controlled Phase 3 Study. Lancet Oncol. 2015 Feb;16(2):152-60.
- Miller K, et al. The Phase 3 COU-AA-302 Study of Abiraterone Acetate Plus Prednisone in Men with Chemotherapy-Naïve Metastatic Castration-Resistant Prostate Cancer: Stratified Analysis Based on Pain, Prostate-Specific Antigen, and Gleason Score. Eur Urol. 2018;74(1):17-23.
- Chowdhury S, et al. Real-World Outcomes in First-Line Treatment of Metastatic Castration-Resistant Prostate Cancer: The Prostate Cancer Registry. Target Oncol. 2020;15(3):301-315.
- Cancer.Net. Treatment of Metastatic Castration-Resistant Prostate Cancer. Available at https://www.cancer.net/cancer-types/prostate-cancer/types-treatment. Accessed March 2023.
- Kirby M, et al. Characterising the Castration-Resistant Prostate Cancer Population: Systematic Review. Int J of Clin Pract. 2021;65(11):1180-1192.
- UroToday. What is Changing in Advanced Prostate Cancer? Available at https://www.urotoday.com/journal/everyday-urology-oncology-insights/articles/122176-what-is-changing-in-advanced-prostate-cancer.html. Accessed March 2023.
- Liu J, et al. Second-Line Hormonal Therapy for the Management of Metastatic Castration-Resistant Prostate Cancer: A Real-World Data Study Using a Claims Database. Sci Rep. 2020;10(1):4240.
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