On June 1, 2020 AstraZeneca and MSD Inc., Kenilworth, N.J., US (MSD: known as Merck & Co., Inc. inside the US and Canada) reported that Lynparza (olaparib) has been recommended for marketing authorisation in the European Union (EU) for the 1st-line maintenance treatment of patients with germline BRCA-mutated (gBRCAm) metastatic pancreatic cancer (Press release, AstraZeneca, JUN 1, 2020, View Source [SID1234558781]).

The Committee for Medicinal Products for Human Use (CHMP) of the European Medicines Agency (EMA) based its positive opinion on results from the Phase III POLO trial, which were published in The New England Journal of Medicine.

The trial demonstrated that Lynparza nearly doubled the time patients with gBRCAm metastatic pancreatic cancer lived without disease progression or death to a median of 7.4 months versus 3.8 months on placebo. The safety and tolerability profile of Lynparza in the POLO trial was consistent with previous trials.

José Baselga, Executive Vice President, Oncology R&D, said: "Patients with advanced pancreatic cancer have seen limited treatment advances over the last few decades. We are now one step closer to bringing the first targeted medicine to certain biomarker-selected patients with advanced pancreatic cancer in the EU."

Roy Baynes, Senior Vice President and Head of Global Clinical Development, Chief Medical Officer, MSD Research Laboratories, said: "A pancreatic cancer diagnosis is devastating, and we are committed to research that aims to change the prognosis for patients. The POLO Phase III trial demonstrated that treatment with Lynparza extended time without disease progression in certain patients with advanced pancreatic cancer – we are hopeful that we will be able to bring this treatment to patients in the EU soon."

The CHMP recommendation is for maintenance treatment with Lynparza for adult patients with germline BRCA1/2 mutations who have metastatic adenocarcinoma of the pancreas and have not progressed after a minimum of 16 weeks of platinum treatment within a 1st-line chemotherapy regimen.

Lynparza is approved in the US and several other countries as a 1st-line maintenance treatment for patients with gBRCAm metastatic pancreatic cancer based on the Phase III POLO trial, with ongoing regulatory reviews in the EU and other jurisdictions.

Lynparza was recently approved in the US for patients with homologous recombination repair (HRR) gene-mutated metastatic castration-resistant prostate cancer. It was also approved in the US as a 1st-line maintenance treatment with bevacizumab for patients with homologous recombination deficiency (HRD)-positive advanced ovarian cancer.

Pancreatic cancer
Pancreatic cancer is a deadly cancer with a high unmet medical need. The disease has the lowest survival rate of the most common cancers.1 Globally, pancreatic cancer is the 11th-most commonly occurring cancer and the seventh leading cause of cancer death.2,3 There were approximately 460,000 new cases worldwide in 2018.3 As there are often no symptoms, or symptoms may be non-specific in the early stages, it is most commonly diagnosed at an incurable stage.4,5

Around 80% of pancreatic cancer patients are diagnosed when the disease has metastasised, at which point average survival is less than a year.6 Despite advances in treatment, few improvements have been made in diagnosis and treatment in the past few decades.7 Current treatment is surgery (for which approximately only 10-20% of patients are eligible), chemotherapy and radiotherapy, highlighting a critical unmet medical need for more effective treatment options.8

POLO
POLO is a Phase III randomised, double-blinded, placebo-controlled, multi-centre trial of Lynparza tablets (300mg twice daily) as maintenance monotherapy vs. placebo. The trial randomised 154 patients with gBRCAm metastatic pancreatic cancer whose disease had not progressed on 1st-line platinum-based chemotherapy. Patients were randomised (3:2) to receive Lynparza or placebo until disease progression. The primary endpoint was progression-free survival (PFS) and key secondary endpoints included overall survival, time to second disease progression, overall response rate and health-related quality of life.

BRCA mutations
BRCA1 and BRCA2 (breast cancer susceptibility genes 1/2) are human genes that produce proteins responsible for repairing damaged DNA and play an important role in maintaining the genetic stability of cells. When either of these genes is mutated, or altered, such that its protein product either is not made or does not function correctly, DNA damage may not be repaired properly, and cells become unstable. As a result, cells are more likely to develop additional genetic alterations that can lead to cancer.

Lynparza
Lynparza (olaparib) is a first-in-class PARP inhibitor and the first targeted treatment to block DNA damage response (DDR) in cells/tumours harbouring a deficiency in homologous recombination repair, such as mutations in BRCA1 and/or BRCA2. 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 being tested in a range of PARP-dependent tumour types with defects and dependencies in the DDR pathway.

Lynparza is currently approved in a number of countries, including those in the EU, for the maintenance treatment of platinum-sensitive relapsed ovarian cancer. It is approved in the US, the EU, Japan, China, and several other countries as 1st-line maintenance treatment of BRCA-mutated advanced ovarian cancer following response to platinum-based chemotherapy. It is also approved in the US as a 1st-line maintenance treatment with bevacizumab for patients with homologous recombination deficiency (HRD)-positive advanced ovarian cancer. Lynparza is approved in the US, Japan, and a number of other countries for germline BRCA-mutated, HER2-negative, metastatic breast cancer, previously treated with chemotherapy; in the EU, this includes locally advanced breast cancer. It is also approved in the US and several other countries for the treatment of germline BRCA-mutated metastatic pancreatic cancer. Lynparza is approved in the US for homologous recombination repair (HRR) gene-mutated metastatic castration-resistant prostate cancer. Regulatory reviews are underway in several jurisdictions for ovarian, breast, pancreatic and prostate cancers.

Lynparza, which is being jointly developed and commercialised by AstraZeneca and MSD, has been used to treat over 30,000 patients worldwide. Lynparza has the broadest and most advanced clinical trial development programme of any PARP inhibitor, and AstraZeneca and MSD are working together to understand how it may affect multiple PARP-dependent tumours as a monotherapy and in combination across multiple cancer types. Lynparza is the foundation of AstraZeneca’s industry-leading portfolio of potential new medicines targeting DDR mechanisms in cancer cells.

The AstraZeneca and MSD strategic oncology collaboration
In July 2017, AstraZeneca and Merck & Co., Inc., Kenilworth, NJ, US, known as MSD outside the US and Canada, announced a global strategic oncology collaboration to co-develop and co-commercialise Lynparza, the world’s first PARP inhibitor, and Koselugo (selumetinib), a MEK inhibitor, for multiple cancer types. Working together, the companies will develop Lynparza and Koselugo in combination with other potential new medicines and as monotherapies. Independently, the companies will develop Lynparza and Koselugo in combination with their respective PD-L1 and PD-1 medicines.

AstraZeneca in oncology
AstraZeneca has a deep-rooted heritage in oncology and offers a quickly growing portfolio of new medicines that has the potential to transform patients’ lives and the Company’s future. With six new medicines launched between 2014 and 2020, and a broad pipeline of small molecules and biologics in development, the Company is committed to advance oncology as a key growth driver for AstraZeneca focused on lung, ovarian, breast and blood cancers. In addition to AstraZeneca’s main capabilities, the Company is actively pursuing innovative partnerships and investment that accelerate the delivery of our strategy, as illustrated by the investment in Acerta Pharma in haematology.

By harnessing the power of four scientific platforms – Immuno-Oncology, Tumour Drivers and Resistance, DNA Damage Response and Antibody Drug Conjugates – and by championing the development of personalised combinations, AstraZeneca has the vision to redefine cancer treatment and, one day, eliminate cancer as a cause of death.

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