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Home Latest Pharma-News The OlympiA Phase III trial for AstraZeneca and MSD’s Lynparza crossed superiority...

The OlympiA Phase III trial for AstraZeneca and MSD’s Lynparza crossed superiority boundary

February 17, 2021: The OlympiA Phase III trial for AstraZeneca and MSD’s Lynparza will move to early primary analysis and reporting following a recommendation from the Independent Data Monitoring Committee (IDMC).

Based on the planned interim analysis, the IDMC concluded that the trial crossed the superiority boundary for its primary endpoint of invasive disease-free survival (iDFS) and demonstrated a sustainable, clinically relevant treatment effect for Lynparza versus placebo for patients with germline BRCA-mutated (gBRCAm) high-risk human epidermal growth factor receptor 2 (HER2)-negative early breast cancer, and recommend primary analysis now take place.

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The OlympiA Phase III trial is a partnership between Breast International Group (BIG), NRG Oncology, the US National Cancer Institute (NCI), Frontier Science & Technology Research Foundation (FSTRF), AstraZeneca and MSD.

The trial is sponsored by NRG Oncology in the US and by AstraZeneca outside the US.

An estimated 2.3 million women were diagnosed with breast cancer worldwide in 2020, and BRCA mutations are found in approximately 5% of breast cancer patients.

Around 55-65% of women with a BRCA1 mutation and approximately 45% with a BRCA2 mutation will develop breast cancer before the age of 70.

Andrew Tutt, Global Chair of the OlympiA Phase III trial and Professor, Institute of Cancer Research and Kings College London, said: “We are delighted that our global academic and industry partnership has been able to help investigate a possible personalised treatment for women with hereditary breast cancer.

The most common cause of hereditary breast cancer is an inherited mutation in the BRCA1 or BRCA2 genes which also may cause the disease to develop at a significantly earlier age than is usual.

The OlympiA trial has allowed us to go beyond using genetic testing to identify patients who are at risk of this disease and explore the potential of Lynparza to prevent disease recurrence for these patients.

We look forward to analysing and presenting the full results of the trial at a forthcoming medical meeting.”

José Baselga, Executive Vice President, Oncology R&D, said: “Breast cancer remains one of the most common cancers globally and despite advances in treatment, many patients with high-risk disease will unfortunately develop a recurrence. We look forward to reviewing the results.”

Roy Baynes, Senior Vice President and Head of Global Clinical Development, Chief Medical Officer, MSD Research Laboratories, said: “ Analysis of the OlympiA trial, based upon the IDMC recommendation, could represent a potential step forward for patients with early-stage, high-risk primary breast cancer with a germline BRCA mutation.”

In its communication, the IDMC did not raise any new safety concerns. The trial will continue to assess the key secondary endpoints of overall survival and distant disease-free survival.

Early breast cancer
Breast cancer is the most common cancer among women worldwide and an estimated 90% of all breast cancer is diagnosed at an early stage.

Breast cancer is one of the most biologically diverse tumour types with various factors fuelling its development and progression.

The discovery of biomarkers in the development of breast cancer has greatly impacted scientific understanding of the disease.

BRCA1 and BRCA2
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 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 and confer sensitivity to PARP inhibitors including Lynparza.

OlympiA
OlympiA is a Phase III, double-blind, parallel group, placebo-controlled, multicentre trial testing the efficacy and safety of Lynparza tablets versus placebo as adjuvant treatment in patients with gBRCAm high-risk HER2-negative early breast cancer, who have completed definitive local treatment and neoadjuvant or adjuvant chemotherapy.

The primary endpoint of the trial is iDFS defined as time from randomisation to date of first treatment failure that is loco-regional or distant recurrence or new cancer or death from any cause.

NRG Oncology
NRG Oncology is a network group funded by the NCI, a part of the National Institutes of Health. All of the NCI funded network groups participated in the trial.

The NCI and AstraZeneca are collaborating under a Cooperative Research and Development Agreement.

NRG Oncology brings together the National Surgical Adjuvant Breast and Bowel Project, the Radiation Therapy Oncology Group, and the Gynaecologic Oncology Group, with the mission to improve the lives of cancer patients by conducting practice-changing multi-institutional clinical and translational research.

BIG
The Breast International Group (BIG) is an international not-for-profit organisation for academic breast cancer research groups from around the world, based in Brussels, Belgium.

Founded by leading European opinions leaders in 1999, the organisation aims to address fragmentation in European breast cancer research and now represents a network of over 55 like-minded research groups affiliated with specialised hospitals, research centres and leading experts across approximately 70 countries on six continents.

BIG’s research is supported in part by its philanthropy unit, known as BIG against breast cancer, which is used to interact with the general public and donors, and to raise funds for BIG’s purely academic breast cancer trials and research programmes.

FSTRF
Frontier Science & Technology Research Foundation (FSTRF) is a non-profit, research organisation which supports research networks, pharmaceutical companies and investigators to conduct scientifically meaningful high-quality clinical trials. The OlympiA trial involved research staff in the US and in the Affiliate office in Scotland.

FSTRF works with scientists and technicians in more than 800 laboratories, universities and medical centres around the world to provide a comprehensive range of research services throughout the clinical trial process including design, analysis and reporting.

Through its work, FSTRF aims to advance the application of statistical science and practice and data management techniques in science, healthcare and education.

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 (HRR), 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, EU and Japan as a 1st-line maintenance treatment with bevacizumab for patients with homologous recombination deficient (HRD)-positive advanced ovarian cancer (BRCAm and/or genomic instability). 

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, the EU, Japan and several other countries for the treatment of gBRCAm metastatic pancreatic cancer.

Lynparza is approved in the US for HRR gene-mutated metastatic castration-resistant prostate cancer (BRCAm and other HRR gene mutations) and in the EU and Japan for BRCAm metastatic castration-resistant prostate cancer.

Regulatory reviews are underway in several countries 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 40,000 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.”

https://www.astrazeneca.com/content/astraz/media-centre/press-releases/2021/olympia-trial-of-lynparza-idmc-recommend-early-analysis.html

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