The targeted therapeutic olaparib aids in survival of women with high-risk early-stage breast cancer who have inherited defects in theirBRCA1orBRCA2genes, according to new findings from a major clinical trial show.
New analysis from thephase III OlympiA trial shows that olaparib added to standard treatment reduces the risk of women dying by 32%, resulting in more women remaining cancer free and becoming breast cancer survivors.
Professor Andrew Tutt at the ICR and Kings College London was the chair of the Steering Committee for the study, and was also involved in early laboratory research on PARP inhibitors such as olaparib and their subsequent clinical development. The Breast International Group (BIG) coordinated the international OlympiA study, involving 671 study locations worldwide across multiple partners.
Researchers at the OlympiA trial tested 1,836 women with HER-2 negative breast cancer, who also had a mutation in theirBRCA1orBRCA2genes and had undergone standard treatment, such as surgery, chemotherapy, hormonal therapies, and radiotherapy,where appropriate. Patients were randomly allocated to either 300 mg twice daily of olaparib or a placebo for one year and were then followed up.
Following a planned review by an independent monitoring committee, the trial will follow participants for a total of ten years, but reported its first results. That way, the risk of breast cancer being reversed by 42 percent
The ICR partnered with BIG to coordinate the clinical trials sites across the United Kingdom.
Targeting specific biology of BRCA1 and BRCA2
Olaparib focuses on the BRCA genes'' specific path, killing cancer cells, while leaving healthy cells alone. The ICR worked with several partners to discover how to use olaparib and other PARP inhibitor drugs for patients with mutations in theirBRCA1orBRCA2genes, or faults in other DNA repair genes.
This research paved the way for throng of research with international partners that have resulted in the development of olaparib as a treatment for some patients with advanced ovarian, breast, prostate, and pancreatic cancer.
Individualised and targeted treatment
Andrew Tutt, the chair of the OlympiA steering committee, and Professor of Oncology at The Institute of Cancer Research, London, and Kings College London, have said:
Many women with inherited breast cancer are aware of early stages of the disease, and many people will do well, but for some, cancer risk remains unacceptably high even after treatment.
After using olaparib to directly target the weakness in their cancer and improve their survival, I hope to seeBRCA1andBRCA2testing being used for more women diagnosed with early-stage breast cancer, so that we can discern who can benefit from this personalized therapy therapy. Olaparib is a much needed new individualised and targeted treatment option to keep more women with inherited breast cancer free of disease and well after their initial treatment.
A major step forward
Professor Kristian Helin, the head of the Institute of Cancer Research in London, said that: "It is a work ethic.
This is a significant step forward in resolving early-stage inherited breast cancer. Olaparib increases patients'' chances of remaining cancer free and possibly being cured after initial therapy. We hope that olaparib will be licensed in Europe and approved in the United Kingdom for NHS patients promptly.
Following landmark research at the ICR, Olaparib was the first cancer medication in the world to direct target inherited genetic hazards. Regardless, the story of olaparib shows how a fundamental scientific discovery, which identified one of cancer''s shortcomings, can lead to game-changing new therapies. It is also a great UK success story, and I am proud of the role played by the ICRs scientists in its development.
The OlympiA project is being coordinated worldwide by BIG in collaboration with NRG Oncology, the US National Cancer Institute (NCI), the Frontier Science & Technology Research Foundation (implementing research staff in the United States and in its affiliate office in Scotland), AstraZeneca, and AstraZeneca. The project is sponsored by NRG Oncology in the United States and by AstraZeneca outside the United States.