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Truqap plus Faslodex approved in US for advanced HR-positive breast cancer: AstraZeneca
Cambridge: AstraZeneca’s Truqap (capivasertib) in combination with Faslodex (fulvestrant) has been approved in the US for the treatment of adult patients with hormone receptor (HR)-positive, HER2-negative locally advanced or metastatic breast cancer with one or more biomarker alterations (PIK3CA, AKT1 or PTEN). Eligible patients will have progressed on at least one endocrine-based regimen in the metastatic setting or experienced recurrence on or within 12 months of completing adjuvant therapy.
The approval by the Food and Drug Administration (FDA) was based on the results from the CAPItello-291 Phase III trial published earlier this year in The New England Journal of Medicine. In the trial, Truqap in combination with Faslodex reduced the risk of disease progression or death by 50% versus Faslodex alone in patients with tumours harbouring PI3K/AKT pathway biomarker alterations (based on hazard ratio of 0.50, 95% confidence interval 0.38-0.65; p=<0.001; median progression-free survival (PFS) 7.3 versus 3.1 months).
Breast cancer is the most common cancer and one of the leading causes of cancer-related death worldwide. HR-positive breast cancer (expressing estrogen or progesterone receptors, or both), is the most common subtype, with more than 65% of tumours considered HR-positive and HER2-low or HER2-negative. Collectively, mutations in PIK3CA, AKT1 and alterations in PTEN occur frequently, affecting up to 50% of patients with advanced HR-positive breast cancer. Endocrine therapies are widely used in this setting, but many patients develop resistance to 1st-line cyclin-dependent kinase (CDK) 4/6 inhibitors and estrogen receptor-targeting therapies, underscoring the need for additional endocrine therapy-based options.
Komal Jhaveri, MD, Medical Oncologist, Memorial Sloan Kettering Cancer Center (MSK), US, said, “Patients with advanced HR-positive breast cancer typically experience tumour progression or resistance with widely used first-line endocrine therapies and there is an urgent need to extend the effectiveness of these approaches. The combination of capivasertib and fulvestrant, a first-of-its-kind combination, provides a much-needed new treatment option for up to half of patients in this setting with these specific biomarkers, offering the potential to delay disease progression and provide more time with their disease under control.”
Dave Fredrickson, Executive Vice President, Oncology Business Unit, AstraZeneca, said, “The rapid US approval of Truqap reinforces the important role of the PI3K/AKT pathway in HR-positive breast cancer and the critical need to test patients at the time of diagnosis, as up to fifty per cent have tumours with these alterations. As a first-in-class medicine, this approval provides a critical new option for patients in the US with this specific type of disease and we look forward to bringing Truqap to the many breast cancer patients who can benefit across the globe.”
In the CAPItello-291 trial, the safety profile of Truqap plus Faslodex was similar to that observed in previous trials evaluating this combination.
Concurrently with this approval, the FDA also approved a companion diagnostic test to detect relevant alterations (PIK3CA, AKT1 and PTEN).
The US regulatory submission was granted Priority Review and reviewed under Project Orbis, which provides a framework for concurrent submission and review of oncology medicines among participating international partners. As part of Project Orbis, Truqap plus Faslodex is also under review by regulatory authorities in Australia, Brazil, Canada, Israel, Singapore, Switzerland and the UK.
Regulatory applications for Truqap in combination with Faslodex are also currently under review in China, the European Union, Japan and several other countries.
Read also: AstraZeneca breast cancer drug combination gets USFDA okay
Ruchika Sharma joined Medical Dialogue as an Correspondent for the Business Section in 2019. She covers all the updates in the Pharmaceutical field, Policy, Insurance, Business Healthcare, Medical News, Health News, Pharma News, Healthcare and Investment. She has completed her B.Com from Delhi University and then pursued postgraduation in M.Com. She can be contacted at editorial@medicaldialogues.in Contact no. 011-43720751