Enhertu approved in China as the first HER2-directed therapy for patients with HER2-low metastatic breast cancer

Enhertu is a specifically engineered HER2-directed antibody drug conjugate (ADC) being jointly developed and commercialised by AstraZeneca and Daiichi Sankyo.

The approval by China’s National Medical Products Administration (NMPA) is based on the results of the DESTINY-Breast04 Phase III trial, first presented at the American Society of Clinical Oncology 2022 Annual Meeting and published in The New England Journal of Medicine.(previously cited). It follows the approval granted by China’s NMPA for Enhertu in patients with previously treated unresectable or metastatic HER2-positive breast cancer in February 2023.

In China, breast cancer is the most common cancer in women, with more than 415,000 patients diagnosed in 2020. There were nearly 120,000 breast cancer deaths in China in 2020, representing around 18% of global breast cancer deaths. Approximately half of all breast cancers are considered HER2-low.

Binghe Xu, MD, Director of the National Clinical Research Center for New Anticancer Drugs, Tenured Professor and Former Director, Department of Medical Oncology, Cancer Hospital Chinese Academy of Medical Sciences and Peking Union Medical College, said: “Historically, breast cancer tumours with low levels of HER2 expression have been classified as HER2-negative and have not been eligible for treatment with HER2-directed therapies. With this approval in China, based on the results of the DESTINY-Breast04 trial, clinicians will now be able to identify and potentially treat a distinct patient population based on HER2-low status.”