03:42 AM EDT, 05/18/2026 (MT Newswires) -- AstraZeneca (AZN) said Friday the US Food and Drug Administration approved its Enhertu medication, developed with Daiichi Sankyo, to treat HER2-positive early breast cancer both before and following surgery.

The pre-surgery treatment demonstrated a 67.3% complete response rate compared to 56.3% for standard care, while the post-surgery application reduced the risk of disease recurrence or death by 53% in phase 3 trials, the company said.

No new safety issues were identified during the studies, AstraZeneca said.

The US authorizations trigger $155 million in milestone payments from AstraZeneca to Daiichi Sankyo, it added.

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