Recently, the U.S. Food and Drug Administration approved Phesgo — a combination of pertuzumab, trastuzumab and hyaluronidase–zzxf — for injection under the skin to treat adult patients with HER2-positive breast cancer that has spread to other parts of the body, and for treatment of adult patients with early HER2-positive breast cancer. Patients should be selected based on an FDA-approved companion diagnostic test.
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