On April 5, the FDA granted accelerated approval to AstraZeneca and Daiichi Sankyo’s ENHERTU (trastuzumab deruxtecan) for adult patients with unresectable or metastatic HER2-positive (IHC3+) solid tumors who have received prior systemic treatment and have no satisfactory alternative treatment options. ENHERTU, which is now FDA-approved for five indications, is a specifically engineered HER2-directed antibody drug…