The FDA clearance aids AstraZeneca and Daiichi Sankyo’s plan to position ADCs like Enhertu ahead of chemotherapy in a variety of tumors.

Enhertu first secured approval in 2019 for patients with high levels of HER2, a protein that promotes cancer cell growth. In 2022, the drug became the first therapy approved for H

Just 11 days after AstraZeneca and Daiichi Sankyo gained FDA approval | The FDA has cleared AstraZeneca and Daiichi Sankyo's Enhertu as the first HER2-directed treatment for patients with HER2-low or HER2-ultralow metastatic breast cancer following disease progression after one or more endocrine therapies.

The antibody drug conjugate was approved for patients with unresectable or metastatic HER2-low or -ultralow breast cancer with disease progression after endocrine therapy.

FDA approves Enhertu for metastatic breast cancer with HER2-low or HER2-ultralow expression after showing significant efficacy in the DESTINY-Breast06 trial.

Enhertu’s label expansion comes on the heels of the FDA’s approval of the partners' Datroway for a related type of breast cancer.

The PATHWAY HER2 (4B5) test, the first and only FDA approved companion diagnostic for assessing HER2-low status since 2022, is now also approved to aid in the assessment of HER2-ultralow status for metastatic breast cancer patients.

AstraZeneca AZN and partner Daiichi Sankyo announced that the FDA has approved the supplemental biologics license application (sBLA) seeking approval for expanded use of Enhertu (trastuzumab deruxtecan) for HER2-low metastatic breast cancer in the United States.