
The FDA has approved Guardant 360 CDx as a companion diagnostic for elacestrant in patients with ESR1-mutant, estrogen receptor–positive, HER2-negative advanced or metastatic breast cancer.

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The FDA has approved Guardant 360 CDx as a companion diagnostic for elacestrant in patients with ESR1-mutant, estrogen receptor–positive, HER2-negative advanced or metastatic breast cancer.

Patients with estrogen receptor–positive, HER2-negative metastatic breast cancer can now receive elacestrant as treatment following the FDA’s approval of the agent.