— Marker showed 94% accuracy in patients with indeterminate baseline ACTH levels

by Gregory Laub, Senior Director, Video, MedPage Today

July 7, 2026

• 3 min read

At ENDO 2026, the annual meeting of the Endocrine Society, researchers reported that measuring adrenocorticotropic hormone (ACTH) after a 1-mg overnight dexamethasone suppression test (DST) may improve the diagnosis of hypercortisolism in patients whose baseline ACTH levels fall into a common diagnostic gray zone.