BURLINGTON, N.C., Aug. 4, 2026 /PRNewswire/ — Labcorp (NYSE: LH), a global leader of innovative and comprehensive laboratory services, announced the nationwide availability of Roche’s VENTANA® PTEN (SP218) RxDx Assay, the first immunohistochemistry (IHC) companion diagnostic test approved by the U.S. Food and Drug Administration (FDA) to determine PTEN protein loss, also known as PTEN deficiency, in tumors of patients with prostate adenocarcinoma. The assay helps identify patients who may be eligible for treatment with AstraZeneca’s TRUQAP® (capivasertib) in combination with abiraterone acetate and prednisone.