A flow cytometric assay for HLA‐DR expression on monocytes validated as a biomarker for enrollment in sepsis clinical trials

Abstract

Decreased expression of HLA‐DR on monocytes (mHLA‐DR) is a reliable indicator of immunosuppression in patients with sepsis and is correlated with increased risk of secondary infection and mortality. A flow cytometry‐based laboratory developed test for the measurement of mHLA‐DR in whole blood was validated for clinical trial enrollment, which is considered medical decision‐making, for patients with severe sepsis or septic shock.