The usefulness of blood eosinophil count as a biomarker may still need clarification following trials using GlaxoSmithKline PLC's Nucala (mepolizumab) in COPD, despite the US FDA's hopes to the contrary.
Members of the Pulmonary-Allergy Drugs Advisory Committee seemed befuddled by many of the questions FDA raised, including what eosinophil count...





