Curb your enthusiasm for eosinophil-tailored asthma therapy

Tailoring of asthma therapy based on FeNO (fractional exhaled nitric oxide) or sputum eosinophils has been shown to be effective in decreasing asthma exacerbations in adults. However an Australian-led systematic review and meta-analysis of the evidence for the use of the eosinophilic markers found they made no difference to daily symptom scores. While some have ...