The EXAcerbations of Chronic pulmonary disease Tool (EXACT) is a 14-item patient-reported outcome (PRO) daily diary used to quantify and measure exacerbations of chronic obstructive pulmonary disease (COPD).

This instrument provides a single, standardized approach for assessing the symptomatic manifestations of COPD exacerbations, with a development and validation history consistent with guidelines proposed by the FDA, EMA, and well-known measurement principles.

Content covered by the EXACT is shown here