“…In assessing long‐term disease control, the study recorded objective and subjective outcomes at 4‐weekly intervals, proportion of topical and systemic rescue medication‐free days and incidence rate of flares (defined as worsening of AD requiring escalation or intensification of treatment). There are inherent challenges in studying a chronic, intermittent disease such as AD and, consequently, defining long‐term disease control is difficult, with no widely accepted or validated measure – a challenge that is currently being addressed by the HOME group.…”