Abstract
BackgroundAs novel systemic therapeutics for patients with atopic dermatitis (AD) are developed, ethical and methodological concerns regarding placebo‐controlled‐trials (PCT) have surfaced.ObjectiveTo guide the design and implementation of PCT in AD, focusing on trials with systemic medications.MethodsA subgroup of the International Eczema Council (IEC) developed a consensus e‐survey, which was disseminated to IEC members.ResultsThe response rate was 43/82 (52%). Consensus was reached on 24/27 statements and on 3/11 options from multiple‐selection statements, including: performing monotherapy studies in proof‐of‐concept phases; avoiding concomitant topical corticosteroids or calcineurin inhibitors until a predefined timepoint as rescue (borderline consensus); selection of sites and assessors with recognized expertise in AD clinical trials; clear definition and identification of baseline disease severity; minimizing time and proportion of patients on placebo; using daily emollients with several options provided; instigating open‐label extension studies for enrolment after a predefined timepoint; and including outcomes which set a higher bar for disease clearance.ConclusionConducting PCT in AD requires balancing several, sometimes opposing principles, including ethics, methodology, regulatory requirements and real‐world needs. This paper can provide a framework for conducting PCT with systemic medications for patients with AD.
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