Evaluation of daily patch application duration for epicutaneous immunotherapy for peanut allergy.

Allergy and Asthma Proceedings
David M FleischerHugh A Sampson

Abstract

Background: Epicutaneous immunotherapy is a potential novel immunotherapy that utilizes unique cutaneous immunologic properties. In a phase III, randomized, double-blind, placebo controlled clinical trial, an epicutaneous patch (DBV712) with 250 µg of peanut protein applied once daily for 12-months was statistically superior to placebo in desensitizing children with peanut allergy (ages 4-11 years) (N = 356). Objective: To assess the relationship between the hours of daily application time and the efficacy of DBV712 250 µg. Methods: DBV712 250 µg was applied to 30 nonallergic volunteers for various durations from 2 to 24 hours and then assayed for residual peanut protein. Patch application data from the phase III clinical trial were analyzed post hoc according to prespecified responder rates and changes in the eliciting dose (ED), as measured by the geometric mean (GM) ED ratio (12 months/baseline). Results: Following application, there was a marked decrease in peanut protein on the patches from 2 to 12 hours. After 12 hours, the median peanut protein recovered was below quantification limits. The median daily patch application duration in subjects from the phase III clinical trial was 21.1 hours (DBV712 250 µg) and 22.4 hours ...Continue Reading

Citations

Aug 8, 2020·Allergy·Wayne Robert Thomas
Aug 18, 2021·Der Hautarzt; Zeitschrift für Dermatologie, Venerologie, und verwandte Gebiete·Regina Treudler, Jan-Christoph Simon

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