A Prospective, Randomized, Placebo-Controlled Study to Identify Biomarkers Associated with Active Treatment in Psoriatic Arthritis: Effects of Adalimumab Treatment on Lesional and Nonlesional Skin

Marjan de Groot, Daisy I. Picavet, Arno W. R. van Kuijk, Paul P. Tak, Jan D. Bos, Menno A. de Rie, Marcel B. M. Teunissen

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12 Citations (Scopus)

Abstract

Background: There is a need for biomarkers to screen the effectiveness of (novel) therapeutic agents for psoriasis at an early stage. Objective: We aimed to determine which of the changes in psoriatic skin correlates best with clinical improvement 4 weeks after effective adalimumab therapy. Methods: Twenty-two psoriatic arthritis patients were randomized to receive adalimumab or placebo. T cell numbers and markers of innate immunity were estimated in lesional and nonlesional skin biopsies at baseline and after 4 weeks of treatment. Results: CD161+ and elastase+ dermal cells in lesional skin were significantly reduced upon 4 weeks of successful adalimumab treatment compared with placebo. Conclusion: Early improvement of psoriasis lesions during adalimumab therapy is associated with a marked reduction of infiltrated dermal CD161+ T cells and elastase+ neutrophils, suggesting that these parameters could be used as biomarkers to monitor early changes after active treatment in small proof-of-concept studies of short duration. Copyright (c) 2012 S. Karger AG, Basel
Original languageEnglish
Pages (from-to)298-303
JournalDermatology (Basel, Switzerland)
Volume225
Issue number4
DOIs
Publication statusPublished - 2012

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