Lack of Effect after Local Treatment with a New Ciclosporin Formulation in Recalcitrant Erosive Oral Lichen planus

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Abstract
We treated 7 patients with recalcitrant enoral lichen planus (Lp) with a new hydrophilic ciclosporin (CS) formulation during 8 weeks. The preparation with proven in vivo percutaneous absorption was designed for topical use and contained 100 mg CS/g formulation. The patients applied a cumulative daily dose of about 126 mg CS. We did not see the previously reported clinically impressive response with our CS formulation. No CS was detected in the blood of our patients. We conclude that percutaneous absorption of CS is not the key event to the clinical responses. Clinical benefit after CS in enoral Lp seems rather to the clinical responses. Clinical benefit after CS in enoral Lp seems rather to be related to a systemic effect of the drug.