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A Journal on Dermatology and Sexually Transmitted Diseases

Official Journal of the Italian Society of Dermatology and Sexually Transmitted Diseases
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Giornale Italiano di Dermatologia e Venereologia 2015 Oct 06

language: English

Clinical experience of imiquimod 3.75% for actinic keratosis: results from a case series

Tambone S. 1, Fargnoli M. C. 1, Capizzi R. 2, Peris K. 2

1 Department of Dermatology, University of L’Aquila, Italy;
2 Institute of Dermatology, Catholic University of Rome, Italy


AIM: In clinical studies, imiquimod 3.75% was shown to detect and treat actinic keratosis (AK) lesions across an entire sun-exposed field such as the full face or balding scalp. The aim of this study was to evaluate imiquimod 3.75% in a real-life clinical setting.
METHODS: Ten AK patients applied imiquimod 3.75% to the full face or scalp once- daily in two 2-week treatment cycles separated by a two-week treatment-free interval and were followed-up eight weeks later. Seven patients rated imiquimod 3.75% versus prior treatments (cryotherapy, photodynamic therapy, diclofenac sodium 3%, imiquimod 5%, ingenol mebutate).
RESULTS: The median clinical lesion count at baseline was 12.5. This increased to a median Lmax (maximum lesion count during treatment) of 22.5 as imiquimod 3.75% unmasked previously invisible subclinical lesions. At final follow-up, the median lesion count was zero. Local skin reactions such as erythema, scabbing and erosion occurred during each treatment cycle and were easy to manage. All patients considered imiquimod 3.75% easier to apply than prior treatments and five reported fewer or similar side effects.
CONCLUSION: In this cohort, imiquimod 3.75% effectively cleared clinical and subclinical lesions across the entire affected field and was well tolerated.

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