Ingenol mebutate in low amounts for the treatment of actinic keratosis in Korean patients
Authors Joe HJ, Oh BH
Received 30 November 2016
Accepted for publication 20 January 2017
Published 30 March 2017 Volume 2017:10 Pages 93—98
Checked for plagiarism Yes
Review by Single-blind
Peer reviewers approved by Dr Colin Mak
Peer reviewer comments 2
Editor who approved publication: Dr Jeffrey Weinberg
Hyun Jae Joe, Byung Ho Oh
Department of Dermatology, Keimyung University, College of Medicine, Daegu, Republic of Korea
Background: Ingenol mebutate (IM), a novel agent for field therapy of actinic keratosis (AK), has a drawback of inducing local skin reactions (LSRs), which may cause discomfort in patients. To reduce the LSRs, we tried the application of IM in low amounts.
Objective: The purpose of this study was to review Korean patients with AK being treated with IM and evaluate the LSRs and therapeutic outcomes of low amounts of IM.
Methods: We retrospectively reviewed 47 patients with AK on the face. A total of 20 and 27 patients were treated by applying recommended amount of 18.8 mg/cm2 and the lower amount of 10 mg/cm2, respectively.
Results: The mean composite LSR score for the low amount group (LAG; 12.18±3.29) was significantly lower than that for the recommended amount group (RAG; 15.45±2.70) (P<0.01, independent sample t-test). The 2-month clearance rate calculated by the number of AKs before and after treatment in each patient was significantly higher for RAG (88.16%), compared with 75.56% for LAG (P<0.001).
Conclusion: Low amount of IM for the treatment of facial AK significantly reduced LSRs in Korean patients. Minimizing LSRs may allow for a secondary targeting treatment of IM for the residual lesions, depending on initial treatment outcomes.
Keywords: actinic keratosis, field therapy, ingenol mebutate
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