Publication date: Available online 28 November 2015
Source:Actas Dermo-Sifiliográficas
Author(s): G. Sanclemente, G.A. Mancilla, G. Hernandez
BackgroundDaylight PDT (dPDT) is easy to use and does not require light equipment. Such therapy has been exhaustively proved to be successful in the treatment of actinic keratosis, but its use in skin photodamage remains unclear.ObjectiveTo evaluate dPDT's efficacy in skin facial photodamage.Patients and methodsThis was a parallel-group double-blind, randomized placebo-controlled trial. Sixty participants with symmetric facial photodamage were allocated to topical methyl aminolevulinate (MAL) and daylight vs. matching placebo and daylight. Primary outcome was global photodamage improvement/failure 1 month after the third session. Secondary outcomes included: pain evaluation; specific photodamage severity scores; sun irradiance quantification and Skindex-29 scores. Adverse events were also investigated.ResultsPrimary analysis included all randomized patients. All patients sun-exposed for 120min in 3 sessions. The risk of failure was lower in the MAL-dPDT group than in the placebo plus daylight group (RR: 0.18; 95% CI: 0.08–0.41). Mean solar irradiance (W/m2) during the first, second and third sessions was 480.82, 430.07 and 435.84, respectively. Items 5 and 14 of Skindex-29 in the MAL-dPDT group showed statistical significant differences. Two patients in the MAL-dPDT group had serious and non-serious events not directly related to the product.ConclusiondPDT with MAL was un-painful, effective and safe for the treatment of facial photodamage. Herpes simplex prophylaxis should be considered before sessions.
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