BACKGROUND:Photodynamic therapy (PDT) with topical 5-aminolevulinic acid (ALA) is used for effective treatment of facial acne vulgaris. OBJECTIVES: To determine which of two different incubation times (30 minutes and 3 hours) is more effective in PDT with intense pulsed light (IPL) for acne vulgaris. METHODS & MATERIALS: Twenty Korean subjects with moderate to severe acne were enrolled for a randomized, half-facial treatment study. Three sessions with short incubation with ALA plus IPL (30 minutes, n=9) or long incubation with ALA plus IPL (3 hours, n=11) on one side of the face and IPL alone on the other side were performed at 1-month intervals. RESULTS: All subjects showed improvement in inflammatory acne lesions after three sessions of ALA-PDT or IPL alone (p<.001 in all groups). The degree of improvement in inflammatory acne lesions was greater in the long incubation time group than the short incubation time group or the IPL-alone group, although the mean reduction of inflammatory acne lesions was statistically different only between the long incubation group and the IPL-only group (p=.01). There were no statistical differences between the short incubation group and IPL-alone group. All three groups had decreased sebum secretion after three sessions (p<.001 in all groups), but the differences between groups were not statistically significant. Only transient erythema and mild edema were reported for all treatment groups. CONCLUSION: PDT with a long ALA incubation time might be more adequate for a pronounced outcome with inflammatory acne.
RCT Entities:
BACKGROUND: Photodynamic therapy (PDT) with topical 5-aminolevulinic acid (ALA) is used for effective treatment of facial acne vulgaris. OBJECTIVES: To determine which of two different incubation times (30 minutes and 3 hours) is more effective in PDT with intense pulsed light (IPL) for acne vulgaris. METHODS & MATERIALS: Twenty Korean subjects with moderate to severe acne were enrolled for a randomized, half-facial treatment study. Three sessions with short incubation with ALA plus IPL (30 minutes, n=9) or long incubation with ALA plus IPL (3 hours, n=11) on one side of the face and IPL alone on the other side were performed at 1-month intervals. RESULTS: All subjects showed improvement in inflammatory acne lesions after three sessions of ALA-PDT or IPL alone (p<.001 in all groups). The degree of improvement in inflammatory acne lesions was greater in the long incubation time group than the short incubation time group or the IPL-alone group, although the mean reduction of inflammatory acne lesions was statistically different only between the long incubation group and the IPL-only group (p=.01). There were no statistical differences between the short incubation group and IPL-alone group. All three groups had decreased sebum secretion after three sessions (p<.001 in all groups), but the differences between groups were not statistically significant. Only transient erythema and mild edema were reported for all treatment groups. CONCLUSION: PDT with a long ALA incubation time might be more adequate for a pronounced outcome with inflammatory acne.
Authors: Michelle Barreto Requena; José Dirceu Vollet Filho; Andrigo Barboza de Nardi; Andre Escobar; Rozana da Rocha Adams; Vanderlei Salvador Bagnato; Priscila Fernanda Campos de Menezes Journal: Lasers Med Sci Date: 2019-03-22 Impact factor: 3.161
Authors: Jelena Barbaric; Rachel Abbott; Pawel Posadzki; Mate Car; Laura H Gunn; Alison M Layton; Azeem Majeed; Josip Car Journal: Cochrane Database Syst Rev Date: 2016-09-27