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Oral gliadin‐protected superoxide dismutase in addition to phototherapy for treating non‐segmental vitiligo: A 24‐week prospective randomized placebo‐controlled study
Author(s) -
Fontas E.,
Montaudié H.,
Passeron T.
Publication year - 2021
Publication title -
journal of the european academy of dermatology and venereology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.655
H-Index - 107
eISSN - 1468-3083
pISSN - 0926-9959
DOI - 10.1111/jdv.17331
Subject(s) - medicine , vitiligo , placebo , superoxide dismutase , clinical endpoint , gastroenterology , randomized controlled trial , prospective cohort study , dermatology , pathology , oxidative stress , alternative medicine
Background Despite a solid rationale, the usefulness of antioxidants in treating vitiligo has not been clearly demonstrated. Combining superoxide dismutase (SOD) with a wheat gliadin biopolymer protects it during the passage through the gastrointestinal tract. Objective To evaluate the efficacy of gliadin‐protected SOD (GP‐SOD), associated with narrowband ultraviolet B(NB‐UVB), for treating vitiligo. Methods We conducted a 24‐week monocentric interventional prospective randomized placebo‐controlled trial in the tertiary center for vitiligo care in the department of Dermatology of Nice University hospital, Nice, France. Subjects with non‐segmental vitiligo affecting more than 5% of the total body surface were included. The subjects received gliadin‐protected SOD (GP‐SOD; 1 g/day for 12 weeks followed by 0.5 g/day for 12 weeks) or placebo in combination with twice‐weekly sessions of NB‐UVB. The primary endpoint was the total repigmentation rate at 24 weeks, compared with baseline, as assessed by investigator‐assessed Vitiligo Extent Score (VES) on standardized pictures. Results A total of 50 patients were included. After 24 weeks, a greater improvement in VES was observed in the GP‐SOD group (19.85%; SE 4.63, P < 0.0001) compared with the placebo group (8.83%; SE 4.72, P = 0.0676). Tolerance was good in both groups. No related side‐effect was reported. Conclusions The use of GP‐SOD appears to be a useful add‐on to phototherapy in the treatment of vitiligo patients.