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Successful Treatment of Refractory Vitiligo with a Combination of Khellin and 308-nm Excimer Lamp: An Open-Label, 1-Year Prospective Study
INTRODUCTION: Phototherapy is the cornerstone of treatment of vitiligo. The 308-nm excimer lamp (EL) induces T cell apoptosis and the stimulation of melanocyte proliferation. Khellin is a furanochromone with a chemical structure close to psoralens. The objective of the study was to evaluate the safe...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Springer Healthcare
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5825323/ https://www.ncbi.nlm.nih.gov/pubmed/29282672 http://dx.doi.org/10.1007/s13555-017-0218-x |
Sumario: | INTRODUCTION: Phototherapy is the cornerstone of treatment of vitiligo. The 308-nm excimer lamp (EL) induces T cell apoptosis and the stimulation of melanocyte proliferation. Khellin is a furanochromone with a chemical structure close to psoralens. The objective of the study was to evaluate the safety and efficacy of 1-year treatment of recalcitrant vitiligo with a combination of 308-nm EL and khellin. METHODS: Twenty patients with resistant vitiligo were included. Khellin was applied 45 min before irradiation with EL, twice a week, at a dose of 250 mJ/cm(2). The repigmentation was assessed in four categories: excellent repigmentation (ER) (> 75% repigmentation), good repigmentation (GR) (50–75% repigmentation), moderate repigmentation (MR) (25–50% repigmentation), and poor repigmentation (PR) (< 25% repigmentation). RESULTS: An ER was observed in 45% of patients (9/20), 5/20 (25%) achieved a GR, 3/20 (15%) an MR, and 3/20 (15%) a PR. Better response was observed on the face, neck, upper limb, hands, and abdomen. The mean number of procedures was 54.1 and the mean cumulative dose was 2967.5 mJ/cm(2). Six months after the last session no recurrences were observed. CONCLUSION: The combination of 308-nm EL and khellin is a safe and effective treatment and represents a new alternative therapy for vitiligo. Further comparative controlled randomized investigations are needed to confirm these promising results with the appropriate therapeutic protocols. |
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