Objectives: This presentation aimed to address the effectiveness of botulinumtoxin-A (BoNT-A) for the management of melasma.
Introduction: Melasma is a common hyperpigmentary condition especially in individuals with dark-complexioned skin. The most well-known aggravating factor is ultraviolet (UV) exposure. Previous studies have been shown a beneficial effect of BoNT-A for the prevention and treatment of UVB-induced hyperpigmentation.
Materials / method: A pilot study was conducted in 14 patients with melasma. One side of each patient's face was treated with triple combination cream (4% hydroquinone, 0.05% tretinoin, 0.01% fluocinolone acetonide, TCC) for 12 weeks (monotherapy group), while the other side was treated with combined intradermal BoNT-A (2 sessions, baseline and week 12) and 12-week TCC application (combined group). Evaluations were performed at 2, 4, 8, 12, 16, 20, and 24 weeks with Visia®, Antera 3D®, Colorimeter®, MASI score on malar area (MASIm), GAIS score, and patient satisfaction.
Results: Fourteen subjects completed the study. A greater reduction of MASIm was observed in combined group when compared to the monotherapy group at 4 weeks (27.94 % vs 12.65 % reduction). Melasma recurrence was observed in monotherapy group after TCC discontinuation. At the end of the study, a higher patients satisfaction score was observed in the combined group when compared to monotherapy group. No serious adverse events were reported.
Conclusion: A combination of intradermal BONT-A injection and TCC demonstrated a beneficial effect in melasma treatment and prevention of melasma recurrence than TCC monotherapy.
Declaraciones
¿Ha recibido algún tipo de financiamiento para realizar su investigación sobre esta temática?
Si
Por favor especifique las entidades (individuo, empresa, sociedad): Botulinum toxin was supported by Merz Aesthetics. The supporter has no role in study design and conducting the study.
¿Ha recibido algún pago, honorario u otra compensación por su trabajo acerca de esta investigación?
No
¿Tiene vínculos financieros con alguna entidad que podría llegar a competir estrechamente con los medicamentos, materiales o instrumentos tratados en su investigación?
No
¿Posee o ha solicitado una patente relacionada a los materiales, productos o instrumentos utilizados en su investigación?
No
Este trabajo no cuenta con el apoyo de ningún financiamiento directo o indirecto. El autor asume plena responsabilidad sobre el mismo.