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  • Title: Narrowband ultraviolet B phototherapy combined with intralesional injection of either latanoprost or platelet-rich plasma for stable nonsegmental vitiligo.
    Author: Fawzy M, Al-Mokadem S, Alshereef M, Elkholy B.
    Journal: Photodermatol Photoimmunol Photomed; 2024 Jan; 40(1):e12929. PubMed ID: 37984828.
    Abstract:
    BACKGROUND: Narrowband ultraviolet B (NB-UVB) phototherapy is the cornerstone of vitiligo treatment. Its combination with other treatments usually yields a better response. Latanoprost, a prostaglandin F2α analog, and autologous platelet-rich plasma (PRP) have been reported to be effective for vitiligo. AIM: To evaluate the efficacy of NB-UVB combined with intralesional latanoprost or PRP for stable nonsegmental vitiligo (NSV). METHODS: Sixty patients with stable NSV were recruited and randomly allocated to two equal groups. NB-UVB phototherapy was administered twice a week for all patients. Additionally, group A received intralesional latanoprost injections once weekly, while group B received intralesional autologous PRP injections every 2 weeks. RESULTS: At 24 weeks, excellent repigmentation response was observed in 26.7% and 13.3% of patients in the latanoprost/NB-UVB and PRP/NB-UVB groups, respectively, with no significant difference in degrees of repigmentation between the two groups. However, the Vitiligo Extent Score for a Target Area (VESTA) score was significantly higher in the latanoprost/NB-UVB group (p = .032). Moreover, lesions located on nonacral skin responded significantly better than those on acral skin. Only erythema was significantly higher in the PRP/NB-UVB group, while the recurrence of depigmentation was significantly higher in the latanoprost/NB-UVB group. CONCLUSIONS: Both latanoprost and PRP have the potential to be effective add-on therapies to NB-UVB phototherapy for stable NSV, with latanoprost resulting in a greater repigmentation response and PRP producing a more stable response.
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