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Vitiligo: Targeted Therapies Add Color to Disease Pathophysiology
Khaled Ezzedine1, Terrence M Vance2, Iltefat H Hamzavi3
1Department of Dermatology, Henri Mondor University Hospital, Créteil, France; EpidermE, Université Paris-Est Créteil, UPEC, Créteil, France.
Abstract:
There is excitement in the air for patients with vitiligo. For the first time in decades, we have early case studies showing that targeted therapies can repigment vitiliginous skin, and well-powered clinical trials are underway. However, at the time of this writing, there is no Food and Drug Administration-approved drug for vitiligo. In a randomized clinical trial by Khemis et al. report negative results on a randomized clinical trial testing the combination of apremilast, a phosphodiesterase 4 inhibitor, and narrowband-ultraviolet B versus placebo and narrowband-ultraviolet B in patients with nonsegmental vitiligo. The results of this trial are a reminder that clinical management of vitiligo is challenging at best, even when combining anti-inflammatory and/or immunomodulating agents with repigmenting agents. However, these negative trials are critical in improving our understanding of this complex and disfiguring disease.
Insights
New clinical trials show that combining apremilast with narrowband ultraviolet B therapy did not improve repigmentation in nonsegmental vitiligo patients. This highlights the challenges in treating this skin condition.
Area of Science:
- Dermatology
- Immunology
- Pharmacology
Background:
- Vitiligo treatment has lacked FDA-approved drugs for decades, despite recent advancements.
- Targeted therapies show promise for repigmentation, but clinical trial results vary.
- Managing vitiligo remains challenging, even with combined therapeutic approaches.
Purpose of the Study:
- To evaluate the efficacy of combining apremilast (a phosphodiesterase 4 inhibitor) with narrowband ultraviolet B (NB-UVB) therapy.
- To compare this combination therapy against a placebo plus NB-UVB in patients with nonsegmental vitiligo.
Main Methods:
- A randomized clinical trial was conducted.
- Participants received either apremilast plus NB-UVB or placebo plus NB-UVB.
- Patient outcomes were assessed for repigmentation of vitiligo lesions.
Main Results:
- The combination of apremilast and NB-UVB did not yield significantly better repigmentation results compared to placebo and NB-UVB.
- The trial reported negative results, indicating no added benefit from apremilast in this context.
- This underscores the complexity of achieving successful vitiligo treatment.
Conclusions:
- Combining apremilast with NB-UVB is not an effective strategy for repigmenting nonsegmental vitiligo.
- Further research is needed to understand the underlying mechanisms of vitiligo and develop effective treatments.
- Negative trial results are crucial for advancing the understanding and management of vitiligo.
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