Background: New light shed on the cholinergic aspects of vitiligo pathophysiology. It was found that acetylcholine concentration increased with a significantly reduced expression of acetylcholinesterase in vitiliginous patches that return to normal up on repigmentation. Objective: The investigators will undertook this controlled, prospective pilot study to evaluate the efficacy and safety of botulinum toxin A in patients with localized vitiligo. Methods: 10 patients with focal or segmental vitiligo will be recruited. For each patient with focal vitiligo, one or two vitiliginous patches will be treated. The other patches will be used as control. For each patient with segmental vitiligo, half of the lesion will be treated. The other half will be used as a control. Botulinum toxin will be injected. The response will be analyzed at the initial visit, two weeks and at two and six months after therapy.
Age range
18 Years – 50 Years
Sex
ALL
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The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
the percentage of repigmentation in the previously depigmented patch, in form of color or size changes and folliculocentric repigmentation, of the treated and the control patches.
Timeframe: Patients will be re-examined at 2 wk, 2 and 6 months after therapy.