Active clinical trials for "Vitiligo"

In this study, the investigators demonstrated that in vivo THG microscopy can differentiate vitiligo lesions and normal skin based the optical nature of melanin. This THG-based procedure provides a valuable tool for noninvasive determination of third-order nonlinear susceptibility of melanin within the skin. It can also provide real-time histopathology information for treatment follow-up, without performing invasive skin biopsy.

This is a multicenter clinical trial, phase III, randomized, placebo-controlled, parallel group, enroll 94 patients, to assess the efficacy of ACH24 in the repigmentation of achromatic areas in patients with vitiligo.

Vitiligo is an acquired depigmentation disorder of great cosmetic importance, affecting 1-4% of the world's population. Phototherapy and topical agents such as corticosteroids, calcineurin inhibitors, and vitamin-D derivatives are basic treatment modalities have been used in vitiligo but there is still no effective and safe treatment for this disease. Resistance to therapy, treatment complications and recurrence after treatment are the major problems of the current treatments. There are no clinical studies of use of Bimatoprost in treatment of vitiligo, as it is supposed to cause more hyperpigmentation and hypertrichosis as compared to other topical prostaglandin analogues; hence, the investigators decided to use it in treatment of localized vitiligo.

The aim of this observational study is to evaluate the level of the IL-35 protein in tissue biopsy from patients with active & stable vitiligo.

The keratinocytes of lesional skin of vitiligo compared to normal and perilesional skin will differentially express genes correlating with melanocyte death. Narrow Band UVB should then hopefully reverse the pattern of gene expression back toward normal.

This study is a small pilot randomised controlled trial (RCT) comparing hand-held NB-UVB light devices with placebo devices. These devices will be used by the participants to treat their vitiligo at home for a period of four months. The main purpose of the trial is to provide feasibility data that can be used to inform the design of a future multi-centre RCT of these devices. Two hand-held UVB devices with similar manual operating system are being tested during this pilot study. This trial will help the investigators to establish which device is likely to be best for the main trial. Participants will be approached in a variety of ways (through secondary care, primary care and through direct advertising). Potential participants who contact the co-ordinating centre expressing an interest in the trial will be given more information about the trial, checked for preliminary eligibility, and sent an appointment for a screening visit at the closest recruiting hospital (Nottingham or Leicester). This screening visit will be conducted by a research nurse, but a dermatologist will also be present in order to confirm the diagnosis of vitiligo and to confirm the participant's suitability for UVB treatment at home. If eligible and willing to take part in the trial, participants will provide written informed consent and baseline data will be collected. In order to define the starting dose to be used when treating the vitiligo, a minimum erythema dose (MED) test will be conducted. An educational session will be provided by the research nurse outlining how to use the devices, how to assess side-effects of the treatment and how to complete the treatment diary. It is anticipated that the screening visit and educational session will take place on the same day and may take up to 1.5 hours. On the following day, a brief visit to the hospital will be required in order to examine the skin and read the MED results (if more convenient, the educational session may be delivered at this time). Once this has been done, participants will be given the devices to use at home - treatment is applied 3 times per week on alternate days. They will be followed up by telephone at week 1, week 2 and week 12 - in order to provide support and to monitor side-effects. Participants will be asked to keep a treatment diary that records when the treatment has been used and records side-effects experienced. Emergency contact details will be provided in case of urgent medical need. Participants will continue with treatment at home for the 16-week trial period. Two further hospital visits will take place in order to record outcome data

Vitiligo is a common depigmented skin disorder characterized by the white patches of skin and mucous membrane. It can be cosmetically disfiguring and lead to serious psychological problems for patients with vitiligo. In view of the difficulty of vitiligo treatment, the combination therapy is the most recommended. Despite that, the process of repigmentation usually last for several months to several years. So it is of great value to explore therapeutic methods that can improve appearance, relieve patients' pain and improve their quality of life in the process of treatment. The use of camouflage can vastly improve quality of life, both the European and Japanese guidelines of vitiligo management recommend that once vitiligo is diagnosed, camouflage should be used. The first commercial camouflage agent in China is CapulinTM by 2004. The main component of it is dihydroxyacetone. The repigmented mechanism is to combine with the keratin and to form a special brown polymer, which makes leukoderma close to normal skin. While, it is unknown whether camouflage has an impact on the drug absorption, efficiency of phototherapy and thus influences the repigmentation of vitiligo. Thus, the investigators undergo a randomized open-label self-controlled study to estimate the effects of combination therapy between camouflage and topical application and/or NB-UVB in the repigmentation of vitiligo.

study & verify the hypothesis of the involvement of TSLP in the pathogenesis of vitiligo in comparison to their levels in the healthy control persons.

308 nm excimer lamp and 308 nm excimer laser have both provide interesting results in treating vitiligo. They have the same wavelength but the type of emission of the photons is different. To date there is no direct comparative data concerning these two devices in this indication. The aim of the study is to make an intra-individual prospective comparison between these two phototherapies.

Although vitiligo is difficult to cure, recurrences are frequent after treatment, and many patients suffer from concerns about recurrence as well as disease. Psoriasis, another indication for ultraviolet radiation treatment, has been established that it can safely and effectively reduce the recurrence of psoriasis through monthly maintenance therapy. The aim of this study was to evaluate the efficacy of Narrow-band UV-B therapy for the prevention of relapse in vitiligo.