View clinical trials related to Vitiligo.
Filter by:The purpose of this study is to: 1. Compare two different techniques in the melanocyte keratinocyte transplant procedure: Use of carbon dioxide laser versus use of dermabrasion 2. Compare two different dressings in the melanocyte keratinocyte transplant procedure: vaseline impregnated gauze versus collagen dressing
Hand psoriasis/eczema is a common problem which is characterized by itchy, erythematous and scaly lesions often with a long lasting and relapsing course. Treatment is difficult with considerable number of patients do not or only partially respond to the current treatments. Several studies have shown the therapeutic effectiveness of the combination of topical psoralen with long wavelength ultraviolet A radiation (PUVA) in treating hand psoriasis/eczema. Topical PUVA is has several short- and long-term side effects. Narrow band ultraviolet B (NB-UVB) has emerged recently as an important treatment for a variety of photoresponsive diseases including psoriasis and eczema. For most conditions (other than hand psoriasis/eczema) NB-UVB has been shown to have similar therapeutic results to PUVA with less side effects. There are only a few studies published on the efficacy of NB-UVB for hand psoriasis/eczema. Therefore, this study is aimed at comparing the efficacy and safety of t-PUVA and NB-UVB in treating these conditions.
Vitiligo is a chronic acquired disease characterized by well defined white macules and patches affecting the skin. There are many treatment modalities available for vitiligo, however, none of them cure the disease. Visible red light has been shown to stimulates melanocyte migration and proliferation resulting in repigmentation of vitiligo patches. However, there are only a few studies published on the efficacy of red light in vitiligo. This is a prospective single-blind randomized clinical trial to assess efficacy of red light in the treatment of vitiligo.
Vitiligo is a chronic acquired disease characterized by well defined white macules and patches affecting the skin. There are many treatment modalities available for vitiligo, however, none of them cure the disease. Ultraviolet A1 (UVA1) phototherapy has been shown to be useful for a variety of skin diseases. However, there are only a few studies published on the efficacy of UVA1 in vitiligo. This is a prospective single-blind randomized clinical trial to assess efficacy and safety of UVA1 in the treatment of vitiligo.
Vitiligo is a chronic acquired disease characterized by well defined white macules and patches affecting the skin. It has a major psychosocial impact on affected patients. There are many treatment modalities available for vitiligo, however, none of them cure the disease. Topical corticosteroids (CS) are the most effective monotherapy for localized vitiligo. Treatment with intralesional corticosteroids (ILCS) is commonly used in many dermatologic conditions. However, there are only a few studies published on the use of ILCS in vitiligo. This is a prospective double-blind randomized clinical trial to assess efficacy and safety of ILCS in the treatment of vitiligo. Four treatment sessions will be done over 4 to 6 months. The investigators will compare intralesional triamcinolone acetonide (active treatment) to normal saline (placebo).
Rationale: Punch grafting is a safe, simple and widely used technique for in vitiligo. However, no reliable data are available on the effect of punch depth and punch size. Objectives: Primary: to compare the efficacy and safety of different punchdepths and punchsizes in punch grafting in patients with segmental and non-segmental vitiligo. Secondary: to assess the practical aspects and patients preference of different punch grafting techniques. Study design: Prospective observer blinded randomised controlled study. Study population: 35 patients ≥ 18 years with segmental or stable non-segmental vitiligo who will receive regular treatment by punch grafting at the Netherlands Institute for Pigment Disorders (SNIP) at the Academic Medical Centre University of Amsterdam. Methods: Four depigmented regions on the trunk or upper extremities will be randomly allocated to either epidermal 1,5 mm punch grafting, epidermal 1mm punch grafting, dermal 1,5 mm punch grafting and dermal 1 mm punch grafting. After grafting, all regions will receive UV-therapy twice a week for 3 months. Three and six months after grafting, the repigmentation of the lesions will be assessed by measuring the outgrowth. Main study parameter/endpoint: Outgrowth of pigment after six months. Nature and extent of the burden and risks associated with participation, benefit and group relatedness: The study involves 16 additional punch grafts but no additional visits to our institute. Patients will not miss any regular treatment. The extra time due to participation in the study will be about 40 minutes. No increase of the risk of side effects is expected by placing 16 additional punch grafts. 1.
Rationale: Vitiligo vulgaris is a common acquired pigment disorder, which is characterised by the development of depigmented macules. It develops probably due to immunedestruction of melanocytes. Most effective therapies are immunsuppresive: 1. local immunesuppressives like corticosteroids and calcineurin inhibitors 2. phototherapy like PUVA and NB-UVB phototherapy. NB-UVB is the first choice A synergistic effect of UVA and topical corticosteroids (fluticasone proprionate 0.05% cream) has been described by Westerhof et al. in 1999. To our knowledge to date there are no publications comparing NB-UVB combined with a topical corticosteroid and NB-UVB alone. Objective: The objective of this study is to evaluate the clinical effects (onset and degree of repigmentation) of fluticasone proprionate 0.05% cream (thrice weekly) on NB-UVB phototherapy twice weekly for a period of 12 months. Study design: Prospective single blinded randomised controlled study. Study population: Consecutive patients ≥ 18 years, diagnosed with active vitiligo vulgaris who will receive NB-UVB phototherapeutic treatment at the Netherlands Institute for Pigment Disorders at the Academic Medical Centre (AMC), University of Amsterdam. Methods: The patient will be randomised for either NB-UVB phototherapy and fluticasone proprionate 0.05% cream or NB-UVB phototherapy alone for 12 consecutive months. Main study parameters/endpoints: The onset and degree of repigmentation is assessed by digital image analysis of a target lesion and blinded global physician assessment. Furthermore, the patients and doctors satisfaction will be assessed and changes of immunohistochemical parameters will be analysed in skin biopsies. Nature and extent of the burden and risks associated with participation, benefit and group relatedness: Subjects participating in the study will be asked to visit the institute 4 times. The time investment will be 20 minutes per visit. Additionally, patients will be asked for consent to take punch biopsies (3 mm) at the beginning and at the end of the treatment period. Hence, skin biopsies are not compulsory for participation in this study. Patients may chose to participate in the clinical non invasive part of the study. Known side effects of the NB-UVB phototherapy are redness, pruritus, xerosis cutis, burning sensation and conjunctivitis. These side-effects however, are largely dose-dependent and avoidable. Corticosteroid associated systemic side-effects (suppression of the adrenocortex) will be minimized by treating only a limited body surface [a maximum of 30% body surface] and by using an intermittent application scheme of three days a week in the long term treatment. The regions which are known to have a higher absorption are excluded (periorbital, axillary, inguinal and genital area). Both topical corticosteroids and NB-UVB are part of the Dutch and British guidelines for the treatment of vitiligo. There is no presumptive evidence or indication that the combination of these therapies may result in a higher risk of side effects. All together the burden due to the study is low and the risk for systemic or local side effects is low.
Vitiligo is a common chronic skin disease with 1-4% prevalence. It has a significant psychosocial impact on patients and society. Different treatment modalities with variable success rates are available. Phototherapy is among the successful treatments but gives modest results. Some reports documented the usefulness of Ginkgo Biloba (GB) when used alone in Vitiligo treatment.
Background Phototherapy UVB TL01 currently represents the first choice in treatment to induce the repigmentation of vitiligo spots. The problem though is that there are no systems or scales which enable an objective evaluation of the therapy, commonly known as percentage of repigmentation. Recently, a European Task Force (VETF, Vitiligo European Task Force) of experts on vitiligo, within the European Society of Pigmentation, has proposed a gravity classification on the basis of three parameters/standards - extension, progression and the level of depigmentation - and used to classify patients in ten European centres. The aim of the trial is to validate the VETF scoring system set up in relation with the therapeutic answer to the standard treatment for vitiligo and phototherapy. Leaving aside short term side effects, such as sunrush/erythema and sunburn, which are reversible and infrequent, the main problem with phototherapy is represented by the cumulative long term effects of ultraviolet rays. These can cause premature ageing of the skin (photoaging) and the appearance of skin cancer/neoplasia. Therefore the aim is to get the best results from phototherapy whilst limiting its length. Aims of the trial: 1. To validate the VETF scoring system. As phototherapy is currently the only universally accepted treatment for vitiligo, it seems logical to test the VETF scoring system first to evaluate the effectiveness of phototherapy. 2. Secondly, the target of this multicentric trial is to compare the effectiveness of two different phototherapy protocols; a first protocol foresees non-stop treatment for 6 months; a second protocol foresees periods of interruption during the treatment. This will help to verify whether interrupting a cycle of phototherapy is useful or not. This interruption might make the ultraviolet rays more effective 'stimulus on the melanocytes', and may also reduce long term damage caused by phototherapy.
The aim of this study is to survey melanocytes in the ability of self-assembly on biomaterials and functional analysis in vitro. Also, this study may provide a better way for treatment of vitiligo after understanding the functional aspects of melanocytes.