View clinical trials related to Dermatitis.
Filter by:Introduction Pollution is a significant public health issue. Research has shown a positive correlation between air pollution and chronic inflammatory dermatoses, including psoriasis and eczema. The incidence of these diseases has been steadily increasing since the beginning of industrialization. The mechanism behind this association involves the activation of the aromatic hydrocarbon receptor (AhR). The aryl hydrocarbon receptor (AhR) plays a role in regulating the balance between T helper 17 (TH17) and regulatory T cells (TREG), as well as in generating oxidative stress and producing pro-inflammatory cytokines. Studies in cultured keratinocytes have shown that a non-competitive antagonist that modulates AhR activity can reduce cutaneous inflammatory processes induced by polycyclic aromatic hydrocarbons (PAHs). Objectives: It has been suggested that activation of the AhR by PAHs and dioxins may be related to the pathogenesis of atopic dermatitis and psoriasis. The main objective is to compare the levels of AhR pathway activation markers between cases and controls. Secondary objectives include correlating environmental exposure to AhR ligands with disease severity in patients. Finally, we will compare the expression of inflammatory and AhR activation markers in cultured peripheral blood mononuclear cells (PBMCs) after in vitro stimulation with benzo(a)pyrene. Material and methods: The study will measure exposure to pollutants by determining blood dioxins and urinary PAH metabolites. Pro-inflammatory cytokines IL1β, TNFα, IL23, IL17 and IFNγ and Malondialdehyde (MDA) serum concentrations will be measured by ELISA. The TREG and TH17 lymphocyte population ratio will be evaluated by flow cytometry on isolated PBMCs. Additionally, the level of expression of CYP 1A1 and 1B1, pollutant-metabolizing enzymes induced by AhR, will be assessed on isolated PBMCs. The expression levels of the AhR and NfkB active fractions will be determined by immunofluorescence. Subsequently, levels of AhR activation markers will be compared after stimulation of PBMCs with benzo(a)pyrene.
Atopic Dermatitis is associated with pronounced changes in the lipid composition in the skin. The lipid changes are influenced by and contributing to both the inflammatory circuit and the impaired barrier as well as changes in the skin microbiome This nutritional study will investigate the effect of long-chain monounsaturated fatty acid Cetoleic acid on atoptic dermatitis. Earlier studies have shown a anti-inflammatory effect of celoteic acid.
The purpose of this study is to evaluate the safety, tolerability and pharmacokinetics of IBI356 in Healthy Participants and in Atopic Dermatitis Patients
In adolescents treated with dupilumab, clinical trials showed significant improvement of atopic dermatitis (AD) signs and symptoms, with a good safety profile. In these clinical trials, only patients with Eczema Area and Severity Index (EASI) score greater than or equal to (≥) 16 were enrolled, and effectiveness on sensitive/visible areas was not specifically evaluated. Further data about the effectiveness of dupilumab in adolescent participants with moderate to mild EASI score and severe itching and/or localized AD are therefore necessary to better understand the potential clinical benefits of dupilumab in these populations. This is an Italian multicenter, 52-week observational (non-interventional) study which will collect data on the characteristics of adolescent (aged 12 to 17 years) participants who suffer from severe AD with EASI score less than (<) 16, eligible for systemic dupilumab treatment according to Italian reimbursement criteria. It will study the real-world effectiveness and safety of dupilumab in this population, the effect of dupilumab on itching (pruritus), sleep, quality of life and related outcomes, localized AD in sensitive/visible areas, and on coexisting atopic conditions in adolescent participants who receive dupilumab for AD. It will also document dupilumab treatment satisfaction and dupilumab discontinuation in the study participants.
The gold standard for the diagnosis of allergic contact dermatitis is patch testing, during which allergens are affixed to the skin underneath tape and left for multiple days. A large area of clear skin is thus required for successful testing. While the back is traditionally thought to be the ideal area for testing, the thighs may be more available or advantageous. This study seeks to randomize patients undergoing patch testing to have patches placed on the back or the thighs. The investigators seek to understand the benefits of testing on the legs versus the back in terms of patient experience as well as achieving a successful test. This study will measure patient experience using a survey administered to patients. Quality of testing will be assessed by study coordinators prior the removal of patches.
An eczematous reaction is an inflammatory intolerance response of the skin. In acute phase the reaction is characterized by erythema and blistering while in the chronic phase it presents as dryness, itchiness and lichenification. Irritative contact dermatitis describes these patterns of reaction in response to toxicity of chemicals on the skin cells, which trigger inflammation by activation of the innate immune system.
The aim of this within-subject randomized study is to examine the efficacy of a VR immersive game for pain and anxiety management of children during the subcutaneous injection of dupilumab for moderate to severe atopic dermatitis. We will recruit children from 6 to 17 years. The main research question is: 1. Does VR immersive game will generate less anxiety and pain than standard procedures, for children receiving dupilumab injection for moderate to severe atopic dermatitis? 2. Does the occurence of side effects is similar between both study groups? Participants will be randomized according to either sequences: VR-Standard care or Standard care-VR. During the VR sequence, participants will be playing the VR immersive game during the injection. During the Standard care sequence participants will not benefit from any pain management but passive distraction tools will be offered (and documented) to children. The investigators will take measures of pain and anxiety, using validated scales, before and after the procedures at each sequence.
This is a parallel group, Phase 3, multinational, multicenter, randomized, double-blind, placebo-controlled, 3-arm monotherapy study for treatment of participants diagnosed with moderate to severe atopic dermatitis (AD), whose disease is not adequately controlled with topical prescription therapies or when those therapies are not advisable. The purpose of this study is to measure the efficacy and safety of treatment with amlitelimab solution for SC injection compared with placebo in participants with moderate to severe AD aged 12 years and older. Study details include: At the end of the treatment period, participants will have an option to enter a separate study: the blinded extension study EFC17600 (ESTUARY). For participants not entering the blinded extension Study EFC17600 (ESTUARY), the study duration will be up to 44 weeks including a 2 to 4-week screening, a 24-week randomized double-blind period, and a 16-week safety follow-up. For participants entering the blinded extension Study EFC17600 (ESTUARY), the study duration will be up to 28 weeks including a 2 to 4-week screening and a 24-week randomized double-blind period. The total treatment duration will be up to 24 weeks. The total number of visits will be up to 10 visits (or 9 visits for those entering the blinded extension study EFC17600 (ESTUARY).
Objectives: The aim of this study is to evaluate the effectiveness of 3M™ Cavilon™ Advanced Skin Protectant in the treatment of partial-thickness wounds caused by moisture (MASD) compared to usual wound care treatment in Belgian nursing homes. Methodology: RESEARCH DESIGN: A randomized controlled multicentre clinical trial. DATA COLLECTION: Randomization/Blinding and Participant Numbering: The patients will be allocated 1:1 by block randomization, using the REDCap Randomization Module, to either Cavilon™ Advanced Skin Protectant or local nursing home partial-thickness wound (MASD) treatment protocol, yielding one study group. Due to the obvious differences between the comparative nursing home wound care treatment products and the study device, the study nurses cannot be blinded. A blinded assessor will centrally assess the time to healing and other healing outcomes based on the photographs of the study area. Study area: Defined as all partial-thickness, skin damaged areas on the body - due to exposure to (a) incontinence body fluids, (b) wound exudate, (c) stomal- or fistula effluent or digestive secretions. Study duration: 21 days or until complete healing of the moisture associated skin damage (complete epithelialization). Skin (MASD) assessment: Daily skin assessment of the study area is to be conducted by the study nurses. Relevant wound and patient information will be recorded (incontinence status, presence of a urinary catheter or faecal management system, number of absorbent pad or diaper changes, number of cleansing procedures, type of stoma, number of applications regarding Cavilon Advanced Skin Protectant or usual nursing home wound treatment protocol). Digital planimetry software (PictZar® version 7.6.1 ss) will be the main mode of assessing wound healing. Therefore, daily photographs will be taken with each daily skin assessment after removal of all visual product to ensure blinded skin assessment by the central reviewer. Pain assessment: The Wong-Baker FACES® Pain Rating Scale will be used to assess pain daily. Treatment-related pain (pain experienced during treatment (cleansing and product application)) and wound related pain (pain perception specifically caused by the MASD lesion) will be assessed. Nursing time assessment: Time per cleansing and time per treatment application.
Allergic contact dermatitis (ACD) is a common inflammatory skin disease, affecting approximately 15-20% of the general population in industrialized countries and ranking first among occupational diseases in many European countries. ACD typically presents as a severe skin inflammation with redness, edema, oozing and crusting. It is characterized by a delayed type IV hypersensitivity response mediated by allergen-specific T cells in sensitized individuals. Current diagnosis relies on clinical investigations by diagnostic patch testing with suspected allergenic chemicals. The patch test method aims at reproducing the eczematous lesions by applying occlusive patches containing the suspected allergens to the patient's healthy skin. This is a time consuming and costly process. It requires experienced medical staff to read the reaction, and is only performed by a limited number of expert dermato-allergologists across Europe (which limits the accessibility of suspected ACD patients to diagnosis). Finally, if the robustness of the patch-test method is undisputable, it cannot be neglected that patch-test results are sometimes false positive or non-relevant, which leads to non-appropriate disease management. Therefore, there is today an urgent need for the availability of new ex vivo/in vitro tools based on the modern understanding of the immune mechanisms of ACD to enhance the current diagnostic procedure, and open new avenues for a personalized diagnosis of skin ACD. In this context, the team "Epidermal Immunity and Allergy" (CIRI, Inserm U1111) recently characterized the molecular signatures of ACD (using microarrays), based on positive patch-test reactions to reference chemical allergens or non-allergenic irritants. It was shown that there are unique molecular profiles and signaling pathways characterizing each inflammation. Machine learning methods were then developed to identify and validate classification algorithms based on the expression levels of a minimum set of biomarkers (n=12), enabling very good discrimination between allergen-induced and irritant-induced patch-test inflammation (which was confirmed by complementary quantitative RT-PCR analyses). Finally, some patients with weak positive patch-test reactions to allergens show no/low marks of allergy molecular signature, questioning about the reliability/relevance of their patch-tests results. Our results therefore stress the value of molecular profiling of patch-test reactions to improve/reinforce clinical ACD diagnosis, and to help the dermatologist to discriminate true versus false positive patch test reactions. Importantly, those results also open new avenues for the development of a future point care diagnosis. Indeed, it is currently is estimated that only 20% of patients being sent for allergology work-ups suffer from true skin allergy (i.e. patients with positive patch-tests, combined with relevant clinical history and confirmatory use tests). Most of the patients (80%) are in fact suffering from skin irritation. Therefore, the detection of ACD biomarkers in active eczema lesions could provide the dermatologist with major information to improve and accelerate its clinical diagnosis. This could also prevent numerous patients (negative for ACD biomarkers) being sent for unnecessary allergology work-ups. However, to date, it remains to be demonstrated that (i) the same panel of ACD biomarkers is expressed both in acute eczema lesions and positive patch-test reactions, and that (ii) the detection of these biomarkers allows for a sensitive and reliable diagnosis of skin allergy. The main objective of the study will be to make the proof of concept that the expression of allergy biomarkers correlates with patients suffering from true ACD (i.e. patients with high biomarker expression in acute lesions, positive patch-tests and relevant clinical history), versus those developing skin irritation (no/low biomarker expression in acute lesions, negative patch-tests, and lack of clinical history).