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170 active trials for Psoriasis

A Study of Subcutaneous Risankizumab Injection for Pediatric Participants With Moderate to Severe Plaque Psoriasis to Assess Change in Disease Symptoms

Psoriasis is a chronic, systemic, inflammatory disease in which skin cells build up and develop thick, red and white scaly patches on the skin. There is an unmet medical need for effective treatment in pediatric patients and this study is being done to evaluate risankizumab in pediatric participants with moderate to severe plaque psoriasis. This study will assess the change in disease symptoms. Risankizumab is a drug being studied for the treatment for plaque psoriasis in pediatric participants. This study has 4 parts. Part 1: Participants aged 12 < 18 will receive a fixed dose of risankizumab. Part 2: Participants aged 12 < 18 will receive; Period A: Risankizumab or ustekinumab based on body weight followed by; Period B: Risankizumab or no treatment. Period C: Re-treatment with risankizumab (if needed). Part 3 and Part 4: Participants aged 6 < 12 will receive risankizumab based on body weight. Around 132 participants will be enrolled in approximately 30 sites worldwide. Risankizumab and ustekinumab are given as a subcutaneous (under the skin) injection. Parts 1, 3, and 4: Risankizumab for 40 weeks with a follow-up call 20 weeks later for a study duration of approximately 65 weeks. Part 2: Period A: Risankizumab or ustekinumab for 16 weeks. Period B: Risankizumab or no treatment for 36 weeks. Period C: Re-treatment with risankizumab for 16 weeks. Follow-up call 20 weeks later for a study duration of approximately 81 weeks. Participants from each Part who meet eligibility criteria for an open-label extension (OLE) study may continue on risankizumab for 52 additional weeks. There may be a higher burden for study participants compared to standard treatment. Participants will attend monthly visits and medical assessments will check the effect of treatment through blood tests, questionnaires, and checking for side effects.

Start: July 2020
Pilot Study to Evaluate the Effect of Nicotinamide Riboside on Immune Activation in Psoriasis

Background: Psoriasis causes chronic inflammation in the body. Researchers want to see if a kind of vitamin B3 dietary supplement can help. This might lead to more treatment options. Objective: To test if the dietary supplement nicotinamide riboside can improve immune system function in the blood and skin of people with mild to moderate psoriasis. Eligibility: People ages 18-70 with mild to moderate active psoriasis not currently treated with biological therapy Design: Participations will be screened with: Medical and medication history Physical exam Measure of body mass index Skin exam Blood and urine tests Participants will have visit 1. They will have repeats of the screening tests. They will also have 2 skin biopsies. These will be from both lesions and unaffected areas. The areas will be injected with a numbing medicine. A round cutting device will remove small pieces of skin from each area. Participants will take the study supplement or a placebo starting at the first visit. Neither participants nor the study team will know which they receive. Participants will take capsules twice daily for a total of 4 weeks. Participants will then have visit 2. This will include the tests performed at visit 1. Participants may by contacted by phone or email between visits to see how they are doing. If participants develop any side effects in the 7 days after they stop taking the capsules, they may have another visit.

Start: August 2020
Assessing Patient Confidence in Biologic Medications

In dermatology, biologic medications are used to treat conditions such as moderate-to-severe psoriasis. These medications generally function to decrease inflammation or disrupt the inflammatory cycle. Examples of biologic medications commonly used in dermatology include tumor necrosis factor-alpha (TNF-alpha), blockers/inhibitors (etanercept, infliximab, certolizumab pegol, golimumab), interleukin 12/23 blockers (ustekinumab) and interleukin 17A blockers (secukinumab, ixekizumab). Due to biologic medication's efficacy and safety profiles, they have revolutionized dermatology and the general medical field. However, patients may be apprehensive about choosing a biologic medication for a variety of reasons. These include hearing negative information about the drug from friends or family, being nervous about injection, or seeing the drug or its side effects negatively portrayed in the media. Many patients are not aware that clinical trial evidence for biologics exist, and instead may rely on anecdotal evidence in choosing to take these medications. Because fear of the drug is inherently subjective, it can be modified with appropriate reassurance and presentation of evidence. Physicians must be able to ascertain from where the fear originates and how it can be countered. By understanding what kind of information will allow patients to be confident in their decision to take a biologic, dermatologists can improve outcomes and initiate use of this drug. Furthermore, reducing fear of side effects or adverse events may improve adherence to treatment and may improve treatment outcomes. The investigators propose this study with the goal of learning whether patients are more confident in the potential success of biologic medications in treating their psoriasis after being presented with clinical trial evidence, anecdotal evidence, or both.

Start: June 2017
Pleiotropic Role of TRPV1 in Psoriasis Inflammation

Widely expressed in the sensory nerve endings of the skin, Transient Receptor Potential Vanilloid 1 (TRPV1) is a receptor that plays an important role in the perception of pain and pruritus but also in skin inflammation, primarily by inducing the local release of several neuropeptides. Although the mechanisms by which TRPV1-sensitizing inflammatory mediators in damaged skin have received considerable attention, the role of TRPV1 in psoriasis has so far been little explored. However, two studies have reported that ablation of sensory nerves expressing TRPV1 reduced psoriasiform skin inflammation, demonstrating the neuronal contribution to inflammation in psoriasis. However, the expression of TRPV1 is not limited to neurons alone. TRPV1 is also expressed by epidermal keratinocytes and skin microvessels. For example, in 2018, transcriptomic analysis of psoriatic patient skins (by definition devoid of neuron nuclei) revealed that TRPV1 expression was increased in the skin of psoriatic patients suffering from itching (pruritus). Regarding human keratinocytes, it is recognized that the activation of TRPV1 present on their surface induces the release of pro-inflammatory factors such as cyclooxygenase-2. In addition, the investigators have demonstrated that TRPV1 has a pivotal role in the keratinocyte production of inflammatory mediators, which is mediated by the protease-activated receptor-2 (PAR-2). However, the role of vascular TRPV1 in inflammation is not described. The investigators hypothesize that in addition to neuronal TRPV1, non-neuronal TRPV1 receptors of non-neuronal cells (keratinocytes and endothelial cells) may be involved in the vicious circle of the inflammatory process characteristic of psoriasis. Putting TRPV1 at the center of the deregulation of the homeostatic balance including epithelial, neuronal and vascular inflammation in psoriasis is totally innovative.

Start: April 2021