Active clinical trials for "Psoriasis"

The goal of this clinical trial is to compare the immune cell population in blood of the participants with psoriasis/atopic dermatitis before and after UVB treatment. The main questions it aims to answer are: how immune cells in the PBMCs from blood of participants are affected by UVB treatment will UVB treatment expand the antigen-specific Treg cell population will UVB treatment enhance the suppressive function of Treg cells Participants giving written informed consent will donate their blood (20 ml) before UVB treatment begins. After 8 to 10-week treatment course, the participants will donate their blood (20 ml) again. Researchers will compare immune cell population changes in the PBMCs of participants before and after UVB treatment. In addition, researchers will purify Treg cells from participant blood before and after UVB treatment to test their suppressive activity by ex vivo suppression assay.

Phototherapy, including ultraviolet B (UVB) and ultraviolet A (UVA) light, has been used to treat a number of dermatologic conditions. Psoriasis is one of the most common conditions treated with phototherapy, in which phototherapy is often indicated for extensive disease with contraindications for other systemic treatments. The mechanism of action of phototherapy for the treatment of psoriasis is not completely understood; however, it is known that UVB light induces apoptosis of pathogenic T cells and keratinocytes, which may reduce the overactive immune response and epidermal hyperproliferation. Phototherapy has shown some efficacy for other diseases, such as alopecia areata (AA) and polymorphous light eruption (PMLE). However, phototherapy is not always an accessible treatment option for patients due to cost or lack of time.

The objective of the resarch is to study the cytokine profile of patients with psoriatic arthritis and psoriasis in order to better understand the pathophysiology of the disease and the contribution of cytokines to the presence or absence of joint involvement. This research will compare cytokines levels in sera, in PBMC culture after LPS or CD3/CD28 agonist antibodies, and in skin biopsy.

Design: Single-center open-label clinical trial. Objective: Evaluate if tildrakizumab reverses peripheral blood leukocyte DNA methylation (epigenetic aging) observed in chronic psoriasis. Number of subjects: 30. Intervention group: 20 (10 men, 10 women) with moderate-to-severe psoriasis. Control group: 10 (5 men, 5 women) with other skin diagnosis. Population: >35-year-old subjects will be recruited from Brown Dermatology clinics. Biological samples: Blood samples will be collected for all subjects at screening, and weeks 16, 28 and 52. Urine pregnancy tests will be performed for females of childbearing potential at weeks 4, 16, and 28. Serum pregnancy test and QuantiFERON test for tuberculosis will be performed at screening visit. Safety parameters: Adverse events, and screening, week 16, week 28 blood samples laboratory results. Females of childbearing potential: serum pregnancy test at screening visit, urine pregnancy test at weeks 4, 16, and 28. Data Safety Monitoring Board will review data and laboratory flags quarterly. Study center: Rhode Island Hospital, Providence, RI, USA. Trial Duration: One year.

This study aims to assess cutaneous and blood immune cell function of patients with psoriasis before and after initiation of treatment with the IL23 blocker, tildrakizumab.

This study examines the effect of IL-23 blockade with Tildrakizumab on the immune cells of psoriatic skin lesions.

Psoriasis (PsO) is a systemic immune disease that affect 2-4% of the population worldwide. PsO causes tremendous burden in terms of quality of life, psychological impact, disability and work productivity of affected individuals. PsO is associated with an increased risk of cardiovascular morbidities and mortality in the long term. Up to 30% of PsO patients develop psoriatic arthritis (PsA) over time causing joint deformities and further disabilities. Majority of patients with PsA developed PsO first, and arthritis develop 5-10 years afterwards. PsA and PsO are increasingly recognized as two entities under the umbrella of psoriatic diseases. Advances in biological treatments have greatly improved the prognosis of patients with PsO. Remarkable efficacies have been demonstrated for patients with moderate to severe PsO in randomized controlled trials (RCTs). However, the high cost of biological treatment is one of the major barriers to prescription of biological treatment and many patients may have limited access to these treatments. The best strategy of treatment for PsO that takes into account efficacy and cost effectiveness is unknown. For instance, whether some PsO patients can stop biological treatment and be retreated with non-biologic medications upon relapse, which may enhance cost effectiveness of treatment. Preliminary studies have shown that some PsO patients were able to maintain good control of disease without medications after biologics withdrawal. The patho-immunological mechanisms behind long term remission after drug withdrawal is poorly understood. Better understanding on patho-immunological mechanisms on maintenance of remission and relapses will advance the development of biomarkers that eventually guide development of best treatment strategies for PsO. Ixekizumab is a humanized immunoglobulin G4 (IgG4 kappa) monoclonal antibody targeting interleukin (IL)-17A. It is highly efficacious in the treatment of plague PsO with and favorable safety profile as shown in randomized controlled trials, and is an approved treatment for moderate-to-severe PsO by the U.S. Food and Drug Administration and Health Sciences Authority. With the proven efficacies, ixekizumab could be a choice of first-line treatment for patients with moderate to severe PsO. The 2013 American Academy of Dermatology position statement have stated that the old paradigm of stepwise-therapy starting first with phototherapy and oral systemic therapies before biologic treatment is not required for patients with moderate to severe PsO. In the recent 2017 update of the European S3 guidelines also recommend the use of IL-17 inhibitors as either a first- or second-line agent. In a RCT that evaluated relapses after withdrawal of ixekizumab among patients who achieved a clearance of PsO, loss of PsO clearance were seen after a median of 20 weeks. Response can be successfully recaptured in over 80% of patients with retreatment with ixekizumab, suggesting that the treatment regimen could be interrupted in some patients. However, real-life data on biologic treatment or withdrawal for moderate to severe PsO is scatty.

This study examines the effect of Goeckerman therapy (a combination of phototherapy and topical crude coal tar), crude coal tar alone, and phototherapy alone on the immunologic and genetic environment within psoriatic skin lesions.

The purpose of this study is to assess the effect of a biologic drug targeting the Interleukin (IL)-17 pathway (secukinumab) on brain plasticity and examine whether the plastic changes correlate with the improvement of perception of well-being, itch, and pain in participants with psoriasis.

Despite advances in effective psoriatic disease treatment, the disease still has a serious impact on mental health and well-being of millions of patients. Up to 20.7% of patients report poor mental health, compared to 7.1% of the general population. Mental health treatment involves a combination of medication and talk therapy to address such issues. However, there is increasing evidence that optimizing behaviors such as sleep, physical activity, stress, and nutrition are critical components in improving mental health too. Numerous online health programs have evolved to help patients optimize such behaviors but very little exists for patients with psoriatic diseases. The "Immune Strength" 12 week program utilizes online electronic coaching (eCoaching) with weekly access to a wellness professional to provide a low-cost, high-touch, personalized intervention that patients can access 24/7. In conjunction with traditional clinical care, the goal of this program is to leverage the convenience, affordability, scalability and effectiveness of an online eCoaching program to improve key physical behaviors, thereby reducing the mental health burden experienced by psoriatic disease patients.