Psoriasis Vulgaris

This study aims to assess cutaneous and blood immune cell function of patients with psoriasis before and after initiation of treatment with the Tyrosine kinase 2 (TYK2) blocker, deucravacitinib.

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.

The goal of this clinical trial is to learn if topical metformin works to treat mild psoriasis vulgaris. It will also learn about the safety of topical metformin. The main questions it aims to answer are: Does topical metformin improve psoriatic plaques in early psoriasis? What medical problems do participants have when use topical metformin? Researchers will compare topical metformin to a placebo (a look-alike substance that contains no drug) to see if topical metformin works to treat psoriasis vulgaris. Participants will: put topical metformin or placebo twice daily for 2 months. Visit the clinic once every months for follow up. Keep a diary of their symptoms and any side effects. Skin biopsy will be taken from psoriatic plaque before starting treatment and another one will be taken after 2 months of starting treatment to assess the level of IL-17.

The goal of this observational study is to learn about the comprehensive changes in severe plaque psoriasis (Psoriasis Vulgaris) in adult participants undergoing standard treatment. The main questions it aims to answer are: How clinical signs of psoriasis, such as redness, scaling, and thickness, change after treatment? How specific skin features, visualized under dermoscopy, change after treatment? How participants' perceptions of psoriasis-related disability and overall quality of life improve after treatment? Participants will undergo standard medical treatment for severe psoriasis. Participants will be evaluated at the beginning of the study and again after treatment using clinical skin examinations, dermoscopic imaging, and validated questionnaires (Psoriasis Disability Index and quality of life parameters).

Biologics are effective agents for the treatment of psoriasis. The newest generation of biologics block interleukin 17 and 23. Physicians always prescribe these drugs in a fixed dose, but this may lead to under- and overdosing in some patients. Underdosing may lead to inadequate response or loss of response over time. Overdosage, on the other hand, can lead to higher risk of side effects and higher costs for the healthcare system. In daily clinical practice, physicians often tackle this real-world issue by blind trial- and- error dose modifications or switching to another biologic. In this study, we want to rationalize these dose modifications and optimize dosing based on the drug concentrations, measured in the blood of the patient (i.e. therapeutic drug monitoring). Depending on the drug concentration, the interval between injections will be lengthened or shortened with the aim to reach the required drug concentration to reach the best clinical result. The trial will be conducted in 14 Belgian hospitals where patients will be divided into 2 study groups: a group that will be advised on the dosing scheme of their biologic based on the measured drug concentration and a group that continues dosing as in daily clinical practice. We will monitor if the clinical response and quality of life remains stable. With this study, we will track drug concentrations as we believe that they can guide dosing of biologics and we hope to achieve better safety, lower healthcare expenses and higher patients' treatment satisfaction while striving for the best clinical response.

The goal of this clinical trial is to learn if a botanical Total Coumarin topical cream (TC Cream) works to treat psoriasis in adults. It will also learn about the safety of the topical TC Cream. The main questions it aims to answer are: * Does TC Cream improve the psoriasis disease symptoms? * What medical problems do participants have when applying TC Cream? * Does TC Cream improve the quality of life of psoriasis patients? Researchers will compare TC Cream to a placebo cream (a look-alike cream that contains no active drug) to see if TC Cream works to treat psoriasis. Participants will: * Topically apply the TC Cream or a placebo cream twice daily every day to affected skin for 8 weeks * Visit the clinic once every 2 weeks for checkups and tests * Keep a diary of their symptoms and their diseased skin conditions during the application of the topical cream

The goal of this clinical trial is to evaluate the safety and effectiveness of topical diacerein in adults with psoriasis vulgaris. The primary objective of the study is to compare the proportion of participants who achieve a clinically meaningful improvement in disease severity between the topical diacerein group and the placebo group. Participants will: Be assigned to receive topical diacerein 1% or placebo twice daily for a treatment period of 2 months. Attend follow-up visits at Weeks 2, 4, 6, and 8. Undergo an additional evaluation one month after treatment cessation.

Psoriasis is a common immune-mediated inflammatory skin disease affecting at least 100 million individuals worldwide. In Egypt, the prevalence of psoriasis ranges between 0.19% and 3% of the Egyptian people. It is associated with poor quality of life, reduced life expectancy and multimorbidity including psoriatic arthritis, obesity and cardiovascular disease. Vaspin (VASP, SERPIN 12) is a recently discovered adipokine that has been isolated from the visceral adipose tissue of a rat model of type 2 diabetes. It is coded by the gene SERPNA12 located on the long arm of chromosome 14q32.13 and consists of six exons and five introns.

In a prospective cohort study (n = 1.000), the investigators aim to investigate the correlation between cardiac biomarkers and advanced echocardiography and determine whether these are prognostic markers of heart disease in patients suffering from psoriasis.

Biologics, such as brodalumab, are currently the most effective treatment option for patients with moderate-to-severe psoriasis. But they are costly for health care systems and prescribed according to a 'one dose fits all' dosing regimen, leading to potential over- and undertreatment. Within this study we aim to investigate the predictive value of early serum trough levels of brodalumab and determine the therapeutic window of brodalumab in psoriasis patients.

A previous trial found that N. sativa oil was more effective as an antipsoriatic agent, particularly when taken as both a cream and a pill. This confirmed that N. sativa possesses antipsoriatic properties and can alleviate psoriasis symptoms

Psoriasis is a systemic chronic relapsing immune-mediated disease which often requires a long-term therapy. Psoriasis occurs in around 2-3% of the total global population. In Egypt, the prevalence of psoriasis ranges between 0.19% and 3%. Besides, it could have profound implications on the patients' psychological state and quality of life. It is presented by erythematous, scaly plaques over the preferred sites. The pathogenesis of this highly complex disease is still far from being fully understood. Keratinocytes' hyperproliferation and immune system dysfunctions are well recognized contributors, with numerous treatments targeting these unique immunologic dysfunctions.