The Role Of Neutrophil Proteases As Global Regulators Of Il-1 Family Cytokine Activity In Skin Disorders

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.

Recruitment Status

UNKNOWN

Total Enrollment

80 participants

Study Classification

OBSERVATIONAL

Study Start Date

2021-03-02

Study Completion Date

2021-06-30

Brief Summary

Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.

Pro-inflammatory cytokines are critically important drivers of inflammatory and autoimmune diseases and cytokine-targeted biologics have been transformative in the treatment of several inflammatory and autoimmune diseases. As the diversity of approved cytokine-targeted biologic therapies grows, it will become increasingly important to stratify patients on the basis of specific genetic or disease biomarker phenotypes to ensure that patients receive the appropriate cytokine-targeted biologic, at the appropriate dose, and at the appropriate time. This project aims to explore patterns of pro-inflammatory cytokine/chemokine expression within normal versus (i) psoriatic, (ii) eczematic, (iii) ichthyotic human skin, as well as in human and mouse models of skin inflammation, with the objective of identifying cytokine response profiles ('cytokine fingerprints') that will provide a molecular basis for (a) the stratification of patients into disease subtypes that (b) enable cytokine-directed biologics to be targeted towards patients that are most likely to benefit from them. The investigators anticipate that 'cytokine fingerprinting' will aid in the selection of the most appropriate biologics in patients that are most likely to benefit from such therapies.

Related Clinical Trials

Explore similar clinical trials based on study characteristics and research focus.

Immunological Mechanisms Underlying Mucosal IgE Responses

NCT06234761

Pathophysiology

RECRUITING

Platelet Activation in Chronic Inflammatory Skin Diseases

NCT01759693

Urticaria Atopic Dermatitis

UNKNOWN

A Study to Describe the Real-world Effectiveness, Safety and Patterns of Use of Dupilumab in Patients With Chronic Spontaneous Urticaria

NCT07316114

Chronic Spontaneous Urticaria

NOT_YET_RECRUITING

Study of the ITK Inhibitor Soquelitinib to Reduce Lymphoproliferation and Improve Cytopenias in Autoimmune Lymphoproliferative Syndrome (ALPS)-FAS Patients

NCT06730126

Autoimmune Lymphoproliferative Syndrome

RECRUITING PHASE2

Anti-IL-5 Therapy in Bullous Pemphigoid (BP)

NCT01705795

Pemphigoid, Bullous

COMPLETED PHASE2

Detailed Description

Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.

Neutrophils, the 'first responder' cells of the immune system are recruited rapidly to sites of infection or inflammation. Neutrophil granule proteases, cathepsin G, elastase and proteinase-3, are thought to function as anti-microbial effectors, cooperatively working to kill microorganisms during infection. However, evidence also suggests that these enzymes play an important role in the coordination and escalation of inflammatory reactions, but how this is achieved has remained obscure. IL-1 family cytokines are important initiators of inflammation but require processing by enzymes for activation. The IL-1 cytokine family is made up of 11 members, but this study will focus on the processing and activation of 7 of these pro-inflammatory cytokines (IL-1a, IL-1b, IL-18, IL-33, IL-36a, IL-36b and IL-36g). Members of the extended IL-1 family are found at high levels in barrier surfaces such as the skin, and thought to play a role in conditions such as psoriasis, atopic dermatitis/eczema and ichthyosis. Psoriasis particularly is associated with massive neutrophil influx. This study aims to investigate the physiological relevance of neutrophil proteases in the activation of IL-1 family cytokines in skin disorders.

The investigators plan to study the contribution of neutrophil proteases to inflammation in normal skin versus lesions from areas of skin affected by the conditions described above. The investigators are interested in measuring the levels of active neutrophil proteases in normal healthy skin versus skin lesions from affected sites compared to non-lesional, unaffected skin. The investigators also are interested to see if levels of neutrophil proteases found in lesions from affected skin sites are able to process and activate IL-1 family cytokines and contribute to inflammation in this way.

The investigators plan to include up to 80 participants; 20 healthy volunteers, 20 participants who will have a diagnosis of psoriasis, 20 participants who have a diagnosis of atopic dermatitis and 20 patients who have a diagnosis of ichthyosis with active lesions on their arms. Skin samples from normal versus lesional and non-lesional, unaffected skin will be taken by tape stripping method.

Conditions

See the medical conditions and disease areas that this research is targeting or investigating.

Psoriasis Vulgaris Atopic Dermatitis Ichthyosis Vulgaris

Study Design

Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.

Observational Model Type

CASE_CONTROL

Study Time Perspective

CROSS_SECTIONAL

Study Groups

Review each arm or cohort in the study, along with the interventions and objectives associated with them.