Biologics and Blistering - Using a Contact Dermatitis Model With Biologic Medications to Study Skin Inflammation Through Suction Blistering
Wei-Che Ko
Summary
The purpose of this study is to answer: how do inflammation and anti-inflammatory skin therapies work in the skin? Inflammation is a protective response from the body's immune system to injury, disease, or irritation. It is a process by which your body's white blood cells and the things they make protect you from infection from outside invaders such as bacteria and viruses.
Description
The purpose of this study is to study mechanisms of human skin inflammation by using an established model of transient contact dermatitis with pre-treatment by biologic drugs that block specific inflammatory signals or by topical steroids that block broad inflammatory signals. Contact dermatitis will be induced in a safe and controlled manner through the use of topical application of squaric acid dibutyl ester (SADBE), along with other common allergens, after which skin will be sampled for analysis using nonscarring skin biopsy techniques including suction blister biopsies and/or application o…
Eligibility
- Age range
- 18+ years
- Sex
- All
- Healthy volunteers
- Yes
Inclusion Criteria: * Healthy adult subjects over the age of 18 years with no skin diseases * Patients with dermatologic conditions such as atopic dermatitis, history of localized non-melanoma, keratinocytic skin cancer * Patients with previous clinical patch testing * UMass Medical School students and employees are eligible to participate. * Non-English-speaking individuals are also eligible with the assistance of an interpreter and an approved short form consent in the appropriate language. Exclusion Criteria: * Adults unable to give consent * History of the following specific dermatologi…
Interventions
- DrugSquaric Acid Dibutyl Ester
Sensitization dose: 2% Elicitation doses: {0.0001%, 0.00025%, 0.00075%, 0.001%, 0.0025%, 0.005%, 0.0075%, 0.01%, 0.025%, 0.05%, 0.06%, 0.07%, 0.08%, 0.09%, 0.1%, 0.2%, 0.3%, 0.4%, 0.5%, 0.6% 0.7%, 0.8%, 0.9%, 1.0%, 1.2%, 1.4%, 1.6%, 1.8%, 2.0%}
- OtherKnown patch test allergens
Positive patch test allergens during the course of clinical patch testing will be re-applied on the back followed by skin sampling
- DrugDupilumab
300mg
- DrugAdalimumab
40mg
- DrugUstekinumab
45mg
- DrugGuselkumab
100mg
- Drug
Location
- University of Massachusetts Chan Medical SchoolWorcester, Massachusetts