Extrinsic and Intrinsic Factors in Atopic Dermatitis Upon Systemic Immune Modulation

  • End date
    Dec 31, 2026
  • participants needed
  • sponsor
    Charite University, Berlin, Germany
Updated on 6 November 2021
topical agents


Currently, patients with moderate to severe atopic dermatitis are treated with dupilumab if unresponsive to topical treatment. However, not all patients who suffer from atopic dermatitis respond similarly to this treatment. Pattern recognition of immune cells (PRI) is an efficient method to screen patients to allow a more personalized therapy.

The main aim of this scientific explorative study is to unravel the changes in peripheral blood immune cell compositions in patients with atopic eczema undergoing dupilumab treatment. This allows the identification of phenotypes of treatment responders and non-responders and possible approaches of treatment modifications for non-responders.


A better understanding of the pathology of atopic dermatitis could lead to the development of new therapeutic strategies for this disease and contribute to better and more targeted disease management - an advantage for all patients with atopic dermatitis.

The PRI is a new bioinformatic analysis strategy that allows in-depth data analysis from flow cytometry with multiple variables. This facilitates the identification of meaningful T cell subpopulations, which are differentially abundant between two groups to predict responders and non-responders prior to dupilumab treatment.

Peripheral blood will be collected before, 4 weeks, 8 weeks, and 16 weeks after initiating the systemic treatment with dupilumab to identify recognition patterns/markers on the T cells. Therefore, a predefined multicolor flow cytometry panel was developed to analyse lineage, differentiation and activation markers.

Patients will receive a systemic therapy (dupilumab 600 mg loading dose, followed by 300 mg in two weeks intervals). Follow up visits will be performed every 3 months starting from the second visit (2nd visit will take place 4 weeks after initiating Dupilumab treatment).

The blood samples that are taken as part of this scientific study are pseudonymized in the research laboratories and stored for a period of 5 years after the end of this study or the publication of the results and destroyed.

Condition Atopic Dermatitis, Eczema (Atopic Dermatitis - Pediatric), Eczema (Atopic Dermatitis), Hand Dermatitis, Eczéma (Dermatite Atopique), Dermatitis, Dermatitis, Atopic, Dermatite Atopique, Eczema, ATOPIC DERMATITIS
Treatment Not applicable, observational study
Clinical Study IdentifierNCT05098821
SponsorCharite University, Berlin, Germany
Last Modified on6 November 2021


Yes No Not Sure

Inclusion Criteria

Age 18 and above
Diagnosis of atopic dermatitis for 1 year
Inadequate response to treatment with topical medications
Confirmed dupilumab treatment

Exclusion Criteria

Age below 18
Known or suspected allergy or reaction to any component of the dupilumab formulation
Known active allergic or irritant contact dermatitis that is likely to interfere with the assessment of the severity of AD
Severe conjunctivitis or blepharitis
Clear my responses

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If you are confirmed eligible after full screening, you will be required to understand and sign the informed consent if you decide to enroll in the study. Once enrolled you may be asked to make scheduled visits over a period of time.

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