Alloknesia (touch-triggered itching) in adults with atopic dermatitis

Study of Alloknesia in Atopic Dermatitis

University Hospital, Brest · NCT06923202

This study will see how common touch-triggered itching (alloknesia) is and how it affects adults with atopic dermatitis.

Quick facts

Study typeObservational
Enrollment160 (estimated)
Ages18 Years and up
SexAll
SponsorUniversity Hospital, Brest (other)
Locations8 sites (Angers and 7 other locations)
Trial IDNCT06923202 on ClinicalTrials.gov

What this trial studies

This observational study will enroll adults with atopic dermatitis diagnosed for at least six months to measure the frequency of alloknesia and its impact on daily life. Participants will complete standardized questionnaires and undergo a clinical examination at participating French hospitals to document symptoms and quality-of-life consequences. People on prolonged systemic treatment or unable to complete questionnaires are excluded. Collected data will be used to describe prevalence and burden of alloknesia across the study sites.

Who should consider this trial

Good fit: Adults (18 years and older) with a diagnosis of atopic dermatitis for more than six months who can complete questionnaires and are not on long-term systemic therapy are ideal candidates.

Not a fit: Children, patients currently receiving systemic treatments for a month or longer, those under legal protection, or anyone unable to complete questionnaires are unlikely to benefit from participating.

Why it matters

Potential benefit: If successful, the results could help clinicians recognize and address touch-triggered itching, leading to better symptom management and improved quality of life for affected patients.

How similar studies have performed: This is a novel effort because the epidemiology and burden of alloknesia in chronic itch have not been previously studied.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Age ≥18 years
* No opposition from the patient
* Diagnosis of atopic dermatitis more than 6 months old

Exclusion Criteria:

* Patients who are physically or mentally unable to complete the questionnaires.
* Patients on systemic treatment for 1 month or more
* Refusal to participate
* Patients under legal protection (guardianship, curatorship)
* Patients under court protection

Where this trial is running

Angers and 7 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.

View on ClinicalTrials.gov →

Conditions: Atopic Dermatosis, Alloknesie

Last reviewed 2026-05-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.