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Patient Experience and Quality of Patch Testing on the Legs vs Back

NCT06191627 · Status: RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 60

Last updated 2024-08-30

No results posted yet for this study

Summary

The gold standard for the diagnosis of allergic contact dermatitis is patch testing, during which allergens are affixed to the skin underneath tape and left for multiple days. A large area of clear skin is thus required for successful testing.

While the back is traditionally thought to be the ideal area for testing, the thighs may be more available or advantageous. This study seeks to randomize patients undergoing patch testing to have patches placed on the back or the thighs. The investigators seek to understand the benefits of testing on the legs versus the back in terms of patient experience as well as achieving a successful test. This study will measure patient experience using a survey administered to patients. Quality of testing will be assessed by study coordinators prior the removal of patches.

Conditions

  • Allergic Contact Dermatitis

Interventions

DIAGNOSTIC_TEST

Patch testing

Unlike many different dermatological diseases, a biopsy cannot easily distinguish ACD from irritant contact dermatitis or other forms of chronic dermatitis. Thus, the gold standard for diagnosis is patch testing. During patch testing, allergens are placed on the skin under occlusion using an aluminum disc and tape. When undergoing intensive testing for ACD, as many as 300 patches may be applied to a patient. Therefore, a large area of skin clear of rash is required, most often the back, but patches are frequently applied to the legs as well. Patches are applied by clinic patch technicians. They will proceed with their normal procedures, following the randomization to apply the patches to the appropriate location. Patches will be applied to the skin once, as is the normal standard of care. Patches are applied on day 1 and removed on day 3. Patients continue testing through day 5, though study elements will cease on day 3.

Sponsors & Collaborators

  • HealthPartners Institute

    lead OTHER

Principal Investigators

  • Sara Hylwa, MD · HealthPartners Institute

Study Design

Allocation
RANDOMIZED
Purpose
DIAGNOSTIC
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
89 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2024-03-27
Primary Completion
2024-08-30
Completion
2024-08-30

Countries

  • United States

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT06191627 on ClinicalTrials.gov