Clinical Evaluation of T.R.U.E. Test Allergens in Children an Adolescents

August 12, 2020 updated by: Allerderm

Clinical Evaluation of T.R.U.E. Test Panel 3.2 in Children and Adolescents (PREA II)

The objective of the study was to evaluate the diagnostic performance and safety of T.R.U.E. Test allergens in pediatric subjects aged 6-17 years old. In total, 11 allergens were evaluated; 7 new allergens on panels 2.2 and 3.2 and 4 previously approved allergens for which changes were made to dose and excipient.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

The evaluation of 7 new allergens on panels 2.2 and 3.2, Gold sodium thiosulfate, Hydrocortisone-17-butyrate, Bacitracin, Parthenolide, Methyldibromoglutaronitrile, Disperse blue 106, and Bronopol was the original objective of the study. The protocol was amended to include evaluation of 4 reformulated allergens; neomycin sulfate, potassium dichromate, ethylenediamne dihydrochloride and fragrance mix.

Study Type

Interventional

Enrollment (Actual)

116

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • California
      • San Diego, California, United States, 92123
        • Rady Children's Hospital
    • Colorado
      • Aurora, Colorado, United States, 80045
        • Anschutz Health and Wellness Center, University of Colorado
    • Kentucky
      • Louisville, Kentucky, United States, 40202
        • Dermatology Specialists
    • Oregon
      • Portland, Oregon, United States, 97239
        • Oregon Health & Science University

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

6 years to 17 years (Child)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Symptoms and history potentially consistent with allergic contact dermatitis
  • Children and adolescents 6-17 years of age, in general good health
  • Adolescent females 15 years of age or older (or with menarche) must consent to a urine pregnancy test; urine test results must be negative for study inclusion
  • Informed consent must be signed and understood by subject. If underage, informed consent must be signed and understood by parent or legal guardian, consistent with all institutional, local and national regulations

Exclusion Criteria:

  • Topical corticosteroid treatment during the last 7 days on or near the test area.
  • Systemic treatment with corticosteroids or other immunosuppressives during the last 7 days.
  • Subjects currently receiving (or received during the previous 3 weeks) other investigational drugs, treatments or devices, or participating in another clinical study
  • Treatment with ultraviolet (UV) light (including tanning) during the previous 3 weeks
  • Acute dermatitis outbreak or dermatitis on or near the test area on the back
  • Subjects unable to comply with activity restrictions (e.g. protecting test panels from excess moisture due to showering or vigorous activity)
  • Subjects unable or unwilling to comply with multiple return visits
  • Female subjects 15 years of age (or with onset of menarche) and older unable to consent to a urine pregnancy test, or those with a positive pregnancy test

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Diagnostic
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Positive Response Rates: 7 new and 4 reformulated allergens
Subjects will be patched with TRUE Test Panels 1.3, 2,2 and 3.2. Panel 1 allergens nickel sulfate (0.60 mg/cm2), potassium dichromate (0.054 mg/cm2), fragrance mix (0.050 mg/cm2) and ethylenediamine dihydrochloride (0.050 mg/cm2), Panel 2 allergen Methyldibromoglutaronitrile (0.0053 mg/cm2) and Panel 3 allergens Gold sodium thiosulfate (0.075 mg/cm2), Hydrocortisone-17-butyrate (0.020 mg/cm2), Bacitracin (0.60 mg/cm2), Parthenolide (0.0030 mg/cm2), Disperse blue 106 (0.050 mg/cm2 in PVP), 2-Bromo-2-nitropropane-1,3-diol (Bronopol) (0.25 mg/cm2) will be evaluated
Diagnostic test: Panels 1.3, 2.2 and 3.2 experimental allergens
Three allergen panels will be applied to the upper backs of study subjects and will be worn for 48 hours. Allergen test sites will be evaluated at 3, 4, 7(±1) and 21(±2) days post application.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Number of Participants With Negative, Positive, Irritant or Doubtful Reaction Scores
Time Frame: Investigator Determination of Positive Reaction: 21 days post application
Reactions at patch test sites were evaluated:Negative: No reaction, Irritant: Discrete, patchy, follicular, or homogenous erythema with no infiltration, Doubtful: Faint macular or homogenous erythema with no infiltration, 1+: Faint macular or homogenous erythema with no infiltration, 2+: Erythema, papules, infiltration, discrete vesicles 3+: Coalescing vesicles, bullous reaction
Investigator Determination of Positive Reaction: 21 days post application

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Number of Participants With Late or Persistent Positive Patch Test Reactions
Time Frame: Day 7-21

Late reactions are positive reactions that initially occur at 7-21 days after application of the panels.

Persistent reactions are positive reactions that persist from one visit to the next.

Numbers reported only include late or persistent positive patch test reactions. Not all positive reactions are late or persistent.
Day 7-21

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Allerderm

Investigators

  • Principal Investigator: Cory Dunnick, MD, Anschutz Health and Wellness Center, University of Colorado, Aurora, CO
  • Principal Investigator: Lawrence Eichenfield, MD, Rady Children's Hospital, San Diego
  • Principal Investigator: Patricia Norris, MD, Oregon Health and Science University

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

December 10, 2012

Primary Completion (Actual)

September 8, 2015

Study Completion (Actual)

September 8, 2015

Study Registration Dates

First Submitted

February 20, 2013

First Submitted That Met QC Criteria

February 21, 2013

First Posted (Estimate)

February 22, 2013

Study Record Updates

Last Update Posted (Actual)

August 21, 2020

Last Update Submitted That Met QC Criteria

August 12, 2020

Last Verified

April 1, 2020

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • SP 12 7NEW 401

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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