NCT04500834

Brief Summary

Metal allergen patch test study.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
200

participants targeted

Target at P25-P50 for phase_3

Timeline
Completed

Started Feb 2022

Typical duration for phase_3

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

July 30, 2020

Completed
6 days until next milestone

First Posted

Study publicly available on registry

August 5, 2020

Completed
1.5 years until next milestone

Study Start

First participant enrolled

February 7, 2022

Completed
3.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 31, 2025

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

March 31, 2025

Completed
Last Updated

February 13, 2023

Status Verified

February 1, 2023

Enrollment Period

3.1 years

First QC Date

July 30, 2020

Last Update Submit

February 10, 2023

Conditions

Outcome Measures

Primary Outcomes (1)

  • Number of participants with positive, negative, irritant or doubtful patch test responses and concordance between hydrogel and petrolatum allergens

    Number of patch test responses will be recorded, concordance between hydrogel and petrolatum allergens will be measured

    Days 3-21

Secondary Outcomes (5)

  • Evaluation of panel adhesion at visit 2 prior to panel removal

    Day 2

  • Evaluation of subject reported itching associated with test panels at visit 2 following panel removal

    Day 2

  • Evaluation of subject reported burning associated with test panels at visit 2 following panel removal.

    Day 2

  • Evaluation of tape irritation

    Day 21

  • Evaluation of chip irritation

    Day 21

Study Arms (1)

Positive reactions, Concordance with reference allergen

EXPERIMENTAL

All subjects will be patch tested with 11 experimental and 11 reference allergens. Rates of positive reactions will be evaluated using Cohen's kappa calculation.

Biological: Metal Panel T.R.U.E. Test

Interventions

Diagnostic patch test

Positive reactions, Concordance with reference allergen

Eligibility Criteria

Age18 Years - 99 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • years of age or older.
  • Past positive patch test result within the past 10 years to one of the metal allergens (other than nickel or gold), being tested on this study or strong suspicion of metal contact allergy based on results of the Qualification Questionnaire, part 2 Type of Metal Exposure.
  • Unable to become pregnant or willing to use an acceptable method of contraception to prevent pregnancy if female of childbearing potential,
  • Inability to become pregnant would include all male subjects and female subjects who are postmenopausal for at least 1 year, or surgically sterile- have had a hysterectomy, bilateral ovariectomy, uterine ablation or bilateral tubal ligation.
  • Acceptable methods of contraception include: 1) systemic birth control (i.e., oral contraceptives, skin patch, vaginal ring, implant, injection, or intrauterine device (IUD), which contains either a hormone or copper); 2) double barrier method (i.e., diaphragm, cervical cap, sponge, condom with spermicide); 3) IUD; 4) vasectomized partner; or 5) abstinence from sexual intercourse. Subject must agree to use acceptable contraception for the duration of the entire study.
  • Understands and signs the approved Informed Consent form which is consistent with all institutional, local and national regulations.

You may not qualify if:

  • Breastfeeding or pregnant (as determined by urine pregnancy test) or intending to become pregnant during the course of the study. Breastfeeding may be resumed upon completion of the study.
  • Acute dermatitis outbreak or dermatitis on or near the test area on the back.
  • Known or suspected infection of the skin, joints or other site(s) associated with metal exposure
  • Condition such as; fibromyalgia, chronic fatigue, depression, cognitive impairment, flu-like symptoms, diarrhea and/or headache without at least one of the symptoms related to metal exposure listed in Section 6.6.
  • Condition such as; psoriasis, dermatitis herpetiformis, mycosis fungoides or cutaneous T-cell lymphoma that may confound the evaluation of allergic contact dermatitis.
  • Inability to comply with patch test study requirements including multiple return visits and activity restrictions (e.g., protecting test panels from excess moisture due to showering or vigorous activity).
  • An opinion of the Investigator that deems the potential subject to be non-compliant, unable to return for study visits or complete the study as detailed in the protocol.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

DS Research

Louisville, Kentucky, 40241, United States

RECRUITING

Study Officials

  • Curt Hamann, M.D.

    Allerderm (dba SmartPractice)

    STUDY DIRECTOR

Central Study Contacts

Study Design

Study Type
interventional
Phase
phase 3
Allocation
NA
Masking
NONE
Purpose
DIAGNOSTIC
Intervention Model
SINGLE GROUP
Model Details: All subjects will be tested with 11 experimental metal allergens and corresponding metal allergens prepared in petrolatum
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

July 30, 2020

First Posted

August 5, 2020

Study Start

February 7, 2022

Primary Completion

March 31, 2025

Study Completion

March 31, 2025

Last Updated

February 13, 2023

Record last verified: 2023-02

Data Sharing

IPD Sharing
Will not share

There is no plan to share individual participant data with other researchers.

Locations