ClinicalTrials.gg
Not yet recruitingNCT05284253Updated Jan 30, 2024

Is There an Allergy to Pure Metallic Gold Microparticles?

An interventional study of Gold microparticles and Gold thiosulphate in Allergic Reaction, sponsored by Northern Orthopaedic Division, Denmark. Not yet recruiting. Open to participants aged 18 Years to 80 Years. Per ClinicalTrials.gov, last updated 2024-01-30.

Sponsored by Northern Orthopaedic Division, Denmark · Not applicable, Interventional, and Diagnostic

From the registry’s dates

  • Primary completion was expected by Aug 2024, 2 years 2 months ago, but the record still lists the study as not yet recruiting.
Phase
Not applicable
Study type
Interventional
Enrollment
60
Allocation
Non-randomized
Ages
18 Years to 80 Years
Sex
All
01

Study summary

The investigators hypothesize gold is inert and thereby there is no pure-gold allergy. The primary aim of this study is to measure the prevalence of allergy to metallic pure gold microparticles and allergy to GSTS.

Read the detailed description

TRUE test panel which includes gold sodium thiosulphate (GSTS), 1 % w/v in petrolatum, and gold microparticles, 20-micron diameter, 1 % w/v in petrolatum, will be added added to the baseline series. It will be applied to the upper back of healthy adults in aluminum Finn Chamber for 48 hours. Clinical evaluation will be performed 24 hours after removal the test according to standard procedures for evaluation of epi-cutaneous challenging (Johansen 2015).

02

Conditions studied

  • Allergic Reaction

Browse trials for

03

In context

Hypersensitivity

1,055 studies on the registry are indexed under Hypersensitivity; 149 are open to participants now.

This study's planned enrollment of 60 is below the median of 73 across 691 interventional studies indexed under Hypersensitivity.

Browse Hypersensitivity studies →

Lead sponsor

Northern Orthopaedic Division, Denmark is the lead sponsor of 61 studies on the registry; 4 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 80 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Patients with chronic dermatitis

Exclusion criteria

Exclusion Criteria:

  • age \< 18
05

Study design

Phase
Not applicable
Primary purpose
Diagnostic
Allocation
Non-randomized
Intervention model
Single group
Masking
Triple (Participant, Care provider, Investigator)
Enrollment
60 participants (estimated)

Study arms

  • Experimental
    Gold microparticles

    Metallic gold microparticles, 20-micron diameter, 1 % w/v in petrolatum

    Other: Gold microparticles

  • Active comparator
    Gold thiosulphate

    Gold Sodium Thio Sulphate, 1 % w/v in petrolatum

    Other: Gold thiosulphate

Interventions

  • OtherGold microparticles

    Metallic gold microparticles, 20-micron diameter, 1 % w/v in petrolatum

    Also known as: Patch test

  • OtherGold thiosulphate

    Gold Sodium Thio Sulphate, 1 % w/v in petrolatum

    Also known as: Patch test

06

What researchers measure

Primary outcomes

  1. Patch test

    Test materials will be applied on the upper back of the volunteers in aluminium Finn Chambers for 48 hours. Clinical evaluation will be performed 24 hours after removal of the test substances according to standard procedures for evaluation of epicutaneous challenging according to criteria of ICDRG (International Contact Dermatitis Research Group) (Johansen 2015). Reactions: doubtfull, faint macular erythema only; weak positive reaction, erythema, infiltration papules; strong positive reaction, erythema, infiltration, papular, vesicles; erythema positive reaction, intense erythema, infiltration and coalescing vesicles; negative reaction; irritant reaction; not tested

    Time frame: 72 hours

07

Study locations

No study locations are listed for this record.

08

References and documents

Individual participant data

Plan to share: Undecided

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jan 30, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05284253
Lead sponsor
Northern Orthopaedic Division, Denmark
Collaborators
Aalborg University
Responsible party
Sten Rasmussen, MD, PhD (Professor Head of Department of Clinical Medicine, Aalborg University) — Principal investigator
First posted
Mar 17, 2022
Start date
Jun 1, 2024 (estimated)
Primary completion
Aug 31, 2024 (estimated)
Completion
Oct 30, 2024 (estimated)
Last update
Jan 30, 2024

Study contacts

Sten Rasmussen, PhD
Contact
sten@dcm.aau.dk
25520462
Sten Rasmussen, PhD
principal investigator · Department of Clinical Medicine, Aalborg Unviversity

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is not yet recruiting, as verified in Jan 2024. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion