NCT05891743

Brief Summary

The goal of this observational study it to learn about the prevalence of skin sensitization and dermatitis among epoxy-exposed workers in the wind turbine industry. The main question it aims to answer is: \- What is the prevalence of skin sensitization and dermatitis among workers in the wind turbine industry who are exposed to epoxy? Participants will be asked to perform Patch Test, which is considered the Gold Standard test for identifying the cause of occupational contact allergic dermatitis. Researchers will compare the results of the epoxy-exposed group with those of a control group comprising non-exposed workers from the same industry. This analysis will help determine if there is a higher prevalence of skin sensitization among workers exposed to epoxy.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
126

participants targeted

Target at P50-P75 for all trials

Timeline
Completed

Started Mar 2024

Shorter than P25 for all trials

Geographic Reach
1 country

1 active site

Status
completed

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

May 26, 2023

Completed
12 days until next milestone

First Posted

Study publicly available on registry

June 7, 2023

Completed
9 months until next milestone

Study Start

First participant enrolled

March 8, 2024

Completed
7 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 16, 2024

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

October 16, 2024

Completed
Last Updated

November 1, 2024

Status Verified

October 1, 2024

Enrollment Period

7 months

First QC Date

May 26, 2023

Last Update Submit

October 31, 2024

Conditions

Outcome Measures

Primary Outcomes (1)

  • Prevalence of skin sensitization.

    Allergens will be applied to the participant's back using IQ Chambers® (Chemotechnique) and secured with 4fix® adhesive tape for 48 hours. Readings will be conducted on day 2-3 and, if necessary, on days 4-7, following the ESCD guidelines.

    2-3 days

Study Arms (2)

Epoxy_Group

Workers who are exposed to epoxy handling procedures, specifically filling and lamination tasks performed by production workers, mainly in finishing areas.

Diagnostic Test: Patch Test

Non_exposed

Workers from other areas unrelated to epoxy handling procedures, that will be included in the study as the non-exposed control group.

Diagnostic Test: Patch Test

Interventions

Patch TestDIAGNOSTIC_TEST

The Patch Test will include the European baseline series, as well as the epoxy and isocyanate series. Additionally, specific products commonly used in the workplace, such as glues, resins, and paints, will be prepared and included in the testing.

Epoxy_GroupNon_exposed

Eligibility Criteria

Age18 Years - 70 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Workers from the wind turbine industry

You may qualify if:

  • Workers from the wind turbine industry

You may not qualify if:

  • Pregnant females
  • Workers previously diagnosed with epoxy resin sensitization

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Siemens Gamesa Renewable Energy (SGRE)

Aveiro, Soza, 3840-346, Portugal

Location

Related Publications (5)

  • Aalto-Korte K, Pesonen M, Suuronen K. Occupational allergic contact dermatitis caused by epoxy chemicals: occupations, sensitizing products, and diagnosis. Contact Dermatitis. 2015 Dec;73(6):336-42. doi: 10.1111/cod.12445. Epub 2015 Jul 30.

    PMID: 26230376BACKGROUND
  • Prodi A, Rui F, Fortina AB, Corradin MT, Filon FL. Occupational sensitization to epoxy resins in Northeastern Italy (1996-2010). Int J Occup Environ Health. 2015;21(1):82-7. doi: 10.1179/2049396714Y.0000000095.

    PMID: 25633931BACKGROUND
  • Geier J, Lessmann H, Hillen U, Skudlik C, Jappe U. Sensitization to reactive diluents and hardeners in epoxy resin systems. IVDK data 2002-2011. Part II: concomitant reactions. Contact Dermatitis. 2016 Feb;74(2):94-101. doi: 10.1111/cod.12490. Epub 2015 Nov 5.

    PMID: 26537833BACKGROUND
  • Christiansen AG, Carstensen O, Sommerlund M, Clausen PA, Bonlokke JH, Schlunssen V, Isaksson M, Schmidt SAJ, Kolstad HA. Prevalence of skin sensitization and dermatitis among epoxy-exposed workers in the wind turbine industry. Br J Dermatol. 2022 Dec;187(6):988-996. doi: 10.1111/bjd.21830. Epub 2022 Sep 16.

    PMID: 35972390BACKGROUND
  • Ponten A, Carstensen O, Rasmussen K, Gruvberger B, Isaksson M, Bruze M. Epoxy-based production of wind turbine rotor blades: occupational contact allergies. Dermatitis. 2004 Mar;15(1):33-40. doi: 10.2310/6620.2004.20433.

    PMID: 15573646BACKGROUND

MeSH Terms

Conditions

Dermatitis

Interventions

Patch Tests

Condition Hierarchy (Ancestors)

Skin DiseasesSkin and Connective Tissue Diseases

Intervention Hierarchy (Ancestors)

Skin TestsImmunologic TestsClinical Laboratory TechniquesDiagnostic Techniques and ProceduresDiagnosisInvestigative TechniquesImmunologic Techniques

Study Officials

  • Vítor Pinheiro, MD

    AIBILI-CEC (AIBILI- Clinical Trials Centre)

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
CASE CONTROL
Time Perspective
CROSS SECTIONAL
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

May 26, 2023

First Posted

June 7, 2023

Study Start

March 8, 2024

Primary Completion

October 16, 2024

Study Completion

October 16, 2024

Last Updated

November 1, 2024

Record last verified: 2024-10

Locations