Clinical trial NCT05891743: Prevalence of Skin Sensitization and Dermatitis Among Epoxy-exposed Workers in the Wind Turbine Industry.
Official title: Prevalence of Skin Sensitization and Dermatitis Among Epoxy-exposed Workers in the Wind Turbine Industry
Study type: OBSERVATIONAL
Overall status: COMPLETED
Conditions: Dermatitis
Lead sponsor: Siemens Gamesa Renewable Energy Blades, S.A.
Sponsor class: INDUSTRY
Collaborators: name: Association for Innovation and Biomedical Research on Light and Image
First posted: 2023-06-07
Enrollment: 126
Sex: ALL
Minimum age (years): 18
Maximum age (years): 70
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: yes
Observational model: CASE_CONTROL
Time perspective: CROSS_SECTIONAL
Sampling method: NON_PROBABILITY_SAMPLE
Study population: Workers from the wind turbine industry

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.

Detailed description: Epoxy resin systems are widely used materials in various industries due to their high mechanical, chemical, and thermal resistance. These systems are commonly employed as protective coatings, adhesives, and paints, as well as in the manufacturing of composites in the plastics industry. Epoxy components are well-known sensitizers of the skin. A high prevalence of skin sensitization and dermatitis have been reported among workers exposed to epoxy components. It is recommended to use comprehensive protective equipment when handling epoxy components. In the wind turbine industry, tasks involving epoxy handling, such as lamination and filling procedures, are frequently performed. Recent study have shown a sensitization prevalence of 8.9% among workers performing these tasks, while a previous study reported a high sensitization rate of 10.5% to epoxy resins. Despite efforts to find alternatives to epoxy resin systems and improve protective measures, the use of epoxy has increased, and some countries have implemented more stringent regulations, such as Denmark. In Portugal, there are currently no specific regulations regarding epoxy handling, and no certification is required for working with epoxy. Siemens Gamesa Renewable Energy, in Portugal, faces many skin problems among production workers, however numbers are unknown. Therefore, the main purpose of the study is to evaluate the prevalence of skin sensitization and dermatitis among epoxy-exposed workers in the wind Turbine Industry.

Eligibility criteria: Inclusion Criteria:

* Workers from the wind turbine industry

Exclusion Criteria:

* Pregnant females
* Workers previously diagnosed with epoxy resin sensitization

Primary outcomes:
measure: Prevalence of skin sensitization.
timeFrame: 2-3 days
Secondary outcomes:
Other outcomes:
Locations:
city: Aveiro
country: Portugal
facility: Siemens Gamesa Renewable Energy (SGRE)
state: Soza
Study officials:
affiliation: AIBILI-CEC (AIBILI- Clinical Trials Centre)
name: Vítor Pinheiro, MD
role: PRINCIPAL_INVESTIGATOR
References:
citation: 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.
citation: 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.
citation: 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.
citation: 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.
citation: 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.