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Observational Study of Exposure to Environmental Toxicants Among Firefighters

Evaluate the Exposure to Toxicants Emitted During a Structural Fire Assessed by Urinary and Buccal Cell Biomarkers Found in Firefighters.

Who can join

Ages 18 and older · All sexes · Healthy volunteers welcome

Inclusion Criteria:

* Firefighter (career or volunteer)
* Over 18 years of age
* Able to provide written voluntary consent

Exclusion Criteria:

* Unwilling to provide a pre and post-exposure urine sample
* Current cancer diagnosis
* Tobacco use within the last 1 year (verified by urinary TNEs)

About the study

Observational, within subject study design with 1 pre and 2 post-fire exposure biomarker samples collected to assess exposure to toxicants from combustion emissions related to fighting a structural fire.

What is being tested

• Sample collection (other)

Sponsor: Masonic Cancer Center, University of Minnesota · Participants: 60 · Started: Feb 1, 2020

Contact the study team

• Joni Jensen · Phone: 612-624-5178

Official record on ClinicalTrials.gov — NCT05643014

Locations in the U.S.

From ClinicalTrials.gov, data retrieved Sep 30, 2026. Each study sets its own eligibility; the study team decides who can join.