Clinical trial No longer in our active list Interventional Ages 18 and up

Impact of firefighting training on health risks

Official title: Effect on Markers of Cardiovascular, Reproductive and Cancer Risk From Firefighting Activities - a Study Under Different Training Methods

Run by National Research Centre for the Working Environment, Denmark · NCT05753254 · Data updated 2026-05-14

This study is no longer in our active list. It may have stopped recruiting or finished. The details below are as of 2026-05-14 and are kept for reference. Check ClinicalTrials.gov for its current status, or see similar studies below.

This study tests how different firefighting training conditions affect the health risks related to heart health, reproductive health, and cancer for firefighters.

Quick facts

Study typeInterventional
Ages18 Years and up
SexAll
Enrollment35 (estimated)
SponsorNational Research Centre for the Working Environment, Denmark
Government
Locations2 sites (Copenhagen and 1 other locations)
Trial IDNCT05753254 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates for this study are male and female conscripts enrolled in a Rescue Specialist Educational course who are legally competent and meet specific health criteria.

Probably not a fit

Patients who are current smokers, pregnant, on prescribed medication, or have a BMI outside the specified range may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This study investigates the health effects of different firefighting training conditions on cardiovascular, reproductive, and cancer risk markers. It employs a crossover design where participants undergo training sessions under varying conditions: no fire, wood fire, and gas fire. The study aims to assess the individual contributions of stressors such as heat, smoke, and soot on health outcomes. Participants will be monitored for biomarkers related to cardiovascular health, reproductive health, and cancer risk during these training exercises.

Why it matters

Potential benefit: If successful, this study could lead to improved health and safety protocols for firefighters, reducing their risk of cardiovascular disease, infertility, and cancer.

How similar studies have gone: While there have been studies on occupational health risks among firefighters, this specific approach of assessing different training conditions is relatively novel.

Who can join: the full rules

Show full inclusion / exclusion criteria
The participants will be volunteers (both males and females) recruited among conscripts in training in a desirable involved group up to 35 individuals.

Inclusion Criteria:

* legally competent,
* conscript subjects following a Rescue Specialist Educational course

Exclusion Criteria:

* current smoking status,
* pregnancy,
* on prescribed medication,
* body mass index (BMI) bellow 19 or over 30,
* alcohol or drug abuse.

Where it's running

  • Maria Helena Guerra Andersen
    København Ø, Denmark
    Recruiting
  • The National Research Centre for the Working Environment
    Copenhagen, Denmark
    Not yet recruiting

Study contacts

  • Principal investigator: Maria Helena G Andersen, PhD — The National Research Centre for the Working Environment (NRCWE)
  • Study coordinator: Maria Helena G Andersen, PhD
  • Email: mga@nfa.dk
  • Phone: +45 2020 9222

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.