CClinicalTrials.gg
Status unknownNCT03893123Updated Mar 4, 2020

Prostate Cancer Risk in Firefighters

An observational study in Prostatic Cancer, sponsored by Oslo University Hospital. Status unknown at 1 site in Norway. Open to male participants. Per ClinicalTrials.gov, last updated 2020-03-04.

Sponsored by Oslo University Hospital · Observational

The sponsor has not verified this record recently (last verified Mar 2020), so the status shown — last known as Active, not recruiting — may be out of date.
Study type
Observational
Model
Cohort
Time perspective
Retrospective
Enrollment
4,500
Sex
Male
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Study summary

Firefighters have been shown to be at increased risk for various types of cancer, including prostate cancer. This study will try to explore possible reasons for this increase in risk. A study group at the Cancer Registry of Norway is creating a cohort of Norwegian firemen employed from 1960 onwards. A job exposure matrix (JEM) is also being constructed, examining different types of exposure to potentially cancer-inducing agents and activities, and how these have changed historically. Examples include exposure to fire-smoke, shiftwork, diesel exhaust and regular health check-ups. By linking the cohort with data from the Cancer Registry of Norway and the JEM the investigators can examine which exposure assessments, if any, are related to an increased risk of prostate cancer.

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Conditions studied

  • Prostatic Cancer

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03

In context

Prostatic Neoplasms

6,370 studies on the registry are indexed under Prostatic Neoplasms; 1,400 are open to participants now.

This study's enrollment of 4,500 is above the median of 200 across 1,181 observational studies indexed under Prostatic Neoplasms.

Browse Prostatic Neoplasms studies →

Lead sponsor

Oslo University Hospital is the lead sponsor of 810 studies on the registry; 148 are open to participants now.

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

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Who can participate

Ages eligible
Child (0–17), Adult (18–64), Older adult (65+)
Sexes eligible
Male
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

Norwegian males

Inclusion criteria

  • Work as firefighter as recorded by the participating fire stations

Exclusion criteria

Exclusion Criteria:

  • Any other occupation, including chimney sweepers
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Study design

Observational model
Cohort
Time perspective
Retrospective
Enrollment
4,500 participants (actual)
Patient registry
No

Groups and cohorts

  • Firefighters

    Other: Observational study, prostate cancer is outcome of interest

Interventions

  • OtherObservational study, prostate cancer is outcome of interest

    Observational study

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What researchers measure

Primary outcomes

  1. Incidence of prostate cancer

    As reported to the Cancer Registry of Norway

    Time frame: From January 1st 1960 until December 31st 2018

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Study locations

1 site
  • Cancer Registry of Norway
    Oslo, 0304, Norway
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References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Mar 4, 2020, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT03893123
Lead sponsor
Oslo University Hospital
Collaborators
Norwegian Institute of Public Health, Extrastiftelsen, National Institute of Occupational Health, Norwegian Confederation of Trade Unions, Fagforbundet, Gjensidige Foundation, Norwegian Cancer Society, Norwegian Firefighters Fight Cancer, Norwegian Labour Inspection Authority
Responsible party
Jarle Jakobsen (PhD-student, Norwegian Institute of Public Health) — Principal investigator
First posted
Mar 28, 2019
Start date
Jan 1, 2018
Primary completion
Feb 1, 2020
Completion
Dec 2021 (estimated)
Last update
Mar 4, 2020

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is status unknown, as verified in Mar 2020. You cannot join it, but the record below documents what was studied.

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