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Completed

NCT Number: NCT05507944

FeNO Hairdressers Pilot

A 5-day cohort diurnal FeNO study of exposed and unexposed to airway irritants during hair treatments and commuting.

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Key information

Conditions

Occupational Exposure Environmental Exposure

Age range

18 year and older

Sex eligibility

All sexes

Study type

Observational

Primary location

Oslo University Hospital

Oslo, 0139, Norway

About this study

The project aims to increase the knowledge of daily variations in FeNO with emphasis on exposure of airway irritants during hairdressing treatments in an occupational setting and commuting. Daily measurements of FeNO before and after workplace exposure in an exposed and an unexposed cohort during a workweek (Monday to Saturday) will indicate patterns of proinflammatory responses in a dose-dependent manner. These may or may not be indicative of an increased risk for airway related disease. Results may be used for further studies of occupational hygiene, airway related disease and identification of endogenous volatile organic compounds during proinflammatory responses.

Who can participate

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • have given informed consent.
  • employed as hairdressers or at Oslo University Hospital as healthcare workers.
  • scheduled work for at least 3 hours daily for 5 days in the study week.

Exclusion criteria

  • lung disease.
  • active smoker.

Treatment and study plan

FeNO measurement

Diagnostic Test

Diurnal measurements before work and at 3 hours after work start.

Primary outcomes

  1. Daily FeNO (ppb measured by Niox Vero) increase after occupational exposure.

    Time frame: 1 day.

    At start of work and after 3 hours. Hardressers vs. Health care workers.

  2. Daily FeNO (ppb measured by Niox Vero) increase after enviromental exposure during commuting.

    Time frame: 1 day.

    At start of work and after 3 hours. Subgrouped after way of commuting.

  3. Diurnal FeNO (ppb measured by Niox Vero) variations during a work week after occupational exposure.

    Time frame: 6 days

    At start of work and after 3 hours. Hardressers vs. Health care workers.

  4. Diurnal FeNO (ppb measured by Niox Vero) variations during a work week after environmental exposure during commuting.

    Time frame: 6 days

    At start of work and after 3 hours. Subgrouped after way of commuting.

Sponsors and collaborators

Lead sponsor

Oslo University Hospital

Other

Registry information

Official study title

Fraction of Exhaled Nitric Oxide (FeNO) in an Occupational Cohort of Hairdressers

Important dates

Study start
2022
Primary completion
2022
Study completion
2022
First posted
Aug 19, 2022
Registry last updated
Dec 6, 2022

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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