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OpenTrials
Completed

NCT Number: NCT05169723

Respiratory Emissions in Healthy Participants

This is an randomised cross over trial in healthy participants measuring respiratory emissions during different respiratory activities.

Completed

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Key information

Conditions

Healthy

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Fisher and Paykel Healthcare

Auckland, 2013, New Zealand

Who can participate

Healthy volunteers accepted: Yes

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

Inclusion criteria

  • Adults, over the age of 18 and able to give informed consent
  • Symptom free from any respiratory illness in the last 48 hours

Exclusion criteria

  • Pregnant (where the participant feels that their pregnancy will make participation uncomfortable)
  • Inability to give consent
  • Current respiratory disease. Participants with well controlled asthma will be included (defined as asthma that the participant self-rates their asthma as being under control and that does not limit exercise, work)

Treatment and study plan

Exertional respiratory activities

Behavioral

participants will perform a series of exertional respiratory activities

Primary outcomes

  1. Count of total number of respiratory particles emitted during respiratory activities in the range of 0.3 to 25 microns

    Time frame: Emission of particles will be collected and analysed for 2 minutes during each experimental condition

    Particles emitted will be counted using two different optical particle counters

Sponsors and collaborators

Lead sponsor

Fisher and Paykel Healthcare

Industry

Registry information

Important dates

Study start
2022
Primary completion
2023
Study completion
2025
First posted
Dec 27, 2021
Registry last updated
Jan 10, 2025

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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