NCT07620691

Brief Summary

Lung health is negatively affected during wildfire season by increased smoke pollution. Wearing N95 masks protects lung health in the short-term. The purpose of our study is to assess whether wearing of N95 facemasks on days with moderate to high air pollution in people who go outside to golf on a regular basis (two or more times per week) for two months during the wildfire season projects lung health.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
40

participants targeted

Target at P25-P50 for not_applicable

Timeline
6mo left

Started May 2026

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Progress9%
May 2026Dec 2026

First Submitted

Initial submission to the registry

May 26, 2026

Completed
Same day until next milestone

Study Start

First participant enrolled

May 26, 2026

Completed
7 days until next milestone

First Posted

Study publicly available on registry

June 2, 2026

Completed
3 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 1, 2026

Expected
4 months until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2026

Last Updated

June 2, 2026

Status Verified

May 1, 2026

Enrollment Period

3 months

First QC Date

May 26, 2026

Last Update Submit

May 26, 2026

Conditions

Bronchial Asthma

Outcome Measures

Primary Outcomes (1)

  • Change in compliance with wearing of N95 masks (number of times divided by days with moderate or higher air pollution)

    compliance with wearing the N95 masks

    8 weeks

Secondary Outcomes (6)

  • Change in forced expiratory volume in one second (L)

    8 weeks

  • Change in forced vital capacity (mL)

    8 weeks

  • Change in forced expiratory flow at 25% to 75% of vital capacity (mL)

    8 weeks

  • Change in respiratory symptoms (score out of 12)

    8 weeks

  • Change in systolic blood pressure (mmHg)

    8 weeks

  • +1 more secondary outcomes

Study Arms (2)

N95 mask

EXPERIMENTAL

N95 masks will be worn outdoors when Air Quality Health Index indicates moderate risk or higher (4 or higher)

Device: N95 mask

No N95 mask

NO INTERVENTION

No N95 masks will be provided to participants

Interventions

N95 maskDEVICE

N95 mask to be worn outside when golfing when Air Quality Health Index reading indicates moderate risk or higher

N95 mask

Eligibility Criteria

Age18 Years+
Sexall(Gender-based eligibility)
Gender Eligibility DetailsAll genders are included
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Golf on a regular basis (two or more times per week)

You may not qualify if:

  • Smoker

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Saskatchewan

Saskatoon, SK - Saskatchewan, S7N 5B2, Canada

RECRUITING

MeSH Terms

Conditions

Asthma

Interventions

N95 Respirators

Condition Hierarchy (Ancestors)

Bronchial DiseasesRespiratory Tract DiseasesLung Diseases, ObstructiveLung DiseasesRespiratory HypersensitivityHypersensitivity, ImmediateHypersensitivityImmune System Diseases

Intervention Hierarchy (Ancestors)

Surgical AttireEquipment and Supplies, HospitalEquipment and SuppliesRespiratory Protective DevicesPersonal Protective EquipmentProtective DevicesSurgical EquipmentManufactured MaterialsTechnology, Industry, and Agriculture

Study Officials

  • Philip Chilibeck, PhD

    University of Saskatchewan

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Philip Chilibeck, PhD

CONTACT

3062303849phil.chilibeck@usask.ca

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Masking Details
Participants are blinded to the hypothesis of the study
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor

Study Record Dates

First Submitted

May 26, 2026

First Posted

June 2, 2026

Study Start

May 26, 2026

Primary Completion (Estimated)

September 1, 2026

Study Completion (Estimated)

December 31, 2026

Last Updated

June 2, 2026

Record last verified: 2026-05

Locations

CA(1)