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TerminatedNCT04733677Updated Mar 30, 2023

User Experience of the OSR M-1

An observational study in Covid19, sponsored by Wake Forest University Health Sciences. Terminated at 1 site in United States. Per ClinicalTrials.gov, last updated 2023-03-30.

Sponsored by Wake Forest University Health Sciences · Observational

Why this study was terminated
NIOSH certification became impossible, so decision was made to terminate
Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
21
Sex
All
01

Study summary

The purpose of this observational study is to verify the user acceptance of the Open Standard Respirator-Model 1 (OSR-M1) by clinicians through pre-trial survey and quantitative fit-testing and post-trial feedback surveys. This study will help to guide further design modifications and clarify quantities of employee populations that may benefit from elastomeric respirator use for the deployment of OSR M1 Air Purifying Respirators (APRs) in the Wake Health network.

Read the detailed description

The study team hypothesizes that the OSR M-1 APR with National Institute for Occupational Safety and Health classification 99% Airborne Particle Filtration (N99) will have increased fit and seal as well as user comfort and acceptance over disposable National Institute for Occupational Safety and Health classification 95% Airborne Particle Filtration (N95) filter facepiece respirators (FFR). The study team is proposing to assess the acceptance and functional usability of the OSR-M1 in Wake Forest Baptist Health System as a N95 disposable FFR alternative for improved protection and economy.

  1. Assess the effectiveness and causation of successful/unsuccessful fit testing of the OSR M1 APR by measuring anthropometry of facial features and performing quantitative fit testing of clinicians.
  2. Determine usability, initial and long-term acceptance of the OSR M1 APR relative to standard issue disposable FFRs through user survey and assessment.
02

Conditions studied

  • Covid19

Keywords

  • COVID
  • coronavirus
  • respirator
  • mask
  • N99
03

In context

COVID-19

7,774 studies on the registry are indexed under COVID-19; 482 are open to participants now.

This study's enrollment of 21 is below the median of 260 across 3,188 observational studies indexed under COVID-19.

Browse COVID-19 studies →

Lead sponsor

Wake Forest University Health Sciences is the lead sponsor of 1,345 studies on the registry; 198 are open to participants now.

Of its 328 completed or terminated interventional studies of FDA-regulated products, 249 (76%) have results posted.

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

04

Who can participate

Ages eligible
Child (0–17), Adult (18–64), Older adult (65+)
Sexes eligible
All
Sampling method
Non-probability sample

Study population

Clinical staff who are issued and routinely wear N95 FFR may be screened.

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Clinical staff who are issued and routinely wear N95 FFR or equivalent APR's are eligible.

Exclusion criteria

Exclusion Criteria:

  • Participants unable to pass the fit testing will be excluded from the study.
  • Anyone with a contraindication to wearing an N95 FFR (I.e. pregnancy, underlying medical conditions) will be excluded from the study.
05

Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
21 participants (actual)
Patient registry
No

Groups and cohorts

  • OSR M-1 N95

    All subjects will be fitted with an OSR M1 N95 mask

06

What researchers measure

Primary outcomes

  1. Percentage of Successful Fits

    Percentage of subjects that pass fit-factor testing \[0%-100%\]

    Time frame: Day 1

  2. Quality of Fit Score

    Scores can range from 0 to 10000 with a higher score denoting a better fit. A score of 100 qualifies as a successful OSHA half-mask respirator fit test.

    Time frame: Day 1

  3. Percentage of Participants that Fit in a Small Size Mask

    percentage \[0%-100%\]

    Time frame: Day 1

  4. Percentage of Participants that fit in a Medium Size Mask

    percentage \[0%-100%\]

    Time frame: Day 1

  5. Percentage of Participants that fit in a Large Size Mask

    percentage \[0%-100%\]

    Time frame: Day 1

  6. User Acceptance Percentage

    Percentage of participants that prefer the experimental device over currently used device \[0-100%\]

    Time frame: Day 10

Secondary outcomes

  1. Percentage of Impression Change

    Changes in impression of the device (pre-trial vs. post-trial) - percentage of positive or negative change \[-100% - +100%\]

    Time frame: Baseline through Day 10

07

Study locations

1 site
  • Wake Forest Baptist Health
    Winston-Salem, North Carolina 27157, United States
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Mar 30, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04733677
Responsible party
Sponsor
First posted
Feb 2, 2021
Start date
Mar 19, 2021
Primary completion
Nov 15, 2022
Completion
Nov 15, 2022
Last update
Mar 30, 2023

Study contacts

Philip J Brown, PhD
principal investigator · Wake Forest University Health Sciences

Oversight

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

Not currently enrolling

This study is terminated, as verified in Mar 2023. You cannot join it, but the record below documents what was studied.

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