Completed NA INTERVENTIONAL 2-arm NCT00756574

Randomized Control Trial to Study the Efficacy of the Surgical Mask Versus the N95 Respirator to Prevent Influenza

A Randomized Control Trial of Surgical Masks vs N95 Respirators to Prevent Influenza in Health Care Workers

Sponsor: Health Canada

Conditions Influenza

Updated 7 times since 2017 Last updated: Oct 25, 2018 Started: Oct 31, 2008 Primary completion: Apr 30, 2009 Completion: May 31, 2009

This information is for research purposes only and is not medical advice. Consult a healthcare provider before making any medical decision.

A NA clinical study on Influenza, this trial is completed. The trial is conducted by Health Canada and has accumulated 7 data snapshots since 2008. Infectious disease trials contribute critical data for public health response and treatment development.

Status Flow

Change History

7 versions recorded

Sep 2024 — Present [monthly]

Completed NA
Jul 2024 — Sep 2024 [monthly]

Completed NA
Apr 2022 — Jul 2024 [monthly]

Completed NA
Jan 2021 — Apr 2022 [monthly]

Completed NA
Nov 2018 — Jan 2021 [monthly]

Completed NA

▶ Show 2 earlier versions

Jun 2018 — Nov 2018 [monthly]

Completed NA
Jan 2017 — Jun 2018 [monthly]

Completed NA

First recorded

Oct 2008

Trial started

Per CT.gov start date — pre-dates our first snapshot

Eligibility Summary

No eligibility information available.

Contact Information

Sponsor contact:

Health Canada
McMaster University

Data source: McMaster University

For direct contact, visit the study record on ClinicalTrials.gov .

Study Locations

• Hamilton, Canada