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NCT01249625 · ClinicalTrials.gov registry record · NA

The Respiratory Protection Effectiveness Clinical Trial

A NA study, sponsored by Johns Hopkins University.

Completed
Registry status
NA
Development phase
2,862
Enrollment target

NCT01249625: Completed NA study, sponsored by Johns Hopkins University.

NCT01249625 is a NA study that has completed, run by Johns Hopkins University. The registered enrollment target is 2,862 participants, above the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (104% higher). According to ClinicalTrials.gov, the official US trial registry.

View on ClinicalTrials.gov ↗

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The verdict

NCT01249625, a NA study, has completed, sponsored by Johns Hopkins University.

COMPLETED
Registry status
NA
Development phase
2,862 participants
Enrollment target

Study Summary

Despite widespread use of respiratory protective equipment in the U.S. healthcare workplace, there is very little clinical evidence that respirators prevent healthcare personnel (HCP) from airborne infectious diseases. Scientific investigation of this issue has been quite complicated, primarily because the use of respirators has become "the standard of care" for protection against airborne diseases in some instances, even without sufficient evidence to support their use. The key question remains: How well do respirators prevent airborne infectious diseases? The answer to this important question has important medical, public health, political and economic implications.

Primary Outcome

Number of influenza A and B events in healthcare practitioners wearing N95 respirators compared to medical masks.

Interventions

  • DEVICE N95 Respirator
  • DEVICE Medical/surgical mask

Trial Details

FieldValue
Enrollment Target 2,862 participants
Start Date 2010-12
Est. Completion 2018-03
Phase NA
Johns Hopkins University

1,448 total trials

What the finished NCT01249625 record still lists

NCT01249625 is an interventional study that assigns participants to a tested intervention. Its 2,862 participants enrollment target places it among the larger protocols in the corpus, above the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (104% higher).

The record links to 0 conditions, and to 2 interventions - of which N95 Respirator is the first listed.

NCT01249625 does not publish any study locations in the registry export this page uses.

Frequently Asked Questions

What is clinical trial NCT01249625 about?

NCT01249625 is a clinical study titled "The Respiratory Protection Effectiveness Clinical Trial". Despite widespread use of respiratory protective equipment in the U.S. healthcare workplace, there is very little clinical evidence that respirators prevent healthcare personnel (HCP) from airborne infectious diseases. Scientific investigation of this issue has been quite complicated, primarily beca...

What is the current status of trial NCT01249625?

This trial is currently completed. It is a NA study. The enrollment target is 2,862 participants. The study started on 2010-12. Estimated completion is 2018-03.

What interventions are being tested in trial NCT01249625?

The interventions under investigation include: N95 Respirator (DEVICE), Medical/surgical mask (DEVICE).

Who is sponsoring clinical trial NCT01249625?

This trial is sponsored by Johns Hopkins University, which has 1,448 total clinical trials registered on ClinicalTrials.gov.

How this trial's enrollment target compares

Where NCT01249625's enrollment target sits among peer trials

2,862 43rd of 2000 higher than 1,958 of 2,000 other NA trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other NA trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source ClinicalTrials.gov registry export · 2026-08-08

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Source: ClinicalTrials.gov NCT01249625, the US trial registry maintained by the National Library of Medicine. NCT01249625 (large enrollment · none site footprint · completed) retrieved and formatted by PlainTrial, see methodology.