Impact of Using Mini-Bronchoalveolar Lavage as a Diagnostic Test for Ventilator-Associated Pneumonia

October 16, 2012 updated by: University of California, San Francisco
The proposed study will evaluate adult patients admitted to the medical or surgical intensive care units (ICUs) at San Francisco General Hospital (SFGH). On admission, patients will be randomized in a 1:1 manner to the mini-bronchoalveolar lavage (BAL) quantitative culture arm in the setting of suspected ventilator-associated pneumonia (VAP) versus the tracheal aspirate culture arm, which is the current test available at SFGH.

Study Overview

Status

Completed

Intervention / Treatment

Detailed Description

Patients will be randomized to either Mini-Bal or tracheal aspirate then samples will be taken to the lab for culture. Comparative analysis will then be performed based upon lab results.

Study Type

Interventional

Enrollment (Actual)

37

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • California
      • San Francisco, California, United States, 94110
        • San Francisco General Hospital

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • All adult patients (> age 18) admitted to 5E, 5R, and 4E intensive care units and are on the ventilator for greater than 48 hours and expected to remain on the ventilator for awhile
  • Study procedures would be performed only in patients clinically suspected of having VAP.

Exclusion Criteria:

  • Severe respiratory distress at the time of suspected VAP defined by:

    • FiO2 ≥ 0.7
    • PEEP ≥ 12

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Diagnostic
  • Allocation: Randomized
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Minibal Arm
Using Mini bronchoalveolar lavage
Using catheter to obtain respiratory sample
Other Names:
  • MiniBal
No Intervention: Tracheal Aspirates
standard of care for ICU.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change in Antibiotic Usage or Exposure
Time Frame: It is theorized that patients randomized to the tracheal aspirate will receive an average of 15 days of antibiotics while patients randomized under the minibal arm will receive an average of 10 days of antibiotics
We expect that 100-110 adult patients will have clinically suspected VAP over a 2-year period. We assume that 50 patients with suspected VAP will be randomized to mini-BAl, and 50 patients will be randomized to tracheal aspirate. We expect that patients randomized to tracheal aspirate group will receive an average of approximately 14 total days of antibiotics over their ICU stay. This study will have >80% power to detect a difference of 4 days of antibiotics (i.e. average of 10 days in mini-BAL group) with a 7-day standard deviation in both groups (alpha error level 5%).
It is theorized that patients randomized to the tracheal aspirate will receive an average of 15 days of antibiotics while patients randomized under the minibal arm will receive an average of 10 days of antibiotics
Antibiotics Exposure Days
Time Frame: 15 days
We hypothesize that Mini-BAL quantitative culture in place of tracheal aspirate culture will reduce the total days of antibiotics exposure
15 days

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: Julin F Tang, M.D., M.S., University of California, San Francisco

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

May 1, 2006

Primary Completion (Actual)

December 1, 2008

Study Completion (Actual)

December 1, 2008

Study Registration Dates

First Submitted

April 27, 2006

First Submitted That Met QC Criteria

April 27, 2006

First Posted (Estimate)

April 27, 2006

Study Record Updates

Last Update Posted (Estimate)

November 16, 2012

Last Update Submitted That Met QC Criteria

October 16, 2012

Last Verified

October 1, 2012

More Information

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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