The Duration of Antibiotic Therapy for Early (DATE) Ventilator Associated Pneumonia (VAP): 4 vs. 7 Days (DATE)

January 13, 2026 updated by: Jonathan Meizoso, University of Miami

Duration of Antibiotic Therapy for Early (DATE) Ventilator-Associated Pneumonia (VAP) Trial: A Surgical Infection Society Multicenter Randomized Clinical Trial of 4 vs. 7 Days of Definitive Antibiotic Therapy for Early VAP

The purpose of this study is to see if the amount of antibiotics given for ventilator-associated pneumonia (VAP) can be decreased in order to reduce the risk of adverse effects associated with antibiotics, while at the same time ensuring the participant's safety.

Study Overview

Status

Terminated

Study Type

Interventional

Enrollment (Actual)

27

Phase

  • Phase 4

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

    • Florida
      • Miami, Florida, United States, 33136
        • Jackson Memorial 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

Description

Inclusion Criteria:

  1. Surgical patient
  2. Early VAP, defined as VAP occurring within 2 - 7 days of intubation (via endotracheal or tracheostomy tube) (9). VAP will be defined according to local institutional protocol.
  3. Hospital length of stay (LOS) < 10 days at the time of VAP diagnosis.
  4. Patients are willing to provide informed consent or their Legally Authorized Representative (LAR) is willing to provide informed consent on their behalf when the patient is unable (i.e., cognitively impaired from sedation on a ventilator)

Exclusion Criteria:

  1. Age < 18 years
  2. Prior episode of VAP for the index admission
  3. VAP caused by any of the following pathogens:

    • Methicillin-resistant Staphylococcus aureus (MRSA)
    • Vancomycin-intermediate Staphylococcus aureus (VISA)
    • Pseudomonas aeruginosa
    • Vancomycin-resistant Enterococcus (VRE)
    • Acinetobacter baumanii
    • Stenotrophomonas maltophilia
    • Carbapenem-resistant Enterobacteriaceae (CRE)
    • Extended-spectrum beta lactamase-producing gram-negative bacilli
  4. Causative pathogen not sensitive to choice of initial empiric antibiotic
  5. Antibiotic therapy for > 5 of the last 10 days preceding VAP diagnosis
  6. Septic shock, defined as evidence of tissue hypoperfusion after adequate volume expansion, due to infection, and requiring > 1 vasopressor (17)
  7. Current or recent (within 30 days) use of immunosuppressive medications
  8. LOS > 72 hours at a transferring facility
  9. Pregnancy or lactation
  10. Legal arrest or incarceration
  11. Moribund state in which death is imminent
  12. ECMO (Extracorporeal membrane oxygenation)
  13. Extubation prior to randomization

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: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: 4 Days of Antibiotics Group
Participants will receive 4 days of antibiotic therapy administered as per the standard of care for the treatment of early ventilator associated pneumonia (VAP).
Antibiotics will be administered as per the standard of care orally via tablet
Active Comparator: 7 Days of Antibiotics Group
Participants will receive 7 days of antibiotic therapy administered as per the standard of care for the treatment of early ventilator associated pneumonia (VAP).
Antibiotics will be administered as per the standard of care orally via tablet

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Antibiotic Free Days
Time Frame: Up to 30 days
The number of days where participant did not require the use of antibiotics
Up to 30 days
Number of Participants With Reoccurring VAP
Time Frame: Up to 21 days
VAP recurrence will be reported as the number of participants with VAP occurring following completion of initial therapy.
Up to 21 days

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Hospital Length Of Stay
Time Frame: Up to 1 year
Number of days participant was admitted in the hospital
Up to 1 year
In-hospital Mortality
Time Frame: Up to 1 year
The number of participants that died while admitted in the hospital will be reported
Up to 1 year
Number of Days of Antibiotic Exposure
Time Frame: Up to 30 days
The number of days when the participant received antibiotics
Up to 30 days
Amount of Antibiotic Exposure
Time Frame: Up to 30 days
Antibiotic exposure will be expressed as the total number of antibiotic days, defined as one antibiotic agent administered for one day. For example, if a patient receives two different antibiotics for five days, this equals 10 antibiotic days. The "number of antibiotics used" refers to the number of different antibiotic agents administered per day, not the number of individual doses or pills.
Up to 30 days
Clinical Improvement as Measured by the Change in Clinical Pulmonary Infection Score (CPIS) From the First Study Day to the Last
Time Frame: From baseline to the last study day, up to 30 days
Clinical improvement will be measured comparing the difference from the first study day to the last study day using daily Clinical Pulmonary Infection Score (CPIS) clinical score while enrolled in the study. CPIS has a total score ranging from 0 to 12 where a score of less than 6 indicates that the lung infection is considered controlled. A negative change may suggest improvement while a positive difference may suggest a worsening.
From baseline to the last study day, up to 30 days
Number of Participants With VAP Relapse
Time Frame: Up to 30 days
VAP relapse will be reported as any recurrence of VAP caused by initial pathogen.
Up to 30 days
Ventilator-free Days
Time Frame: Up to 30 days
The average number of days participants did not use a ventilator
Up to 30 days
The Number of Participants With Empyema
Time Frame: Up to 30 days
The number of participants with empyema
Up to 30 days
The Number of Participants That Received a Tracheostomy
Time Frame: Up to 30 days
The number of participants that received a tracheostomy
Up to 30 days
The Number of Participants With Non-pulmonary Infections
Time Frame: Up to 30 days
The number of participants with Non-pulmonary infections
Up to 30 days
ICU-free Days
Time Frame: Up to 30 days
The average number of days participants were not in the ICU
Up to 30 days

Collaborators and Investigators

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

Investigators

  • Principal Investigator: Jonathan Meizoso, MD, MSPH, University of Miami

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 (Actual)

May 8, 2023

Primary Completion (Actual)

February 27, 2025

Study Completion (Actual)

February 27, 2025

Study Registration Dates

First Submitted

September 12, 2022

First Submitted That Met QC Criteria

September 16, 2022

First Posted (Actual)

September 19, 2022

Study Record Updates

Last Update Posted (Estimated)

January 16, 2026

Last Update Submitted That Met QC Criteria

January 13, 2026

Last Verified

January 1, 2026

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

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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