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CompletedNCT03382548REGARD_VAPUpdated Jan 18, 2024

Defining Antibiotic Treatment Duration for Ventilator - Associated Lung Infection

A Phase 3 interventional study of Reducing Antibiotics treatment duration and Standard Antibiotics treatment duration in Ventilator Associated Pneumonia and Pneumonia, Bacterial, sponsored by University of Oxford. Completed at 7 sites in 3 countries. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2024-01-18.

Sponsored by University of Oxford · Phase 3, Interventional, and Treatment

Phase
Phase 3
Study type
Interventional
Enrollment
460
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-12

Among 14 studies in Pneumonia, Ventilator-Associated with a site in Thailand — 1 open to participants now, 1 under way, none of them phase 3. Pneumonia, Ventilator-Associated · Thailand.

Enrollment
2nd of 14
460 · median 106
Started
2018
with 1 other
Phase 3
5 of 14
none open now
Registered
12th of 14
by date
Lead sponsor
1 of 14
University of Oxford

Among the 14 studies in Pneumonia, Ventilator-Associated with a site in Thailand, this one is the 2nd largest by enrollment, is one of 2 that started in 2018, is one of 5 in phase 3, and was the 12th registered.

Pneumonia, Ventilator-Associated

420 studies on the registry are indexed under Pneumonia, Ventilator-Associated; 83 are open to participants now.

Browse Pneumonia, Ventilator-Associated studies →

Open to participants now

1 of the 14 studies in Pneumonia, Ventilator-Associated with a site in Thailand is open now. Recruiting first, the newest first:

A study can be open while its sites in Thailand have not opened yet or have stopped. Only those recruiting at a site in Thailand →

Who these studies take

Of the 47 Pneumonia, Ventilator-Associated studies recruiting now, 36 (77%) set no upper age limit and 6 (13%) stop at 75 or younger; 6 take children under 18; 4 take healthy volunteers.

This study: 18 Years and older · all sexes · no healthy volunteers.

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Watch this landscapeDownload CSVNarrow it in search →With an account: a weekly mail of what changed among 14 studies in Pneumonia, Ventilator-Associated with a site in Thailand, or all of them as a file.
02

Study summary

Intensive care units (ICUs), with high antibiotic consumption, are epicentres of antimicrobial resistance (AMR). Ventilator associated pneumonia (VAP) is the commonest hospital-acquired infection (HAI) in ICUs and is associated with a high morbidity and mortality in these vulnerable patients despite antibiotic therapy. No well-designed clinical trials studying antibiotic duration for VAP caused by predominantly non-fermenting Gram-negative bacteria have been conducted to date. Shortening antibiotic duration has the potential to improve individual patient outcomes and indirectly benefit other patients by reducing the selection pressure for multidrug resistant (MDR) bacteria within the ICU.

The study aims to demonstrate clinical non-inferiority-superiority of a short duration of antibiotics (up to 7 days) versus prolonged antibiotic therapy (as per physician preference) in adults with VAP in Asia. Patients who have been ventilated for more than 48 hours will be screened daily for signs and symptoms of VAP according to the US Centers for Disease Control and Prevention VAP criteria. Recruited patients will be reviewed daily for clinical signs of stability including temperature \<38°C for 48 hours, systolic blood pressure >90mmHg without inotropes. Recruited patients will be randomised once they fulfill these clinical criteria of stability. In the intervention arm, antibiotics should be stopped within 7 days once the above criteria are fulfilled. In the control arm, antibiotics should be at least 7 days with the exact duration decided by the managing physicians.

The primary outcome of the study is a combined endpoint of mortality and VAP recurrence at day 60 of recruitment. The study hypothesis is that a shorter duration of treatment for VAP (7 days or less depending on clinical response) is not only noninferior, but may also be superior to a longer duration (8 days or more). The secondary outcomes of the study include clinical parameters such as rate of acquisition of MDRO hospital-acquired infections, duration of ventilation and hospitalization and days of antibiotics use. The study team will also characterise the microbiome changes in study participants according to the type and duration of antibiotics. MDROs collected will undergo whole genome sequencing for transmission dynamics study. The study is a multinational multicenter study involving hospitals in Asia.

Funder: The project will beis partly joinly funded by Medical Research Council/ Department for International Development (MRC/DfID) and Singapore National Medical Research Council (NMRC/CTG).

Grant Ref: MR/K006924/1 and MOH-000470 (MOH-CTGIIT18may-0003)

Conclusions This is a randomised controlled hierarchical non-inferiority-superiority trial being conducted in ICUs across Nepal, Thailand and Singapore. The primary outcome is a composite endpoint of death and pneumonia recurrence at day 60. Secondary outcomes include ventilator-associated events, multidrug-resistant organism infection or colonisation, total duration of antibiotic exposure, mechanical ventilation and hospitalisation. Adult patients who satisfy the US Centers for Disease Control and Prevention National Healthcare Safety Network VAP diagnostic criteria are enrolled. Participants are assessed daily until fever subsides for >48 hours and have stable blood pressure, then randomised to a short duration treatment strategy or a standard-of-care duration arm. Antibiotics may be stopped as early as day 3 if respiratory cultures are negative, and day 5 if respiratory cultures are positive in the short-course arm. Participants receiving standard-of-care will receive antibiotics for at least 8 days. Study participants are followed for 60 days after enrolment. An estimated 460 patients will be required to achieve 80% power to determine non-inferiority with a margin of 12%. All outcomes are compared by absolute risk differences. The conclusion of non-inferiority, and subsequently superiority, will be based on unadjusted and adjusted analyses in both the intention-to-treat and per-protocol populations.

Publication of this study

https://pubmed.ncbi.nlm.nih.gov/33986070/

03

Conditions studied

  • Ventilator Associated Pneumonia
  • Pneumonia, Bacterial

Keywords

  • Ventilator Associated Pneumonia
  • Pneumonia
04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

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

  1. Patients 18 years and older
  2. Invasive mechanical ventilation ≥ 48 hours
  3. Satisfy the US Centers for Disease Control and Prevention National Healthcare Safety Network VAP diagnostic criteria

    • At least one of the following:

      1. temperature > 38 °C
      2. white blood cell count ≥ 12,000 cells/mm3 or ≤ 4,000 cells/mm3
      3. altered mental status with no other causes in >70 year-olds; AND
    • Two or more chest imaging tests demonstrating at least one of the following:

      1. new and progressive OR progressive and persistent infiltrate
      2. new and persistent OR progressive and persistent consolidation
      3. new and persistent OR progressive and persistent cavitation, AND
    • At least two of the following:

      1. new onset of purulent sputum, or change in character of sputum, or increased respiratory secretions, or increased in suctioning requirements
      2. new onset or worsening tachypnea or dyspnea
      3. rales or bronchial breath sounds
      4. worsening gas exchange defined by oxygen desaturations (e.g., PaO2/FiO2 \<240), increased oxygen requirements or increased ventilation demand

Exclusion criteria

Exclusion Criteria:

  1. Poor likelihood of survival as defined by a Sepsis-related Organ Failure Assessment score (SOFA score) of >11 points
  2. patients ( with CD4 \<200 cells/mm3, > 0.5 mg/kg per day for > 30 days, received chemotherapy in the past 3 months, solid organ or hematopoietic cell transplant)
  3. Patients receiving antibiotic therapy for any other defined extra-pulmonary infections that warrant a duration of antibiotics longer than 7 days, or complications of pneumonia such as lung abscess or empyema, that warrant a duration of antibiotics longer than 7 days (excluding anti-tuberculosis treatment, antifungal medications, antibiotics meant for chronic suppression of chronic infections or chronic obstructive lung disease)
  4. Patients who have been treated for VAP for more than 7 days from screening
  5. Vulnerable population including prisoners and refugees
Terms in these criteria, in plain language(3)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Immunosuppression

A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.

Read whether the line is about a condition or about medicines, and which medicines and doses it means.

HIV

The human immunodeficiency virus, which weakens the immune system.

Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.

Corticosteroids (steroids)

Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.

Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.

05

Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Investigator)
Enrollment
460 participants (actual)

Study arms

  • Active comparator
    Short antibiotic treatment duration for VAP (7 days or less)

    Drug: Reducing Antibiotics treatment duration

  • Active comparator
    Long antibiotic treatment duration for VAP ( 8 days or more)

    Drug: Standard Antibiotics treatment duration

Interventions

  • DrugReducing Antibiotics treatment duration

    Antibiotics should be stopped from day 3 to 7 if respiratory cultures are negative and the patients fulfill a set of stringent clinical criteria signifying cardiopulmonary stability for 48 hours. If the respiratory cultures are positive, patients who fulfill the same set of clinical criteria should have their antibiotics stopped from day 5 to 7.

  • DrugStandard Antibiotics treatment duration

    Participants in the control (long duration) arm will receive standard care, which is antibiotic treatment for at least 8 days with the exact duration decided by the primary physician.

06

What researchers measure

Primary outcomes

  1. Proportion of patients who suffered either death or pneumonia recurrence within 60(±5) days of enrolment

    Time frame: 60 days

Secondary outcomes

  1. Proportion of patients who suffered ventilator-associated events within 60(±5) days of enrolment

    Time frame: 60 days

  2. Duration of mechanical ventilation

    Time frame: 60 days

  3. Duration of hospitalization

    Time frame: 60 days

  4. Proportion of patients who acquired multidrug resistant infection or colonisation within 60(±5) days of enrolment

    Time frame: 60 days

  5. Number of days of antibiotics during hospitalization

    Time frame: From 3 months before to 60 days after enrolment

  6. Number and types of extrapulmonary infections during hospitalisation (determined from cultures taken from sterile sites)

    Time frame: 60 days

  7. Characteristics of microbiota in terms of shifts in functional and metabolic capacity by comparing alpha and beta diversity metrics between the groups of patients

    Time frame: 3 years

  8. Relative abundance of the genera in the microbiota between the groups of patients

    Time frame: 3 years

  9. Route of transmission of MDR Gram-negatives in ICUs by comparing genomic sequencing data

    Time frame: 3 years

  10. Quality Adjusted Life Years (QALY) loss

    Mathematical modeling of antibiotic utilisation and sequencing data to predict outcomes

    Time frame: 3 years

  11. Financial costs

    Mathematical modeling of antibiotic utilisation and sequencing data to predict outcomes

    Time frame: 3 years

07

Study locations

7 sites
  • Civil Hospital
    Kathmandu, Nepal
  • Patan Academy of Health Science, Patan Hospital, Kathmandu
    Patan, Nepal
  • National University Hospital, Singapore
    Singapore, Singapore
  • Tan Tock Seng Hospital
    Singapore, Singapore
  • Khon Kaen Hospital
    Khon Kaen, Thailand
  • Srinagarind Hospital
    Khon Kaen, Thailand
  • Sunpasitthiprasong Hospital
    Ubon Ratchathani, Thailand
08

References and documents

Publications

  • Mo Y, West TE, MacLaren G, Booraphun S, Li AY, Kayastha G, Lau YH, Chew YT, Chetchotisakd P, Tambyah PA, Limmathurotsakul D, Cooper B. Reducing antibiotic treatment duration for ventilator-associated pneumonia (REGARD-VAP): a trial protocol for a randomised clinical trial. BMJ Open. 2021 May 13;11(5):e050105. doi: 10.1136/bmjopen-2021-050105. PubMed 33986070 ↗

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

Individual participant data

Plan to share: Yes — The clinical and laboratory data that are stored in our database may be shared with other researchers in the future. However, data will be anonymised and the researchers will not know your identity.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Feb 2018 to primary completion in Jan 2023, 59 months.

Of 16 phase 3 interventional studies under Pneumonia, Ventilator-Associated, half reached primary completion within 43 months of starting (the median), counting those still running; a quarter within 26 and three quarters within 59. This study's 59 months is above that.

How these figures are worked out, and which studies are left out of them.

Registered
Dec 8, 2017
First posted
Dec 26, 2017
StartActual
Feb 21, 2018
Primary completionActual
Jan 23, 2023
CompletionActual
Mar 22, 2023
Last update
Jan 18, 2024
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Jan 18, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03382548
Collaborators
Medical Research Council, Department for International Development, United Kingdom, Mahidol Oxford Tropical Medicine Research Unit
Responsible party
Sponsor
First posted
Dec 26, 2017
Start date
Feb 21, 2018
Primary completion
Jan 23, 2023
Completion
Mar 22, 2023
Last update
Jan 18, 2024

Oversight

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

Not currently enrolling

This study is completed, as verified in Jan 2024. You cannot join it, but the record below documents what was studied.

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