NCT06819592

Brief Summary

This research is about whether treatment with a commonly used antibiotic can prevent infections in airway and lungs and improves the chance of surviving, if it is given soon after patients commence mechanical ventilation when they have been admitted to hospital with an acute severe brain injury. An acute severe brain injury can occur as a result of a stroke, a traumatic injury or due to lack of oxygen to the brain that happens as a result of a cardiac arrest. Patients who are unconscious after an acute severe brain injury often need assistance to breath adequately, and this assistance is given by a breathing tube, connected to a mechanical ventilator. This treatment is an emergency medical treatment. The breathing tube is inserted into the patients' airway by either their mouth or neck. For patients who need assistance with their breathing from a mechanical ventilator, infections in the airways and lungs, known as pneumonia, are a common complication. Everyone naturally has bacteria in their mouth, esophagus and stomach. Clinicians think that during the process of inserting the breathing tube, small amounts of these bacteria can be introduced into the airways and lung when people are unconscious following an acute severe brain injury, or during the process of placing the breathing tube into the airways. These bacteria are now in a place they aren't meant to be and can cause an infections in the airways and lungs known as pneumonia. The purpose of this research is to see if giving one dose of a common antibiotic can prevent patients developing pneumonia, which is associated with having a breathing tube inserted and being on a ventilator, improving the chance of recovery following the acute severe brain injury and ultimately improving the chance of surviving. When patients have a known infection, current guidelines are to treat them with antibiotics. Antibiotics work to kill the bacteria causing the infection. When a patient has an infection in their lungs, they often need to stay on the mechanical ventilator for longer. While current practice is to give patients with a proven infection in their airways and lungs (pneumonia) antibiotics, it is unknown if giving an antibiotic to patients to prevent these infections before they show signs of pneumonia may lead to better outcomes.

Trial Health

80
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
3,300

participants targeted

Target at P75+ for phase_3

Timeline
44mo left

Started Oct 2025

Typical duration for phase_3

Geographic Reach
2 countries

9 active sites

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress13%
Oct 2025Dec 2029

First Submitted

Initial submission to the registry

January 2, 2025

Completed
1 month until next milestone

First Posted

Study publicly available on registry

February 11, 2025

Completed
9 months until next milestone

Study Start

First participant enrolled

October 30, 2025

Completed
3.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 1, 2029

Expected
4 months until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2029

Last Updated

February 19, 2026

Status Verified

November 1, 2025

Enrollment Period

3.8 years

First QC Date

January 2, 2025

Last Update Submit

February 16, 2026

Conditions

Keywords

Acute Brain InjuryMechanical Ventilation

Outcome Measures

Primary Outcomes (1)

  • All cause mortality

    All-cause mortality at day 90 following randomisation. Mortality was chosen as the primary outcome, as it is a patient-important outcome, is not prone to ascertainment bias, and is supported by strong pre-trial data.

    90 days

Secondary Outcomes (1)

  • Functional outcome

    Measured 180 days post randomisation

Other Outcomes (16)

  • Functional outcome

    Measured 180 days post randomisation

  • Ventilator-free days to Day 28

    Measured during first 28 days after randomisation.

  • Patient reported Health-Related Quality of Life (HRQoL)

    Measured 180 days post randomisation

  • +13 more other outcomes

Study Arms (2)

Ceftriaxone injection

ACTIVE COMPARATOR

2 grams Ceftriaxone must be diluted in a minimum volume of 200 mL of 0.9% sodium chloride.

Drug: Ceftriaxone 2g diluted in >200ml 0.9%sodium chloride

Placebo

PLACEBO COMPARATOR

In form of a minimum volume of 200 mL of 0.9% sodium chloride.

Drug: Placebo comparator - no ceftriaxone

Interventions

2 grams of Ceftriaxone diluted in \>200ml of 0.9%sodium chloride are administered intravenously once following randomisation

Ceftriaxone injection

placebo: \>200ml 0.9% sodium chloride given as an intravenous infusion once after randomisation

Placebo

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • ≥ 18 years of age
  • Receiving invasive mechanical ventilation
  • The requirement for mechanical ventilation is because of an acute brain injury due to intracranial haemorrhage, ischaemic stroke, cerebral venous sinus thrombosis, subarachnoid haemorrhage, suspected hypoxic ischaemic encephalopathy post cardiac arrest, or traumatic brain injury.
  • Admitted to an ICU or is anticipated to be admitted to an ICU

You may not qualify if:

  • Endotracheal intubation was more than 12 hours ago
  • Hospital admission was more than 72 hours ago
  • Anticipated inability to deliver trial intervention within 90 minutes of randomisation
  • Documented use of antibiotic therapy in the week prior to hospitalisation
  • Currently receiving antibiotic therapy, or intention to prescribe antibiotic therapy, excluding cephazolin for peri-operative prophylaxis
  • Any contraindication to receiving ceftriaxone
  • Known or suspected pregnancy
  • Death within 90 days is deemed inevitable due to the current illness or intercurrent medical conditions
  • Previously enrolled in the PREVENT-NEURO trial.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (9)

Nepean Hospital

Kingswood, New South Wales, 2747, Australia

RECRUITING

St George Hospital

Kogarah, New South Wales, 2217, Australia

RECRUITING

The George Institute

Randwick, New South Wales, 2031, Australia

NOT YET RECRUITING

Royal North Shore Hospital

Sydney, New South Wales, 2000, Australia

RECRUITING

Royal Brisbane and Women's Hospital

Herston, Queensland, 4006, Australia

RECRUITING

Princess Alexandra Hospital

Woolloongabba, Queensland, 4102, Australia

RECRUITING

The Alfred Hospital

Melbourne, Victoria, Australia

NOT YET RECRUITING

Fiona Stanley Hospital

Perth, Western Australia, 6150, Australia

NOT YET RECRUITING

Wellington Hospital

Wellington, New Zealand

RECRUITING

MeSH Terms

Conditions

Intellectual DisabilityNervous System DiseasesBrain InjuriesRespiratory Aspiration

Interventions

CeftriaxoneSodium Chloride

Condition Hierarchy (Ancestors)

Neurobehavioral ManifestationsNeurologic ManifestationsSigns and SymptomsPathological Conditions, Signs and SymptomsNeurodevelopmental DisordersMental DisordersBrain DiseasesCentral Nervous System DiseasesCraniocerebral TraumaTrauma, Nervous SystemWounds and InjuriesRespiration DisordersRespiratory Tract DiseasesPathologic Processes

Intervention Hierarchy (Ancestors)

CefotaximeCephacetrileCephalosporinsbeta-LactamsLactamsAmidesOrganic ChemicalsThiazinesSulfur CompoundsHeterocyclic Compounds, 2-RingHeterocyclic Compounds, Fused-RingHeterocyclic CompoundsChloridesHydrochloric AcidChlorine CompoundsInorganic ChemicalsSodium Compounds

Study Officials

  • Anthony Delaney, Prof

    The George Institute

    STUDY CHAIR
  • Andrew Udy, Prof

    The Alfred

    PRINCIPAL INVESTIGATOR
  • Edward Litton, Prof

    Fiona Stanley Hospital

    PRINCIPAL INVESTIGATOR
  • Paul Young, Prof

    Wellington Hospital

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
interventional
Phase
phase 3
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Masking Details
All study staff will be blinded to the study intervention except the unblinded study staff who are undertaking randomisation and study unblinded drug preparation and delivery of Blinded study drug to bedside staff only. These designated unblinded staff are not involved in direct patient care of the participant or aprt of the research team.
Purpose
PREVENTION
Intervention Model
PARALLEL
Model Details: Multicentre, phase 3, randomised, double blind, parallel group, placebo-controlled two-side superiority trial.
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

January 2, 2025

First Posted

February 11, 2025

Study Start

October 30, 2025

Primary Completion (Estimated)

August 1, 2029

Study Completion (Estimated)

December 1, 2029

Last Updated

February 19, 2026

Record last verified: 2025-11

Data Sharing

IPD Sharing
Will not share

Locations