The Variable Ventilation Trial (Part A)

Trial statusNot yet recruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age21+
SponsorBrigham and Women's Hospital

About this trial

The goal of this clinical trial is to learn if a breathing machine (ventilator) method called "variable ventilation" can help protect the lungs of adult patients with acute respiratory distress syndrome (ARDS) who need help breathing through a ventilator. In variable ventilation, the size of each breath given by the machine changes slightly from breath to breath, instead of staying the same size in every breath. The study has two parts, A (safety and feasibility) and B (efficacy). This entry will cover the part A (safety study).

The main questions part A aims to answer are:

1. Is variable ventilation safe to use in adults with ARDS? 2. Is it feasible to deliver this method of ventilation to patients?

Researchers will compare variable ventilation to the standard breathing machine method used today to see if variable ventilation is safe and feasible.

Participants will be placed on an FDA approved ventilator that can deliver conventional mechanical ventilation and variable ventilation. Participants will:

* Have a period of stabilization on conventional ventilation, followed by 24 hours of variable ventilation, followed by 24 hours of conventional ventilation. * Be checked regularly for breathing, oxygen levels, lung function, and plasma biomarkers.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Patients ≥21 years old admitted to the Surgical, Trauma, Burn, Coronary or Medical ICUs with ARDS according to the Berlin criteria [50] and requiring mechanical ventilation will be eligible for inclusion.

Not more than 96 hours of mechanical ventilation before randomization

Anticipated need for at least 48 more hours of controlled mechanical ventilation

Intubated and mechanically ventilated for ARDS according to the Berlin criteria

Disqualifiers

Age less than 21 years

Pregnant or breastfeeding

Prisoner

Concurrent participation in another investigational drug study

Trial design

Design model

Sequential

Treatments tested in this trial

  • Variable Ventilation

    Device

    Strategy of mechanical ventilation based on varying tidal volume breath to breath to provide therapeutic benefits in patients with ARDS.

  • Conventional Ventilation

    Device

    Strategy of mechanical ventilation based on delivery of a constant size low tidal volume.

Treatment groups

20 Participants
are divided into 2 treatment groups
Group A: Variable VentilationExperimental treatment 1 intervention
Group B: Conventional VentilationPlacebo comparator 1 intervention

Trial outcomes

Primary outcomes

1

Safety assessed by the incidence of pre-specified AEs over the first 24 hours

Barotrauma

Time frame
Maximum of 24 hours of VV
2

Safety assessed by the incidence of pre-specified AEs over the first 24 hours

Worsening Hypoxemia

Time frame
Maximum of 24 hours of VV
3

Safety assessed by the incidence of pre-specified AEs over the first 24 hours

Worsening ventilation

Time frame
Maximum of 24 hours of VV
4

Safety assessed by the incidence of pre-specified AEs over the first 24 hours

New onset arrhythmia requiring cardioversion

Time frame
Maximum of 24 hours of VV

Secondary outcomes

1

Lung mechanics

Lung compliance, airways resistance, peak and plateau pressures

Time frame
Every 12 hours to maximum of 24 hours of VV
2

Gas exchange

SpO2, PaO2/FiO2 ratio, oxygenation index, dead space, and lung injury score.

Time frame
Every 12 hours to maximum of 24 hours of VV
3

Feasibility of VV implementation.

Qualitative feedback from Research and Clinical staff of the device and implementation in the ICU setting.

Time frame
Every 12 hours during 24 hours of VV

Other outcomes

Sponsors and contacts

Click on the lead sponsor to view all of their trials.

Brigham and Women's Hospital

Lead sponsor

Baystate Medical Center

Collaborator

Boston University

Collaborator

Oregon Health and Science University

Collaborator

University of Alabama at Birmingham

Collaborator

This trial is not recruiting at the moment. You can still explore other options: