About this trial
Multi-center, randomized, controlled, open-label Phase 2 feasibility trial. Subjects on mechanical ventilation (MV) for acute hypoxemic respiratory failure (AHRF) with lung injury (including subjects who meet criteria for acute respiratory distress syndrome (ARDS)) will be randomized 2:1 to diaphragm neurostimulation-assisted ventilation (DNAV) using the AeroNova System plus lung-protective ventilation (Treatment) vs. lung-protective ventilation alone (Control).
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Male or female, 18 years or older, and
Able to provide informed consent or have a legally authorized representative (LAR) / Substitute Decision Maker (SDM) who can provide consent, and
Have acute onset of new respiratory symptoms or dysfunction within the 2 weeks before onset of need for respiratory support, and
PaO2:FiO2 ratio ≤300 mm Hg on PEEP ≥5 cm H2O, or
Disqualifiers
Hypoxemia is primarily attributable to acute exacerbation of chronic obstructive pulmonary disease, status asthmaticus, cardiogenic pulmonary edema, or pulmonary embolism.
Underlying chronic parenchymal lung disease that may make recovery/extubation a challenge (e.g., COPD, pulmonary fibrosis).
Broncho-pleural fistula at the time of eligibility assessment.
Require extracorporeal membrane oxygenation.
Trial design
Parallel
Treatments tested in this trial
Phrenic Nerve Stimulation
DeviceDuring controlled MV when patients are not breathing, continuous diaphragm neurostimulation-assisted ventilation (DNAV) will be delivered in synchrony with each ventilator-delivered breath.
Treatment groups
Trial outcomes
Primary outcomes
Successful device insertion, mapping, and initiation of stimulation within 18 hours of meeting readiness-to-stimulate criteria
Stimulation delivered on >50% of ventilator-triggered breaths (ascertained from continuous recordings stored in the Console)
Rehabilitation sessions delivered at least once per day on >50% of days when the patient was breathing in assisted (patient-triggered) mechanical ventilation
Secondary outcomes
Unanticipated serious adverse device events (USADE) and incidence of device- or procedure-related SAEs in the Treatment group
Sponsors and contacts
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