Actively Recruiting
Helmet Noninvasive Ventilation vs Continuous Positive Airway Pressure vs High-flow Nasal Oxygen for Acute Hypoxemic Respiratory Failure Treatment An Open-label Multicentre Randomized Trial
Led by Fondazione Policlinico Universitario Agostino Gemelli IRCCS · Updated on 2025-09-30
1200
Participants Needed
1
Research Sites
26 weeks
Total Duration
On this page
Sponsors
F
Fondazione Policlinico Universitario Agostino Gemelli IRCCS
Lead Sponsor
S
Societa Italiana Anestesia Analgesia Rianimazione e Terapia Intensiva
Collaborating Sponsor
AI-Summary
What this Trial Is About
Researchers are evaluating the best initial treatment for patients with acute moderate-to-severe hypoxemic respiratory failure. This study compares three methods of respiratory support: helmet noninvasive ventilation (NIV), helmet continuous positive airway pressure (CPAP), and high-flow nasal oxygen. The goal is to see which method reduces the need for endotracheal intubation in intensive care patients. The trial is open-label and randomized, involving multiple centers. Participants will be assigned to one of three groups. The helmet NIV group will receive continuous helmet pressure support ventilation for at least 16 hours per day during the first two days, with specific ventilator settings. The helmet CPAP group will receive continuous helmet CPAP for at least 16 hours per day, delivered through a high-flow generator with set air flow and pressure levels. The high-flow nasal oxygen group will receive flows starting at 50-60 liters per minute, with adjustments based on comfort and patient needs, and weaning considered only after 48 hours. During the study, researchers will monitor participants closely in the ICU, recording the rate of intubation over 28 days as the primary outcome. Secondary outcomes include days free from invasive mechanical ventilation at 28, 60, and 90 days, mortality rates in the ICU and hospital, ICU and hospital free days at 90 days, and the incidence of pneumonia, shock, and barotrauma. The total participation time varies, with follow-up assessments extending up to 90 days.
CONDITIONS
Brief Title
Helmet NIV vs. CPAP vs. High-flow Nasal Oxygen in Hypoxemic Respiratory Failure
Who Can Participate
Eligibility Criteria
You may qualify if you...
- Adults aged 18 years or older
- Acute respiratory failure with PaO2/FiO2 ratio of 200 or less
- PaCO2 level 45 mmHg or less
- No history of chronic respiratory failure
- No moderate to severe cardiac insufficiency (NYHA >2 or left ventricular ejection fraction <50%)
- Ability to provide informed consent
You will not qualify if you...
- Continuous use of NIV or CPAP for more than 24 hours before screening
- Pregnancy
- Asthma or chronic obstructive pulmonary disease exacerbation
- Hypercapnia with PaCO2 greater than 45 mmHg
- More than 2 organ failures including the lung
- Documented pneumothorax
- Cardiogenic pulmonary edema
- Hemodynamic instability or shock requiring vasoactive agents
- Metabolic acidosis with pH less than 7.30
- Chronic kidney failure requiring dialysis before ICU admission
- Chronic hypoxemic respiratory failure needing long-term oxygen therapy
- Altered neurological status requiring immediate intubation or causing uncooperativeness
- Urgent need for endotracheal intubation
- Do not intubate order
- Decision to withdraw life-sustaining therapy
- Thoracic or abdominal surgery within 7 days
- Conditions likely to require intubation for reasons other than respiratory failure
- Recent head surgery or anatomy preventing helmet or nasal oxygen application to face
AI-Screening
AI-Powered Screening
Complete this quick 3-step screening to check your eligibility
Your Study Journey
Duration - 2 to 4 weeks
Participants are screened for eligibility to participate in the trial.
1 visit (in-person)
Duration - Up to 28 days
Participants receive one of three types of noninvasive respiratory support for acute hypoxemic respiratory failure: helmet noninvasive ventilation, helmet continuous airway pressure, or high-flow nasal oxygen. Treatment is delivered continuously, with at least 16 hours per day of helmet ventilation or continuous CPAP in the first 2 days, or high-flow nasal oxygen with weaning considered after 48 hours.
Daily monitoring visits during treatment
Duration - Up to 90 days
Participants are monitored for outcomes including intubation rate, days free of invasive mechanical ventilation, mortality, and complications for up to 90 days after treatment starts.
Periodic follow-up visits or contacts up to 90 days
Trial Site Locations
Total: 1 location
1
Gemelli
Rome, Italy
Actively Recruiting
Research Team
D
Domenico Luca Grieco, MD
How is the study designed?
Study Type
INTERVENTIONAL
Masking
NONE
Allocation
RANDOMIZED
Model
PARALLEL
Primary Purpose
TREATMENT
Number of Arms
3
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