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Influence of FreeO2 on Percentage of Time Within Oxygen Saturation Target Using Noninvasive Ventilation (NIV) and Continuous Positive Airway Pressure (CPAP) for Patients Admitted for AECOPD or Bariatric Surgery

NCT04136717 · Status: RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 10

Last updated 2025-09-04

No results posted yet for this study

Summary

The main objective is to evaluate the FreeO2 device combined with noninvasive respiratory support technique for COPD patients and postoperative bariatric surgery patients.

The main hypothesis is that FreeO2 device for oxygen therapy associated with NIV or nasal high flow oxygen therapy (NHFOT) allows to reach better oxygenation and avoid hypoxemia and hyperoxia.

Conditions

  • COPD Exacerbation
  • Oxygen Toxicity
  • Abdominal Obesity
  • Surgery

Interventions

OTHER

Washout period

During this period the patients will breath spontaneously oxygen titrated using the FreeO2 device with a SpO2 target set at 90%. The period duration is 30 minutes.

DEVICE

NIV - FreeO2

During this period the patients will receive NIV using FreeO2 device for oxygen titration with a SpO2 target set at 90%. Initially, the inspiratory pressure will be set to obtain a tidal volume between 6 to 8 mL/Kg of predictive body weight and positive end-expiratory end pressure (PEEP) at 5 centimeters of water (cmH2O). After NIV initiation, the parameters can be adjusted to improve patient comfort. The period duration is 30 minutes.

DEVICE

Nasal High flow Oxygen therapy - FreeO2

During this period the patients will receive NHFOT using the FreeO2 device for oxygen titration with a SpO2 target set at 90%. The high flow device will be set at 30 lpm.The period duration is 30 minutes.

OTHER

CPAP - Oxygen constant flow

During this period, the patients will have their own CPAP with oxygen adjusted by hospital staff according to hospital protocol. The period duration is 15 minutes.

OTHER

CPAP - FreeO2

During this period, the patients will have their own CPAP with oxygen adjusted using the FreeO2 device. SpO2 target will be set at 90% The period duration is 60 minutes.

Sponsors & Collaborators

  • François Lellouche

    lead OTHER

Study Design

Allocation
NON_RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
CROSSOVER

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2019-10-28
Primary Completion
2027-07-31
Completion
2028-06-30

Countries

  • Canada

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT04136717 on ClinicalTrials.gov