# 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** · NA · RECRUITING · sponsor: **François Lellouche** · enrollment: 10 (estimated)

## Conditions studied

- COPD Exacerbation
- Oxygen Toxicity
- Abdominal Obesity
- Surgery

## Interventions

- **OTHER:** Washout period
- **DEVICE:** NIV - FreeO2
- **DEVICE:** Nasal High flow Oxygen therapy - FreeO2
- **OTHER:** CPAP - Oxygen constant flow
- **OTHER:** CPAP - FreeO2

## Key facts

- **NCT ID:** NCT04136717
- **Lead sponsor:** François Lellouche
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** RECRUITING
- **Start date:** 2019-10-28
- **Primary completion:** 2027-07
- **Final completion:** 2028-06
- **Target enrollment:** 10 (ESTIMATED)
- **Last updated:** 2025-09-04


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04136717

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04136717, "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". Retrieved via AI Analytics 2026-07-16 from https://api.ai-analytics.org/clinical/NCT04136717. Licensed CC0.

---

*[Clinical trials dataset](/datasets/clinical-trials) · CC0 1.0*