About HiFlo

About HiFlo COPD Study

myAirvo 3 (High Flow Nasal Therapy; HFNT) for COPD patients in the home – a multi-center randomized controlled trial​

myAirvo 3 (High Flow Nasal Therapy; HFNT) for COPD Patients in the Home – a Multi-Center Randomized Controlled Trial

myAirvo 3 is a High Flow Nasal Therapy (HFNT) being offered to COPD patients via a clinical trial. The myAirvo 3 device is a humidifier with integrated flow generator that delivers warmed and humidified respiratory gases to the patient. Researchers are evaluating whether the device increases the time to when a patient experiences a COPD flareup, if it reduces flareup frequency, reduces hospitalization, improves quality of life, as well as other factors.

This is a parallel-group, prospective, randomized, controlled phase III trial of home High Flow Nasal Therapy (HFNT) via myAirvo 3 plus usual COPD medical care vs. usual COPD medical care, for at least one year and up to two years in 642 GOLD Grade D, Stages III-IV patients with moderate to very severe COPD at risk for moderate and severe exacerbations with a prior history of severe exacerbation requiring hospitalization within the past six weeks.

View study NCT05204888 myAirvo 3 (High Flow Nasal Therapy; HFNT) for COPD Patients in the Home on ClinicalTrials.gov

Study Objective

To determine if HFNT delivered by myAirvo 3 increases the time to first moderate exacerbation or severe exacerbation or all-cause mortality in patients with moderate to very severe COPD

Secondary Objectives

To determine if HFNT delivered by myAirvo 3:

  • Increases the time to first severe exacerbation
  • Increases the time to first exacerbation (moderate or severe)
  • Reduces severe exacerbation frequency
  • Reduces moderate and severe exacerbation frequency
  • Reduces hospitalization duration
  • Improves quality of life
  • Reduces dyspnea
  • Reduces pCO2
  • Is safe and well tolerated
  • Determine if any of the objectives are related to duration of daily HFNT use
  • Assess cost effectiveness of HFNT use

Study Participants

Included 642 patients with stable COPD (GOLD Stages III-IV, Grade D); males and females 40 years of age or older, who reside in the United States

Study Participants

Description of Intervention

Patients assigned to the HFNT group will be provided a myAirvo 3 device

  • The myAirvo 3 is a humidifier with integrated flow generator that delivers warmed and humidified respiratory gases to spontaneously breathing patients through a variety of patient interfaces.
  • The interface used in this trial is the Optiflow™ + Duet nasal cannula sized for patient comfort.
  • Patients will also be provided with a pulse oximetry device that connects to the myAirvo 3 to record pulse oximetry and heart rate once daily after wearing the device for two minutes.

Patients assigned to the control group will be provided with:

  • A pulse oximetry device to record pulse oximetry and heart rate once daily after using the pulse oximeter for two minutes
  • A respiratory questionnaire and will input data into a smartphone adapted to be used as an electronic diary.
Study Duration​

Study Duration

Patients will be actively enrolled and followed during an overall study period of 42 months

Participant Duration of Participation

Minimum of 12 months and up to 24 months