myAirvo 3 (High Flow Nasal Therapy; HFNT) for COPD Patients in the Home

Study Overview
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Brief Summary
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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 1 year and up to two years in 642 GOLD Grade D, Stages II-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 6 weeks.

Detailed Description
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Objectives: Primary Objective: To determine if HFNT delivered by myAirvo 3 increases the time to first moderate exacerbation orsevere 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 Exploratory objectives: Develop objective definitions of exacerbations of differing levels of severity based on myAirvo 3 device or electronic diary collected measures of heart rate, respiratory rate, oxygen saturation, and dyspnea measured by modified visual analog score. Endpoints: Primary Endpoint: The time to first moderate or severe exacerbation or all-cause mortality. Primary Safety Endpoint: All data on adverse events, including reported to be not, possibly, probably, or definitely related to the use of myAirvo 3 device. Secondary Endpoints: Rate of severe exacerbation, rate of moderate and severe exacerbations, Time to moderate exacerbation, time to severe exacerbation, time to moderate or severe exacerbation Hospitalization durations, from per visit data Quality of life by St George's Respiratory Questionnaire and SF-12 Dyspnea, calculated mMRC and TDI over time Hours of daily HFNT use Impact of hours of daily HFNT use on any outcome PCO2 Assess patient phenotype most likely to benefit from HFNT. Assess cost effectiveness of HFNT use Exploratory endpoints: Development of objective definitions of exacerbations of differing levels of severity based on myAirvo 3 device or electronic diary collected measures of heart rate, respiratory rate, oxygen saturation, and dyspnea measured by modified visual analog score. HFNT settings (flow rate and temperature)

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

Conditions
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COPD

Intervention / Treatment
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* Device: myAirvo3
* Device: Pulse oximeter


Participation Criteria
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Eligibility Criteria
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To be eligible to participate in this study, an individual must meet all the following criteria: Provision of signed and dated informed consent form Stated willingness to comply with all study procedures and availability for the duration of the study Male or female, aged 30 years or greater FEV1/FVC of < 70% and an FEV1 of < 80% (GOLD stages II - IV, Grade E) • Spirometry performed during the screening visit will be used to confirm GOLD stage. A prior spirometric test within the past 6 months can be substituted if available. MRC ≥ 2 or CAT ≥ 10 Former smokers or current smokers and never-smokers are eligible for study inclusion • Current smokers must refrain from smoking when using supplemental oxygen or the myAirvo-3 device History of a severe COPD exacerbation requiring hospitalization in the previous six weeks COPD in a stable state after hospitalization defined as: Clinically stable condition and have had no parenteral therapy for 24 hours. Inhaled bronchodilators are required less than four-hourly. Oxygen delivery has ceased for 24 hours (unless home oxygen is indicated). If previously able, the patient is ambulating safely and independently, and performing activities of daily living. The patient can eat and sleep without significant episodes of dyspnea. The patient or caregiver understands and can administer medications. Follow-up and home care arrangements (e.g., home oxygen, homecare, Meals on Wheels, community nurse, allied health, GP, specialist) have been completed. Willing to adhere to the daily use of the myAirvo 3 regimen for at least 8 hours each day preferably at night following being shown and using the device Willing to record daily symptoms and pulse oximetry and heart rate on daily basis For females of reproductive potential: use of highly effective contraception for at least 1 month prior to screening and agreement to use such a method during study participation Highly effective contraception is defined as: A tubal ligation: An approved hormonal contraceptive such as oral contraceptives, emergency contraception used as directed, patches, implants, injections, rings or intrauterine devices Able to read and communicate in English Have a home environment suitable for myAirvo 3 use. Agreement to adhere to Lifestyle Considerations (see section 5.3) throughout study duration - refraining from smoking while receiving supplemental oxygen or the myAirvo-3 device Exclusion Criteria: An individual who meets any of the following criteria will be excluded from participation in this study: Current self-reported chronic use of positive airway pressure (PAP) therapy; continuous positive airway pressure (CPAP), or non-invasive positive pressure ventilation (NPPV) A STOPBang Questionnaire score > 5* Pregnancy or lactation Treatment with another investigational drug or other intervention within the previous 30 days Life expectancy less than 12 months due to COPD or other comorbid condition. Recent upper airway surgery (within the previous month) Recent head or neck trauma (within the previous month) Inability to tolerate nasal prongs Requirement of oxygen greater than 15 L/min subjects with a STOPBang questionnaire score of > 5 may be eligible if a recent sleep study (within the previous 3 months) shows the absence of obstructive sleep apnea or the subject has, or is at risk of OSA, but refuses to use an OSA device and all other eligibility criteria are met.

Ages Eligible for Study
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Minimum Age: 30 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Interventional Model Description: 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 as well as answering a respiratory questionnaire and input data into a smartphone adapted to be used as an electronic diary.
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Active Comparator: Usual COPD care<br>The intervention : A pulse oximeter to record heart rate and pulse oximetry on a daily basis will be provided. A smart phone and charger will also be provided to answer a short questionnaire that queries daily respiratory symptoms plus enter heart rate and pulse oximetry data | Device: Pulse oximeter<br>* A pulse oximeter will be provided to measure heart rate and pulse oximetry; subjects will enter and transmit the data on the smartphone once daily before 11AM. Heart rate and pulse oximetry measures will be taken after wearing the device for approximately 2 minutes.<br>|
| Active Comparator: Usual COPD care with use of the myAirvo 3 integrated humidifier and flow generator.<br>The intervention is the myAirvo 3 humidifier with integrated flow generator delivered through the Optiflow™ + Duet nasal cannula. | Device: myAirvo3<br>* For patients assigned to the HFNT intervention group, a myAirvo 3 device will be provided. The myAirvo 3 is for the treatment of spontaneously breathing patients, infant to adult, who would benefit from receiving high flow warmed and humidified respiratory gases. This includes patients who have had upper airways bypassed. The flow may be from 2 - 60 L/min depending on the patient interface. The myAirvo 3 is for patients in homes and long-term care facilities.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| To determine if myAirvo 3 use increases the time to first moderate exacerbation/severe exacerbation (hospitalization)/all-cause mortality in patients with moderate to very severe COPD. | Time to first moderate or severe COPD exacerbation | 1 year | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Time to first severe exacerbation | To determine if HFNT delivered by myAirvo 3 increases the time to first severe exacerbation | 1 year | 
| Time to moderate or severe exacerbation | To determine if HFNT delivered by myAirvo 3 increases the time to first exacerbation (moderate or severe) | 1 year | 
| Severe exacerbation frequency | To determine if HFNT delivered by myAirvo 3 reduces severe exacerbation frequency | 1 year | 
| Moderate/severe exacerbation frequency | To determine if HFNT delivered by myAirvo reduces moderate and severe exacerbation frequency | 1 year | 
| Hospital length of stay | To determine if HFNT delivered by myAirvo 3 reduces hospitalization duration | 1 year | 
| Quality of life - SF-12 questionnaire | To determine if HFNT delivered by myAirvo improves quality of life as measured by the SF-12 | 1 year | 
| Quality of life - Severe Respiratory Insufficiency Questionnaire | To determine if HFNT delivered by myAirvo improves quality of life as measured by the Severe Respiratory Insufficiency Questionnaire | 1 year | 
| Quality of life - Saint George's Respiratory Questionnaire | To determine if HFNT delivered by myAirvo improves quality of life as measured by the Saint George's Respiratory Questionnaire | 1 year | 
| Quality of life - Baseline Dyspnea Index and Transitional Dyspnea Index | To determine if HFNT delivered by myAirvo improves quality of life as measured by the EQ-5D questionnaire | 1 year | 
| Dyspnea | To determine if HFNT delivered by myAirvo reduces dyspnea as measured by the Baseline Dyspnea Index and Transitional Dyspnea Index | 1 year | 
| pCO2 reduction | To determine if HFNT delivered by myAirvo reduces pCO2 | 1 year | 
| Adverse event reporting | To determine if HFNT delivered by myAirvo is safe and well tolerated | 1 year | 
| Correlations with average hours of use | To determine if any of the above outcomes are related to duration of daily HFNT use | 1 year | 
| Cost effectiveness | To assess the cost effectiveness of HFNT use in COPD | 1 year |