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Chronic Obstructive Pulmonary DiseaseNCT02680639

The Use of High Frequency Oscillations With NIV in Hypercapnic COPD Participants

A study testing BiPAP Synchrony ventilator in people with Chronic Obstructive Pulmonary Disease, run by Philips Respironics at 1 site in United States.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

Chronic Obstructive Pulmonary Disease (COPD) is a major cause of chronic morbidity and mortality throughout the world, being the fourth leading cause of death in the world. This study is designed to detect COPD participants with Expiratory Flow Limitation. Read more about this study

Who is it for?
Ages 21 to 85 years
Conditions the study is for
Chronic Obstructive Pulmonary Disease
What is being tested?
BiPAP Synchrony ventilator
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
10 participants
Where
1 siteUnited States
Study dates
13 Nov 2015to 24 Aug 2016
Phase
Interventional
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 21 to 85 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Age > 21 years of age; < 85 years of age
  • Participants that have been physician diagnosed (primary diagnosis) with Obstructive Airway Disease (to include:Chronic Obstructive Pulmonary Disease (COPD); Bronchiectasis; Severe Asthma); forced expiratory volume in 1 second (FEV1) < 60% FEV1/ forced vital capacity (FVC) <60%
  • Arterial CO2 > 45 mmHg as determined by blood gas (PaCO2) or transcutaneous (tcCO2) >50 within the past month
  • Ability to provide consent
  • Participant has not used Non-Invasive Ventilation (BiPAP/CPAP) therapy in the past 8 hours
  • Participant has no child bearing potential OR a negative pregnancy test in a woman of childbearing potential

Who cannot join

  • Participants that have not returned to their baseline health status from an exacerbation of COPD or other pulmonary problems or have not established at least two weeks of stability at a new baseline.
  • Use of antibiotics or prednisone for a COPD exacerbation within the previous 4 weeks.
  • Uncontrolled Hypertension
  • Participants that require greater than 3 liters of oxygen at rest
  • History of cardiovascular instability, including uncontrolled ventricular arrhythmias, angina, diastolic BP > 100 mmHg and all Participants with pacemakers
  • Any major non-COPD uncontrolled disease or condition, such as congestive heart failure, malignancy, end-stage heart disease, liver or renal insufficiency (that requires current evaluation for liver or renal transplantation or dialysis), amyotrophic lateral sclerosis, or severe stroke, or other condition as deemed appropriate by investigator as determined by review of medical history and / or participant reported medical history
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  • History of pneumothorax
  • Apnea Hypopnea Index (AHI) > 15 via in-home sleep study
  • Excessive alcohol intake (> 6oz hard liquor, 48 oz. beer or 20 oz. wine daily), or illicit drug use by review of medical history and / or participant reported medical history
  • Daily use of prescribed narcotics (greater than 30 mg morphine equivalent)
  • History of Giant bullous emphysema
  • A positive urine pregnancy test when screening for study

Trial locations and contacts

1 site in 1 country.

United States1 site
  • University of Pittsburgh Medical Center

    Pittsburgh, Pennsylvania, 15213

Other trials in United States

About this study

Official title: The Use of High Frequency Oscillations With Noninvasive Ventilation (NIV) in Hypercapnic Chronic Obstructive Pulmonary Disease (COPD) Participants

Chronic Obstructive Pulmonary Disease (COPD) is a major cause of chronic morbidity and mortality throughout the world, being the fourth leading cause of death in the world.

This study is designed to detect COPD participants with Expiratory Flow Limitation. EFL occurs when the airways become compressed which usually results when a pressure outside the airway exceeds the pressure inside the airway.

Participants will undergo study eligibility procedures at visit 1. At visit 2 participants will undergo a baseline auto-EPAP (Expiratory Positive Airway Pressure) measurement. Then the order will be randomized to three different treatment methods. Between each treatment there will be at least a 10 minute washout period in order for CO2 to stabilize and return to baseline.

Read the detailed description

Chronic Obstructive Pulmonary Disease (COPD) is a major cause of chronic morbidity and mortality throughout the world, being the fourth leading cause of death in the world.

COPD is a disease that results in varying degrees of dyspnea, or shortness of breath. Spirometry is a method of diagnosing COPD with the presence of a post bronchodilator FEV1 <80% of the predicted value in combination with an FEV1 / FVC <70%. This would confirm that there is a presence of airflow limitation that is not fully reversible.

The presence of airflow limitation has been identified as one of the main causes of dyspnea in patients with chronic obstructive pulmonary disease (1). Expiratory Flow Limitation (EFL) occurs when the airways become compressed which usually results when a pressure outside the airway exceeds the pressure inside the airway. As an airflow obstruction worsens, EFL appears at much lower flows for a given lung volume and it becomes present at rest or at least develops early during exercise (2).

Early detection of EFL consisted of either invasive balloon catheterization or relatively complex plethysmographic techniques. An alternative approach, and one that will be used in this study, involves utilizing the Forced Oscillation Technique (FOT).

Alternatively High Frequency Oscillations (HFO) has shown to effectively lower CO2 levels, but traditionally require intubation or a trans tracheal catheter. Treatment with a specialized noninvasive ventilator is possible and it is proposed that therapy can be augmented by the application of an optimized EPAP to splint open the lower airways in order to increase the diffusive capabilities of the high frequency oscillations into lower alveolar regions. There are approximately 25 million hypercapnic patients with EFL that could benefit from this therapy. High frequency oscillations integrated into a specialized noninvasive ventilator has the advantages of lower cost than other solutions and significantly lower medical risks. In addition, high frequency oscillation uses lower pressures to achieve effective therapy which means less chance of barotrauma and greater patient acceptance.

This study will enroll subjects at a screening visit. Screening will include a physical exam and vital signs, pregnancy test (if applicable), questionnaires, pulse oximetry, measure of carbon dioxide levels, determination of EFL by an auto- Expiratory Positive Airway Pressure (EPAP) ventilator, and spirometry.

If the patient is eligible and tolerates the above procedures, they will be asked to complete an in home-based sleep study prior to visit 2. Alice Night One/ Alice PDX are portable home sleep testing devices that record information about breathing.

At visit 2 participants will be monitored continuously via a 3 lead EKG, oxygen saturation by pulse oximetry (SPO2), Carbon Dioxide concentration(TcCO2) monitor, RespiTrace belt and ventilator data.

During Visit 2, participants will first undergo a repeat optimal EPAP determination and then trial 3 different sessions of High Frequency Oscillation (HFO) therapy for 20 minutes with at least a 10 minute wash out period between each session to allow the participant's CO2 to stabilize or return to baseline. The order of the sessions will be randomized for each patient. Participants will be placed in a semi-recumbent position and wear a nasal CPAP mask for each session. A TcCO2 monitor patch will be placed on the skin (forehead area) to collect carbon dioxide measurements during each session. A RespiTrace belt will placed on the participants' chest wall to measure chest wall and diaphragmatic excursion during each session. A 3 lead EKG will also be used to monitor cardiac activity during each session.

Being tested
BiPAP Synchrony ventilator
Keywords
High-Frequency Ventilation, Biphasic Continuous Positive Airway Pressure
Medical subject headings
Pulmonary Disease, Chronic Obstructive

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • BiPAP Synchrony ventilatorDevice

    The BiPAP Synchrony ventilator will be used to determine Expiratory Positive Airway Pressure (EPAP). The ventilator will be used with varying pressure supports and oscillations depending on what arm of the study the participant is in.

Study groups in NCT02680639
Study groupRoleWhat they receive
optimal EPAP determinationActive comparatorOn the BiPAP Synchrony ventilator the EPAP (and IPAP) will be automatically adjusted by the ventilator to find optimal EPAP that abolishes EFL. Peak-to-Peak pressure oscillations will be set at 2.5 cmH2O (centimeters of water)
Receives: Device: BiPAP Synchrony ventilator
Optimized EPAP w/ no peak-to-peakExperimentalOn the BiPAP Synchrony ventilator the EPAP (and IPAP) will be set at optimal pressure as determined by the Auto EPAP. Peak-to-Peak pressure oscillations will be set at 0 cmH2O (centimeters of water)
Receives: Device: BiPAP Synchrony ventilator
Optimized EPAP w/ max peak-to-peakExperimentalOn the BiPAP Synchrony ventilator EPAP (and IPAP) will be set at optimal pressure as determined by the Auto EPAP. Peak-to-Peak pressure oscillations will be set at 5 cmH2O (centimeters of water)
Receives: Device: BiPAP Synchrony ventilator
non-optimized EPAP w/ no peak-to-peakExperimentalOn the BiPAP Synchrony ventilator EPAP will be set at 4 cmH2O and IPAP will be set at 10 cmH2O (centimeters of water). Peak-to-Peak pressure oscillations will be set at 0 cmH2O (centimeters of water).
Receives: Device: BiPAP Synchrony ventilator

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Carbon Dioxide Levels

    Transcutaneous carbon dioxide (TcCO2) monitoring is a non-invasive alternative to arterial blood sampling. Carbon Dioxide Levels will be measured for each participant as they complete each arm.

    Measured: Baseline and 20 minutes

Secondary outcomes (3)
  1. Respiratory Rate

    Minute ventilation in regards to respiratory rate and volume of gas exchanged will be measured for each participant as they complete each arm.

    Measured: 20 minutes

  2. Tidal Volume

    Minute ventilation in regards to volume of gas exchanged will be measured for each participant as they complete each arm.

    Measured: 20 minutes

  3. Minute Ventilation for Carbon Dioxide

    Minute Ventilation in regards to the diffusion state of the lungs and carbon dioxide will be measured for each participant as they complete each arm.

    Measured: 20 minutes

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted11 Feb 2016 (estimated)
  2. Study start13 Nov 2015
  3. Primary completion24 Aug 2016
  4. Study completion24 Aug 2016

Why it stopped: Study had a high screen fail rate, enrollment was open over a year, only 3 completed.

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Basic science
Allocation
Randomised
Intervention model
Factorial
Masking
None (open label)
Enrolment
10 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02680639
Sponsor's protocol ID
HRC-1433-HFO-SS
Status last verified
Apr 2019
First submitted
9 Feb 2016
Last updated
6 May 2019
Data monitoring committee
No
Individual data sharing
No: There are no plans to share individual participant data (IPD), only aggregate data.

Questions about this trial

What is this clinical trial studying?

A study testing BiPAP Synchrony ventilator in people with Chronic Obstructive Pulmonary Disease, run by Philips Respironics at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 6 inclusion and 12 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: stopped early, as of the sponsor's last update on 6 May 2019. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Yes. Results are posted in the registry (first posted 22 Apr 2019). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Carbon Dioxide Levels (time frame: Baseline and 20 minutes). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 6 May 2019.

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