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Single-ventricleNCT05634226

Simple Non-invasive Breathing Device to Improve Pulmonary Flow Pusatility in Single Ventricle Post Fontan

A study testing Hands-free oral-positive pressure device (oPEP) in people with Single-ventricle, run by Tarek Alsaied at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This is a pilot study using a novel, minimal risk, portable, hands-free oral-positive pressure device (oPEP) in patients with Fontan palliation that will examine whether using this device in both the acute and chronic phase will alter Fontan hemodynamics and create pulsatility in the Fontan circuit and thereby… Read more about this study

Who is it for?
Ages 8 years and older
Conditions the study is for
Single-ventricle
What is being tested?
Hands-free oral-positive pressure device (oPEP)
Could I receive a placebo?
No, everyone receives an active treatment
How many people
15 participants
Where
1 siteUnited States
Study dates
1 Aug 2023to 31 Jan 2024
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 8 years and older
  • All sexes
  • No healthy volunteers
  • Child, Adult, Older adult

Who may be able to join

  • Patients with single ventricle with Fontan palliation
  • Over the age of 8 years who would be cooperative with breathing through the oPEP device

Who cannot join

  • Patients with Fontan palliation under the age of 8 years
  • Patients who have interrupted inferior vena cava
  • Patients with abnormal pulmonary artery anatomy

Trial locations and contacts

1 site in 1 country.

United States1 site
  • UPMC Children's Hospital Pittsburgh

    Pittsburgh, Pennsylvania, 15235

Other trials in United States

About this study

Official title: Oral Positive Pressure Device (oPEP) Effect on Flow Pulsatility in the Fontan Circuit

This is a pilot study using a novel, minimal risk, portable, hands-free oral-positive pressure device (oPEP) in patients with Fontan palliation that will examine whether using this device in both the acute and chronic phase will alter Fontan hemodynamics and create pulsatility in the Fontan circuit and thereby increasing cardiac output. This device is easy to use and poses no significant risk to human subjects. The investigators will measure this through echocardiographic measures including pulsatility in different aspects of the Fontan circuit including IVC, hepatic veins, the Fontan conduit, and pulmonary arteries and aortic blood flow measurements. After demonstration of how to use the device appropriately, the investigators will have patients use the device after their clinical echocardiogram for their clinic appointment. The investigators will ask them to use the device at home 3-4 times a day for 10-15 mins and have them return in approximately 4 weeks to have another echocardiogram done with the same measurements.

Read the detailed description

The aortic VTI secondary outcome was inadvertently left out of the initial registration and is now reported

Being tested
Hands-free oral-positive pressure device (oPEP)
Medical subject headings
Univentricular Heart

What participants receive

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

  • Hands-free oral-positive pressure device (oPEP)Device

    This is a pilot study using a novel, minimal risk, portable, hands-free oral-positive pressure device (oPEP) in patients with Fontan palliation that will examine whether using this device in both the acute and chronic phase will alter Fontan hemodynamics and create pulsatility in the Fontan circuit and thereby increasing cardiac output. This device is easy to use and poses no significant risk to human subjects. We will measure this through echocardiographic measures including pulsatility in different aspects of the Fontan circuit including IVC, hepatic veins, the Fontan conduit, and pulmonary arteries and aortic blood flow measurements. After demonstration of how to use the device appropriately, we will have patients use the device after their clinical echocardiogram for their clinic appointment. We will ask them to use the device at home 3-4 times a day for 10-15 mins and have them return in approximately 4 weeks to have another echocardiogram done with the same measurements.

Study groups in NCT05634226
Study groupRoleWhat they receive
Hands-free oral-positive pressure device (oPEP)ExperimentalNot described
Receives: Device: Hands-free oral-positive pressure device (oPEP)

What is being measured

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

  1. Change in Pulmonary Pulsatility Index

    This will be measured by echocardiogram using Doppler evaluation of the pulmonary artery

    The Pulmonary Artery Pulsatility Index (PAPI) is calculated using Doppler-derived pulmonary artery velocities:

    PAPI= (Systolic Velocity - Diastolic Velocity) /Mean Velocity

    Measured: The change is between enrollment echocardiogram and echocardiogram after 4 week use of the device

Secondary outcomes (1)
  1. Aortic Valve VTI

    This was measured by echocardiography

    Aortic Valve Velocity Time Integral (VTI) Definition: Aortic VTI is a key echocardiographic measurement reflecting stroke distance and cardiac output.

    Measurement:

    Obtained using pulsed-wave Doppler at the left ventricular outflow tract (LVOT) just below the aortic valve.

    The VTI is measured by tracing the Doppler envelope of the LVOT flow during systole.

    Clinical Importance:

    Stroke Volume Calculation:

    Stroke Volume = LVOT VTI × LVOT Area

    Measured: Baseline, 4 weeks

Timeline

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

  1. First posted2 Dec 2022
  2. Study start1 Aug 2023
  3. Primary completion31 Jan 2024
  4. Study completion31 Jan 2024

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
Prevention
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
15 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05634226
Sponsor's protocol ID
STUDY22050151
Status last verified
Jan 2025
First submitted
21 Nov 2022
Last updated
10 Feb 2025
FDA-regulated drug
No
FDA-regulated device
Yes

Questions about this trial

What is this clinical trial studying?

A study testing Hands-free oral-positive pressure device (oPEP) in people with Single-ventricle, run by Tarek Alsaied 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 2 inclusion and 3 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: finished, as of the sponsor's last update on 10 Feb 2025. 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 10 Feb 2025). 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?

Change in Pulmonary Pulsatility Index (time frame: The change is between enrollment echocardiogram and echocardiogram after 4 week use of the device). 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 10 Feb 2025.

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