NCT04164173

Brief Summary

The purpose of this prospective randomized clinical trial is to evaluate three different types of hyperinflation respiratory therapies, Intermittent Positive Pressure Breathing (IPPB), Intermittent positive end expiratory pressure (EzPAP), Metaneb. Investigators will examine which hyperinflation therapy provides better lung expansion and may improve lung recovery after surgery.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
324

participants targeted

Target at P75+ for not_applicable

Timeline
32mo left

Started Jun 2020

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Progress69%
Jun 2020Dec 2028

First Submitted

Initial submission to the registry

November 8, 2019

Completed
7 days until next milestone

First Posted

Study publicly available on registry

November 15, 2019

Completed
7 months until next milestone

Study Start

First participant enrolled

June 15, 2020

Completed
8.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 1, 2028

Expected
5 months until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2028

Last Updated

November 4, 2025

Status Verified

October 1, 2025

Enrollment Period

8.1 years

First QC Date

November 8, 2019

Last Update Submit

October 31, 2025

Conditions

Outcome Measures

Primary Outcomes (1)

  • Postoperative lung function as assessed by the changes in FEV1/FVC

    The postoperative changes in the Forced Expiratory Volume in one second (FEV1)/the Forced Vital Capacity (FVC) in microspirometry

    Up to 96 hours postoperatively or until discharge from the intensive care unit (ICU), whichever came first.

Study Arms (3)

EzPAP

EXPERIMENTAL

The patient will have EzPAP postoperative respiratory therapy as 3 x 10 breaths at a 1:4 ratio four times daily

Device: EzPAP

Metaneb

EXPERIMENTAL

The patient will have Metaneb postoperative respiratory therapy as 10 minutes Continuous Positive End Expiratory Pressure (CPEP) four times daily

Device: Metaneb

Intermittent Positive Pressure Breathing (IPPB)

EXPERIMENTAL

The patient will have Intermittent positive pressure breathing (IPPB) postoperatively for 10 minutes four times daily

Device: Intermittent Positive Pressure Breathing (IPPB)

Interventions

EzPAPDEVICE

Patient will receive 10 min EzPAP 4 times daily

Also known as: Postoperative hyperinflation therapy-EzPAP
EzPAP
MetanebDEVICE

Patient will receive 10 min Metaneb 4 times daily

Also known as: Postoperative hyperinflation therapy-Metaneb
Metaneb

Patient will receive 10 min IPPB 4 times daily

Also known as: Postoperative hyperinflation therapy-IPPB
Intermittent Positive Pressure Breathing (IPPB)

Eligibility Criteria

Age18 Years - 80 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Age 18 years and older
  • Admitted to Cardiovascular ICU (CVICU) after coronary artery bypass grafting (CABG), isolated valve repair/replacement, or CABG + valve repair/replacement
  • Cardiac surgery performed via median sternotomy

You may not qualify if:

  • BMI\>40
  • Refusal to be consented
  • Prior or current lung transplant patients

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

UT Southwestern Clements University Hospital

Dallas, Texas, 75390, United States

RECRUITING

MeSH Terms

Conditions

Lung DiseasesPostoperative Complications

Interventions

Intermittent Positive-Pressure Breathing

Condition Hierarchy (Ancestors)

Respiratory Tract DiseasesPathologic ProcessesPathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

Positive-Pressure RespirationRespiration, ArtificialAirway ManagementTherapeuticsRespiratory Therapy

Study Officials

  • Jaffer Odeh, MD

    University of Texas Southwestern Medical Center

    STUDY CHAIR

Central Study Contacts

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Masking Details
Assessment respiratory therapist will be blinded to respiratory therapy modalities.
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Assistant Profesor

Study Record Dates

First Submitted

November 8, 2019

First Posted

November 15, 2019

Study Start

June 15, 2020

Primary Completion (Estimated)

August 1, 2028

Study Completion (Estimated)

December 31, 2028

Last Updated

November 4, 2025

Record last verified: 2025-10

Locations