NCT04742114

Brief Summary

The purpose of this study is to evaluate the safety and the effects and of the application of Expiratory Positive Airway Pressure (EPAP) device on Dynamic Hyperinflation and dyspnea in patients with Emphysema and pulmonary bullae.

Trial Health

43
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
200

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Jul 2021

Geographic Reach
1 country

1 active site

Status
unknown

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

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

January 21, 2021

Completed
15 days until next milestone

First Posted

Study publicly available on registry

February 5, 2021

Completed
6 months until next milestone

Study Start

First participant enrolled

July 31, 2021

Completed
1.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 10, 2022

Completed
10 days until next milestone

Study Completion

Last participant's last visit for all outcomes

November 20, 2022

Completed
Last Updated

March 29, 2022

Status Verified

March 1, 2022

Enrollment Period

1.3 years

First QC Date

January 21, 2021

Last Update Submit

March 27, 2022

Conditions

Keywords

EmphysemaBullousExpiratory Positive Airway Pressure

Outcome Measures

Primary Outcomes (1)

  • CT DICOM data

    Quantitative analysis of emphysema severity will be performed on segmented lung images by using the Slicer software package. The total emphysema percentage will be defined as all lung voxels with a CT attenuation value of less than - 910 HU.

    Change from Baseline CT attenuation value at 6 months.

Secondary Outcomes (33)

  • FVC in pulmonary function test

    Change from Baseline FVC data at 2 months.

  • FVC in pulmonary function test

    Change from Baseline FVC data at 4 months.

  • FVC in pulmonary function test

    Change from Baseline FVC data at 6 months.

  • FVC% in pulmonary function test

    Change from Baseline FVC% data at 2 months.

  • FVC% in pulmonary function test

    Change from Baseline FVC% data at 4 months.

  • +28 more secondary outcomes

Study Arms (2)

the face mask without EPAP

SHAM COMPARATOR

Will be collected clinical and anthropometric data of the participant. Will have the pulmonary function test every two months. Will be collected CT scan data. Patients will conduct 6MWT every two months. Borg scale data will be collected.The face mask without the application of EPAP will be used.

Device: use the face mask without Expiratory Positive Airway Pressure(EPAP).

the face mask with EPAP

EXPERIMENTAL

Will be collected clinical and anthropometric data of the participant. Will have the pulmonary function test every two months. Will be collected CT scan data. Patients will conduct 6MWT every two months. Borg scale data will be collected.The application of EPAP (15cmH2O) via face mask will be used.

Device: use the face mask with Expiratory Positive Airway Pressure(EPAP).

Interventions

The subjects were divided into two groups. The first group use the face mask without EPAP, and the other group use the face mask with EPAP.

the face mask with EPAP

The subjects were divided into two groups. The first group use the face mask without EPAP, and the other group use the face mask with EPAP.

the face mask without EPAP

Eligibility Criteria

AgeUp to 75 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

  • The patient was ≤75 years old
  • CT examination revealed emphysema (absolute CT value ≥900) or bullae
  • CT do not show other imaging changes of lung diseases, such as mass, exudation and interstitial changes
  • No history of lung cancer, pneumonectomy, any history of cystic fibrosis, allergic alveolitis, or pulmonary fibrosis
  • Patients volunteer to participate and sign informed consent

You may not qualify if:

  • Patients with asthma, bronchiectasis, interstitial lung disease and other basic lung diseases
  • Patients with heart failure
  • Patients with a history of malignancy
  • Patients are reluctant to participate

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Qilu Hospital of Shandong University

Jinan, Shandong, 250012, China

RECRUITING

Related Publications (9)

  • Wang C, Xu J, Yang L, Xu Y, Zhang X, Bai C, Kang J, Ran P, Shen H, Wen F, Huang K, Yao W, Sun T, Shan G, Yang T, Lin Y, Wu S, Zhu J, Wang R, Shi Z, Zhao J, Ye X, Song Y, Wang Q, Zhou Y, Ding L, Yang T, Chen Y, Guo Y, Xiao F, Lu Y, Peng X, Zhang B, Xiao D, Chen CS, Wang Z, Zhang H, Bu X, Zhang X, An L, Zhang S, Cao Z, Zhan Q, Yang Y, Cao B, Dai H, Liang L, He J; China Pulmonary Health Study Group. Prevalence and risk factors of chronic obstructive pulmonary disease in China (the China Pulmonary Health [CPH] study): a national cross-sectional study. Lancet. 2018 Apr 28;391(10131):1706-1717. doi: 10.1016/S0140-6736(18)30841-9. Epub 2018 Apr 9.

    PMID: 29650248BACKGROUND
  • Ranieri VM, Giuliani R, Cinnella G, Pesce C, Brienza N, Ippolito EL, Pomo V, Fiore T, Gottfried SB, Brienza A. Physiologic effects of positive end-expiratory pressure in patients with chronic obstructive pulmonary disease during acute ventilatory failure and controlled mechanical ventilation. Am Rev Respir Dis. 1993 Jan;147(1):5-13. doi: 10.1164/ajrccm/147.1.5.

    PMID: 8420430BACKGROUND
  • Fagevik Olsen M, Lannefors L, Westerdahl E. Positive expiratory pressure - Common clinical applications and physiological effects. Respir Med. 2015 Mar;109(3):297-307. doi: 10.1016/j.rmed.2014.11.003. Epub 2014 Nov 12.

    PMID: 25573419BACKGROUND
  • Blanch L, Bernabe F, Lucangelo U. Measurement of air trapping, intrinsic positive end-expiratory pressure, and dynamic hyperinflation in mechanically ventilated patients. Respir Care. 2005 Jan;50(1):110-23; discussion 123-4.

    PMID: 15636649BACKGROUND
  • Kondili E, Alexopoulou C, Prinianakis G, Xirouchaki N, Georgopoulos D. Pattern of lung emptying and expiratory resistance in mechanically ventilated patients with chronic obstructive pulmonary disease. Intensive Care Med. 2004 Jul;30(7):1311-8. doi: 10.1007/s00134-004-2255-z. Epub 2004 Mar 31.

    PMID: 15054570BACKGROUND
  • Gosselink R. Controlled breathing and dyspnea in patients with chronic obstructive pulmonary disease (COPD). J Rehabil Res Dev. 2003 Sep-Oct;40(5 Suppl 2):25-33. doi: 10.1682/jrrd.2003.10.0025.

    PMID: 15074451BACKGROUND
  • Dechman G, Wilson CR. Evidence underlying breathing retraining in people with stable chronic obstructive pulmonary disease. Phys Ther. 2004 Dec;84(12):1189-97.

    PMID: 15563259BACKGROUND
  • Puente-Maestu L, Stringer WW. Hyperinflation and its management in COPD. Int J Chron Obstruct Pulmon Dis. 2006;1(4):381-400. doi: 10.2147/copd.2006.1.4.381.

    PMID: 18044095BACKGROUND
  • Xu Z, Han Z, Ma D. Efficacy and safety of long-term use of a positive expiratory pressure device in chronic obstructive pulmonary disease patients, a randomized controlled trial. BMC Pulm Med. 2023 Jan 16;23(1):17. doi: 10.1186/s12890-023-02319-5.

MeSH Terms

Conditions

Emphysema

Condition Hierarchy (Ancestors)

Pathologic ProcessesPathological Conditions, Signs and Symptoms

Study Officials

  • dedong ma, Doctor

    Qilu Hospital of Shandong University

    PRINCIPAL INVESTIGATOR

Central Study Contacts

dedong ma, Doctor

CONTACT

zhaoning xu, PostGraduate

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR
Purpose
PREVENTION
Intervention Model
PARALLEL
Model Details: The subjects were divided into two groups. The first group use the breathing mask without the positive pressure valve, and the second group use the breathing mask with a positive pressure valve, that is EPAP breathing mask.
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

January 21, 2021

First Posted

February 5, 2021

Study Start

July 31, 2021

Primary Completion

November 10, 2022

Study Completion

November 20, 2022

Last Updated

March 29, 2022

Record last verified: 2022-03

Locations