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Chronic Obstructive Pulmonary Disease (COPD)NCT03082924

Surface EMGdi Evaluate the Efficacy of Pulmonary Rehabilitation in Patients With COPD: a Multi Center Prospective Study

A study testing Calibrated cycle ergometer, Threshold loading device and Calibrated cycle ergometer and threshold loading device in people with Chronic Obstructive Pulmonary Disease (COPD), run by Zhujiang Hospital at 1 site in China.

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

Pulmonary rehabilitation is recognized as a core component of the management of individuals with chronic obstructive respiratory disease, which has become first-line treatment besides drug therapy. Read more about this study

Who is it for?
Ages 40 to 80 years
What is being tested?
Calibrated cycle ergometer, Threshold loading device and Calibrated cycle ergometer and threshold loading device
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
500 participants
Where
1 siteChina
Study dates
Jul 2016to Jun 2021
Phase
Interventional
Are there results?
None posted in the registry

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 40 to 80 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Patients aged over 40 years old.
  • Patients with pulmonary function test of forced expiratory volume at one second(FEV1)/forced vital capacity(FVC) < 70%.
  • Patients in a clinically stable state
  • Patients who signed informed consent.
  • No participation in other pulmonary rehabilitation program within the previous 2 months.

Who cannot join

  • Patients with signs of an airway infection.
  • Patients with metabolic disease and serious cardiovascular disease.
  • Patients with Multiple pulmonary bulla.
  • Patients with poor compliance.

Trial locations and contacts

1 site in 1 country.

China1 site
  • Zhujiang Hospital,Southern Medical Universtiy

    Guangzhou, Guangdong, 510282

Other trials in China

About this study

Official title: Surface Diaphragm EMG Evaluate the Clinical Efficacy of Pulmonary Rehabilitation in Patients With Chronic Obstructive Pulmonary Disease: a Multi Center Prospective Randomized Controlled Study

Pulmonary rehabilitation is recognized as a core component of the management of individuals with chronic obstructive respiratory disease, which has become first-line treatment besides drug therapy. However, in the current clinical evaluation system of pulmonary rehabilitation, there is still a lack of simple, objective index,which can be monitored at any time.Neural respiratory drive , as an important physiological index, is closely related to the symptoms and the severity of the disease. It may be a sensitive indicator to evaluate the effectiveness of pulmonary rehabilitation. Surface EMGdi can accurately evaluate neural respiratory drive , its detection is non-invasive, simple and safety . In recent years, with the development of signal detection and analysis technology, EMG recording is more stable, but as the related research samples were low, surface diaphragm EMG has not yet the establishment of standardization. Therefore, based on the previous work, the project was carried out in a multicenter randomized controlled study,in which the stable stage of COPD patients were included in different ways of pulmonary rehabilitation training, a comprehensive clinical assessment will be conducted before and after training. Compared with the traditional evaluation methods and standard esophageal diaphragmatic electromyography, surface EMGdi detect the changes of neural respiratory drive in patients with COPD,that can help to explore the application value of surface EMGdi in the assessment of chronic obstructive pulmonary disease with pulmonary rehabilitation, to provide a basis for the promotion of the diaphragm and the optimization of pulmonary rehabilitation program.

Read the detailed description

The patients with COPD will participate in a rehabilitation program for 52 weeks.

Participants in the proposed study will be randomly programmed into one of four intervention groups:

  1. Neither cycle training nor inspiratory muscle training.
  2. Cycle training program alone (performing on calibrated stationary cycle ergometer).
  3. Inspiratory muscle training alone (performing on threshold loading device).
  4. Combined cycle training and inspiratory muscle training(performing on calibrated stationary cycle ergometer and threshold loading device).
Being tested
Control group, Calibrated cycle ergometer, Threshold loading device, Calibrated cycle ergometer and threshold loading device
Keywords
surface EMGdi, pulmonary rehabilitation, inspiratory muscle training, exercise training
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.

  • Control groupDevice

    Neither cycle training nor inspiratory muscle training.

  • Calibrated cycle ergometerDevice

    The most common device to perform cycle training is calibrated cycle ergometer.

  • Threshold loading deviceDevice

    Threshold loading device is used to perform inspiratory muscle training.

  • Calibrated cycle ergometer and threshold loading deviceDevice

    Combined cycle training and inspiratory muscle training.The threshold loading device is composed of a mouth -piece attached to a small plastic cylinder that contains a spring-loaded poppet value. The valve opens to permit inspiratory flow only once the person has generated adequate negative intrathoracic pressure to condense the spring.

Study groups in NCT03082924
Study groupRoleWhat they receive
Control groupExperimentalNeither cycle training nor inspiratory muscle training.
Receives: Device: Control group
Cycle training groupExperimentalA calibrated cycle ergometer is used to do 30-minute cycling training session 3 days a week.
Receives: Device: Calibrated cycle ergometer
Inspiratory training groupExperimentalA threshold loading device is used to perform 21-minute inspiratory muscle training 3 days a week.
Receives: Device: Threshold loading device
Combined groupExperimentalCalibrated cycle ergometer and threshold loading device are applied.A 30-minute cycle training is performed using calibrated cycle ergometer and a 21-minute inspiratory muscle training using threshold loading device 3 days a week.
Receives: Device: Calibrated cycle ergometer and threshold loading device

What is being measured

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

  1. Diaphragmatic function(composite outcome measure)

    Diaphragmatic function can be assessed by diaphragm electromyogram (EMGdi), which reflect the physiological activity of the diaphragm and indicate functional status of the central drive.

    Measured: Change from baseline in diaphragm electromyogram.(8 weeks later, 26 weeks later, 52 weeks later)

Secondary outcomes (5)
  1. Inspiratory muscle function(composite outcome measure)

    Currently, the maximal inspiratory pressure (PImax) and maximal expiratory pressures(PEmax) are measured by a digital manometer (AZ-8205, AZ Instrument, Taichung City, Taiwan)and combined to evaluate inspiratory muscle function.

    Measured: Change from baseline in inspiratory muscle function.(8 weeks later, 26 weeks later, 52 weeks later)

  2. Pulmonary Function(composite outcome measure)

    Pulmonary function is measured using a spirometer(PonyFX 229, Cosmed, Rome, Italy) that is calibrated daily.The FEV1 and percent-of-predicted FEV1, FVC and percent-of-predicted FVC which are presented in one report are used to evaluate Pulmonary Function.

    Measured: Change from baseline in pulmonary function.(8 weeks later, 26 weeks later, 52 weeks later)

  3. Cardiopulmonary exercise test(composite outcome measure)

    Cardiopulmonary exercise test can help to reflect the variables,like maximaloxygen uptake(VO2max), anaerobic threshold (AT).

    Measured: Change from baseline in cardiopulmonary exercise test.(8 weeks later, 26 weeks later, 52 weeks later)

  4. Degree of dyspnea(composite outcome measure)

    Difference in the degree of dyspnea can be measured by Borg index.

    Measured: Change from baseline in degree of dyspnea.(8 weeks later, 26 weeks later, 52 weeks later)

  5. Exercise capacity(composite outcome measure)

    Exercise capacity is evaluated using the 6-min walking distance (6MWD) according to American Thoracic Society guidelines.

    Measured: Change from baseline in exercise performance.(8 weeks later, 26 weeks later, 52 weeks later)

Timeline

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

  1. First posted17 Mar 2017
  2. Study startJul 2016
  3. Primary completionDec 2020
  4. Study completionJun 2021

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
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
500 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03082924
Sponsor's protocol ID
CX20160902
Status last verified
Mar 2017
First submitted
27 Dec 2016
Last updated
13 Mar 2024
Results posted
No
Data monitoring committee
Yes
Individual data sharing
Undecided

Questions about this trial

What is this clinical trial studying?

A study testing Calibrated cycle ergometer, Threshold loading device and Calibrated cycle ergometer and threshold loading device in people with Chronic Obstructive Pulmonary Disease (COPD), run by Zhujiang Hospital at 1 site in China.

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 5 inclusion and 4 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 13 Mar 2024. 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 China. 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?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

Diaphragmatic function(composite outcome measure) (time frame: Change from baseline in diaphragm electromyogram.(8 weeks later, 26 weeks later, 52 weeks later)). 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 13 Mar 2024.

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