Effect of External Counter Pulsation on Coronary Artery Disease (ECP-CAD)

December 12, 2017 updated by: Guifu Wu, Eighth Affiliated Hospital, Sun Yat-sen University

Effect of External Counter Pulsation on Coronary Artery Disease (ECP-CAD)

Coronary artery disease (CAD) is prevalent worldwide and the leading cause of mortality of citizens, external counter pulsation (ECP) has been elucidated that it may release angina symptoms and improve the prognosis of CAD, however, no multi-center control clinical study has been reported for further recommendation. The aim of this study is to evaluate the effect of ECP on CAD. To address this assumption, investigators enroll participants with stable CAD and randomize them into control or ECP group, the ECP intervention will be carried out with a standard protocol which involves 35 one-hour sessions (5 days a week) for continuous 7 weeks, and the follow-up will last for 1 year. The primary endpoint is the 1-year composite cardiovascular events (CCE), secondary endpoints include frequency of angina pectoris, heart function, biomarkers of arteriosclerosis, exercise tolerance and endothelial function.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Unknown

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

CAD is the leading cause of non-tumor mortality in most countries, ECP is a non-invasive method which consists of three sets of pneumatic cuffs attached to each of the patient's legs at the calf and lower and upper thigh. The inflation of the cuffs is triggered by a computer, and timing of the inflation is based on the R wave of the electrocardiogram. The ECP therapist adjusts the inflation and deflation timing to provide optimal blood movement per a finger plethysmogram waveform reading. This produces a retrograde flow of blood in the aorta resulting in a diastolic augmentation of blood flow and also an increase in venous return, which leads to an improved coronary perfusion pressure during diastole. Cumulative evidences demonstrate that ECP can improve life quality and release refractory angina which is not optimally controlled despite optimal medical management and coronary revascularization in patients with CAD, though the previous multi-center control trial (PROBE-EECP) had been designed, no result about the effect of ECP on the prognosis of CAD has been reported. Thus, this study is designed to enroll 380 participants with stable CAD after evaluation of frequency of angina pectoris, heart function, biomarkers of arteriosclerosis, exercise tolerance and endothelial function, participants will be randomized into ECP intervention group or control group. All participants receive Guideline-driven standard medical treatment, ECP will be carried out with a standard protocol which involves 35 one-hour sessions (5 days a week) for continuous 7 weeks. Up to the end of ECP intervention, CCE will be follow up to 1 year, meanwhile, items as above will be retested for comparison.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Anticipated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
380

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 3

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Locations

  • China
    • Henan
      • Zhengzhou, Henan, China
        • Recruiting
        • The Second Affiliated Hospital of Zhengzhou University
        • Contact:
          • Hui Zhang, MD
          • Phone Number: +86 13298322770
    • Hunan
      • Changsha, Hunan, China
        • Recruiting
        • Xiangya Hospital Central South University
        • Contact:
          • Tianlun Yang, MD
          • Phone Number: +8613707315500
    • Shanghai
      • Shang Hai, Shanghai, China
        • Recruiting
        • Tenth People's Hospital of Tongji University
        • Contact:
          • Weiming Li, MD
          • Phone Number: +86 18917683469
    • Shanxi
      • Xi'an, Shanxi, China
        • Recruiting
        • The Second Affiliated Hospital of Xi'an Jiaotong University,
        • Contact:
          • Yongqin Li, MD
          • Phone Number: +86 13572107879
        • Principal Investigator:
          • Xi Li, MD

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years to 80 years (ADULT, OLDER_ADULT)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Clinical diagnosis of coronary artery disease;
  • Signed informed consent.

Exclusion Criteria:

  • Obvious aortic insufficiency;
  • Aortic aneurysm;
  • Aortic dissection;
  • Coronary fistula or severe coronary aneurysm;
  • Symptomatic Congestive heart failure;
  • Valvular heart disease;
  • Congenital heart diseases;
  • Cardiomyopathies
  • Cerebral hemorrhage within six months;
  • Uncontrolled hypertension, defined as SBP≥180mmHg or DBP≥110mmHg;
  • Lower limb infection;
  • Deep venous thrombosis;
  • Progressive malignancies

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: TREATMENT
  • Allocation: RANDOMIZED
  • Interventional Model: PARALLEL
  • Masking: DOUBLE

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
EXPERIMENTAL: External Counter Pulsation group
A standard ECP protocol involves 35 one-hour sessions (once per day, 5 days a week) and continuous for 7 weeks. ECP consists of three sets of pneumatic cuffs attached to each of the patient's legs at the calf and lower and upper thigh. The inflation of the cuffs is triggered by a computer, and timing of the inflation is based on the R wave of the electrocardiogram. The ECP therapist adjusts the inflation and deflation timing to provide optimal blood movement per a finger plethysmogram waveform reading.
Device: External Counter Pulsation
A standard ECP protocol involves 35 one-hour sessions (once per day, 5 days a week) and continuous for 7 weeks. ECP consists of three sets of pneumatic cuffs attached to each of the patient's legs at the calf and lower and upper thigh. The inflation of the cuffs is triggered by a computer, and timing of the inflation is based on the R wave of the electrocardiogram. The ECP therapist adjusts the inflation and deflation timing to provide optimal blood movement per a finger plethysmogram waveform reading.
NO_INTERVENTION: Control group
Guideline-driven standard medical treatment

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
composite cardiovascular events (CCE)
Time Frame: Change from Baseline at 1-year
Sudden cardiac death, angina pectoris after infarction, recurrent myocardial infarction；rehospitalization rate
Change from Baseline at 1-year

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Frequency of angina pectoris per week
Time Frame: Change from Baseline frequency at 1 year
Frequency of angina pectoris
Change from Baseline frequency at 1 year
Dosage of Nitroglycerin use per week
Time Frame: Change from Baseline frequency and dosage at 1 year
total dosage of nitroglycerin
Change from Baseline frequency and dosage at 1 year
6-minute walking distance
Time Frame: Change from Baseline distance at 1 year
6-minute walking distance
Change from Baseline distance at 1 year

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Eighth Affiliated Hospital, Sun Yat-sen University

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
Xiangya Hospital of Central South University
Shanghai 10th People's Hospital
Second Affiliated Hospital of Zhengzhou University
Second Affiliated Hospital of Xi'an Jiaotong University

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (ANTICIPATED)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
June 8, 2018

Primary Completion (ANTICIPATED)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
May 28, 2019

Study Completion (ANTICIPATED)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
June 30, 2019

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
February 28, 2017

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
March 8, 2017

First Posted (ACTUAL)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
March 9, 2017

Study Record Updates

Last Update Posted (ACTUAL)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
December 13, 2017

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
December 12, 2017

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
December 1, 2017

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • SYSU8001

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

UNDECIDED

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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