Hemodynamic Change of Coronary Atherosclerotic Plaque After Evolocumab Treatment

April 19, 2021 updated by: Zibo Central Hospital

Hemodynamic Change of Coronary Atherosclerotic Plaque After Evolocumab Treatment: A Serial Follow-Up Study by Computed Tomography-Derived Fractional Flow Reserve

Compelling evidences indicate that lipid-lowering therapy can reduce the high-risk plaque feathers and improve the coronary flow reserve. This study is going to investigate the change of lesion-specific hemodynamic significance as determined by ML(Machine Learning)-based CT-FFR (Computed Tomography-Fractional Flow Reserve)after Evolocumab treatment.

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.

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.
Observational

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.
200

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
    • Shandong
      • Zibo, Shandong, China, 255036
        • Zibo Central Hospital

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 85 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Probability Sample

Study Population

A total of 200 eligible coronary atherosclerosis disease patients were anticipated to include in this study.

Description

Inclusion Criteria:

  • 1.baseline CCTA revealed at least one lesion with stenotic extent from 50% to 69% on major epicardial arteries (diameter ≧2 mm);
  • 2.patients were referred for optimal medical treatment;
  • 3.patients agreed to undergo follow-up CCTA at 1-year interval.

Exclusion Criteria:

  • 1.patients had previous history of myocardial infarction or coronary revascularization;
  • 2.patients were contraindicated to the usage of iodine contrast media;
  • 3.image quality of baseline or follow-up CCTA was severely impaired (in presence of severe artifact, non-diagnostic);
  • 4.patients withdrew the informed consents during follow-up;
  • 5.patients experienced major adverse cardiac events during follow-up;
  • 6.patients refused to undergo follow-up CCTA;
  • 7.lost follow-up

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

Cohorts and Interventions

Group / Cohort

Group / Cohort

A group or subgroup of participants in an observational study that is assessed for biomedical or health outcomes.
Enrolled Cohort
200 selected patients will be recruited, who have diagnosed with coronary atherosclerosis disease(stenotic extent from 50% to 69% on major epicardial arteries) by coronary computed tomography angiography(CCTA). Every two weeks, these patients will be treated with Elococumab Injection (1ml:140mg),ih.This therapy will last for one year.

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
the change of lesion-specific CT-FFR
Time Frame: June 2020 to December 2021
After one year's treatment of Elovocumab Injection, the patients will undergo follow-up CCTA again. We will measure the proximal and distal CT-FFR for each lesion.At the same time ,we will calculated the change in CT-FFR value across the lesion(ΔCT-FFR=CT-FFRproximal-CT-FFRdistal).To compare the parameters above,we shall identify whether the treatment of Elovocumab Injection improves the lesion-specific CT-FFR.
June 2020 to December 2021

Other Outcome Measures

Other Outcome Measures

For clinical trials, a planned measurement described in the protocol that is used to determine the effect of an intervention/treatment on participants. For observational studies, a measurement or observation that is used to describe patterns of diseases or traits, or associations with exposures, risk factors, or treatment. Types of outcome measures include primary outcome measure and secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
the change of minimal lumen diameter between baseline and follow-up CCTA
Time Frame: June 2020 to December 2021
After one year's treatment of Elovocumab Injection, the patients will undergo follow-up CCTA again. We will measure the minimal lumen diameter for each lesion. Minimal lumen diameter will be manually measured with a digital caliper at the narrowest level of the lesion using the crosssectional images accroding to the CCTA findings. The results of the minimal lumen diameter at baseline will be compared with results obtained during follow-up to examine the effects of Elovocumab Injection therapy.
June 2020 to December 2021
the change of total plaque volume (TPV) between baseline and follow-up CCTA
Time Frame: June 2020 to December 2021
After one year's treatment of Elovocumab Injection, the patients will undergo follow-up CCTA again. We will measure TPV for each lesion. Total plaque volume will be automatically measured using the dedicated plaque analysis software. The results of TPV at baseline will be compared with results obtained during follow-up to examine the effects of Elovocumab Injection therapy.
June 2020 to December 2021
the change of lesion length between baseline and follow-up CCTA
Time Frame: June 2020 to December 2021
After one year's treatment of Elovocumab Injection, the patients will undergo follow-up CCTA again. The length of lesion at baseline will be compared with results obtained during follow-up to examine the effects of Elovocumab Injection therapy.
June 2020 to December 2021

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.
Zibo Central Hospital

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Bo Li, Doctor, Zibo Central Hospital

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.
July 30, 2021

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.
December 31, 2022

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.
February 27, 2023

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).
May 30, 2020

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.
June 3, 2020

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.
June 4, 2020

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.
April 21, 2021

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.
April 19, 2021

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.
May 1, 2020

More Information

Terms related to this study

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.
  • ZiboCH

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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