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Coronary Artery DiseaseNCT03803020

The Evaluation of Fractional Flow Reserve and D SPECT for the Intervention of Chronic Total Occlusion

An observational study of Coronary Artery Disease, run by Shanghai Zhongshan Hospital at 1 site in China.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

Coronary chronic total occlusions (CTOs) are defined as an occluded coronary vessel with TIMI defined as an occluded coronary vessel with TIMI (Thrombolysis in Myocardial Infarction) grade flow 0 and an estimated duration of at least 3 months. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Coronary Artery Disease
What is being tested?
fractional flow reserve and SPECT detection
How many people
150 participants
Where
1 siteChina
Study dates
Jan 2019to Dec 2021
How long will I take part?
1 Year
Phase
Observational
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 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: patients of single coronary chronic total occlusion

Who may be able to join

  • age >18 years old
  • single CTO lesions, or other stenosis have been PCI treated for more than one months
  • the diameter of target vessel ≥2.5mm
  • stable angina pectoris, or myocardial ischemia in the area of CTO lesions
  • the patients agree to this research plan and sign the consent form, and complete the follow-up

Who cannot join

  • Acute myocardial infarction in one month
  • In addition to the area of CTO lesions, there are serious untreated coronary lesions
  • bridge vascular CTO lesions
  • untreated coronary artery or cardiac surgery due to interventional complications, or intraoperative death
  • acute decompensated heart failure
  • allergies to contrast or radionuclide tracers
Show all 11Show fewer
  • patients with planned pregnancies or lactation or 1 years after intervention
  • malignant neoplasms or life expectancy of less than 1 years
  • patients plan of surgery
  • patients cannot tolerate double antiplatelet therapy for at least 12 months
  • any condition that does not fit coronary intervention or is a drug-eluting stent

Trial locations and contacts

1 site in 1 country.

China1 site
  • Zhongshan Hospital

    Shanghai, Shanghai Municipality, 200032

    junbo Ge, Doctor, +86-21-64041990, jbge@zs-hospital.sh.cn

    jianying Ma, Doctor, +8618616881653, ma.jianying@zs-hospital.sh.cn

Other trials in China

About this study

Coronary chronic total occlusions (CTOs) are defined as an occluded coronary vessel with TIMI defined as an occluded coronary vessel with TIMI (Thrombolysis in Myocardial Infarction) grade flow 0 and an estimated duration of at least 3 months. They are frequently encountered in patients undergoing coronary angiography. The application of contemporary techniques and the use of advanced dedicated equipment lead to high procedural success and low adverse events rates in experienced centers. Fractional flow reserve (FFR) is a validated tool to assess physiological severity of coronary artery disease and have a prognostic role after percutaneous coronary intervention (PCI). SPECT (Single-Photon Emission Computed Tomography) is the golden standard for detection of myocardial ischemia. Recanalization of a CTO leads to a number of anatomical and pathophysiological changes to the coronary circulation. These include anatomical and functional collateral vessels regression and significant lumen enlargement because of recovery of blood flow and restoration of vasomotor tone. The effect of PCI on CTO is unknown. The aim of this study was to assess the functional result of CTO PCI by measuring FFR and D SPECT before and immediately post-CTO PCI and at short-term follow-up.

Read the detailed description

Coronary chronic total occlusions (CTOs) are defined as an occluded coronary vessel with TIMI defined as an occluded coronary vessel with TIMI (Thrombolysis in Myocardial Infarction) grade flow 0 and an estimated duration of at least 3 months. They are frequently encountered in patients undergoing coronary angiography. The application of contemporary techniques and the use of advanced dedicated equipment lead to high procedural success and low adverse events rates in experienced centers. Fractional flow reserve (FFR) is a validated tool to assess physiological severity of coronary artery disease and have a prognostic role after percutaneous coronary intervention (PCI). SPECT (Single-Photon Emission Computed Tomography) is the golden standard for detection of myocardial ischemia. Recanalization of a CTO leads to a number of anatomical and pathophysiological changes to the coronary circulation. These include anatomical and functional collateral vessels regression and significant lumen enlargement because of recovery of blood flow and restoration of vasomotor tone. The effect of PCI on CTO is unknown. The aim of this study was to assess the functional result of CTO PCI by measuring FFR and D SPECT before and immediately post-CTO PCI and at short-term follow-up.

Being tested
fractional flow reserve and SPECT detection
Keywords
coronary artery disease, chronic total occlusion, fractional flow reserve, single-photon emission computed tomography
Medical subject headings
Coronary Artery Disease

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • fractional flow reserve and SPECT detectionOther

    fractional flow reserve and SPECT detection

Study groups in NCT03803020
Study groupRoleWhat they receive
single coronary chronic total occlusionsymptomatic stable angina of single coronary chronic total occlusion without other coronary artery stenosis scheduled for elective PCI. fractional flow reserve and SPECT detection before and after intervention.
Receives: Other: fractional flow reserve and SPECT detection

What is being measured

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

  1. score of Seattle angina questionnaire

    the result of Seattle angina questionnaire

    Measured: one year

  2. socre of Self-Rating Anxiety Scale

    result of socre of Self-Rating Anxiety Scale

    Measured: one year

  3. socre of EuroQol five dimensions questionnaire

    result of EuroQol five dimensions questionnaire

    Measured: one year

  4. Composite of cardiac death, target vessel myocardial infarction and target lesion revascularization record in follow-up

    Composite of cardiac death, target vessel myocardial infarction and target lesion revascularization record in follow-up

    Measured: one year

  5. the success rate of Percutaneous Coronary Intervention

    the success rate of Percutaneous Coronary Intervention

    Measured: one year

Secondary outcomes (3)
  1. rate of cardiac death rate

    rate of cardiac death rate in one year recorded in follow-up

    Measured: one year

  2. rate of target vessel revascularization rate

    rate of target vessel revascularization rate in one year recorded in follow-up

    Measured: one year

  3. rate of recurrent myocardial infarction rate

    rate of recurrent myocardial infarction rate in one year recorded in follow-up

    Measured: one year

Timeline

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

  1. First posted14 Jan 2019
  2. Study startJan 2019 (estimated)
  3. Primary completionDec 2021 (estimated)
  4. Study completionDec 2021 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Case only
Time perspective
Prospective
Enrolment
150 participants (estimated)
Target duration
1 Year
IDs, dates and publications
ClinicalTrials.gov ID
NCT03803020
Sponsor's protocol ID
SHDC12018X05
Status last verified
Jan 2019
First submitted
28 Dec 2018
Last updated
14 Jan 2019
Results posted
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

An observational study of Coronary Artery Disease, run by Shanghai Zhongshan 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 11 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: status not confirmed, as of the sponsor's last update on 14 Jan 2019. 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?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

Contact Shufu chang, Doctor (+8618616881731, chang.shufu@zs-hospital.sh.cn), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

score of Seattle angina questionnaire (time frame: one year). The study lists 5 primary outcomes in all. 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 14 Jan 2019.

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