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Coronary Artery DiseaseSUPREMENCT03541577

Sensor-equipped Ultrathin Pressure Microcatheter Versus Pressure Wire for FFR Measurement

An observational study of Coronary Artery Disease and Coronary Disease, run by Insight Lifetech Co., Ltd. at 4 sites 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

TruePhysioTM Sensor-equipped Ultrathin Pressure Microcatheter (referred to as TruePhysioTM Microcatheter below) is a novel device for evaluating the functional significance of coronary stenosis. Read more about this study

Who is it for?
Ages 18 to 75 years
What is being tested?
TruePhysioTM Microcatheter and Pressure Wire
Type of treatment
Medical device
How many people
242 participants
Where
4 sitesChina
Study dates
19 Jun 2018to 31 Jan 2019
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 to 75 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: Patients with coronary artery disease for whom FFR measurement is thought to be clinically indicated.

Who may be able to join

None listed.

Who cannot join

  • General Exclusion Criteria:
  • Acute ST-elevation or non-ST-elevation myocardial infarction
  • Severe heart failure (NYHA≥IV)
  • Left ventricular ejection fraction <30%
  • Allergy to adenosine triphosphate (ATP)
  • Contraindications for percutaneous coronary intervention (PCI)
Show all 10Show fewer
  • Angiographic Exclusion Criteria:
  • Target vessel has angiographically visible or suspected thrombus
  • Angiographic evidence of a dissection
  • Excessive tortuosity or calcification stenosis, left main stenosis, serial stenosis

Trial locations and contacts

4 sites in 1 country.

China4 sites
  • Guangdong General Hospital

    Guangzhou

  • Second Affiliated Hospital, School of Medicine, Zhejiang University

    Hangzhou

  • Shanghai Zhongshan Hospital

    Shanghai

  • Shenzhen People's Hospital

    Shenzhen

Other trials in China

About this study

Official title: Sensor-equipped Ultrathin Pressure Microcatheter Versus Pressure Wire for FFR Measurement: A Multi-center Prospective Control Study

TruePhysioTM Sensor-equipped Ultrathin Pressure Microcatheter (referred to as TruePhysioTM Microcatheter below) is a novel device for evaluating the functional significance of coronary stenosis. This study will compare the differences, if any, between the coronary fractional flow reserve (FFR) measured by the TruePhysioTM Microcatheter and the Pressure Wire.

Read the detailed description

Many studies have reported that FFR-guided coronary revascularization leads to improved long-term clinical outcomes and reduced costs compared with angiography-guided coronary revascularization alone. Current guidelines emphasize the measurement of FFR as the standard of reference when determining the functional significance of coronary artery stenosis in stable patients when evidence of ischemia is not available (class IA indication). But FFR is still underutilized in clinical practice. One of the reasons may be the difficulty in manipulating the Pressure Wire.

TruePhysioTM Microcatheter is a novel device for evaluating the functional significance of coronary stenosis, which may simplify FFR measurements by allowing the use of standard guidewires best suited to negotiating the patients' anatomy. This study is a prospective, open label, multi-center study with the purpose of comparing the differences, if any, between FFR measured by the TruePhysioTM Microcatheter and Pressure Wire. The secondary purpose is to analyze the correlation between FFR measured by the TruePhysioTM Microcatheter and Pressure Wire. A total of 239 patients will be recruited at 4 centers in China.

Being tested
TruePhysioTM Microcatheter, Pressure Wire
Medical subject headings
Coronary Artery Disease, Coronary Disease, Myocardial Ischemia

What participants receive

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

  • TruePhysioTM MicrocatheterDevice

    Also called FFR Microcatheter

    Provide hemodynamic information for the diagnosis and treatment of coronary and peripheral artery disease. The system is intended for use in catheterization and related cardiovascular specialty laboratories to compute and display fractional flow reserve (FFR).

  • Pressure WireDevice

    Also called PressureWire

    Provide hemodynamic information for the diagnosis and treatment of coronary and peripheral artery disease. The system is intended for use in catheterization and related cardiovascular specialty laboratories to compute and display fractional flow reserve (FFR).

Study groups in NCT03541577
Study groupRoleWhat they receive
ParticipantsSubjects who meet the inclusion criteria and do not meet the exclusion criteria and undergo FFR measurement with the TruePhysioTM Microcatheter and the Pressure Wire
Receives: Device: TruePhysioTM Microcatheter; Device: Pressure Wire

What is being measured

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

  1. FFR Measurements

    Comparisons between the FFR measured by the TruePhysioTM Microcatheter and the Pressure Wire (PW), including bias, as assessed by Bland-Altman analysis.

    Measured: Duration of FFR measurement

Secondary outcomes (10)
  1. Pearson analysis

    Pearson analysis of paired FFR measurements by TruePhysioTM Microcatheter and PW.

    Measured: Duration of FFR measurement

  2. Slope of Passing-Bablok fit

    Slope of Passing-Bablok fit between paired FFR measurements by TruePhysioTM Microcatheter and PW.

    Measured: Duration of FFR measurement

  3. Intercept of Passing-Bablok fit

    Intercept of Passing-Bablok fit between paired FFR measurements by TruePhysioTM Microcatheter and PW.

    Measured: Duration of FFR measurement

  4. Diagnostic FFR concurrence of functionally significant stenosis

    Concurrence of TruePhysioTM Microcatheter FFR diagnostic accuracy of functionally significant stenosis, using PW FFR ≤0.80 as the reference.

    Measured: Duration of FFR measurement

  5. Sensitivity, Specificity of TruePhysioTM Microcatheter in determining functionally significant stenosis

    Sensitivity, Specificity of TruePhysioTM Microcatheter in determining functionally significant stenosis at the vessel level with PW FFR as the reference standard (PW FFR ≤0.80 as positive case).

    Measured: Duration of FFR measurement

  6. Device success rate

    Device success rate, defined as a valid FFR reading for each system, and comparison between the two systems.

    Measured: Duration of FFR measurement

  7. Mean drift

    Mean drift, defined as the absolute difference between Pd/Pa at the equalization position after pullback and 1.00, for each system, and comparison between the two systems.

    Measured: Duration of FFR measurement

  8. Rate of clinically significant drift

    Rate of clinically significant drift (drift >0.03), for each system, and comparison between the two systems.

    Measured: Duration of FFR measurement

  9. Rate of device-related adverse effects

    Rate of device-related adverse effects, for each system individually, and comparison between the two systems.

    Measured: Duration of FFR Procedure

  10. PW FFR measurements with TruePhysioTM Microcatheter across and not across lesion

    Comparisons between PW FFR measurements with TruePhysioTM Microcatheter across lesion and with TruePhysioTM Microcatheter not across lesion, including bias, as assessed by Bland-Altman analysis.

    Measured: Duration of FFR Procedure

Timeline

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

  1. First posted30 May 2018
  2. Study start19 Jun 2018
  3. Primary completion31 Jan 2019
  4. Study completion31 Jan 2019

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
Cohort
Time perspective
Prospective
Enrolment
242 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03541577
Sponsor's protocol ID
CTP17-001
Acronym
SUPREME
Status last verified
May 2022
First submitted
17 May 2018
Last updated
27 May 2022
Results posted
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Li C, Yang J, Dong S, Dong L, Chen J, Shen L, Zhang F, Li C, Liu H, Hu X, Hau WK, Qian J, Jeremias A, Wang J, Ge J; SUPREME Study Investigators. Multicenter clinical evaluation of a piezoresistive-MEMS-sensor rapid-exchange pressure microcatheter system for fractional flow reserve measurement. Catheter Cardiovasc Interv. 2021 Aug 1;98(2):E243-E253. doi: 10.1002/ccd.29678. Epub 2021 May 5.

    PubMed 33951285

Questions about this trial

What is this clinical trial studying?

An observational study of Coronary Artery Disease and Coronary Disease, run by Insight Lifetech Co., Ltd. at 4 sites 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 0 inclusion and 10 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 27 May 2022. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 4 sites 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?

FFR Measurements (time frame: Duration of FFR measurement). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT03541577, which also lists 1 linked publication.

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 27 May 2022.

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