NCT04665817

Brief Summary

To perform CT-QFR, invasive coronary angiography, FFR, and QFR tests on patients with moderate coronary stenosis after coronary CTA examination. Use FFR as a reference to verify the diagnostic performance of CT-QFR, and compare it with QFR.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
216

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Oct 2020

Typical duration for all trials

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

October 1, 2020

Completed
2 months until next milestone

First Submitted

Initial submission to the registry

December 7, 2020

Completed
7 days until next milestone

First Posted

Study publicly available on registry

December 14, 2020

Completed
1.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 30, 2022

Completed
3 months until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2022

Completed
Last Updated

January 25, 2022

Status Verified

January 1, 2022

Enrollment Period

2 years

First QC Date

December 7, 2020

Last Update Submit

January 10, 2022

Conditions

Keywords

coronary stenosiscoronary computed tomography angiographyhemodynamicsCT-QFRQFR

Outcome Measures

Primary Outcomes (1)

  • Diagnostic performance of CT-QFR

    Diagnostic accuracy of on-site CT-QFR in identifying physiologically significant coronary artery stenosis, using FFR as the reference standard. Presence of hemodynamically-significant coronary artery stenosis : FFR \<= 0.80.

    1.5 year

Secondary Outcomes (4)

  • Comparision between CT-QFR and QFR

    1.5 year

  • Other common measures of diagnostic performance of CT-QFR

    1.5 year

  • Correlation between CT-QFR and FFR

    1.5 year

  • The comparison between CT-QFR, CCTA-derived percent diameter stenosis (CTA-DS%) and QCA-derived DS%

    1.5 year

Interventions

CT-QFRDIAGNOSTIC_TEST

CT-QFR is a novel method for evaluating the functional significance of coronary stenosis. It is calculated by coronary computed tomographic angiography images.

Also known as: Fast Computational Approach to Derive Fractional Flow Reserve From Coronary CT Angiography
QFRDIAGNOSTIC_TEST

QFR is a novel method for evaluating the functional significance of coronary stenosis by calculation of the pressure drop in the vessel based on two. angiographic projections.

Also known as: Quantitative Flow Ratio
FFRDIAGNOSTIC_TEST

FFR measured by pressure wire is the gold standard for evaluating the functional significance of coronary stenosis.

Also known as: Fraction Flow Reserve

Eligibility Criteria

Age35 Years - 85 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Enrolled patients are adults with suspected CAD who underwent clinically indicated ICA after CT which indicates moderate coronary artery stenosis.

You may qualify if:

  • Coronary CT angiography indicates that \>= 1 stenosis with percent diameter stenosis between 30%-90% in a vessel \>= 2mm.
  • The invasive coronary angiography should be less than 30 days after the coronary CT angiography.

You may not qualify if:

  • The target lesion has received coronary stent implantation or coronary artery bypass graft.
  • Target lesion involves myocardial bridge.
  • Severe heart failure (NYHA ≥III).
  • Renal function is seriously damaged (eGFR\<30 ml/min/1.73m2).
  • Those who are contraindicated to use contrast agents, beta blockers, nitrates or adenosine drugs.
  • Acute myocardial infarction within 1 month.
  • The image quality of CTA or coronary angiography cannot be assessed.
  • Any factors that affect the image quality of coronary CTA and coronary angiography, such as frequent premature contractions, atrial fibrillation, etc.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Xinkai Qu

Shanghai, Shanghai Municipality, 200040, China

RECRUITING

Related Publications (2)

  • Weng T, Ding D, Li G, Guan S, Han W, Gan Q, Li M, Qi L, Li C, Chen Y, Zhang L, Li T, Chang X, Chen Y, Wijns W, Qu X, Tu S. Accuracy of coronary computed tomography angiography-derived quantitative flow ratio for onsite assessment of coronary lesions. EuroIntervention. 2024 Oct 21;20(20):e1288-e1297. doi: 10.4244/EIJ-D-24-00336.

  • Weng T, Gan Q, Li Z, Guan S, Han W, Zhai X, Li M, Qi L, Li C, Chen Y, Zhang L, Chang X, Tu S, Qu X. Diagnostic accuracy of CCTA-derived versus angiography-derived quantitative flow ratio (CAREER) study: a prospective study protocol. BMJ Open. 2022 Jun 23;12(6):e055481. doi: 10.1136/bmjopen-2021-055481.

MeSH Terms

Conditions

Coronary StenosisCoronary Artery Disease

Condition Hierarchy (Ancestors)

Coronary DiseaseMyocardial IschemiaHeart DiseasesCardiovascular DiseasesVascular DiseasesArteriosclerosisArterial Occlusive Diseases

Study Officials

  • Xinkai Qu, MD,PhD

    Huadong Hospital, Department of Cardiology

    PRINCIPAL INVESTIGATOR
  • Tingwen Weng, MD

    Huadong Hospital, Department of Cardiology

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Huadong Hospital, Department of Cardiology

Study Record Dates

First Submitted

December 7, 2020

First Posted

December 14, 2020

Study Start

October 1, 2020

Primary Completion

September 30, 2022

Study Completion

December 31, 2022

Last Updated

January 25, 2022

Record last verified: 2022-01

Data Sharing

IPD Sharing
Will not share

Locations