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Clinical Trial Details — Status: Recruiting

Administrative data

NCT number NCT05694065
Other study ID # 20221110025331724
Secondary ID
Status Recruiting
Phase
First received
Last updated
Start date February 17, 2023
Est. completion date June 30, 2024

Study information

Verified date January 2023
Source Ruijin Hospital
Contact Fenghua Ding, MD, PhD
Phone +86 21 64370045
Email ruijindfh@126.com
Is FDA regulated No
Health authority
Study type Observational

Clinical Trial Summary

Investigating the diagnostic accuracy of online Ultrasonic Flow Ratio (UFR) assessment to identify hemodynamically significant coronary stenosis in patients with suspected ischemic heart disease using angiography-derived fractional flow reserve (FFR) as a reference standard.


Description:

This is a prospective, single-center, observational registry study of patients with suspected ischemic coronary artery disease. The purpose of this registry is to investigate the accuracy of online UFR assessment to identify hemodynamically significant coronary stenosis in patients with suspected ischemic heart disease using angiography-derived FFR as a reference standard. Study population and sample size calculation are based on the diagnostic performance of previous studies, where an accuracy of 92% was found for UFR. Investigators conservatively estimate the diagnostic accuracy of online UFR assessment as 90% for consecutively enrolled patient population, and with a test target value set as 78% at a two-side significance level of 0.05, statistical power as 90%. Considering incomplete FFR/UFR data of 10% at most, a total of 112 patients need to be enrolled.


Recruitment information / eligibility

Status Recruiting
Enrollment 112
Est. completion date June 30, 2024
Est. primary completion date December 31, 2023
Accepts healthy volunteers No
Gender All
Age group 18 Years and older
Eligibility Inclusion Criteria: - Subject must be = 18 years - Patients suspected with ischemic heart disease - = 1 diseased vessel with angiographic percent diameter stenosis between 40% and 80% in a vessel = 2.5mm by visual estimation - Target vessels are limited to major epicardial coronary arteries (left anterior descending artery [LAD], left circumflex artery [LCX], right coronary artery [RCA]) Exclusion Criteria: - Patients with previous coronary artery bypass grafting (CABG) - Myocardial infarction within 72h of coronary angiography - Allergy to the contrast agent or adenosine - Left main coronary artery stenosis = 50% - Target vessel with in-stent restenosis - Target vessel with severe tortuosity or angulation - 100% occlusion of target vessel - Target vessel spasm or injury - Target vessel with severe myocardial bridge - Target vessel with severe thrombosis - Intravascular ultrasound (IVUS) pullback fails to cover the complete target lesion - Presence of false lumen at target vessel based on IVUS - A serum creatinine level >150 umol/l, or a glomerular filtration rate < 45 ml/kg/1.73 m^2 - Heart failure - Ineligible for diagnostic intervention (IVUS or FFR examination)

Study Design


Locations

Country Name City State
China Ruijin Hospital, Shanghai Jiao Tong University School of Medicine Shanghai Shanghai

Sponsors (1)

Lead Sponsor Collaborator
Ruijin Hospital

Country where clinical trial is conducted

China, 

Outcome

Type Measure Description Time frame Safety issue
Primary Diagnostic accuracy of online UFR as compared with FFR The diagnostic accuracy of online UFR assessment to identify hemodynamically significant coronary stenosis with FFR as the reference standard. baseline
Secondary Sensitivity and specificity of online UFR as compared with minimum lumen area (MLA) The superiority in sensitivity and specificity for online UFR in comparison to MLA, when using FFR as a golden standard. baseline
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