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Coronary Artery DiseasePhase 4PERFECTNCT01747317

Diagnostic Performance of Noninvasive Fractional Flow Reserve From Computed Tomography

A Phase 4 study testing FFR (PressureWire) in people with Coronary Artery Disease, run by Shanghai 10th People's 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 The sponsor has not verified this record for over two years, so it may be out of date.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

Fractional Flow Reserve derived from computed tomography(FFRCT) is a novel method for determining the physiologic significance of coronary artery disease (CAD), which will help physicians in clinical decision-making and decrease the medical cost, but its ability to identify patients with ischemia has not been… 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?
FFR (PressureWire)
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
300 participants
Where
1 siteChina
Study dates
Dec 2012to Apr 2013
Phase
Phase 4
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

Who may be able to join

  • Coronary computed tomographic angiography(CCTA) with over 50 percent stenosis in a major coronary artery over 2mm diameter
  • Undergoing clinically indicated invasive coronary angiography with FFR

Who cannot join

  • A history of CABG surgery
  • Prior percutaneous coronary intervention with suspected instent restenosis
  • Suspicion of or recent acute coronary syndrome
  • Complex congenital heart disease
  • Prior pacemaker or defibrillator
  • Prosthetic heart valve
Show all 18Show fewer
  • Significant arrhythmia
  • heart rate >100 beats/min
  • systolic blood pressure≤90 mmHg
  • contraindication to beta blockers, nitroglycerin or adenosine
  • Serum creatinine level greater than 1.5 mg per dL
  • Allergy to iodinated contrast
  • Pregnant state
  • Body mass index greater than 35
  • Evidence of active clinical instability or lifethreatening disease
  • Canadian Cardiovascular Society class IV angina
  • nonevaluable CCTA as determined by the CCTA core laboratory
  • Inability to adhere to study procedures

Trial locations and contacts

1 site in 1 country.

China1 site
  • Department of Cardiology, Shanghai Tenth People's Hospital

    Shanghai, 200072

Other trials in China

About this study

Official title: Individual-Patient-Data Pooled-Analysis of Diagnostic Accuracy of Noninvasive Fractional Flow Reserve From Anatomic CT Angiography

Fractional Flow Reserve derived from computed tomography(FFRCT) is a novel method for determining the physiologic significance of coronary artery disease (CAD), which will help physicians in clinical decision-making and decrease the medical cost, but its ability to identify patients with ischemia has not been adequately examined to date.

Read the detailed description

Fractional Flow Reserve derived from computed tomography(FFRCT) is a novel method for determining the physiologic significance of coronary artery disease (CAD), which will help physicians in clinical decision-making and decrease the medical cost, but its ability to identify patients with ischemia has not been adequately examined to date.

Available data from registered clinical trials has testified the diagnostic performance of FFRCT, but the diagnostic accuracy among them are not consistent.

Thus, the investigators designed a collaborative individual patient-data pooled-analysis aimed to assess the diagnostic accuracy of FFRCT and find the possible cause for inconsistency

Being tested
FFR (PressureWire)
Keywords
FFR, fractional flow reserve, CT, 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.

  • FFR (PressureWire)Device

    Also called PressureWire™ Certus(St. Jude Medical Systems), PressureWire™ Certus(ComboWire, Volcano Corporation)

    Fractional flow reserve measured during cardiac catheterization--A pressure-monitoring guidewire(PressureWire Certus, St. Jude Medical Systems, Uppsala, Sweden;ComboWire, Volcano Corporation, San Diego, California) will be advanced past the stenosis.

Study groups in NCT01747317
Study groupRoleWhat they receive
Single arm studyExperimentalSingle arm study.The investigators will conduct computed tomography,angiography and FFR measurement during angiography in this single arm.
Receives: Device: FFR (PressureWire)

What is being measured

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

  1. Diagnostic Accuracy of FFRCT

    Diagnostic accuracy[Sensitivity, specificity, positive predictive value (PPV) and negative predictive value (NPV)]* of FFRCT to determine presence or absence of at least one hemodynamically (HD)-significant coronary artery stenosis at the subject level using binary outcomes when compared to FFR as the reference standard..*Sensitivity measures the proportion of actual positives which are correctly identified. Specificity measures the proportion of negatives which are correctly identified;PPV, or precision rate is the proportion of positive test results that are true positives (such as correct diagnoses);NPV is defined as the proportion of subjects with a negative test result who are correctly diagnosed.

    Measured: 1 day

Secondary outcomes (3)
  1. Diagnostic accuracy of FFRCT at the subject level

    Sensitivity, specificity, positive predictive value (PPV) and negative predictive value (NPV) of FFRCT at the subject level using binary outcomes when compared to FFR as the reference standard.

    Measured: 1 day

  2. Diagnostic accuracy of FFRCT at the vessel level

    Sensitivity, specificity, PPV and NPV of FFRCT for the presence or absence of HD-significant coronary artery stenosis at the vessel level using binary outcomes when compared to FFR as the reference standard.

    Measured: 1 day

  3. FFR Numerical Correlation

    Per-vessel correlation of the FFRCT numerical value alone with the FFR numerical value measured during cardiac catheterization.

    Measured: 1 day

Timeline

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

  1. First posted11 Dec 2012 (estimated)
  2. Study startDec 2012
  3. Primary completionMar 2013 (estimated)
  4. Study completionApr 2013 (estimated)

Resources

More details

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

Study design
Study type
Interventional
Phase
Phase 4
Primary purpose
Diagnosis
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
300 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01747317
Sponsor's protocol ID
TENTH1010
Acronym
PERFECT
Status last verified
Dec 2012
First submitted
9 Dec 2012
Last updated
11 Dec 2012
Results posted
No
Data monitoring committee
Yes

Publications

  • Koo BK, Erglis A, Doh JH, Daniels DV, Jegere S, Kim HS, Dunning A, DeFrance T, Lansky A, Leipsic J, Min JK. Diagnosis of ischemia-causing coronary stenoses by noninvasive fractional flow reserve computed from coronary computed tomographic angiograms. Results from the prospective multicenter DISCOVER-FLOW (Diagnosis of Ischemia-Causing Stenoses Obtained Via Noninvasive Fractional Flow Reserve) study. J Am Coll Cardiol. 2011 Nov 1;58(19):1989-97. doi: 10.1016/j.jacc.2011.06.066.

    PubMed 22032711
  • Min JK, Leipsic J, Pencina MJ, Berman DS, Koo BK, van Mieghem C, Erglis A, Lin FY, Dunning AM, Apruzzese P, Budoff MJ, Cole JH, Jaffer FA, Leon MB, Malpeso J, Mancini GB, Park SJ, Schwartz RS, Shaw LJ, Mauri L. Diagnostic accuracy of fractional flow reserve from anatomic CT angiography. JAMA. 2012 Sep 26;308(12):1237-45. doi: 10.1001/2012.jama.11274.

    PubMed 22922562

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing FFR (PressureWire) in people with Coronary Artery Disease, run by Shanghai 10th People's 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 2 inclusion and 18 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 11 Dec 2012. 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.

What does this phase mean?

Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

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?

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?

Diagnostic Accuracy of FFRCT (time frame: 1 day). 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 NCT01747317, which also lists 2 linked publications.

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 11 Dec 2012.

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