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Simultaneous Measurement of EpicArdial and Microvascular ResisTance Via Angiographic FLOW Study (SMARTFLOW)
Simultaneous Measurement of EpicArdial and Microvascular ResisTance Via Angiographic FLOW (SMARTFLOW) Study
The aim of this study is to establish the diagnostic performance of the AngioAI+ System (AngioInsight, Inc, USA) for estimating:
- Fractional flow reserve (FFR) and
- Detection of coronary microvascular disease (CMD)
SMARTFLOW is a prospective, single-arm, observational multicenter study of patients with suspected coronary artery disease (CAD) undergoing clinically indicated invasive coronary angiography with physiological assessment. The study is designed to prospectively enroll patient cohorts and collect data according to their reference procedures (e.g. FFR, CFR measures). A core lab will evaluate performance of the AngioAI+ software retrospectively using the collected SMARTFLOW study data. As such, the investigational AngioAI+ device will not inform clinical decisions amid the study procedure.
Studie Overzicht
Toestand
Gedetailleerde beschrijving
All patients will undergo clinically indicated invasive coronary angiography with physiological assessment according to standard of care.
Cohort 1: Patients with intermediate lesions (30-90% diameter stenosis) will undergo invasive FFR assessment. In patients with FFR >0.80 (non-flow limiting stenosis), subsequent assessment of the microcirculation with bolus and continuous thermodilution will be performed.
Cohort 2: Patients with non-obstructive (<30% stenosis) disease will undergo assessment of the microcirculation with bolus and continuous thermodilution.
For patients in Cohort 1 with FFR ≤0.80 undergoing percutaneous coronary interventions (PCI), FFR measurements after PCI will be recommended. Use of intravascular imaging will be strongly encouraged to guide PCI procedures, in accordance with current practice guidelines.
Studietype
Inschrijving (Geschat)
Contacten en locaties
Studiecontact
- Naam: Sr. VP Regulatory Affairs - AngioInsight
- Telefoonnummer: 16122675004
- E-mail: gzaeska@angioinsight.com
Studie Contact Back-up
- Naam: Project Manager - Cardiovascular Research Foundation
- E-mail: jungarten@crf.org
Studie Locaties
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California
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Palo Alto, California, Verenigde Staten, 94304
- Stanford University
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Hoofdonderzoeker:
- William Fearon, MD
-
Contact:
- Archana Verma, MD
- Telefoonnummer: 650-497-6299
- E-mail: varchana@stanford.edu
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Palo Alto, California, Verenigde Staten, 94304
- Palo Alto Veterans Administration Hospital
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Hoofdonderzoeker:
- William Fearon, MD
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Contact:
- Calvert Lee
- Telefoonnummer: 650-239-2808
- E-mail: CLee@pavir.org
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District of Columbia
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Washington D.C., District of Columbia, Verenigde Staten, 20010
- Washington Hospital Center
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Hoofdonderzoeker:
- Hayder Hashim, MD
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Contact:
- Eric Suchanec
- Telefoonnummer: 202-877-7207
- E-mail: eric.suchanec@medstar.net
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Minnesota
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Minneapolis, Minnesota, Verenigde Staten, 55407
- Minneapolis Heart
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Contact:
- Bavana Rangan
- Telefoonnummer: 612-863-3852
- E-mail: Bavana.Rangan@allina.com
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Hoofdonderzoeker:
- Yader Sandoval, MD
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New Jersey
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Paramus, New Jersey, Verenigde Staten, 07652
- Valley Health System
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Contact:
- Kimberly Michel
- Telefoonnummer: 201-447-8453
- E-mail: KMICHEL@Valleyhealth.com
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Hoofdonderzoeker:
- Rajiv Tayal, MD
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New York
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New York, New York, Verenigde Staten, 10016
- New York University
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Hoofdonderzoeker:
- Nathaniel Smilowitz, MD
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Contact:
- Manuela Plazas Montana
- Telefoonnummer: 917-921-6436
- E-mail: Manuela.PlazasMontana@nyulangone.org
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New York, New York, Verenigde Staten, 10075
- Northwell Health
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Contact:
- Virgenmina Lugaro
- Telefoonnummer: 212-434-6626
- E-mail: VLugaro@northwell.edu
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Hoofdonderzoeker:
- Michael C Kim, MD
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Ohio
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Cincinnati, Ohio, Verenigde Staten, 45219
- Christ Hospital
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Hoofdonderzoeker:
- Tim Henry, MD
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Contact:
- Rebecca Harper
- Telefoonnummer: 513-585-2000
- E-mail: RebeccaM.Harper@thechristhospital.com
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Tennessee
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Nashville, Tennessee, Verenigde Staten, 37205
- Ascension Saint Thomas
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Hoofdonderzoeker:
- Jimmy Kerrigan, MD
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Contact:
- Amelia Drennan
- Telefoonnummer: 615-222-3815
- E-mail: amelia.drennan@ascension.org
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Deelname Criteria
Geschiktheidscriteria
Leeftijden die in aanmerking komen voor studie
- Volwassen
- Oudere volwassene
Accepteert gezonde vrijwilligers
Bemonsteringsmethode
Studie Bevolking
Beschrijving
Inclusion Criteria:
- Patients with acute or chronic coronary syndromes referred for invasive coronary angiography with clinically indicated coronary physiologic assessment. In patients with acute coronary syndromes, the physiological evaluation will be restricted to non-culprit vessels.
- Patients with intermediate CAD (30-90% visual stenosis) with clinically indicated FFR assessment.
- Patients with NOCAD (<30% visual stenosis) with clinically indicated microvascular assessment.
Exclusion Criteria:
- Patients presenting with ST-elevation
- Prior myocardial infarction in the target vessel
- Stent implantation in the target vessel within the last 12 months
- Previous coronary artery bypass grafting surgery (CABG)
- Previous heart valve surgery
- Previous heart transplantation
- Moderate-to-severe valvular disease
- Left ventricular ejection fraction (EF) ≤45%
- Hemodynamic instability or cardiogenic shock
Angiographic Exclusion Criteria
- Left main stenosis≥50%
- Chronic total occlusion in the target vessel
- CTO in a non-target vessel
- Less than thrombolysis in myocardial infarction (TIMI) 3 flow in the target vessel
- Target vessel receiving collaterals
- Inadequate coronary angiographic images
- Ostial lesions
- Severe tortuosity
Studie plan
Hoe is de studie opgezet?
Ontwerpdetails
Cohorten en interventies
Groep / Cohort |
Interventie / Behandeling |
|---|---|
|
Cohort 1
Patients with intermediate coronary artery stenosis with clinically indicated invasive FFR assessment
|
Cohort 1. Patients with intermediate coronary artery stenosis (30-90% diameter stenosis) with clinically indicated FFR assessment.
|
|
Cohort 2
Symptomatic patients with non-obstructive coronary artery disease (NOCAD) with clinical indication for invasive coronary microvascular assessment
|
Cohort 2: Patients with non-obstructive (<30% stenosis) disease will undergo assessment of the microcirculation with bolus and continuous thermodilution.
|
Wat meet het onderzoek?
Primaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
|---|---|---|
|
To establish the diagnostic performance of the AngioAI+ System
Tijdsspanne: June 2026 to December 2027
|
1. Per-vessel diagnostic performance (i.e., sensitivity and specificity) of AngioAI+ FFR for identifying flow-limiting lesions, using measured FFR as the reference standard.
|
June 2026 to December 2027
|
|
To establish the diagnostic performance of AngioAI+ System
Tijdsspanne: June 2026 to December 2027
|
Description: 2. Diagnostic performance (i.e., sensitivity and specificity) of AngioAI+ for detecting CMD in patients with non-obstructive CAD using invasive coronary flow reserve (CFR) derived from continuous thermodilution as reference.
|
June 2026 to December 2027
|
Medewerkers en onderzoekers
Sponsor
Onderzoekers
- Hoofdonderzoeker: Carlos Collet, MD, PhD, Cardiovascular Research Foundation; OLV Aalst
- Hoofdonderzoeker: Todd C Villines, MD, University of Virginia
Studie record data
Bestudeer belangrijke data
Studie start (Geschat)
Primaire voltooiing (Geschat)
Studie voltooiing (Geschat)
Studieregistratiedata
Eerst ingediend
Eerst ingediend dat voldeed aan de QC-criteria
Eerst geplaatst (Werkelijk)
Updates van studierecords
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Laatste update ingediend die voldeed aan QC-criteria
Laatst geverifieerd
Meer informatie
Termen gerelateerd aan deze studie
Aanvullende relevante MeSH-voorwaarden
Andere studie-ID-nummers
- CSP-001
Plan Individuele Deelnemersgegevens (IPD)
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