NCT07676097Enrolling by invitation
Simultaneous Measurement of EpicArdial and Microvascular ResisTance Via Angiographic FLOW Study
Simultaneous Measurement of EpicArdial and Microvascular ResisTance Via Angiographic FLOW (SMARTFLOW) Study
Source: ClinicalTrials.gov · Last updated 2 Nov 2026
Brief summary (registry, in English)
The aim of this study is to establish the diagnostic performance of the AngioAI+ System (AngioInsight, Inc, USA) for estimating: 1. Fractional flow reserve (FFR) and 2. 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.
- Status (registry)
- Enrolling by invitation
- Study type
- Observational
- Enrollment
- 620 (estimated)
- First submitted
- 24 Jun 2026
- Start date
- 28 Jul 2026
- Primary completion date
- Dec 2027
- Lead sponsor
- AngioInsight
- Diseases
- Coronary artery disease
- NCT number
- NCT07676097
What you commit to
- Study type: Observational
- Planned participants: 620
- From 28 Jul 2026 to the primary completion date, Dec 2027
- 14 sites in 2 countries
- Visits and tests: ask the trial team, the registry does not list them
Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.
Who cannot take part
Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.
Prior treatment
- Prior myocardial infarction in the target vessel
- Previous coronary artery bypass grafting surgery (CABG)
- Previous heart valve surgery
- Previous heart transplantation
- Target vessel receiving collaterals
Other illness
- Moderate-to-severe valvular disease
- Less than thrombolysis in myocardial infarction (TIMI) 3 flow in the target vessel
Lab values
- Left ventricular ejection fraction (EF) ≤45%
Other
- Patients presenting with ST-elevation
- Stent implantation in the target vessel within the last 12 months
- 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
- Inadequate coronary angiographic images
- Ostial lesions
- Severe tortuosity
Who the study is looking for
- 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.
Age in the registry: 18 years to - · Sex: All · Does not accept healthy volunteers
Sites (14)
Sites in registry order. Pick your city on the disease page to sort them by distance.
| Site | City | Country | Site status |
|---|---|---|---|
| Essex Cardiothoracic Centre Coordinator of this site? Confirm its status | Basildon | United Kingdom | Unknown status |
| St Thomas' Hospital, Guy's and St Thomas' NHS Foundation Trust Coordinator of this site? Confirm its status | London | United Kingdom | Unknown status |
| Royal Brompton Royal Brompton Hospital part of Guy's and St Thomas NHS Foundation Trust Coordinator of this site? Confirm its status | London | United Kingdom | Unknown status |
| Imperial College Healthcare NHS Trust Coordinator of this site? Confirm its status | London | United Kingdom | Unknown status |
| Christ Hospital Coordinator of this site? Confirm its status | Cincinnati | United States | Unknown status |
| Minneapolis Heart Coordinator of this site? Confirm its status | Minneapolis | United States | Unknown status |
| Ascension Saint Thomas Coordinator of this site? Confirm its status | Nashville | United States | Unknown status |
| Columbia University Medical Center/ NewYork Presbyterian Hospital Coordinator of this site? Confirm its status | New York | United States | Unknown status |
| Northwell Health Coordinator of this site? Confirm its status | New York | United States | Unknown status |
| New York University Coordinator of this site? Confirm its status | New York | United States | Unknown status |
| Stanford University Coordinator of this site? Confirm its status | Palo Alto | United States | Unknown status |
| Palo Alto Veterans Administration Hospital Coordinator of this site? Confirm its status | Palo Alto | United States | Unknown status |
| Valley Health System Coordinator of this site? Confirm its status | Paramus | United States | Unknown status |
| Washington Hospital Center Coordinator of this site? Confirm its status | Washington D.C. | United States | Unknown status |
This page is information, not medical advice. Discuss any trial with your doctor.