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IMPact on Revascularization Outcomes of IVUS Guided Treatment of Complex Lesions and Economic Impact

IMPact on Revascularization Outcomes of intraVascular Ultrasound Guided Treatment of Complex Lesions and Economic Impact (IMPROVE)

Status
Active, not recruiting
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04221815
Acronym
IMPROVE
Enrollment
3100
Registered
2020-01-09
Start date
2020-10-14
Completion date
2027-09-30
Last updated
2025-09-12

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Atherosclerosis

Brief summary

Intravascular ultrasound (IVUS)-guided percutaneous coronary intervention (PCI) has been shown in clinical trials, registries, and meta-analyses to reduce recurrent events after PCI. This is accomplished by improving the angiographic result with lesion and vessel assessment to guide stent selection and implantation and intravascular imaging following stent implantation to ensure an adequate treatment endpoint has been achieved. Despite extensive literature supporting the use of IVUS in PCI, utilization remains low in the United States. An increasing number of high-risk or complex lesions are being treated with PCI and we hypothesize that the impact of IVUS in these complex lesions will be of increased importance in reducing clinical adverse events while remaining cost effective.

Detailed description

This is a prospective, single-blind clinical investigation randomizing subjects to IVUS-guided coronary stent implantation vs. angiography-guided coronary stent implantation in a 1:1 ratio. The clinical investigation will be conducted at approximately 120 centers in the US, Canada, and Europe. Approximately 2,500-3,100 randomized subjects and up to 3 roll-in subjects per site will be enrolled in this study. Subjects participating in this clinical investigation will be followed for 2 years. The expected duration of enrollment is approximately 2.5 years. The total duration of the clinical investigation is expected to be approximately 4.5 years.

Interventions

DEVICEEagle Eye Platinum digital IVUS catheter with optional SyncVision

IVUS catheter

DEVICEResolute Onyx Drug Eluting Stent

Stent

DEVICEOnyx Frontier Drug Eluting Stent

Stent

DEVICEOnyx TruStar Drug Eluting Stent

Stent

DEVICEOnyx TruCor Drug Eluting Stent

Stent

Sponsors

Medstar Health Research Institute
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Subject)

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Age ≥ 18 years at screening * PCI with stent implantation involving a high risk or complex lesion defined as involving at least one of the following characteristics: * Chronic total occlusion * In-stent restenosis * Severe coronary artery calcification * Long lesion (≥ 28 mm in length) * Bifurcation lesion (Any Medina class that involves main branch disease with a side branch ≥2.0 mm) * Stable angina, unstable angina, or non-ST Elevation myocardial infarction (NSTEMI), undergoing PCI of a single or multivessel coronary artery stenosis * PCI performed with either angiography alone, or IVUS guidance used

Exclusion criteria

* Subjects with acute ST elevation myocardial infarction (STEMI), or cardiogenic shock * Use of fibrinolytic therapy within 24 hours of PCI * Planned revascularization of a target vessel as a staged procedure * Stent thrombosis * Use of optical coherence tomography (OCT) during the index procedure

Design outcomes

Primary

MeasureTime frameDescription
IVUS core lab measures final PCI Minimum Stent AreaIntra-proceduralThe imaging primary endpoint is the final post-PCI minimum stent area (MSA) assessed by IVUS in each randomized arm, measured at an independent IVUS core laboratory blinded to treatment assignment. The MSA is an appropriate co-primary imaging endpoint as it is the most consistent and strongest parameter to predict clinical outcomes.11-14 In the present study, after 2,000 subjects are enrolled with the procedure completed, the primary endpoint of MSA will be tested to compare the IVUS-guided and angiography-guided arms. If significantly larger MSA in the IVUS-guided arm is demonstrated, the trial will continue enrolling subjects.
Target vessel failure (TVF) outcomes at 12 months defined as the composite of cardiac death, target vessel related-myocardial infarction (MI), and ischemia-driven target vessel revascularization.12 monthsThe clinical primary endpoint is target vessel failure (TVF) outcomes at 12 months defined as the composite of cardiac death, target vessel related- myocardial infarction (MI), and target vessel revascularization.

Countries

Cyprus, Germany, Greece, Israel, Italy, Sweden, United Kingdom, United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 26, 2026