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Coronary Covered Stents Implantation for the Treatment of Coronary Artery Perforation

A Prospective, Multicenter, Single-arm Trial of Coronary Covered Stents Implantation for the Treatment of Coronary Artery Perforation

Status
Recruiting
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05398991
Acronym
CONVOY
Enrollment
28
Registered
2022-06-01
Start date
2022-10-26
Completion date
2025-07-31
Last updated
2024-03-21

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

Conditions

Coronary Artery Perforation

Keywords

Coronary Artery Perforation

Brief summary

A clinical trial of Coronary Covered Stents System for the treatment of coronary artery perforation.

Detailed description

This is a pre-market clinical investigation aiming to evaluate the safety and effectiveness of Coronary Covered Stents System for the treatment of coronary artery perforation.

Interventions

DEVICEthe Coronary Covered Stents System manufactured by Shanghai MicroPort Medical (Group) Co., Ltd.

the Coronary Covered Stents System contains a covered stent and a delivery system

Sponsors

Shanghai MicroPort Rhythm MedTech Co., Ltd.
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

General Inclusion Criteria 1. Subjects aged ≥ 18 years. 2. Subjects with perforated coronary or aortic-coronary bypass graft vessels. 3. Subjects who are able to understand the purpose of the trial, participate voluntarily or by proxy and indicate by signing the informed consent form that they recognize the risks and benefits described in the informed consent document and are willing to undergo clinical follow-up. Angiography Inclusion Criteria 1. The lesion is a perforated coronary artery or aortic coronary bypass graft vessel of Ellis type I, type II or type III. 2. Reference vessel diameter from 2.5 mm to 4.0 mm. 3. According to the judgment of the investigator, the perforations require covered stent coverage and for which the covered stent can be delivered. 4. Up to one perforated lesion will be treated and up to one covered stent expected to be implanted. General

Exclusion criteria

1. Subjects who are unable to receive anticoagulation or antiplatelet therapy. 2. Subjects who are unable to tolerate 6 months of DAPT treatment. 3. Subjects who are allergic to aspirin, heparin, contrast agents, cobalt-based alloys (including metallic elements such as cobalt, chromium, nickel, and tungsten), or polytetrafluoroethylene. 4. According to the judgment of the investigator, subjects who are poorly compliant and unable to complete the study as required; or subjects who are otherwise deemed unsuitable for the enrollment. 5. Primary or secondary cryptogenic coronary perforation or bleeding. 6. Patients who are expected to require treatment with an adjunctive device such as IABP/ECMO. Angiographic

Design outcomes

Primary

MeasureTime frameDescription
Procedural SuccessDuring hospitalization (up to 7 days after procedure)Successful implantation of a coronary covered stent and sealing of the perforation with ≤30% diameter stenosis(visual inspection) and TIMI III with no blood spillage requiring urgent surgical intervention.

Secondary

MeasureTime frameDescription
Clinical SuccessDuring hospitalization (up to 7 days after procedure)on the basis of procedure success with no device-related composite endpoint events during hospitalization (up to 7 days after procedure)
Mortality1 month, 6 months, and 1 year postoperativelyMortality (Cardiac, cardiovascular, non-cardiovascular)
Myocardial Infarction1 month, 6 months, and 1 year postoperativelyAs per Myocardial Infarction (Fourth Universal Definition of Myocardial Infarction) types 1, 2 and 3 MI: have the clinical evidence of acute myocardial ischaemia and with detection of a rise and/or fall of cTn values with at least one value above the 99th percentile URL and at least one of the following: * Symptoms of myocardial ischaemia; * New ischaemic ECG changes; * Development of pathological Q waves; * Imaging evidence of new loss of viable myocardium or new regional wall motion abnormality in a pattern consistent with an ischaemic aetiology; * Identification of a coronary thrombus by angiography or autopsy (not for types 2 or 3 MIs). types 4 and 5 MI: Coronary procedure-related MI ≤ 48 hours after the index procedure is arbitrarily defined by an elevation of cTn values \> 5 times for type 4a MI and \> 10 times for type 5 MI of the 99th percentile URL in patients with normal baseline values.
Target Lesion Revascularization1 month, 6 months, and 1 year postoperativelyTarget Lesion Revascularization (ischemia-driven, non ischemia-driven)
Sealing SuccessIndex procedureNo residual blood spillage requiring urgent surgical intervention after successful release of the stent delivery system
Rate of emergency surgery or additional pericardial tamponade/puncture postoperatively1 month, 6 months, and 1 year postoperativelythe rate of events caused an emergency surgery, additional pericardial tamponade or puncture postoperatively
Stent thrombosis rate1 month, 6 months, and 1 year postoperativelys (by Academic Research Consortium \[ARC\] definitions)
AEs and SAEs1 month, 6 months, and 1 year postoperativelyAdverse Events and Severe Adverse Events
Target Vessel Revascularization1 month, 6 months, and 1 year postoperativelyTarget Vessel Revascularization (ischemia-driven, non ischemia-driven)

Countries

China

Contacts

Primary ContactRuifen Cao, M.M.
RuiFen.Cao@microport.com0086-021-38954600

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026