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Coronary Artery PerforationCONVOYNCT05398991

Coronary Covered Stents Implantation for the Treatment of Coronary Artery Perforation

A study testing the Coronary Covered Stents System manufactured by Shanghai MicroPort Medical (Group) Co., Ltd. in people with Coronary Artery Perforation, run by Shanghai MicroPort Rhythm MedTech Co., Ltd. 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 The sponsor has not verified this record for over two years, so it may be out of date.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

A clinical trial of Coronary Covered Stents System for the treatment of coronary artery perforation. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Coronary Artery Perforation
What is being tested?
the Coronary Covered Stents System manufactured by Shanghai MicroPort Medical (Group) Co., Ltd.
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
28 participants
Where
1 siteChina
Study dates
26 Oct 2022to Jul 2025
Phase
Interventional
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

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 Exclusion Criteria

  1. anatomical structures proximal to the target lesion or within the lesion (e.g., severe tortuosity, etc.) that would obstruct delivery of the coronary covered stent.
  2. implantation of the covered stent may result in occlusion of a significant coronary branch relevant to the treatment.
  3. left or right coronary opening area or coronary sinus entrapment.
  4. balloon dilation can not relieve bleeding symptoms
  5. Subjects who need to implant two or more covered stents
  6. primary or secondary unexplained coronary perforation, or ≥ 2 perforation sites.
  7. Other conditions that are not suitable for covered stents treatment.

Trial locations and contacts

1 site in 1 country.

China1 site, 1 recruiting
  • The First Hospital of Jilin University

    Changchun, Jilin, 130061

    Qian Tong

    Qian Tong, M.D.

    Recruiting

Other trials in China

About this study

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

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

Read the 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.

Being tested
the Coronary Covered Stents System manufactured by Shanghai MicroPort Medical (Group) Co., Ltd.
Keywords
Coronary Artery Perforation

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

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

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

Study groups in NCT05398991
Study groupRoleWhat they receive
Experimental ArmExperimentalSubjects in experimental group will be implanted with the Coronary Covered Stents System manufactured by Shanghai MicroPort Medical (Group) Co., Ltd.
Receives: Device: the Coronary Covered Stents System manufactured by Shanghai MicroPort Medical (Group) Co., Ltd.

What is being measured

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

  1. Procedural Success

    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.

    Measured: During hospitalization (up to 7 days after procedure)

Secondary outcomes (9)
  1. Sealing Success

    No residual blood spillage requiring urgent surgical intervention after successful release of the stent delivery system

    Measured: Index procedure

  2. Clinical Success

    on the basis of procedure success with no device-related composite endpoint events during hospitalization (up to 7 days after procedure)

    Measured: During hospitalization (up to 7 days after procedure)

  3. Mortality

    Mortality (Cardiac, cardiovascular, non-cardiovascular)

    Measured: 1 month, 6 months, and 1 year postoperatively

  4. Myocardial Infarction

    As 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.

    Measured: 1 month, 6 months, and 1 year postoperatively

  5. Target Lesion Revascularization

    Target Lesion Revascularization (ischemia-driven, non ischemia-driven)

    Measured: 1 month, 6 months, and 1 year postoperatively

  6. Target Vessel Revascularization

    Target Vessel Revascularization (ischemia-driven, non ischemia-driven)

    Measured: 1 month, 6 months, and 1 year postoperatively

  7. Rate of emergency surgery or additional pericardial tamponade/puncture postoperatively

    the rate of events caused an emergency surgery, additional pericardial tamponade or puncture postoperatively

    Measured: 1 month, 6 months, and 1 year postoperatively

  8. Stent thrombosis rate

    s (by Academic Research Consortium [ARC] definitions)

    Measured: 1 month, 6 months, and 1 year postoperatively

  9. AEs and SAEs

    Adverse Events and Severe Adverse Events

    Measured: 1 month, 6 months, and 1 year postoperatively

Timeline

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

  1. First posted1 Jun 2022
  2. Study start26 Oct 2022
  3. Primary completionJul 2025 (estimated)
  4. Study completionJul 2025 (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 N/A
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
28 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05398991
Sponsor's protocol ID
D-MC-001
Acronym
CONVOY
Status last verified
Mar 2024
First submitted
20 May 2022
Last updated
21 Mar 2024
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A study testing the Coronary Covered Stents System manufactured by Shanghai MicroPort Medical (Group) Co., Ltd. in people with Coronary Artery Perforation, run by Shanghai MicroPort Rhythm MedTech Co., Ltd. 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?

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 21 Mar 2024. 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.

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?

Contact Ruifen Cao, M.M. (0086-021-38954600 ext. 8102, RuiFen.Cao@microport.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Procedural Success (time frame: During hospitalization (up to 7 days after procedure)). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 21 Mar 2024.

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