ClinicalTrials.gg
RecruitingNCT05257161SIBERIA-2Updated Feb 25, 2022

Carotid Revascularization With MicroNet Covered Stent Comparing Early Neurological Outcomes With Distal Versus Proximal EPS

An interventional study of Emboshield NAV6™ and Mo.Ma™ in Patients With Aterosclerotic Carotid Stenosis, Symptomatic Patients (Stenosis > 50%) and Asymptomatic Patients (Stenosis ≥80%), sponsored by Meshalkin Research Institute of Pathology of Circulation. Recruiting at 1 site in Russian Federation. Open to participants aged 45 Years to 80 Years. Per ClinicalTrials.gov, last updated 2022-02-25.

Sponsored by Meshalkin Research Institute of Pathology of Circulation · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Registered 3 months after the study started (first participant enrolled Nov 2021, registered Feb 2022).
  • Started Nov 2021; still recruiting 5 years later.
Phase
Not applicable
Study type
Interventional
Enrollment
366
Allocation
Randomized
Ages
45 Years to 80 Years
Sex
All
01

Study summary

The SIBERIA study demonstrated a clear advantage of CGuard stent implantation over the existing classical stent when using a distal anti-embolic device. At the same time, there is no Level 1 evidence for a difference between the proximal and distal anti-embolic device for the CGuard stent.

02

Conditions studied

  • Patients With Aterosclerotic Carotid Stenosis
  • Symptomatic Patients (Stenosis > 50%)
  • Asymptomatic Patients (Stenosis ≥80%)

Keywords

  • Carotid artery stenting. CGuard stent. Protection Device.
03

In context

Carotid Stenosis

364 studies on the registry are indexed under Carotid Stenosis; 85 are open to participants now.

This study's planned enrollment of 366 is above the median of 103 across 189 interventional studies indexed under Carotid Stenosis.

Browse Carotid Stenosis studies →

Lead sponsor

Meshalkin Research Institute of Pathology of Circulation is the lead sponsor of 119 studies on the registry; 9 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
45 Years to 80 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  1. Consecutive patients 45-80 years old accepted for CAS following neurological consultation and qualification for the procedure according to center's routine practice.
  2. More than 6-month
  3. Suitable clinical conditions for performing DW-MRI
  4. Written approved by the Ethics Committee
  5. Subject agrees to all required follow-up procedures and visits

Exclusion criteria

Exclusion Criteria:

  1. Currently enrolled in another device or drug study that has not completed the study or that clinically interferes with the current study endpoints
  2. Recent surgical procedure within 30-days before or planned surgery within 30-days after the stenting procedure
  3. Hepatic active disease (> 35 mmol / l) or renal insufficiency (serum creatinine > 2.5 mg/dL or \<60 ml / min)
  4. Recent evolving acute stroke within 30-days of study evaluation
  5. Myocardial infarction within 72 hours prior to carotid stenting procedure (CPK-MB > 3 times normal)
  6. Female patients of or known to be pregnant
  7. Any known factor for potential stroke other than carotid stenosis, such as atrial fibrillation or atrial flutter (paroxysmal, permanent or persistent) or thrombophilia
  8. Patient on VKA or new oral anticoagulants
Terms in these criteria, in plain language(6)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Life expectancy

The study doctor’s estimate of how long someone is likely to live. Criteria use it so that people can stay in the study long enough for it to answer its question.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

Bilirubin

A yellow substance made when red blood cells are broken down, which the liver clears. A high level can mean a problem with the liver or the bile ducts.

Criteria often allow more for people with Gilbert’s syndrome, a harmless inherited condition that raises bilirubin.

GFR and eGFR (kidney filtering)

GFR (glomerular filtration rate) is how much blood the kidneys filter each minute. It is usually estimated from a blood test — eGFR, by formulas such as CKD-EPI or MDRD — and some studies ask for it to be measured directly instead. Usually given in mL/min/1.73 m².

Check the method, the units and the minimum the study states. A value of 90 or above is in the normal-or-high range, but kidney damage can show in other tests too.

Childbearing potential

Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).

Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
366 participants (estimated)

Study arms

  • Active comparator
    Emboshield NAV6™ Embolic Protection System + CGuard™ (The CGuardTM Embolic Prevention System (EPS))

    183 Carotid stenting (Emboshield NAV6™ Embolic Protection System + CGuard™ (The CGuardTM Embolic Prevention System (EPS))

    Device: Emboshield NAV6™

  • Experimental
    MO.MA Proximal Cerebral Protection Device+ CGuard™ (The CGuardTM Embolic Prevention System (EPS)

    183 Carotid stenting (MO.MA Proximal Cerebral Protection Device+ CGuard™ (The CGuardTM Embolic Prevention System (EPS))

    Device: Mo.Ma™

Interventions

  • DeviceEmboshield NAV6™

    Embolic Protection System for Carotid Artery Revascularization ( distal - filter) + stent CGuardTM™

    Also known as: Emboshield NAV6™ Embolic Protection System

  • DeviceMo.Ma™

    Embolic Protection System for Carotid Artery Revascularization ( proximal - occlusion) + stent CGuardTM™

    Also known as: Mo.Ma™ proximal cerebral protection device

06

What researchers measure

Primary outcomes

  1. determination of ischemic lesions

    Postprocedural acute ischemic lesions (MRI)

    Time frame: 24-48 hours

Secondary outcomes

  1. MACCE

    Death, stroke, and MI

    Time frame: Intraoperatively, and within 48 hours.

07

Study locations

1 of 1 sites recruiting
  • E. Meshalkin National Medical Research Center
    Novosibirsk, Russian Federation
    Recruiting
08

References and documents

Publications

  • Montorsi P, Caputi L, Galli S, Ravagnani PM, Teruzzi G, Annoni A, Calligaris G, Fabbiocchi F, Trabattoni D, de Martini S, Grancini L, Pontone G, Andreini D, Troiano S, Restelli D, Bartorelli AL. Carotid Wallstent Versus Roadsaver Stent and Distal Versus Proximal Protection on Cerebral Microembolization During Carotid Artery Stenting. JACC Cardiovasc Interv. 2020 Feb 24;13(4):403-414. doi: 10.1016/j.jcin.2019.09.007. Epub 2020 Jan 29. PubMed 32007460 ↗

Related links

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Feb 25, 2022, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05257161
Collaborators
Federal State Budgetary Institution, V. A. Almazov Federal North-West Medical Research Centre, of the Ministry of Health, Chelyabinsk Regional Clinical Hospital
Responsible party
Sponsor
First posted
Feb 25, 2022
Start date
Nov 1, 2021
Primary completion
Nov 1, 2026 (estimated)
Completion
Jan 1, 2027 (estimated)
Last update
Feb 25, 2022

Study contacts

Andrey A Kaprenko, MD
Contact
a_karpenko@meshalkin.ru
+79139504100

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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