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Covert Brain InfarctionPhase 3EURO-CBINCT07012629

A EUROpean Randomized Study on Blood-thinners and Cholesterol-lowering Treatments to Prevent Future Vascular Events in People With Covert Brain Infarcts (CBI)

A Phase 3 study testing acetylsalicyclic acid (ASA), Clopidogrel and Rosuvastatin in people with Covert Brain Infarction, run by Aarhus University Hospital at 14 sites in 5 countries.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
Search all trials

Trial summary

Magnetic resonance imaging (MRI) is commonly used in healthcare, and sometimes it shows small areas of brain damage called Covert Brain Infarcts (CBIs). These are usually found by chance when people have scans for things like headaches or dizziness. Read more about this study

Who is it for?
Ages 50 years and older
Conditions the study is for
Covert Brain Infarction
What is being tested?
acetylsalicyclic acid (ASA), Clopidogrel and Rosuvastatin
Could I receive a placebo?
No, everyone receives an active treatment
How many people
1,652 participants
Where
14 sitesin 5 countries
Study dates
26 Nov 2025to 1 Jan 2040
Phase
Phase 3
Are there results?
Not yet: the study is under way

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 50 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • MRI demonstrating a lacunar infarct (acute/subacute/chronic) without prior stroke/TIA symptoms. (A round or ovoid, subcortical, fluid-filled cavity (signal similar to cerebrospinal fluid (CSF)) between 3 and 15 mm in diameter and demonstrating a peripheral T2/FLAIR hyperintense rim of marginal gliosis. For infratentorial lesions the hyperintense rim may be less marked and a complete ring is not required) OR
  • MRI demonstrating a cortical infarct (acute/subacute/chronic) without prior stroke/TIA symptoms (A cortical infarct is defined as a fluid-filled cavity (signal similar to CSF) in the cortex, juxtacortical region or cerebellar cortex and with a ring of T2/FLAIR hyperintense lesions or as cortical T2/FLAIR lesions without a fluid-filled cavity with presumed vascular origin. Both supra- and infratentorial lesion will be included) AND Life expectancy > 12 months AND Predominantly independent in actives of daily living (mRS score ≤ 3) AND Age ≥ 50 years

Who cannot join

  • History of stroke/TIA
  • High risk of bleeding (e.g., recent or recurrent gastrointestinal or genitourinary bleeding associated with a decrease in hemoglobin levels of at least 1 mmol/L, active peptic ulcer disease, MRI with cortical siderosis and/or prior lobar hemorrhage)
  • Indication for long-term use of anticoagulants (e.g. deep vein thrombosis, pulmonary embolism, atrial fibrillation, and rarer indications; such as mechanical heart valve, antiphospholipid antibody syndrome etc.)
  • Concurrent indication for lipid-lowering treatment and/or platelet-inhibitors for secondary cardiovascular prevention (ischemic heart disease, recent stenting, ischemic stroke, revascularization surgeries, lower-extremity atherosclerotic arterial disease etc.)
  • Co-existing progressive neurodegenerative disease including dementia or Parkinson's disease.
  • Neoplastic condition that is uncontrolled or associated with an increased risk of bleeding
  • Patient already on antiplatelet or anticoagulation agent, regardless of indication
  • Women with a history of menopause below 12 months are only included after negative pregnancy test

Trial locations and contacts

14 sites in 5 countries. Contact the study team or a site near you to ask about taking part.

Rolf Blauenfeldt contact

+4529318244

rolfblau@rm.dk

Ida Thingholm Norup contact

+4520848978

idnoru@rm.dk

14 sites in 5 countries

Denmark10 sites, 10 recruiting
  • Aalborg Universitetshospital

    Aalborg, 9000

    Boris Modrau, +4597662239, boris.modrau@rn.dk

    Not yet recruiting
  • Aarhus Universitetshospital

    Aarhus, 8200

    Claus Simonsen, +45 50240543, clausimo@rm.dk

    Not yet recruiting
  • Aarhus University Hospital

    Aarhus, 8200

    Rolf Blauenfeldt, +4529318244, rolfblau@rm.dk

    Recruiting
  • Rigshospitalet

    Copenhagen, 2100

    Anders Sode West, +4538630220, anders.sode.west@regionh.dk

    Not yet recruiting
  • Bispebjerg og Frederiksberg Hospital

    Copenhagen, 2400

    Hanne Christensen, +4538635000, Hanne.Krarup.Christensen@regionh.dk

    Not yet recruiting
  • Herlev Hospital

    Herlev, 2730

    Anders Hougaard, +4538682790, anders.hougaard@regionh.dk

    Not yet recruiting
  • Regionshospitalet Gødstrup

    Herning, 7400

    Mohammed Ahmad Al-Jazi, +4578430000, moalja@rm.dk

    Not yet recruiting
  • Kolding Hospital

    Kolding, 6000

    Henrik Leth de Fønss, +4576302600, Henrik.Leth@rsyd.dk

    Not yet recruiting
  • Odense Universitetshospital

    Odense, 5000

    David Gaist, +4565504185, dgaist@health.sdu.dk

    Not yet recruiting
  • Roskilde Hospital

    Roskilde, 4000

    Troels Wienecke, +4547322808, trw@regionsjaelland.dk

    Not yet recruiting

Other trials in Denmark

Germany1 site, 1 recruiting
  • University Medical Center Hamburg-Eppendorf

    Hamburg, 20246

    Götz Thomalla, +4940741050137, thomalla@uke.de

    Not yet recruiting

Other trials in Germany

Norway1 site, 1 recruiting
  • Oslo University Hospital

    Oslo, 0450

    Anne Hege Aamodt, +4795867270, a.h.aamodt@medisin.uio.no

    Not yet recruiting

Other trials in Norway

Sweden1 site, 1 recruiting
  • Skånes Universitetssjukhus

    Lund, 22242

    Jesper Petersson, 0046406733000, Jesper.Petersson@skane.se

    Not yet recruiting

Other trials in Sweden

Switzerland1 site, 1 recruiting
  • Universitätsspital - Inselspital - University of Bern

    Bern, 3010

    Thomas Meinel, +41 76 4928 545, thomas.meinel@insel.ch

    Not yet recruiting

Other trials in Switzerland

About this study

Official title: A EUROpean Pragmatic Multicenter Randomized Trial on Platelet Inhibition and/or Lipid Lowering Treatment in Covert Brain Infarction (CBI)

Magnetic resonance imaging (MRI) is commonly used in healthcare, and sometimes it shows small areas of brain damage called Covert Brain Infarcts (CBIs). These are usually found by chance when people have scans for things like headaches or dizziness. Although CBIs don't cause symptoms at the time, they are linked to a higher risk of future stroke and death.

There is currently no standard treatment for CBIs, and doctors have different approaches-some give stroke-preventing medication (like antiplatelets or statins), while others don't treat at all. This is mostly because there isn't enough research yet.

This study will test whether stroke-preventing treatments help people with CBIs. It will also look at whether having a CBI increases the risk of dementia, and whether treatment might lower that risk.

Being tested
acetylsalicyclic acid (ASA), Clopidogrel, Rosuvastatin, Atorvastatin
Keywords
CBI, Prevention, Asymptomatic brain infarction, Dementia
Medical subject headings
Dementia

What participants receive

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

  • acetylsalicyclic acid (ASA)Drug

    Also called Aspirin

    Daily dose 75 mg to 100 mg p.o.

  • ClopidogrelDrug

    Daily dose 75 mg p.o.

  • RosuvastatinDrug

    Daily dose 20 mg p.o. (10 mg once daily for the first 4 weeks, then 20 mg once daily for the remainder of the study period if tolerated).

    If Rosuvastatin 20 mg is not tolerated, a dose reduction to 10 mg is allowed.

  • AtorvastatinDrug

    Daily dose 40 mg p.o. If Atorvastatin 40 mg is not tolerated, a dose reduction to 20 mg is allowed.

Study groups in NCT07012629
Study groupRoleWhat they receive
Group A: Platelet inhibitor - no Statin ("APT alone")ExperimentalAll patients will initiate treatment with Aspirin or Clopidogrel. The decision on which of the two drugs to initiate is at the discretion of the treating physician/center.
Receives: Drug: acetylsalicyclic acid (ASA); Drug: Clopidogrel
Group B: Statins - no Platelet inhibitor ("Statin alone").ExperimentalPatients will be treated with high-intensity statin therapy (Atorvastatin 40 mg once daily or Rosuvastatin 20 mg once daily)
Receives: Drug: Rosuvastatin; Drug: Atorvastatin
Group C: Statins - Platelet inhibitor ("APT AND statin")ExperimentalBoth types of medication are initiated as described in group A and B
Receives: Drug: acetylsalicyclic acid (ASA); Drug: Clopidogrel; Drug: Rosuvastatin; Drug: Atorvastatin
Group D: No Statins - no Platelet inhibitor (current standard treatment)No interventionThis group follows the current European recommendations of primary prevention which do not include statins and APT agents. If statins and/or platelet inhibitors are started during the study-period it should adhere to primary prevention guidelines. All four groups receive advice on lifestyle optimization and blood pressure management.

What is being measured

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

  1. Major Adverse Cardiac and Cerebral Events (MACCE) at 12 and 36 months

    MACCE are defined as the occurrence of any of the following events

    • All cause death: Death from any cause
    • Acute myocardial infarction: Admission with a discharge diagnosis of ST-elevation myocardial infarction (STEMI) and non-ST elevation myocardial infarction (NSTEMI) and
    • Stroke: AIS* or Intracerebral hemorrhage (non-traumatic) *Including Transient Ischemic Attack (TIA) with evidence of brain tissue infarction i.e. remission of symptoms within 24 hours but who have an acute ischemic lesion on diffusion weighted imaging MRI.

    All events qualifying for a MACCE event will be adjudicated by the Clinical event committee.

    Accepted timeframe for evaluation is +/- 30 days

    Measured: 12 months and 36 months post-randomization.

  2. Major and fatal bleeding at 12 and 36 months

    Major and fatal bleeding events are defined according to criteria established by the International Society on Thrombosis and Haemostasis (ISTH):

    • Fatal bleeding, and/or
    • Symptomatic bleeding in a critical area or organ, such as intracranial, intraspinal, intraocular, retroperitoneal, intra-articular, pericardial, or intramuscular with compartment syndrome, and/or
    • Bleeding leading to a drop in hemoglobin of ≥20 g/L (1.24 mmol/L), or requiring transfusion of two or more units of whole blood or red cells.

    All qualifying events will be adjudicated by an independent Clinical Event Committee (CEC).

    The accepted time window for assessment is ±30 days.

    Measured: 12 months and 36 months post-randomization.

Secondary outcomes (11)
  1. All-cause dementia

    Dementia is identified through phone contact and review of the patient's electronic health record, based on national diagnostic standards. Accepted diagnoses align with ICD-10 and ICD-11. ICD-10 codes include: dementia in Alzheimer's disease (F00.0-F00.9, DG30.0-DG30.9), vascular dementia (F01.0-F01.9, F00.2), dementia in other diseases classified elsewhere (F02.0-F02.8), unspecified dementia (F03.9), Lewy body dementia (DG31.8E), progressive isolated aphasia (DG31.0A), Pick disease (DG31.0B), and unspecified degenerative disease of the nervous system (DG31.9). ICD-11 codes include: dementia due to Alzheimer's disease (6D80), cerebrovascular disease (6D81), Lewy body disease (6D82), frontotemporal dementia (6D83), other specified diseases (6D85.Y), and dementia of unknown or unspecified cause (6D8Z). The accepted time window for evaluation is ±30 days.

    Measured: 12 months and 36 months post-randomization.

  2. Cardiovascular-related mortality

    Information about cardiovascular mortality is collected from telephone contacts and from the patient's electronic health record. See the table below for the definition of cardiovascular mortality.

    Cardiovascular Mortality are defined as:

    • Acute MI
    • Sudden cardiac death
    • Heart failure
    • Stroke: death as a direct consequence or complication of stroke
    • Cardiovascular procedure
    • Cardiovascular-related haemorrhage: non-stroke intracranial haemorrhage (subdural hematoma), non-procedural or non-traumatic vascular rupture (e.g. aortic aneurysm), or haemorrhage causing cardiac tamponade
    • Death due to other cardiovascular causes: a cardiovascular death not included in the above categories but with a specific, known cause (e.g., pulmonary embolism or peripheral arterial disease)

    Accepted time for evaluation is +/- 30 days

    Measured: 12 months and 36 months post-randomization.

  3. Cognitive decline

    A significant cognitive decline, defined as a ≥2-point reduction in Montreal Cognitive Assessment (MoCA) scores at 36 months.

    The participant's score on the full 12 item in-person MoCA (30 points) at the initial visit is compared to the scores on the telephone administrated Tele-MoCA (items from MoCA not requiring the use of a pencil and paper or visual stimulus, maximum of 22 points) after 12 and 36 months.

    Accepted time for evaluation is +/- 30 days

    Measured: After 12 months and a end of treatment at 36 months

  4. Serious adverse event (SAE)

    Information on SAEs will be reported by the investigators and recorded in the eCRF.

    Measured: From enrollment to the end of treatment at 36 months

  5. Baseline MRI risk markers, quantified using the ordinal simplified SVD-score (small vessel disease) score

    Simple SVD defined as score: Microbleeds: 0 microbleeds = 0 point; ≥ 1 microbleed = 1 point White matter hyperintensities (Fazekas): Fazekas 0-1 = 0 point; Fazekas 2-3 = 1 point. Lacunes: 0-2 lacunes = 0 point; >2 lacunes = 1 point. Total SVD score (range): 0-3.

    Measured: After 12 months and at the end of treatment at 36 months

  6. Physical activity levels

    Baseline physical activity levels are measured by the International Physical Activity Questionnaire (IPAQ).It yields a categorical score: low, moderate, or high level of physical activity. The follow-up assessment will be performed by staff from the enrolling site.

    Accepted time for evaluation is +/- 30 days

    Measured: At baseline

  7. Modified Rankin Scale (mRS) score

    The change in mRS score will be assessed to evaluate shifts in functional independence and disability over time. The mRS ranges from 0 to 6, with higher scores indicating worse outcomes. The follow-up assessment at 12 and 36 months will be performed by staff from the enrolling site.

    Accepted time for evaluation is +/- 30 days

    Measured: From baseline to 12 months and to the end of treatment at 36 months

  8. Clinical Frailty Scale (CFS) score

    The change in CFS score will be assessed from baseline to 12 and 36 months to evaluate the progression of frailty and its impact on functional status and overall health over time. It ranges from 1 to 9, with 1 indicating "very fit" and 9 indicating "terminally ill." The follow-up assessments at 12 and 36 months will be performed by staff from the enrolling site Accepted time for evaluation is +/- 30 days

    Measured: From baseline to 12 months and to the end of treatment at 36 months

  9. Barthel Index (BI) for Activities of Daily Living (ADL)

    The Barthel Index is a score that describes the degree of independence in relation to assistance from another person. It ranges from 0 to 100, with higher scores indicating greater independence. A score close to 100 reflects that the individual is self-sufficient, whereas lower scores indicate increasing dependence on others in daily activities. A score near 0 typically suggests that the individual is bedridden and requires help with all tasks.

    The follow-up assessments at 12 and 36 months will be performed by staff from the enrolling site.

    Accepted time for evaluation is +/- 30 days

    Measured: From enrollment to 12 months and to the end of treatment at 36 months

  10. Quality of life (EQ-5D)

    The descriptive system comprises five dimensions: mobility, self-care, usual activities, pain/discomfort and anxiety/depression. Each dimension has 5 levels: no problems, slight problems, moderate problems, severe problems and extreme problems. The patient is asked to indicate his/her health state by ticking the box next to the most appropriate statement in each of the five dimensions. This decision results in a 1-digit number that expresses the level selected for that dimension. The digits for the five dimensions can be combined into a 5-digit number that describes the patient's health state.

    The follow-up assessments at 12 and 36 months will be performed by staff from the enrolling site.

    Accepted time for evaluation is +/- 30 days

    Measured: From enrollment to 12 months and to the end of treatment at 36 months

  11. CBI subtype

    The CBI subtype and infarct appearance will be described by the enrolling physician, who has been trained to identify these findings on MRI.

    The baseline MRI will be visually graded by the investigators and the total SVD score calculated.

    The DICOM (Digital Imaging and Communications in Medicine) file containing the MRI will be downloaded and uploaded to the electronic case report form (eCRF) at redcap.au.dk, for later assessment by an imaging core lab.

    Measured: At baseline

Timeline

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

  1. First posted10 Jun 2025
  2. Study start26 Nov 2025
  3. Primary completion30 Sep 2031 (estimated)
  4. Study completion1 Jan 2040 (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 3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Factorial
Model description
2x2 factorial
Masking
Single blind
Who is masked
Outcomes assessor
Enrolment
1,652 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT07012629
Sponsor's protocol ID
2025-521452-30-01
Other IDs
2025-521452-30-01, 2025
Acronym
EURO-CBI
Status last verified
Nov 2025
First submitted
1 Jun 2025
Last updated
4 Dec 2025
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Yes: Individual participant data underlying the baseline screening visit and 3 years outcome can be shared after de-identification, upon reasonable request and proposals should be directed at the principal study investigator. To gain access to these data, data requestors will need to sign a data processing agreement. Further, anonymized data will be available through public databases such as the Zenodo open data repository (CERN) or other equivalent databases after trial completion.

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing acetylsalicyclic acid (ASA), Clopidogrel and Rosuvastatin in people with Covert Brain Infarction, run by Aarhus University Hospital at 14 sites in 5 countries.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 2 inclusion and 8 exclusion criteria. 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: looking for participants now, as of the sponsor's last update on 4 Dec 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 14 sites in Denmark, Germany, Norway, Sweden, Switzerland. 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.

What does this phase mean?

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact Rolf Blauenfeldt (+4529318244, rolfblau@rm.dk), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Major Adverse Cardiac and Cerebral Events (MACCE) at 12 and 36 months (time frame: 12 months and 36 months post-randomization.). The study lists 2 primary outcomes in all. 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 4 Dec 2025.

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