Clinical trial Recruiting at 47 sites Observational Ages 18 and up

Understanding Ischemic Stroke in Patients Taking Blood Thinners

Official title: Advancing Knowledge in Ischemic Stroke Patients on Oral Anticoagulants - The ASPERA International Registry

Run by University of L'Aquila · NCT06823466 · Data updated 2026-11-12

This study looks at how ischemic strokes affect people taking blood thinners for heart issues to see what helps prevent future strokes.

Quick facts

Study typeObservational
Ages18 Years and up
SexAll
Enrollment200 (estimated)
SponsorUniversity of L'Aquila
Academic / other
Locations47 sites (Zagreb and 46 other locations)
StatusRecruiting
StartedFebruary 12, 2025
Main results expectedFebruary 12, 2027
Study endsFebruary 12, 2031
Registry record updatedFebruary 20, 2025
Trial IDNCT06823466 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates include adults aged 18 and older who have experienced an ischemic stroke while on oral anticoagulation.

Probably not a fit

Patients who have not experienced an ischemic stroke or are not on oral anticoagulation may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

The ASPERA study investigates the characteristics and outcomes of ischemic stroke cases in patients who are on oral anticoagulation for atrial fibrillation or other cardioembolic arrhythmias. This multicenter, observational study collects both retrospective and prospective data from acute ischemic stroke patients worldwide. It aims to assess the short and long-term outcomes associated with various secondary prevention strategies to prevent stroke recurrences. The study is coordinated by the University of L'Aquila and involves multiple emergency services and stroke units.

Why it matters

Potential benefit: If successful, this study could lead to improved strategies for preventing recurrent strokes in patients on anticoagulants.

How similar studies have gone: Other studies have explored similar topics, but the specific focus on ischemic stroke in patients on oral anticoagulation represents a novel approach.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Age ≥18 years at the time of the index ischemic stroke.
* Confirmed diagnosis of ischemic stroke according to the World Health Organization (WHO) definition.
* Availability of at least one neuroimaging exam (either a non-contrast computed tomography \[NCCT\] or magnetic resonance imaging \[MRI\] of the brain) demonstrating one or more ischemic lesions consistent with patient symptoms.
* Ongoing oral anticoagulation at the time of the index ischemic stroke, defined as the last intake within 48 hours prior to stroke symptom onset for patients on direct oral anticoagulants (DOACs), or an international normalized ratio (INR) of ≥1.5 in patients on vitamin K antagonists (VKAs), regardless of the time elapsed between the last intake and stroke symptom onset.
* Prior diagnosis of AF or other cardioembolic arrhythmias.

Exclusion Criteria:

* Symptoms not indicative of acute stroke (i.e., syncope, tonic or clonic activity, dizziness alone, confusion and amnesia alone, chronic or subacute development of focal neurological deficit).
* Ongoing parenteral (intravenous or subcutaneous) anticoagulation at the time of the index event, including bridging with heparin in patients initiating VKA.

Where it's running

  • Department of Neurology, Sveti Duh University Hospital
    Zagreb, Croatia
    Recruiting
  • Copenhagen University Hospital, Bispebjerg Hospital
    Copenhagen, Denmark
    Recruiting
  • Neurology Department, Assiut University Hospitals
    Asyut, Egypt
    Recruiting
  • Neurology Department, Faculty of Medicine , Ain Shams University
    Cairo, Egypt
    Recruiting
  • Neurology Unit, Kobry Elkoba Medical Complex
    Cairo, Egypt
    Recruiting
  • Université Cote d'Azur UR2CA-URRIS, Unité Neurovasculaire, CHU Hôpital Pasteur 2
    Nice, France
    Recruiting
Show 41 more locations
  • Department of Neurology, Charite, Berlin Germany and Center for Stroke Research (CSB)
    Berlin, Germany
    Recruiting
  • Department of Neurology, Martin-Luther-University of Halle-Wittenberg
    Halle, Germany
    Recruiting
  • Neurological Clinic, Marche Polytechnic University
    Ancona, Italy
    Recruiting
  • SC Neurologia, Stroke Unit, Ospedale di Venere
    Bari, Italy
    Recruiting
  • IRCCS Istituto delle Scienze Neurologiche
    Bologna, Italy
    Recruiting
  • SCA Neurologia, USL Umbria 1
    Città di Castello, Italy
    Recruiting
  • Azienda Ospedaliero-Universitaria di Ferrara, Arcispedale Sant'Anna
    Ferrara, Italy
    Recruiting
  • SOD Stroke Unit, Azienda Ospedaliero Universitaria Careggi
    Florence, Italy
    Recruiting
  • Stroke Unit, Hospital Fabrizio Spazian
    Frosinone, Italy
    Recruiting
  • University of L'Aquila
    L’Aquila, Italy
    Recruiting
  • Neurology and Stroke Unit, ASST Grande Ospedale Metropolitano Niguarda
    Milan, Italy
    Recruiting
  • Neurology and Stroke Unit, AORN Antonio Cardarelli
    Naples, Italy
    Recruiting
  • UOC Neurologia e Stroke Unit, AOOR. Villa Sofia - Cervello
    Palermo, Italy
    Recruiting
  • Department of Medicine and Surgery, University of Parma
    Parma, Italy
    Recruiting
  • Department of Emergency Neurology and Stroke Unit, IRCCS C. Mondino
    Pavia, Italy
    Recruiting
  • Medicina Interna e d'Urgenza - Stroke Unit, Azienda Ospedaliera di Perugia
    Perugia, Italy
    Recruiting
  • Department of Emergency Neurology and Stroke Unit, Pescara Hospital
    Pescara, Italy
    Recruiting
  • Department of Neuroscience, Neurology Unit, S.Maria delle Croci Hospital, AUSL Romagna
    Ravenna, Italy
    Recruiting
  • Neurology Unit, Stroke Unit, Azienda Unità Sanitaria Locale-IRCCS di Reggio Emilia
    Reggio Emilia, Italy
    Recruiting
  • UOSD Stroke Unit, Azienda Ospedaliera San Camillo Forlanini
    Rome, Italy
    Recruiting
  • Fondazione Policlinico Universitario Agostino Gemelli
    Rome, Italy
    Recruiting
  • UOC Neurologia, Ospedale Provinciale "Madonna del Soccorso"
    San Benedetto del Tronto, Italy
    Recruiting
  • UOC Stroke Unit, Emergency and Urgency Department, AOU Senese
    Siena, Italy
    Recruiting
  • ASL Abruzzo 4, G.Mazzini Hospital
    Teramo, Italy
    Recruiting
  • SOSD Stroke Unit, Department of Head, Neck, and Neuroscience, Udine University Hospital
    Udine, Italy
    Recruiting
  • Stroke Unit, Neurologia A, Azienda Ospedaliera Universitaria Integrata di Verona
    Verona, Italy
    Recruiting
  • University Clinic of Neurology, University "Ss.Cyril and Methodius"-Faculty of Medicine
    Skopje, North Macedonia
    Recruiting
  • Department of Neurology, Jagiellonian University Medical College
    Krakow, Poland
    Recruiting
  • Lisbon Central University Hospital - ULS São José and Faculdade de Medicina, Universidade de Lisboa
    Lisbon, Portugal
    Recruiting
  • Hospital de Santa Maria
    Lisbon, Portugal
    Recruiting
  • Elias University Emergency Hospital, Carol Davila University of Medicine and Pharmacy
    Bucharest, Romania
    Recruiting
  • King Abdulaziz Medical City
    Riyadh, Saudi Arabia
    Recruiting
  • Vascular Neurology Division National Neuroscience Institute King Fahad Medical City
    Riyadh, Saudi Arabia
    Recruiting
  • Department of Neurology, Faculty of Medicine, P. J. Safarik University and University Hospital L. Pasteur
    Košice, Slovakia
    Recruiting
  • La Paz University Hospital, Universidad Autónoma de Madrid, IdiPAZ Research Institute
    Madrid, Spain
    Recruiting
  • Department of Medicine, University of Valladolid
    Valladolid, Spain
    Recruiting
  • University Teaching Hospital St. Gallen
    Sankt Gallen, Switzerland
    Recruiting
  • Southmead Hospital, North Bristol NHS Trust
    Bristol, UK, United Kingdom
    Recruiting
  • St George's University Hospitals NHS Foundation Trust
    London, UK, United Kingdom
    Recruiting
  • Department of Brain Sciences, Imperial College London
    London, UK, United Kingdom
    Recruiting
  • Department of Stroke and Neuroscience, Charing Cross Hospital, Imperial College
    London, UK, United Kingdom
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.