Oral Anticoagulation Versus Left Atrial Appendage Occlusion Added to Direct Oral Anticoagulation in Patients with Stroke Despite Oral
ADDLAAO
1 other identifier
interventional
380
1 country
1
Brief Summary
A total of 380 patients with ischemic stroke despite OAC will be included. Patients will be randomized 1:1 to the best medical treatment (control) or the combination of LAAO and DOAC or OAC. The study's primary endpoint will be the occurrence of a cardioembolic event (ischemic stroke or arterial peripheral embolism) within the first 12 months after inclusion.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable
Started Jul 2024
Typical duration for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
July 22, 2024
CompletedFirst Submitted
Initial submission to the registry
March 5, 2025
CompletedFirst Posted
Study publicly available on registry
March 11, 2025
CompletedPrimary Completion
Last participant's last visit for primary outcome
February 22, 2027
ExpectedStudy Completion
Last participant's last visit for all outcomes
July 22, 2027
March 11, 2025
July 1, 2024
2.6 years
March 5, 2025
March 5, 2025
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Primary Endpoint
The study's primary endpoint will be the occurrence of a cardioembolic event (ischemic stroke or arterial peripheral embolism) within the first 12 months after inclusion.
12 months
Study Arms (2)
Best medical treatment
ACTIVE COMPARATORThe best medical treatment selected by the neurologist including change OAC/DOAC or intensification of the antithrombotic treatment.
Left atrial appendage occlusion + DOAC or OAC
ACTIVE COMPARATORLAA Occlusion + DOAC (unless there is a compelling use of OAC like in a mechanical valve).
Interventions
LAA Closure + DOAC or OAC
Eligibility Criteria
You may qualify if:
- Cardioembolic\* Ischemic stroke despite OAC or DOAC within the last 6 months.
- Documented AF (either valvular or non-valvular AF).
- LAA suitable for closure (if LAA thrombus, just distal).
- No contraindication for LAA assessment by CT or 3D-TEE.
- \>18 years
- Life expectancy \>1year
- Able and willing to return for follow-up visits and tests.
You may not qualify if:
- Absolute contraindication to OAC/DOAC.
- Non-compliance of OAC/DOAC \>24 hours within the last week before the index stroke (\>1 dose per - - Antagonist Vit K and \>2 doses per DOAC).
- Lacunar Ischemic Stroke.
- Symptomatic carotid disease (defined as \> 50% lumen diameter narrowing on CTA, MRA, or TCD with symptoms of ipsilateral transient or visual TIA evidenced by amaurosis fugax, ipsilateral hemispheric TIAs or ipsilateral stroke); if subject has a history of carotid stent or endarterectomy the subject is eligible if there is \< 50% lumen diameter narrowing.
- Planned cardiac intervention or surgery, which is invasive or requires sedation or anesthesia, within 3 months following randomization, other than study-related procedures such as LAAO and cardiac imaging (if applicable).
- In the opinion of the investigator, is considered at high risk for general anesthesia and general anesthesia is planned for the study procedure.
- Non-treated patent foramen ovale (PFO) or PFO closure device implanted.
- Inferior vena cava filter.
- Has any of the customary contraindications for a percutaneous catheterization procedure (e.g. subject is too small to accommodate the ICE probe (if planned) or required catheters, or subject has - active infection or bleeding disorder).
- Customary contraindications for TEE/TOE (e.g., presence of esophageal varices, esophageal stricture, or history of esophageal cancer).
- Underwent catheter ablation for AF or atrial flutter within 60 days prior to randomization.
- Experienced myocardial infarction within 90 days prior to randomization.
- New York Heart Association Class IV Congestive Heart Failure.
- Left ventricular ejection fraction ≤ 30% (per most recent assessment).
- LAA is obliterated or surgically ligated.
- +7 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Hospital Clinic of Barcelonalead
- Fundació Institut de Recerca de l'Hospital de la Santa Creu i Sant Paucollaborator
- Hospital San Carlos, Madridcollaborator
- Hospital Álvaro Cunqueirocollaborator
- Hospital Universitari de Bellvitgecollaborator
- University of Salamancacollaborator
Study Sites (1)
Hospital Clinic Barcelona
Barcelona, Barcelona, 08036, Spain
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- SINGLE
- Who Masked
- OUTCOMES ASSESSOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
March 5, 2025
First Posted
March 11, 2025
Study Start
July 22, 2024
Primary Completion (Estimated)
February 22, 2027
Study Completion (Estimated)
July 22, 2027
Last Updated
March 11, 2025
Record last verified: 2024-07