About this trial
SAFE-LAAC Trial has been designed to gather data on the most optimal strategy of antiplatelet therapy after transcatheter left atrial appendage occlusion with Amplatzer or WATCHMAN device
Eligibility criteria
Qualifiers
Successful left atrial appendage occlusion with Amplatzer or WATCHMAN device within 37 days before randomization
Treatment with dual antiplatelet therapy (clopidogrel and acetylsalicylic acid) between left atrial appendage closure and randomization
Participant's age 18 years or older at the time of signing the informed consent form
Participant is willing to follow all study procedures; especially the randomized antiplatelet treatment regimen
Disqualifiers
Indications to dual antiplatelet therapy other than atrial fibrillation and/or left atrial appendage occlusion at the time of enrollment or predicted appearance of such indications within the duration of the trial (e.g. planned coronary revascularization)
Indications to anticoagulation at the time of enrollment and/or predicted appearance of such indications within the duration of the trial (e.g. pulmonary embolism)
Known allergy to clopidogrel and/or acetylsalicylic acid precluding its administration as specified by the protocol
Any known inborn or acquired coagulation disorders
Trial design
Treatments tested in this trial
- short postimplantation dual antiplatelet therapy
- extended postimplantation dual antiplatelet therapy
- long-term treatment with a single antiplatelet agent
- 6 months treatment with a single antiplatelet agent
Treatment groups
Sponsors and collaborators
National Institute of Cardiology, Warsaw, Poland
Lead sponsor
Medical Research Agency, Poland
Collaborator