Evidence map›Paper›PMID 32986176›Full record

ArticleJournal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing2020

Rationale and design of a randomized clinical trial to compare two antithrombotic strategies after left atrial appendage occlusion: double antiplatelet therapy vs. apixaban (ADALA study).

Eduardo Josué Flores-Umanzor, Pedro L Cepas-Guillen, Dabit Arzamendi, Ignacio Cruz-González, Ander Regueiro, Xavier Freixa

Abstract readClinical Trial Protocol
PubMed Publisher
In one paragraph

Article in Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
1.0field-weighted citation impact, top 20% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

7 citing papers in PubMed, 17 citations in OpenAlex.

  1. Antithrombotic Therapy in Percutaneous Atrial Structural Interventions.Journal of cardiovascular development and disease · 2026
    Review
  2. Review
  3. Article
  4. Review
  5. Article
  6. Low Dose of Direct Oral Anticoagulants after Left Atrial Appendage Occlusion.Journal of cardiovascular development and disease · 2021
    Article
  7. Observational
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 3 institutions in 1 country.

Eduardo Josué Flores-UmanzorCardiology Department, Cardiovascular Institute, Hospital Clinic, University of Barcelona, C/Villarroel, 170, 08036, Barcelona, Spain.
Pedro L Cepas-GuillenCardiology Department, Cardiovascular Institute, Hospital Clinic, University of Barcelona, C/Villarroel, 170, 08036, Barcelona, Spain.
Dabit ArzamendiCardiology Department, Hospital Universitari de la Santa Creu i Sant Pau, Barcelona, Spain.
Ignacio Cruz-GonzálezUniversity Hospital of Salamanca, Institute of Biomedical Research in Salamanca (IBSAL), Faculty of Medicine, University of Salamanca, CIBERCV, Salamanca, Spain.
Ander RegueiroCardiology Department, Cardiovascular Institute, Hospital Clinic, University of Barcelona, C/Villarroel, 170, 08036, Barcelona, Spain.
Xavier FreixaCardiology Department, Cardiovascular Institute, Hospital Clinic, University of Barcelona, C/Villarroel, 170, 08036, Barcelona, Spain. freixa@clinic.cat.
Universitat de Barcelona · ESHospital de Sant Pau · ESUniversidad de Salamanca · ES

Funding

Sociedad Española de Cardiología Interventional Cardiology Scholarship Dr. Alfonso Medina of the Spanish Society of Cardiology.
6 · The paper itself

Abstract

backgroundData on antithrombotic therapy after percutaneous left atrial appendage occlusion (LAAO) is scarce and no randomized evaluation has been performed to demonstrate what is the best antithrombotic strategy. Up to date, different antithrombotic regimens with variable durations are currently used. In fact, the use of oral anticoagulation (OAC) or dual antiplatelet therapy (DAPT) with aspirin and clopidogrel during the initial phase (∓ 3 months post-LAAO) has been proposed as valid strategies. However, antiplatelet and OAC therapies have never been compared in a randomized study after left atrial appendage closure (LAAC). The purpose of the present study is to ascertain an optimal antithrombotic strategy after LAAC in terms of safety and efficacy. The study will compare a novel OAC (NOAC) with a highly safety profile like apixaban 5 mg/12 h or 2.5 mg/12 h (after dose adjustment or in high-risk patients) with standard antiplatelet therapy with DAPT. The aim of the study was to compare a strategy of anticoagulation with apixaban 5 mg/2.5 mg bid to the current standard of care (DAPT with aspirin and clopidogrel) after LAAO in patients with non-valvular atrial fibrillation (AF).

methodsThis is a phase IV multicenter randomized, open-label, controlled trial comparing the efficacy and safety of apixaban vs. DAPT after LAAO, both for 3 months. The primary endpoint is a combined endpoint of death, myocardial infarction, stroke, thromboembolic complications, and major or significant bleeding at 3 months of follow-up. Approximately 160 subjects will be enrolled and followed 12 months from randomization.

conclusionsConsidering the high risk of both thromboembolic and hemorrhagic events of patients undergoing LAAO, establishment of an appropriate antithrombotic therapy in terms of efficacy and safety after LAAO is of vital importance.

trial registrationEudraCT number: 2018-001013-32.

Indexed as

Atrial AppendageAtrial FibrillationStrokeAnticoagulantsClinical Trials, Phase IV as TopicFibrinolytic AgentsHumansMulticenter Studies as TopicPlatelet Aggregation InhibitorsPyrazolesPyridonesRandomized Controlled Trials as TopicTreatment OutcomeAnticoagulantsapixabanFibrinolytic AgentsPlatelet Aggregation InhibitorsPyrazolesPyridonesAtrial FibrillationLAAOral AnticoagulationStroke

Identifiers

PMID32986176
OpenAlexW3088722353

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.