NCT04550637

Brief Summary

The aim of the study is to enroll approximately 200 cases from 10 research centers nationwide, completed left atrial appendage occlusion (LAAO) successfully, and give apixaban (5 mg bid) postoperatively.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
200

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Jul 2022

Typical duration for all trials

Geographic Reach
1 country

1 active site

Status
unknown

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

First Submitted

Initial submission to the registry

May 17, 2020

Completed
4 months until next milestone

First Posted

Study publicly available on registry

September 16, 2020

Completed
1.8 years until next milestone

Study Start

First participant enrolled

July 4, 2022

Completed
1.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2023

Completed
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2024

Completed
Last Updated

October 18, 2022

Status Verified

October 1, 2022

Enrollment Period

1.5 years

First QC Date

May 17, 2020

Last Update Submit

October 16, 2022

Conditions

Outcome Measures

Primary Outcomes (1)

  • Incidence of adverse cardiovascular events

    all cause death, stroke, transient ischemic attack, systemic embolism

    within 24 weeks after surgery

Secondary Outcomes (6)

  • Hemorrhagic/ischemic stroke events

    within 24 weeks after surgery

  • Bleeding event

    within 24 weeks after surgery

  • Incidence of deaths

    witnin 24 weeks after surgery

  • Device related thrombosis

    12 weeks and 24 weeks after surgery

  • Incidence of cardiovascular disease-related rehospitalization

    12 weeks and 24 weeks after surgery

  • +1 more secondary outcomes

Study Arms (1)

Anticoagulant therapy after percutaneous left atrial appendage

Oral apixaban

Drug: Oral apixaban

Interventions

apixaban (5 mg bid) is given until 12 weeks after surgery

Anticoagulant therapy after percutaneous left atrial appendage

Eligibility Criteria

Age18 Years - 85 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodProbability Sample
Study Population

The study is going to enroll approximately 200 cases who completed left atrial appendage occlusion (LAAO) successfully from 10 research centers nationwide.

You may qualify if:

  • age between 18 to 85 years;
  • understand the purpose of the trial, sign the informed consent form voluntarily
  • successful surgery (no pericardial effusion, pericardial tamponade, or device displacement during operation; no pericardial effusion before discharge), meet COST standard during operation.
  • In accordance with the indications for left atrial appendage occlusion: CHA2DS2-VAS2 score≥2 points and/or HAS-BLED score≥3 points
  • unable or unwilling to take oral anticoagulants
  • life expectancy≥1 year

You may not qualify if:

  • History of previous cardiac surgery (valve disease, cardiomyopathy, severe coronary occlusion);
  • Inability to tolerate trans-esophageal echocardiography;
  • Preoperative trans-esophageal echocardiography suggests thrombus in left atrial appendage/left atrial;
  • Patients with severe renal insufficiency (creatinine clearance rate\<15ml/min);
  • Patients with liver disease accompanied by abnormal blood coagulation and clinically related bleeding risks;
  • Clinically significant active bleeding;
  • The baseline platelet count is severely reduced: PLT≤50\*10\^9/L;
  • Severe cardiac insufficiency (preoperative transthoracic echocardiography indicated LVEF \<35%; uncontrolled heart failure (NYHA IV))
  • Allergy or contraindication to anticoagulant drugs such as aspirin, clopidogrel, apixaban, etc .;
  • Serious heart valve disease or other structural abnormalities need do elective surgical treatment; or severe coronary heart disease require limited-term intervention;
  • Less than 45kg or more than 100kg.
  • Take strong CYP3A4 and P-gp inhibitors (including pyrrole antifungal drugs, HIV protease inhibitors, etc.) for systemic treatment;
  • Patients with other diseases besides atrial fibrillation (such as after mechanical valve replacement, spontaneous or recurrent venous thromboembolism, etc.) need anticoagulation treatment;
  • Unsuccessful surgery (serious pericardial tamponade, massive bleeding and other life-threatening complications occur within 3 days after left atrial appendage closure);
  • Pregnancy or lactation;
  • +2 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Zhongshan Hospital

Shanghai, China

RECRUITING

MeSH Terms

Interventions

apixaban

Study Officials

  • Junbo Ge

    Fudan University

    STUDY CHAIR

Central Study Contacts

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Target Duration
24 Weeks
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

May 17, 2020

First Posted

September 16, 2020

Study Start

July 4, 2022

Primary Completion

December 31, 2023

Study Completion

December 31, 2024

Last Updated

October 18, 2022

Record last verified: 2022-10

Locations