The Optimal Anticoagulation for Enhanced Risk Patients Post-Catheter Ablation for Atrial Fibrillation Trial (OCEAN)

Study outline

The OCEAN trial investigates whether successful long-term elimination of atrial fibrillation (AF) with percutaneous catheter ablation will result in a reduction in stroke risk sufficient to obviate the need for long-term oral anticoagulation (OAC).

Current Status

Patient enrolment ongoing in Germany, Canada and China
230 patients randomized
21 sites open for recruitment, 3 of them in Germany

Study set-up in preparation in Australia and Israel.
Site set-up ongoing in UK and Belgium. 
Status as of 22nd February, 2018, updates are carried out quarterly.

Planned Number of Patients

1.572 (375 in Germany)

Participating Countries

Australia, Belgium, Canada, China, Germany, Israel, UK

Chief International Investigators

David H. Birnie, MD, Ottawa Heart Institute Research Corporation, Canada
Atul Verma, MD, Southlake Regional Health Center, Ontario, Canada
Gerhard Hindricks, MD, Leipzig Heart Centre, Germany

Overall Responsibility

Sponsor: Ottawa Heart Institute Research Corporation, Canada
Legal Sponsor Representative for Europe: Kompetenznetz Vorhofflimmern e.V.  (Atrial Fibrillation NETwork - AFNET), Münster, Germany 


NCT number: 02168829
EudraCT number: 2016-002353-38