Study to Gather Information About the Proper Dosing of the Oral FXIa Inhibitor BAY 2433334 and to Compare the Safety of the Study Drug to Apixaban, a Non-vitamin K Oral Anticoagulant (NOAC) in Patients With Irregular Heartbeat (Atrial Fibrillation) That Can Lead to Heart-related Complications.

Universitätsklinikum AKH Wien, Vienna

University of Semmelweis/ Semmelweis Egyetem, Budapest

Klinik Floridsdorf - Krankenhaus Nord, Vienna

Hôpital Cantonal Universitaire de Genève, Geneva

UZ Antwerpen, Edegem

VZW Emmaus, Mechelen

Imeldaziekenhuis - St-Elisabethkliniek, Bonheiden

UZ Leuven Gasthuisberg, Leuven

Inselspital Universitätsspital Bern, Bern

Jessa Ziekenhuis, Hasselt

Ordensklinikum Linz GmbH Elisabethinen, Linz

Universitätsspital Basel, Basel

Medifarma-98 Egeszsegugyi, Kereskedelmi es Szolgaltato Kft., Nyíregyháza

Kantonsspital Aarau, Aarau

Uniklinikum Salzburg - Landeskrankenhaus, Salzburg

Krankenhaus St. Josef Braunau, Braunau am Inn

Medizinische Universität Innsbruck, Innsbruck

Csongrad-Csanad Megyei Dr. Bugyi Istvan Korhaz, Szentes

Landeskrankenhaus Feldkirch, Feldkirch

Ospedale regionale di Lugano, Lugano

Tolna Megyei Balassa Janos Korhaz, Szekszárd

Pecsi Tudomanyegyetem Klinikai Kozpont, Pécs

AZ St-Jan Brugge Oostende AV, Bruges

Medizinische Universität Graz, Graz

Tagore Medical Center, Balatonfüred

AZ Delta, Roeselare

Kanizsai Dorottya Hospital, Nagykanizsa

Kantonsspital St. Gallen, Sankt Gallen

IRCCS Ospedale Policlinico San Martino, Genoa

Centre Hospitalier Régional - Saint Brieuc, Saint-Brieuc

ASST Spedali Civili di Brescia, Brescia

Hospital Universitario 12 de Octubre, Madrid

Centre Hospitalier Louis Pasteur, Le Coudray

Hospital Virgen de la Victoria, Málaga

Hôpital de Rangueil - Toulouse, Toulouse

AUSL Toscana Sud-Est, Arezzo

AUSL Toscana Sud-Est, Arezzo

Centre Hospitalier - Valenciennes Cedex, Valenciennes

ASUR Marche - Area Vasta 5, Ascoli Piceno

Hopital Bichat - Paris, Paris

Centre Hospitalier Départemental Vendée, La Roche-sur-Yon

Hôpital Henri Mondor, Créteil

Queen Elizabeth II Health Sciences Centre, Halifax

Montreal Heart Institute, Montreal

Clinique Sante Cardio MC, Montreal

Institut universitaire de cardiologie et de pneumologie, Ste-Foy

Fakultni nemocnice Plzen - Lochotin, Pilsen

Fakultni nemocnice Kralovske Vinohrady, Prague

Institut Klinicke a Experimentalni Mediciny, Prague

Fakultni nemocnice v Motole, Prague

Nemocnice Slany, Slaný

Krajska nemocnice T. Bati, a.s., Zlín

Magyar Honvedseg Egeszsegugyi Kozpont, Budapest

"Hospital de la Santa Creu i de Sant Pau , Cardiología"

A.O.U. Policlinico Umberto I, Rome

A.O. di Perugia, Perugia

Nakamura Cardiovascular Clinic, Itoshima

Hyogo Prefectural Harima-Himeji General Medical Center, Himeji

Hayama Heart Center, Miura-gun

Kishiwada Tokushukai Hospital, Kishiwada

Yao Tokushukai General Hospital, Yao

Nishiarai Heart Central Clinic, Adachi-ku

Minamino Cardiovascular Hospital, Hachiōji

Tokyo Angel Hospital, Hachiōji

Koto Hospital, Koto-ku

Doctor's Practice in Cardiology, Daugavpils

Daugavpils Regional Hospital, Daugavpils

Liepaja Regional Hospital, Liepāja

1st Riga Clinical Hospital, Riga

P. Stradins Clinical University Hospital, Riga

"Riga East Clinical University Hospital Gailezers", Riga

Academisch Medisch Centrum (AMC), Amsterdam

Ziekenhuis Rijnstate, Arnhem

Amphia Ziekenhuis, locatie Molengracht, Breda

Albert Schweitzer Ziekenhuis, Dordwijk, Dordrecht

Medisch Spectrum Twente, Enschede

Martini Ziekenhuis, Locatie van Swieten, Groningen

Spaarne Gasthuis - locatie Zuid, Haarlem

Maastricht UMC, Maastricht

Ciutat Sanitària i Universitària de Bellvitge, L'Hospitalet de Llobregat

Ciutat Sanitària i Universitaria de la Vall d'Hebron, Barcelona

Falu Lasarett, Falun

Clemenstorget Hjärtmottagning, Lund

Avdelningen för kliniska prövningar AKP, Örebro

Östersunds Sjukhus, Östersund

Skellefteå Lasarett, Skellefteå

Södersjukhuset AB, Stockholm

Danderyds sjukhus, Stockholm

Staploe Medical Centre, Ely

Queen Elizabeth II Hospital, Welwyn Garden City

Northwick Park Hospital, Harrow

St Richard's Hospital, Chichester

Heart and Chest Hospital, Liverpool