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ClinicalTrials.gov public records Last synced Oct 2, 2026, 2:36 PM EDT

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Showing 25–48 of 48 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: vitamin K antagonists Clear all
Recruiting Not applicable Interventional

Assessment of TRanscathetEr and Surgical Aortic BiOprosthetic Valve Thrombosis and Its TrEatment With Anticoagulation

NCT02318342
View directory record Official record
Conditions
Prosthetic Valve Thrombosis
Interventions
Warfarin
Drug
Lead sponsor
Cedars-Sinai Medical Center
Other
Eligibility
18 Years and older
Enrollment
3,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2028
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jun 16, 2026 · Synced Oct 2, 2026, 2:36 PM EDT
Active, not recruiting No phase listed Observational

Post Marketing Observational Study on Safety of BALFAXAR vs. KCENTRA for Reversal of Vitamin K Antagonist Induced Anticoagulation in Adults Undergoing Urgent Surgery or Invasive Procedure

NCT06429787
View directory record Official record
Conditions
Vitamin K-Dependent Coagulation Defect, Significant Bleeding Risk
Interventions
Balfaxar, Kcentra
Drug
Lead sponsor
Octapharma
Industry
Eligibility
18 Years and older
Enrollment
3,574 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2032
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Sep 15, 2026 · Synced Oct 2, 2026, 2:36 PM EDT
Completed No phase listed Observational

Rivaroxaban vs Warfarin for SPAF in Multi-morbid Patients

NCT03374540
View directory record Official record
Conditions
Nonvalvular Atrial Fibrillation
Interventions
Rivaroxaban (Xarelto, BAY59-7939), Vitamin K antagonist (VKA)
Drug
Lead sponsor
Bayer
Industry
Eligibility
18 Years and older
Enrollment
78,517 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
Multiple Locations, Washington
Source: ClinicalTrials.gov public record
Updated Aug 17, 2020 · Synced Oct 2, 2026, 2:36 PM EDT
Completed Phase 2 Interventional Results available

Oral Rivaroxaban in Children With Venous Thrombosis

NCT01684423
View directory record Official record
Conditions
Venous Thrombosis
Interventions
Rivaroxaban (Xarelto, BAY59-7939), Active comparator, Rivaroxaban (BAY59-7939) suspension
Drug
Lead sponsor
Bayer
Industry
Eligibility
6 Years to 17 Years
Enrollment
64 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2016
U.S. locations
13
States / cities
Little Rock, Arkansas • Los Angeles, California • Orange, California + 10 more
Source: ClinicalTrials.gov public record
Updated Sep 21, 2017 · Synced Oct 2, 2026, 2:36 PM EDT
Active, not recruiting Not applicable Interventional

Amplatzer Amulet LAAO vs. NOAC

NCT04226547
View directory record Official record
Conditions
Atrial Fibrillation, Stroke, Bleeding
Interventions
Left Atrial Appendage Occlusion (Amplatzer Amulet LAA Occluder), Non-Vitamin K Oral Antagonists
Device · Drug
Lead sponsor
Abbott Medical Devices
Industry
Eligibility
18 Years and older
Enrollment
2,650 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2031
U.S. locations
79
States / cities
Birmingham, Alabama • Huntsville, Alabama • Phoenix, Arizona + 65 more
Source: ClinicalTrials.gov public record
Updated Feb 10, 2026 · Synced Oct 2, 2026, 2:36 PM EDT
Terminated Phase 3 Interventional Results available

Global Study Comparing a rivAroxaban-based Antithrombotic Strategy to an antipLatelet-based Strategy After Transcatheter aortIc vaLve rEplacement to Optimize Clinical Outcomes

NCT02556203
View directory record Official record
Conditions
Transcatheter Aortic Valve Replacement
Interventions
Rivaroxaban (Xarelto, BAY59-7939), Acetylsalicylic Acid (ASA), Clopidogrel, Vitamin K antagonist (VKA)
Drug
Lead sponsor
Bayer
Industry
Eligibility
18 Years and older
Enrollment
1,653 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2018
U.S. locations
31
States / cities
Los Angeles, California • Washington D.C., District of Columbia • Clearwater, Florida + 27 more
Source: ClinicalTrials.gov public record
Updated Jan 13, 2020 · Synced Oct 2, 2026, 2:36 PM EDT
Completed Phase 3 Interventional Results available

A Phase III Study of Apixaban in Patients With Atrial Fibrillation

NCT00496769
View directory record Official record
Conditions
Atrial Fibrillation
Interventions
Apixaban, Acetylsalicylic acid
Drug
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
50 Years and older
Enrollment
6,421 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2017
U.S. locations
69
States / cities
Mobile, Alabama • Tucson, Arizona • Anaheim, California + 62 more
Source: ClinicalTrials.gov public record
Updated Jun 15, 2018 · Synced Oct 2, 2026, 2:36 PM EDT
Completed Phase 2 Interventional Results available

A Study of the Safety and Pharmacokinetics of Apixaban Versus Vitamin K Antagonist (VKA) or Low Molecular Weight Heparin (LMWH) in Pediatric Subjects With Congenital or Acquired Heart Disease Requiring Anticoagulation

NCT02981472
View directory record Official record
Conditions
Thrombosis
Interventions
Apixaban, Vitamin K Antagonist (VKA), Low Molecular Weight Heparin (LMWH)
Drug
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
28 Days to 17 Years
Enrollment
192 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2021
U.S. locations
14
States / cities
Phoenix, Arizona • La Jolla, California • Aurora, Colorado + 11 more
Source: ClinicalTrials.gov public record
Updated Oct 3, 2022 · Synced Oct 2, 2026, 2:36 PM EDT
Recruiting Early Phase 1 Interventional

Discontinuation of Anticoagulations After Successful Catheter Ablation of Atrial Fibrillation

NCT06615596
View directory record Official record
Conditions
Atrial Fibrillation (AF)
Interventions
discontinue anticoagulation therapy, Anticoagulant drugs, Catheter Ablation
Behavioral · Drug · Procedure
Lead sponsor
China National Center for Cardiovascular Diseases
Government
Eligibility
18 Years and older
Enrollment
3,160 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2029
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 4, 2026 · Synced Oct 2, 2026, 2:36 PM EDT
Completed Phase 4 Interventional Results available

A Study of Apixaban in Patients With Atrial Fibrillation, Not Caused by a Heart Valve Problem, Who Are at Risk for Thrombosis (Blood Clots) Due to Having Had a Recent Coronary Event, Such as a Heart Attack or a Procedure to Open the Vessels of the Heart

NCT02415400
View directory record Official record
Conditions
Acute Coronary Syndromes
Interventions
Apixaban, vitamin K antagonist, Acetylsalicylic acid, Acetylsalicylic acid placebo
Drug · Other
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
18 Years to 95 Years
Enrollment
4,614 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2018
U.S. locations
143
States / cities
Birmingham, Alabama • Phoenix, Arizona • Scottsdale, Arizona + 125 more
Source: ClinicalTrials.gov public record
Updated Jun 11, 2020 · Synced Oct 2, 2026, 2:36 PM EDT
Not listed Phase 3 Interventional

Effect of TXA Oral Sol 5% in Patients Treated With DOACs or VKA and Undergoing a Single or Multiple Tooth Extraction

NCT06143787
View directory record Official record
Conditions
Bleeding From Teeth, Bleeding Prophylaxis
Interventions
Tranexamic acid
Drug
Lead sponsor
Hyloris Developments
Industry
Eligibility
18 Years to 99 Years
Enrollment
280 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
4
States / cities
Loma Linda, California • Stamford, Connecticut • Millcreek, Utah + 1 more
Source: ClinicalTrials.gov public record
Updated Aug 1, 2024 · Synced Oct 2, 2026, 2:36 PM EDT
Completed No phase listed Observational

Predicting Bleeding Risk on Anticoagulant Therapy for Venous Thromboembolism

NCT00788736
View directory record Official record
Conditions
Venous Thromboembolism
Interventions
Not listed
Lead sponsor
Ottawa Hospital Research Institute
Other
Eligibility
18 Years and older
Enrollment
2,537 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2016
U.S. locations
2
States / cities
Burlington, Massachusetts • Detroit, Michigan
Source: ClinicalTrials.gov public record
Updated Oct 27, 2016 · Synced Oct 2, 2026, 2:36 PM EDT
Recruiting Phase 3 Interventional

Anticoagulation for New-Onset Post-Operative Atrial Fibrillation After CABG

NCT04045665
View directory record Official record
Conditions
Atrial Fibrillation, Stroke, Bleeding
Interventions
Antiplatelet-only strategy, Oral Anticoagulant plus background antiplatelet therapy
Drug
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
18 Years and older
Enrollment
3,200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2026
U.S. locations
51
States / cities
Little Rock, Arkansas • Los Angeles, California • Stanford, California + 40 more
Source: ClinicalTrials.gov public record
Updated Jun 26, 2026 · Synced Oct 2, 2026, 2:36 PM EDT
Completed No phase listed Observational

Clinical Outcomes Among Non-valvular Atrial Fibrillation Patients With Renal Dysfunction

NCT03359876
View directory record Official record
Conditions
Atrial Fibrillation
Interventions
Rivaroxaban (Xarelto, BAY59-7939), Warfarin sodium
Drug
Lead sponsor
Bayer
Industry
Eligibility
18 Years and older
Enrollment
16,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
Whippany, New Jersey
Source: ClinicalTrials.gov public record
Updated Dec 11, 2019 · Synced Oct 2, 2026, 2:36 PM EDT
Completed Phase 3 Interventional Results available

Study of Octaplex, a Four-factor Prothrombin Complex Concentrate (4F-PCC) and Beriplex® P/N (Kcentra) for the Reversal of Vitamin K Antagonist (VKA) Induced Anticoagulation in Patients Needing Urgent Surgery With Significant Bleeding Risk.

NCT02740335
View directory record Official record
Conditions
Significant Bleeding Risk
Interventions
Octaplex, Beriplex P/N (Kcentra)
Drug
Lead sponsor
Octapharma
Industry
Eligibility
18 Years and older
Enrollment
208 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2022
U.S. locations
22
States / cities
Aurora, Colorado • New Haven, Connecticut • Miami, Florida + 14 more
Source: ClinicalTrials.gov public record
Updated Mar 8, 2023 · Synced Oct 2, 2026, 2:36 PM EDT
Not listed Phase 2Phase 3 Interventional

Comparison of ATI-5923, a Novel Vitamin K Antagonist, With Warfarin in Patients Requiring Chronic Anticoagulation

NCT00691470
View directory record Official record
Conditions
Atrial Fibrillation, Atrial Flutter, Venous Thromboembolic Disease, Myocardial Infarction, Cardiomyopathy
Interventions
ATI-5923, Coumadin (warfarin)
Drug
Lead sponsor
ARYx Therapeutics
Industry
Eligibility
18 Years and older
Enrollment
600 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
41
States / cities
Birmingham, Alabama • Huntsville, Alabama • Mobile, Alabama + 34 more
Source: ClinicalTrials.gov public record
Updated Feb 2, 2010 · Synced Oct 2, 2026, 2:36 PM EDT
Completed Phase 3 Interventional Results available

Open Label Study Comparing Efficacy and Safety of Dabigatran Etexilate to Standard of Care in Paediatric Patients With Venous Thromboembolism (VTE)

NCT01895777
View directory record Official record
Conditions
Venous Thromboembolism
Interventions
dabigatran etexilate, standard of care
Drug
Lead sponsor
Boehringer Ingelheim
Industry
Eligibility
Up to 17 Years
Enrollment
267 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2019
U.S. locations
9
States / cities
Sacramento, California • Miami, Florida • Tampa, Florida + 6 more
Source: ClinicalTrials.gov public record
Updated Jul 7, 2020 · Synced Oct 2, 2026, 2:36 PM EDT
Completed Phase 2 Interventional

Once-daily Oral Direct Factor Xa Inhibitor BAY59-7939 in Patients With Acute Symptomatic Deep-vein Thrombosis

NCT00395772
View directory record Official record
Conditions
Venous Thromboembolism
Interventions
Xarelto (Rivaroxaban, BAY59-7939), (LMW) Heparin + Vitamin K Antagonist
Drug
Lead sponsor
Bayer
Industry
Eligibility
18 Years and older
Enrollment
543 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2005
U.S. locations
5
States / cities
Albuquerque, New Mexico • Chapel Hill, North Carolina • Fredericksburg, Virginia + 1 more
Source: ClinicalTrials.gov public record
Updated Oct 28, 2014 · Synced Oct 2, 2026, 2:36 PM EDT
Completed Phase 3 Interventional

Evaluating the Use of SR34006 Compared to Warfarin or Acenocoumarol in Patients With Atrial Fibrillation (AMADEUS)

NCT00070655
View directory record Official record
Conditions
Atrial Fibrillation
Interventions
SR34006 (idraparinux sodium) Injection, vitamin K antagonist (warfarin or acenocoumarol) tablets
Drug
Lead sponsor
Sanofi
Industry
Eligibility
18 Years and older
Enrollment
4,673 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2006
U.S. locations
41
States / cities
Birmingham, Alabama • Huntsville, Alabama • Mesa, Arizona + 30 more
Source: ClinicalTrials.gov public record
Updated Apr 6, 2011 · Synced Oct 2, 2026, 2:36 PM EDT
Completed Phase 3 Interventional Results available

A Study Exploring Two Treatment Strategies in Patients With Atrial Fibrillation Who Undergo Catheter Ablation Therapy

NCT01729871
View directory record Official record
Conditions
Atrial Fibrillation
Interventions
rivaroxaban, uninterrupted vitamin K antagonist (VKA)
Drug
Lead sponsor
Janssen Scientific Affairs, LLC
Industry
Eligibility
18 Years and older
Enrollment
253 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
24
States / cities
Beverly Hills, California • Los Angeles, California • Sacramento, California + 21 more
Source: ClinicalTrials.gov public record
Updated Mar 6, 2017 · Synced Oct 2, 2026, 2:36 PM EDT
Completed Phase 3 Interventional Results available

Edoxaban vs. Warfarin in Subjects Undergoing Cardioversion of Nonvalvular Atrial Fibrillation (NVAF)

NCT02072434
View directory record Official record
Conditions
Atrial Fibrillation
Interventions
Edoxaban, Warfarin, Enoxaparin
Drug
Lead sponsor
Daiichi Sankyo
Industry
Eligibility
18 Years and older
Enrollment
2,199 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
28
States / cities
Phoenix, Arizona • Escondido, California • Newport Beach, California + 25 more
Source: ClinicalTrials.gov public record
Updated Mar 15, 2019 · Synced Oct 2, 2026, 2:36 PM EDT
Recruiting Phase 4 Interventional

Aspirin and Hemocompatibility Events in Chronic Advanced Heart Failure Patients With Assist Device

NCT06655376
View directory record Official record
Conditions
Bleeding, Clot Blood
Interventions
Aspirin, Warfarin
Drug
Lead sponsor
Columbia University
Other
Eligibility
18 Years and older
Enrollment
128 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
3
States / cities
Chicago, Illinois • New York, New York • Houston, Texas
Source: ClinicalTrials.gov public record
Updated Feb 27, 2026 · Synced Oct 2, 2026, 2:36 PM EDT
Terminated Phase 3 Interventional

Long-term Treatment for Cancer Patients With Deep Venous Thrombosis or Pulmonary Embolism

NCT01164046
View directory record Official record
Conditions
Venous Thromboembolism, Neoplasms
Interventions
low molecular weight heparin, vitamin K antagonists
Drug
Lead sponsor
University Medical Center Groningen
Other
Eligibility
18 Years and older
Enrollment
56 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2014
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Dec 3, 2014 · Synced Oct 2, 2026, 2:36 PM EDT
Completed Phase 4 Interventional

Apixaban During Atrial Fibrillation Catheter Ablation: Comparison to Vitamin K Antagonist Therapy

NCT02227550
View directory record Official record
Conditions
Atrial Fibrillation
Interventions
Vitamin K antagonist, Apixaban
Drug
Lead sponsor
Atrial Fibrillation Network
Other
Eligibility
18 Years and older
Enrollment
676 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2017
U.S. locations
5
States / cities
New York, New York • Philadelphia, Pennsylvania • Nashville, Tennessee + 2 more
Source: ClinicalTrials.gov public record
Updated Oct 20, 2017 · Synced Oct 2, 2026, 2:36 PM EDT