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ClinicalTrials.gov public records Last synced Sep 2, 2026, 2:16 AM EDT

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Showing 1–8 of 8 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Conditions
Venous Thromboembolism (VTE)
Interventions
Betrixaban, Enoxaparin
Drug
Lead sponsor
Portola Pharmaceuticals
Industry
Eligibility
40 Years and older
Enrollment
7,513 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2016
U.S. locations
75
States / cities
Birmingham, Alabama • Bakersfield, California • Fresno, California + 69 more
Conditions
Atrial Fibrillation
Interventions
betrixaban, Warfarin
Drug
Lead sponsor
Portola Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
508 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
19
States / cities
Anaheim, California • Colorado Springs, Colorado • Melbourne, Florida + 16 more
Conditions
Venous Thromboses
Interventions
Not listed
Lead sponsor
Portola Pharmaceuticals
Industry
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
Durham, North Carolina
Conditions
Venous Thromboembolism
Interventions
Electronic alert
Behavioral
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
40 Years and older
Enrollment
400 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2026
U.S. locations
1
States / cities
Boston, Massachusetts
Conditions
Hepatic Impairment
Interventions
Betrixaban
Drug
Lead sponsor
Portola Pharmaceuticals
Industry
Eligibility
18 Years to 70 Years
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Hialeah, Florida
Conditions
Atrial Fibrillation, Left Atrial Appendage Thrombosis, CVA
Interventions
LAmbre PlusTM Left Atrial Appendage Closure System, Market approved oral anticoagulation (OAC), such as warfarin (Coumadin), dabigatran (Pradaxa), rivaroxaban (Xarelto), apixiban (Eliquis), edoxaban (Savaysa), or betrixaban (Bevyxxa)
Device · Drug
Lead sponsor
Brian O'Neill MD
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024
U.S. locations
1
States / cities
Detroit, Michigan
Terminated Phase 1 Interventional Results available

Study Evaluating Betrixaban in Pediatric Participants

NCT03346083
Conditions
VTE Prophylaxis
Interventions
Betrixaban
Drug
Lead sponsor
Alexion Pharmaceuticals, Inc.
Industry
Eligibility
2 Years to 17 Years
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
5
States / cities
Los Angeles, California • Atlanta, Georgia • New Orleans, Louisiana + 1 more
Terminated Phase 2 Interventional Accepts healthy volunteers Results available

A Healthy Volunteer PK/PD, Safety and Tolerability Study of Andexanet After Betrixaban Dosing

NCT03330457
Conditions
Bleeding
Interventions
Andexanet alfa (bolus), Betrixaban 80 mg PO QD, Andexanet alfa (infusion IV)
Biological · Drug
Lead sponsor
Portola Pharmaceuticals
Industry
Eligibility
18 Years to 45 Years
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
1
States / cities
Cypress, California