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Study details
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Safety in Adult Participants With Atrial Fibrillation Who Are Treated With Anticoagulation

Regeneron Pharmaceuticals
NCT IDNCT07175428ClinicalTrials.gov data as of Apr 2026
Phase

Phase 2

Target enrollment

1,200

Study length

about 1.5 years

Ages

18+

Locations

34 sites in AL, CA, FL +11

What this study is about

This trial is testing the safety of REGN7508 and REGN9933, two experimental drugs, in adults with atrial fibrillation. It compares these new drugs to apixaban, a medication already used to prevent blood clots, to see how well they work and what side effects might occur.

Simplified from trial records by PatientMatch.

What you may be asked to do

  • 1.Take Apixaban
  • 2.Take REGN7508
  • 3.Take REGN9933

Participation Burden

What's physically and logistically required of participants.

Logistics & Travel
In-person visits

Requires travel to a study site

Physical Intervention
Oral

How treatment is administered

Treatment Assignment
Randomized & Blinded

You may get a placebo/standard care, and you won't know which.

Extracted study details

Pulled from the trial record to show what is being tested and what the study is measuring.

Drug classes

apixaban (Factor Xa inhibitor; prevents clot formation)

Drug routes

oral

Endpoints

Secondary: Change from baseline in Prothrombin Time (PT), Change from baseline in activated Partial Thromboplastin Time (aPTT), Incidence of Treatment-Emergent Adverse Events (TEAEs), Severity of TEAEs

Body systems

Cardiology / Heart