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临床试验/NCT07626411
NCT07626411招募中3 期

A Phase 3, Randomized, Multicenter, Double-blind Study to Assess Stroke and Systemic Embolism Prevention With REGN7508, a Monoclonal Antibody Against Factor XI, Versus Apixaban in Participants With Atrial Fibrillation (ROXI-EVEREST)

Regeneron Pharmaceuticals32 个研究点 分布在 1 个国家目标入组 15,364 人开始时间: 2026年8月10日最近更新:
干预措施

试验速览

阶段
3 期
状态
招募中
入组人数
15,364
试验地点
32

研究概览

简要总结

This study is researching an experimental drug called REGN7508 (called "study drug") and how it compares against another treatment called apixaban. The study is focused on people who have atrial fibrillation, which means that the heart beats too fast and unevenly.

The aim of the study is to see how safe and effective REGN7508 is in preventing stroke and/or systemic embolism in participants with atrial fibrillation and how it compares against participants that will receive apixaban in this study.

The study is looking at several other research questions, including:

  • What side effects may happen from taking the study drug
  • Whether the body makes antibodies against the study drug (which could make the study drug less effective or could lead to side effects)

研究设计

研究类型
Interventional
分配方式
Randomized
干预模型
Parallel
主要目的
Prevention
盲法
Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)

入排标准

年龄范围
18 Years 至 —(Adult, Older Adult)
性别
All
接受健康志愿者

入选标准

  • Has AF or flutter (paroxysmal or persistent), not considered to be secondary to a reversible cause, and an indication for indefinite anticoagulation treatment as described in the protocol
  • Meets one of the following:
  • CHA2DS2-VA [C: Congestive heart failure; H: Hypertension; A2: Age ≥75 years (double points); D: Diabetes mellitus; S2: Stroke or TIA or Systemic embolism (double points); V: Vascular disease; A: Age 65-74 years] score ≥2 and Oral Anticoagulant (OAC) naïve OR
  • CHA2DS2-VA score ≥3 OR
  • CHA2DS2-VA score of 2 AND at least 1 enrichment criteria as described in the protocol
  • Must have an International Normalized Ratio (INR) <2.5 at the time of randomization if taking warfarin or another Vitamin K Antagonist (VKA)

排除标准

  • Has a mechanical heart valve prosthesis (Note: transcatheter aortic valve replacement is not an exclusion)
  • Has known moderate-to-severe mitral stenosis
  • Has had a successful ablation therapy without documented recurrent AF or a participant after Left Atrial Appendage (LAA) occlusion/exclusion or plan for ablation or LAA occlusion/exclusion within the next 6 months starting from randomization
  • Had an ischemic stroke within 2 days prior to randomization
  • Has persistent, uncontrolled hypertension (per investigator's discretion)
  • Has estimated Glomerular Filtration Rate (eGFR) <15 mL/min/1.73m2 within 30 days prior to randomization or is on dialysis or expected to be started on dialysis within the next 6 months starting from randomization
  • Note: Other protocol-defined Inclusion/ Exclusion criteria apply

研究组 & 干预措施

REGN7508 + Placebo

Experimental

干预措施: REGN7508 (Drug)

Apixaban + Placebo

Active Comparator

干预措施: Apixaban (Drug)

REGN7508 + Placebo

Experimental

干预措施: Placebo (Drug)

Apixaban + Placebo

Active Comparator

干预措施: Placebo (Drug)

研究者

申办方类型
Industry
责任方
Sponsor

研究点 (32)

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