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A Phase 2, Multicenter, Randomized, Open-label, Active-Control Study of REGN7508, a Factor XI Monoclonal Antibody, for the Prevention of Venous Thromboembolism in Participants Undergoing an Elective, Unilateral, Total Knee Arthroplasty (ROXI-VTE II)

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
EU CTIS
Registry ID
CTIS2023-508602-14-00
Acronym
R7508-DVT-2360
Enrollment
180
Registered
2024-05-31
Start date
2024-06-27
Completion date
2025-01-08
Last updated
2024-09-30

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Thromboembolic disease

Brief summary

Incidence of confirmed, adjudicated VTE through day 12

Detailed description

Incidence of major bleeding up to approximately day 12, Incidence of clinically relevant non-major (CRNM) bleeding up to approximately day 12, Incidence of treatment emergent adverse events (TEAEs) through end of study; approximately day 75, Incidence of major VTE through day 12, Incidence of Deep venous thrombosis (DVT) at approximately day 12, Concentrations of REGN7508 in serum through end of study; approximately day 75, Change in activated partial thromboplastin time (aPTT) baseline to end of study; approximately day 75, Change in prothrombin time (PT) baseline to end of study; approximately day 75, Incidence of anti-drug antibodies (ADA) to REGN7508 through end of study; approximately day 75, Titer of ADA to REGN7508 through end of study; approximately day 75

Interventions

Sponsors

Regeneron Pharmaceuticals Inc.
Lead SponsorINDUSTRY

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Design outcomes

Primary

MeasureTime frame
Incidence of confirmed, adjudicated VTE through day 12

Secondary

MeasureTime frame
Incidence of major bleeding up to approximately day 12, Incidence of clinically relevant non-major (CRNM) bleeding up to approximately day 12, Incidence of treatment emergent adverse events (TEAEs) through end of study; approximately day 75, Incidence of major VTE through day 12, Incidence of Deep venous thrombosis (DVT) at approximately day 12, Concentrations of REGN7508 in serum through end of study; approximately day 75, Change in activated partial thromboplastin time (aPTT) baseline to end of study; approximately day 75, Change in prothrombin time (PT) baseline to end of study; approximately day 75, Incidence of anti-drug antibodies (ADA) to REGN7508 through end of study; approximately day 75, Titer of ADA to REGN7508 through end of study; approximately day 75

Countries

Bulgaria, Hungary, Latvia, Lithuania, Poland

Outcome results

None listed

Source: EU CTIS · Data processed: Feb 4, 2026