REGN7508 Versus Apixaban and Enoxaparin for Thromboprophylaxis After Total Knee Arthroplasty in Adults

Trial statusRecruiting
Trial phasePhase 3
Trial typeInterventional
Biological sexAll
Age18+
SponsorRegeneron Pharmaceuticals

About this trial

This study is researching an experimental drug called REGN7508 (called "study drug"). The study is focused on adults undergoing elective, unilateral (one side) total knee replacement surgery.

The aim of the study is to see how effective the study drug is at preventing Venous Thromboembolism (VTE) and other related diseases after total knee replacement surgery.

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

* What side effects may happen from taking the study drug * How much study drug is in the blood at different times * Whether the body makes antibodies against the study drug (which could make the study drug less effective or could lead to side effects)

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Is undergoing a primary elective unilateral TKA

Is in good health based on laboratory safety testing as described in the protocol

Body weight ≤130 kg at screening visit as described in the protocol

Disqualifiers

Any condition that, as assessed by the investigator, may confound the results of the study or pose an additional risk to the participant by study participation

History of bleeding in the 6 months prior to randomization requiring hospitalization or transfusion as described in the protocol

History of thromboembolic disease or thrombophilia

History of major surgery, including brain, spinal, or ocular, or major trauma within approximately the past 6 months prior to randomization

Trial design

Design model

Parallel

Treatments tested in this trial

  • REGN7508

    Drug

    Administered per the protocol

  • Apixaban

    Drug

    Administered per the protocol

  • Enoxaparin

    Drug

    Administered per the protocol

  • Placebo

    Drug

    Administered per the protocol

Treatment groups

2,000 Participants
are divided into 4 treatment groups
Group A: IV REGN7508Experimental treatment 1 intervention
Group B: IV Placebo, SC REGN7508Experimental treatment 2 interventions
Group C: IV Placebo, apixabanActive comparator 2 interventions
Group D: IV Placebo, enoxaparinActive comparator 2 interventions

Trial outcomes

Primary outcomes

1

Incidence of the composite endpoint of asymptomatic or symptomatic Venous Thromboembolism (VTE) [including VTE-related death]

Time frame
Through day 12 visit, approximately 14 days

Secondary outcomes

1

Time-to-first event of the composite endpoint of asymptomatic or symptomatic VTE (including VTE-related death)

Time frame
Through day 12 visit, approximately 14 days
2

Incidence of confirmed symptomatic Deep Venous Thrombosis (DVT)

Time frame
Through day 12 visit, approximately 14 days
3

Incidence of confirmed Pulmonary Embolism (PE)

Time frame
Through day 12 visit, approximately 14 days
4

Incidence of VTE-related death

Time frame
Through day 12 visit, approximately 14 days

Other outcomes

Sponsors and contacts

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