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Purpose

Phase 1 - To evaluate the safety and tolerability of REGN10933+REGN10987 compared to placebo - To evaluate the virologic efficacy of REGN10933+REGN10987 compared to placebo in reducing viral load of SARS-CoV-2 Phase 2 • To evaluate the virologic efficacy of REGN10933+REGN10987 compared to placebo in reducing viral load of SARS-CoV-2 Phase 3 - Cohort 1 (≥18 Years Old, Not Pregnant at Randomization) • To evaluate the clinical efficacy of REGN10933+REGN10987 compared to placebo as measured by COVID-19-related hospitalizations or all-cause death - Cohort 2 (<18 Years Old, Not Pregnant at Randomization) - To evaluate the safety and tolerability of REGN10933+REGN10987 compared to placebo - To further characterize the concentrations of REGN10933 and REGN10987 in serum over time - Cohort 3 (Pregnant at Randomization) • To evaluate the safety and tolerability of REGN10933+REGN10987

Condition

Eligibility

Eligible Ages
All ages
Eligible Genders
All
Accepts Healthy Volunteers
No

Inclusion Criteria

  • Has SARS-CoV-2-positive diagnostic test (from a sample collected ≤72 hours prior to randomization, using a validated SARS-CoV-2 antigen, RT-PCR, or other molecular diagnostic assay, and an appropriate sample such as nasopharyngeal [NP], nasal, oropharyngeal [OP], or saliva) - Has symptoms consistent with COVID-19, as determined by the investigator, with onset ≤7 days before randomization - Maintains O2 saturation ≥93% on room air - Is able to understand and complete study-related questionnaires (patients aged ≥12 years only)

Exclusion Criteria

  • Was admitted to a hospital for COVID-19 prior to randomization, or is hospitalized (inpatient) for any reason at randomization - Has participated, or is participating, in a clinical research study evaluating COVID-19 convalescent plasma, mAbs against SARS-CoV-2 (eg, bamlanivimab), or intravenous immunoglobulin (IVIG) within 3 months or within 5 half-lives of the investigational product (whichever is longer) prior to the screening visit - Prior, current, or planned future use of any of the following treatments: COVID-19 convalescent plasma, mAbs against SARS-CoV-2 (eg, bamlanivimab), IVIG (any indication), systemic corticosteroids (any indication), or COVID-19 treatments (authorized, approved, or investigational) - Prior use (prior to randomization), current use (at randomization) or planned use (within 90 days of study drug administration or per current CDC recommendations, as applicable) of any authorized or approved vaccine for COVID-19 - Has participated, is participating or plans to participate in a clinical research study evaluation any authorized, approved or investigational vaccine for COVID-19 NOTE: Other Protocol defined Inclusion/Exclusion criteria apply

Study Design

Phase
Phase 3
Study Type
Interventional
Allocation
N/A
Intervention Model
Single Group Assignment
Intervention Model Description
Phase 1/Phase 2/Phase 3
Primary Purpose
Treatment
Masking
None (Open Label)

Arm Groups

ArmDescriptionAssigned Intervention
Experimental
casirivimab+imdevimab low dose 		Low dose or body-weight equivalent for those under 18 years of age.
  • Drug: casirivimab+imdevimab combination therapy
    Administered intravenously (IV) single dose
    Other names:
    • REGN-COV2
    • REGN10933
    • REGN10987
    • REGEN-COV™
    • Ronapreve™

Recruiting Locations

More Details

NCT ID
NCT04425629
Status
Terminated
Sponsor
Regeneron Pharmaceuticals

Notice

Study information shown on this site is derived from ClinicalTrials.gov (a public registry operated by the National Institutes of Health). The listing of studies provided is not certain to be all studies for which you might be eligible. Furthermore, study eligibility requirements can be difficult to understand and may change over time, so it is wise to speak with your medical care provider and individual research study teams when making decisions related to participation.