NCT04519437

Brief Summary

The primary objectives are:

  • To assess the occurrence of adverse events of special interest (AESIs) in participants treated with repeated subcutaneous (SC) doses of REGN10933+REGN10987 compared to placebo
  • To assess the concentrations of REGN10933 and REGN10987 in serum over time after single and repeated SC administration The secondary objectives are:
  • To assess the safety and tolerability of repeated SC doses of REGN10933+REGN10987 compared to placebo
  • To assess attainment of target concentrations of REGN10933 and REGN10987 in serum after single and repeated SC administration
  • To assess the immunogenicity of REGN10933 and REGN10987

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
974

participants targeted

Target at P75+ for phase_1 healthy

Timeline
Completed

Started Jul 2020

Longer than P75 for phase_1 healthy

Geographic Reach
1 country

7 active sites

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

July 24, 2020

Completed
2 days until next milestone

Study Start

First participant enrolled

July 26, 2020

Completed
24 days until next milestone

First Posted

Study publicly available on registry

August 19, 2020

Completed
1.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 22, 2021

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

November 22, 2021

Completed
Last Updated

January 26, 2022

Status Verified

January 1, 2022

Enrollment Period

1.3 years

First QC Date

July 24, 2020

Last Update Submit

January 10, 2022

Conditions

Keywords

Coronavirus disease 2019 (COVID-19)Severe acute respiratory syndrome coronavirus 2 (SARS-COV-2)

Outcome Measures

Primary Outcomes (8)

  • Incidence of adverse event of special interests (AESIs) that occur within 4 days of study drug administration

    Within 4 days postdose at Baseline

  • Incidence of adverse event of special interests (AESIs) that occur within 4 days of study drug administration

    Within 4 days postdose at Day 29

  • Incidence of adverse event of special interests (AESIs) that occur within 4 days of study drug administration

    Within 4 days postdose at Day 57

  • Incidence of adverse event of special interests (AESIs) that occur within 4 days of study drug administration

    Within 4 days postdose at Day 85

  • Incidence of adverse event of special interests (AESIs) that occur within 4 days of study drug administration

    Within 4 days postdose at Day 113

  • Incidence of adverse event of special interests (AESIs) that occur within 4 days of study drug administration

    Within 4 days postdose at Day 141

  • Concentrations of REGN10933 in serum over time

    Up to 52 weeks

  • Concentrations of REGN10987 in serum over time

    Up to 52 weeks

Secondary Outcomes (6)

  • Proportion of participants with treatment-emergent adverse events (TEAEs)

    Up to 52 weeks

  • Severity of TEAEs

    Up to 52 weeks

  • Proportion of participants who achieve or exceed target concentration in serum of REGN10933

    Up to 52 weeks

  • Proportion of participants who achieve or exceed target concentration in serum of REGN10987

    Up to 52 weeks

  • Immunogenicity as measured by anti-drug antibodies (ADA) to REGN10933

    Up to 52 weeks

  • +1 more secondary outcomes

Study Arms (2)

REGN10933+REGN10987

EXPERIMENTAL
Drug: REGN10933+REGN10987

Placebo

PLACEBO COMPARATOR
Drug: Placebo

Interventions

Administered subcutaneous (SC) every 4 weeks (Q4W)

Also known as: REGN-COV2, Casirivimab, Imdevimab, REGEN-COV™, Ronapreve™
REGN10933+REGN10987

Administered subcutaneous (SC) every 4 weeks (Q4W)

Placebo

Eligibility Criteria

Age18 Years - 90 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Is healthy or has chronic medical condition(s) that is stable and well controlled as per the opinion of the investigator and is not likely to require medical intervention through the end of study
  • Stable medication for co-morbid condition(s) for at least 6 months prior to screening
  • Willing and able to comply with study visits and study-related procedures, including compliance with site precautionary requirements related to SARS-CoV-2 infection and transmission

You may not qualify if:

  • Positive diagnostic test for SARS-CoV-2 infection ≤72 hours prior to randomization
  • Subject-reported clinical history of COVID-19 as determined by investigator
  • Subject-reported history of prior positive diagnostic test for SARS-CoV-2 infection
  • Active respiratory or non-respiratory symptoms suggestive or consistent with COVID-19
  • Medically attended acute illness, systemic antibiotics use, or hospitalization (ie, \>24 hours) for any reason within 30 days prior to screening
  • Acute exacerbation of a chronic pulmonary condition (eg, chronic obstructive pulmonary disease \[COPD\], asthma exacerbations) in the past 6 months prior to screening
  • Received investigational or approved SARS-CoV-2 vaccine
  • Received investigational or approved passive antibodies for SARS-CoV-2 infection prophylaxis as defined in the protocol
  • Use of remdesivir, intravenous immunoglobulin (IVIG), or other anti-SARS viral agents within 2 months prior to screening

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (7)

Regeneron Study Site

Tempe, Arizona, 85283, United States

Location

Regeneron Study Site

Rogers, Arkansas, 72758, United States

Location

Regeneron Study Site

Sacramento, California, 95864, United States

Location

Regeneron Study Site

Miami, Florida, 33014, United States

Location

Regeneron Study Site

Lincoln, Nebraska, 68502, United States

Location

Regeneron Study Site

Dayton, Ohio, 45417, United States

Location

Regeneron Study Site

Austin, Texas, 78705, United States

Location

Related Publications (2)

  • Hirsch C, Park YS, Piechotta V, Chai KL, Estcourt LJ, Monsef I, Salomon S, Wood EM, So-Osman C, McQuilten Z, Spinner CD, Malin JJ, Stegemann M, Skoetz N, Kreuzberger N. SARS-CoV-2-neutralising monoclonal antibodies to prevent COVID-19. Cochrane Database Syst Rev. 2022 Jun 17;6(6):CD014945. doi: 10.1002/14651858.CD014945.pub2.

  • Kreuzberger N, Hirsch C, Chai KL, Tomlinson E, Khosravi Z, Popp M, Neidhardt M, Piechotta V, Salomon S, Valk SJ, Monsef I, Schmaderer C, Wood EM, So-Osman C, Roberts DJ, McQuilten Z, Estcourt LJ, Skoetz N. SARS-CoV-2-neutralising monoclonal antibodies for treatment of COVID-19. Cochrane Database Syst Rev. 2021 Sep 2;9(9):CD013825. doi: 10.1002/14651858.CD013825.pub2.

MeSH Terms

Conditions

COVID-19

Interventions

casirivimab and imdevimab drug combinationcasirivimabimdevimab

Condition Hierarchy (Ancestors)

Pneumonia, ViralPneumoniaRespiratory Tract InfectionsInfectionsVirus DiseasesCoronavirus InfectionsCoronaviridae InfectionsNidovirales InfectionsRNA Virus InfectionsLung DiseasesRespiratory Tract Diseases

Study Officials

  • Clinical Trial Management

    Regeneron Pharmaceuticals

    STUDY DIRECTOR

Study Design

Study Type
interventional
Phase
phase 1
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

July 24, 2020

First Posted

August 19, 2020

Study Start

July 26, 2020

Primary Completion

November 22, 2021

Study Completion

November 22, 2021

Last Updated

January 26, 2022

Record last verified: 2022-01

Data Sharing

IPD Sharing
Will share

All Individual Patient Data (IPD) that underlie publicly available results will be considered for sharing

Shared Documents
STUDY PROTOCOL, SAP, ICF, CSR, ANALYTIC CODE
Time Frame
Individual anonymized participant data will be considered for sharing once the indication has been approved by a regulatory body, if there is legal authority to share the data and there is not a reasonable likelihood of participant re-identification.
Access Criteria
Qualified researchers may request access to anonymized patient level data or aggregate study data when Regeneron has received marketing authorization from major health authorities (e.g., FDA, European Medicines Agency \[EMA\], Pharmaceuticals and Medical Devices Agency \[PMDA\], etc) for the product and indication, has the legal authority to share the data, and has made the study results publicly available (eg, scientific publication, scientific conference, clinical trial registry).
More information

Locations