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Completed Phase 3 Interventional Accepts healthy volunteers Results available

COVID-19 Study Assessing the Efficacy and Safety of Anti-Spike SARS CoV-2 Monoclonal Antibodies for Prevention of SARS CoV-2 Infection Asymptomatic in Healthy Adults and Adolescents Who Are Household Contacts to an Individual With a Positive SARS-CoV-2 RT-PCR Assay

ClinicalTrials.gov ID: NCT04452318

Public ClinicalTrials.gov record NCT04452318. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Oct 17, 2026, 8:23 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

A Phase 3, Randomized, Double-Blind, Placebo-Controlled Study Assessing the Efficacy and Safety of Anti-Spike SARS-CoV-2 Monoclonal Antibodies in Preventing SARS-CoV-2 Infection in Household Contacts of Individuals Infected With SARS-CoV-2

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

Primary Objectives: Cohort A: • To evaluate the efficacy of REGN10933+REGN10987 compared to placebo in preventing symptomatic SARS-CoV-2 infection (broad-term) confirmed by RT-qPCR Cohort A and Cohort A1: • To evaluate the safety and tolerability of REGN10933+REGN10987 following subcutaneous (SC) administration compared to placebo Cohort B • To evaluate the efficacy of REGN10933+REGN10987 compared to placebo in preventing COVID-19 symptoms (broad-term) Cohort B and Cohort B1 • To evaluate the safety and tolerability of REGN10933+REGN10987 following SC administration compared to placebo

Study identification

NCT ID
NCT04452318
Recruitment status
Completed
Study type
Interventional
Phase
Phase 3
Lead sponsor
Regeneron Pharmaceuticals
Industry
Enrollment
3,303 participants

Conditions and interventions

Interventions

Drug

Eligibility (public fields only)

Age range
1 Day and older
Sex
All
Healthy volunteers
Accepts healthy volunteers

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Jul 13, 2020 (Actual)
Primary completion
Oct 4, 2021 (Actual)
Completion
Oct 4, 2021 (Actual)
Last update posted
May 15, 2023

2020 – 2021

United States locations

U.S. sites
132
U.S. states
29
U.S. cities
97
Facility City State ZIP Site status
Regeneron Study Site Mesa Arizona 85210 —
Regeneron Study Site Tucson Arizona 85712 —
Regeneron Study Site Tucson Arizona 85724 —
Regeneron Study Site La Mesa California 91942 —
Regeneron Study Site La Palma California 90623 —
Regeneron Study Site Long Beach California 90806 —
Regeneron Study Site Los Angeles California 90035 —
Regeneron Study Site Los Angeles California 90036 —
Regeneron Study Site Los Angeles California 90095 —
Regeneron Study Site Montclair California 91763 —
Regeneron Study Site Northridge California 91324 —
Regeneron Study Site Oxnard California 93030 —
Regeneron Study Site Sacramento California 95817 —
Regeneron Study Site Sacramento California 95821 —
Regeneron Study Site San Diego California 92108 —
Regeneron Study Site San Francisco California 94127 —
Regeneron Study Site Stanford California 94305 —
Regeneron Study Site Torrance California 90502 —
Regeneron Study Site Torrance California 90505 —
Regeneron Study Site Aurora Colorado 80045 —
Regeneron Study Site Colorado Springs Colorado 80907 —
Regeneron Study Site Washington D.C. District of Columbia 20005 —
Regeneron Study Site Boca Raton Florida 33487 —
Regeneron Study Site Clearwater Florida 33756 —
Regeneron Study Site DeLand Florida 32720 —
Regeneron Study Site Ft. Pierce Florida 34982 —
Regeneron Study Site Hialeah Florida 33010 —
Regeneron Study Site Jacksonville Florida 32216 —
Regeneron Study Site Lakeland Florida 33810 —
Regeneron Study Site Loxahatchee Groves Florida 33470 —
Regeneron Study Site Maitland Florida 32751 —
Regeneron Study Site Miami Florida 33012 —
Regeneron Study Site Miami Florida 33125 —
Regeneron Study Site Miami Florida 33126 —
Regeneron Study Site Miami Florida 33136 —
Regeneron Study Site Miami Florida 33144 —
Regeneron Study Site Miami Florida 33184 —
Regeneron Study Site Miami Florida 33186 —
Regeneron Study Site Orlando Florida 32803 —
Regeneron Study Site Sarasota Florida 34239 —
Regeneron Study Site Tampa Florida 33612 —
Regeneron Study Site West Palm Beach Florida 33407 —
Regeneron Study Site Winter Park Florida 32789 —
Regeneron Study Site Atlanta Georgia 30303 —
Regeneron Study Site Atlanta Georgia 30322 —
Regeneron Study Site Columbus Georgia 31904 —
Regeneron Study Site Decatur Georgia 30030 —
Regeneron Study Site Eatonton Georgia 31024 —
Regeneron Study Site Marietta Georgia 30060 —
Regeneron Study Site Sandy Springs Georgia 30328 —
Regeneron Study Site Chicago Illinois 60607 —
Regeneron Study Site 2 Chicago Illinois 60612 —
Regeneron Study Site 3 Chicago Illinois 60612 —
Regeneron Study Site Chicago Illinois 60612 —
Regeneron Study Site 1 Downers Grove Illinois 60515 —
Regeneron Study Site 2 Downers Grove Illinois 60515 —
Regeneron Study Site Ames Iowa 50010-3014 —
Regeneron Study Site Lake Charles Louisiana 70601 —
Regeneron Study Site Marrero Louisiana 70072 —
Regeneron Study Site Metairie Louisiana 70006 —
Regeneron Study Site New Orleans Louisiana 70112 —
Regeneron Study Site Baltimore Maryland 21201 —
Regeneron Study Site Boston Massachusetts 02111 —
Regeneron Study Site Boston Massachusetts 02114 —
Regeneron Study Site Boston Massachusetts 02115 —
Regeneron Study Site Boston Massachusetts 02118 —
Regeneron Study Site Boston Massachusetts 02215 —
Regeneron Study Site Detroit Michigan 48202 —
Regeneron Study Site Royal Oak Michigan 48073 —
Regeneron Study Site Minneapolis Minnesota 55455 —
Regeneron Study Site Gulfport Mississippi 39503 —
Regeneron Study Site Jackson Mississippi 39216 —
Regeneron Study Site Hazelwood Missouri 63042 —
Regeneron Study Site St Louis Missouri 63110 —
Regeneron Study Site Las Vegas Nevada 89104 —
Regeneron Study Site Las Vegas Nevada 89109 —
Regeneron Study Site Morristown New Jersey 07960 —
Regeneron Study Site Newark New Jersey 07103 —
Regeneron Study Site Summit New Jersey 07901 —
Regeneron Study Site Teaneck New Jersey 07666-4245 —
Regeneron Study Site Buffalo New York 14203 —
Regeneron Study Site New York New York 10016 —
Regeneron Study Site New York New York 10027 —
Regeneron Study Site New York New York 10029 —
Regeneron Study Site New York New York 10032 —
Regeneron Study Site New York New York 10037 —
Regeneron Study Site New York New York 10065 —
Regeneron Study Site 1 The Bronx New York 10451 —
Regeneron Study Site 2 The Bronx New York 10451 —
Regeneron Study Site The Bronx New York 10461 —
Regeneron Study Site Chapel Hill North Carolina 27599 —
Regeneron Study Site Charlotte North Carolina 28209 —
Regeneron Study Site Fayetteville North Carolina 28304 —
Regeneron Study Site Raleigh North Carolina 27612 —
Regeneron Study Site Wilmington North Carolina 28401 —
Regeneron Study Site Winston-Salem North Carolina 27103 —
Regeneron Study Site Cincinnati Ohio 45267-0405 —
Regeneron Study Site Columbus Ohio 43210 —
Regeneron Study Site Columbus Ohio 43215 —
Regeneron Study Site Dayton Ohio 45432 —
Regeneron Study Site Danville Pennsylvania 17822 —
Regeneron Study Site Philadelphia Pennsylvania 19104 —
Regeneron Study Site Philadelphia Pennsylvania 19140 —
Regeneron Study Site Wilkes-Barre Pennsylvania 18711 —
Regeneron Study Site Providence Rhode Island 02906 —
Regeneron Study Site Charleston South Carolina 29406 —
Regeneron Study Site Charleston South Carolina 29425 —
Regeneron Study Site Clinton South Carolina 29325 —
Regeneron Study Site Gaffney South Carolina 29340 —
Regeneron Study Site Sioux Falls South Dakota 57105 —
Regeneron Study Site Chattanooga Tennessee 37421 —
Regeneron Study Site Knoxville Tennessee 37920 —
Regeneron Study Site Memphis Tennessee 38103 —
Regeneron Study Site Nashville Tennessee 37232 —
Regeneron Study Site Bellaire Texas 77401 —
Regeneron Study Site Corpus Christi Texas 78413 —
Regeneron Study Site Dallas Texas 75224 —
Regeneron Study Site Houston Texas 77008 —
Regeneron Study Site Houston Texas 77024 —
Regeneron Study Site Houston Texas 77026 —
Regeneron Study Site Houston Texas 77057 —
Regeneron Study Site Houston Texas 77093 —
Regeneron Study Site Pearland Texas 77584 —
Regeneron Study Site Red Oak Texas 75154 —
Regeneron Study Site San Antonio Texas 78249 —
Regeneron Study Site Tyler Texas 75701 —
Regeneron Study Site Charlottesville Virginia 22903 —
Regeneron Study Site Richmond Virginia 23298 —
Regeneron Study Site Everett Washington 98201 —
Regeneron Study Site Seattle Washington 98104 —
Regeneron Study Site Yakima Washington 98902 —
Regeneron Study Site Madison Wisconsin 53792 —

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

Non-U.S. locations

This page focuses on the U.S. directory. The official record also lists 2 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT04452318, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted May 15, 2023 · Synced Oct 17, 2026

Related: full search, browse by condition, browse by drug or therapy, browse by sponsor, browse by U.S. city.

Open the official record

The complete public registry record, listed eligibility criteria, and available contact information for NCT04452318 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →