COVID antibody study for vulnerable kids halted early
NCT ID NCT04992273
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tested a single injection of two lab-made antibodies (casirivimab and imdevimab) in children under 12 who are at high risk for severe COVID-19. The goal was to see how the drug behaves in the body, if it is safe, and if it triggers an immune response. Only 7 children took part before the study was stopped early.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 2
Tests whether the treatment actually works, and watches for side effects, in a larger group.
- Participants
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7 people
The number who actually took part.
- Started
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Sep 2021
- Finished
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Jun 2022
- Lead sponsor
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A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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1 minute to 12 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Key Inclusion Criteria: 1. Is \<12 years of age and ≥3 kg to \<40 kg at the time parental/guardian consent is signed 2. Has at least one risk factor for developing severe COVID-19 if they were to become infected, such as: 1. Obesity (BMI \[kg/m2\] ≥95th percentile for age and sex based on CDC growth charts) 2. Cardiovascular disease 3. Chronic lung disease 4. Type 1 or type 2 diabetes mellitus 5. Chronic kidney disease, including those on dialysis 6. Chronic liver disease 7. Immunocompromised or immunodeficient, based on Investigator's assessment (examples include cancer treatment, bone marrow or organ transplantation, immune deficiencies, HIV infection, sickle cell anemia, thalassemia, and prolonged use of immune-weakening medications) 8. Medical complexities (examples include any underlying genetic condition, neurologic condition, metabolic condition, or congenital heart disease) 9. Any other condition deemed by the Investigator to be a risk factor for severe COVID-19 Key Exclusion Criteria: 1. Has positive diagnostic test for SARS-CoV-2 infection from a sample collected during screening ≤7 days prior to study drug administration Note: The sample for the test should be collected ≤7 days within study drug administration, and the result should be reviewed and confirmed negative prior to dosing. Historical records will not be accepted. 2. Has active respiratory or non-respiratory symptoms consistent with COVID-19 in the opinion of the Investigator 3. Has subject-reported clinical history of COVID-19, as determined by Investigator, within the last 90 days 4. Has subject-reported history of prior Emergency Use Authorization (EUA)/approved positive diagnostic test for SARSCoV-2 infection within the last 90 days 5. Is currently hospitalized or was hospitalized for \>24 hours for any reason within 14 days of the screening visit 6. Prior use (within 90 days prior to study drug administration) or current use of any investigational, authorized, or approved passive antibody for prophylaxis of SARS-CoV-2 infection, including convalescent plasma, convalescent sera, hyperimmune globulin, or other monoclonal antibodies (eg, bamlanivimab and etesevimab, sotrovimab) 7. Has initiated vaccination for SARS-CoV-2 with an investigational or approved vaccine, but has not completed the vaccine schedule as recommended by the vaccine manufacturer. 8. Plans to receive an investigational or approved SARS-CoV-2 vaccine within 90 days after study drug administration, or per the recommended time frame from the current Centers for Disease Control vaccination guidelines (CDC, 2021b) NOTE: Other protocol-defined Inclusion/ Exclusion Criteria apply
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Advanced Research Center, Inc
Anaheim, California, 92805, United States
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Batchelor's Children's Research Institute
Miami, Florida, 33136, United States
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Coastal Pediatric Research
Charleston, South Carolina, 29414, United States
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Jacobi Medical Center
The Bronx, New York, 10461, United States
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Regeneron Research Site
Richmond, Virginia, 23226, United States
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SUNY Upstate Medical University
Syracuse, New York, 13210, United States
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Stony Brook University Hospital
Stony Brook, New York, 11794, United States
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- Does COVID-19 hide in the gut? scientists probe stool for clues
- Blood samples and health records could reveal why some COVID-19 cases turn severe
- Home antibody tests put to the test: can you read your own COVID-19 result?
- Can lung ultrasound reveal COVID-19's signature in the lungs?
- When the immune system Can't fight back: tracking three respiratory viruses
- The household maze: how does COVID-19 move between family members?