COVID-19 Study of Pharmacokinetics, Safety, Tolerability, and Efficacy of Intravenous Anti-Spike(s) SARS-CoV-2 Monoclonal Antibodies (Casirivimab+Imdevimab) for the Treatment of Pediatric Patients Hospitalized Due to COVID-19

NCT ID: NCT05092581

Last Updated: 2025-10-14

Basic Information

• Recruitment Status: TERMINATED
• Clinical Phase: PHASE1
• Total Enrollment: 2 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2021-12-16
• Study Completion Date: 2022-06-09

Brief Summary

The primary objectives of the study are:

• To characterize the concentrations of casirivimab+imdevimab in serum over time
• To evaluate the safety and tolerability of casirivimab+imdevimab

The secondary objective of the study is:

• To assess the immunogenicity of casirivimab+imdevimab

Conditions

COVID-19

Study Design

• Allocation Method: NA
• Intervention Model: SINGLE_GROUP
• Primary Study Purpose: TREATMENT
• Blinding Strategy: NONE

Study Groups

casirivimab+imdevimab

Group Type: EXPERIMENTAL

casirivimab+imdevimab

Intervention Type: DRUG

Single dose weight-based equivalent administered intravenously (IV)

Interventions

casirivimab+imdevimab

Single dose weight-based equivalent administered intravenously (IV)

Intervention Type: DRUG

Other Intervention Names

REGN-COV2; REGN10933; REGN10987; REGEN-COV™; Ronapreve™

Eligibility Criteria

Inclusion Criteria

1. Has SARS-CoV-2 positive antigen or molecular diagnostic test ≤72 hours prior to study enrollment Note: historical record of positive result is acceptable as long as the sample was collected ≤72 hours prior to enrollment

2. Has symptoms consistent with COVID-19, as determined by the investigator, with onset ≤ 14 days before dosing

3. Hospitalized due to COVID-19

4. Provide informed consent signed by study patient or legally acceptable representative/guardian

Exclusion Criteria

1. In the opinion of the investigator, unlikely to survive for >96 hours from screening

2. Neonates having gestational age of <29 weeks and weight <1.1 kg

3. Receiving extracorporeal membrane oxygenation (ECMO)

4. Has new-onset stroke or seizure disorder during hospitalization

5. Initiated on renal replacement therapy due to COVID-19

6. Has circulatory shock requiring vasopressors on dosing day Note: Patients who require vasopressors for sedation-related hypotension or reasons other than circulatory shock may be eligible in this study

7. Participation in a clinical research study, including any double-blind study, evaluating an investigational product within 30 days and less than 5 half-lives of the investigational product prior to the screening visit

8. Members of the clinical site study team and/or their immediate family

9. Plans to receive an investigational or approved SARS-CoV-2 vaccine within 90 days after study drug administration based on current Centers for Disease Control vaccination guidelines (CDC, 2021). Refer to the latest CDC guidance for any updates.

Note: Patients who have already completed vaccination prior to study enrollment may be allowed in the study.

10. 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)

• Minimum Eligible Age: 1 Minute
• Maximum Eligible Age: 17 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

Regeneron Pharmaceuticals

INDUSTRY

Sponsor Role: lead

Responsible Party

Responsibility Role: SPONSOR

Principal Investigators

Clinical Trial Management

Role: STUDY_DIRECTOR

Regeneron Pharmaceuticals

Locations

State University of New York at Stony Brook

Stony Brook, New York, United States

Le Bonheur Children's Hospital

Memphis, Tennessee, United States

Countries

United States

Other Identifiers

2021-004535-84

Identifier Type: EUDRACT_NUMBER

Identifier Source: secondary_id

R10933-10987-COV-2114

Identifier Type: -

Identifier Source: org_study_id