Medical Information Only. Always consult your healthcare provider before enrolling in any clinical trial.

NCT04519437 · ClinicalTrials.gov registry record · Phase 1

Study Assessing the Safety, Tolerability, Pharmacokinetics, and Immunogenicity of Repeated Subcutaneous Doses of Anti-Spike (S) SARS-CoV-2 Monoclonal Antibodies (REGN10933+REGN10987) in Adult Volunteers as Related to COVID-19

A Phase 1 study of Healthy and Chronic Stable Illness, sponsored by Regeneron Pharmaceuticals.

Completed
Registry status
Phase 1
Development phase
974
Enrollment target
7
Study locations

NCT04519437: Completed Phase 1 study of Healthy and Chronic Stable Illness, sponsored by Regeneron Pharmaceuticals.

NCT04519437 is a Phase 1 study of Healthy and Chronic Stable Illness that has completed, run by Regeneron Pharmaceuticals. The registered enrollment target is 974 participants, above the 646-participant average among 1,090 other Healthy trials with a reported enrollment target (51% higher). The trial reports 7 study locations across 7 states. According to ClinicalTrials.gov, the official US trial registry.

View on ClinicalTrials.gov ↗

View your shortlist →

The verdict

NCT04519437, a Phase 1 study of Healthy and Chronic Stable Illness, has completed, sponsored by Regeneron Pharmaceuticals.

COMPLETED
Registry status
Phase 1
Development phase
974 participants
Enrollment target
7
Study locations

Study 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

Interventions

  • DRUG Placebo
  • DRUG REGN10933+REGN10987

Study Locations (7)

Arizona

  • Regeneron Study Site - Tempe

Arkansas

  • Regeneron Study Site - Rogers

California

  • Regeneron Study Site - Sacramento

Florida

  • Regeneron Study Site - Miami

Nebraska

  • Regeneron Study Site - Lincoln

Ohio

  • Regeneron Study Site - Dayton

Texas

  • Regeneron Study Site - Austin

Trial Details

FieldValue
Enrollment Target 974 participants
Start Date 2020-07-26
Est. Completion 2021-11-22
Phase Phase 1
Regeneron Pharmaceuticals

280 total trials

What the finished NCT04519437 record still lists

NCT04519437 is an interventional study that assigns participants to a tested intervention. The registered 974 participants enrollment target is mid-sized for trials with a published cap, above the 646-participant average among 1,090 other Healthy trials with a reported enrollment target (51% higher).

The record links to 2 conditions, with Healthy appearing as the primary indexed condition, and to 2 interventions - of which Placebo is the first listed.

NCT04519437 lists 7 locations in 7 states (Arizona, Arkansas, California).

Frequently Asked Questions

What is clinical trial NCT04519437 about?

NCT04519437 is a clinical study titled "Study Assessing the Safety, Tolerability, Pharmacokinetics, and Immunogenicity of Repeated Subcutaneous Doses of Anti-Spike (S) SARS-CoV-2 Monoclonal Antibodies (REGN10933+REGN10987) in Adult Volunteers as Related to COVID-19". 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...

What is the current status of trial NCT04519437?

This trial is currently completed. It is a Phase 1 study. The enrollment target is 974 participants. The study started on 2020-07-26. Estimated completion is 2021-11-22.

What conditions does trial NCT04519437 study?

This clinical trial studies the following conditions: Healthy, Chronic Stable Illness.

What interventions are being tested in trial NCT04519437?

The interventions under investigation include: Placebo (DRUG), REGN10933+REGN10987 (DRUG).

Who is sponsoring clinical trial NCT04519437?

This trial is sponsored by Regeneron Pharmaceuticals, which has 280 total clinical trials registered on ClinicalTrials.gov.

Where is trial NCT04519437 being conducted?

This trial has 7 study locations across Arizona, Arkansas, California, Florida, Nebraska. Contact the study sites directly through ClinicalTrials.gov for enrollment availability.

Similar trials for Healthy

Matched on the same primary condition, ranked to surface studies in the same phase first, then by recruiting status, no relevance scoring or editorial curation.

Where NCT04519437's enrollment target sits among peer trials

974 31st of 1090 higher than 1,060 of 1,090 other Healthy trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other Healthy trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source ClinicalTrials.gov registry export · 2026-08-08

Nationwide trials with similar profiles

Cross-condition peers matched on enrollment target and registry start date, not the same-condition list above.

Similar enrollment target

  • NCT06948422 · 974 participants · Phase 3

    A Master Protocol for Orforglipron (LY3502970) in Participants With Hypertension and Obesity or Overweight: (ATTAIN-Hypertension Screening)

  • NCT05600777 · 975 participants · Phase 3

    A 24-Week Study of the Efficacy and Safety of BLU-5937 in Adults With Refractory Chronic Cough

  • NCT06541704 · 975 participants · Phase 3

    A Study Investigating Subcutaneously Administered Pozelimab in Combination With Cemdisiran or Cemdisiran Alone in Adult Participants With Geographic Atrophy

  • NCT06820736 · 975 participants · NA

    A Prospective, Randomized Comparison Of Drainage Techniques After One- Or Two-Level Open Posterior Lumbar Decompression Or Decompression And Fusion

Similar registry start date

  • NCT05962346 · started 2026-12 · NA

    Fetal Endoscopic Tracheal Occlusion for Congenital Diaphragmatic Hernia

  • NCT07125183 · started 2026-12 · Phase 2

    Study on Efficacy and Tolerability of Weekly Doxorubicin in Elderly Patients With Advanced or Metastatic Leiomyosarcoma

  • NCT07292298 · started 2026-11 · Phase 2

    Phase 2 Single-Arm Rectal Cancer Brachytherapy for Patients With Low-Lying Residual Adenocarcinoma After Total Neoadjuvant Therapy to Improve Organ Preservation Rates

  • NCT04263285 · started 2026-10 · NA

    Treatment of Depression Post-SCI

Source: ClinicalTrials.gov NCT04519437, the US trial registry maintained by the National Library of Medicine. NCT04519437 (mid enrollment · multi site footprint · completed) retrieved and formatted by PlainTrial, see methodology.