Can antibodies and vaccine work together? new study investigates

NCT ID NCT04852978

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study looked at whether giving Regeneron's antibody treatment (casirivimab+imdevimab) along with the Moderna COVID-19 vaccine changes how well the vaccine works. About 295 healthy adults took part. Researchers measured immune responses and checked safety to see if the timing between the antibody shot and the vaccine matters.

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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

  • Regeneron Research Site

    Little Rock, Arkansas, 72211, United States

  • Regeneron Research Site

    Rogers, Arkansas, 72758, United States

  • Regeneron Research Site

    Hialeah, Florida, 33012, United States

  • Regeneron Research Site

    Miami, Florida, 33186, United States

  • Regeneron Research Site

    Orlando, Florida, 32789, United States

  • Regeneron Research Site

    Dayton, Ohio, 45417, United States

More trials for these conditions

Other studies related to the condition(s) this trial covers.