New mRNA vaccine aims to tame genital herpes recurrences

NCT ID NCT06033261

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

Summary

This study tested an experimental mRNA vaccine (mRNA-1608) in 303 healthy adults aged 18 to 55 with recurrent genital herpes caused by HSV-2. The goal was to see if the vaccine is safe and can reduce the number of outbreaks. Participants received different doses of the vaccine or a placebo, and researchers tracked side effects and recurrence episodes over six months.

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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

  • Accel Clinical Sites Network - Cahaba Medical Care

    Birmingham, Alabama, 35218, United States

  • Acclaim Clinical Research

    San Diego, California, 92120, United States

  • Alliance for Multispecialty Research, LLC

    Newton, Kansas, 67114, United States

  • Cedars-Sinai Medical Center/Carbon Health

    Beverly Hills, California, 90211, United States

  • DM Clinical Research

    Southfield, Michigan, 48076, United States

  • DM Clinical Research

    Houston, Texas, 77081, United States

  • DM Clinical Research

    Tomball, Texas, 77064, United States

  • Fenway Health

    Boston, Massachusetts, 02215, United States

  • Health Research of Hampton Roads

    Newport News, Virginia, 23606, United States

  • Helios CR, Inc Fort Worth

    Fort Worth, Texas, 76107, United States

  • Johnson County Clin-Trials (JCCT)

    Lenexa, Kansas, 66219, United States

  • M3 Wake Research, Inc.

    Raleigh, North Carolina, 27612, United States

  • Multi-Specialty Research Associates, Inc.

    Lake City, Florida, 32055, United States

  • Noble Clinical Research

    Tucson, Arizona, 85704, United States

  • Research Works

    New Orleans, Louisiana, 70125, United States

  • Rochester Clinical Research

    Rochester, New York, 14609, United States

  • Sun Research Institute

    San Antonio, Texas, 78215, United States

  • Suncoast Research Associates, LLC

    Miami, Florida, 33173, United States

  • University of Washington Virology Research Clinic

    Seattle, Washington, 98104, United States

  • Velocity Clinical Research

    Grand Island, Nebraska, 68803, United States

  • Velocity Clinical Research

    Norfolk, Nebraska, 68701, United States

  • Velocity Clinical Research Cleveland

    Beachwood, Ohio, 44122, United States

  • Velocity Clinical Research, Austin

    Cedar Park, Texas, 78613, United States

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