New pneumonia vaccine VAX-31 aims to boost protection in older adults

NCT ID NCT07425392

First seen Jun 27, 2026 · Last updated Jul 01, 2026 · Updated 2 times

Summary

This study tests a new vaccine called VAX-31 in adults aged 50 and older who have already received a pneumonia vaccine. The goal is to see if VAX-31 is safe and triggers a strong immune response. About 752 participants will receive either VAX-31 or an active comparator vaccine, and researchers will monitor side effects and antibody levels.

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This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.

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Conditions

The condition(s) this trial relates to.

pneumonia pneumococcal infection prevention target

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Locations

  • AMR

    Kansas City, Missouri, 64114, United States

  • Alcanza (Charlottesville Medical Research)

    Charlottesville, Virginia, 22911, United States

  • Avacare (CCT Research)

    Phoenix, Arizona, 85044, United States

  • CenExel (RCA)

    Hollywood, Florida, 33024, United States

  • Center of American Indian Health

    Gallup, New Mexico, 87301, United States

  • Chase Medical Research

    Waterbury, Connecticut, 06708, United States

  • Chinle Center for Indigenous Health

    Chinle, Arizona, 86503, United States

  • DM Clinical Research

    Sugar Land, Texas, 77478, United States

  • DM Clinical Research-Detroit

    Southfield, Michigan, 48076, United States

  • DelRicht Clinical Research

    Stockbridge, Georgia, 30281, United States

  • DelRicht Clinical Research

    New Orleans, Louisiana, 70115, United States

  • DelRicht Research

    Hendersonville, Tennessee, 37075, United States

  • DelRicht Research (Command Family Medicine)

    Springfield, Missouri, 65807, United States

  • Eximia (Health Awareness)

    Jupiter, Florida, 33458, United States

  • Eximia (Health Awareness)

    Port Saint Lucie, Florida, 34952, United States

  • Flourish Research

    San Antonio, Texas, 78229, United States

  • Headlands (Trial Management Associates)

    Wilmington, North Carolina, 28403, United States

  • Health Research of Hampton Roads, Inc.

    Newport News, Virginia, 23606, United States

  • Johnson County Clin-Trials, LLC

    Lenexa, Kansas, 66219, United States

  • Precision Clinical Research

    Sunrise, Florida, 33351, United States

  • Quality Clinical Research

    Omaha, Nebraska, 68114, United States

  • REX Clinical Trials

    Beaumont, Texas, 77701, United States

  • Rochester Clinical Research, Inc.

    Rochester, New York, 14609, United States

  • Shiprock Center for Indigenous Health

    Shiprock, New Mexico, 87420, United States

  • Tekton Research

    Edmond, Oklahoma, 73013, United States

  • Tekton Research

    Austin, Texas, 78745, United States

  • The Villages

    The Villages, Florida, 32162, United States

  • Velocity (Meridian Clinical Research)

    Rockville, Maryland, 20854, United States

  • Velocity Clinical Valparaiso

    Valparaiso, Indiana, 46383, United States

  • Whiteriver Center for Indigenous Health

    Whiteriver, Arizona, 85941, United States