New pneumonia vaccine shows promise in older adults
NCT ID NCT04583618
First seen Jun 26, 2026 · Last updated Jun 26, 2026 · Updated 1 time
Summary
This study tested three new pneumococcal vaccine formulations in 750 healthy adults aged 50 to 84. The goal was to see how well they trigger an immune response and how safe they are compared to two existing vaccines. Participants received a single shot, and researchers measured antibody levels and tracked side effects for one month.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
Active substance
Pneumococcal conjugate vaccine (SP0202 formulations)
What this could lead to
If successful, this could lead to a new vaccine option that protects older adults against pneumococcal disease, potentially offering broader or stronger immunity than current vaccines.
What could go wrong
This is a Phase 2 trial, so results are preliminary. The new vaccine may not prove more effective or safer than existing ones in larger Phase 3 studies.
Disclaimer
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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.
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.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
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Locations
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Advanced Clinical Research - Magic View Site Number : 8400003
Meridian, Idaho, 83642, United States
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Aventiv Research Columbus Site Number : 8400007
Columbus, Ohio, 43213, United States
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Be Well Clinical Studies Site Number : 8400018
Lincoln, Nebraska, 68516, United States
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Biotrial Inc Site Number : 8400006
Newark, New Jersey, 07103, United States
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Coastal Carolina Research Center - N Charleston Site Number : 8400004
North Charleston, South Carolina, 29405, United States
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Emmaus Research Center, Inc Site Number : 8400014
Anaheim, California, 92804, United States
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JBR Clinical Research Site Number : 8400008
Salt Lake City, Utah, 84107, United States
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Jacksonville Center for Clinical Research Site Number : 8400016
Jacksonville, Florida, 32216, United States
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Paradigm Clinical Research Center Wheat Ridge Site Number : 8400002
Wheat Ridge, Colorado, 80033, United States
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Peninsula Research Associates Site Number : 8400012
Rolling Hills Estates, California, 90274, United States
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Plains Clinical Research Center, LLC Site Number : 8400011
Fargo, North Dakota, 58104, United States
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Preferred Primary Care Physicians Site Number : 8400009
Pittsburgh, Pennsylvania, 15236, United States
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Suncoast Research Associates, LLC Site Number : 8400017
Miami, Florida, 33173, United States
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Velocity Clinical Research Site Number : 8400005
Metairie, Louisiana, 70006, United States
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Velocity Clinical Research Valparaiso Site Number : 8400001
Valparaiso, Indiana, 46383, United States
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Velocity Clinical Research, Medford Site Number : 8400010
Medford, Oregon, 97504, United States
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WR-CRCN, LLC Site Number : 8400013
Las Vegas, Nevada, 89106, United States