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Induction of Cross-protective Antibodies for Serogroup 33 by Pneumococcal Conjugate Vaccines

RecruitingPhase 4Healthy volunteers welcome

Novel Serotype Alert: Investigate New Pneumococcal Conjugate Vaccines for Inducing Cross-protection Against Newly Discovered Serotype 33E and Putative Novel Serogroup 33 Serotypes

Who can join

Ages 18 and older · All sexes · Healthy volunteers welcome

Full eligibility criteria
Inclusion Criteria:

* Healthy adult

Exclusion Criteria:

* No prior history of pneumococcal vaccination
* No immunosuppressing medications or chronic diseases that affect immune function

About the study

The goal of this study is to learn whether different types of vaccines to prevent bacterial infections are able to effectively create antibodies that defend against certain types of bacteria.

We will give two different types of vaccine and evaluate the effectiveness of antibodies produced by each vaccine in killing bacteria.

What is being tested

Sponsor: University of Alabama at Birmingham · Participants: 70 · Started: Jul 1, 2026

Contact the study team

Official record on ClinicalTrials.gov — NCT07135453

Locations in the U.S.

AlabamaUniversity of Alabama at Birmingham, Birmingham

Conditions

From ClinicalTrials.gov, data retrieved Sep 30, 2026. Each study sets its own eligibility; the study team decides who can join.