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ClinicalTrials.gov public records Last synced May 22, 2026, 2:44 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 1–24 of 140 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Pneumococcal Infection Clear all
Completed Phase 2 Interventional Accepts healthy volunteers Results available
View directory record Official record
Conditions
Pneumococcal Infections
Interventions
Multivalent, 13vPnC
Biological
Lead sponsor
Pfizer
Industry
Eligibility
42 Days to 98 Days
Enrollment
460 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
39
States / cities
Fayetteville, Arkansas • Downey, California • Huntington Beach, California + 29 more
Source: ClinicalTrials.gov public record
Updated Mar 1, 2021 · Synced May 22, 2026, 2:44 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers
View directory record Official record
Conditions
PREVENTION OF INVASIVE PNEUMOCOCCAL DISEASE, Prevention of Pneumococcal-induced Acute Otitis Media
Interventions
Inactivated whole-cell Streptococcus pneumoniae vaccine, Placebo
Biological · Drug
Lead sponsor
Serum Life Science Europe GmbH
Industry
Eligibility
18 Years to 49 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Oct 23, 2025 · Synced May 22, 2026, 2:44 AM EDT
Completed No phase listed Observational
View directory record Official record
Conditions
Pneumonia
Interventions
Pre and post vaccination titers
Other
Lead sponsor
George Washington University
Other
Eligibility
18 Years and older
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Jul 29, 2010 · Synced May 22, 2026, 2:44 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available
View directory record Official record
Conditions
Pneumococcal Infections
Interventions
13-valent pneumococcal conjugate vaccine (13vPnC), 23-valent Pneumococcal Polysaccharide Vaccine (23vPS)
Biological
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 64 Years
Enrollment
2,141 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2011
U.S. locations
26
States / cities
Huntsville, Alabama • Chandler, Arizona • Phoenix, Arizona + 19 more
Source: ClinicalTrials.gov public record
Updated Nov 14, 2021 · Synced May 22, 2026, 2:44 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available
View directory record Official record
Conditions
Pneumococcal Infections
Interventions
Multivalent, Prevnar 13, PPSV23, Saline
Biological · Other
Lead sponsor
Pfizer
Industry
Eligibility
60 Years to 64 Years
Enrollment
444 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
14
States / cities
Anaheim, California • Coral Gables, Florida • DeLand, Florida + 11 more
Source: ClinicalTrials.gov public record
Updated Dec 25, 2019 · Synced May 22, 2026, 2:44 AM EDT
Completed No phase listed Observational
View directory record Official record
Conditions
Invasive Pneumococcal Disease
Interventions
No intervention
Other
Lead sponsor
Pfizer
Industry
Eligibility
Not listed
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2015
U.S. locations
1
States / cities
Oakland, California
Source: ClinicalTrials.gov public record
Updated Dec 3, 2018 · Synced May 22, 2026, 2:44 AM EDT
Completed Phase 3 Interventional Results available
View directory record Official record
Conditions
Bacterial Pneumonia
Interventions
Ceftaroline fosamil for Injection, Ceftriaxone, Placebo
Drug
Lead sponsor
Forest Laboratories
Industry
Eligibility
18 Years and older
Enrollment
622 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Mar 13, 2017 · Synced May 22, 2026, 2:44 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Pneumonia
Interventions
Salmonella Typhi-vectored pneumonia vaccine
Biological
Lead sponsor
Arizona State University
Other
Eligibility
18 Years to 40 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2011
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Nov 1, 2011 · Synced May 22, 2026, 2:44 AM EDT
Completed Phase 3 Interventional
View directory record Official record
Conditions
Pneumonia, Pneumococcal, Community Acquired Infections, Gram-positive Bacterial Infections
Interventions
Antibiotic
Drug
Lead sponsor
Pfizer
Industry
Eligibility
13 Years and older
Enrollment
230 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2003
U.S. locations
34
States / cities
Los Angeles, California • Jacksonville, Florida • Naples, Florida + 29 more
Source: ClinicalTrials.gov public record
Updated Apr 25, 2011 · Synced May 22, 2026, 2:44 AM EDT
Completed No phase listed Observational Accepts healthy volunteers
View directory record Official record
Conditions
Pneumococcal Infections
Interventions
Not listed
Lead sponsor
Johns Hopkins Bloomberg School of Public Health
Other
Eligibility
Not listed
Enrollment
1,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2008
U.S. locations
1
States / cities
Chinle, Fort Defiance, Whiteriver, AZ; Gallup, Shiprock, NM, Arizona
Source: ClinicalTrials.gov public record
Updated Sep 25, 2012 · Synced May 22, 2026, 2:44 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Pneumococcal Infections
Interventions
Prevnar 13, multivalent pneumococcal conjugate formulation 1, multivalent pneumococcal conjugate formulation 2
Biological
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 49 Years
Enrollment
104 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
4
States / cities
Garden Grove, California • Long Beach, California • Honolulu, Hawaii + 1 more
Source: ClinicalTrials.gov public record
Updated Jun 11, 2019 · Synced May 22, 2026, 2:44 AM EDT
Active, not recruiting Not applicable Interventional
View directory record Official record
Conditions
Infection in Solid Organ Transplant Recipients
Interventions
Pneumococcal Conjugate Vaccine 13 (PCV13)
Biological
Lead sponsor
University of California, Los Angeles
Other
Eligibility
12 Months to 59 Months
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2025
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Apr 1, 2025 · Synced May 22, 2026, 2:44 AM EDT
Completed Phase 1 Interventional
View directory record Official record
Conditions
HIV Infections, Pneumococcal Infections
Interventions
Pneumococcal Vaccine, Polyvalent (23-valent), Pneumococcal Conjugate Vaccine, Heptavalent, Placebo
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
2 Months to 6 Months
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Ends 1999
U.S. locations
31
States / cities
Los Angeles, California • Oakland, California • San Diego, California + 21 more
Source: ClinicalTrials.gov public record
Updated Oct 27, 2021 · Synced May 22, 2026, 2:44 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available
View directory record Official record
Conditions
Pneumococcal Infections
Interventions
V114, QIV, Matching Placebo for V114
Biological
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Eligibility
50 Years and older
Enrollment
1,200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
45
States / cities
Birmingham, Alabama • Chandler, Arizona • Mesa, Arizona + 39 more
Source: ClinicalTrials.gov public record
Updated May 21, 2024 · Synced May 22, 2026, 2:44 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available
View directory record Official record
Conditions
Pneumococcal Infections
Interventions
13 valent Pneumococcal Conjugate Vaccine, 23vPS
Biological
Lead sponsor
Wyeth is now a wholly owned subsidiary of Pfizer
Industry
Eligibility
70 Years and older
Enrollment
938 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2010
U.S. locations
51
States / cities
Mobile, Alabama • Mesa, Arizona • Fountain Valley, California + 43 more
Source: ClinicalTrials.gov public record
Updated Jul 13, 2011 · Synced May 22, 2026, 2:44 AM EDT
Completed Not applicable Interventional
View directory record Official record
Conditions
Mycobacterium Avium-intracellulare Infection, HIV Infections
Interventions
Azithromycin
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
13 Years and older
Enrollment
850 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Ends 2000
U.S. locations
19
States / cities
San Francisco, California • Denver, Colorado • Washington D.C., District of Columbia + 11 more
Source: ClinicalTrials.gov public record
Updated Nov 2, 2021 · Synced May 22, 2026, 2:44 AM EDT
Terminated No phase listed Observational
View directory record Official record
Conditions
Heart Transplant Infection Prevention
Interventions
PCV15
Biological
Lead sponsor
Montefiore Medical Center
Other
Eligibility
18 Years and older
Enrollment
4 participants
Timeline
2021 – 2024
U.S. locations
1
States / cities
The Bronx, New York
Source: ClinicalTrials.gov public record
Updated Feb 3, 2026 · Synced May 22, 2026, 2:44 AM EDT
Completed No phase listed Observational Results available
View directory record Official record
Conditions
Acute Otitis Media, Mastoiditis
Interventions
No intervention
Other
Lead sponsor
Pfizer
Industry
Eligibility
0 Years and older
Enrollment
391 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2013
U.S. locations
8
States / cities
Little Rock, Arkansas • Los Angeles, California • San Diego, California + 5 more
Source: ClinicalTrials.gov public record
Updated May 22, 2023 · Synced May 22, 2026, 2:44 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available
View directory record Official record
Conditions
Infections, Meningococcal
Interventions
Bexsero (GSK Biologicals' Meningococcal group-B vaccine/ rMenB+OMV NZ), Prevnar13, Pediarix, Hiberix, Rotarix, M-M-R II, Varivax, Placebo (saline water), Prevnar 20
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
6 Weeks to 12 Weeks
Enrollment
1,196 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2024
U.S. locations
56
States / cities
Birmingham, Alabama • Fayetteville, Arkansas • Jonesboro, Arkansas + 47 more
Source: ClinicalTrials.gov public record
Updated Feb 9, 2026 · Synced May 22, 2026, 2:44 AM EDT
Completed Phase 3 Interventional Results available
View directory record Official record
Conditions
Pneumococcal Disease
Interventions
V116, Placebo, PCV15, PPSV23, PCV15 - Part B
Biological
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Eligibility
18 Years and older
Enrollment
313 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
7
States / cities
Phoenix, Arizona • Washington D.C., District of Columbia • Ft. Pierce, Florida + 4 more
Source: ClinicalTrials.gov public record
Updated Feb 4, 2026 · Synced May 22, 2026, 2:44 AM EDT
Completed Phase 4 Interventional Results available
View directory record Official record
Conditions
Asthma
Interventions
PCV13, PPSV23
Biological
Lead sponsor
Mayo Clinic
Other
Eligibility
19 Years to 64 Years
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Nov 4, 2021 · Synced May 22, 2026, 2:44 AM EDT
Recruiting Phase 3 Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Pneumococcal Immunization, Healthy Volunteers
Interventions
PCV21 vaccine, 20vPCV licensed vaccine
Biological
Lead sponsor
Sanofi
Industry
Eligibility
42 Days to 89 Days
Enrollment
2,195 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2028
U.S. locations
3
States / cities
Tampa, Florida • Allen Park, Michigan • Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Apr 26, 2026 · Synced May 22, 2026, 2:44 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
HIV, Pneumococcal Infections, Pneumococcal Vaccines
Interventions
PCV-13, PPSV-23
Biological
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 55 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2021
U.S. locations
3
States / cities
Aurora, Colorado • Denver, Colorado
Source: ClinicalTrials.gov public record
Updated Nov 17, 2020 · Synced May 22, 2026, 2:44 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available
View directory record Official record
Conditions
Rubella, Mumps, Measles, Measles-Mumps-Rubella Vaccine
Interventions
GSK Biological's investigational vaccine 209762, M-M-R® II (Merck and Co), Varivax®, Havrix®, Prevnar®
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
12 Months to 15 Months
Enrollment
1,259 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2012
U.S. locations
45
States / cities
Tuscaloosa, Alabama • Conway, Arkansas • Jonesboro, Arkansas + 42 more
Source: ClinicalTrials.gov public record
Updated Jan 2, 2020 · Synced May 22, 2026, 2:44 AM EDT