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ClinicalTrials.gov public records Last synced Oct 22, 2026, 9:34 AM EDT

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Showing 1–24 of 177 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Pneumococcal Vaccines Clear all
Completed Phase 3 Interventional Results available

A Study to Evaluate the Safety, Tolerability, and Immunogenicity of V114 Followed by PNEUMOVAX™23 in Adults Infected With Human Immunodeficiency Virus (HIV) (V114-018)

NCT03480802
View directory record Official record
Conditions
Pneumococcal Infections
Interventions
V114, Prevnar 13™, PNEUMOVAX™23
Biological
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Eligibility
18 Years and older
Enrollment
302 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
4
States / cities
Orlando, Florida • West Palm Beach, Florida • Houston, Texas
Source: ClinicalTrials.gov public record
Updated May 5, 2022 · Synced Oct 22, 2026, 9:34 AM EDT
Recruiting Phase 4 Interventional Accepts healthy volunteers

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

NCT07135453
View directory record Official record
Conditions
Vaccine, Pneumococcal Disease
Interventions
Pneumococcal Vaccine
Biological
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
18 Years and older
Enrollment
70 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Aug 21, 2026 · Synced Oct 22, 2026, 9:34 AM EDT
Not listed Phase 2 Interventional

Offering Influenza and Pneumococcal Vaccine to Patients Being Evaluated in the Emergency Department

NCT00380679
View directory record Official record
Conditions
High Risk for Serious Influenza, High Risk for Pneumonia
Interventions
Influenza vaccination, Pneumococcal polysaccharide vaccination
Biological
Lead sponsor
Louisiana State University Health Sciences Center in New Orleans
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2006
U.S. locations
2
States / cities
Baton Rouge, Louisiana
Source: ClinicalTrials.gov public record
Updated Sep 26, 2006 · Synced Oct 22, 2026, 9:34 AM EDT
Completed Phase 1 Interventional

A Double-Blind Placebo-Controlled Trial of the Safety and Immunogenicity of a Seven Valent Pneumococcal Conjugate Vaccine in Presumed HIV-Infected Infants

NCT00000829
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 28, 2021 · Synced Oct 22, 2026, 9:34 AM EDT
Completed No phase listed Observational

Study Estimating the Impact of Prevnar 13™ (13vPnC) on Invasive Pneumococcal Disease

NCT01128439
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 4, 2018 · Synced Oct 22, 2026, 9:34 AM EDT
Active, not recruiting Phase 3 Interventional Accepts healthy volunteers

Safety, Tolerability, and Immunogenicity of VAX-31 in Adults ≥50 Years With Prior Pneumococcal Vaccination

NCT07425392
View directory record Official record
Conditions
Pneumococcal Vaccines
Interventions
31-valent pneumococcal conjugate vaccine, PCV20
Biological
Lead sponsor
Vaxcyte, Inc.
Industry
Eligibility
50 Years and older
Enrollment
752 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
30
States / cities
Chinle, Arizona • Phoenix, Arizona • Whiteriver, Arizona + 27 more
Source: ClinicalTrials.gov public record
Updated Jun 30, 2026 · Synced Oct 22, 2026, 9:34 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Pneumococcal Vaccination in Patients With Inflammatory Bowel Disease

NCT00829595
View directory record Official record
Conditions
Inflammatory Bowel Disease, Crohn Disease, Ulcerative Colitis
Interventions
23-valent polysaccharide pneumococcal vaccine (Pneumovax TM)
Biological
Lead sponsor
Cedars-Sinai Medical Center
Other
Eligibility
18 Years and older
Enrollment
69 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2007
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jan 27, 2009 · Synced Oct 22, 2026, 9:34 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Immunogenicity and Reactogenicity of Pneumococcal Polysaccharide and Conjugate Vaccines in Native Elders

NCT00153543
View directory record Official record
Conditions
Pneumococcal Infections
Interventions
PCV7 + PPV23, 2 months, PCV7 + PPV23, 6 months
Biological
Lead sponsor
Centers for Disease Control and Prevention
Federal
Eligibility
55 Years to 70 Years
Enrollment
86 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2002 – 2003
U.S. locations
1
States / cities
Anchorage, Alaska
Source: ClinicalTrials.gov public record
Updated Oct 1, 2024 · Synced Oct 22, 2026, 9:34 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

Safety, Tolerability, and Immunogenicity Study of a 31-Valent Pneumococcal Conjugate Vaccine (VAX-31) in Adults

NCT06151288
View directory record Official record
Conditions
Pneumococcal Vaccines
Interventions
31 valent pneumococcal conjugate vaccine, 20 valent pneumococcal conjugate vaccine
Biological
Lead sponsor
Vaxcyte, Inc.
Industry
Eligibility
50 Years and older
Enrollment
1,015 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
25
States / cities
Mobile, Alabama • Phoenix, Arizona • Hollywood, Florida + 22 more
Source: ClinicalTrials.gov public record
Updated Jul 28, 2025 · Synced Oct 22, 2026, 9:34 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Safety, Tolerability, and Immunogenicity of V110 or V114 Co-administered With a Booster Dose of mRNA-1273 in Healthy Adults (V110-911)

NCT05158140
View directory record Official record
Conditions
Pneumococcal Infection
Interventions
V110, V114, mRNA-1273, Placebo for V110, Placebo for V114
Biological
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Eligibility
50 Years and older
Enrollment
850 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
42
States / cities
North Hollywood, California • Northridge, California • Paramount, California + 38 more
Source: ClinicalTrials.gov public record
Updated Jul 18, 2025 · Synced Oct 22, 2026, 9:34 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

A Study to Evaluate the Safety and Tolerability of V114 and Prevnar 13™ in Healthy Infants (V114-031/PNEU-LINK)

NCT03692871
View directory record Official record
Conditions
Pneumococcal Infections
Interventions
V114, Prevnar 13™
Biological
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Eligibility
42 Days to 90 Days
Enrollment
2,409 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2021
U.S. locations
22
States / cities
Downey, California • Huntington Beach, California • San Diego, California + 18 more
Source: ClinicalTrials.gov public record
Updated Jul 28, 2023 · Synced Oct 22, 2026, 9:34 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

Study of 2 Doses of HRV Vaccine Given Concomitantly or Separately With Routine Vaccinations in Healthy Infants in USA

NCT00334607
View directory record Official record
Conditions
Infections, Rotavirus
Interventions
2-dose oral live attenuated G1P[8] human rotavirus vaccine
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
6 Weeks to 16 Weeks
Enrollment
484 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2007
U.S. locations
42
States / cities
Benton, Arkansas • Cabot, Arkansas • Jonesboro, Arkansas + 37 more
Source: ClinicalTrials.gov public record
Updated Nov 4, 2016 · Synced Oct 22, 2026, 9:34 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Trial to Evaluate the Safety and Immunogenicity of a Multivalent Pneumococcal Conjugate Vaccine in Adults 60 Through 64 Years of Age

NCT03313037
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 26, 2019 · Synced Oct 22, 2026, 9:34 AM EDT
Completed Not applicable Interventional

A Study of Thalidomide in HIV-Infected Patients Who Are Receiving HAART

NCT00002392
View directory record Official record
Conditions
HIV Infections
Interventions
Thalidomide
Drug
Lead sponsor
Rockefeller University
Other
Eligibility
18 Years and older
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jun 24, 2005 · Synced Oct 22, 2026, 9:34 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Study of the Safety of Menactra® Vaccine When Administered With Other Pediatric Vaccines to Healthy Toddlers

NCT00483574
View directory record Official record
Conditions
Meningococcal Meningitis, Measles, Mumps, Rubella, Varicella
Interventions
Menactra®: Meningococcal Polysaccharide Diphtheria Toxoid Conjugate, Measles-mumps-rubella-varicella vaccine, Routine paediatric vaccine - Pneumococcal conjugate (PCV), Routine paediatric vaccine - Hepatitis A
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
9 Months to 12 Months
Enrollment
1,378 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2009
U.S. locations
78
States / cities
Birmingham, Alabama • Dothan, Alabama • Pinson, Alabama + 68 more
Source: ClinicalTrials.gov public record
Updated May 16, 2016 · Synced Oct 22, 2026, 9:34 AM EDT
Recruiting Phase 3 Interventional Accepts healthy volunteers

A Study to Learn About the Safety of an Expanded Pneumococcal Vaccine in Healthy Infants

NCT07573462
View directory record Official record
Conditions
Pneumococcal Disease
Interventions
PG4, 20-valent pneumococcal conjugate vaccine (20vPnC)
Biological
Lead sponsor
Pfizer
Industry
Eligibility
42 Days to 98 Days
Enrollment
2,400 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2028
U.S. locations
23
States / cities
Estero, Florida • Fort Lauderdale, Florida • Fort Myers, Florida + 16 more
Source: ClinicalTrials.gov public record
Updated Sep 15, 2026 · Synced Oct 22, 2026, 9:34 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Study of a Pneumococcal Conjugate Vaccine in Adults Aged 50 to 84 Years.

NCT04583618
View directory record Official record
Conditions
Pneumococcal Immunization
Interventions
Pneumococcal Conjugate Vaccine - formulation 1-SP0202-IIb, Pneumococcal Conjugate Vaccine - formulation 2-SP0202-VI, Pneumococcal Conjugate Vaccine - formulation 3-SP0202-VII, Pneumococcal 13 - valent conjugate vaccine-Prevnar 13, Pneumococcal Vaccine Polyvalent-Pneumovax 23
Biological
Lead sponsor
Sanofi
Industry
Eligibility
50 Years to 84 Years
Enrollment
750 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
17
States / cities
Anaheim, California • Rolling Hills Estates, California • Wheat Ridge, Colorado + 14 more
Source: ClinicalTrials.gov public record
Updated Sep 8, 2025 · Synced Oct 22, 2026, 9:34 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Study Comparing 13-valent Pneumococcal Conjugate Vaccine With 7-valent Pneumococcal Conjugate Vaccine

NCT00373958
View directory record Official record
Conditions
Vaccines, Pneumococcal
Interventions
13 valent pneumococcal conjugate vaccine, 7vPnc pneumococcal conjugate vaccine
Biological
Lead sponsor
Pfizer
Industry
Eligibility
42 Days to 98 Days
Enrollment
666 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2008
U.S. locations
37
States / cities
Fayetteville, Arkansas • Jonesboro, Arkansas • Little Rock, Arkansas + 31 more
Source: ClinicalTrials.gov public record
Updated Feb 21, 2013 · Synced Oct 22, 2026, 9:34 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Study Evaluating the Impact of the 13-valent Pneumococcal Conjugate Vaccine (13vPnC) in Alaskan Native Children.

NCT00743652
View directory record Official record
Conditions
Pneumococcal Disease, 13-valent Pneumococcal Vaccine
Interventions
13-valent Pneumococcal Conjugate Vaccine
Biological
Lead sponsor
Pfizer
Industry
Eligibility
42 Days to 5 Years
Enrollment
373 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
21
States / cities
Akiak, Alaska • Bethel, Alaska • Chefornak, Alaska + 18 more
Source: ClinicalTrials.gov public record
Updated Mar 15, 2012 · Synced Oct 22, 2026, 9:34 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Trial to Evaluate the Safety and Immunogenicity of a 20-Valent Pneumococcal Vaccine in Adults 65 Years of Age or Older With Prior Pneumococcal Vaccination

NCT03835975
View directory record Official record
Conditions
Pneumococcal Disease
Interventions
13vPnC, PPSV23, 20vPnC
Biological
Lead sponsor
Pfizer
Industry
Eligibility
65 Years and older
Enrollment
875 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
34
States / cities
Mobile, Alabama • Chandler, Arizona • Peoria, Arizona + 26 more
Source: ClinicalTrials.gov public record
Updated Feb 21, 2021 · Synced Oct 22, 2026, 9:34 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Study Evaluating Prevnar Infant Long-term Immune Response Versus Prevnar Naive Cohort

NCT00824850
View directory record Official record
Conditions
Pneumococcal Conjugate Vaccine
Interventions
13-valent Pneumococcal Conjugate Vaccine
Biological
Lead sponsor
Pfizer
Industry
Eligibility
8 Years to 16 Years
Enrollment
75 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010
U.S. locations
2
States / cities
Hayward, California • San Jose, California
Source: ClinicalTrials.gov public record
Updated Nov 11, 2011 · Synced Oct 22, 2026, 9:34 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

Safety, Tolerability, and Immunogenicity Study of a 24-Valent Pneumococcal Conjugate Vaccine (VAX-24) in Adults

NCT05266456
View directory record Official record
Conditions
Pneumococcal Vaccines
Interventions
24 valent pneumococcal conjugate vaccine, 20 valent pneumococcal conjugate vaccine
Biological
Lead sponsor
Vaxcyte, Inc.
Industry
Eligibility
18 Years to 64 Years
Enrollment
835 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
13
States / cities
Hollywood, Florida • Sunrise, Florida • Savannah, Georgia + 10 more
Source: ClinicalTrials.gov public record
Updated Apr 18, 2024 · Synced Oct 22, 2026, 9:34 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Study Evaluating Serum Collected From Healthy Adults For Development of Pneumococcal Opsonophagocytic Assay

NCT00508950
View directory record Official record
Conditions
Healthy
Interventions
Large volume blood draw
Procedure
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 70 Years
Enrollment
152 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2016
U.S. locations
1
States / cities
Secaucus, New Jersey
Source: ClinicalTrials.gov public record
Updated Aug 17, 2016 · Synced Oct 22, 2026, 9:34 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers

A Study to Learn About the Safety and Immune Response of a New Pneumococcal Vaccine in Adults

NCT06182124
View directory record Official record
Conditions
Pneumococcal Disease
Interventions
Multivalent Pneumococcal Vaccine - Formulation 1, Multivalent Pneumococcal Vaccine - Formulation 2, 20-valent pneumococcal conjugate vaccine (20vPnC), Licensed pneumococcal comparator vaccine, Multivalent Pneumococcal Vaccine - Formulation 3, Multivalent Pneumococcal Vaccine - Formulation 4
Biological
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
1,710 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
20
States / cities
Doral, Florida • Hialeah, Florida • Stockbridge, Georgia + 13 more
Source: ClinicalTrials.gov public record
Updated Sep 25, 2026 · Synced Oct 22, 2026, 9:34 AM EDT