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ClinicalTrials.gov public records Last synced Oct 7, 2026, 3:23 AM EDT

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Showing 25–48 of 156 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Vaccines, Pneumococcal Conjugate Vaccine Clear all
Completed Phase 3 Interventional Results available

Study Evaluating 13-valent Pneumococcal Conjugate Vaccine (13vPnC) in Children With Sickle Cell Disease

NCT00918580
View directory record Official record
Conditions
Pneumococcal Conjugate Vaccine
Interventions
13-valent Pneumoccocal Conjugate Vaccine
Biological
Lead sponsor
Pfizer
Industry
Eligibility
6 Years to 17 Years
Enrollment
158 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2013
U.S. locations
5
States / cities
Birmingham, Alabama • Louisville, Kentucky • The Bronx, New York + 1 more
Source: ClinicalTrials.gov public record
Updated Apr 21, 2014 · Synced Oct 7, 2026, 3:23 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Study Evaluating Safety of 13-Valent Pneumococcal Conjugate Vaccine in Healthy Elderly Subjects

NCT00500266
View directory record Official record
Conditions
Pneumococcal Infections
Interventions
13-valent Pneumococcal Conjugate Vaccine (13vPnC)
Biological
Lead sponsor
Pfizer
Industry
Eligibility
68 Years and older
Enrollment
1,053 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
40
States / cities
Chandler, Arizona • Glendale, Arizona • Phoenix, Arizona + 33 more
Source: ClinicalTrials.gov public record
Updated Sep 16, 2011 · Synced Oct 7, 2026, 3:23 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Trial to Evaluate the Safety and Immunogenicity of a Multivalent Pneumococcal Vaccine in Healthy Infants

NCT03512288
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 2, 2021 · Synced Oct 7, 2026, 3:23 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Trial to Evaluate the Safety and Immunogenicity of a 20-valent Pneumococcal Conjugate Vaccine in Pneumococcal Vaccine-naïve Adults

NCT03760146
View directory record Official record
Conditions
Pneumococcal Disease
Interventions
20vPnC, 13vPnC, PPSV23, Saline
Biological · Other
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
3,902 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
61
States / cities
Birmingham, Alabama • Mobile, Alabama • Chandler, Arizona + 45 more
Source: ClinicalTrials.gov public record
Updated Dec 2, 2021 · Synced Oct 7, 2026, 3:23 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Safety and Immunogenicity Study of 20vPnC in Healthy Children 15 Months Through 17 Years of Age

NCT04642079
View directory record Official record
Conditions
Pneumococcal Disease
Interventions
20vPnC
Biological
Lead sponsor
Pfizer
Industry
Eligibility
15 Months to 17 Years
Enrollment
839 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
43
States / cities
Fayetteville, Arkansas • Jonesboro, Arkansas • San Diego, California + 30 more
Source: ClinicalTrials.gov public record
Updated Jan 22, 2024 · Synced Oct 7, 2026, 3:23 AM EDT
Active, not recruiting Phase 3 Interventional Accepts healthy volunteers

Study of the Safety of a 21-valent Pneumococcal Conjugate Vaccine in Healthy Infants From Approximately 2 Months of Age

NCT06824194
View directory record Official record
Conditions
Pneumococcal Immunization
Interventions
PCV21 vaccine, Prevnar 20 vaccine, M-M-R II vaccine, Rotarix, RotaTeq, Vaxelis vaccine, Varivax, Priorix, VAQTA, Havrix
Biological
Lead sponsor
Sanofi
Industry
Eligibility
42 Days to 89 Days
Enrollment
2,360 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
103
States / cities
Birmingham, Alabama • Guntersville, Alabama • Oneonta, Alabama + 81 more
Source: ClinicalTrials.gov public record
Updated Apr 13, 2026 · Synced Oct 7, 2026, 3:23 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Analysis of the Mechanisms of Protective Humoral Immunity in Response to the Pneumococcal Vaccine

NCT00589394
View directory record Official record
Conditions
Healthy
Interventions
pneumococcal vaccination (Pneumovax)
Biological
Lead sponsor
Mayo Clinic
Other
Eligibility
20 Years to 70 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2010
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jan 11, 2016 · Synced Oct 7, 2026, 3:23 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Trial to Evaluate the Safety and Immunogenicity of Multivalent Pneumococcal Vaccines in Japanese Adults 18 to 49 Years of Age

NCT03642847
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 12, 2019 · Synced Oct 7, 2026, 3:23 AM EDT
Completed No phase listed Observational Results available

Impact of Prevnar 13 on Ear Infections in Children

NCT01272999
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 23, 2023 · Synced Oct 7, 2026, 3:23 AM EDT
Completed Not applicable Interventional

Pneumococcal Vaccine and Routine Pediatric Immunizations in HIV-Infected Children Receiving Anti-HIV Drugs

NCT00013871
View directory record Official record
Conditions
HIV Infections, Hepatitis B, Measles, Pneumococcal Infections, Pertussis
Interventions
Diphtheria & Tetanus Toxoids & Acellular Pertussis Vaccine Adsorbed, Measles-Mumps-Rubella Vaccine (Live), Pneumococcal Vaccine, Polyvalent (23-valent), Pneumococcal Conjugate Vaccine, Heptavalent, Hepatitis B Vaccine (Recombinant)
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
2 Years to 18 Years
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Ends 2004
U.S. locations
38
States / cities
Birmingham, Alabama • Long Beach, California • Los Angeles, California + 26 more
Source: ClinicalTrials.gov public record
Updated Nov 1, 2021 · Synced Oct 7, 2026, 3:23 AM EDT
Completed Not applicable Interventional Results available

Exploration of Immune Response to Early PCV13 Vaccination in Conjunction With Autologous Transplant

NCT01852591
View directory record Official record
Conditions
Multiple Myeloma
Interventions
PCV 13
Biological
Lead sponsor
H. Lee Moffitt Cancer Center and Research Institute
Other
Eligibility
18 Years and older
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2016
U.S. locations
1
States / cities
Tampa, Florida
Source: ClinicalTrials.gov public record
Updated Feb 2, 2017 · Synced Oct 7, 2026, 3:23 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 7, 2026, 3:23 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Safety and Immunogenicity Study of Prophylactic Streptococcus Pneumoniae Vaccine

NCT01995617
View directory record Official record
Conditions
Streptococcus Pneumoniae
Interventions
Placebo, GEN-004 Low Dose, GEN-004 Low Dose + Adjuvant, GEN-004 Mid Dose, GEN-004 Mid Dose + Adjuvant, GEN-004 High Dose, GEN-004 High Dose + Adjuvant
Biological
Lead sponsor
Genocea Biosciences, Inc.
Industry
Eligibility
18 Years to 55 Years
Enrollment
90 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2015
U.S. locations
1
States / cities
Saint Paul, Minnesota
Source: ClinicalTrials.gov public record
Updated Dec 11, 2015 · Synced Oct 7, 2026, 3:23 AM EDT
Active, not recruiting Phase 3 Interventional Accepts healthy volunteers

Study of a 4-Dose Regimen of a 21-valent Pneumococcal Conjugate Vaccine in Healthy Infants From Approximately 2 Months of Age

NCT06736041
View directory record Official record
Conditions
Pneumococcal Immunization
Interventions
PCV21 vaccine, Prevnar 20 vaccine, M-M-R II vaccine, RotaTeq, Vaxelis vaccine, Varivax, Hexaxim Vaccine
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
42 Days to 89 Days
Enrollment
1,714 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2027
U.S. locations
66
States / cities
Glendale, Arizona • Tucson, Arizona • Fayetteville, Arkansas + 48 more
Source: ClinicalTrials.gov public record
Updated Apr 22, 2026 · Synced Oct 7, 2026, 3:23 AM EDT
Completed Phase 4 Interventional Results available

A Study to Evaluate the Effect of Belimumab on Vaccine Responses in Subjects With Systemic Lupus Erythematosus (SLE)

NCT01597492
View directory record Official record
Conditions
Systemic Lupus Erythematosus
Interventions
Belimumab plus Early Vaccination, Belimumab plus Late Vaccination
Biological
Lead sponsor
Human Genome Sciences Inc., a GSK Company
Industry
Eligibility
18 Years and older
Enrollment
79 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2015
U.S. locations
15
States / cities
Birmingham, Alabama • Paradise Valley, Arizona • Shreveport, Louisiana + 11 more
Source: ClinicalTrials.gov public record
Updated Aug 16, 2018 · Synced Oct 7, 2026, 3:23 AM EDT
Recruiting Phase 3 Interventional Accepts healthy volunteers

Lot-to-lot Consistency Study of a 21-valent Pneumococcal Conjugate Vaccine in Healthy Infants From 2 Months of Age

NCT07348692
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
14
States / cities
Fayetteville, Arkansas • Huntington Park, California • Los Angeles, California + 10 more
Source: ClinicalTrials.gov public record
Updated Oct 5, 2026 · Synced Oct 7, 2026, 3:23 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Pneumococcal Conjugate Vaccine With Pneumococcal Polysaccharide Vaccine and Tetanus/Diphtheria Vaccine

NCT00164411
View directory record Official record
Conditions
Pneumococcal Infections
Interventions
Tetanus-diphtheria toxoids (Td), 7-valent pneumococcal conjugate vaccine, 23-valent polysaccharide vaccine
Biological
Lead sponsor
Centers for Disease Control and Prevention
Federal
Eligibility
50 Years to 64 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2005
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Mar 14, 2012 · Synced Oct 7, 2026, 3:23 AM EDT
Active, not recruiting Phase 3 Interventional Accepts healthy volunteers

Study of Mixed Vaccination Schedules With a 21-valent Pneumococcal Conjugate Vaccine and a 20-valent Pneumococcal Conjugate Vaccine in Healthy Infants From Approximately 2 Months of Age

NCT06824181
View directory record Official record
Conditions
Pneumococcal Immunization
Interventions
PCV21 vaccine, Prevnar 20 vaccine, M-M-R II vaccine, Rotarix, RotaTeq, Vaxelis vaccine, Varivax, Priorix, VAQTA, Havrix
Biological
Lead sponsor
Sanofi
Industry
Eligibility
42 Days to 89 Days
Enrollment
580 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
17
States / cities
Los Angeles, California • Hollywood, Florida • Miami, Florida + 13 more
Source: ClinicalTrials.gov public record
Updated Feb 13, 2026 · Synced Oct 7, 2026, 3:23 AM EDT
Recruiting Phase 1 Interventional Accepts healthy volunteers

A Clinical Study of Novel Pneumococcal Vaccine V118C in Children (V118C-002)

NCT07300267
View directory record Official record
Conditions
Pneumococcal Infection
Interventions
V118C (Stage 1), V118C (Stage 2), PCV20 (Stage 1), PCV20 (Stage 2)
Biological
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Eligibility
2 Months to 15 Months
Enrollment
210 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2029
U.S. locations
15
States / cities
Madera, California • Miami, Florida • Tampa, Florida + 12 more
Source: ClinicalTrials.gov public record
Updated Oct 2, 2026 · Synced Oct 7, 2026, 3:23 AM EDT
Terminated Early Phase 1 Interventional Accepts healthy volunteers Results available

Pneumococcal Conjugate Vaccine in Aging Renal Transplant

NCT03802994
View directory record Official record
Conditions
Renal Transplantation, Aging
Interventions
23 valent pneumococcal polysaccharide vaccine, 13 valent conjugated pneumococcal vaccine, Peripheral blood sample
Drug · Biological · Other
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
35 Years to 75 Years
Enrollment
57 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
2
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Apr 30, 2021 · Synced Oct 7, 2026, 3:23 AM EDT
Completed Not applicable Interventional Results available

System Alignment for VaccinE Delivery (SAVED): Improving Rates of Influenza and Pneumococcal Vaccination Through Patient Outreach, Improved Medical Record Accuracy and Targeted Physician Alerts

NCT02266277
View directory record Official record
Conditions
Influenza, Infections, Pneumococcal
Interventions
Arm 1: E-portal message with IVR call, Arm 2: E-portal message with no IVR call, Arm 3: No e-portal message with IVR call, Arm 5: IVR call
Other
Lead sponsor
University of Massachusetts, Worcester
Other
Eligibility
18 Years and older
Enrollment
30,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
Worcester, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 31, 2017 · Synced Oct 7, 2026, 3:23 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Safety and Immunogenicity of a Pneumococcal Conjugate Vaccine Candidate in Healthy Adults (19-49 Years)

NCT06698198
View directory record Official record
Conditions
Pneumococcal Immunization
Interventions
Pneumococcal Conjugate Vaccine, Prevnar 13®
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
19 Years to 49 Years
Enrollment
175 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
2
States / cities
Metairie, Louisiana • Newark, New Jersey
Source: ClinicalTrials.gov public record
Updated Nov 20, 2024 · Synced Oct 7, 2026, 3:23 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Fever After Simultaneous Versus Sequential Vaccination in Young Children

NCT03165981
View directory record Official record
Conditions
Fever After Vaccination, Fever, Febrile Seizure
Interventions
PCV13, DTaP, IIV
Biological
Lead sponsor
Duke University
Other
Eligibility
12 Months to 16 Months
Enrollment
221 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
3
States / cities
Oakland, California • Atlanta, Georgia • Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Nov 18, 2024 · Synced Oct 7, 2026, 3:23 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Safety and Immunogenicity of 20vPnC Coadministered With SIIV in Adults ≥65 Years of Age

NCT04526574
View directory record Official record
Conditions
Pneumococcal Disease
Interventions
Experimental 20-valent pneumococcal conjugate vaccine (20vPnC), Saline, Influenza vaccine
Biological · Other
Lead sponsor
Pfizer
Industry
Eligibility
65 Years and older
Enrollment
1,796 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
63
States / cities
Mobile, Alabama • Chandler, Arizona • Phoenix, Arizona + 53 more
Source: ClinicalTrials.gov public record
Updated Jul 8, 2022 · Synced Oct 7, 2026, 3:23 AM EDT