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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Pneumococcal Immunisation Clear all
Active, not recruiting Phase 3 Interventional Accepts healthy volunteers

Study of the Safety and Immunogenicity of Catch-up Vaccination With a 21-valent Pneumococcal Conjugate Vaccine (PCV21) in Healthy Infants, Toddlers, Children, and Adolescents

NCT06838000
View directory record Official record
Conditions
Pneumococcal Infections
Interventions
PCV21, 20vPCV
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
7 Months to 17 Years
Enrollment
1,268 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
17
States / cities
Paramount, California • Doral, Florida • Hialeah, Florida + 13 more
Source: ClinicalTrials.gov public record
Updated Oct 5, 2025 · Synced Jul 21, 2026, 7:11 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 15, 2018 · Synced Jul 21, 2026, 7:11 AM EDT
Completed Phase 4 Interventional Results available

A Study to Evaluate Pneumococcal Polysaccharide Vaccine Effectiveness in Children With Type 1 Diabetes

NCT04481243
View directory record Official record
Conditions
Type 1 Diabetes
Interventions
Pneumovax 23- pneumococcal polysaccharide, Blood draw
Biological · Procedure
Lead sponsor
Mayo Clinic
Other
Eligibility
3 Years to 18 Years
Enrollment
29 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Nov 7, 2023 · Synced Jul 21, 2026, 7:11 AM EDT
Completed Phase 1Phase 2 Interventional

Maternal Immunization To Prevent Infant Otitis Media

NCT00617682
View directory record Official record
Conditions
Otitis Media
Interventions
PNCRM9, Placebo comparator
Biological
Lead sponsor
National Institute on Deafness and Other Communication Disorders (NIDCD)
NIH
Eligibility
18 Years and older · Female only
Enrollment
153 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2000 – 2004
U.S. locations
2
States / cities
Bloomington, Minnesota • Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Feb 17, 2008 · Synced Jul 21, 2026, 7:11 AM EDT
Completed Not applicable Interventional

Pneumonia Vaccine Education Intervention Study

NCT06136832
View directory record Official record
Conditions
Pneumonia, Pneumococcal, Vaccine
Interventions
Pneumococcal Vaccine Education
Behavioral
Lead sponsor
Geisinger Clinic
Other
Eligibility
18 Years to 64 Years
Enrollment
141 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
1
States / cities
Wilkes-Barre, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 7, 2025 · Synced Jul 21, 2026, 7:11 AM EDT
Terminated Phase 1 Interventional Accepts healthy volunteers

Trial of Antibody Responses by Vitamin Supplementation

NCT03859687
View directory record Official record
Conditions
Healthy Participants
Interventions
Vitamin A supplementation, No vitamin A supplementation
Biological
Lead sponsor
St. Jude Children's Research Hospital
Other
Eligibility
1 Year to 4 Years
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2025
U.S. locations
1
States / cities
Memphis, Tennessee
Source: ClinicalTrials.gov public record
Updated Sep 4, 2025 · Synced Jul 21, 2026, 7:11 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 21, 2026 · Synced Jul 21, 2026, 7:11 AM EDT
Completed Phase 4 Interventional

Study to Evaluate the Immune Response to Pneumococcal Vaccine in Alefacept-treated Adults With Chronic Plaque Psoriasis

NCT00493324
View directory record Official record
Conditions
Chronic Plaque Psoriasis
Interventions
alefacept, polyvalent pneumococcal vaccine
Drug
Lead sponsor
Astellas Pharma Inc
Industry
Eligibility
18 Years and older
Enrollment
43 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2008
U.S. locations
5
States / cities
Birmingham, Alabama • San Diego, California • New York, New York + 1 more
Source: ClinicalTrials.gov public record
Updated Feb 1, 2012 · Synced Jul 21, 2026, 7:11 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Racial Disparities in Pneumococcal Vaccination in Managed Care

NCT00229762
View directory record Official record
Conditions
Pneumococcal Disease Prevention
Interventions
phone call from nurses - informational only
Behavioral
Lead sponsor
Centers for Disease Control and Prevention
Federal
Eligibility
18 Years and older
Enrollment
7,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2005
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Sep 29, 2005 · Synced Jul 21, 2026, 7:11 AM EDT
Completed Phase 1Phase 2 Interventional

Chemotherapy and Peripheral Stem Cell Transplantation Followed By Immunotherapy in Treating Patients With Multiple Myeloma

NCT00046852
View directory record Official record
Conditions
Infection, Multiple Myeloma and Plasma Cell Neoplasm
Interventions
filgrastim, pneumococcal polyvalent vaccine, therapeutic autologous lymphocytes, therapeutic tumor infiltrating lymphocytes, carmustine, cyclophosphamide, melphalan, bone marrow ablation with stem cell support, peripheral blood stem cell transplantation
Biological · Drug · Procedure
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
18 Years to 80 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2008
U.S. locations
2
States / cities
Baltimore, Maryland • Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Nov 3, 2019 · Synced Jul 21, 2026, 7:11 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Improving Pneumococcal Vaccination Rates in an Ambulatory Pre-surgical Testing Setting

NCT01787838
View directory record Official record
Conditions
Community Acquired Pneumonia
Interventions
Focused Health Education
Other
Lead sponsor
Carilion Clinic
Other
Eligibility
18 Years to 110 Years
Enrollment
2,509 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
1
States / cities
Roanoke, Virginia
Source: ClinicalTrials.gov public record
Updated Jul 18, 2017 · Synced Jul 21, 2026, 7:11 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Study Evaluating 13-valent Pneumococcal Conjugate Vaccine In Healthy Infants

NCT00444457
View directory record Official record
Conditions
Vaccines, Pneumococcal
Interventions
13-valent Pneumococcal Conjugate Vaccine, 7vPnC
Biological
Lead sponsor
Wyeth is now a wholly owned subsidiary of Pfizer
Industry
Eligibility
42 Days to 98 Days
Enrollment
1,712 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2009
U.S. locations
78
States / cities
Benton, Arkansas • Conway, Arkansas • Fayetteville, Arkansas + 67 more
Source: ClinicalTrials.gov public record
Updated Oct 14, 2012 · Synced Jul 21, 2026, 7:11 AM EDT
Active, not recruiting Phase 2 Interventional

Optimizing Cellular and Humoral Immunity by Vaccinating With PCV13 Before and After CAR-T Therapy

NCT04745559
View directory record Official record
Conditions
Diffuse Large-Cell Lymphoma, Primary Mediastinal Large B-Cell Lymphoma (PMBCL), Transformed Follicular Lymphoma (TFL), High-grade B-cell Lymphoma (HGBCL), Follicular Lymphoma
Interventions
Pneumococcal conjugate vaccine (PCV13), CD19 targeted CAR T Cell Therapy
Biological
Lead sponsor
H. Lee Moffitt Cancer Center and Research Institute
Other
Eligibility
18 Years and older
Enrollment
26 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2027
U.S. locations
1
States / cities
Tampa, Florida
Source: ClinicalTrials.gov public record
Updated Jan 28, 2026 · Synced Jul 21, 2026, 7:11 AM EDT
Completed Not applicable Interventional

Immune System Function Following Vaccination in HIV Infected Children Taking Anti-HIV Drugs

NCT00257127
View directory record Official record
Conditions
HIV Infections
Interventions
Pneumococcal 7-valent conjugate vaccine, Pneumococcal polysaccharide vaccine, Hepatitis B vaccine, Measles, mumps, and rubella virus vaccine, live
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
6 Years to 23 Years
Enrollment
101 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006
U.S. locations
24
States / cities
Birmingham, Alabama • Alhambra, California • Long Beach, California + 17 more
Source: ClinicalTrials.gov public record
Updated Oct 31, 2021 · Synced Jul 21, 2026, 7:11 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

PPV: Pneumococcal Polysaccharide Vaccine in Older Adults

NCT00239694
View directory record Official record
Conditions
Aging
Interventions
Pneumococcal Vaccine, Meningococcal Vaccine
Biological
Lead sponsor
National Institute on Aging (NIA)
NIH
Eligibility
65 Years and older
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2001 – 2012
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 3, 2015 · Synced Jul 21, 2026, 7:11 AM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

Immune Response to Pneumococcal Vaccination in Aging HIV Positive Adults

NCT03039491
View directory record Official record
Conditions
HIV Lipodystrophy, Aging
Interventions
Pneumococcal polysaccharide vaccine 23 valent, 13 valent conjugated pneumococcal vaccine
Biological
Lead sponsor
Medical University of South Carolina
Other
Eligibility
21 Years to 65 Years
Enrollment
160 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2020
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Jun 15, 2020 · Synced Jul 21, 2026, 7:11 AM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

Immune Response to Pneumococcal Vaccination in HIV Infected Individuals

NCT02515240
View directory record Official record
Conditions
Pneumococcal Infection
Interventions
PPV23
Biological
Lead sponsor
University of Toledo Health Science Campus
Other
Eligibility
19 Years to 65 Years
Enrollment
124 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2015
U.S. locations
1
States / cities
Toledo, Ohio
Source: ClinicalTrials.gov public record
Updated Aug 6, 2015 · Synced Jul 21, 2026, 7:11 AM EDT
Completed Phase 4 Interventional Results available

Apnea in Hospitalized Preterm Infants Following the Administration of Routine Childhood Vaccines

NCT03530124
View directory record Official record
Conditions
Apnea, Apnea Neonatal, Prematurity
Interventions
PCV13, DTaP, HBV, IPV, Hib
Biological
Lead sponsor
Duke University
Other
Eligibility
6 Weeks and older
Enrollment
223 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
4
States / cities
Atlanta, Georgia • Chapel Hill, North Carolina • Durham, North Carolina + 1 more
Source: ClinicalTrials.gov public record
Updated Feb 13, 2024 · Synced Jul 21, 2026, 7:11 AM EDT
Completed Phase 1Phase 2 Interventional

Pneumococcal Adult-dose Ranging Immunization Study

NCT00169234
View directory record Official record
Conditions
Pneumonia
Interventions
PCV7, Prevnar®, Pneumovax 23
Biological
Lead sponsor
Kaiser Permanente
Other
Eligibility
70 Years to 79 Years
Enrollment
220 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2005
U.S. locations
2
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Oct 12, 2017 · Synced Jul 21, 2026, 7:11 AM EDT
Completed Not applicable Interventional Results available

Immune Responses to Pneumococcal Vaccination Among HIV-infected Subjects

NCT00706550
View directory record Official record
Conditions
HIV Infections
Interventions
(PV) 23-valent pneumococcal polysaccharide vaccine, Placebo
Biological
Lead sponsor
US Department of Veterans Affairs
Federal
Eligibility
18 Years and older
Enrollment
107 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2012
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Apr 23, 2014 · Synced Jul 21, 2026, 7:11 AM EDT
Recruiting Phase 3 Interventional Accepts healthy volunteers

Study to Learn About Safety, Tolerability, and Immune Response of a Catch-up Pneumococcal Vaccine in Children and Adolescents

NCT07660198
View directory record Official record
Conditions
Pneumococcal Disease
Interventions
PG4, 20-valent pneumococcal conjugate vaccine (20vPnC)
Biological
Lead sponsor
Pfizer
Industry
Eligibility
15 Months to 17 Years
Enrollment
1,200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
43
States / cities
Birmingham, Alabama • Fair Oaks, California • Ontario, California + 29 more
Source: ClinicalTrials.gov public record
Updated Jul 8, 2026 · Synced Jul 21, 2026, 7:11 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Enhancing a Sustainable Pharmacy-based Immunization Program in Two States

NCT02615470
View directory record Official record
Conditions
Herpes Zoster, Pneumococcal Infections
Interventions
Enhanced immunization delivery model, Immunization update
Behavioral · Other
Lead sponsor
Auburn University
Other
Eligibility
18 Years and older
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2017
U.S. locations
2
States / cities
Auburn, Alabama • Claremont, California
Source: ClinicalTrials.gov public record
Updated Aug 19, 2019 · Synced Jul 21, 2026, 7:11 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 29, 2026 · Synced Jul 21, 2026, 7:11 AM EDT
Completed No phase listed Observational

Higher Infused Lymphocyte Counts Improve Antibody Response to Immunization After Autologous Stem Cell Transplantation

NCT00889278
View directory record Official record
Conditions
Lymphoma
Interventions
Not listed
Lead sponsor
Dartmouth-Hitchcock Medical Center
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2016
U.S. locations
1
States / cities
Lebanon, New Hampshire
Source: ClinicalTrials.gov public record
Updated May 21, 2018 · Synced Jul 21, 2026, 7:11 AM EDT