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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: PREVNAR 20 Clear all
Completed Phase 3 Interventional Results available

A Clinical Study of the V116 Vaccine for Children and Teenagers (V116-013)

NCT06177912
View directory record Official record
Conditions
Pneumococcal Infection
Interventions
V116, PPSV23
Biological
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Eligibility
2 Years to 17 Years
Enrollment
882 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
29
States / cities
Birmingham, Alabama • Phoenix, Arizona • Madera, California + 23 more
Source: ClinicalTrials.gov public record
Updated Mar 10, 2026 · Synced Sep 29, 2026, 1:27 AM EDT
Recruiting Phase 4 Interventional Accepts healthy volunteers

Vaccine Immunity and Inflammation in the Aging Person Living With HIV

NCT06514547
View directory record Official record
Conditions
HIV Infections, Age
Interventions
Conjugate Pneumococcal Vaccine 20 (PCV20)
Biological
Lead sponsor
Hennepin Healthcare Research Institute
Other
Eligibility
18 Years and older
Enrollment
250 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2029
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Jun 11, 2025 · Synced Sep 29, 2026, 1:27 AM EDT
Recruiting Phase 3 Interventional Accepts healthy volunteers

BEATRIX: A Study to Learn About a Group B Streptococcus Vaccine in Healthy Pregnant Women and Their Babies

NCT07160244
View directory record Official record
Conditions
Healthy
Interventions
Multivalent Group B streptococcus vaccine, Placebo, Infanrix hexa, Prevenar 20, Pediarix, Prevnar 20, Infanrix
Biological
Lead sponsor
Pfizer
Industry
Eligibility
1 Day to 49 Years
Enrollment
6,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2029
U.S. locations
120
States / cities
Birmingham, Alabama • Dothan, Alabama • Mobile, Alabama + 56 more
Source: ClinicalTrials.gov public record
Updated Sep 24, 2026 · Synced Sep 29, 2026, 1:27 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 20, 2021 · Synced Sep 29, 2026, 1:27 AM EDT
Recruiting Phase 1 Interventional Accepts healthy volunteers

A Study of V132 in Healthy Older Participants (V132-001)

NCT07712575
View directory record Official record
Conditions
Healthy
Interventions
V132 Formulation 1, V132 Formulation 2, V132 Formulation 3, PREVNAR 20™, CAPVAXIVE™
Biological
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Eligibility
50 Years to 75 Years
Enrollment
280 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2028
U.S. locations
9
States / cities
Anaheim, California • Hallandale, Florida • Hollywood, Florida + 6 more
Source: ClinicalTrials.gov public record
Updated Sep 1, 2026 · Synced Sep 29, 2026, 1:27 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Pneumococcal Conjugate Vaccination in HIV in Comparison to Polysaccharide Vaccine Boosting

NCT00622843
View directory record Official record
Conditions
HIV Infections, Streptococcus Pneumoniae
Interventions
pneumococcal conjugate vaccine, pneumococcal polysaccharide vaccine
Biological
Lead sponsor
Henry M. Jackson Foundation for the Advancement of Military Medicine
Other
Eligibility
18 Years to 60 Years
Enrollment
275 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2002 – 2013
U.S. locations
6
States / cities
San Diego, California • Washington D.C., District of Columbia • Tripler AMC, Hawaii + 3 more
Source: ClinicalTrials.gov public record
Updated Jun 7, 2025 · Synced Sep 29, 2026, 1:27 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
13
States / cities
Fayetteville, Arkansas • Huntington Park, California • Los Angeles, California + 9 more
Source: ClinicalTrials.gov public record
Updated May 21, 2026 · Synced Sep 29, 2026, 1:27 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Immune Response to Pneumococcal Polysaccharide Vaccine (23-valent) Predicts Asthma Status and Outcomes in Late Adolescents With Asthma

NCT02719379
View directory record Official record
Conditions
Asthma
Interventions
Pneumonococcal Polysaccharide Vaccine 23-valent (PPSV-23)
Biological
Lead sponsor
Rohit Divekar
Other
Eligibility
19 Years to 20 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Oct 10, 2017 · Synced Sep 29, 2026, 1:27 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

20-valent Pneumococcal Conjugate Vaccine Safety Study in Healthy Infants

NCT04379713
View directory record Official record
Conditions
Pneumococcal Disease
Interventions
20-valent pneumococcal conjugate vaccine, 13-valent pneumococcal conjugate vaccine
Biological
Lead sponsor
Pfizer
Industry
Eligibility
42 Days to 98 Days
Enrollment
1,511 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
41
States / cities
Tucson, Arizona • Fullerton, California • Oxnard, California + 33 more
Source: ClinicalTrials.gov public record
Updated Jun 12, 2023 · Synced Sep 29, 2026, 1:27 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Safety and Immunogenicity of V116 in Adults With Increased Risk for Pneumococcal Disease (V116-008)

NCT05696080
View directory record Official record
Conditions
Pneumococcal Infection
Interventions
V116, Placebo, PCV15, PPSV23
Biological
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Eligibility
18 Years to 64 Years
Enrollment
518 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
8
States / cities
Mesa, Arizona • Hialeah, Florida • West Palm Beach, Florida + 5 more
Source: ClinicalTrials.gov public record
Updated Mar 2, 2026 · Synced Sep 29, 2026, 1:27 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 21, 2024 · Synced Sep 29, 2026, 1:27 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 27, 2025 · Synced Sep 29, 2026, 1:27 AM EDT
Recruiting Phase 1 Interventional Accepts healthy volunteers

A Study of V118E in Healthy Participants (V118E-003)

NCT07168915
View directory record Official record
Conditions
Healthy
Interventions
V118E, PREVNAR 20™, Saline
Biological
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Eligibility
18 Years to 49 Years
Enrollment
126 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
4
States / cities
Hallandale, Florida • South Miami, Florida • Springfield, Missouri + 1 more
Source: ClinicalTrials.gov public record
Updated Jul 14, 2026 · Synced Sep 29, 2026, 1:27 AM EDT
Terminated Phase 3 Interventional Accepts healthy volunteers

Co-administration Study of an Investigational Live-Attenuated Respiratory Syncytial Virus Vaccine in Infants and Toddlers

NCT06397768
View directory record Official record
Conditions
RSV Immunization
Interventions
RSVt vaccine, Diphtheria, tetanus, pertussis, poliomyelitis , Haemophilus influenzae type b, and hepatitis B vaccine, Diphtheria, tetanus, pertussis, Haemophilus influenzae type b and poliomyelitis vaccine, Hepatitis B vaccine, Streptococcus pneumoniae vaccine, Rotavirus vaccine, Measles, mumps, and rubella vaccine, Varicella virus vaccine, Placebo
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
6 Months to 12 Months
Enrollment
2,226 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
66
States / cities
Birmingham, Alabama • Grand Bay, Alabama • Mobile, Alabama + 55 more
Source: ClinicalTrials.gov public record
Updated Feb 2, 2026 · Synced Sep 29, 2026, 1:27 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 7, 2022 · Synced Sep 29, 2026, 1:27 AM EDT
Recruiting Phase 3 Interventional Accepts healthy volunteers

A Study on the Immune Response and Safety of an Investigational Chickenpox Vaccine and a Marketed Measles, Mumps and Rubella Vaccine When Administered as Intramuscular Injection to Healthy Children 12 to 15 Months of Age

NCT06855160
View directory record Official record
Conditions
Chickenpox
Interventions
Candidate varicella vaccine, Marketed varicella vaccine, MMR vaccine, Hepatitis A vaccine, PCV (pneumococcal conjugate vaccine) 13, PCV 20, Vaxneuvance
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
12 Months to 15 Months
Enrollment
911 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
13
States / cities
Tucson, Arizona • Huntington Park, California • Sherman Oaks, California + 10 more
Source: ClinicalTrials.gov public record
Updated May 28, 2026 · Synced Sep 29, 2026, 1:27 AM EDT
Recruiting Phase 2 Interventional

Pneumococcal Pneumonia Vaccine Series (PCV20 and PPSV23) in Patients With Chronic Lymphocytic Leukemia Associated Immunodeficiency, PROTECT CLL Trial

NCT05183854
View directory record Official record
Conditions
Chronic Lymphocytic Leukemia, Small Lymphocytic Lymphoma
Interventions
Pneumococcal 20-valent Conjugate Vaccine, Pneumococcal Polyvalent Vaccine
Biological
Lead sponsor
University of Utah
Other
Eligibility
18 Years and older
Enrollment
61 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2028
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Apr 8, 2026 · Synced Sep 29, 2026, 1:27 AM EDT
Recruiting Phase 4 Interventional

Genetic Variation in IgG in Alpha 1 Antitrypsin Deficiency

NCT07135427
View directory record Official record
Conditions
Alpha 1-Antitrypsin, COPD, Antibody Deficiency
Interventions
20-valent pneumococcal conjugate vaccine
Biological
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
19 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Nov 9, 2025 · Synced Sep 29, 2026, 1:27 AM EDT
Active, not recruiting Phase 2 Interventional Accepts healthy volunteers

A Clinical Study to Evaluate the Safety, Tolerability, and Immunogenicity of VAX-31 in Healthy Infants

NCT06720038
View directory record Official record
Conditions
Pneumococcal Vaccines
Interventions
0.5 mL of the low dose VAX-31, 0.5 mL of the mid dose VAX-31, 0.5 mL of the high dose VAX-31, 0.5 mL dose of PCV20, 0.5 mL of the High-PFS dose VAX-31
Biological
Lead sponsor
Vaxcyte, Inc.
Industry
Eligibility
42 Days to 89 Days
Enrollment
900 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2027
U.S. locations
45
States / cities
Jonesboro, Arkansas • Gardena, California • Los Angeles, California + 32 more
Source: ClinicalTrials.gov public record
Updated May 14, 2026 · Synced Sep 29, 2026, 1:27 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study of V118 Formulation C (V118C) in Healthy Participants (V118C-001)

NCT06611033
View directory record Official record
Conditions
Healthy
Interventions
V118C, V118, PREVNAR 20™, Saline
Biological
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Eligibility
18 Years to 49 Years
Enrollment
65 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
3
States / cities
Hallandale, Florida • Hollywood, Florida • Galveston, Texas
Source: ClinicalTrials.gov public record
Updated Jan 19, 2026 · Synced Sep 29, 2026, 1:27 AM EDT
Active, not recruiting Phase 3 Interventional Accepts healthy volunteers

Safety, Tolerability, and Immunogenicity of VAX-31 in Adults ≥50 Years With Immunobridging to Adults 18-49

NCT07284654
View directory record Official record
Conditions
Pneumococcal Vaccines
Interventions
31 valent pneumococcal conjugate vaccine, PCV20, PCV21
Biological
Lead sponsor
Vaxcyte, Inc.
Industry
Eligibility
18 Years and older
Enrollment
4,049 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
30
States / cities
Birmingham, Alabama • Chinle, Arizona • Whiteriver, Arizona + 27 more
Source: ClinicalTrials.gov public record
Updated May 14, 2026 · Synced Sep 29, 2026, 1:27 AM EDT
Recruiting Phase 2 Interventional

Anti-pneumococcal Vaccine Strategy in Patients With Chronic Lymphocytic Leukemia

NCT05417165
View directory record Official record
Conditions
Chronic Lymphocytic Leukemia, Small Lymphocytic Lymphoma
Interventions
Pneumococcal 20-valent Conjugate Vaccine, Pneumococcal Polyvalent Vaccine
Biological
Lead sponsor
Seema Bhat
Other
Eligibility
18 Years and older
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Jan 6, 2026 · Synced Sep 29, 2026, 1:27 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Safety and Immunogenicity of GSK Meningococcal Group B Vaccine and 13-valent Pneumococcal Vaccine Administered Concomitantly With Routine Infant Vaccines to Healthy Infants

NCT03621670
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 Aug 19, 2026 · Synced Sep 29, 2026, 1:27 AM EDT
Recruiting Phase 4 Interventional

Vaccine Responses in Patients With B Cell Malignancies

NCT05170399
View directory record Official record
Conditions
Lymphoma
Interventions
AREXVY, ABRYSVO, PREVNAR 20, PNEUMOVAX 23, Heplisav -B, PREVNAR 13, Shingrix
Drug · Biological
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
18 Years to 90 Years
Enrollment
350 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2036
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 3, 2026 · Synced Sep 29, 2026, 1:27 AM EDT