Independent directory Public ClinicalTrials.gov records United States
Clinical Trials Finder
Objective public record navigation
Search Results

Search by objective public record fields.

Search by query text, NCT ID, condition, intervention, sponsor, city, state, recruitment status, phase, study type, healthy volunteer eligibility, sex, or age. Results are retrieved from ClinicalTrials.gov and synchronized into the directory. Search pages remain noindex by default.

Clear filters
ClinicalTrials.gov public records Last synced Sep 3, 2026, 10:24 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 164 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Condition: Pneumococcal Disease Clear all
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Study Evaluating 13 Valent Pneumococcal Conjugate Vaccine With Trivalent Inactivated Influenza Vaccine

NCT00521586
View directory record Official record
Conditions
Influenza
Interventions
13 valent pneumococcal conjugate vaccine
Biological
Lead sponsor
Pfizer
Industry
Eligibility
50 Years to 59 Years
Enrollment
1,116 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2013
U.S. locations
41
States / cities
Chandler, Arizona • Rolling Hills Estates, California • Aurora, Colorado + 29 more
Source: ClinicalTrials.gov public record
Updated Apr 8, 2015 · Synced Sep 3, 2026, 10:24 AM EDT
Recruiting Phase 3 Interventional

Study of a Single Dose of a 21-valent Pneumococcal Conjugate Vaccine in Children and Adolescents With Sickle Cell Disease

NCT07247188
View directory record Official record
Conditions
Sickle Cell Disease
Interventions
PCV21, 20vPCV
Biological
Lead sponsor
Sanofi
Industry
Eligibility
2 Years to 17 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
5
States / cities
Atlanta, Georgia • Omaha, Nebraska • New Brunswick, New Jersey + 1 more
Source: ClinicalTrials.gov public record
Updated Apr 14, 2026 · Synced Sep 3, 2026, 10:24 AM EDT
Withdrawn No phase listed Observational

Microbiota of the Respiratory Flora in Children With Cystic Fibrosis During the First Year of Life

NCT00977158
View directory record Official record
Conditions
Cystic Fibrosis
Interventions
Throat Swab
Procedure
Lead sponsor
Tufts Medical Center
Other
Eligibility
1 Day to 3 Months
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2011
U.S. locations
2
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 17, 2015 · Synced Sep 3, 2026, 10:24 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 17, 2025 · Synced Sep 3, 2026, 10:24 AM EDT
Recruiting Phase 2 Interventional Accepts healthy volunteers

Safety and Efficacy of wSp Vaccine in Young Children

NCT07216430
View directory record Official record
Conditions
Acute Otitis Media (AOM)
Interventions
wSp vaccine, Saline (0.9% NaCl)
Biological
Lead sponsor
Serum Life Science Europe GmbH
Industry
Eligibility
5 Months to 7 Months
Enrollment
320 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2029
U.S. locations
7
States / cities
Pittsford, New York • Rochester, New York
Source: ClinicalTrials.gov public record
Updated Jun 1, 2026 · Synced Sep 3, 2026, 10:24 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Study Evaluating The Safety, Tolerability And Immunogenicity Of A 13-Valent Pneumococcal Conjugate Vaccine (13vPnC)

NCT00546572
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 Sep 3, 2026, 10:24 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Serologic Response to Pneumococcal Vaccination Among Esophageal Cancer Patients With High Grade Lymphopenia After Chemoradiation

NCT06181656
View directory record Official record
Conditions
Pneumococcal Vaccine, Esophageal Cancer, Lymphopenia, Chemoradiation
Interventions
Pneumonia vaccine
Biological
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2027
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated May 19, 2026 · Synced Sep 3, 2026, 10:24 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 3, 2026, 10:24 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 Sep 3, 2026, 10:24 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

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

NCT05844423
View directory record Official record
Conditions
Pneumococcal Vaccines
Interventions
0.5 ml dose of 1.1 mcg VAX-24, 0.5 ml dose of PCV20, 0.5 ml dose of 2.2 mcg VAX-24, 0.5 ml dose of 2.2/4.4 mcg VAX-24
Biological
Lead sponsor
Vaxcyte, Inc.
Industry
Eligibility
42 Days to 89 Days
Enrollment
802 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
32
States / cities
Jonesboro, Arkansas • Madera, California • Tampa, Florida + 22 more
Source: ClinicalTrials.gov public record
Updated Sep 10, 2025 · Synced Sep 3, 2026, 10:24 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Prospective Trial of Vaccine Responses Against Pneumococcus and Influenza in Adult Cancer Patients 65 Years of Age and Older

NCT00741039
View directory record Official record
Conditions
Breast Cancer, Lung Cancer, Prostate Cancer
Interventions
inactivated influenza vaccine and the 23- valent pneumococcal vaccine, inactivated influenza vaccine and the PPV23 vaccine (Pneumovax)
Biological
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
65 Years and older
Enrollment
126 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2012
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Nov 19, 2015 · Synced Sep 3, 2026, 10:24 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Immunogenicity of GSKs' MMR Vaccine (209762) vs. M-M-R® II, When Given With Routine Vaccines at 12-15 Months of Age

NCT00861744
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 Sep 3, 2026, 10:24 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 Sep 3, 2026, 10:24 AM EDT
Completed Phase 4 Interventional Results available

Study Response of 13-valent Conjugate Pneumococcal Vaccine in Patients With End Stage Renal Disease

NCT01974817
View directory record Official record
Conditions
End Stage Renal Disease
Interventions
13-valent conjugate pneumococcal vaccine
Biological
Lead sponsor
Michigan State University
Other
Eligibility
50 Years and older
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
1
States / cities
Lansing, Michigan
Source: ClinicalTrials.gov public record
Updated Nov 16, 2016 · Synced Sep 3, 2026, 10:24 AM EDT
Not listed Phase 1 Interventional Accepts healthy volunteers

A Study to Evaluate Tolerability, Safety and Immunogenicity of MVX01 Pneumococcal Vaccine

NCT06337643
View directory record Official record
Conditions
Pneumococcal Vaccine
Interventions
MVX01, MVX01 Placebo
Biological
Lead sponsor
Matrivax Research and Development Corporation
Industry
Eligibility
18 Years to 75 Years
Enrollment
75 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
2
States / cities
Savannah, Georgia • Knoxville, Tennessee
Source: ClinicalTrials.gov public record
Updated Mar 28, 2024 · Synced Sep 3, 2026, 10:24 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 10, 2016 · Synced Sep 3, 2026, 10:24 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Long-term Impact of Pneumococcal Conjugate Vaccine on Carriage

NCT00294021
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 Sep 3, 2026, 10:24 AM EDT
Active, not recruiting Phase 4 Interventional

Immunogenicity and Clinical Efficacy of 20-valent Pneumococcal Conjugate Vaccine (PCV20) in Lymphoma Survivors After Treatment With Anti-CD20 Therapy

NCT06049134
View directory record Official record
Conditions
Lymphoma
Interventions
PCV20
Biological
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Mar 8, 2026 · Synced Sep 3, 2026, 10:24 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Modulation of Steroid Immunosuppression by Alveolar Efferocytosis

NCT03034642
View directory record Official record
Conditions
Pulmonary Disease, Chronic Obstructive, Pneumonia, Bacterial
Interventions
Bronchoscopy with bilateral bronchoalveolar lavages
Procedure
Lead sponsor
VA Ann Arbor Healthcare System
Federal
Eligibility
18 Years to 80 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2021
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated May 2, 2022 · Synced Sep 3, 2026, 10:24 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 Sep 3, 2026, 10:24 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

A Phase 1/Phase 2 Study of Polyvalent Pneumococcal Conjugate Vaccine (V116) in Adults (V116-001)

NCT04168190
View directory record Official record
Conditions
Pneumonia, Pneumococcal
Interventions
V116, Pneumovax™23
Biological
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Eligibility
18 Years and older
Enrollment
600 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
20
States / cities
Birmingham, Alabama • Mesa, Arizona • Coral Gables, Florida + 15 more
Source: ClinicalTrials.gov public record
Updated Sep 15, 2022 · Synced Sep 3, 2026, 10:24 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 3, 2026, 10:24 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 1, 2021 · Synced Sep 3, 2026, 10:24 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 Sep 3, 2026, 10:24 AM EDT