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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Completed Phase 3 Interventional Accepts healthy volunteers Results available

Safety and Immunogenicity of V116 in Pneumococcal Vaccine-naïve Adults (V116-003, STRIDE-3)

NCT05425732
View directory record Official record
Conditions
Pneumococcal Infection
Interventions
V116, PCV20
Biological
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Eligibility
18 Years and older
Enrollment
2,663 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
60
States / cities
Birmingham, Alabama • Glendale, Arizona • Mesa, Arizona + 52 more
Source: ClinicalTrials.gov public record
Updated Oct 25, 2024 · Synced Sep 26, 2026, 1:31 PM EDT
Completed Not applicable Interventional

Validation of the GenePOC Strep A, C/G Assay for Detecting Group A, C and G β-hemolytic Streptococcus From Throat Swabs.

NCT03422341
View directory record Official record
Conditions
Pharyngitis, Infective
Interventions
Comparison between GenePOC CR and Reference Method
Device
Lead sponsor
Meridian Bioscience, Inc.
Industry
Eligibility
25 Months and older
Enrollment
497 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018
U.S. locations
5
States / cities
Madera, California • Indianapolis, Indiana • Detroit, Michigan + 2 more
Source: ClinicalTrials.gov public record
Updated May 3, 2021 · Synced Sep 26, 2026, 1:31 PM 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 27, 2023 · Synced Sep 26, 2026, 1:31 PM 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 Sep 26, 2026, 1:31 PM 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 14, 2026 · Synced Sep 26, 2026, 1:31 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

A Study to Learn About How a New Pneumococcal Vaccine Works in Children

NCT06531538
View directory record Official record
Conditions
Pneumococcal Disease
Interventions
PG4, 20-valent pneumococcal conjugate vaccine (20vPnC)
Biological
Lead sponsor
Pfizer
Industry
Eligibility
12 Months to 15 Months
Enrollment
225 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
35
States / cities
Washington D.C., District of Columbia • Miami, Florida • Chamblee, Georgia + 18 more
Source: ClinicalTrials.gov public record
Updated Mar 10, 2026 · Synced Sep 26, 2026, 1:31 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Immunogenicity of PCV-7 Vaccine in VLBW Infants

NCT00273325
View directory record Official record
Conditions
Pneumococcal Infections, Streptococcus Pneumoniae, Infant, Newborn, Infant, Low Birth Weight, Infant, Small for Gestational Age, Infant, Premature
Interventions
Not listed
Lead sponsor
NICHD Neonatal Research Network
Network
Eligibility
Up to 3 Months
Enrollment
368 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2009
U.S. locations
10
States / cities
Birmingham, Alabama • Palo Alto, California • Miami, Florida + 6 more
Source: ClinicalTrials.gov public record
Updated Mar 21, 2019 · Synced Sep 26, 2026, 1:31 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

A Phase IIb, Open-Label, Dose Ranging Study of 13-Valent Pneumococcal Conjugate Vaccine in Adults 55 Through 74 Years of Age Previously Vaccinated With 23-Valent Pneumococcal Polysaccharide Vaccine

NCT01654263
View directory record Official record
Conditions
Pneumococcal Infection
Interventions
Pneumococcal 13-valent Conjugate Vaccine [Diphtheria CRM197 Protein]
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
55 Years to 74 Years
Enrollment
884 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2015
U.S. locations
7
States / cities
Decatur, Georgia • Iowa City, Iowa • St Louis, Missouri + 4 more
Source: ClinicalTrials.gov public record
Updated Mar 26, 2017 · Synced Sep 26, 2026, 1:31 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Effects of Oral Probiotic Supplementation on Group B Strep (GBS) Rectovaginal Colonization in Pregnancy

NCT01479478
View directory record Official record
Conditions
Infection, Pregnancy
Interventions
Placebo, Probiotic dietary supplement
Drug · Dietary Supplement
Lead sponsor
Stanford University
Other
Eligibility
18 Years to 55 Years · Female only
Enrollment
251 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2017
U.S. locations
3
States / cities
Aptos, California • Santa Cruz, California • Stanford, California
Source: ClinicalTrials.gov public record
Updated Aug 19, 2018 · Synced Sep 26, 2026, 1:31 PM EDT
Completed Phase 2 Interventional Results available

A Phase 2 Safety and Exploratory Skin Lesion Measurement of TR-701 FA Study

NCT01519778
View directory record Official record
Conditions
Major Cutaneous Abscess, Cellulitis, Erysipelas
Interventions
TR701 FA
Drug
Lead sponsor
Trius Therapeutics LLC, a subsidiary of Merck & Co., Inc. (Rahway, New Jersey USA)
Industry
Eligibility
18 Years and older
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012
U.S. locations
10
States / cities
Anaheim, California • Buena Park, California • Chula Vista, California + 7 more
Source: ClinicalTrials.gov public record
Updated Aug 28, 2018 · Synced Sep 26, 2026, 1:31 PM 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 26, 2026, 1:31 PM EDT
Recruiting No phase listed Observational

PEDI Pediatric Autoimmune Neuropsychiatric Disorder Associated With Streptococcus Study

NCT06811935
View directory record Official record
Conditions
PANS, PANDAS
Interventions
Not listed
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
3 Years to 17 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
2
States / cities
Lebanon, New Hampshire • Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Jan 26, 2026 · Synced Sep 26, 2026, 1:31 PM 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 26, 2026, 1:31 PM EDT
Completed Phase 3 Interventional Results available

Group B Streptococcus Response After Probiotic Exposure

NCT04721912
View directory record Official record
Conditions
Group B Strep Infection
Interventions
Probiotic dietary supplement
Drug
Lead sponsor
University of New Mexico
Other
Eligibility
18 Years and older · Female only
Enrollment
68 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
1
States / cities
Albuquerque, New Mexico
Source: ClinicalTrials.gov public record
Updated Jan 13, 2025 · Synced Sep 26, 2026, 1:31 PM EDT
Not listed No phase listed Observational

Adjunctive Clindamycin Versus Linezolid for β-lactam Treated Patients With Invasive Group A Streptococcal Infections

NCT06126263
View directory record Official record
Conditions
Streptococcal Sepsis, Invasive Group A Beta-Haemolytic Streptococcal Disease, Necrotizing Soft Tissue Infection, Infection, Bloodstream, Infection, Bacterial, Streptococcal Toxic Shock Syndrome
Interventions
Linezolid, Clindamycin
Drug
Lead sponsor
National Institutes of Health Clinical Center (CC)
NIH
Eligibility
18 Years to 100 Years
Enrollment
1,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Nov 12, 2023 · Synced Sep 26, 2026, 1:31 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Prospective Cohort Pilot Study of the Clinical and Molecular Epidemiology of Staphylococcus Aureus in Pregnant Women at the Time of Group B Streptococcal Screening in a Large Urban Medical Center in Chicago, IL USA

NCT00532324
View directory record Official record
Conditions
Staphylococcus Aureus
Interventions
CA-MRSA Decolonization
Other
Lead sponsor
Ann & Robert H Lurie Children's Hospital of Chicago
Other
Eligibility
Female only
Enrollment
107 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2013
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Mar 27, 2025 · Synced Sep 26, 2026, 1:31 PM EDT
Completed Phase 2 Interventional

A Study for Patients With Complicated Skin and Skin Structure Infections

NCT00514527
View directory record Official record
Conditions
Staphylococcal Skin Infections, Wounds and Injuries, Abscess, Cellulitis, Streptococcal Infections
Interventions
oritavancin
Drug
Lead sponsor
Targanta Therapeutics Corporation
Industry
Eligibility
18 Years and older
Enrollment
294 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2008
U.S. locations
33
States / cities
Mobile, Alabama • Anaheim, California • Buena Park, California + 29 more
Source: ClinicalTrials.gov public record
Updated Aug 13, 2008 · Synced Sep 26, 2026, 1:31 PM 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 26, 2026, 1:31 PM EDT
Completed No phase listed Observational

Clinical Performance of the Checkable Medical At-Home Strep A Test

NCT05107362
View directory record Official record
Conditions
Streptococcus Pyogenes Infection, Pharyngitis, Respiratory Tract Infections
Interventions
untrained lay user performs investigational diagnostic test
Diagnostic Test
Lead sponsor
Checkable Medical Inc
Industry
Eligibility
5 Years and older
Enrollment
1,347 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
22
States / cities
Beverly Hills, California • Jacksonville, Florida • Miami, Florida + 18 more
Source: ClinicalTrials.gov public record
Updated Jul 11, 2023 · Synced Sep 26, 2026, 1:31 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Pneumococcal Reference Standard

NCT00479323
View directory record Official record
Conditions
Pneumococcal Infections
Interventions
Pneumovax 23
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 45 Years
Enrollment
250 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2008
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Dec 25, 2016 · Synced Sep 26, 2026, 1:31 PM 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 26, 2026, 1:31 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study to Assess the Safety, Tolerability and Immunogenicity of ASP3772, a Pneumococcal Vaccine, in Toddlers 12 to 15 Months of Age in Comparison to an Active Comparator

NCT04525599
View directory record Official record
Conditions
Healthy Volunteers, Pneumococcal Disease
Interventions
ASP3772, PCV13
Biological
Lead sponsor
Affinivax, Inc.
Industry
Eligibility
12 Months to 15 Months
Enrollment
75 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
17
States / cities
Bryant, Arkansas • Jonesboro, Arkansas • Anaheim, California + 14 more
Source: ClinicalTrials.gov public record
Updated Jun 5, 2022 · Synced Sep 26, 2026, 1:31 PM EDT
Completed No phase listed Observational

Streptococcal Infection and Respiratory Distress in Newborns

NCT00612937
View directory record Official record
Conditions
Group B Streptococci, Respiratory Distress in Newborn
Interventions
Not listed
Lead sponsor
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
NIH
Eligibility
Not listed
Enrollment
13,180 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2015
U.S. locations
2
States / cities
Oakland, California • Houston, Texas
Source: ClinicalTrials.gov public record
Updated Apr 4, 2018 · Synced Sep 26, 2026, 1:31 PM 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 26, 2026, 1:31 PM EDT