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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Streptococcal Infections Clear all
Recruiting Phase 3 Interventional Accepts healthy volunteers

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

NCT07629440
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 211 Days
Enrollment
3,230 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2029
U.S. locations
79
States / cities
Birmingham, Alabama • Centreville, Alabama • Fayetteville, Arkansas + 57 more
Source: ClinicalTrials.gov public record
Updated Jul 8, 2026 · Synced Jul 22, 2026, 3:59 PM EDT
Recruiting No phase listed Observational

Patterns of Neurodevelopmental Disorders

NCT06213090
View directory record Official record
Conditions
Neurodevelopmental Disorders, Autism Spectrum Disorder, Pediatric Autoimmune Neuropsychiatric Disorder Associated With Streptococcal Infection, Pediatric Acute-Onset Neuropsychiatric Syndrome, Down Syndrome, Epilepsy, Mitochondrial Encephalomyopathies, Cerebral Folate Deficiency
Interventions
Not listed
Lead sponsor
Richard Frye
Other
Eligibility
Not listed
Enrollment
1,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2030
U.S. locations
1
States / cities
Phoenix, Arizona
Source: ClinicalTrials.gov public record
Updated Apr 15, 2026 · Synced Jul 22, 2026, 3:59 PM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

A Single Ascending Dose Study in Adults (Stage 1) and Single Ascending Dose-Finding Study (Stage 2) in Elderly Subjects With ASP3772, A Pneumococcal Vaccine

NCT03803202
View directory record Official record
Conditions
Pneumonia, Bacterial, Healthy Volunteers, Pneumococcal Disease
Interventions
ASP3772, PCV13, PPSV23
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years to 85 Years
Enrollment
630 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
26
States / cities
Banning, California • San Diego, California • San Marcos, California + 21 more
Source: ClinicalTrials.gov public record
Updated Dec 20, 2023 · Synced Jul 22, 2026, 3:59 PM EDT
Completed Phase 2 Interventional

Preventive Measures for Childhood-Onset Obsessive-Compulsive Disorder and Tic Disorders (PANDAS Subgroup)

NCT00001359
View directory record Official record
Conditions
Mental Disorder Diagnosed in Childhood, Obsessive Compulsive Disorder, Streptococcal Infection, Tic Disorder
Interventions
Penicillin or Placebo
Drug
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
Not listed
Enrollment
90 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1993 – 2006
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 3, 2008 · Synced Jul 22, 2026, 3:59 PM 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 10, 2015 · Synced Jul 22, 2026, 3:59 PM EDT
Completed No phase listed Observational

In Vitro Diagnostic Device for the Detection of Strep A

NCT02068469
View directory record Official record
Conditions
Streptococcal Sore Throat
Interventions
Not listed
Lead sponsor
IQuum, Inc.
Industry
Eligibility
3 Years and older
Enrollment
799 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
5
States / cities
Norwich, Connecticut • Savannah, Georgia • Rochester, New York + 2 more
Source: ClinicalTrials.gov public record
Updated Aug 30, 2016 · Synced Jul 22, 2026, 3:59 PM EDT
Completed Phase 3 Interventional

APC-231 Once a Day (QD) for 7 Days vs. Penicillin Taken Four Times a Day (QID) in Pediatric Patients With Strep Throat

NCT00100126
View directory record Official record
Conditions
Pharyngitis
Interventions
Amoxicillin Pulsatile Release Multiparticluate Sprinkle
Drug
Lead sponsor
Advancis Pharmaceutical Corporation
Industry
Eligibility
6 Months to 12 Years
Enrollment
500 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2005
U.S. locations
2
States / cities
Simpsonville, South Carolina • Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Oct 24, 2006 · Synced Jul 22, 2026, 3:59 PM EDT
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 Jul 22, 2026, 3:59 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

A Phase 1/2, Randomized, Placebo-controlled, Observer-blinded Trial To Evaluate The Safety, Tolerability, And Immunogenicity Of A Multivalent Group B Streptococcus Vaccine In Healthy Adults 18 To 49 Years Of Age

NCT03170609
View directory record Official record
Conditions
Group B Streptococcal Infections
Interventions
Multivalent group B streptococcus vaccine, Placebo
Biological
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 49 Years
Enrollment
365 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
4
States / cities
Stockbridge, Georgia • Bardstown, Kentucky • Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Jul 1, 2019 · Synced Jul 22, 2026, 3:59 PM EDT
Completed Phase 3 Interventional

A Multicenter, Randomized, Double-Blind, Double-Dummy Comparative Trial of Azithromycin Sustained Release Versus 3-Day Azithromycin for the Treatment of Strep Throat in Adolescents and Adults

NCT00644293
View directory record Official record
Conditions
Pharyngitis, Tonsillitis
Interventions
azithromycin (Zithromax), placebo, azithromycin SR
Drug
Lead sponsor
Pfizer
Industry
Eligibility
13 Years and older
Enrollment
598 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2004
U.S. locations
16
States / cities
Clearwater, Florida • Boise, Idaho • Meridian, Idaho + 8 more
Source: ClinicalTrials.gov public record
Updated Jun 7, 2011 · Synced Jul 22, 2026, 3:59 PM EDT
Active, not recruiting Phase 1Phase 2 Interventional Accepts healthy volunteers

Phase I/II Study to a Assess the GBS-06 Vaccine Manufactured by Inventprise, Inc., in Healthy, Non-Pregnant, Adult Women of Childbearing Age.

NCT06611371
View directory record Official record
Conditions
Group B Streptococcal Infections
Interventions
IVT GBS-06, Placebo
Biological
Lead sponsor
Inventprise Inc.
Industry
Eligibility
18 Years to 49 Years · Female only
Enrollment
600 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Nov 17, 2025 · Synced Jul 22, 2026, 3:59 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

A Study to Evaluate the Safety, Tolerability, and Immunogenicity of V114 Followed by PNEUMOVAX™23 in Healthy Adults 50 Years of Age or Older (V114-016/PNEU-PATH)

NCT03480763
View directory record Official record
Conditions
Pneumococcal Infections
Interventions
V114, Prevnar 13™, PNEUMOVAX™23
Biological
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Eligibility
50 Years and older
Enrollment
652 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
15
States / cities
Chandler, Arizona • Phoenix, Arizona • Spring Valley, California + 12 more
Source: ClinicalTrials.gov public record
Updated Nov 1, 2021 · Synced Jul 22, 2026, 3:59 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

A Study to Evaluate the Safety, Tolerability, and Immunogenicity of V116 in Pneumococcal Vaccine-experienced Adults (V116-006, STRIDE-6)

NCT05420961
View directory record Official record
Conditions
Pneumonia, Pneumococcal
Interventions
V116, PCV15, PPSV23
Biological
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Eligibility
50 Years and older
Enrollment
717 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
15
States / cities
Birmingham, Alabama • Glendale, Arizona • Tempe, Arizona + 12 more
Source: ClinicalTrials.gov public record
Updated Oct 25, 2024 · Synced Jul 22, 2026, 3:59 PM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

Study Evaluating Pneumococcal Vaccine in Healthy Infants

NCT00205803
View directory record Official record
Conditions
Healthy Subjects, Pneumococcal Infections
Interventions
13-Valent Pneumococcal Conjugate Vaccine (13vPnC), 7-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
249 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2007
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Aug 14, 2012 · Synced Jul 22, 2026, 3:59 PM EDT
Not listed Phase 4 Interventional

A Study to Evaluate the Benefit of Octagam 5%® in Subjects With Pediatric Acute-onset Neuropsychiatric Syndrome (PANS)

NCT03348618
View directory record Official record
Conditions
Pediatric Acute-Onset Neuropsychiatric Syndrome, Pediatric Autoimmune Neuropsychiatric Disorders Associated With Streptococcal Infections
Interventions
IVIG
Biological
Lead sponsor
IMMUNOe Research Centers
Industry
Eligibility
4 Years to 16 Years
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
3
States / cities
Centennial, Colorado • Papillion, Nebraska • Charlotte, North Carolina
Source: ClinicalTrials.gov public record
Updated Nov 18, 2019 · Synced Jul 22, 2026, 3:59 PM EDT
Completed Phase 4 Interventional Results available

Pharmacokinetics of Retapamulin in Pediatric Subjects With Uncomplicated Skin Infections.

NCT00555061
View directory record Official record
Conditions
Skin Infections, Bacterial
Interventions
Retapamulin Ointment, 1%
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
2 Months to 24 Months
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2008
U.S. locations
6
States / cities
Tuscaloosa, Alabama • Bentonville, Arkansas • Orange, California + 3 more
Source: ClinicalTrials.gov public record
Updated Dec 27, 2016 · Synced Jul 22, 2026, 3:59 PM 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 1, 2021 · Synced Jul 22, 2026, 3:59 PM EDT
Completed Not applicable Interventional

Antimicrobial Stewardship for Primary Care Pediatricians

NCT01806103
View directory record Official record
Conditions
Acute Sinusitis, Streptococcal Pharyngitis, Pneumonia, Viral Infection
Interventions
Antimicrobial Stewardship Bundle
Behavioral
Lead sponsor
Children's Hospital of Philadelphia
Other
Eligibility
Not listed
Enrollment
170 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 6, 2013 · Synced Jul 22, 2026, 3:59 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Association Between a Mother's Exposure to "Strep Throat" and Her Baby's Developing Heart Disease

NCT01603732
View directory record Official record
Conditions
Congenital Heart Disease in Pregnancy
Interventions
Not listed
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years and older · Female only
Enrollment
397 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2015
U.S. locations
2
States / cities
St Louis, Missouri • Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Apr 3, 2017 · Synced Jul 22, 2026, 3:59 PM EDT
Terminated Phase 1 Interventional Accepts healthy volunteers

Aerosolized and Intravenous Colistin in Healthy Adults

NCT01863719
View directory record Official record
Conditions
Pathogen Resistance, Pneumococcal Infection, Pneumonia
Interventions
Colistimethate sodium
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 45 Years
Enrollment
27 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2017
U.S. locations
2
States / cities
Baltimore, Maryland • Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Mar 1, 2020 · Synced Jul 22, 2026, 3:59 PM EDT
Completed Phase 3 Interventional Results available

Comparative Study of Ceftaroline vs. Vancomycin Plus Aztreonam in Adult Subjects With Complicated Skin Infections

NCT00423657
View directory record Official record
Conditions
Bacterial Infections
Interventions
ceftaroline, vancomycin plus aztreonam, Placebo
Drug
Lead sponsor
Forest Laboratories
Industry
Eligibility
18 Years and older
Enrollment
680 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007
U.S. locations
17
States / cities
Buena Park, California • Hawaiian Gardens, California • Los Angeles, California + 14 more
Source: ClinicalTrials.gov public record
Updated Mar 13, 2017 · Synced Jul 22, 2026, 3:59 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Characterization of Childhood-Onset Obsessive-Compulsive Disorder

NCT00044239
View directory record Official record
Conditions
Obsessive-Compulsive Disorder
Interventions
Not listed
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
4 Years to 12 Years
Enrollment
49 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2002 – 2010
U.S. locations
4
States / cities
Little Rock, Arkansas • Gainesville, Florida • New York, New York + 1 more
Source: ClinicalTrials.gov public record
Updated Jul 1, 2017 · Synced Jul 22, 2026, 3:59 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 Jul 22, 2026, 3:59 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 Jul 22, 2026, 3:59 PM EDT