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Showing 1–24 of 101 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Meningococcal Infections Clear all
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Study of Reduced Dose of Menomune® in Children Who Previously Received Meningococcal Diphtheria Toxoid Conjugate Vaccine

NCT00772070
View directory record Official record
Conditions
Meningitis, Meningococcemia, Neisseria Meningitidis
Interventions
A/C/Y/W-135, Meningococcal Polysaccharide Vaccine (Menomune®)
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
3 Years to 5 Years
Enrollment
173 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003 – 2004
U.S. locations
8
States / cities
Jonesboro, Arkansas • Little Rock, Arkansas • Woburn, Massachusetts + 5 more
Source: ClinicalTrials.gov public record
Updated Feb 13, 2014 · Synced Jun 26, 2026, 7:56 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Study to Assess the Safety and Immunogenicity of a Single Dose of GlaxoSmithKline's (GSK) Meningococcal MenACWY-CRM Vaccine (Menveo), Administered to Subjects 15 Through 55 Years of Age, Approximately 4-6 Years After Primary ACWY Vaccination

NCT02986854
View directory record Official record
Conditions
Infections, Meningococcal
Interventions
Meningococcal (groups A, C, W and Y) oligosaccharide diphtheria CRM-197 conjugate Vaccine (Menveo)
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
15 Years to 55 Years
Enrollment
704 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
36
States / cities
Birmingham, Alabama • Huntsville, Alabama • Chandler, Arizona + 27 more
Source: ClinicalTrials.gov public record
Updated Nov 24, 2019 · Synced Jun 26, 2026, 7:56 AM EDT
Completed Phase 2 Interventional Results available

Study of the Safety and Immune Response of a Meningococcal Vaccine Administered to Healthy Children

NCT00262028
View directory record Official record
Conditions
Prevention of Meningococcal Disease
Interventions
MenACWY-CRM Vaccine, MenACWY-PS Vaccine
Biological
Lead sponsor
Novartis Vaccines
Industry
Eligibility
12 Months to 10 Years
Enrollment
910 participants
Timeline
2005 – 2006
U.S. locations
1
States / cities
Oakland, California
Source: ClinicalTrials.gov public record
Updated Feb 10, 2016 · Synced Jun 26, 2026, 7:56 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

A Study of 2 Doses of Menactra®, a Meningococcal Conjugate Vaccine in Healthy Toddlers

NCT00384397
View directory record Official record
Conditions
Meningococcal Meningitis, Measles, Mumps, Rubella, Varicella
Interventions
Meningococcal Polysaccharide Diphtheria Toxoid Conjugate Vaccine, Meningococcal Polysaccharide Diphtheria Toxoid Conjugate
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
249 Days to 305 Days
Enrollment
1,128 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2009
U.S. locations
39
States / cities
Montgomery, Alabama • Fayetteville, Arkansas • Jonesboro, Arkansas + 35 more
Source: ClinicalTrials.gov public record
Updated Apr 13, 2016 · Synced Jun 26, 2026, 7:56 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Long-Term Antibody Persistence at 1, 3 and 5 Years After a Fourth Dose of GSK Biologicals' Hib-MenCY-TT Vaccine Compared to ActHIB

NCT00359983
View directory record Official record
Conditions
Neisseria Meningitidis, Haemophilus Influenzae Type b
Interventions
MenHibrix (Hib-MenCY-TT), Hib conjugate vaccine (ActHIB)
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
22 Months to 60 Months
Enrollment
270 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2011
U.S. locations
21
States / cities
Little Rock, Arkansas • Fountain Valley, California • Norwich, Connecticut + 15 more
Source: ClinicalTrials.gov public record
Updated Dec 15, 2016 · Synced Jun 26, 2026, 7:56 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Persistence of Antibodies in Adolescents and Adults 15 to 23 Years Who Received One Dose of Menactra® or Menomune®

NCT00269477
View directory record Official record
Conditions
Meningitis, Meningococcal Infection
Interventions
Meningococcal Polysaccharide Diphtheria Toxoid Conjugate
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
15 Years to 23 Years
Enrollment
145 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2007
U.S. locations
8
States / cities
Atlanta, Georgia • Marietta, Georgia • Woburn, Massachusetts + 5 more
Source: ClinicalTrials.gov public record
Updated Apr 13, 2016 · Synced Jun 26, 2026, 7:56 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Comparison of GlaxoSmithKline (GSK)134612 in Subjects With Increased Risk for Meningococcal Disease Versus Healthy Subjects

NCT01641042
View directory record Official record
Conditions
Infections, Meningococcal
Interventions
Meningococcal vaccine GSK134612
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
1 Year to 17 Years
Enrollment
86 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2015
U.S. locations
14
States / cities
Antioch, California • Daly City, California • Fremont, California + 9 more
Source: ClinicalTrials.gov public record
Updated Oct 17, 2017 · Synced Jun 26, 2026, 7:56 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Immunogenicity and Safety of Pediatric Vaccines When Administered With Menactra® in Healthy Toddlers

NCT00422292
View directory record Official record
Conditions
Meningococcal Meningitis, Measles, Mumps, Rubella, Varicella
Interventions
Meningococcal Polysaccharide Diphtheria Conjugate Vaccine, Measles, Mumps, Rubella and Varicella
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
9 Months to 12 Months
Enrollment
1,664 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2009
U.S. locations
87
States / cities
Tuscaloosa, Alabama • Tucson, Arizona • Jonesboro, Arkansas + 74 more
Source: ClinicalTrials.gov public record
Updated Apr 13, 2016 · Synced Jun 26, 2026, 7:56 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Safety and Immunogenicity of Intradermal Versus Subcutaneous Doses of Menomune®

NCT00850603
View directory record Official record
Conditions
Meningococcal Infections, Meningitis
Interventions
Meningococcal Polysaccharide Groups A\C\Y\W-135 Combined
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
18 Years to 55 Years
Enrollment
170 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2002 – 2004
U.S. locations
1
States / cities
East Stroudsburg, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 13, 2016 · Synced Jun 26, 2026, 7:56 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Immune Lot Consistency, Immunogenicity, and Safety of an Investigational Quadrivalent Meningococcal Conjugate Vaccine

NCT02842853
View directory record Official record
Conditions
Meningitis, Meningococcal Meningitis, Meningococcal Infections
Interventions
Meningococcal Polysaccharide (Serogroups A, C, Y, and W) Tetanus Toxoid Conjugate Vaccine, Meningococcal (Groups A, C, Y and W-135) Polysaccharide Diphtheria Toxoid Conjugate Vaccine
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
10 Years to 55 Years
Enrollment
3,344 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
89
States / cities
Birmingham, Alabama • Dothan, Alabama • Mobile, Alabama + 72 more
Source: ClinicalTrials.gov public record
Updated Apr 4, 2022 · Synced Jun 26, 2026, 7:56 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Immunogenicity and Safety of Meningococcal Vaccine GSK134612 Given as 1 or 2 Doses to Healthy 9-12 Months Old Toddlers.

NCT00471081
View directory record Official record
Conditions
Infections, Meningococcal
Interventions
Meningococcal vaccine GSK134612
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
9 Months to 9 Months
Enrollment
385 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2008
U.S. locations
19
States / cities
Birmingham, Alabama • Benton, Arkansas • Little Rock, Arkansas + 15 more
Source: ClinicalTrials.gov public record
Updated Jun 24, 2019 · Synced Jun 26, 2026, 7:56 AM EDT
Completed No phase listed Observational Results available

Safety of 4CMenB Exposure During Pregnancy

NCT02640677
View directory record Official record
Conditions
Infections, Meningococcal
Interventions
4CMenB
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
Not listed
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
1
States / cities
Wilmington, North Carolina
Source: ClinicalTrials.gov public record
Updated Sep 2, 2020 · Synced Jun 26, 2026, 7:56 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Study of Menactra® in Healthy Subjects at 9 Months and Concomitantly With Pentacel® at 15 to 18 Months of Age

NCT01659996
View directory record Official record
Conditions
Meningitis, Meningococcal Infection, Diphtheria, Tetanus, Pertussis, Haemophilus Influenzae Serotype b (Hib)
Interventions
Meningococcal polysaccharide diphtheria toxoid conjugate, Meningococcal polysaccharide diphtheria toxoid conjugate + Diphtheria and Tetanus Toxoids and Acellular Pertussis Adsorbed, Diphtheria and Tetanus Toxoids and Acellular Pertussis Adsorbed, Inactivated Poliovirus and Haemophilus b Conjugate
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
9 Months to 18 Months
Enrollment
1,394 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2015
U.S. locations
56
States / cities
Birmingham, Alabama • Pinson, Alabama • Tucson, Arizona + 50 more
Source: ClinicalTrials.gov public record
Updated Dec 14, 2015 · Synced Jun 26, 2026, 7:56 AM EDT
Completed No phase listed Observational Accepts healthy volunteers Results available

Post-licensure Safety Surveillance Study of Menactra Vaccine When Administered As a 2-dose Schedule to Children

NCT01689155
View directory record Official record
Conditions
Meningitis, Meningococcal Infection
Interventions
Menactra®: Meningococcal Polysaccharide Diphtheria Toxoid Conjugate
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
9 Months to 23 Months
Enrollment
116 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2016
U.S. locations
1
States / cities
Oakland, California
Source: ClinicalTrials.gov public record
Updated Nov 10, 2016 · Synced Jun 26, 2026, 7:56 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Study of the Safety of Menactra® Vaccine When Administered With Other Pediatric Vaccines to Healthy Toddlers

NCT00483574
View directory record Official record
Conditions
Meningococcal Meningitis, Measles, Mumps, Rubella, Varicella
Interventions
Menactra®: Meningococcal Polysaccharide Diphtheria Toxoid Conjugate, Measles-mumps-rubella-varicella vaccine, Routine paediatric vaccine - Pneumococcal conjugate (PCV), Routine paediatric vaccine - Hepatitis A
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
9 Months to 12 Months
Enrollment
1,378 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2009
U.S. locations
78
States / cities
Birmingham, Alabama • Dothan, Alabama • Pinson, Alabama + 68 more
Source: ClinicalTrials.gov public record
Updated May 15, 2016 · Synced Jun 26, 2026, 7:56 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Study of a Quadrivalent Meningococcal Conjugate Vaccine in Subjects Aged 56 and Older

NCT01732627
View directory record Official record
Conditions
Meningitis, Meningococcal Meningitis, Meningococcal Infections, Invasive Meningococcal Disease
Interventions
Meningococcal Polysaccharide (A, C, Y, and W 135) Tetanus Protein Conjugate Vaccine, Meningococcal Polysaccharide Vaccine, Groups A, C, Y, W 135 Combined
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
56 Years and older
Enrollment
301 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
12
States / cities
Chandler, Arizona • Scottsdale, Arizona • Denver, Colorado + 9 more
Source: ClinicalTrials.gov public record
Updated Apr 3, 2022 · Synced Jun 26, 2026, 7:56 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Study to Assess the Safety and Immunogenicity of a Single Dose of a Quadrivalent Meningococcal (MenACYW) Conjugate Vaccine in Older Adults Who Received a Primary Vaccination (3 or More Years Earlier) in Study MET49

NCT04142242
View directory record Official record
Conditions
Meningococcal Infection (Healthy Volunteers)
Interventions
Meningococcal Polysaccharide (serogroups A, C, Y, and W) Tetanus Toxoid Conjugate Vaccine, Blood sample
Biological · Other
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
59 Years and older
Enrollment
471 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2022
U.S. locations
33
States / cities
Chandler, Arizona • San Diego, California • Waterbury, Connecticut + 27 more
Source: ClinicalTrials.gov public record
Updated Sep 10, 2025 · Synced Jun 26, 2026, 7:56 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Safety and Immunogenicity Study of Hib-MenCY-TT Vaccine Compared to Licensed Hib Conjugate Vaccine

NCT00289783
View directory record Official record
Conditions
Haemophilus Influenzae Type b, Neisseria Meningitidis
Interventions
GSK Biologicals' Haemophilus influenzae type b and Neisseria meningitidis 792014 vaccine, ActHIB, PedvaxHIB, Pediarix, Prevnar, M-M-R II, Varivax
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
6 Weeks to 15 Months
Enrollment
4,441 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2008
U.S. locations
88
States / cities
Birmingham, Alabama • Phoenix, Arizona • Bryant, Arkansas + 76 more
Source: ClinicalTrials.gov public record
Updated Aug 23, 2018 · Synced Jun 26, 2026, 7:56 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Study of a Single Dose of Menactra® Vaccine 4-6 Years After Prior Menactra Vaccine

NCT01442675
View directory record Official record
Conditions
Meningitis, Meningococcal Infection
Interventions
Meningococcal (Groups A, C, Y and W-135) Polysaccharide Diphtheria Toxoid Conjugate: Menactra®
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
15 Years to 55 Years
Enrollment
834 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2012
U.S. locations
15
States / cities
Little Rock, Arkansas • San Diego, California • Bardstown, Kentucky + 12 more
Source: ClinicalTrials.gov public record
Updated Nov 17, 2014 · Synced Jun 26, 2026, 7:56 AM EDT
Active, not recruiting Phase 2 Interventional Accepts healthy volunteers

Safety, Tolerability, and Immunogenicity of MenABCWY Administered on Different Dosing Schedules in Healthy Adolescents

NCT05087056
View directory record Official record
Conditions
Meningitis, Meningococcal
Interventions
MenABCWY vaccine, Placebo
Combination Product
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
11 Years to 14 Years
Enrollment
312 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2027
U.S. locations
6
States / cities
Tucson, Arizona • Ventura, California • Macon, Georgia + 3 more
Source: ClinicalTrials.gov public record
Updated Apr 12, 2026 · Synced Jun 26, 2026, 7:56 AM EDT
Completed No phase listed Observational Results available

Meningococcal Quadrivalent CRM-197 Conjugate Vaccine Pregnancy Registry

NCT02223637
View directory record Official record
Conditions
Meningococcal Disease, Pregnancy, Infections, Meningococcal
Interventions
Meningococcal quadrivalent CRM-197 conjugate vaccine
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
Female only
Enrollment
93 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2017
U.S. locations
2
States / cities
Wilmington, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 20, 2019 · Synced Jun 26, 2026, 7:56 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Immunogenicity and Safety of Meningococcal Vaccine GSK134612 vs. Menactra® in Healthy Adolescent/Adults Aged 10-25 Years.

NCT00454909
View directory record Official record
Conditions
Infections, Meningococcal
Interventions
Meningococcal vaccine 134612, Menactra®
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
10 Years to 25 Years
Enrollment
873 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2008
U.S. locations
10
States / cities
Daly City, California • Fairfield, California • Redwood City, California + 6 more
Source: ClinicalTrials.gov public record
Updated Jun 7, 2018 · Synced Jun 26, 2026, 7:56 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Trial to Assess Immunogenicity and Safety of GlaxoSmithKline (GSK) Biologicals' Meningococcal ABCWY Vaccine as Compared to Meningococcal B Vaccine in Adolescents

NCT02212457
View directory record Official record
Conditions
Infections, Meningococcal
Interventions
Bexsero, Saline Placebo, Havrix, MenABCWY
Biological · Other
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
10 Years to 18 Years
Enrollment
1,063 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2016
U.S. locations
13
States / cities
Jonesboro, Arkansas • Hialeah, Florida • Melbourne, Florida + 10 more
Source: ClinicalTrials.gov public record
Updated Jun 26, 2019 · Synced Jun 26, 2026, 7:56 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Persistence of Protective Antibody Titers 12-24 Months After NmVac4-A/C/Y/W-135-DT Vaccination: Follow Up Study

NCT02500511
View directory record Official record
Conditions
Meningococcal Meningitis, Meningococcal Infections
Interventions
NmVac4-A/C/Y/W-135-DT™
Biological
Lead sponsor
JN-International Medical Corporation
Industry
Eligibility
18 Years to 55 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015
U.S. locations
1
States / cities
Towson, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 11, 2016 · Synced Jun 26, 2026, 7:56 AM EDT