252 completed, 15 unknown, 11 recruiting, 5 active not recruiting. 119 Phase 3, 88 Phase 2, 38 Phase 4, 20 Phase 1, 7 Not applicable.
Follow Meningococcal Infections: new trials by email Literature Review of Meningococcal Infections trials Research Report on Meningococcal Infections
Tick up to 5 trials to compare them side by side (eligibility, arms, endpoints, adverse events) in a Literature Matrix.
| Trial | Phase | Status | Sponsor | Enrollment | Start | Updated |
|---|---|---|---|---|---|---|
| Single-center, Open-label Study: Immunogenicity and Safety Observation After Vaccination With ACYW135 Meningococcal Polysaccharide Vaccine in Junior High School Students Aged 13-15 Years MPSV-ACYW - Meningococcal Disease; Meningococcal Meningitis | Phase 4 | Not yet recruiting | Zhejiang Provincial Center for Disease Control and Prevention | 200 | 2026-10-20 | 2026-10-21 |
| A Clinical Trial of the ACYW135 Group Meningococcal Polysaccharide-Conjugated Vaccine (CRM197 Vector) Previously vaccinated with MCV4 (CanSino), Previously vaccinated with MPSV4 (LvZhu) - Epidemic Meningitis | Not yet recruiting | CanSino Biologics Inc. | 180 | 2026-09-15 | 2026-08-03 | |
| Immunogenicity and Safety Study of an Investigational Quadrivalent Meningococcal Conjugate Vaccine Administered in Healthy Infants and Toddlers in China MenQuadfi® (Meningococcal Polysaccharide [Serogroups A, C, W, and Y] Tetanus Toxoid Conjugate Vaccine) (Sanofi Pasteur Inc., Swiftwater, PA, USA), Menhycia® (ACYW135 Meningococcal Conjugate Vaccine [CRM197]) (CanSino Biologics Inc., China) - Meningococcal Infection, Healthy Volunteers | Phase 3 | Recruiting | Sanofi | 4568 | 2026-08-22 | 2026-10-19 |
| Metagenomic Analysis of the Pharynx in High Risk Partners Gonorrhea, Neisseria Gonorrhea | Not yet recruiting | Guy's and St Thomas' NHS Foundation Trust | 100 | 2026-07-14 | 2026-06-30 | |
| Phase Ⅲ Trial of Group ACYW135 Meningococcal Conjugate Vaccine in Children Aged 3-5 Months experimental vaccine, Active Comparator vaccine - Epidemic Meningitis, Meningococcal Vaccines | Phase 3 | Recruiting | Sinovac Biotech Co., Ltd | 880 | 2026-03-25 | 2026-08-10 |
| Phase Ⅲ Trial of Group ACYW135 Meningococcal Conjugate Vaccine in Children Aged 12-23 Months experimental vaccine, Active Comparator vaccine - Epidemic Meningitis, Meningococcal Vaccines | Phase 3 | Recruiting | Sinovac Biotech Co., Ltd | 1040 | 2026-03-22 | 2026-08-10 |
| Phase Ⅲ Trial of Group ACYW135 Meningococcal Conjugate Vaccine in Children Aged 6-11 Months experimental vaccine, Active Comparator vaccine - Epidemic Meningitis, Meningococcal Vaccines | Phase 3 | Recruiting | Sinovac Biotech Co., Ltd | 1040 | 2026-03-22 | 2026-08-10 |
| Phase Ⅲ Trial of Group ACYW135 Meningococcal Conjugate Vaccine in Children Aged 2-6 Years experimental vaccine, active comparator vaccine - Epidemic Meningitis, Meningococcal Vaccines | Phase 3 | Active not recruiting | Sinovac Biotech Co., Ltd | 660 | 2026-03-22 | 2026-08-10 |
| Phase Ia Clinical Trial of Group ACYW135X Meningococcal Conjugate Vaccine high-dose Group ACYW135X Meningococcal Conjugate Vaccine, medium-dose Group ACYW135X Meningococcal Conjugate Vaccine, low-dose Group ACYW135X Meningococcal Conjugate Vaccine - Meningococcal Meningitis | Phase 1 | Not yet recruiting | Sinovac Life Sciences Co., Ltd. | 150 | 2026-01-21 | 2026-01-28 |
| Clinical Trial of the Adsorbed Acellular Pertussis (Tricomponent) DTaP-Haemophilus Influenzae Type b (Conjugate)-ACYW135 Group Meningococcal (Conjugate) Combined Vaccine Adsorbed Acellular Pertussis (3-Component) Diphtheria-Tetanus-Pertussis-Haemophilus influenzae type b (Conjugate)-Meningococcal Group ACYW135 (Conjugate) Combined Vaccine (DTcP-Hib-MCV4), DTcP-Hib-MCV4, Adsorbed Acellular Pertussis (3-Component) Diphtheria-Tetanus-Pertussis (DTcP) - Diphtheria, Tetanus and Acellular Pertussis, Epidemic Meningitis | Phase 1 | Recruiting | CanSino Biologics Inc. | 260 | 2025-12-19 | 2025-12-31 |
| Immunogenicity and Safety of Meningococcal Conjugate Vaccine (EG-MCV4) in Healthy Adults Aged 19 to 55 Years Old EG-MCV4, Menveo - Meningococcal Infections | Phase 2 / Phase 3 | Recruiting | EyeGene Inc. | 1123 | 2025-10-15 | 2025-12-01 |
| Immunogenicity and Safety Study of an Investigational Quadrivalent Meningococcal Conjugate Vaccine Administered in Healthy Children and Adolescents in China MenACYW conjugate vaccine, MenACYW135 polysaccharide vaccine, MenAC conjugate vaccine - Meningococcal Infection, Healthy Volunteers | Phase 3 | Completed | Sanofi | 1602 | 2025-09-26 | 2026-10-19 |
| Investigating Gender and Sex Differences in Immune Responses Through Vaccination of Transgender and Cisgender Persons Serogroup B meningococal vaccine - Meningococcal Meningitis, Serogroup B, Transgender Persons | Phase 4 | Recruiting | University Ghent | 250 | 2025-01-31 | 2026-01-20 |
| A Clinical Trial of ACYW135 Group Meningococcal Polysaccharide Conjugate Vaccine (CRM197 Vector) in 7 to 17 Year Olds MCV4, MPSV4 - Meningococcal Meningitis | Phase 3 | Completed | CanSino Biologics Inc. | 840 | 2024-12-14 | 2026-08-06 |
| Azithromycin for Meningococcal Carriage Azithromycin - Meningococcal Infections | Phase 2 | Completed | Emory University | 764 | 2024-11-12 | 2026-06-05 |
| Clinical Study of the Safety of Menhycia® in 3-Month-Old Infants MCV4 - Epidemic Meningitis | Phase 4 | Completed | CanSino Biologics Inc. | 3011 | 2024-06-12 | 2026-08-13 |
| A Study to Learn About the Safety of PENBRAYA During Pregnancy PENBRAYA - Meningococcal Disease | Recruiting | Pfizer | 50 | 2024-05-03 | 2026-08-17 | |
| A Study of the ACYW135 Meningococcal Polysaccharide Conjugate Vaccine ACYW135 Meningococcal Polysaccharide Conjugate Vaccine, ACYW135 Meningococcal Polysaccharide Vaccine - Meningococcal Meningitis | Phase 2 | Unknown | Aimei Vacin BioPharm (Zhejiang) Co., Ltd. | 1200 | 2024-03-20 | 2024-03-29 |
| A Clinical Trial to Evaluate the Immunogenicity and Safety of Group ACYW135 Meningococcal Conjugate Vaccine (CRM197) in Adults Aged 18 to 55 Years batch 1 of Group ACYW135 Meningococcal Conjugate Vaccine (CRM197) (MCV4), batch 2 of MCV4, batch 3 of MCV4 - Meningococcal Meningitis | Phase 3 | Completed | CanSino Biologics Inc. | 1480 | 2024-03-20 | 2026-08-06 |
| Meningococcal B Vaccine in Patients with Asplenia Bexsero - Splenectomy; Status | Phase 2 | Recruiting | Medical University of Vienna | 80 | 2024-03-12 | 2024-11-22 |
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Meningitis, Meningococcal (125) · Meningitis (92) · Tetanus (12) · Whooping Cough (12) · Diphtheria (10) · Haemophilus Infections (9) · Pneumococcal Infections (7) · Chickenpox (5) · Hepatitis B (5) · Measles (4) · Mumps (4) · Rubella (4) · Acquired Immunodeficiency Syndrome (3) · Central Nervous System Diseases (2)
Bacterial Infections and Mycoses (295) · Neisseriaceae Infections (295) · Bacterial Infections (294) · Gram-Negative Bacterial Infections (294) · Infections (294) · Neuroinflammatory Diseases (171) · Nervous System Diseases (169) · Central Nervous System Diseases (127) · Central Nervous System Bacterial Infections (126) · Central Nervous System Infections (125) · Meningitis, Bacterial (125) · Meningitis (78) · Gram-Positive Bacterial Infections (20) · Virus Diseases (20)
Meningococcal Vaccines (74) · 4CMenB vaccine (28) · MenACWY-CRM vaccine (16) · Heptavalent Pneumococcal Conjugate Vaccine (14) · Vaccines (14) · Tetanus Toxoid (13) · 13-valent pneumococcal vaccine (10) · Measles-Mumps-Rubella Vaccine (10) · Hepatitis B Vaccines (9) · diphtheria-tetanus-acellular pertussis-inactivated poliovirus-Haemophilus influenzae b conjugate-hepatitis B vaccine (9) · Blood Specimen Collection (7) · MenACWY (7) · Saline Solution (7) · Chickenpox Vaccine (6) · Rotavirus Vaccines (6)
GlaxoSmithKline (73) · Sanofi Pasteur, a Sanofi Company (56) · Novartis Vaccines (51) · Pfizer (14) · CanSino Biologics Inc. (8) · Novartis (8) · Public Health England (5) · Sanofi (5) · Beijing Zhifei Lvzhu Biopharmaceutical Co., Ltd (4) · Sinovac Biotech Co., Ltd (4) · St George's, University of London (4) · Wyeth is now a wholly owned subsidiary of Pfizer (4) · Epicentre (3) · JN-International Medical Corporation (3) · University of Adelaide (3)
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Elizabeth Coates, PhD (3) · Alberto Yataco, MD (2) · Helen Marshall (2) · Lin Du (2)
PMID 35164991, PMID 31110098, PMID 35257644, PMID 33020485, PMID 17287313, PMID 21177912, PMID 23324563, PMID 29253560, PMID 29550195, PMID 30061029, PMID 33325757, PMID 36369456, PMID 16203934, PMID 16417952, PMID 16567982, PMID 17065257, PMID 17072120, PMID 17548138, PMID 19048025, PMID 19091990, PMID 19476428, PMID 19812260, PMID 19895922, PMID 19906895, PMID 19927040, PMID 20010312, PMID 20164251, PMID 20189491, PMID 20375851, PMID 20655261, PMID 20844462, PMID 20943209, PMID 21148522, PMID 21191076, PMID 21339701, PMID 21343698, PMID 21389149, PMID 22094635, PMID 22094636, PMID 22260988, PMID 22318278, PMID 22327493, PMID 22394992, PMID 22566415, PMID 22569484, PMID 22832260, PMID 22855388, PMID 23114372, PMID 23352429, PMID 23510357
2017 (9), 2016 (7), 2014 (6), 2008 (4), 2009 (4), 2019 (4), 2018 (2), 2005 (1), 2023 (1), U01IP000129 (1)