Medical Information Only. Consult your healthcare provider before considering clinical trial enrollment.
Meningococcal Infections: full-pipeline trial registry
1 of 5 indexed Meningococcal Infections trials are currently recruiting.
Corpus placement: #3,391 of 28,707 conditions by registered trial count.
5 US clinical trials · 1 currently recruiting · #3,391 of 28,707 conditions by registered trial count
Meningococcal Infections: 5 US clinical trials tracked, 1 recruiting.
Meningococcal Infections is the subject of 5 registered US clinical trials on ClinicalTrials.gov, 1 of them currently open to new participants. 2 are in Phase 3-4 (later-stage) and 3 in Phase 1-2 (earlier-stage). The most active sponsor is Sanofi Pasteur, a Sanofi Company, running 3 of these trials.
Enrollment posture brief
Registry condition meningococcal-infections
OPEN 1 | RECR 20% | LATE 2 | EARLY 3 | RANK #3391 | SPON 3
Volume-matched condition peers
Nearest open-share peer: Accelerated Phase Chronic Myelogenous Leukemia, BCR-ABL1 Positive (20% recruiting · 10 trials)
Meningococcal Infections lists 1 open slots (20% of 5 indexed trials). Peers are matched on registered volume, not therapeutic-area browse lists. How peer matching works →
Key findings
What ClinicalTrials.gov does not surface for Meningococcal Infections on its own pages , computed from the registry mirror as of 2026-08-08. Each line carries its own denominator so it can be quoted as it stands.
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Meningococcal Infections is recruiting below its size-band peers.
1 of 5 indexed trials (20%) are open to enrollment, against a 46.5% average across 27,806 conditions with fewer than 20 trials. The peer set uses the same ClinicalTrials.gov-derived counts as this page.
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One sponsor concentrates Meningococcal Infections research.
Sanofi Pasteur, a Sanofi Company accounts for 3 of 5 trials (60%). 3 distinct sponsors appear on at least one study for this condition label.
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Typical Meningococcal Infections enrolment sits around 810 participants.
Median target enrolment is 810 among the 5 trials that report a genuine target (sentinel values excluded). 0 of those (0%) plan for fewer than 100 participants.
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Meningococcal Infections research is mostly interventional.
5 interventional and 0 observational studies make up this index (100% interventional). Study type is sponsor-reported on ClinicalTrials.gov.
Open and recent trials
5 total, page 1 of 1
Azithromycin for Meningococcal Carriage
Emory University
NCT06618534
Study of an Investigational Quadrivalent Meningococcal Conjugate Vaccine Administered in Children Aged 2 to 9 Years
Sanofi Pasteur, a Sanofi Company
NCT03077438
Immunogenicity and Safety of a Booster Dose of an Investigational Quadrivalent Meningococcal Conjugate Vaccine
Sanofi Pasteur, a Sanofi Company
NCT02752906
Exploratory Trial to Evaluate the Safety and Immunogenicity of Menactra® and Menomune® Vaccines in Subjects ≥ 56 Years
Sanofi Pasteur, a Sanofi Company
NCT00874549
Antibody Persistence and Response to Re-vaccination With Either Menactra® or Menomune® 3 Years After Initial Vaccination
Sanofi
NCT01239043
Phase Distribution
| Phase | Trial count |
|---|---|
| Phase 1 | 1 |
| Phase 2 | 2 |
| Phase 3 | 2 |
Top Sponsors
Named interventions
Most-linked intervention names on Meningococcal Infections records (sponsor-reported on ClinicalTrials.gov). Counts are trial links, not unique products.
US sites by state
Facility locations filed on Meningococcal Infections trials. A trial with sites in several states counts in each.
Source: ClinicalTrials.gov, National Library of Medicine. Data is informational only.
Related
What to do with this Meningococcal Infections page
5 registered trials, 1 currently recruiting, is a starting point for a conversation, not a diagnosis or a recommendation.
- 1 Meningococcal Infections trials are currently recruiting, check eligibility criteria before contacting a site. Browse recruiting trials
- Sanofi Pasteur, a Sanofi Company sponsors the most Meningococcal Infections trials on record, review their full trial history before evaluating a specific study. See Sanofi Pasteur, a Sanofi Company's trials
- Bring the specific trial ID (NCT number) to your own doctor before enrolling, this page is a directory, not medical guidance. Read the trial-finding guide
Trial and recruiting counts reflect ClinicalTrials.gov registry status as of the data vintage above; individual trial eligibility and enrollment status can change.
Every figure on PlainTrial is rendered directly from the ClinicalTrials.gov registry, no number is typed in by an editor. This Meningococcal Infections condition card totals 5 registered trials; most-linked intervention Menactra®: Meningococcal (A, C, Y and W 135) Polysaccharide Diphtheria Toxoid Conjugate; top US site state Kentucky. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error.