Medical Information Only. Consult your healthcare provider before considering clinical trial enrollment.
Meningitis: early-phase trial registry
A small indexed set (8 trials) with no open enrollment listed right now.
Corpus placement: #2,176 of 28,707 conditions by registered trial count.
8 US clinical trials · none currently recruiting · #2,176 of 28,707 conditions by registered trial count
Meningitis: 8 US clinical trials tracked, none currently recruiting.
Meningitis is the subject of 8 registered US clinical trials on ClinicalTrials.gov, none currently recruiting. 3 are in Phase 3-4 (later-stage) and 5 in Phase 1-2 (earlier-stage). The most active sponsor is Sanofi Pasteur, a Sanofi Company, running 5 of these trials.
Enrollment posture brief
Registry condition meningitis
OPEN 0 | RECR 0% | LATE 3 | EARLY 5 | RANK #2176 | SPON 5
Volume-matched condition peers
Nearest open-share peer: Accelerated Phase Chronic Myelogenous Leukemia (0% recruiting · 12 trials)
Meningitis has no open enrollment in this registry pull (8 archived studies). Peers show how other volume-matched labels compare on open share. How peer matching works →
Key findings
What ClinicalTrials.gov does not surface for Meningitis 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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Meningitis is recruiting below its size-band peers.
0 of 8 indexed trials (0%) 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 Meningitis research.
Sanofi Pasteur, a Sanofi Company accounts for 5 of 8 trials (62.5%). 4 distinct sponsors appear on at least one study for this condition label.
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Typical Meningitis enrolment sits around 580 participants.
Median target enrolment is 580 among the 8 trials that report a genuine target (sentinel values excluded). 0 of those (0%) plan for fewer than 100 participants.
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Meningitis research is mostly interventional.
8 interventional and 0 observational studies make up this index (100% interventional). Study type is sponsor-reported on ClinicalTrials.gov.
Indexed trials (enrollment closed)
8 total, page 1 of 1
Study of Menactra® in Healthy Subjects at 9 Months and Concomitantly With Pentacel® at 15 to 18 Months of Age
Sanofi Pasteur, a Sanofi Company
NCT01659996
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
A Study of a Quadrivalent Meningococcal Tetanus Protein Conjugate Vaccine in Infants and Toddlers
Sanofi Pasteur, a Sanofi Company
NCT01049035
Safety of and Immune Response to a Meningitis Vaccine in HIV-Infected Children and Youth
National Institute of Allergy and Infectious Diseases (NIAID)
NCT00459316
Hypovitaminosis D in Neurocritical Patients
University of Utah
NCT02881957
Persistence of Antibodies in Children Aged 7 to 15 Years Who Previously Received One Dose of Menactra® or Menomune®
Sanofi Pasteur, a Sanofi Company
NCT00258856
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 | 4 |
| Phase 3 | 2 |
| Phase 4 | 1 |
Top Sponsors
Named interventions
Most-linked intervention names on Meningitis records (sponsor-reported on ClinicalTrials.gov). Counts are trial links, not unique products.
US sites by state
Facility locations filed on Meningitis 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 Meningitis page
8 registered trials, 0 currently recruiting, is a starting point for a conversation, not a diagnosis or a recommendation.
- No Meningitis trials are currently recruiting in this registry; that can change as new trials post, or check the broader research index. Browse research indexes
- Sanofi Pasteur, a Sanofi Company sponsors the most Meningitis 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 Meningitis condition card totals 8 registered trials; most-linked intervention Diphtheria and Tetanus Toxoids and Acellular Pertussis Adsorbed, Inactivated Poliovirus and Haemophilus b Conjugate; top US site state Massachusetts. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error.