Medical Information Only. Consult your healthcare provider before considering clinical trial enrollment.
Immunization; Infection: early-phase trial registry
4 of 5 indexed Immunization; Infection trials are currently recruiting, with more weight in Phase 1-2.
Corpus placement: #3,391 of 28,707 conditions by registered trial count.
5 US clinical trials · 4 currently recruiting · #3,391 of 28,707 conditions by registered trial count
Immunization; Infection: 5 US clinical trials tracked, 4 recruiting.
Immunization; Infection is the subject of 5 registered US clinical trials on ClinicalTrials.gov, 4 of them currently open to new participants. 0 are in Phase 3-4 (later-stage) and 4 in Phase 1-2 (earlier-stage). The most active sponsor is Vanderbilt University Medical Center, running 2 of these trials.
Enrollment posture brief
Registry condition immunization-infection
OPEN 4 | RECR 80% | LATE 0 | EARLY 4 | RANK #3391 | SPON 2
Volume-matched condition peers
Nearest open-share peer: Acute Leukemia of Ambiguous Lineage (80% recruiting · 10 trials)
Immunization; Infection lists 4 open slots (80% 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 Immunization; Infection 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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Immunization; Infection is recruiting above its size-band peers.
4 of 5 indexed trials (80%) 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 Immunization; Infection research.
Vanderbilt University Medical Center accounts for 2 of 5 trials (40%). 4 distinct sponsors appear on at least one study for this condition label.
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Typical Immunization; Infection enrolment sits around 270 participants.
Median target enrolment is 270 among the 5 trials that report a genuine target (sentinel values excluded). 1 of those (20%) plan for fewer than 100 participants.
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Immunization; Infection research is mostly interventional.
4 interventional and 1 observational studies make up this index (80% interventional). Study type is sponsor-reported on ClinicalTrials.gov.
Open and recent trials
5 total, page 1 of 1
High vs.Standard Dose Influenza Vaccine in Pediatric Solid Organ Transplant (SOT) Recipients
National Institute of Allergy and Infectious Diseases (NIAID)
NCT05947071
High vs. Standard Dose Influenza Vaccine in Lung Allograft Recipients
Vanderbilt University Medical Center
NCT05215327
COVID-19 Health Adjustments in Nutrition, General Wellness, and Exercise
Indiana University
NCT07128095
Immunogenicity of Yellow Fever Vaccine 17D in Adults With Prior 17D Vaccination
Oregon Health and Science University
NCT05859490
High vs. Standard Dose Influenza Vaccine in Adult SOT Recipients
Vanderbilt University Medical Center
NCT04613206
Phase Distribution
| Phase | Trial count |
|---|---|
| Phase 1 | 1 |
| Phase 2 | 3 |
Top Sponsors
Named interventions
Most-linked intervention names on Immunization; Infection records (sponsor-reported on ClinicalTrials.gov). Counts are trial links, not unique products.
US sites by state
Facility locations filed on Immunization; Infection 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 Immunization; Infection page
5 registered trials, 4 currently recruiting, is a starting point for a conversation, not a diagnosis or a recommendation.
- 4 Immunization; Infection trials are currently recruiting, check eligibility criteria before contacting a site. Browse recruiting trials
- Vanderbilt University Medical Center sponsors the most Immunization; Infection trials on record, review their full trial history before evaluating a specific study. See Vanderbilt University Medical Center'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 Immunization; Infection condition card totals 5 registered trials; most-linked intervention High Dose Quadrivalent Inactivated Influenza Vaccine; top US site state Tennessee. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error.