Medical Information Only. Consult your healthcare provider before considering clinical trial enrollment.
Prevention of Zika Infection: early-phase trial registry
A small indexed set (2 trials) with no open enrollment listed right now.
Corpus placement: #7,188 of 28,707 conditions by registered trial count.
2 US clinical trials · none currently recruiting · #7,188 of 28,707 conditions by registered trial count
Prevention of Zika Infection: 2 US clinical trials tracked, none currently recruiting.
Prevention of Zika Infection is the subject of 2 registered US clinical trials on ClinicalTrials.gov, none currently recruiting. 0 are in Phase 3-4 (later-stage) and 2 in Phase 1-2 (earlier-stage). The most active sponsor is National Institute of Allergy and Infectious Diseases (NIAID), running 2 of these trials.
Enrollment posture brief
Registry condition prevention-of-zika-infection
OPEN 0 | RECR 0% | LATE 0 | EARLY 2 | RANK #7188 | SPON 2
Volume-matched condition peers
Nearest open-share peer: Accelerated Phase Chronic Myelogenous Leukemia (0% recruiting · 12 trials)
Prevention of Zika Infection has no open enrollment in this registry pull (2 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 Prevention of Zika 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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Prevention of Zika Infection is recruiting below its size-band peers.
0 of 2 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.
Indexed trials (enrollment closed)
2 total, page 1 of 1
Safety and Immunogenicity of a Zika Virus DNA Vaccine, VRC-ZKADNA085-00-VP, in Healthy Adults
National Institute of Allergy and Infectious Diseases (NIAID)
NCT02840487
VRC 320: A Phase I, Randomized Clinical Trial to Evaluate the Safety and Immunogenicity of a Zika Virus DNA Vaccine, VRC-ZKADNA090-00-VP, Administered Via Needle and Syringe or Needle-free Injector, PharmaJet, inHealthy Adults
National Institute of Allergy and Infectious Diseases (NIAID)
NCT02996461
Phase Distribution
| Phase | Trial count |
|---|---|
| Phase 1 | 2 |
Top Sponsors
Named interventions
Most-linked intervention names on Prevention of Zika Infection records (sponsor-reported on ClinicalTrials.gov). Counts are trial links, not unique products.
US sites by state
Facility locations filed on Prevention of Zika 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 Prevention of Zika Infection page
2 registered trials, 0 currently recruiting, is a starting point for a conversation, not a diagnosis or a recommendation.
- No Prevention of Zika Infection trials are currently recruiting in this registry; that can change as new trials post, or check the broader research index. Browse research indexes
- National Institute of Allergy and Infectious Diseases (NIAID) sponsors the most Prevention of Zika Infection trials on record, review their full trial history before evaluating a specific study. See National Institute of Allergy and Infectious Diseases (NIAID)'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 Prevention of Zika Infection condition card totals 2 registered trials; most-linked intervention VRC-ZKADNA085-00-VP; top US site state Maryland. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error.