Medical Information Only. Consult your healthcare provider before considering clinical trial enrollment.
Anthrax: early-phase trial registry
1 of 7 indexed Anthrax trials are currently recruiting, with more weight in Phase 1-2.
Corpus placement: #2,497 of 28,707 conditions by registered trial count.
7 US clinical trials · 1 currently recruiting · #2,497 of 28,707 conditions by registered trial count
Anthrax: 7 US clinical trials tracked, 1 recruiting.
Anthrax is the subject of 7 registered US clinical trials on ClinicalTrials.gov, 1 of them currently open to new participants. 1 are in Phase 3-4 (later-stage) and 4 in Phase 1-2 (earlier-stage). The most active sponsor is Emergent BioSolutions, running 2 of these trials.
Enrollment posture brief
Registry condition anthrax
OPEN 1 | RECR 14% | LATE 1 | EARLY 4 | RANK #2497 | SPON 2
Volume-matched condition peers
Nearest open-share peer: Adverse Drug Events (14% recruiting · 7 trials)
Anthrax lists 1 open slots (14% of 7 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 Anthrax 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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Anthrax is recruiting below its size-band peers.
1 of 7 indexed trials (14.3%) 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 Anthrax research.
Emergent BioSolutions accounts for 2 of 7 trials (28.6%). 6 distinct sponsors appear on at least one study for this condition label.
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Typical Anthrax enrolment sits around 168 participants.
Median target enrolment is 168 among the 7 trials that report a genuine target (sentinel values excluded). 3 of those (42.9%) plan for fewer than 100 participants.
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Anthrax research is mostly interventional.
5 interventional and 2 observational studies make up this index (71.4% interventional). Study type is sponsor-reported on ClinicalTrials.gov.
Open and recent trials
7 total, page 1 of 1
Natural History of Anthrax: a Study of Primary Infected, Recovered, and Exposed Individuals (SPoRE); and Evaluation of AVA-Vaccinated Recipients
National Institute of Allergy and Infectious Diseases (NIAID)
NCT00050310
Anthrax AV7909 Boost Evaluation Study
Biomedical Advanced Research and Development Authority
NCT05997264
VELOCITY: An Anthrax Vaccine Clinical Study
Emergent BioSolutions
NCT03877926
A Phase 2 Safety and Immunogenicity Study for an Anthrax Vaccine Using 3 Schedules and Two Dose Levels
Emergent BioSolutions
NCT01770743
Febrile Whole Blood Specimen Collection and Testing
MRI Global
NCT03498027
Anthrax Vaccine Clinical Trials
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
NCT00114621
PA83-FhCMB Plant-Derived Recombinant Protective Antigen (rPA) Anthrax Vaccine
Fraunhofer, Center for Molecular Biotechnology
NCT02239172
Phase Distribution
| Phase | Trial count |
|---|---|
| Phase 1 | 2 |
| Phase 2 | 2 |
| Phase 3 | 1 |
Top Sponsors
Named interventions
Most-linked intervention names on Anthrax records (sponsor-reported on ClinicalTrials.gov). Counts are trial links, not unique products.
US sites by state
Facility locations filed on Anthrax 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 Anthrax page
7 registered trials, 1 currently recruiting, is a starting point for a conversation, not a diagnosis or a recommendation.
- 1 Anthrax trials are currently recruiting, check eligibility criteria before contacting a site. Browse recruiting trials
- Emergent BioSolutions sponsors the most Anthrax trials on record, review their full trial history before evaluating a specific study. See Emergent BioSolutions'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 Anthrax condition card totals 7 registered trials; most-linked intervention BioThrax; top US site state Maryland. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error.