Medical Information Only. Consult your healthcare provider before considering clinical trial enrollment.
Vaccine Refusal clinical trials
2 of 6 indexed Vaccine Refusal trials are currently recruiting.
Corpus placement: #2,866 of 28,707 conditions by registered trial count.
6 US clinical trials · 2 currently recruiting · #2,866 of 28,707 conditions by registered trial count
Vaccine Refusal: 6 US clinical trials tracked, 2 recruiting.
Vaccine Refusal is the subject of 6 registered US clinical trials on ClinicalTrials.gov, 2 of them currently open to new participants. The most active sponsor is Corewell Health East, running 1 of these trials.
Enrollment posture brief
Registry condition vaccine-refusal
OPEN 2 | RECR 33% | LATE 0 | EARLY 0 | RANK #2866 | SPON 1
Volume-matched condition peers
Nearest open-share peer: Adherence, Treatment (33% recruiting · 6 trials)
Vaccine Refusal lists 2 open slots (33% of 6 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 Vaccine Refusal 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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Vaccine Refusal is recruiting below its size-band peers.
2 of 6 indexed trials (33.3%) 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 Vaccine Refusal research.
Corewell Health East accounts for 1 of 6 trials (16.7%). 6 distinct sponsors appear on at least one study for this condition label.
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Typical Vaccine Refusal enrolment sits around 1,000 participants.
Median target enrolment is 1,000 among the 6 trials that report a genuine target (sentinel values excluded). 1 of those (16.7%) plan for fewer than 100 participants.
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Vaccine Refusal splits between interventional and observational designs.
4 interventional and 2 observational studies make up this index (66.7% interventional). Study type is sponsor-reported on ClinicalTrials.gov.
Open and recent trials
6 total, page 1 of 1
Improving Vaccine Acceptance Through EHR Integrated Patient- and Provider-Facing Decision Support
Johns Hopkins Bloomberg School of Public Health
NCT06482450
Vaccine Confidence Study Among Historically Marginalized Racial and Ethnic Groups
Boston Medical Center
NCT06639386
Use of Construal Level Theory to Inform Messaging to Increase Vaccination Against COVID-19
Brigham and Women's Hospital
NCT04871776
Vaccine Hesitancy: A Survey of Pediatric Clinicians
Children's Mercy Hospital Kansas City
NCT01098825
Testing the Persuasiveness of Pro-inoculation Arguments
University of Pennsylvania
NCT05804825
Improving Vaccine Counseling Skills Among Residents Using Educational Modules and Standardized Patient Encounters
Corewell Health East
NCT06074237
Phase Distribution
Phase data not available
Top Sponsors
Named interventions
Most-linked intervention names on Vaccine Refusal records (sponsor-reported on ClinicalTrials.gov). Counts are trial links, not unique products.
US sites by state
Facility locations filed on Vaccine Refusal 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 Vaccine Refusal page
6 registered trials, 2 currently recruiting, is a starting point for a conversation, not a diagnosis or a recommendation.
- 2 Vaccine Refusal trials are currently recruiting, check eligibility criteria before contacting a site. Browse recruiting trials
- Corewell Health East sponsors the most Vaccine Refusal trials on record, review their full trial history before evaluating a specific study. See Corewell Health East'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 Vaccine Refusal condition card totals 6 registered trials; most-linked intervention Simple forewarning message; top US site state Massachusetts. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error.