Medical Information Only. Consult your healthcare provider before considering clinical trial enrollment.
Vitamin Deficiency clinical trials
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
Vitamin Deficiency: 2 US clinical trials tracked, none currently recruiting.
Vitamin Deficiency is the subject of 2 registered US clinical trials on ClinicalTrials.gov, none currently recruiting. The most active sponsor is Optimal Health Research, running 1 of these trials.
Enrollment posture brief
Registry condition vitamin-deficiency
OPEN 0 | RECR 0% | LATE 0 | EARLY 0 | RANK #7188 | SPON 1
Volume-matched condition peers
Nearest open-share peer: Accelerated Phase Chronic Myelogenous Leukemia (0% recruiting · 12 trials)
Vitamin Deficiency 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 Vitamin Deficiency 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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Vitamin Deficiency 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
Effectiveness of a Nutraceutical in Raising Circulating Serum Vitamin, Mineral and Amino Acid Levels in Patients.
Optimal Health Research
NCT04054505
Role of Centrum® Silver® in Improving Micronutrient Status in Older Men
Oregon State University
NCT03004807
Phase Distribution
Phase data not available
Top Sponsors
Named interventions
Most-linked intervention names on Vitamin Deficiency records (sponsor-reported on ClinicalTrials.gov). Counts are trial links, not unique products.
US sites by state
Facility locations filed on Vitamin Deficiency 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 Vitamin Deficiency page
2 registered trials, 0 currently recruiting, is a starting point for a conversation, not a diagnosis or a recommendation.
- No Vitamin Deficiency trials are currently recruiting in this registry; that can change as new trials post, or check the broader research index. Browse research indexes
- Optimal Health Research sponsors the most Vitamin Deficiency trials on record, review their full trial history before evaluating a specific study. See Optimal Health Research'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 Vitamin Deficiency condition card totals 2 registered trials; most-linked intervention Centrum Silver Mens' Formula; top US site state Utah. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error.