Medical Information Only. Consult your healthcare provider before considering clinical trial enrollment.
Hypovitaminosis D clinical trials
1 of 4 indexed Hypovitaminosis D trials are currently recruiting.
Corpus placement: #4,115 of 28,707 conditions by registered trial count.
4 US clinical trials · 1 currently recruiting · #4,115 of 28,707 conditions by registered trial count
Hypovitaminosis D: 4 US clinical trials tracked, 1 recruiting.
Hypovitaminosis D is the subject of 4 registered US clinical trials on ClinicalTrials.gov, 1 of them currently open to new participants. The most active sponsor is Madigan Army Medical Center, running 2 of these trials.
Enrollment posture brief
Registry condition hypovitaminosis-d
OPEN 1 | RECR 25% | LATE 0 | EARLY 0 | RANK #4115 | SPON 2
Volume-matched condition peers
Nearest open-share peer: Abdominal Cancer (25% recruiting · 8 trials)
Hypovitaminosis D lists 1 open slots (25% of 4 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 Hypovitaminosis D 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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Hypovitaminosis D is recruiting below its size-band peers.
1 of 4 indexed trials (25%) 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.
Open and recent trials
4 total, page 1 of 1
Evaluating Response to Vitamin D3 and K2 Supplementation in Healthcare Personnel
Madigan Army Medical Center
NCT07199829
Comparing a Novel Phototherapy Kiosk to Oral Vitamin D Supplementation
Madigan Army Medical Center
NCT04556136
Treatment of Hypovitaminosis D in Rheumatoid Arthritis
University of Wisconsin, Madison
NCT00423358
Correction of Vitamin D Inadequacy in Nursing Home Residents
University of Wisconsin, Madison
NCT00204906
Phase Distribution
Phase data not available
Top Sponsors
Named interventions
Most-linked intervention names on Hypovitaminosis D records (sponsor-reported on ClinicalTrials.gov). Counts are trial links, not unique products.
US sites by state
Facility locations filed on Hypovitaminosis D 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 Hypovitaminosis D page
4 registered trials, 1 currently recruiting, is a starting point for a conversation, not a diagnosis or a recommendation.
- 1 Hypovitaminosis D trials are currently recruiting, check eligibility criteria before contacting a site. Browse recruiting trials
- Madigan Army Medical Center sponsors the most Hypovitaminosis D trials on record, review their full trial history before evaluating a specific study. See Madigan Army 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 Hypovitaminosis D condition card totals 4 registered trials; most-linked intervention D3 Oral supplement; top US site state Wisconsin. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error.