Clinical trials
Observational Vitamin D Deficiency trials in the United States
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
35 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2006 | 2 |
| 2007 | 2 |
| 2008 | 4 |
| 2009 | 3 |
| 2010 | 5 |
| 2011 | 5 |
| 2012 | 1 |
| 2014 | 2 |
| 2015 | 3 |
| 2017 | 1 |
| 2019 | 1 |
| 2020 | 2 |
| 2021 | 1 |
| 2024 | 1 |
| 2026 | 1 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Completed | 23 |
| Terminated | 3 |
| Withdrawn | 3 |
| Recruiting | 2 |
| Unknown status | 2 |
| Enrolling by invitation | 1 |
| Active, not recruiting | 1 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| Creighton University | 3 |
| Avera McKennan Hospital & University Health Center | 2 |
| University of Alabama at Birmingham | 2 |
| American Laboratory Products Company | 1 |
| Boston Children's Hospital | 1 |
| Boston University | 1 |
| Children's Hospital Medical Center, Cincinnati | 1 |
| Drexel University | 1 |
| Fujirebio Diagnostics, Inc. | 1 |
| Hospital for Special Surgery, New York | 1 |
Top conditions
MeSH conditions the trials were registered with, not their broader categories. A condition with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| Vitamin D Deficiency | 35 |
| Insulin Resistance | 5 |
| Obesity | 5 |
| Hyperparathyroidism | 3 |
| Anemia | 2 |
| Cardiovascular Diseases | 2 |
| Inflammation | 2 |
| Osteoporosis | 2 |
| Renal Insufficiency, Chronic | 2 |
| Asthma | 1 |
Trials
Showing 1 to 25 of 35. Each trial links to its page on Pharma Observatory.
Recently changed trials
Changes observed in the last 7 days, newest first, site-count changes left out. Source: ClinicalTrials.gov.
No changes to these trials in the last 7 days.
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