Clinical trials
Completed Vitamin D Deficiency trials in the United States
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
184 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2001 | 1 |
| 2004 | 2 |
| 2005 | 6 |
| 2006 | 9 |
| 2007 | 11 |
| 2008 | 14 |
| 2009 | 11 |
| 2010 | 28 |
| 2011 | 26 |
| 2012 | 17 |
| 2013 | 9 |
| 2014 | 8 |
| 2015 | 7 |
| 2016 | 9 |
| 2017 | 3 |
| 2018 | 5 |
| 2019 | 3 |
| 2020 | 5 |
| 2021 | 3 |
| 2022 | 3 |
| 2023 | 2 |
| 2024 | 1 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Completed | 184 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| University of Wisconsin, Madison | 11 |
| Boston University | 8 |
| Creighton University | 8 |
| Massachusetts General Hospital | 8 |
| Medical University of South Carolina | 5 |
| University of Alabama at Birmingham | 5 |
| Mayo Clinic | 4 |
| Tufts University | 4 |
| University of Colorado, Denver | 4 |
| University of Nebraska | 4 |
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 | 184 |
| Obesity | 21 |
| Insulin Resistance | 17 |
| Renal Insufficiency, Chronic | 10 |
| Cardiovascular Diseases | 7 |
| Hyperparathyroidism | 7 |
| Diabetes Mellitus | 6 |
| Diabetes Mellitus, Type 2 | 6 |
| Hyperparathyroidism, Secondary | 6 |
| Inflammation | 5 |
Trials
Showing 1 to 25 of 184. Each trial links to its page on Pharma Observatory.
84 more trials match. See them 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.
Go deeper on Pharma Observatory
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