Clinical trials
Phase 2 Vitamin D Deficiency trials
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
53 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2005 | 1 |
| 2006 | 1 |
| 2007 | 1 |
| 2008 | 1 |
| 2009 | 4 |
| 2010 | 3 |
| 2011 | 8 |
| 2012 | 4 |
| 2013 | 3 |
| 2014 | 2 |
| 2015 | 1 |
| 2016 | 5 |
| 2017 | 4 |
| 2018 | 5 |
| 2019 | 2 |
| 2020 | 2 |
| 2021 | 2 |
| 2022 | 1 |
| 2023 | 2 |
| 2025 | 1 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Completed | 36 |
| Unknown status | 7 |
| Recruiting | 3 |
| Terminated | 3 |
| Withdrawn | 3 |
| Active, not recruiting | 1 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| Children's Hospital of Eastern Ontario | 2 |
| National Institute of Allergy and Infectious Diseases (NIAID) | 2 |
| Regional Hospital Holstebro | 2 |
| Texas Tech University Health Sciences Center | 2 |
| Aga Khan University | 1 |
| Al-Balqa Applied University | 1 |
| Alborz Medical University | 1 |
| Allina Health System | 1 |
| Ascension Health | 1 |
| Assiut University | 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 | 53 |
| Insulin Resistance | 5 |
| Respiratory Tract Infections | 4 |
| Acquired Immunodeficiency Syndrome | 3 |
| Diabetes Mellitus | 3 |
| Hypertension | 3 |
| Obesity | 3 |
| Acute Chest Syndrome | 2 |
| Anemia, Sickle Cell | 2 |
| Asthma | 2 |
Trials
Showing 76 to 53 of 53. Each trial links to its page on Pharma Observatory.
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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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