Clinical trials
Completed Phase 1 Vitamin D Deficiency trials
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
26 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2007 | 1 |
| 2008 | 2 |
| 2009 | 1 |
| 2010 | 4 |
| 2011 | 2 |
| 2012 | 3 |
| 2013 | 2 |
| 2014 | 2 |
| 2016 | 1 |
| 2017 | 1 |
| 2018 | 1 |
| 2019 | 2 |
| 2020 | 3 |
| 2025 | 1 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Completed | 26 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| Chinese Academy of Sciences | 2 |
| Allegheny Singer Research Institute (also known as Allegheny Health Network Research Institute) | 1 |
| Arizona State University | 1 |
| Boston University | 1 |
| CONRAD | 1 |
| Endocrinology Research Centre, Moscow | 1 |
| Hamad Medical Corporation | 1 |
| Indian Council of Medical Research | 1 |
| Johns Hopkins University | 1 |
| Kaiser Permanente | 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 | 26 |
| Obesity | 3 |
| Hyperparathyroidism, Primary | 2 |
| Insulin Resistance | 2 |
| Acromegaly | 1 |
| Alzheimer Disease | 1 |
| Asthma | 1 |
| COVID-19 | 1 |
| Cardiovascular Diseases | 1 |
| Diabetes Mellitus, Type 1 | 1 |
Trials
Showing 1 to 25 of 26. 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.
Go deeper on Pharma Observatory
Pharma Observatory connects clinical trials, sponsors, sites and investigators in one searchable platform.