Clinical trials
Respiratory Tract Diseases trials in Bulgaria
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
18 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2008 | 1 |
| 2013 | 2 |
| 2014 | 4 |
| 2015 | 1 |
| 2016 | 1 |
| 2018 | 1 |
| 2019 | 2 |
| 2022 | 1 |
| 2024 | 2 |
| 2025 | 3 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Completed | 10 |
| Active, not recruiting | 2 |
| Recruiting | 2 |
| Terminated | 2 |
| Enrolling by invitation | 1 |
| Withdrawn | 1 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| AstraZeneca | 7 |
| Pfizer | 3 |
| Novartis Pharmaceuticals | 2 |
| United Therapeutics | 2 |
| Upstream Bio Inc. | 2 |
| Insmed Incorporated | 1 |
| Windward Bio | 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 |
|---|---|
| Lung Diseases | 18 |
| Respiratory Tract Diseases | 18 |
| Asthma | 11 |
| Bronchial Diseases | 10 |
| Lung Diseases, Obstructive | 9 |
| Respiratory Tract Infections | 3 |
| COVID-19 | 2 |
| Cardiovascular Diseases | 2 |
| Connective Tissue Diseases | 2 |
| Coronaviridae Infections | 2 |
Trials
Showing 1 to 18 of 18. 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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