Clinical trials
Observational Respiratory Tract Infections trials in the United States
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
48 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2004 | 2 |
| 2005 | 1 |
| 2006 | 2 |
| 2007 | 1 |
| 2008 | 2 |
| 2009 | 1 |
| 2010 | 2 |
| 2011 | 1 |
| 2012 | 1 |
| 2013 | 1 |
| 2014 | 2 |
| 2015 | 3 |
| 2016 | 3 |
| 2017 | 2 |
| 2018 | 2 |
| 2019 | 4 |
| 2020 | 6 |
| 2021 | 3 |
| 2022 | 1 |
| 2023 | 2 |
| 2025 | 2 |
| 2026 | 4 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Completed | 37 |
| Recruiting | 4 |
| Active, not recruiting | 2 |
| Terminated | 2 |
| Unknown status | 2 |
| Withdrawn | 1 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| National Institute of Allergy and Infectious Diseases (NIAID) | 5 |
| BioFire Diagnostics, LLC | 3 |
| Duke University | 2 |
| Inflammatix | 2 |
| University of Wisconsin, Madison | 2 |
| Aardvark Medical Company | 1 |
| Adaptive Biotechnologies | 1 |
| Becton, Dickinson and Company | 1 |
| BioFire Defense LLC | 1 |
| Boston Children's Hospital | 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 |
|---|---|
| Respiratory Tract Infections | 48 |
| Influenza, Human | 10 |
| Pneumonia | 9 |
| COVID-19 | 8 |
| Coronavirus Infections | 5 |
| Bronchitis | 4 |
| Virus Diseases | 4 |
| Asthma | 3 |
| Bronchiolitis | 3 |
| Common Cold | 3 |
Trials
Showing 1 to 25 of 48. 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.