Clinical trials
Completed Phase 2 Influenza, Human trials
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
289 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2000 | 1 |
| 2001 | 4 |
| 2002 | 1 |
| 2003 | 2 |
| 2004 | 3 |
| 2005 | 12 |
| 2006 | 25 |
| 2007 | 32 |
| 2008 | 17 |
| 2009 | 55 |
| 2010 | 12 |
| 2011 | 8 |
| 2012 | 8 |
| 2013 | 15 |
| 2014 | 7 |
| 2015 | 9 |
| 2016 | 14 |
| 2017 | 6 |
| 2018 | 11 |
| 2019 | 6 |
| 2020 | 4 |
| 2021 | 9 |
| 2022 | 10 |
| 2023 | 5 |
| 2024 | 6 |
| 2025 | 4 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Completed | 289 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| GlaxoSmithKline | 48 |
| National Institute of Allergy and Infectious Diseases (NIAID) | 39 |
| Sanofi Pasteur, a Sanofi Company | 29 |
| Novartis Vaccines | 25 |
| Seqirus | 12 |
| Novartis | 10 |
| MedImmune LLC | 9 |
| Osivax | 6 |
| Medicago | 5 |
| Novavax | 5 |
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 |
|---|---|
| Influenza, Human | 289 |
| Orthomyxoviridae Infections | 26 |
| Influenza in Birds | 21 |
| Respiratory Tract Infections | 14 |
| Virus Diseases | 14 |
| Infections | 9 |
| Respiratory Tract Diseases | 8 |
| RNA Virus Infections | 7 |
| COVID-19 | 6 |
| Common Cold | 3 |
Trials
Showing 1 to 25 of 289. Each trial links to its page on Pharma Observatory.
189 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.
Go deeper on Pharma Observatory
Pharma Observatory connects clinical trials, sponsors, sites and investigators in one searchable platform.