Clinical trials
Phase 2 Influenza, Human trials
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
344 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 | 27 |
| 2007 | 32 |
| 2008 | 17 |
| 2009 | 59 |
| 2010 | 17 |
| 2011 | 10 |
| 2012 | 9 |
| 2013 | 17 |
| 2014 | 8 |
| 2015 | 10 |
| 2016 | 14 |
| 2017 | 9 |
| 2018 | 13 |
| 2019 | 9 |
| 2020 | 5 |
| 2021 | 12 |
| 2022 | 12 |
| 2023 | 9 |
| 2024 | 9 |
| 2025 | 10 |
| 2026 | 8 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Completed | 289 |
| Terminated | 15 |
| Withdrawn | 12 |
| Recruiting | 11 |
| Unknown status | 8 |
| Not yet recruiting | 5 |
| Active, not recruiting | 4 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| GlaxoSmithKline | 53 |
| National Institute of Allergy and Infectious Diseases (NIAID) | 46 |
| Sanofi Pasteur, a Sanofi Company | 29 |
| Novartis Vaccines | 25 |
| Seqirus | 12 |
| Novartis | 11 |
| MedImmune LLC | 10 |
| Novavax | 6 |
| Osivax | 6 |
| Medicago | 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 | 344 |
| Orthomyxoviridae Infections | 28 |
| Influenza in Birds | 23 |
| Virus Diseases | 17 |
| Respiratory Tract Infections | 15 |
| Infections | 12 |
| Respiratory Tract Diseases | 10 |
| COVID-19 | 9 |
| RNA Virus Infections | 7 |
| Communicable Diseases | 4 |
Trials
Showing 26 to 50 of 344. Each trial links to its page on Pharma Observatory.
244 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.
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