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| Withdrawn | 12 |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 1 to 25 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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