Clinical trials
Phase 3 Diphtheria trials
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
122 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2000 | 2 |
| 2001 | 1 |
| 2002 | 3 |
| 2003 | 6 |
| 2004 | 4 |
| 2005 | 9 |
| 2006 | 24 |
| 2007 | 13 |
| 2008 | 4 |
| 2009 | 6 |
| 2010 | 6 |
| 2011 | 11 |
| 2012 | 2 |
| 2013 | 6 |
| 2014 | 7 |
| 2015 | 2 |
| 2016 | 3 |
| 2017 | 1 |
| 2018 | 1 |
| 2019 | 2 |
| 2021 | 2 |
| 2022 | 1 |
| 2023 | 1 |
| 2025 | 1 |
| 2026 | 2 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Completed | 112 |
| Active, not recruiting | 4 |
| Unknown status | 2 |
| Withdrawn | 2 |
| Not yet recruiting | 1 |
| Terminated | 1 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| GlaxoSmithKline | 54 |
| Sanofi Pasteur, a Sanofi Company | 34 |
| Sanofi | 10 |
| Merck Sharp & Dohme LLC | 7 |
| Tanabe Pharma Corporation | 3 |
| Boryung Biopharma Co., Ltd. | 2 |
| CanSino Biologics Inc. | 2 |
| Crucell Holland BV | 2 |
| MCM Vaccines B.V. | 2 |
| Beijing Zhifei Lvzhu Biopharmaceutical Co., Ltd | 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 |
|---|---|
| Diphtheria | 122 |
| Tetanus | 118 |
| Whooping Cough | 74 |
| Poliomyelitis | 62 |
| Haemophilus Infections | 60 |
| Hepatitis B | 55 |
| Virus Diseases | 6 |
| Bacterial Infections | 4 |
| Influenza, Human | 4 |
| Meningococcal Infections | 3 |
Trials
Showing 26 to 50 of 122. Each trial links to its page on Pharma Observatory.
22 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.
No changes to these trials in the last 7 days.
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