Clinical trials
Diphtheria trials in the United States
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
46 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2001 | 1 |
| 2002 | 2 |
| 2003 | 1 |
| 2004 | 2 |
| 2005 | 5 |
| 2006 | 7 |
| 2007 | 3 |
| 2008 | 1 |
| 2009 | 4 |
| 2011 | 3 |
| 2012 | 3 |
| 2013 | 1 |
| 2014 | 1 |
| 2015 | 1 |
| 2018 | 2 |
| 2019 | 3 |
| 2020 | 2 |
| 2023 | 1 |
| 2024 | 2 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Completed | 44 |
| Recruiting | 1 |
| Unknown status | 1 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| Sanofi Pasteur, a Sanofi Company | 14 |
| GlaxoSmithKline | 12 |
| Sanofi | 6 |
| National Institute of Allergy and Infectious Diseases (NIAID) | 5 |
| ABO Holdings, Inc. | 1 |
| Atlanta VA Medical Center | 1 |
| Children's Mercy Hospital Kansas City | 1 |
| Institute of Arthritis Research | 1 |
| MassBiologics | 1 |
| Pfizer | 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 | 46 |
| Tetanus | 43 |
| Whooping Cough | 29 |
| Poliomyelitis | 10 |
| Haemophilus Infections | 7 |
| Hepatitis B | 3 |
| Influenza, Human | 3 |
| Meningitis | 2 |
| Meningitis, Meningococcal | 2 |
| Meningococcal Infections | 2 |
Trials
Showing 1 to 25 of 46. 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.