Clinical trials
Completed COVID-19 trials
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
4,211 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2009 | 1 |
| 2014 | 3 |
| 2015 | 3 |
| 2016 | 6 |
| 2017 | 6 |
| 2018 | 9 |
| 2019 | 31 |
| 2020 | 2,140 |
| 2021 | 1,179 |
| 2022 | 513 |
| 2023 | 203 |
| 2024 | 83 |
| 2025 | 32 |
| 2026 | 2 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Completed | 4,211 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| Assistance Publique - Hôpitaux de Paris | 53 |
| Pfizer | 47 |
| National Institute of Allergy and Infectious Diseases (NIAID) | 45 |
| AstraZeneca | 33 |
| University Hospital, Montpellier | 30 |
| BioNTech SE | 26 |
| ModernaTX, Inc. | 26 |
| University of Pennsylvania | 25 |
| Duke University | 21 |
| University Hospital, Toulouse | 21 |
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 |
|---|---|
| COVID-19 | 4,211 |
| Coronavirus Infections | 470 |
| Severe Acute Respiratory Syndrome | 162 |
| Anxiety Disorders | 118 |
| Post-Acute COVID-19 Syndrome | 102 |
| Respiratory Distress Syndrome | 101 |
| Pneumonia | 90 |
| Virus Diseases | 85 |
| Respiratory Insufficiency | 62 |
| Influenza, Human | 52 |
Trials
Showing 1 to 25 of 4,211. Each trial links to its page on Pharma Observatory.
4,111 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.