Clinical trials
Phase 4 Drug-Related Side Effects and Adverse Reactions trials
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
34 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2008 | 1 |
| 2010 | 1 |
| 2011 | 4 |
| 2012 | 2 |
| 2013 | 3 |
| 2014 | 2 |
| 2015 | 1 |
| 2016 | 3 |
| 2017 | 2 |
| 2018 | 3 |
| 2019 | 1 |
| 2021 | 4 |
| 2022 | 3 |
| 2023 | 1 |
| 2025 | 1 |
| 2026 | 1 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Completed | 22 |
| Unknown status | 7 |
| Recruiting | 2 |
| Terminated | 2 |
| Withdrawn | 1 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| Duke University | 3 |
| University College Cork | 2 |
| Assistance Publique - Hôpitaux de Paris | 1 |
| Beijing Center for Disease Control and Prevention | 1 |
| Beijing Shijitan Hospital, Capital Medical University | 1 |
| Dar El Oyoun Hospital | 1 |
| Denver Health and Hospital Authority | 1 |
| Eduardo Barbosa Coelho | 1 |
| Emory University | 1 |
| Erasmus Medical Center | 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 |
|---|---|
| Drug-Related Side Effects and Adverse Reactions | 34 |
| Influenza, Human | 3 |
| Injection Site Reaction | 3 |
| Neurotoxicity Syndromes | 2 |
| Pain | 2 |
| Postoperative Pain | 2 |
| Acquired Immunodeficiency Syndrome | 1 |
| Acute Pain | 1 |
| Agnosia | 1 |
| Angioedemas, Hereditary | 1 |
Trials
Showing 76 to 34 of 34. Each trial links to its page on Pharma Observatory.
No trials match these filters.
Try a different keyword, or clear a filter.
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.