Clinical trials
Observational Postoperative Complications trials
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
540 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2004 | 1 |
| 2005 | 2 |
| 2006 | 3 |
| 2007 | 9 |
| 2008 | 5 |
| 2009 | 6 |
| 2010 | 7 |
| 2011 | 15 |
| 2012 | 3 |
| 2013 | 11 |
| 2014 | 17 |
| 2015 | 19 |
| 2016 | 32 |
| 2017 | 25 |
| 2018 | 39 |
| 2019 | 44 |
| 2020 | 35 |
| 2021 | 43 |
| 2022 | 38 |
| 2023 | 46 |
| 2024 | 36 |
| 2025 | 46 |
| 2026 | 55 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Completed | 280 |
| Unknown status | 108 |
| Recruiting | 73 |
| Not yet recruiting | 33 |
| Active, not recruiting | 20 |
| Terminated | 10 |
| Withdrawn | 10 |
| Enrolling by invitation | 5 |
| Suspended | 1 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| Dr Abdurrahman Yurtaslan Ankara Oncology Training and Research Hospital | 7 |
| Grupo Español de Rehabilitación Multimodal | 6 |
| Ottawa Hospital Research Institute | 6 |
| Seoul National University Hospital | 6 |
| Xijing Hospital | 5 |
| Centre hospitalier de l'Université de Montréal (CHUM) | 4 |
| Medical University of Vienna | 4 |
| National Taiwan University Hospital | 4 |
| Peking University First Hospital | 4 |
| Rigshospitalet, Denmark | 4 |
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 |
|---|---|
| Postoperative Complications | 540 |
| Colorectal Neoplasms | 16 |
| Frailty | 16 |
| Acute Kidney Injury | 15 |
| COVID-19 | 14 |
| Intraoperative Complications | 13 |
| Breast Neoplasms | 12 |
| Postoperative Pain | 12 |
| Delirium | 11 |
| Emergence Delirium | 11 |
Trials
Showing 1 to 25 of 540. Each trial links to its page on Pharma Observatory.
440 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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