Clinical trials
Observational trials in China with unknown status
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
4,463 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2000 | 5 |
| 2001 | 2 |
| 2002 | 1 |
| 2003 | 4 |
| 2004 | 4 |
| 2005 | 5 |
| 2006 | 8 |
| 2007 | 17 |
| 2008 | 25 |
| 2009 | 30 |
| 2010 | 59 |
| 2011 | 66 |
| 2012 | 101 |
| 2013 | 102 |
| 2014 | 120 |
| 2015 | 144 |
| 2016 | 251 |
| 2017 | 327 |
| 2018 | 360 |
| 2019 | 388 |
| 2020 | 468 |
| 2021 | 564 |
| 2022 | 631 |
| 2023 | 561 |
| 2024 | 213 |
| 2025 | 2 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Unknown status | 4,463 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| Peking University Third Hospital | 154 |
| Peking Union Medical College Hospital | 152 |
| Sun Yat-sen University | 136 |
| Second Affiliated Hospital, Zhejiang University, School of Medicine | 129 |
| Nanfang Hospital, Southern Medical University | 82 |
| Shanghai Zhongshan Hospital | 81 |
| RenJi Hospital | 75 |
| Fudan University | 72 |
| Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University | 70 |
| First Affiliated Hospital Xi'an Jiaotong University | 68 |
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 |
|---|---|
| Breast Neoplasms | 130 |
| Lung Neoplasms | 94 |
| Carcinoma, Hepatocellular | 93 |
| Carcinoma, Non-Small-Cell Lung | 91 |
| Stomach Neoplasms | 91 |
| Colorectal Neoplasms | 86 |
| Disease | 84 |
| Coronary Artery Disease | 73 |
| COVID-19 | 72 |
| Sepsis | 67 |
Trials
Showing 1 to 25 of 4,463. Each trial links to its page on Pharma Observatory.
4,363 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.
Go deeper on Pharma Observatory
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