Clinical trials
Observational trials in Japan
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
1,163 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2000 | 4 |
| 2001 | 5 |
| 2002 | 4 |
| 2003 | 8 |
| 2004 | 17 |
| 2005 | 12 |
| 2006 | 14 |
| 2007 | 25 |
| 2008 | 30 |
| 2009 | 35 |
| 2010 | 46 |
| 2011 | 41 |
| 2012 | 65 |
| 2013 | 55 |
| 2014 | 61 |
| 2015 | 67 |
| 2016 | 72 |
| 2017 | 58 |
| 2018 | 60 |
| 2019 | 62 |
| 2020 | 64 |
| 2021 | 69 |
| 2022 | 65 |
| 2023 | 69 |
| 2024 | 58 |
| 2025 | 48 |
| 2026 | 29 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Completed | 775 |
| Recruiting | 156 |
| Unknown status | 107 |
| Active, not recruiting | 87 |
| Enrolling by invitation | 15 |
| Terminated | 11 |
| Not yet recruiting | 7 |
| Withdrawn | 4 |
| Suspended | 1 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| AstraZeneca | 79 |
| Bayer | 77 |
| Takeda | 65 |
| Pfizer | 59 |
| Novo Nordisk A/S | 45 |
| Boehringer Ingelheim | 42 |
| Bristol-Myers Squibb | 42 |
| Eisai Co., Ltd. | 30 |
| AbbVie | 28 |
| Novartis Pharmaceuticals | 26 |
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 |
|---|---|
| Diabetes Mellitus, Type 2 | 51 |
| Coronary Artery Disease | 31 |
| Carcinoma, Non-Small-Cell Lung | 28 |
| Atrial Fibrillation | 24 |
| Diabetes Mellitus | 23 |
| Heart Failure | 23 |
| Arthritis, Rheumatoid | 20 |
| Pulmonary Disease, Chronic Obstructive | 20 |
| Asthma | 19 |
| Stomach Neoplasms | 17 |
Trials
Showing 76 to 100 of 1,163. Each trial links to its page on Pharma Observatory.
1,063 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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