Clinical trials
Recruiting trials in Japan
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
1,148 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2001 | 2 |
| 2004 | 2 |
| 2006 | 2 |
| 2008 | 1 |
| 2009 | 1 |
| 2010 | 1 |
| 2011 | 1 |
| 2012 | 4 |
| 2013 | 2 |
| 2014 | 2 |
| 2015 | 3 |
| 2016 | 10 |
| 2017 | 8 |
| 2018 | 12 |
| 2019 | 19 |
| 2020 | 20 |
| 2021 | 49 |
| 2022 | 67 |
| 2023 | 107 |
| 2024 | 159 |
| 2025 | 361 |
| 2026 | 313 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Recruiting | 1,148 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| AstraZeneca | 90 |
| Eli Lilly and Company | 65 |
| Pfizer | 53 |
| Novartis Pharmaceuticals | 51 |
| Merck Sharp & Dohme LLC | 50 |
| Bristol-Myers Squibb | 42 |
| GlaxoSmithKline | 39 |
| AbbVie | 38 |
| Takeda | 36 |
| Janssen Research & Development, LLC | 33 |
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 |
|---|---|
| Carcinoma, Non-Small-Cell Lung | 88 |
| Neoplasms | 55 |
| Breast Neoplasms | 41 |
| Colorectal Neoplasms | 38 |
| Ovarian Neoplasms | 35 |
| Multiple Myeloma | 31 |
| Neoplasm Metastasis | 29 |
| Stomach Neoplasms | 29 |
| Endometrial Neoplasms | 26 |
| Lung Neoplasms | 26 |
Trials
Showing 1 to 25 of 1,148. Each trial links to its page on Pharma Observatory.
1,048 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.