4,859
Registered trials
1,877
Recruiting
2,542
Completed trials
1,158
Sponsors active
831
Research sites
Phase III:
1864
Phase II/III:
198
Phase II:
1248
Phase I/II:
318
Phase III/IV:
55
Phase IV:
271
Phase I:
331
Phase I (Other):
273
Phase I (FiH):
244
Other:
54
Other:
3
Oversight events in trials active here:
133 serious breaches
1020 temporary halts
82 urgent safety measures
101 unexpected events
158 corrective measures
across 562 trials
View oversight register →
Top conditions
Non-small cell lung cancer
189
Non-small cell lung cancer metastatic
61
Ovarian cancer
55
Colorectal cancer
48
Breast cancer
48
Systemic lupus erythematosus
41
Endometrial cancer
35
Squamous cell carcinoma of head and neck
35
Myelodysplastic syndrome
32
Diffuse large B-cell lymphoma
30
Triple negative breast cancer
30
Prostate cancer metastatic
29
Top sponsors
AstraZeneca AB
202
Merck Sharp & Dohme LLC
201
Novartis Pharma AG
182
F. Hoffmann-La Roche AG
166
Janssen - Cilag International
145
AbbVie Deutschland GmbH & Co. KG
114
Pfizer Inc.
98
Glaxosmithkline Research & Development Limited
78
Bristol-Myers Squibb Services Unlimited Company
77
Sanofi-Aventis Recherche & Developpement
76
Boehringer Ingelheim International GmbH
73
Amgen Inc.
71
Cities with most trials
All 234 cities →All trials — page 163
4,859 totalShowing 3,889–3,912 of 4,859 trials