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Clinical trials

Trial Insights

Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.

610,048 trials match Source: ClinicalTrials.gov registrations

Trials started per year

By phase, 2000 to 2026.

Trials started per year
CategoryTrials
20002,336
20012,910
20024,131
20035,672
20047,484
20059,346
200611,332
200712,971
200814,980
200916,316
201017,523
201118,383
201219,469
201320,348
201422,659
201524,446
201626,513
201727,989
201830,234
201932,028
202033,633
202138,610
202237,742
202339,419
202440,798
202540,430
202638,093

Status

Trials by registry status. Select a bar to filter.

Trials by status
CategoryTrials
Completed333,842
Unknown status94,391
Recruiting66,970
Terminated34,649
Not yet recruiting31,285
Active, not recruiting22,706
Withdrawn16,942
Enrolling by invitation5,432
Suspended1,769
Withheld987
No longer available544
Available249
Approved for marketing245
Temporarily not available37

Top lead sponsors

A sponsor with a page on Pharma Observatory links to it.

Top lead sponsors
CategoryTrials
Assiut University5,065
Cairo University4,924
GlaxoSmithKline3,649
Assistance Publique - Hôpitaux de Paris3,583
National Cancer Institute (NCI)3,555
AstraZeneca3,495
Pfizer3,330
Mayo Clinic3,267
M.D. Anderson Cancer Center3,046
Novartis Pharmaceuticals2,714

Top conditions

MeSH conditions the trials were registered with, not their broader categories. A condition with a page on Pharma Observatory links to it.

Top conditions
CategoryTrials
Breast Neoplasms13,521
Obesity11,368
Neoplasms10,799
Diabetes Mellitus, Type 210,015
Pain9,107
Diabetes Mellitus8,224
Stroke7,829
COVID-197,572
Anxiety Disorders7,184
Carcinoma, Non-Small-Cell Lung7,089

Trials

Showing 1 to 25 of 610,048. Each trial links to its page on Pharma Observatory.

609,948 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.