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Clinical trials

Trial Insights

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

607,354 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
20047,483
20059,346
200611,332
200712,971
200814,980
200916,316
201017,525
201118,382
201219,467
201320,349
201422,656
201524,441
201626,511
201727,986
201830,223
201932,016
202033,622
202138,578
202237,719
202339,364
202440,695
202540,221
202636,227

Status

Trials by registry status. Select a bar to filter.

Trials by status
CategoryTrials
Completed332,120
Unknown status94,729
Recruiting66,486
Terminated34,506
Not yet recruiting30,819
Active, not recruiting22,575
Withdrawn16,895
Enrolling by invitation5,392
Suspended1,776
Withheld984
No longer available538
Available252
Approved for marketing244
Temporarily not available38

Top lead sponsors

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

Top lead sponsors
CategoryTrials
Assiut University5,027
Cairo University4,899
GlaxoSmithKline3,647
Assistance Publique - Hôpitaux de Paris3,568
National Cancer Institute (NCI)3,553
AstraZeneca3,489
Pfizer3,318
Mayo Clinic3,259
M.D. Anderson Cancer Center3,044
Novartis Pharmaceuticals2,709

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 Neoplasms13,469
Obesity11,313
Neoplasms10,777
Diabetes Mellitus, Type 29,983
Pain9,065
Diabetes Mellitus8,207
Stroke7,784
COVID-197,569
Anxiety Disorders7,128
Carcinoma, Non-Small-Cell Lung7,047

Trials

Showing 1 to 25 of 607,354. Each trial links to its page on Pharma Observatory.

607,254 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.