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Clinical trials

Trial Insights

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

611,243 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
200916,315
201017,524
201118,384
201219,468
201320,351
201422,659
201524,448
201626,514
201727,994
201830,235
201932,029
202033,640
202138,609
202237,761
202339,450
202440,850
202540,516
202638,834

Status

Trials by registry status. Select a bar to filter.

Trials by status
CategoryTrials
Completed334,633
Unknown status94,214
Recruiting67,209
Terminated34,707
Not yet recruiting31,407
Active, not recruiting22,813
Withdrawn16,971
Enrolling by invitation5,458
Suspended1,762
Withheld993
No longer available544
Available249
Approved for marketing246
Temporarily not available37

Top lead sponsors

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

Top lead sponsors
CategoryTrials
Assiut University5,078
Cairo University4,941
GlaxoSmithKline3,650
Assistance Publique - Hôpitaux de Paris3,592
National Cancer Institute (NCI)3,556
AstraZeneca3,499
Pfizer3,334
Mayo Clinic3,269
M.D. Anderson Cancer Center3,047
Novartis Pharmaceuticals2,718

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 Neoplasms13,541
Obesity11,397
Neoplasms10,818
Diabetes Mellitus, Type 210,050
Pain9,119
Diabetes Mellitus8,228
Stroke7,844
COVID-197,573
Anxiety Disorders7,201
Carcinoma, Non-Small-Cell Lung7,098

Trials

Showing 1 to 25 of 611,243. Each trial links to its page on Pharma Observatory.

611,143 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.