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Clinical trials

Trial Insights

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

610,754 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
201118,384
201219,468
201320,349
201422,659
201524,448
201626,512
201727,993
201830,235
201932,028
202033,638
202138,608
202237,757
202339,435
202440,833
202540,475
202638,532

Status

Trials by registry status. Select a bar to filter.

Trials by status
CategoryTrials
Completed334,329
Unknown status94,281
Recruiting67,096
Terminated34,685
Not yet recruiting31,355
Active, not recruiting22,765
Withdrawn16,960
Enrolling by invitation5,448
Suspended1,770
Withheld989
No longer available544
Available250
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 University5,074
Cairo University4,935
GlaxoSmithKline3,650
Assistance Publique - Hôpitaux de Paris3,587
National Cancer Institute (NCI)3,556
AstraZeneca3,499
Pfizer3,332
Mayo Clinic3,267
M.D. Anderson Cancer Center3,047
Novartis Pharmaceuticals2,717

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 Neoplasms13,534
Obesity11,385
Neoplasms10,809
Diabetes Mellitus, Type 210,036
Pain9,115
Diabetes Mellitus8,225
Stroke7,839
COVID-197,572
Anxiety Disorders7,194
Carcinoma, Non-Small-Cell Lung7,095

Trials

Showing 1 to 25 of 610,754. Each trial links to its page on Pharma Observatory.

610,654 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.