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Clinical trials

Trial Insights

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

611,782 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
201118,386
201219,470
201320,350
201422,660
201524,450
201626,514
201727,997
201830,235
201932,030
202033,644
202138,613
202237,767
202339,467
202440,859
202540,559
202639,159

Status

Trials by registry status. Select a bar to filter.

Trials by status
CategoryTrials
Completed334,992
Unknown status94,142
Recruiting67,301
Terminated34,733
Not yet recruiting31,487
Active, not recruiting22,845
Withdrawn16,988
Enrolling by invitation5,471
Suspended1,756
Withheld991
No longer available545
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 University5,081
Cairo University4,951
GlaxoSmithKline3,650
Assistance Publique - Hôpitaux de Paris3,596
National Cancer Institute (NCI)3,556
AstraZeneca3,503
Pfizer3,337
Mayo Clinic3,271
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 Neoplasms13,547
Obesity11,411
Neoplasms10,824
Diabetes Mellitus, Type 210,061
Pain9,129
Diabetes Mellitus8,230
Stroke7,857
COVID-197,575
Anxiety Disorders7,216
Carcinoma, Non-Small-Cell Lung7,102

Trials

Showing 1 to 25 of 611,782. Each trial links to its page on Pharma Observatory.

611,682 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.