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Clinical trials

Trial Insights

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

608,221 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
201017,523
201118,384
201219,467
201320,349
201422,656
201524,445
201626,509
201727,988
201830,227
201932,021
202033,631
202138,594
202237,730
202339,376
202440,727
202540,289
202636,854

Status

Trials by registry status. Select a bar to filter.

Trials by status
CategoryTrials
Completed332,696
Unknown status94,591
Recruiting66,639
Terminated34,559
Not yet recruiting30,964
Active, not recruiting22,633
Withdrawn16,902
Enrolling by invitation5,400
Suspended1,778
Withheld986
No longer available541
Available249
Approved for marketing244
Temporarily not available39

Top lead sponsors

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

Top lead sponsors
CategoryTrials
Assiut University5,047
Cairo University4,905
GlaxoSmithKline3,647
Assistance Publique - Hôpitaux de Paris3,576
National Cancer Institute (NCI)3,553
AstraZeneca3,492
Pfizer3,323
Mayo Clinic3,263
M.D. Anderson Cancer Center3,044
Novartis Pharmaceuticals2,711

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 Neoplasms13,489
Obesity11,331
Neoplasms10,785
Diabetes Mellitus, Type 29,999
Pain9,080
Diabetes Mellitus8,214
Stroke7,796
COVID-197,570
Anxiety Disorders7,141
Carcinoma, Non-Small-Cell Lung7,064

Trials

Showing 1 to 25 of 608,221. Each trial links to its page on Pharma Observatory.

608,121 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.