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Clinical trials

Recruiting Observational trials

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

Filters: Phase: Observational Status: Recruiting Clear all

18,007 trials match Source: ClinicalTrials.gov registrations

Trials started per year

By phase, 2000 to 2026.

Trials started per year
CategoryTrials
200032
200134
200242
200338
200444
200546
200644
200760
200858
200971
2010111
2011104
2012112
2013162
2014181
2015230
2016303
2017339
2018369
2019544
2020740
20211,040
20221,372
20232,091
20243,311
20253,858
20262,555

Status

Trials by registry status. Select a bar to filter.

Trials by status
CategoryTrials
Recruiting18,007

Top lead sponsors

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

Top lead sponsors
CategoryTrials
Assistance Publique - Hôpitaux de Paris263
IRCCS Azienda Ospedaliero-Universitaria di Bologna201
Mayo Clinic158
Fondazione Policlinico Universitario Agostino Gemelli IRCCS137
University Hospital, Strasbourg, France135
Hospices Civils de Lyon126
M.D. Anderson Cancer Center117
Chinese University of Hong Kong103
National Taiwan University Hospital97
AstraZeneca86

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
Neoplasms521
Breast Neoplasms468
Lung Neoplasms275
Heart Failure274
Cardiovascular Diseases261
Obesity253
Prostatic Neoplasms252
Stroke250
Disease248
Colorectal Neoplasms229

Trials

Showing 1 to 25 of 18,007. Each trial links to its page on Pharma Observatory.

17,907 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.