Total number of registered clinical studies worldwide since 2000

Total number of registered clinical studies worldwide since 2000 (as of September 2021)*

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Release date

September 2021

Region

Worldwide

Survey time period

as of September 19, 2021

Supplementary notes

* Total number of studies registered on ClinicalTrials.gov since 2000, based on the First Received date. The first version of ClinicalTrials.gov was made available to the public on February 29, 2000.

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Statistics on "Clinical trials"

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