Clinical trials initiated worldwide 2018-2024, by trial phase

Published by
Matej Mikulic,
Feb 5, 2025

In 2023, there were 2,580 phase I clinical drug trials started, compared to 2,236 phase I trials initiated during the previous year. This statistic depicts the annual number of clinical trials started worldwide from 2018 to 2024, by trial phase.

Number of clinical trials started worldwide from 2018 to 2024, by trial phase

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Release date

December 2024

Region

Worldwide

Survey time period

2018 to 2024

Supplementary notes

Note: Phase 2 includes Phases 1/2, 2, 2a, 2b. Phase 3 includes Phase 2/3 and 3. Trials were industry sponsored; Terminated trials & medical devices were excluded from analysis. 
* As of November 2024.

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