Medical device trials and terminated/suspended trials were excluded. ROW includes LATAM, Middle East & Africa. Rest of Europe includes Russia. Trial with sites in multiple regions were counted once for each region.Â
Sums may not add up to 100 percent due to rounding effects.
EEA = European Economic Area.
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Share of clinical trials started worldwide 2013-2023, by region
In 2023, 17 percent of all clinical drug trials worldwide were started in North America, whereas 29 percent of trials were initiated in China. This statistic shows the geographical distribution of clinical drug trials started worldwide from 2013 to 2023, by region.
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IQVIA, & Vaccines Europe, & EFPIA. (October 29, 2024). Geographical distribution of clinical trials started worldwide from 2013 to 2023, by region [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 24, 2026, from /statistics/1249029/clinical-trials-started-worldwide-by-region/
IQVIA, und Vaccines Europe, und EFPIA. "Geographical distribution of clinical trials started worldwide from 2013 to 2023, by region." Chart. October 29, 2024. ÌÇÐÄÆƽâ°æ. Accessed July 24, 2026. /statistics/1249029/clinical-trials-started-worldwide-by-region/
IQVIA, Vaccines Europe, EFPIA. (2024). Geographical distribution of clinical trials started worldwide from 2013 to 2023, by region. ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 24, 2026. /statistics/1249029/clinical-trials-started-worldwide-by-region/
IQVIA, and Vaccines Europe, and EFPIA. "Geographical Distribution of Clinical Trials Started Worldwide from 2013 to 2023, by Region." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 29 Oct 2024, /statistics/1249029/clinical-trials-started-worldwide-by-region/
IQVIA & Vaccines Europe & EFPIA, Geographical distribution of clinical trials started worldwide from 2013 to 2023, by region ÌÇÐÄÆƽâ°æ, /statistics/1249029/clinical-trials-started-worldwide-by-region/ (last visited July 24, 2026)
Geographical distribution of clinical trials started worldwide from 2013 to 2023, by region [Graph], IQVIA, & Vaccines Europe, & EFPIA, October 29, 2024. [Online]. Available: /statistics/1249029/clinical-trials-started-worldwide-by-region/
