Clinical trial registrations

For example, in 2025 the number of trials registered in Western Pacific (31,097) 27,172) was more than 30 times higher than that in Africa (822) (chart A).

The figure above was extracted from this passage. If it does not match, the extraction is wrong and we want to know.

Published under CC BY 4.0. Attribute the original publisher; the citations below do that for you and link to this permanent record.

APA

World Health Organization. (2025). Number of clinical trials by year, country, WHO region and income group (1999-2022). Retrieved September 17, 2026, from https://who.int/observatories/global-observatory-on-health-research-and-development/monitoring/number-of-clinical-trials-by-year-country-who-region-and-income-group. Via StatOrigin, https://statorigin.org/stat/stat_4BJA299Q4VDN8AFTPVK3RB8S9V

Copy

MLA

World Health Organization. "Number of clinical trials by year, country, WHO region and income group (1999-2022)." 2025, https://who.int/observatories/global-observatory-on-health-research-and-development/monitoring/number-of-clinical-trials-by-year-country-who-region-and-income-group. Accessed 17 Sept. 2026 via StatOrigin, https://statorigin.org/stat/stat_4BJA299Q4VDN8AFTPVK3RB8S9V.

Copy

Chicago

World Health Organization. "Number of clinical trials by year, country, WHO region and income group (1999-2022)." 2025. https://who.int/observatories/global-observatory-on-health-research-and-development/monitoring/number-of-clinical-trials-by-year-country-who-region-and-income-group. Accessed September 17, 2026. Cited from StatOrigin, https://statorigin.org/stat/stat_4BJA299Q4VDN8AFTPVK3RB8S9V.

Copy

BibTeX

@misc{who2025clinicalrb8s9v, author = {{World Health Organization}}, title = {Number of clinical trials by year, country, WHO region and income group (1999-2022)}, year = {2025}, howpublished = {StatOrigin, https://statorigin.org}, url = {https://statorigin.org/stat/stat_4BJA299Q4VDN8AFTPVK3RB8S9V}, note = {Original source: https://who.int/observatories/global-observatory-on-health-research-and-development/monitoring/number-of-clinical-trials-by-year-country-who-region-and-income-group. Accessed September 17, 2026.} }

Copy

Everything needed to check this number yourself, without taking our word for it.

Record last modified 17 September 2026. Value type: actual. Update cadence: annual. This page is permanently addressable at statorigin.org/stat/stat_4BJA299Q4VDN8AFTPVK3RB8S9V.