China vs Spain: Number of clinical trials
China
1,649 trials
in 2024
Spain
566 trials
in 2024
China rank
3rd
Spain rank
6th
Number of clinical trials over time
- China
- Spain
How they compare
China currently reports 1,649 trials against 566 trials in Spain, a difference of 1,083 trials.
That makes China's figure about 2.9 times Spain's.
The two have swapped places 3 times across 23 shared years of data; in 2002 it was Spain ahead.
China ranks 3rd and Spain ranks 6th of 153 countries.
China has averaged higher in every one of the 3 decades both report.
Head to head by decade
| Decade | China | Spain | Difference | Ahead |
|---|---|---|---|---|
| 2000s | 61.38 trials | 46.75 trials | 14.62 trials | China |
| 2010s | 453.2 trials | 289.3 trials | 163.9 trials | China |
| 2020s | 1,360 trials | 600.6 trials | 759 trials | China |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher number of clinical trials, China or Spain?
- China, at 1,649 trials against 566 trials in Spain as of 2024.
- What is the difference in number of clinical trials between China and Spain?
- 1,083 trials, with China ahead.
- How many years of comparable data are there for China and Spain?
- 23 years are reported by both, from 2002 to 2024.
- How do China and Spain rank globally for number of clinical trials?
- China ranks 3rd and Spain ranks 6th of 153 countries.
- Where does this data come from?
- ClinicalTrials.gov (2025) – with major processing by Our World in Data, published as Number of clinical trials. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
Annual number of completed clinical trials registered in the ClinicalTrials.gov database for each country. Registration in the ClinicalTrials database is mandatory for trials in the United States, but voluntary for other countries.