Number of clinical trials in Spain
Spain: Number of clinical trials was 566 trials in 2024. ◆ Volatile
Number of clinical trials in Spain, 2001–2024
Source: ClinicalTrials.gov (2025) – with major processing by Our World in Data. Measured in trials.
Analysis
The most recent figure for number of clinical trials in Spain is 566 trials, measured in 2024.
Compared with earlier readings it is down 16.9% on the previous year and up 125.5% over ten years.
Over the whole period, number of clinical trials in Spain peaked at 681 trials in 2023 and was at its lowest, 2 trials, in 2001.
Spain ranks 6th of 153 countries on this measure, in the top 10%.
The series is highly variable year to year, so single readings are best treated with caution.
Number of clinical trials in Spain, year by year
| Year | trials | Change |
|---|---|---|
| 2001 | 2 trials | — |
| 2002 | 3 trials | +50.0% |
| 2003 | 7 trials | +133.3% |
| 2004 | 18 trials | +157.1% |
| 2005 | 42 trials | +133.3% |
| 2006 | 38 trials | -9.5% |
| 2007 | 72 trials | +89.5% |
| 2008 | 79 trials | +9.7% |
| 2009 | 115 trials | +45.6% |
| 2010 | 121 trials | +5.2% |
| 2011 | 157 trials | +29.8% |
| 2012 | 196 trials | +24.8% |
| 2013 | 237 trials | +20.9% |
| 2014 | 251 trials | +5.9% |
| 2015 | 288 trials | +14.7% |
| 2016 | 321 trials | +11.5% |
| 2017 | 354 trials | +10.3% |
| 2018 | 442 trials | +24.9% |
| 2019 | 526 trials | +19.0% |
| 2020 | 536 trials | +1.9% |
| 2021 | 562 trials | +4.9% |
| 2022 | 658 trials | +17.1% |
| 2023 | 681 trials | +3.5% |
| 2024 | 566 trials | -16.9% |
Spain compared with similar countries
- Spain's 566 trials is above the median for high income countries, which is 46.5 trials, 12.2× the median. (54 countries reporting)
- Spain's 566 trials is above the median for Europe & Central Asia, which is 20.5 trials, 27.6× the median. (46 countries reporting)
Biggest year-on-year movements
Years where Number of clinical trials in Spain changed far more than this series normally does. A large move can be a real event or a change in how the figure was measured — the source note below says who published it.
| Year | Change | From | To |
|---|---|---|---|
| 2004 | +157.1% | 7 trials | 18 trials |
| 2003 | +133.3% | 3 trials | 7 trials |
| 2005 | +133.3% | 18 trials | 42 trials |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 2000s | 41.78 trials | 2 trials | 115 trials | 9 |
| 2010s | 289.3 trials | 121 trials | 526 trials | 10 |
| 2020s | 600.6 trials | 536 trials | 681 trials | 5 |
Countries ranked near Spain
More reference data data for Spain
- Emission Totals - Indirect emissions (N2O) - Manure applied to Soils 3.18 (2050)
- Emission Totals - Indirect emissions (N2O) - Manure left on Pasture 2.85 (2050)
- Emission Totals - Indirect emissions (N2O) - IPCC Agriculture 11.76 (2050)
- Emission Totals - Indirect emissions (N2O) - Crop Residues 0.898 (2050)
- Emission Totals - Indirect emissions (N2O) - Agricultural Soils 11.76 (2050)
- Emission Totals - Emissions (N2O) - Manure applied to Soils 10.67 (2050)
- Emission Totals - Emissions (N2O) - Manure Management 6.03 (2050)
- Emission Totals - Emissions (N2O) - Manure left on Pasture 11.06 (2050)
- Emission Totals - Emissions (N2O) - IPCC Agriculture 52.4 (2050)
- Emission Totals - Emissions (N2O) - Crop Residues 4.89 (2050)
Frequently asked questions
- What is number of clinical trials in Spain?
- Number of clinical trials in Spain was 566 trials in 2024, according to ClinicalTrials.gov (2025) – with major processing by Our World in Data.
- What is the highest number of clinical trials recorded in Spain?
- The highest recorded value was 681 trials in 2023.
- What is the lowest number of clinical trials recorded in Spain?
- The lowest recorded value was 2 trials in 2001.
- How does Spain rank for number of clinical trials?
- Spain ranks 6th out of 153 countries with data for 2024.
- Is number of clinical trials rising or falling in Spain?
- Over the last ten years it is up 125.5%. The long-run trend across the full record is volatile.
- Where does this Spain data come from?
- The figures come from ClinicalTrials.gov (2025) – with major processing by Our World in Data, published as part of Number of clinical trials. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 24 observations, free to reuse under CC BY 4.0 (Our World in Data).
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.