Number of clinical trials in Bulgaria
Bulgaria: Number of clinical trials was 16 trials in 2024. ◆ Volatile
Number of clinical trials in Bulgaria, 2004–2024
Source: ClinicalTrials.gov (2025) – with major processing by Our World in Data. Measured in trials.
Analysis
In 2024, number of clinical trials in Bulgaria stood at 16 trials.
Compared with earlier readings it is down 33.3% on the previous year and up 23.1% over ten years.
Over the whole period, number of clinical trials in Bulgaria peaked at 24 trials in 2023 and was at its lowest, 1 trials, in 2004.
That places Bulgaria 61st out of 153 countries with data for 2024, putting it in the middle of the range.
The series is highly variable year to year, so single readings are best treated with caution.
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 2000s | 4.83 trials | 1 trials | 8 trials | 6 |
| 2010s | 10.6 trials | 4 trials | 14 trials | 10 |
| 2020s | 18.4 trials | 13 trials | 24 trials | 5 |
Countries ranked near Bulgaria
- 58 Lebanon 19 trials compare
- 58 Philippines 19 trials compare
- 58 Tunisia 19 trials compare
- 62 Syria 15 trials compare
- 63 Burkina Faso 13 trials compare
- 63 Kazakhstan 13 trials compare
- 63 Nigeria 13 trials compare
More reference data data for Bulgaria
- Spring temperature anomalies 0.2116 °C (2026)
- Summer temperature anomalies 1.08 °C (2026)
- Temperature anomalies by month 1.39 °C (2026)
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- Autumn temperature anomalies 1.44 °C (2025)
- Winter temperature anomalies 1.98 °C (2025)
- Consumer price index 162.5 2010 = 100 (2025)
- Universal right to vote 2 (2025)
- Competitive elections 1 (2025)
- Men's universal right to vote 1 (2025)
Frequently asked questions
- What is number of clinical trials in Bulgaria?
- Number of clinical trials in Bulgaria was 16 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 Bulgaria?
- The highest recorded value was 24 trials in 2023.
- What is the lowest number of clinical trials recorded in Bulgaria?
- The lowest recorded value was 1 trials in 2004.
- How does Bulgaria rank for number of clinical trials?
- Bulgaria ranks 61st out of 153 countries with data for 2024.
- Is number of clinical trials rising or falling in Bulgaria?
- Over the last ten years it is up 23.1%. The long-run trend across the full record is volatile.
- Where does this Bulgaria 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.
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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.