Number of clinical trials in Bulgaria

Bulgaria: Number of clinical trials was 16 in 2024. ◆ Volatile

Latest (2024)
16
Change on year
down 33.3%
World rank
61st
of 153 countries
All-time high
24
in 2023
All-time low
1
in 2004
Years of data
21
2004–2024

Number of clinical trials in Bulgaria, 2004–2024

05101520252004201420242004: 12005: 22006: 72007: 82008: 62009: 52010: 42011: 42012: 112013: 142014: 132015: 132016: 82017: 142018: 122019: 132020: 132021: 182022: 212023: 242024: 16

Source: Our World in Data.

Analysis

In 2024, number of clinical trials in Bulgaria stood at 16.

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 in 2023 and was at its lowest, 1, 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.

Number of clinical trials in Bulgaria, year by year

Annual values for Number of clinical trials in Bulgaria, 2004 to 2024.
Year Value Change
2004 1 —
2005 2 +100.0%
2006 7 +250.0%
2007 8 +14.3%
2008 6 -25.0%
2009 5 -16.7%
2010 4 -20.0%
2011 4 +0.0%
2012 11 +175.0%
2013 14 +27.3%
2014 13 -7.1%
2015 13 +0.0%
2016 8 -38.5%
2017 14 +75.0%
2018 12 -14.3%
2019 13 +8.3%
2020 13 +0.0%
2021 18 +38.5%
2022 21 +16.7%
2023 24 +14.3%
2024 16 -33.3%

Bulgaria compared with similar countries

  • Bulgaria's 16 is below the median for high income countries, which is 46.5, 34% of the median. (54 countries reporting)
  • Bulgaria's 16 is below the median for Europe & Central Asia, which is 20.5, 78% of the median. (46 countries reporting)

Biggest year-on-year movements

Years where Number of clinical trials in Bulgaria 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.

YearChange FromTo
2006 +250.0% 2 7

Averages by decade

DecadeAverage LowestHighest Years
2000s 4.83 1 8 6
2010s 10.6 4 14 10
2020s 18.4 13 24 5

Countries ranked near Bulgaria

  1. 58 Lebanon 19 compare
  2. 58 Philippines 19 compare
  3. 58 Tunisia 19 compare
  4. 62 Syria 15 compare
  5. 63 Burkina Faso 13 compare
  6. 63 Kazakhstan 13 compare
  7. 63 Nigeria 13 compare

See the full ranking of 153 places →

More reference data data for Bulgaria

All data for Bulgaria →

Frequently asked questions

What is number of clinical trials in Bulgaria?
Number of clinical trials in Bulgaria was 16 in 2024, according to Our World in Data.
What is the highest number of clinical trials recorded in Bulgaria?
The highest recorded value was 24 in 2023.
What is the lowest number of clinical trials recorded in Bulgaria?
The lowest recorded value was 1 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 Our World in Data, published as part of Number of clinical trials. Statizoid updates them automatically from the source API.

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Number of clinical trials in Bulgaria. Statizoid, drawing on Our World in Data. Retrieved 15 November 2026, from https://reference.statizoid.com/stat/number-of-clinical-trials/bulgaria/

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About this data

Indicator
Number of clinical trials
Source
Our World in Data
Licence
CC BY 4.0 (Our World in Data)
Coverage
153 places, 2,621 data points, 2000–2024
Last refreshed