Number of clinical trials in Tanzania
Tanzania: Number of clinical trials was 12 trials in 2024. ◆ Volatile
Number of clinical trials in Tanzania, 2002–2024
Source: ClinicalTrials.gov (2025) – with major processing by Our World in Data. Measured in trials.
Analysis
Tanzania recorded 12 trials for number of clinical trials in 2024.
The figure is up 33.3% over ten years.
Over the whole period, number of clinical trials in Tanzania peaked at 21 trials in 2020 and was at its lowest, 1 trials, in 2002.
That places Tanzania 66th 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 Tanzania, year by year
| Year | trials | Change |
|---|---|---|
| 2002 | 1 trials | — |
| 2004 | 3 trials | +200.0% |
| 2005 | 3 trials | +0.0% |
| 2006 | 4 trials | +33.3% |
| 2007 | 5 trials | +25.0% |
| 2008 | 5 trials | +0.0% |
| 2009 | 9 trials | +80.0% |
| 2010 | 4 trials | -55.6% |
| 2011 | 9 trials | +125.0% |
| 2012 | 10 trials | +11.1% |
| 2013 | 13 trials | +30.0% |
| 2014 | 9 trials | -30.8% |
| 2015 | 9 trials | +0.0% |
| 2016 | 10 trials | +11.1% |
| 2017 | 18 trials | +80.0% |
| 2018 | 14 trials | -22.2% |
| 2019 | 18 trials | +28.6% |
| 2020 | 21 trials | +16.7% |
| 2021 | 17 trials | -19.0% |
| 2022 | 12 trials | -29.4% |
| 2023 | 12 trials | +0.0% |
| 2024 | 12 trials | +0.0% |
Tanzania compared with similar countries
- Tanzania's 12 trials is above the median for lower middle income countries, which is 3 trials, 4.0× the median. (34 countries reporting)
- Tanzania's 12 trials is above the median for Sub-Saharan Africa, which is 3 trials, 4.0× the median. (35 countries reporting)
Biggest year-on-year movements
Years where Number of clinical trials in Tanzania 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 | +200.0% | 1 trials | 3 trials |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 2000s | 4.29 trials | 1 trials | 9 trials | 7 |
| 2010s | 11.4 trials | 4 trials | 18 trials | 10 |
| 2020s | 14.8 trials | 12 trials | 21 trials | 5 |
Countries ranked near Tanzania
More reference data data for Tanzania
- Emission Totals - Indirect emissions (N2O) - Manure applied to Soils 0.6405 (2050)
- Emission Totals - Indirect emissions (N2O) - Manure left on Pasture 11.44 (2050)
- Emission Totals - Indirect emissions (N2O) - IPCC Agriculture 14.14 (2050)
- Emission Totals - Indirect emissions (N2O) - Crop Residues 0.7582 (2050)
- Emission Totals - Indirect emissions (N2O) - Agricultural Soils 14.14 (2050)
- Emission Totals - Emissions (N2O) - Manure applied to Soils 2.15 (2050)
- Emission Totals - Emissions (N2O) - Manure Management 1.26 (2050)
- Emission Totals - Emissions (N2O) - Manure left on Pasture 59.37 (2050)
- Emission Totals - Emissions (N2O) - IPCC Agriculture 72.45 (2050)
- Emission Totals - Emissions (N2O) - Crop Residues 4.13 (2050)
Frequently asked questions
- What is number of clinical trials in Tanzania?
- Number of clinical trials in Tanzania was 12 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 Tanzania?
- The highest recorded value was 21 trials in 2020.
- What is the lowest number of clinical trials recorded in Tanzania?
- The lowest recorded value was 1 trials in 2002.
- How does Tanzania rank for number of clinical trials?
- Tanzania ranks 66th out of 153 countries with data for 2024.
- Is number of clinical trials rising or falling in Tanzania?
- Over the last ten years it is up 33.3%. The long-run trend across the full record is volatile.
- Where does this Tanzania 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 — 22 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.