Number of clinical trials by country

Countries reporting
153
Highest
6,222
United States
Lowest
1
Reunion
Median
8
Years covered
25
2000–2024
Data points
2,621

What the numbers show

Number of clinical trials is currently reported for 153 countries. The highest value is 6,222 in United States; the lowest is 1 in Reunion.

The median across all reporting countries is 8, and the mean is 127.09.

The gap between the highest and lowest reporting country is a factor of about 6,222.

Over the past decade 104 countries rose and 27 fell. The largest increase was in Iraq (up 3,100.0%), and the largest decrease in Panama (down 75.0%).

Number of clinical trials: full country ranking

#Country LatestYear 10-year changeTrend
1 United States 6,222 2024 up 19.8% volatile
2 Turkey 2,075 2024 up 2,039.2% volatile
3 China 1,649 2024 up 308.2% volatile
4 Egypt 1,144 2024 up 1,405.3% volatile
5 France 896 2024 up 42.2% volatile
6 Spain 566 2024 up 125.5% volatile
7 Italy 561 2024 up 119.1% volatile
8 Canada 527 2024 unchanged volatile
9 United Kingdom 487 2024 up 2.1% volatile
10 Pakistan 452 2024 up 2,558.8% volatile
11 Germany 420 2024 down 24.7% volatile
12 South Korea 282 2024 down 39.2% volatile
13 Denmark 258 2024 up 0.8% volatile
14 Netherlands 251 2024 up 8.2% volatile
15 Taiwan 235 2024 up 104.3% volatile
16 Switzerland 231 2024 up 63.8% volatile
17 Belgium 205 2024 up 3.5% volatile
18 Brazil 163 2024 down 14.7% volatile
19 Sweden 162 2024 up 20.9% volatile
20 Australia 158 2024 up 62.9% volatile
21 Japan 138 2024 down 44.6% volatile
22 India 131 2024 up 20.2% volatile
23 Poland 121 2024 up 116.1% volatile
24 Hong Kong 112 2024 up 433.3% volatile
25 Thailand 105 2024 up 54.4% volatile
26 Russia 96 2024 up 84.6% volatile
27 Indonesia 88 2024 up 363.2% volatile
28 Austria 86 2024 up 8.9% volatile
29 Norway 85 2024 down 18.3% volatile
30 Greece 72 2024 up 33.3% volatile
31 Mexico 68 2024 up 21.4% volatile
32 Israel 64 2024 down 42.9% volatile
33 Saudi Arabia 58 2024 up 286.7% volatile
33 Vietnam 58 2024 up 383.3% volatile
35 Singapore 57 2024 up 14.0% volatile
36 Portugal 56 2024 up 229.4% volatile
37 South Africa 54 2024 up 68.8% volatile
38 Finland 51 2024 down 3.8% volatile
39 Czechia 50 2024 up 78.6% volatile
40 Malaysia 44 2024 up 91.3% volatile
41 Chile 43 2024 up 290.9% volatile
42 Slovenia 35 2024 up 84.2% volatile
43 Colombia 33 2024 up 153.8% volatile
44 Iraq 32 2024 up 3,100.0% volatile
44 Kenya 32 2024 up 14.3% volatile
46 Iran 31 2024 down 20.5% rising
46 Nepal 31 2024 up 933.3% volatile
48 Hungary 28 2024 up 75.0% volatile
48 Uganda 28 2024 up 55.6% volatile
50 Argentina 23 2024 down 4.2% volatile
50 Jordan 23 2024 up 187.5% volatile
50 Romania 23 2024 up 109.1% volatile
53 United Arab Emirates 22 2024 up 2,100.0% volatile
54 Ireland 21 2024 up 23.5% volatile
55 Bangladesh 20 2024 up 11.1% volatile
55 New Zealand 20 2024 up 53.8% volatile
55 Serbia 20 2024 up 400.0% volatile
58 Lebanon 19 2024 up 171.4% volatile
58 Philippines 19 2024 up 58.3% volatile
58 Tunisia 19 2024 up 58.3% volatile
61 Bulgaria 16 2024 up 23.1% volatile
62 Syria 15 2024 up 1,400.0% volatile
63 Burkina Faso 13 2024 up 62.5% volatile
63 Kazakhstan 13 2024 up 550.0% volatile
63 Nigeria 13 2024 up 550.0% volatile
66 Ethiopia 12 2024 up 100.0% volatile
66 Tanzania 12 2024 up 33.3% volatile
68 Croatia 11 2024 up 83.3% volatile
68 Malawi 11 2024 up 22.2% volatile
70 Ghana 9 2024 up 125.0% volatile
70 Qatar 9 2024 up 125.0% volatile
70 Rwanda 9 2024 up 50.0% volatile
70 Ukraine 9 2024 up 80.0% volatile
70 Zambia 9 2024 down 10.0% volatile
75 Democratic Republic of Congo 8 2024 up 166.7% volatile
75 Cyprus 8 2024 up 300.0% volatile
75 Kuwait 8 2024 up 700.0% volatile
75 Slovakia 8 2024 up 300.0% rising
79 Bosnia and Herzegovina 7 2024 up 250.0% volatile
79 Cameroon 7 2024 up 250.0% volatile
79 Mali 7 2024 up 75.0% volatile
79 Peru 7 2024 up 75.0% rising
79 Palestine 7 2024 up 600.0% volatile
84 Iceland 6 2024 up 200.0% volatile
85 Estonia 5 2024 up 25.0% volatile
85 Georgia 5 2024 up 150.0% volatile
85 Lithuania 5 2024 up 150.0% volatile
85 Latvia 5 2024 up 25.0% volatile
85 Morocco 5 2024 up 150.0% volatile
85 Oman 5 2024 up 400.0% rising
85 Sudan 5 2024 up 150.0% rising
92 Cambodia 4 2024 unchanged volatile
92 Mozambique 4 2024 unchanged volatile
92 El Salvador 4 2023 up 300.0% volatile
95 Armenia 3 2024 up 200.0% volatile
95 Cote d'Ivoire 3 2024 unchanged volatile
95 Costa Rica 3 2024 up 200.0% volatile
95 Ecuador 3 2024 up 50.0% volatile
95 Gambia 3 2022 up 200.0% volatile
95 Guatemala 3 2024 up 200.0% volatile
95 Kyrgyzstan 3 2023 up 200.0% volatile
95 Laos 3 2024 up 50.0% flat
95 Lesotho 3 2024 unchanged rising
95 Luxembourg 3 2024 up 200.0% rising
95 Papua New Guinea 3 2024 up 200.0% rising
95 Puerto Rico 3 2024 unchanged rising
95 Paraguay 3 2024 up 50.0% rising
108 Afghanistan 2 2022 up 100.0% flat
108 Azerbaijan 2 2022 up 100.0% rising
108 Bahrain 2 2024 up 100.0% volatile
108 Belarus 2 2023 down 33.3% volatile
108 Guinea 2 2023 unchanged rising
108 Honduras 2 2024 up 100.0% volatile
108 Liberia 2 2023 up 100.0% rising
108 Moldova 2 2024 unchanged volatile
108 North Macedonia 2 2023 up 100.0% rising
108 Myanmar 2 2024 unchanged volatile
108 Mongolia 2 2024 up 100.0% rising
108 Mauritius 2 2023 up 100.0% volatile
108 Niger 2 2024 down 33.3% rising
108 Nicaragua 2 2024 up 100.0% rising
108 Sierra Leone 2 2024 unchanged volatile
108 Trinidad and Tobago 2 2023 up 100.0% rising
108 Uruguay 2 2023 up 100.0% flat
108 Venezuela 2 2024 up 100.0% volatile
108 Zimbabwe 2 2024 up 100.0% volatile
127 Albania 1 2024 unchanged falling
127 Burundi 1 2022 unchanged volatile
127 Benin 1 2023 down 50.0% rising
127 Bolivia 1 2024 down 50.0% volatile
127 Botswana 1 2024 down 66.7% volatile
127 Congo 1 2021 down 50.0% volatile
127 Cuba 1 2024 unchanged volatile
127 Dominican Republic 1 2024 down 66.7% volatile
127 Algeria 1 2024 unchanged rising
127 Fiji 1 2024 unchanged falling
127 Gabon 1 2024 down 50.0% rising
127 Guinea-Bissau 1 2024 down 50.0% rising
127 Haiti 1 2024 unchanged volatile
127 Jamaica 1 2022 down 50.0% falling
127 Sri Lanka 1 2024 down 50.0% volatile
127 Monaco 1 2024 down 50.0% volatile
127 Madagascar 1 2024 unchanged falling
127 Malta 1 2024 unchanged rising
127 Panama 1 2024 down 75.0% volatile
127 Senegal 1 2024 down 66.7% volatile
127 Eswatini 1 2024 unchanged falling
127 Chad 1 2022 unchanged flat
127 Uzbekistan 1 2024 unchanged flat
127 French Guiana 1 2024 unchanged volatile
127 Guadeloupe 1 2024 down 50.0% falling
127 Martinique 1 2024 down 50.0% rising
127 Reunion 1 2024 down 50.0% volatile

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Number of clinical trials by country. Statizoid, drawing on Our World in Data. Retrieved 14 November 2026, from https://reference.statizoid.com/stat/number-of-clinical-trials/

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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