Open Access
Open access

Trials

Springer Nature
Springer Nature
ISSN: 17456215
SCImago
Q2
WOS
Q3
Impact factor
2
SJR
0.812
CiteScore
3.8
Categories
Medicine (miscellaneous)
Pharmacology (medical)
Areas
Medicine
Years of issue
2006-2025
journal names
Trials
Publications
10 843
Citations
136 166
h-index
101
Top-3 citing journals
Trials
Trials (6048 citations)
BMJ Open
BMJ Open (2958 citations)
Top-3 organizations
University of Oxford
University of Oxford (548 publications)
University College London
University College London (424 publications)
King's College London
King's College London (376 publications)
Top-3 countries
United Kingdom (3572 publications)
USA (1893 publications)
China (1317 publications)

Most cited in 5 years

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Publishing countries

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United Kingdom, 3572, 32.94%
USA, 1893, 17.46%
China, 1317, 12.15%
Germany, 932, 8.6%
Netherlands, 869, 8.01%
Australia, 866, 7.99%
Canada, 772, 7.12%
France, 469, 4.33%
Denmark, 443, 4.09%
Switzerland, 358, 3.3%
Spain, 355, 3.27%
Italy, 318, 2.93%
Sweden, 312, 2.88%
Brazil, 311, 2.87%
Belgium, 254, 2.34%
Republic of Korea, 238, 2.19%
Norway, 226, 2.08%
Ireland, 218, 2.01%
Iran, 184, 1.7%
South Africa, 181, 1.67%
India, 159, 1.47%
Japan, 159, 1.47%
Austria, 142, 1.31%
New Zealand, 127, 1.17%
Uganda, 95, 0.88%
Finland, 93, 0.86%
Singapore, 85, 0.78%
Kenya, 78, 0.72%
Poland, 68, 0.63%
Portugal, 53, 0.49%
Pakistan, 52, 0.48%
Saudi Arabia, 52, 0.48%
Tanzania, 52, 0.48%
Chile, 46, 0.42%
Thailand, 44, 0.41%
Malaysia, 42, 0.39%
Colombia, 38, 0.35%
Malawi, 38, 0.35%
Bangladesh, 36, 0.33%
Nigeria, 36, 0.33%
Ethiopia, 33, 0.3%
Greece, 31, 0.29%
Czech Republic, 31, 0.29%
Vietnam, 29, 0.27%
Sri Lanka, 29, 0.27%
Mexico, 27, 0.25%
Hungary, 26, 0.24%
Argentina, 25, 0.23%
Gambia, 25, 0.23%
Israel, 24, 0.22%
Zambia, 23, 0.21%
Zimbabwe, 19, 0.18%
Qatar, 19, 0.18%
Romania, 19, 0.18%
Nepal, 18, 0.17%
Peru, 18, 0.17%
Turkey, 18, 0.17%
Ghana, 17, 0.16%
Burkina Faso, 16, 0.15%
Russia, 15, 0.14%
Egypt, 15, 0.14%
Indonesia, 15, 0.14%
Cameroon, 14, 0.13%
Lebanon, 14, 0.13%
Croatia, 14, 0.13%
Cambodia, 11, 0.1%
Mozambique, 11, 0.1%
Estonia, 10, 0.09%
Democratic Republic of the Congo, 10, 0.09%
Lithuania, 10, 0.09%
Senegal, 10, 0.09%
Botswana, 9, 0.08%
Lesotho, 9, 0.08%
Mali, 9, 0.08%
Rwanda, 9, 0.08%
Iceland, 8, 0.07%
Madagascar, 8, 0.07%
Slovenia, 8, 0.07%
Côte d'Ivoire, 7, 0.06%
UAE, 7, 0.06%
Slovakia, 7, 0.06%
Philippines, 7, 0.06%
Kazakhstan, 6, 0.06%
Kuwait, 6, 0.06%
Luxembourg, 6, 0.06%
Niger, 5, 0.05%
Serbia, 5, 0.05%
Sierra Leone, 5, 0.05%
Tunisia, 5, 0.05%
Bahrain, 4, 0.04%
Benin, 4, 0.04%
Guinea, 4, 0.04%
Palestine, 4, 0.04%
Sudan, 4, 0.04%
Uruguay, 4, 0.04%
Guatemala, 3, 0.03%
Jordan, 3, 0.03%
Congo-Brazzaville, 3, 0.03%
Costa Rica, 3, 0.03%
Latvia, 3, 0.03%
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Publishing countries in 5 years

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United Kingdom, 1007, 21.06%
USA, 889, 18.59%
China, 790, 16.52%
Germany, 411, 8.59%
Australia, 371, 7.76%
Netherlands, 352, 7.36%
Canada, 278, 5.81%
France, 202, 4.22%
Denmark, 194, 4.06%
Spain, 183, 3.83%
Switzerland, 152, 3.18%
Sweden, 152, 3.18%
Iran, 144, 3.01%
Brazil, 134, 2.8%
Italy, 130, 2.72%
Belgium, 124, 2.59%
Ireland, 110, 2.3%
Norway, 108, 2.26%
India, 93, 1.94%
South Africa, 86, 1.8%
Republic of Korea, 74, 1.55%
Japan, 73, 1.53%
Austria, 72, 1.51%
New Zealand, 55, 1.15%
Finland, 47, 0.98%
Uganda, 44, 0.92%
Singapore, 43, 0.9%
Kenya, 34, 0.71%
Poland, 32, 0.67%
Malaysia, 30, 0.63%
Saudi Arabia, 30, 0.63%
Pakistan, 29, 0.61%
Chile, 27, 0.56%
Portugal, 25, 0.52%
Tanzania, 24, 0.5%
Bangladesh, 21, 0.44%
Thailand, 20, 0.42%
Nigeria, 19, 0.4%
Czech Republic, 17, 0.36%
Mexico, 16, 0.33%
Argentina, 15, 0.31%
Greece, 14, 0.29%
Ethiopia, 14, 0.29%
Russia, 13, 0.27%
Israel, 13, 0.27%
Gambia, 12, 0.25%
Zambia, 12, 0.25%
Sri Lanka, 12, 0.25%
Colombia, 11, 0.23%
Malawi, 11, 0.23%
Turkey, 11, 0.23%
Hungary, 10, 0.21%
Romania, 10, 0.21%
Burkina Faso, 9, 0.19%
Vietnam, 9, 0.19%
Egypt, 9, 0.19%
Lithuania, 9, 0.19%
Mozambique, 9, 0.19%
Nepal, 9, 0.19%
Mali, 8, 0.17%
Peru, 8, 0.17%
Estonia, 7, 0.15%
Qatar, 7, 0.15%
Zimbabwe, 6, 0.13%
Kuwait, 6, 0.13%
Lesotho, 6, 0.13%
Lebanon, 6, 0.13%
Madagascar, 6, 0.13%
UAE, 6, 0.13%
Ghana, 5, 0.1%
Indonesia, 5, 0.1%
Cameroon, 5, 0.1%
Democratic Republic of the Congo, 5, 0.1%
Côte d'Ivoire, 5, 0.1%
Rwanda, 5, 0.1%
Slovenia, 5, 0.1%
Sierra Leone, 5, 0.1%
Philippines, 5, 0.1%
Croatia, 5, 0.1%
Botswana, 4, 0.08%
Senegal, 4, 0.08%
Kazakhstan, 3, 0.06%
Iceland, 3, 0.06%
Cambodia, 3, 0.06%
Albania, 2, 0.04%
Bahrain, 2, 0.04%
Benin, 2, 0.04%
Guinea, 2, 0.04%
Latvia, 2, 0.04%
Liberia, 2, 0.04%
Liechtenstein, 2, 0.04%
Luxembourg, 2, 0.04%
Niger, 2, 0.04%
North Macedonia, 2, 0.04%
Syria, 2, 0.04%
Slovakia, 2, 0.04%
Sudan, 2, 0.04%
Tunisia, 2, 0.04%
Uruguay, 2, 0.04%
Eswatini, 2, 0.04%
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