Scimago Journal & Country Rank

Clinical Trials

Country United Kingdom  - SIR icon SIR Ranking of United Kingdom
H Index
Subject Area and CategoryMedicine
Medicine (miscellaneous)

Pharmacology, Toxicology and Pharmaceutics
PublisherSAGE Publications Ltd
Publication typeJournals
ISSN17407753, 17407745
Scope The journal is devoted to topics of generalizable interest to the clinical trials community in general and to clinical trials methodology in particular. Topics that fall within the Aims and Scope of Clinical Trials include data management, trial logistics, design and conduct of trials, statistical methods, impact of trials on practice and policy, ethics, law and regulation, synthesis and evidence evaluation, history, education and training, patient-related issues, decision analysis, and commentaries on current or controversial issues. The journal does not publish articles that essentially reproduce the protocol for an individual clinical trial. Articles that simply report the results of a completed clinical trial are also not considered.


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The set of journals have been ranked according to their SJR and divided into four equal groups, four quartiles. Q1 (green) comprises the quarter of the journals with the highest values, Q2 (yellow) the second highest values, Q3 (orange) the third highest values and Q4 (red) the lowest values.

Medicine (miscellaneous)2005Q1
Medicine (miscellaneous)2006Q1
Medicine (miscellaneous)2007Q1
Medicine (miscellaneous)2008Q1
Medicine (miscellaneous)2009Q1
Medicine (miscellaneous)2010Q1
Medicine (miscellaneous)2011Q1
Medicine (miscellaneous)2012Q1
Medicine (miscellaneous)2013Q1
Medicine (miscellaneous)2014Q1
Medicine (miscellaneous)2015Q1
Medicine (miscellaneous)2016Q1
Medicine (miscellaneous)2017Q1
Medicine (miscellaneous)2018Q1
Medicine (miscellaneous)2019Q1

The SJR is a size-independent prestige indicator that ranks journals by their 'average prestige per article'. It is based on the idea that 'all citations are not created equal'. SJR is a measure of scientific influence of journals that accounts for both the number of citations received by a journal and the importance or prestige of the journals where such citations come from It measures the scientific influence of the average article in a journal, it expresses how central to the global scientific discussion an average article of the journal is.

Citations per document

This indicator counts the number of citations received by documents from a journal and divides them by the total number of documents published in that journal. The chart shows the evolution of the average number of times documents published in a journal in the past two, three and four years have been cited in the current year. The two years line is equivalent to journal impact factor ™ (Thomson Reuters) metric.

Cites per documentYearValue
Cites / Doc. (4 years)20040.000
Cites / Doc. (4 years)20050.873
Cites / Doc. (4 years)20061.288
Cites / Doc. (4 years)20071.772
Cites / Doc. (4 years)20082.149
Cites / Doc. (4 years)20092.333
Cites / Doc. (4 years)20102.726
Cites / Doc. (4 years)20112.807
Cites / Doc. (4 years)20122.779
Cites / Doc. (4 years)20132.516
Cites / Doc. (4 years)20142.248
Cites / Doc. (4 years)20152.308
Cites / Doc. (4 years)20162.471
Cites / Doc. (4 years)20172.564
Cites / Doc. (4 years)20182.579
Cites / Doc. (4 years)20192.878
Cites / Doc. (3 years)20040.000
Cites / Doc. (3 years)20050.873
Cites / Doc. (3 years)20061.288
Cites / Doc. (3 years)20071.772
Cites / Doc. (3 years)20082.106
Cites / Doc. (3 years)20092.200
Cites / Doc. (3 years)20102.719
Cites / Doc. (3 years)20112.876
Cites / Doc. (3 years)20122.538
Cites / Doc. (3 years)20132.391
Cites / Doc. (3 years)20142.099
Cites / Doc. (3 years)20152.325
Cites / Doc. (3 years)20162.436
Cites / Doc. (3 years)20172.895
Cites / Doc. (3 years)20182.349
Cites / Doc. (3 years)20192.769
Cites / Doc. (2 years)20040.000
Cites / Doc. (2 years)20050.873
Cites / Doc. (2 years)20061.288
Cites / Doc. (2 years)20071.785
Cites / Doc. (2 years)20081.711
Cites / Doc. (2 years)20092.123
Cites / Doc. (2 years)20102.870
Cites / Doc. (2 years)20112.675
Cites / Doc. (2 years)20122.304
Cites / Doc. (2 years)20131.869
Cites / Doc. (2 years)20142.192
Cites / Doc. (2 years)20152.216
Cites / Doc. (2 years)20162.844
Cites / Doc. (2 years)20172.763
Cites / Doc. (2 years)20182.264
Cites / Doc. (2 years)20192.410
Total Cites 

Evolution of the total number of citations and journal's self-citations received by a journal's published documents during the three previous years.
Journal Self-citation is defined as the number of citation from a journal citing article to articles published by the same journal.

Self Cites20040
Self Cites200510
Self Cites200615
Self Cites200712
Self Cites200817
Self Cites200917
Self Cites201032
Self Cites201117
Self Cites201248
Self Cites201345
Self Cites201427
Self Cites201525
Self Cites201634
Self Cites201738
Self Cites201838
Self Cites201952
Total Cites20040
Total Cites200548
Total Cites2006152
Total Cites2007287
Total Cites2008337
Total Cites2009330
Total Cites2010416
Total Cites2011489
Total Cites2012462
Total Cites2013495
Total Cites2014487
Total Cites2015544
Total Cites2016575
Total Cites2017634
Total Cites2018512
Total Cites2019587
External Cites per Doc 
Cites per Doc

Evolution of the number of total citation per document and external citation per document (i.e. journal self-citations removed) received by a journal's published documents during the three previous years. External citations are calculated by subtracting the number of self-citations from the total number of citations received by the journal’s documents.

External Cites per document20040
External Cites per document20050.691
External Cites per document20061.161
External Cites per document20071.698
External Cites per document20082.000
External Cites per document20092.087
External Cites per document20102.510
External Cites per document20112.776
External Cites per document20122.275
External Cites per document20132.174
External Cites per document20141.983
External Cites per document20152.218
External Cites per document20162.292
External Cites per document20172.721
External Cites per document20182.174
External Cites per document20192.524
Cites per document20040.000
Cites per document20050.873
Cites per document20061.288
Cites per document20071.772
Cites per document20082.106
Cites per document20092.200
Cites per document20102.719
Cites per document20112.876
Cites per document20122.538
Cites per document20132.391
Cites per document20142.099
Cites per document20152.325
Cites per document20162.436
Cites per document20172.895
Cites per document20182.349
Cites per document20192.769
% International Collaboration

International Collaboration accounts for the articles that have been produced by researchers from several countries. The chart shows the ratio of a journal's documents signed by researchers from more than one country; that is including more than one country address.

YearInternational Collaboration
Citable documents 
Non-citable documents

Not every article in a journal is considered primary research and therefore "citable", this chart shows the ratio of a journal's articles including substantial research (research articles, conference papers and reviews) in three year windows vs. those documents other than research articles, reviews and conference papers.

Non-citable documents20040
Non-citable documents20055
Non-citable documents200614
Non-citable documents200717
Non-citable documents200820
Non-citable documents200926
Non-citable documents201045
Non-citable documents201143
Non-citable documents201249
Non-citable documents201344
Non-citable documents201453
Non-citable documents201553
Non-citable documents201661
Non-citable documents201761
Non-citable documents201859
Non-citable documents201946
Citable documents20040
Citable documents200555
Citable documents2006118
Citable documents2007162
Citable documents2008160
Citable documents2009150
Citable documents2010153
Citable documents2011170
Citable documents2012182
Citable documents2013207
Citable documents2014232
Citable documents2015234
Citable documents2016236
Citable documents2017219
Citable documents2018218
Citable documents2019212
Cited documents 
Uncited documents

Ratio of a journal's items, grouped in three years windows, that have been cited at least once vs. those not cited during the following year.

Uncited documents20040
Uncited documents200538
Uncited documents200665
Uncited documents200783
Uncited documents200877
Uncited documents200966
Uncited documents201067
Uncited documents201166
Uncited documents201288
Uncited documents201394
Uncited documents2014119
Uncited documents2015106
Uncited documents2016110
Uncited documents2017100
Uncited documents2018110
Uncited documents201982
Cited documents20040
Cited documents200522
Cited documents200667
Cited documents200796
Cited documents2008103
Cited documents2009110
Cited documents2010131
Cited documents2011147
Cited documents2012143
Cited documents2013157
Cited documents2014166
Cited documents2015181
Cited documents2016187
Cited documents2017180
Cited documents2018167
Cited documents2019176
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