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Half of drug trials with results on ClinicalTrials.gov are not published in journals

BMJ 2013; 347 doi: https://doi.org/10.1136/bmj.f7219 (Published 03 December 2013) Cite this as: BMJ 2013;347:f7219

Article usage

Article metrics provide readers and authors with an indication of how often a specific article has been accessed month by month. It counts three formats - abstract/extract, full text and pdf. The page is updated each day.

Usage statistics: January 2018 to October 2024

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AbstractFullPdf
Jan 2018800
Feb 20181010
Mar 2018601
Apr 2018710
May 2018531
Jun 20181320
Jul 2018300
Aug 2018800
Sep 2018221
Oct 2018600
Nov 2018930
Dec 2018121
Jan 2019510
Feb 2019100
Mar 2019420
Apr 2019520
May 2019500
Jul 20191010
Aug 2019200
Oct 20191600
Nov 2019700
Dec 2019200
Jan 2020400
Feb 20205480
Mar 20201010
May 20201800
Jun 2020300
Jul 20204211
Aug 20204030
Sep 2020410
Oct 20202310
Nov 2020900
Dec 20201900
Jan 20214332
Feb 2021101
Mar 20211800
Apr 2021800
May 2021800
Jun 20211700
Jul 2021600
Aug 20213400
Sep 2021621
Oct 20211300
Nov 20211400
Dec 20211400
Jan 20221000
Feb 20221301
Mar 2022500
Apr 20221121
May 20221710
Jun 20222010
Jul 2022100
Aug 20221300
Sep 20221020
Oct 20222410
Nov 2022230
Dec 2022500
Jan 2023600
Feb 20231310
Apr 20232100
May 2023511
Jun 2023700
Jul 2023510
Aug 2023500
Sep 20233102
Oct 2023300
Nov 20231100
Dec 20231020
Jan 20242720
Feb 2024300
Mar 2024310
Apr 2024500
May 20241300
Jun 20243311
Jul 20241510
Aug 20242400
Sep 20246500
Oct 20242300
Total10026015