Dataset of funding source, primary outcome changes and statistical significance of clinical trials registered on ClinicalTrials.org

All clinical studies classified as ‘interventional studies’ registered with ClinicalTrials.gov as of 20th November 2014 are shown. Probable funding source was derived using the algorithm previously described (3). A statistically significant primary outcome was defined as a trial having a P value less than 0.05. 1=yes; 0=no; blank=no info in all columns except “studyphase” and “sponsortype (0=public; 1=industry; 2=mixed). pom: primary outcome measure; sig: significance.