Impact of sending email reminders of the legal requirement for posting results on cohort embedded pragmatic randomized controlled trial | The BMJ

peter.suber's bookmarks 2022-05-04


Abstract:  Objective To evaluate the impact of sending an email to responsible parties of completed trials that do not comply with the Food and Drug Administration Amendments Act 801 legislation, to remind them of the legal requirement to post results.

Design Cohort embedded pragmatic randomized controlled trial.

Setting Trials registered on

Participants 190 out of 379 trials randomly selected by computer generated randomization list to receive the intervention (personalized emails structured as a survey and sent by one of us to responsible parties of the trials, indirectly reminding them of the legal requirement and potential penalties for non-compliance).

Main outcome measures The primary outcome was the proportion of results posted on at three months. The secondary outcome was the proportion posted at six months. In a second step, two assessors blinded to the intervention group collected the date of the first results being received on A post hoc sensitivity analysis excluding trials wrongly included was performed.

Results Among 379 trials included, 190 were randomized to receive the email intervention. The rate of posting of results did not differ at three months between trials with or without the intervention: 36/190 (19%) v 24/189 (13%), respectively (relative risk 1.5, 95% confidence interval 0.9 to 2.4, P=0.096) but did at six months: 46/190 (24%) v 27/189 (14%), 1.7, 1.1 to 2.6, P=0.014. In the sensitivity analysis, which excluded 48/379 trials (13%), 26/190 (14%) and 22/189 (12%), respectively, results were significant at three months (relative risk 5.1, 1.1 to 22.9, P=0.02) and at six months (4.1, 1.3 to 10.6, P=0.001).

Conclusions Sending email reminders about the FDA’s legal requirement to post results at improved significantly the posting rate at six months but not at three months.



05/04/2022, 05:52

From feeds:

Open Access Tracking Project (OATP) » peter.suber's bookmarks


oa.compliance oa.clinical_trials oa.pharma oa.medicine oa.mandates oa.policies oa.policies oa.pharma

Date tagged:

05/04/2022, 09:52

Date published:

09/19/2014, 05:52