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Published in: Intensive Care Medicine 10/2018

01-10-2018 | Systematic Review

Industry sponsorship and research outcome: systematic review with meta-analysis

Authors: Andreas Lundh, Joel Lexchin, Barbara Mintzes, Jeppe B. Schroll, Lisa Bero

Published in: Intensive Care Medicine | Issue 10/2018

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Abstract

Purpose

Clinical research is widely sponsored by drug and device companies. We investigated whether industry sponsored drug and device studies have more favorable outcomes and differ in risk of bias, compared with studies having other sources of sponsorship. This review is an update of a previous Cochrane review.

Methods

In this update we searched MEDLINE and Embase (2010 to February 2015), Cochrane Methodology Register (2015, Issue 2) and Web of Science (June 2015). We included empirical studies that quantitatively compared primary research studies of drugs or medical devices sponsored by industry with studies with other sources of sponsorship. Two assessors included papers, extracted data and assessed risk of bias. Outcomes included favorable results, favorable conclusions, effect size, risk of bias and whether conclusions agreed with results.

Results

We included 27 additional papers in this update (review now includes 75 papers). Industry sponsored studies more often had favorable efficacy results, RR: 1.27 (95% CI 1.17–1.37), no difference in harms results RR: 1.37 (95% CI 0.64–2.93) and more often favorable conclusions RR: 1.34 (95% CI 1.19–1.51) compared with non-industry sponsored studies. Nineteen papers reported on sponsorship and efficacy effect size, but could not be pooled due to differences in reporting of data and heterogeneity of results. Comparing industry and non-industry sponsored studies, we did not find a difference in risk of bias from sequence generation, allocation concealment, follow-up and selective outcome reporting. However, industry sponsored studies more often had low risk of bias from blinding, RR: 1.25 (95% CI 1.05–1.50), compared with non-industry sponsored studies.

Conclusions

Drug and device studies sponsored by manufacturing companies have more favorable efficacy results and conclusions than studies sponsored by other sources.
Appendix
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Metadata
Title
Industry sponsorship and research outcome: systematic review with meta-analysis
Authors
Andreas Lundh
Joel Lexchin
Barbara Mintzes
Jeppe B. Schroll
Lisa Bero
Publication date
01-10-2018
Publisher
Springer Berlin Heidelberg
Published in
Intensive Care Medicine / Issue 10/2018
Print ISSN: 0342-4642
Electronic ISSN: 1432-1238
DOI
https://doi.org/10.1007/s00134-018-5293-7

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