Trials is an open access peer-reviewed medical journal covering performance and outcomes of randomized controlled trials. The journal is published by BioMed Central; the editors-in-chief are Jeremy Grimshaw (Ottawa Health Research Institute), Peter Jüni (University of Toronto), Tianjing Li (Johns Hopkins Bloomberg School of Public Health), and Shaun Treweek (University of Aberdeen). It also publishes study protocols.

Abstracting and indexing

The journal is abstracted and indexed in: • Chemical Abstracts Service • Current Contents • Embase • MEDLINE/PubMed • Science Citation Index Expanded • Scopus According to the Journal Citation Reports, the journal has a 2018 impact factor of 1.975.