Trials

Featured collection: Sample size calculations and specifying the target difference for randomized trials

This new article collection includes the DELTA2 guidance on the specification and reporting of the target difference and the sample size calculation for a RCT, along with articles on how it was developed, previous guidance on this topic, a review of practice in a cohort of RCTs and a commentary on the value of the new guidance.

Call for papers: Big data for randomized trials

We are pleased to announce that Trials is accepting submissions for a new thematic series on using big data for randomized trials. Edited by Dr Lars Hemkens (University Hospital Basel, Switzerland), this series will consider articles that report on what is currently known about using big data or routinely collected data (such as electronic health records, registries or administrative databases) for randomized trials.

Call for papers: The future of pragmatic trials

We are pleased to announce that Trials is accepting submissions for a new thematic series on the future of pragmatic trials. Edited by Professor Marion Campbell (University of Aberdeen, UK) and Professor Sandra Eldridge (Queen Mary University of London, UK), this series will consider articles that report on any topic relevant to the role, definition and use of the pragmatic trial design.

About the Editors

Jeremy Grimshaw, Editor-in-Chief

Jeremy Grimshaw is a Senior Scientist in the Clinical Epidemiology Program at the Ottawa Health Research Institute and Professor of Medicine, University of Ottawa. He holds a Tier 1 Canadian Research Chair in health knowledge transfer and uptake. Professor Grimshaw’s research interests are in implementation and knowledge translation, quality improvement, complex interventions, systematic reviews, cluster randomized trials, quasi-experimental studies and behavioral theories (and their application to professional behavior).

Tianjing Li, Editor-in-Chief

Tianjing Li is an Associate Professor in the Department of Epidemiology at Johns Hopkins Bloomberg School of Public Health (JHBSPH). Dr Li was trained as a physician and subsequently earned her PhD in Epidemiology (Clinical Trials concentration) and MHS in Biostatistics from JHBSPH. The primary goal of Dr Li's research is to develop, evaluate, and disseminate efficient methods for comparing healthcare interventions and to provide trustworthy evidence for decision making. Her core research interests include methodologies for randomized controlled trials, systematic reviews, network meta-analysis, comparative effectiveness research, and patient-centered outcomes research. Dr Li serves as the Associate Director for Cochrane United States and the Director for Research for Cochrane Eyes and Vision US Project.

Shaun Treweek, Editor-in-Chief

Shaun is Professor of Health Services Research in the Health Services Research Unit at the University of Aberdeen, UK.  Prof Treweek’s research interests are mainly in efficient trial design, particularly pragmatic trial design, improved recruitment and retention interventions for trials, the design of studies to generate trial process evidence and the effective presentation of research evidence.  He is leading an initiative called Trial Forge (http://www.trialforge.org) that aims to be more systematic about how we generate and use research evidence in making trial design, conduct, analysis and reporting decisions. 

Celebrating Trials' 10th anniversary

2016 marked the 10th anniversary of Trials and to coincide with publication of our 3000th article, we put together a page to celebrate the great milestones of the journal, including a timeline, opinions from those in the field, links to our most popular articles, and more.