Resources to support good quality research in cluster randomised trials and stepped wedge designs
This website is designed to support those conducting cluster randomised trials and stepped wedge designs and those carrying out methodological research on these designs. Our aim is to promote good quality research and so we encourage the use of existing guidelines and methods.
The idea for the website emerged from a meeting on current developments in cluster randomised trials and stepped wedge designs held in November 2016. The website is maintained by Claire Chan, Sandra Eldridge, Karla Hemming, Clémence Leyrat, James Martin, Mélanie Prague, Jennifer Thompson and Liz Turner. More details are on our who we are page. Special thanks to the following for helpful comments during development and/or reviewing the site before it went live: Dr. Agnès Caille (University of Tours), Prof. Bruno Giraudeau (University of Tours), Prof. Richard Hooper (Queen Mary University of London), Sally Kerry (Queen Mary University of London), and Dr. Michael Grayling (University of Cambridge).
We aim to keep the site updated with the latest publications, software, discussions and events related to clustered designs. Visit our resources for CRTs and stepped wedge CRTs and noticeboard pages to find out more. Please note that we cannot claim this to be an exhaustive list of resources.
The initial design for the site was funded by NIHR through Sandra Eldridge’s NIHR Senior Investigator Award.
We want this website to be useful for all those working on cluster randomised trials. Please contact us with feedback, items for our noticeboard, or suggestions for resources to add.
05 November 2020 Planning to use a cluster-level analysis for your CRT? Consider using the new clan Stata command recently released on SSC. The command calculates intervention effect estimates adjusting for individual and cluster level covariates and strata used in...
05 November 2020 This article explores how to use GEE in SW-CRTs with a small number of clusters. We find that GEE provide a robust method of analysis and some small sample corrections work well with as few as 12 clusters. Follow this link to read the paper
A new website devoted to explaining stepped wedge trials in a non-technical fashion has been published
Exciting 18 months post-doc position available in Rours, France to work on time-to-event outcomes in cluster randomized trials.
The Pragmatic Clinical Trials Unit at QMUL and Centre for Statistical Methodology at LSHTM are pleased to present a joint webinar: Challenges and applications of Cluster Randomised and Stepped Wedge Trials in a pandemic Date: Tuesday 4 May, 2021 Time: 3.00 pm – 5.00...
Online short course on the design and analysis of cluster randomised trials and stepped wedge trials (28 June to 2 July 2021)
Online short course on the design and analysis of cluster randomised trials and stepped wedge trials 28 June to 2 July 2021 Cluster randomised trials and stepped wedge trials are increasingly used to evaluate health and social interventions. They require specific...
Save the Date: May 4th, QMUL webinar on theme – “What use are cluster randomised trials and stepped wedge designs in the COVID pandemic?”. This will consist of a series of presentations looking at the impact of the Covid pandemic on the conduct of cluster trials and how cluster / stepped wedge designed trials may be adapted to collect data during a pandemic. Please look out for further notices for more details.
London 12-13 November 2019
This annual meeting consists of a series of short talks, poster presentations and discussions and workshops…
London 8-12 July 2019
This course will provide a clear understanding of the design and analysis of cluster randomised trials and stepped wedge trials…
London 29th April to 3rd May 2019
This course is based on the book ‘A Practical Guide to Cluster Randomised Trials in Health Services Research’ by Sandra Eldridge and Sally Kerry…