This is data on the 15 feasibility trials found in a systematic review of randomised controlled trials (RCTs) accessing routinely collected health data (RCHD) in the UK. The systematic review, published in 20201, considered successful applications for RCHD (such as NHS Digital) detailed in publicly accessible release registers. The release registers were searched in January to May 2019 and data was extracted on every RCT receiving data between 2013 and 2018. This dataset comprises information on the 15 feasibility trials who received routine data during this period.

A paper detailing the methodology and findings has been published: Mirza A, Yorke-Edwards V, Lensen S et al. Why are feasibility studies accessing routinely collected health data? A systematic review. F1000Research 2021, 10:815

The dataset is provided as a .txt file, with columns separated by | [pipe/ vertical bar]. The PRISMA 2020 checklist2 for the submitted paper is provided as a .pdf file

1. Lensen S, Macnair A, Love SB, et al. Access to routinely collected health data for clinical trials - review of successful data requests to UK registries. Trials 2020; 21. doi: 10.1186/s13063-020-04329-8 2. Page MJ, McKenzie JE, Bossuyt PM, Boutron I, Hoffmann TC, Mulrow CD, et al. The PRISMA 2020 statement: an updated guideline for reporting systematic reviews. BMJ 2021;372:n71. doi: 10.1136/bmj.n71In Version 2 the PRISMA checklist was added: the dataset remains unchanged. In Version 3 the description and references were updated to include the publication associated with this dataset.