Acknowledgements
The authors thank Cancer Research UK for funding this study through their Catalyst Award (C569/A24991) and the UKALL clinical trial organisers and participants for providing the necessary material to conduct this study. The authors also thank the diagnostic services and patients who provided additional control material.
Disclosure statement
RG, JB, MSJ, and MSK are named as inventors, and CH is named as a contributor, on patents covering the markers used in the microsatellite instability assay used in this study (WO/2018/037231, published March 1, 2018; WO/2021/019197, published February 4 2021).
Data availability statement
Amplicon sequence data .fastq files are available from the European Nucleotide Archive using Study ID PRJEB51926.