Leung, Elaine Y.L., Robbins, Helen L., Zaman, Shafquat, Lal, Neeraj, Morton, Dion, Dew, Lisa, Williams, Anthony P., Wallis, Yvonne, Bell, Jennie, Raghavan, Manoj, Middleton, Gary and Beggs, Andrew D. (2024) The potential clinical utility of Whole Genome Sequencing for patients with cancer: evaluation of a regional implementation of the 100,000 Genomes Project. British Journal of Cancer, 131 (11), 1805-1813. (doi:10.1038/s41416-024-02890-6).
Abstract
Background: the 100,000 Genomes Project established infrastructure for Whole Genome Sequencing (WGS) in the United Kingdom.
Methods: a retrospective study of cancer patients recruited to the 100,000 Genomes Project by the West Midlands Genomics Medicine Centre, evaluating clinical relevance of results.
Results: after excluding samples with no sequencing data (1678/4851; 34.6%), 3166 sample sets (germline and somatic) from 3067 participants were sequenced. Results of 1256 participants (41.0%) were interpreted (excluding participants who died (308/3067; 10.0%) or were clinically excluded (1503/3067; 49.0%)). Of these, 323 (25.7%) had no variants in genes which may alter management (Domain 1 genes). Of the remaining 933 participants, 552 (59.2%) had clinical recommendations made (718 recommendations in total). These included therapeutic recommendations (377/933; 40.4%), such as clinical trial, unlicensed or licensed therapies or high TMB recommendations, and germline variants warranting clinical genetics review (85/933; 9.1%). At the last follow up, 20.2% of all recommendations were followed (145/718). However, only a small proportion of therapeutic recommendations were followed (5.1%, 25/491).
Conclusions: the 100,000 Genomes Project has established infrastructure and regional experience to support personalised cancer care. The majority of those with successful sequencing had actionable variants. Ensuring GTAB recommendations are followed will maximise benefits for patients.
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