Purpose: Gene fusions are established oncogenic drivers and emerging therapeutic targets in advanced colorectal cancer. This study aimed to detail the frequencies and clinicopathological features of gene fusions in colorectal cancer using a circulating tumor DNA assay.
Methods: Circulating tumor DNA samples in patients with advanced colorectal cancer were analyzed at 4,581 unique time points using a validated plasma-based multigene assay that includes assessment of fusions in , , , , , and Associations between fusions and clinicopathological features were measured using Fisher's exact test.
Purpose: PARP inhibitors (PARPi) are efficacious in multiple cancers harboring germline (and possibly somatic) mutations. Acquired reversions can restore function, causing resistance to PARPi and/or platinum-based chemotherapy. The optimal method of identifying patients with germline, somatic, and/or reversion mutations in has not been established.
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