141PA comprehensive pan-cancer study of FGFR aberrations in Chinese cancer patients

This study investigated the prevalence and the distribution of FGFR aberrations in Chinese cancer patients.MethodsWe screened genomic profiling results of plasma or tissue samples from 10,582 patients spanning 16 cancer types: lung, breast, gastric, hepatobiliary, pancreatic, soft tissue sarcoma, esophageal, ovarian, colorectal, head and neck, renal, endometrial, osteogenic sarcoma, cervical, melanoma and lymphoma.ResultsOf the 10,582 patients screened, we observed 745 patients with FGFR aberrations, revealing an overall prevalence of 7.03%. Approximately, 3.78% harbored FGFR amplification, 2.73% had other mutations and 0.53% had fusions. A majority (56.78%) of patients had FGFR1 aberrations, followed by 17.72%, 14.43% and 2.82% with FGFR3, FGFR2 and FGFR4 aberrations, respectively. Furthermore, 8.46% of patients with aberrations in more than 1 FGFR gene. The most common type of aberrations was amplification (53.69%), followed by other mutations (38.79%) and fusions (5.64%). Concurrent FGFR fusion and amplification occurred in 1.88% patients. Of the 16 cancer types, except for head and neck cancer, osteogenic sarcoma, renal carcinoma, and lymphoma, all other cancer types had FGFR aberrations detected with colorectal cancer (31.03%) having the highest prevalence. Other relatively commonly affected cancers included: gastric cancer (16.78%), breast cancer (14.27%) and esophageal cancer (12.68%). FGFR1 amplification was the most common genetic alteration in CRC, breast cancer and...
Source: Annals of Oncology - Category: Cancer & Oncology Source Type: research

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