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• W2566133031 abstract "Introduction: Molecular characterization of tumors is critical in the modern treatment of NSCLC. Epidermal Growth Factor Receptor (EGFR) and p53 are commonly mutated genes in NSCLC with independent prognostic implications, but the significance of the co-existence of these mutations inpatients (pts) with Stage IV NSCLC is not well established. Herein, we describe the relationship of EGFR and TP53 mutations (MT) in pts with Stage 4 or recurrent NSCLC and their correlation with pt demographics and therapeutic outcomes. Study Design: We conducted a retrospective analysis of Stage 4 and recurrent EGFR MT (+) NSCLC pts with TP53 MT status determined by the Gene Sequence Analysis Panel obtained at the Abramson Cancer Center between 6/1/2012 and 2/1/2014. Overall survival (OS) and progression-free survival (PFS) were estimated for the TP53 MT (+) and wild type (WT) cohorts from the date of diagnosis. Results: Thirty-six EGFR (+) pts were identified, of whom 26 (72%) were TP53 MT (+). Pt characteristics were similar between cohorts, except for a higher rate of bone metastasis in pts with p53 WT (p = 0.07, Table 1). Median potential follow-up for OS was 15.1 mos. 60% of patients in TP53 WT group received TKI compared to 69% in TP53 MT (+). Of the 36 pts, 9 (25%). have died. A trend towards shorter median OS was seen in pts with p53 MT. (p = 0.08). PFS did not correlate with p53 MT status (p = 0.53). Conclusion: Coexistence of p53 MT and EGFR MT may be associated with shorter survival. Larger sample size and longer clinical follow up will be necessary to determine if these differences are statistically significant and whether TP53 MT status is an independent prognostic factor in EGFR MT NSCLC. Citation Format: Saman Ahmed, Charu Aggarwal, Rosemarie Mick, Joshua Bauml, Roger Cohen, Stephan Kadauke, Trisha Sterlicchi, Tracey L. Evans, John C. Kucharczuk, Charu Desphande, Jennifer J D Morrissette, Robert Daber, Corey J. Langer. Association of TP53 mutation status with clinical outcomes in patients with EGFR mutated non-small cell lung cancer (NSCLC). [abstract]. In: Proceedings of the 106th Annual Meeting of the American Association for Cancer Research; 2015 Apr 18-22; Philadelphia, PA. Philadelphia (PA): AACR; Cancer Res 2015;75(15 Suppl):Abstract nr 4333. doi:10.1158/1538-7445.AM2015-4333" @default.
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• W2566133031 date "2015-08-01" @default.
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• W2566133031 title "Abstract 4333: Association of TP53 mutation status with clinical outcomes in patients with EGFR mutated non-small cell lung cancer (NSCLC)" @default.
• W2566133031 doi "https://doi.org/10.1158/1538-7445.am2015-4333" @default.
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