000 02600na a2200229 4500
003 H12O
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008 130622s2010 xxx||||| |||| 00| 0 eng d
040 _cH12O
041 _aeng
100 _aHitt Sabag, Ricardo
_91474
_eOncología Médica
245 0 0 _aEvaluation of EGFR gene copy number as a predictive biomarker for the efficacy of cetuximab in combination with chemotherapy in the first-line treatment of recurrent and/or metastatic squamous cell carcinoma of the head and neck: EXTREME study
_h[artículo]
260 _bAnnals of Oncology,
_c2011
300 _a22(5):1078-1087.
500 _aFormato Vancouver: Licitra L, Mesia R, Rivera F, Remenár E, Hitt R, Erfán J, et al. Evaluation of EGFR gene copy number as a predictive biomarker for the efficacy of cetuximab in combination with chemotherapy in the first-line treatment of recurrent and/or metastatic squamous cell carcinoma of the head and neck: EXTREME study. Ann Oncol. 2011;22(5):1078-87.
501 _aPMID: 21048039
504 _aContiene 32 referencias
520 _aBACKGROUND: The phase III EXTREME study demonstrated that combining cetuximab with platinum/5-fluorouracil (5-FU) significantly improved overall survival in the first-line treatment of patients with recurrent and/or metastatic squamous cell carcinoma of the head and neck (R/M SCCHN) compared with platinum/5-FU alone. The aim of this investigation was to evaluate elevated tumor EGFR gene copy number as a predictive biomarker in EXTREME study patients. PATIENTS AND METHODS: Dual-color FISH was used to determine absolute and relative EGFR copy number. Models of differing stringencies were used to score and investigate whether increased copy number was predictive for the activity of cetuximab plus platinum/5-FU. RESULTS: Tumors from 312 of 442 patients (71%) were evaluable by FISH and met the criteria for statistical analysis. A moderate increase in EGFR copy number was common, with high-level amplification of the gene occurring in a small fraction of tumors (∼11%). Considering each of the models tested, no association of EGFR copy number with overall survival, progression-free survival or best overall response was found for patients treated with cetuximab plus platinum/5-FU. CONCLUSION: Tumor EGFR copy number is not a predictive biomarker for the efficacy of cetuximab plus platinum/5-FU as first-line therapy for patients with R/M SCCHN.
710 _9303
_aServicio de Oncología Médica
856 _uhttp://pc-h12o-es.m-hdoct.a17.csinet.es/pdf/pc/8/pc8023.pdf
_ySolicitar documento
942 _n0
_2ddc
_cART
999 _c8023
_d8023