Abstract：
:EGFR overexpression in salivary gland carcinomas provides the rational for the investigation of anti-EGFR treatments in recurrent and/or metastatic salivary gland cancers (RMSGCs). The activity of cetuximab in terms of clinical benefit rate (CBR) defined as the occurrence of objective response (CR or PR) or stable disease (SD) for >or=6months was investigated. From April to December 2005, 30 patients [23 adenoid cystic carcinoma (ACC) and 7 non-ACC] were treated with cetuximab at 400mg/m(2)/week followed by 250mg/m(2)/week until progression, major toxicity or voluntary discontinuation. EGFR expression and gene status were retrospectively analyzed by immunocytochemistry and fluorescence in situ hybridization, respectively. A median of 14 courses of cetuximab (range 5-54) were infused. Skin toxicity was the main adverse event. Cetuximab provides a CBR in 50% (95% CL, 31 to 69%) of cases. None tumor sample showed EGFR gene amplification and an increased EGFR copy number was observed in 12% of samples, all ACC. Skin rash >or=G2, EGFR overexpression and EGFR copy number were not statistically correlated to CB. In RMSGCs further evaluations of EGFR targeting agents are advisable and should take place by appropriate tumor biological selection, differentiating ACC from non-ACC.
journal_name
Oral Oncoljournal_title
Oral oncologyauthors
Locati LD,Bossi P,Perrone F,Potepan P,Crippa F,Mariani L,Casieri P,Orsenigo M,Losa M,Bergamini C,Liberatoscioli C,Quattrone P,Calderone RG,Rinaldi G,Pilotti S,Licitra Ldoi
10.1016/j.oraloncology.2008.07.010subject
Has Abstractpub_date
2009-07-01 00:00:00pages
574-8issue
7eissn
1368-8375issn
1879-0593pii
S1368-8375(08)00232-7journal_volume
45pub_type
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