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PubMed | Fatebenefratelli S Pietro Hospital
Type: Journal Article | Journal: Journal of clinical oncology : official journal of the American Society of Clinical Oncology | Year: 2016

13507 Background: Combined pre-operative RT and CT increase the possibility for conservative surgery in locally advanced rectal cancer. Most clinical trials show that responding patients could obtain a reduction of local relapse and an improvement of overall survival, especially when a complete pathological response is obtained (pCR 9-29%). The aim of our study was to determine the activity of RT concomitant to oxaliplatin (OHP) in combination with c.i. 5-fluorouracil (5FU).Primary endpoint was pCR. Sample size was defined according to Simon Two-Stage phase II design (planned sample size: 29 evaluable patients). From May 2002 to November 2005, 33 patients (15 males, 18 females) were enrolled: median age was 64 years (range 21-74); clinical stage was cT3/cT4 cN0 or cTAll patients were evaluable for pathological response. Sphincter preservation was obtained in 30 patients (=90.9%), a clinical down-staging in 30 patients (=90.9%). Overall, 12 patients (=36.4%) experienced a pCR: 9 of 21 patients (=42.8%) who received HRT obtained a pCR; 3 of 12 patients (=25%) who received CRT showed a pCR. Treatment was well tolerated. No G3-4 toxicity was observed.The results of our study are promising in terms of sphincter preservation, clinical down-staging and pCR. Moreover in this trial patients who received HRT obtained an encouraging outcome. No significant financial relationships to disclose.

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