title: A phase II study of biweekly dose-intensified oral capecitabine plus irinotecan (bXELIRI) for patients with advanced or metastatic gastric cancer.
abstract: Capecitabine, a prodrug of 5-FU, has been reported to generate maximal tumour activity at tumour sites and/or to improve drug tolerability as compared with 5-FU infusion, and it has also been demonstrated to act synergistically with irinotecan against some solid cancers. A previous study concluded that dose-intensified biweekly capecitabine seems to be more effective at increasing both response rate and progression-free survival time than conventional dose and schedule of capecitabine in colon cancer. We conducted this study to ascertain the efficacy and toxicity of dose-intensified biweekly capecitabine and irinotecan combination chemotherapy in chemotherapy-naïve advanced or metastatic gastric cancer patients. Patients were treated with irinotecan 130 mg m(-2) intravenously for 90 min on days 1 and 15. Capecitabine at 3500 mg m(-2) day(-1), divided into two sessions per day, was administered for seven consecutive days from days 1 and 15, and followed by a 7-day drug-free period, respectively. Fifty-five eligible patients were enrolled in this study from November 2003 to April 2006. There were 22 women and 33 men: median patient age was 54 years (range: 27-81). A total of 200 treatment cycles were administered at a median number of four per patient (range: 1-9). Intent-to-treatment analysis showed that one patient achieved complete response (1.8%), 23 partial response (41.8%), 15 stable disease (27.3%), 10 progressive disease (18.2%) and 6 were non-evaluable (10.9%). The overall response rate was 43.6% (95% confidence interval: 30.2-56.9). The common grade 3-4 toxicities were neutropenia in 12 (21.8%), nausea/vomiting in 3 (5.4%) and diarrhea in 4 (7.2%) patients. Median time to progression was 5 months (range: 0.5-11 months), median survival duration was 11 months (range: 0.5-45 months) and median response duration was 6 months (range: 0.5-9 months). Biweekly dose-intensified capecitabine and irinotecan combination chemotherapy was active for the treatment of advanced or metastatic gastric cancers with a tolerable safety profile.
authors.affiliation: Section of Hemato-Oncology, Department of Internal Medicine, Korea University College of Medicine, 126-1, Anam-Dong 5Ga, Sungbuk-Gu, Seoul 136-705, Korea.
authors.forename: S C
authors.initials: SC
authors.lastname: Oh
authors.forename: H Y
authors.initials: HY
authors.lastname: Sur
authors.forename: H J
authors.initials: HJ
authors.lastname: Sung
authors.forename: I K
authors.initials: IK
authors.lastname: Choi
authors.forename: S S
authors.initials: SS
authors.lastname: Park
authors.forename: J H
authors.initials: JH
authors.lastname: Seo
authors.forename: Y T
authors.initials: YT
authors.lastname: Jeen
authors.forename: H J
authors.initials: HJ
authors.lastname: Chun
authors.forename: S W
authors.initials: SW
authors.lastname: Shin
authors.forename: Y J
authors.initials: YJ
authors.lastname: Mok
authors.forename: J S
authors.initials: JS
authors.lastname: Kim
authors.forename: Y H
authors.initials: YH
authors.lastname: Kim
mesh_terms: D000230:Adenocarcinoma / Q000188:drug therapy* / Q000473:pathology; D000284:Administration, Oral; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000971:Antineoplastic Combined Chemotherapy Protocols / Q000008:administration & dosage / Q000009:adverse effects / Q000627:therapeutic use*; D002166:Camptothecin / Q000008:administration & dosage / Q000009:adverse effects / Q000031:analogs & derivatives*; D000069287:Capecitabine; D003841:Deoxycytidine / Q000008:administration & dosage / Q000009:adverse effects / Q000031:analogs & derivatives*; D004305:Dose-Response Relationship, Drug; D004334:Drug Administration Schedule; D005260:Female; D005472:Fluorouracil / Q000008:administration & dosage / Q000009:adverse effects / Q000031:analogs & derivatives*; D006801:Humans; D000077146:Irinotecan; D008297:Male; D008875:Middle Aged; D009362:Neoplasm Metastasis; D013274:Stomach Neoplasms / Q000188:drug therapy* / Q000473:pathology; D016896:Treatment Outcome
chemical_list: D003841:Deoxycytidine; D000069287:Capecitabine; D000077146:Irinotecan; D005472:Fluorouracil; D002166:Camptothecin