Irinotecan/fluorouracil/leucovorin or the same regimen followed by oxaliplatin/fluorouracil/leucovorin in metastatic colorectal cancer. 2010

Haralabos P Kalofonos, and Pavlos Papakostas, and Thomas Makatsoris, and Demetrios Papamichael, and Georgia Vourli, and Ioannis Xanthakis, and Gerasimos Aravantinos, and Christos Papadimitriou, and George Pentheroudakis, and Ioannis Varthalitis, and George Samelis, and Kostas N Syrigos, and Nikolaos Xiros, and Michalis Stavropoulos, and Paris Kosmidis, and Christos Christodoulou, and Helen Linardou, and Maria Skondra, and Dimitrios Pectasides, and Theofanis Economopoulos, and George Fountzilas
Division of Oncology, Department of Medicine, University Hospital of Patras, Rion, Patras, Greece. kalofon@med.upatras.gr

BACKGROUND This study reports the long-term follow-up of patients with metastatic colorectal cancer (CRC) participating in a randomised phase II study that compared the efficacy and toxicity of the combination of irinotecan (IRI), fluorouracil (FU) with leucovorin (LV) (arm A) versus sequential chemotherapy with IRI plus FU/LV followed by oxaliplatin (OXA) plus FU/LV (arm B) as first line therapy. METHODS Intent-to-treat analysis was performed on 417 patients (211 in arm A and 206 in arm B). Treatment schedules of weekly IRI 80 mg/m(2) or OXA 45 mg/m(2) plus LV 200 mg/m(2) immediately followed by intravenous bolus FU 450 mg/m(2) for 6 weeks were followed by a 2-week rest period. Treatment continued for 4 cycles. Patients in arm A were treated with IRI/FU/LV for 4 cycles, while patients in arm B were initially treated with IRI/FU/LV for 2 cycles followed by sequential administration of 2 cycles of OXA/FU/LV. RESULTS No significant difference emerged in overall response rate or overall survival. There was a difference in progression-free survival (median, 7.3 versus 8.2 months, p=0.040) in favour of arm B. Toxicity profiles were similar in both arms. CONCLUSIONS IRI/FU/LV and IRI/FU/LV followed by OXA/FU/LV showed comparable activity with a manageable toxicity profile.

UI MeSH Term Description Entries
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D009944 Organoplatinum Compounds Organic compounds which contain platinum as an integral part of the molecule. Compounds, Organoplatinum
D002166 Camptothecin An alkaloid isolated from the stem wood of the Chinese tree, Camptotheca acuminata. This compound selectively inhibits the nuclear enzyme DNA TOPOISOMERASES, TYPE I. Several semisynthetic analogs of camptothecin have demonstrated antitumor activity. Camptothecine
D002955 Leucovorin The active metabolite of FOLIC ACID. Leucovorin is used principally as an antidote to FOLIC ACID ANTAGONISTS. Calcium Leucovorin,Citrovorum Factor,Folinic Acid,N(5)-Formyltetrahydrofolate,5-Formyltetrahydrofolate,5-Formyltetrahydropteroylglutamate,Calcium Folinate,Folinic Acid-SF,Leucovorin, (D)-Isomer,Leucovorin, (DL)-Isomer,Leucovorin, (R)-Isomer,Leucovorin, Calcium (1:1) Salt,Leucovorin, Calcium (1:1) Salt, (DL)-Isomer,Leucovorin, Calcium (1:1) Salt, Pentahydrate,Leucovorin, Monosodium Salt,Leukovorin,Leukovorum,Wellcovorin,5 Formyltetrahydrofolate,5 Formyltetrahydropteroylglutamate,Acid, Folinic,Factor, Citrovorum,Folinate, Calcium,Folinic Acid SF,Leucovorin, Calcium,Monosodium Salt Leucovorin
D005260 Female Females
D005472 Fluorouracil A pyrimidine analog that is an antineoplastic antimetabolite. It interferes with DNA synthesis by blocking the THYMIDYLATE SYNTHETASE conversion of deoxyuridylic acid to thymidylic acid. 5-FU,5-FU Lederle,5-FU Medac,5-Fluorouracil,5-Fluorouracil-Biosyn,5-HU Hexal,5FU,Adrucil,Carac,Efudex,Efudix,Fluoro-Uracile ICN,Fluoroplex,Fluorouracil Mononitrate,Fluorouracil Monopotassium Salt,Fluorouracil Monosodium Salt,Fluorouracil Potassium Salt,Fluorouracil-GRY,Fluorouracile Dakota,Fluorouracilo Ferrer Far,Fluoruracil,Fluracedyl,Flurodex,Haemato-FU,Neofluor,Onkofluor,Ribofluor,5 FU Lederle,5 FU Medac,5 Fluorouracil,5 Fluorouracil Biosyn,5 HU Hexal,Dakota, Fluorouracile,Fluoro Uracile ICN,Fluorouracil GRY,Haemato FU
D005500 Follow-Up Studies Studies in which individuals or populations are followed to assess the outcome of exposures, procedures, or effects of a characteristic, e.g., occurrence of disease. Followup Studies,Follow Up Studies,Follow-Up Study,Followup Study,Studies, Follow-Up,Studies, Followup,Study, Follow-Up,Study, Followup
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000077146 Irinotecan A semisynthetic camptothecin derivative that inhibits DNA TOPOISOMERASE I to prevent nucleic acid synthesis during S PHASE. It is used as an antineoplastic agent for the treatment of COLORECTAL NEOPLASMS and PANCREATIC NEOPLASMS. 7-Ethyl-10-hydroxycamptothecin,CPT 11,CPT-11,Camptosar,Camptothecin-11,Irinotecan Hydrochloride,Irrinotecan,NK012 Compound,SN 38,SN 38 11,SN-38,SN-38-11,7 Ethyl 10 hydroxycamptothecin,CPT11,Camptothecin 11,SN3811

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