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The activity of epirubicin, cisplatin and 5-fluorouracil (5-FU), as single agents or in combination (ECF), was investigated in three human colon cancer cell lines by two different assays (cell-counting assay and sulforhodamine B assay) in vitro. 5-FU was tested with both short and continuous exposure. Particular interest was focused on the results obtained in the HCT8-FU cell line, a subline with experimentally induced resistance to 5-FU. The positive modulation of both cisplatin and epirubicin cytotoxicity by 5-FU makes the ECF regimen an attractive protocol for combination therapy in colorectal cancer., (Copyright 2001 S. Karger AG, Basel)

Thirty-one patients with advanced colorectal cancer were treated with a regimen of epirubicin, cisplatin and continuous-infusion (c.i.) 5-fluorouracil (5-FU) (ECF regimen). Twenty-seven patients were evaluable for response rate (RR), progression-free survival (PFS) and overall survival (OS). In this study, the ECF chemotherapy yielded a 51% RR with a PFS of more than 8 months, an OS of more than 11 months and tolerable toxicity. In spite of the perplexity concerning the use of anthracyclines in colorectal cancer, the ECF regimen seems to be a possible treatment even for this malignancy. Controlled studies with ECF versus standard treatments and versus 5-FU alone in c.i. are necessary., (Copyright 2001 S. Karger AG, Basel)