“…Objective response rates remain low with most single-agent chemotherapy including 21 -26% with 5FU (Carter, 1975;Moertel, 1976), 26% with ifosfamide (Bernard et al, 1986), 22% with epirubicin (Wils et al, 1985) and 21% with cisplatin (Wils et al, 1993). Furthermore, the results of combination chemotherapy have also been disappointing with objective response rates of only 26% using 5FU with BCNU (Kovach et al, 1974), 10% with 5FU and mitomycin C (Buroker et al, 1979), 14% with FAM (5FU, doxorubicin, mitomycin C) (Oster et al, 1986), and 17% with continuous infusional 5FU administered with epirubucin and cisplatin (Evans et al, 1996). More recently, gemcitabine was observed to have promising activity in phase II trials (Casper et al, 1994;Rothenberg et al, 1996).…”