Shifting to first-line regimen after previous failure of irinotecan and oxaliplatin containing chemotherapies in unresectable metastatic colorectal cancer: a retrospective study of case analysis
2009
Xu, Zhaowen | King, Tai-Ming | Lin, Chieh-Hsin | Wang, Hsin-Tai | Ou, Wen-Chieh | Wang, Jui-Ho
Purpose Conventional use of FOLFIRI-FOLFOX or the reverse sequence is the optional regimen in metastatic unresectable colorectal cancer (CRC). We present our experience in chemotherapy (C/T) shifting to first-line regimen after previous failure of irinotecan and oxaliplatin containing regimens. Materials and methods A total of 48 patients with metastatic unresectable CRC were examined retrospectively. All the patients had both failure of a first-line C/T and a second-line C/T. Of these patients, 13 patients received C/T shifting to first-line regimen. Data were collected retrospectively. Results Rate of disease control of 38.4% was achieved (five in 13 patients). In the positive disease control group, metastatic sites were all extra-hepatic (five patients). In the negative disease control group, hepatic metastatic rate was 62.5% (five in eight patients, P = 0.044). Conclusions Even after previous failure of irinotecan and oxaliplatin containing C/T, we observe positive disease control response and survival benefit in selected patients with C/T shifting to the first-line regimen especially in extra-hepatic metastasis. The preliminary results are proposed to gain insight into the need for further investigations and large-scale studies.
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