The Effectiveness Of Cetuximab And Panitumumab When Combined With Folfiri In Second-Line Treatment Of Kras Wild Type Metastatic Colorectal Cancers. Single Centre Experience
JOURNAL OF CHEMOTHERAPY(2021)
Abstract
Panitumumab and cetuximab are monoclonal antibodies known to be effective in metastatic colorectal cancer (mCRC). Although the survival benefits when combined with chemotherapy have been determined, there are no studies comparing the two agents with chemotherapy in the second-line treatment. In this study, we aimed to compare the efficacy of cetuximab vs panitumumab in patients who previously received chemotherapy. Who progressed after first-line treatment for K-ras wild type mCRC were analyzed. The efficacy of cetuximab vs panitumumab on overall survival (OS) and progression-free survival (PFS) when combined with FOLFIRI regimen was compared retrospectively. Median PFS was 6.9 months in the cetuximab group and 4.7 months in the panitumumab group. Median OS cetuximab and panitumumab groups were 18.4 and 12.2 months, respectively. In the second-line treatment of K-ras wild type mCRC, both PFS and OS were found to be longer in patients receiving cetuximab than in patients receiving panitumumab, but no statistically significant difference was found.
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Key words
Colorectal cancers, cetuximab, panitumumab, K-ras, PFS, OS
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