Cetuximab Can Be an Effective and Low-Toxicity Maintenance Treatment Drug in Patients With Metastatic Colorectal Cancer: A Real-World Study of Zhejiang Cancer Hospital.

Frontiers in Pharmacology
Meiqin YuanHaijun Zhong

Abstract

After initial treatment, maintenance therapy is now commonly used in mCRC patients, which can help patients live longer, have lower side effects, and higher quality of life. The maintenance treatment may include chemotherapy, targeted therapy, or combined with chemotherapy and targeted therapy. But the evidence of cetuximab maintenance is still scant. Methods: We collected real-world data of wild-type RAS unresectable mCRC patients who were treated with cetuximab-based chemotherapy as the first-line therapy between January 2013 and December 2018 at the Zhejiang Cancer Hospital (Hangzhou, China). Results: A total of 177 patients were ultimately included in the study, and 107 patients had progression information in medical records; all patients had survival data. The median OS was 40.9 ms, ORR was 14.7%, and DCR was 73.5%. The subgroup analysis showed that the mOS was better in maintenance patients than in non-maintenance patients (47.1 vs. 28.6 ms, p = 0.001), patients with primary tumor resection had better mOS than who did not (47.1 vs. 35.4 ms, p = 0.038). In those 107 patients who had progression information, the median PFS was 9 ms, the median OS was 42.6 ms, ORR was 18.7%, and DCR was 84.1%. The subgroup analysis showed th...Continue Reading

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