Bibliographic Details
Title: |
A phase two trial evaluating FOLFIRI plus aflibercept after failure of FOLFOXIRI plus bevacizumab in patients with unresectable metastatic colorectal cancer. |
Authors: |
Ando, Koji, Satake, Hironaga, Shimokawa, Mototsugu, Yasui, Hisateru, Negoro, Yuji, Kinjo, Tatsuya, Kizaki, Junya, Baba, Kenji, Orita, Hiroyuki, Hirata, Keiji, Sakamoto, Sanae, Makiyama, Akitaka, Saeki, Hiroshi, Tsuji, Akihito, Baba, Hideo, Oki, Eiji |
Source: |
International Journal of Clinical Oncology; Mar2025, Vol. 30 Issue 3, p514-523, 10p |
Subject Terms: |
OVERALL survival, COLORECTAL cancer, PROGRESSION-free survival, CANCER chemotherapy, METASTASIS |
Abstract: |
Background: FOLFOXIRI plus bevacizumab (BEV) is an option for first-line treatment of metastatic colorectal cancer (mCRC). However, there is no consensus on the optimal treatment strategy when disease progresses. The EFFORT open-label, multicenter, single-arm phase II study investigated whether FOLFIRI plus aflibercept retains activity after progression of FOLFOXIRI plus BEV treatment. Methods: The patients with unresectable mCRC who failed first-line FOLFOXIRI plus BEV received FOLFIRI plus aflibercept. The primary endpoint was progression-free survival (PFS) in the full analysis set (FAS). Angiogenic biomarkers were measured before treatment initiation. Results: From April 2019 to May 2021, 35 patients were enrolled and 34 were analysed in the FAS population (men, 18; median age, 63 years [range: 32–78]). The primary tumor was left-sided in most cases (23/34), 23 patients were RAS mutant, 3 patients had BRAF V600E mutation and 27 patients had liver metastases. The primary end-point was met with a median PFS of 4.3 months [80% confidence interval [CI] 3.7–5.1]. Median overall survival was 15.2 months [95% CI 8.9–22.7]. Per RECIST, there were 1 complete response, 4 partial responses, 21 stable diseases and 8 disease progressions. Overall response rate was 14.7% [95% CI 5.0–31.1], and disease control rate was 76.5% [95% CI 58.8–89.3]. Responses were more common in patients with high VEGF-C, low VEGF-D and low PlGF levels before treatment. Conclusion: FOLFIRI plus aflibercept, administered after failure of FOLFOXIRI plus BEV, is effective and has a manageable safety profile. This regimen may be a useful second-line treatment option for these patients. [ABSTRACT FROM AUTHOR] |
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Database: |
Complementary Index |