ArticleOncology letters2023
Prognostic significance of mucinous histology in left‑sided metastatic colorectal cancers with wild‑type RAS and evaluation of backbone chemotherapy regimens.
Article in Oncology letters, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed, 2 citations in OpenAlex.
- Clinicopathological characteristics and outcomes of colorectal mucinous adenocarcinoma: a retrospective analysis from China.Frontiers in oncology · 2024Article
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15 authors at 6 institutions in 1 country.
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Abstract
Mucinous colorectal adenocarcinoma (MCAC) is a distinct subtype of colorectal carcinoma (CRC). The prognostic and predictive significance of mucinous histology remains controversial. It was aimed to investigate the prognostic and/or predictive role of mucinous histology in left-sided metastatic CRC (mCRC) with wild-type RAS. This is a retrospective multicenter study of mCRC treated with first line anti-EGFR combined 5-fluorouracil based chemotherapy (CT). Patients were stratified according to presence (>50% extracellular mucin) or absence of mucinous histology. Survival analyses were performed firstly regardless of treatment options and then performed as separating according to CT regimens. Additional analyses were performed for MCAC patients considering backbone CT regimens. A total of 125 patients were included, consisting of 40 (32.0%) patients with MCAC and 85 (68.0%) patients with non-MCAC. Median follow-up time was 19.7 months. Median progression-free survival (PFS) was 10.7 months in all patients, and PFS was lower in MCAC than non-MCAC (9.9 vs. 12.0 months, respectively, P=0.005). Median overall survival (OS) was 25.7 months in all patients. OS was lower in MCAC than non-MCAC (22.8 vs. 29.7 months, respectively, P=0.005). When considering backbone CT regimens, in multivariate analyses, mucinous histology was an independent prognostic factor for OS in both for mFOLFOX6 (HR: 1.92, P=0.04) and FOLFIRI (HR: 2.04, P=0.04) groups and was associated with poor PFS in only mFOLFOX6 (HR: 3.86, P<0.001) group. When outcomes were analyzed for the MCAC group, median OS of MCAC patients receiving mFOLFOX6 and FOLFIRI was 22.47 and 14.22 months, respectively (P=0.41). Median PFS of MCAC patients receiving mFOLFOX6 and FOLFIRI was 10.15 and 8.11 months, respectively (P=0.73). The study revealed poor prognosis of mucinous histology, both in whole study population and in backbone CT groups. Moreover, lower PFS of MCAC patients was revealed in only mFOLFOX6 group and this finding may be a valuable issue for the future research. However, considering all analyses, the present results did not indicate a special benefit of any backbone CT regimen for MCAC patients.
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