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The efficacy and safety of bevacizumab combined with FOLFOX regimen in the treatment of advanced colorectal cancer: A systematic review and meta-analysis.
Zhang, H, You, J, Liu, W, Chen, D, Zhang, S, Wang, X
Medicine. 2021;(30):e26714
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Abstract
BACKGROUND It is necessary to systematically evaluate the clinical efficacy and safety of bevacizumab (BEV) combined with 5-fluorouracil + leucovorin + oxaliplatin (FOLFOX) regimen in the treatment of advanced colorectal cancer. METHODS We searched the PubMed et al databases for randomized controlled trials (RCTs) on the BEV combined with the FOLFOX regimen in the treatment of advanced colorectal cancer up to January 20, 2021. The Cochrane Collaborations' risk of bias tool was used for the quality assessment of included RCTs. Revman5.3 software was used for meta-analysis. RESULTS Eleven RCTs with a total of 3178 patients with advanced colorectal cancer were included, meta-analysis results showed that the objective response rate (odds ratio [OR] = 3.15, 95% confidence intervals [CI]: 2.25-4.40, P < .001) and cancer control rate (OR = 2.73, 95% CI: 1.91-3.90, P < .001) of BEV + FOLFOX were higher than that of FOLFOX group. And the incidence of gastrointestinal adverse reactions (OR = 1.29, 95% CI: 1.07-1.55, P = .008) in the BEV + FOLFOX group was higher than that of the FOLFOX group, there were no significant differences in the incidence of leukopenia (OR = 1.04, 95% CI: 0.72-1.50, P = .83), hypertension (OR = 3.92, 95% CI: 0.81-18.88, P = .09) and neurotoxicity (OR = 1.00, 95% CI: 0.8-1.27, P = .98) between the 2 groups. CONCLUSION BEV combined with the FOLFOX regimen is more effective than the FOLFOX regimen alone in the treatment of advanced colorectal cancer, but it may also increase the risk of gastrointestinal adverse reactions.
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Association of coffee consumption with risk of colorectal cancer: a meta-analysis of prospective cohort studies.
Gan, Y, Wu, J, Zhang, S, Li, L, Cao, S, Mkandawire, N, Ji, K, Herath, C, Gao, C, Xu, H, et al
Oncotarget. 2017;(12):18699-18711
Abstract
A meta-analysis was performed to assess the association of coffee consumption with colorectal cancer and to investigate the shape of the association. Relevant prospective cohort studies were identified by a comprehensive search of the PubMed, Embase and Web of Science databases from their inception through August 2015. Either a random-effects model or fixed-effects model was used to compute the pooled risk estimates when appropriate. Linear and nonlinear dose-response meta-analyses were also performed. Nineteen prospective cohort studies involving 2,046,575 participants and 22,629 patients with colorectal cancer were included. The risk of colon cancer was decreased by 7% for every 4 cups per day of coffee (RR=0.93, 95%CI, 0.88-0.99; P=0.199). There was a threshold approximately five cups of coffee per day, and the inverse association for colorectal cancer appeared to be stronger at a higher range of intake. However, a nonlinear association of rectal cancer with coffee consumption was not observed (P for nonlinearity = 0.214). In conclusion, coffee consumption is significantly associated with a decreased risk of colorectal cancer at ≥ 5 cups per day of coffee consumption. The findings support the recommendations of including coffee as a healthy beverage for the prevention of colorectal cancer.
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Infusion of calcium and magnesium for oxaliplatin-induced sensory neurotoxicity in colorectal cancer: a systematic review and meta-analysis.
Wu, Z, Ouyang, J, He, Z, Zhang, S
European journal of cancer (Oxford, England : 1990). 2012;(12):1791-8
Abstract
BACKGROUND It is hypothesised that infusion of calcium and magnesium (Ca/Mg) can reduce the occurrence of oxaliplatin-related sensory neurotoxicity. However, more recent data have drawn a controversial picture concerning this topic. METHODS A comprehensive literature search was performed using Medline, Embase, Cochrane Library and Google Scholar database up to 1st August 2011. Keywords for the search were: calcium, magnesium and oxaliplatin. The odd ratio (OR) for neurotoxicity and relative risk (RR) for tumour response rate were calculated. RESULTS Seven studies (four randomised controlled trials (RCTs) and three cohorts) including a total of 1238 participants met our criteria. Meta-analysis of three RCT studies that reported in National Cancer Institute-Common Toxicity Criteria (NCE-CTC) showed that OR for neurotoxicity of Grade ~2 was not significant (OR 0.47; 95%confidence interval (CI) 0.22-1.00, P homogeneity = .729). The OR was also not significant in All Grades (OR 3.15, 0.32-31.35, P homogeneity = .952) and Grade 3 subgroup (OR 1.64, 0.30-9.00, P homogeneity = .656). No statistically significant difference was observed in RR for tumour response rate. (RR = 0.91, 0.78-1.06, P homogeneity = .33) CONCLUSIONS This meta-analysis does not support the hypothesis that infusion of Ca/Mg reduces the occurrence of neurotoxicity in oxaliplatin-treated patients with colorectal cancer measuring with NCE-CTC criteria. On the other hand, our results support the hypothesis that administrations of Ca/Mg do not impair the efficacy of oxaliplatin-based chemotherapy. However, large-scale randomised, controlled clinical trials will be required to confirm these hypotheses.