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  • Title: Does the Oral Administration of Ginger Reduce Chemotherapy-Induced Nausea and Vomiting?: A Meta-analysis of 10 Randomized Controlled Trials.
    Author: Chang WP, Peng YX.
    Journal: Cancer Nurs; 2019; 42(6):E14-E23. PubMed ID: 30299420.
    Abstract:
    BACKGROUND: Preclinical tests in animals have shown that ginger extract can be used to treat chemotherapy-induced nausea and vomiting (CINV); however, research findings in clinical trials have not been conclusive. OBJECTIVE: Through this meta-analysis, we aimed to determine whether ginger could be used to treat CINV, which was interpreted using the PICOS (patient, problem/population, intervention, comparison, outcome, study) framework, with P being patients who underwent chemotherapy; I being 0.5 to 2.0 g/d of Zingiberaceae, Zintoma, dry ginger, ginger capsules, powdered ginger root, Zingiber officinale Roscoe, ginger extract, powdered ginger, 6-gingerol, or shogalos; C being placebo or standard care; and O being the relief, reduction, or improvement of CINV. METHOD: Via systematic literature review, we searched for studies in English from 2000 to 2017 in databases. We conducted a meta-analysis using Comprehensive Meta-analysis 2 on a total of 10 studies with complete data. RESULTS: The odds ratio (OR) of ginger in controlling CINV was 0.71 (95% confidence interval [CI], 0.54-0.94; P = .015). Heterogeneity existed among the samples; therefore, we proceeded with a subgroup analysis and divided nausea and vomiting into acute or delayed. The results revealed that ginger could only reduce acute CINV in patients (OR, 0.60; 95% CI, 0.42-0.86; P = .006), particularly acute vomiting (OR, 0.58; 95% CI, 0.37-0.94; P = .025). CONCLUSIONS: Ginger displayed significant efficacy with regard to controlling CINV in the experimental groups. IMPLICATIONS FOR PRACTICE: Our results could provide a reference for antiemetic methods to treat CINV and facilitate support for more clinical trials in the future to establish relevant guidelines.
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