trial sequential analysis (TSA)

试验序贯分析 (TSA)
  • 文章类型: Journal Article
    血脂异常的总体患病率持续增加,这对冠状动脉疾病构成了重大风险。一些血脂异常患者对常规降脂治疗没有反应或受益,这保证了对替代和补充疗法的需求。中成药(CPM)在治疗血脂异常方面显示出巨大的潜力,但其临床价值有待进一步探讨。本研究旨在系统评价CPM治疗血脂异常的有效性和安全性。
    本研究在INPLASY注册为INPLASY202330090。本研究纳入的随机对照试验发表于2013年1月至2023年3月,并从WebofScience检索。PubMed,Embase,科克伦图书馆,SinoMed,中国全民知识互联网,万方,和VIP。研究中的偏倚风险由两名评审员采用Cochrane随机试验偏倚风险工具(RoB2)ReviewManager5.4软件进行四组血脂的总体效应分析和亚组分析,并进行试验序贯分析(TSA)以检查结果.
    共包括69项研究,涉及6,993名参与者。方法学质量处于中等水平。Meta分析显示CPM可显著提高总胆固醇(TC)水平[均差(MD)=-0.54mmol/L;95%置信区间(CI):-0.71~-0.37;P<0.001],甘油三酯(TG)(MD=-0.43mmol/L;95%CI:-0.53至-0.33;P<0.001),低密度脂蛋白胆固醇(LDL-C)(MD=-0.40mmol/L;95%CI:-0.50至-0.30;P<0.001)和高密度脂蛋白胆固醇(HDL-C)水平升高(MD=0.23mmol/L;95%CI:0.18至0.27;P<0.001),血脂异常患者。虽然CPM与他汀类药物单独使用时没有显著差异,当与他汀类药物以及用于治疗合并症或合并症的药物联合使用时,它可以更好地改善所有病例的血脂状况。亚组分析发现,丸剂的疗效优于其他制剂,和CPM在合并症的情况下显示出更好的降脂反应。TSA证实了LDL-C水平分析的稳健性。治疗组和对照组的不良事件发生率无显著差异[风险比(RR)=0.89;95%CI:0.69-1.16;P=0.40]。
    CPM作为替代和补充疗法,可以在改善血脂异常方面产生优异的治疗效果,而不会加剧不良反应。此外,通过强调药物配方和加强证候标准化可以提高治疗效果。
    UNASSIGNED: The overall prevalence of dyslipidemia continues to increase, which poses a significant risk for coronary artery disease. Some patients with dyslipidemia do not respond to or benefit from conventional lipid-lowering therapy, which warrants the need for alternative and complementary therapies. Chinese patent medicine (CPM) has shown great potential in the treatment of dyslipidemia, but its clinical value needs to be further explored. This study aims to systematically evaluate the efficacy and safety of CPM in treating dyslipidemia.
    UNASSIGNED: This study was registered in INPLASY as INPLASY202330090. The randomized controlled trials included in this study were published in January 2013 to March 2023 and retrieved from the Web of Science, PubMed, Embase, Cochrane Library, SinoMed, China National Knowledge Internet, WanFang, and VIP. The bias risk in the study was independently evaluated by two reviewers using the Cochrane Randomized Trial Bias Risk Tool (RoB 2) Review Manager 5.4 software was used for the overall effect analysis and subgroup analysis of four blood lipids, and the trial sequential analysis (TSA) was conducted to check the results.
    UNASSIGNED: A total of 69 studies were included, involving 6,993 participants. The methodological quality was in the middle level. Meta-analysis showed that CPM markedly improved the levels of total cholesterol (TC) [mean difference (MD) =-0.54 mmol/L; 95% confidence interval (CI): -0.71 to -0.37; P<0.001], triglyceride (TG) (MD =-0.43 mmol/L; 95% CI: -0.53 to -0.33; P<0.001), low-density lipoprotein cholesterol (LDL-C) (MD =-0.40 mmol/L; 95% CI: -0.50 to -0.30; P<0.001) and increased levels of high-density lipoprotein cholesterol (HDL-C) (MD =0.23 mmol/L; 95% CI: 0.18 to 0.27; P<0.001), in patients with dyslipidemia. Though CPM did not differ significantly from statins when used alone, it could improve lipid profile better in all cases when used in combination with statins and with drugs used for comorbidities or co-morbidities. Subgroup analysis found that the efficacy of pill formulations was superior to other formulations, and CPM showed better lipid-lowering response in the context of comorbidity. The TSA confirmed the robustness of the analysis of the LDL-C level. No significant difference was observed in the incidence of adverse events between the treatment group and the control group [risk ratio (RR) =0.89; 95% CI: 0.69-1.16; P=0.40].
    UNASSIGNED: CPM can yield superior therapeutic effects in ameliorating dyslipidemia without exacerbating adverse effects as an alternative and complementary therapy. In addition, the therapeutic effect can be improved by emphasizing pill formulation and strengthening the standardization of syndromes.
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  • 文章类型: Meta-Analysis
    背景:胰高血糖素样肽-1受体激动剂(GLP-1RAs)是治疗肥胖的新药。
    目的:评估GLP-1RAs对超重或肥胖无糖尿病患者的减肥效果。
    方法:这是一项系统综述,包括荟萃分析和试验序贯分析。PubMed,Embase,从开始到2022年1月1日,搜索了Cochrane中央控制试验登记册。合格的试验报告结果,包括体重(BW),体重指数(BMI),腰围(WC),腰臀比(WHR),或全身脂肪(TBF)。使用随机效应模型总结了平均差(MD)和标准化平均差(SMD)。
    结果:纳入了41项试验,涉及15,135名参与者。与对照组相比,GLP-1RAs显着降低BW(MD-5.319kg,95%CI:-6.465,-4.174),BMI(MD-2.373kg/m2,95%CI:-2.821,-1.924),WC(MD-4.302cm,CI:-5.185至-3.419),WHR(MD-0.011,CI-0.015至-0.007),但不是TBF(MD-0.320%,CI-1.420至-0.780)。试验序贯分析(TSA)支持GLP-1RA对BW,BMI,和WC减肥。GLP-1RA与体重减轻具有非线性剂量反应关系。广泛的敏感性分析证明了结果的稳健性,尽管证据的等级确定性从高到非常低。证据的高至中度确定性表明司马鲁肽是最有效的GLP-1RA药物,具有最佳疗效和低至中度的不良反应风险。
    结论:本研究提供了确凿证据证明GLP-1RAs对肥胖或超重无糖尿病患者体重下降的非线性剂量反应方式的影响。就BW的变化而言,BMI,WC,有确凿的证据表明GLP-1RA的总体减肥效果。在GLP-1RA中,司马鲁肽可能是最有效的药物。
    Glucagon-like peptide-1 receptor agonists (GLP-1RAs) are new drugs for the treatment of obesity.
    To assess the weight-loss effects of GLP-1RAs in the treatment of patients with overweight or obesity without diabetes.
    This is a systematic review with meta-analysis and trial sequential analysis. PubMed, Embase, and Cochrane Central Register of Controlled Trials were searched from their inception to January 1, 2022. Eligible trials report on outcomes including body weight (BW), body mass index (BMI), waist circumference (WC), waist-to-hip ratio (WHR), or total body fat (TBF). Mean differences (MDs) and standardized mean differences (SMDs) were summarized using random-effects models.
    Forty-one trials involving 15,135 participants were included. Compared with controls, GLP-1RAs significantly reduced BW (MD -5.319 kg, 95% CI: -6.465, -4.174), BMI (MD -2.373 kg/m2, 95% CI: -2.821, -1.924), WC (MD -4.302 cm, CI:-5.185 to -3.419), WHR (MD -0.011, CI -0.015 to -0.007), but not TBF (MD -0.320%, CI -1.420 to -0.780). Trial sequential analysis (TSA) supported conclusive evidence of the effects of GLP-1RAs on BW, BMI, and WC for weight loss. GLP-1RAs had nonlinear dose-response relationships with weight loss. Extensive sensitivity analyses demonstrated the robustness of the results, though the GRADE certainty of the evidence ranged from high to very low. High to moderate GRADE certainty of evidence suggested semaglutide as the most effective GLP-1RA agent, with the best efficacy and low to moderate risk of adverse effects.
    The present study provides conclusive evidence for the effect of GLP-1RAs on weight loss in a nonlinear dose-response manner in patients with obesity or overweight without diabetes. In terms of changes in BW, BMI, and WC, there is firm evidence for the overall weight-loss effects of GLP-1RAs. Of the GLP-1RAs, semaglutide might be the most effective agent.
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  • 文章类型: Systematic Review
    未经授权:没有足够的证据支持使用针灸治疗轻度认知障碍(MCI),对其疗效没有共识。本综述旨在确定MCI患者的针刺效应。
    UASSIGNED:针灸治疗MCI的相关和潜在合格的随机对照试验(RCT)来自四个中国数据库,四个英文数据库,以及截至2022年8月1日的额外资源。主要结果是总体认知功能(OCF)的改善。次要结果是改善记忆功能(MF)和日常生活活动(ADLs)。应用修订后的Cochrane协作偏倚风险(ROB)评估工具(ROB2.0)评估其方法学质量。使用ReviewManager软件v5.4进行分析。试验序贯分析(TSA)0.9.5.10β软件用于估计所需样本量并检验合并结果的可靠性。使用建议分级评估来评估证据质量,发展,和评估(等级)工具。
    UNASSIGNED:本荟萃分析包括11项RCT,共602例患者。所有试验的方法学质量均中等。低质量证据显示针刺显著改善OCF(简易精神状态检查(MMSE):均差(MD)=1.22,95%置信区间(CI):0.78-1.66;蒙特利尔认知评估量表(MoCA):MD=1.22,95%CI:0.47-1.97)。在亚组分析中,与常规药物(CM)和假针刺(SA)相比,针刺显着增加了MCI患者的OCF。TSA的研究结果表明,针灸改善MCI患者OCF的证据是决定性的。同时,针刺和CM对MF和ADL的改善无统计学差异。TSA显示,改善患有MCI并接受针灸的患者的MF和ADL的证据尚无定论。改善MF和ADL的证据从低到极低排名。
    UNASSIGNED:针刺似乎是改善MCI患者OCF的有效临床应用方法。然而,由于证据质量低,在这一领域需要更多相关和高质量的研究。
    UNASSIGNED:https://www。crd.约克。AC.uk/prospro/display_record.php?ID=CRD42021291284,PROSPERO,不。CRD42021291284。
    UNASSIGNED: There is insufficient evidence to support the use of acupuncture for mild cognitive impairment (MCI), and there is no consensus on its efficacy. This review aimed to determine the acupuncture effect in patients with MCI.
    UNASSIGNED: Relevant and potentially eligible randomized controlled trials (RCTs) of acupuncture for MCI were obtained from four Chinese databases, four English databases, and additional resources up to 1 August 2022. The primary outcome was the improvement in overall cognitive function (OCF). Secondary outcomes were improved memory function (MF) and activities of daily living (ADLs). The revised Cochrane collaboration risk of bias (ROB) assessment tool (ROB 2.0) was applied to evaluate their methodological quality. The Review Manager software v 5.4 was used for analyses. Trial sequential analysis (TSA) 0.9.5.10 β software was used to estimate the required sample size and test the reliability of the pooled outcome. The quality of evidence was assessed using the Grading of Recommendations Assessment, Development, and Evaluation (GRADE) tool.
    UNASSIGNED: This meta-analysis included 11 RCTs with a total of 602 patients. The methodological quality of all trials was moderate. Low-quality evidence showed that acupuncture significantly improved OCF (Mini-Mental State Examination (MMSE): mean difference (MD) = 1.22, 95% confidence interval (CI): 0.78-1.66; the Montreal Cognitive Assessment Scale (MoCA): MD = 1.22, 95% CI: 0.47-1.97). In subgroup analyses, it was revealed that acupuncture significantly increased OCF in patients with MCI when compared to conventional medicine (CM) and sham acupuncture (SA). TSA\'s findings indicated that the evidence of improving OCF with acupuncture for patients with MCI was conclusive. Meanwhile, there is no statistical difference in the improvement of MF and ADL between acupuncture and CM. TSA showed that the evidence of improving MF and ADL for patients who had MCI and received acupuncture was inconclusive. The shreds of evidence of improving MF and ADL were ranked from low to critically low.
    UNASSIGNED: Acupuncture appears to be an effective clinical application method for improving OCF in patients with MCI. However, due to low-quality evidence, more relevant and high-quality research is needed in this field.
    UNASSIGNED: https://www.crd.york.ac.uk/prospero/display_record.php?ID=CRD42021291284, PROSPERO, No. CRD42021291284.
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  • 文章类型: Systematic Review
    据报道,γ-氨基丁酸A型受体(GABAAR)与癫痫的发病机理和慢性癫痫的复发有关。GABRA1和GABRA6基因多态性可能导致癫痫和多药耐药的高风险。但结果相互矛盾。我们旨在使用荟萃分析评估GABRA1rs2279020和GABRA6rs3219151与癫痫风险的关联。Pubmed的数据库,奥维德,WebofScience,搜索了中国国家知识基础设施。使用固定或随机效应模型计算汇总比值比(OR)和95%置信区间(CI)以评估多态性与癫痫风险之间的关联。进行试验序贯分析(TSA)以评估荟萃分析的结果。在亚洲和阿拉伯人群中,GABRA1rs2279020和GABRA6rs3219151与癫痫风险之间没有显着关联。当比较GABRA1rs2279020和GABRA6rs3219151多态性与抗癫痫药物反应性时,也观察到阴性结果。试验序贯分析证实了荟萃分析的结果。这项荟萃分析表明,在亚洲和阿拉伯人群中,GABRA1rs2279020和GABRA6rs3219151不是癫痫病因和抗癫痫药物反应性的危险因素。
    The γ-aminobutyric acid type A receptors (GABAAR) have been reported to contribute to the pathogenesis of epilepsy and the recurrence of chronic seizures. Genetic polymorphisms in GABRA1 and GABRA6 may confer a high risk of epilepsy and multiple drug resistance, but with conflicting results. We aimed to assess the association of GABRA1 rs2279020 and GABRA6 rs3219151 with epilepsy risk using a meta-analysis. The databases of Pubmed, Ovid, Web of Science, and China National Knowledge Infrastructure were searched. Summary odds ratios (ORs) and 95% confidence intervals (CIs) were computed to evaluate the association between the polymorphisms and epilepsy risk using a fixed- or random-effect model. Trial sequential analysis (TSA) was performed to assess the results of the meta-analysis. No significant association between the GABRA1 rs2279020 and GABRA6 rs3219151 and the risk of epilepsy was found in the Asian and Arabic populations. The negative results were also observed when comparing the GABRA1 rs2279020 and GABRA6 rs3219151 polymorphism to antiepileptic drug responsiveness. The trial sequential analysis confirmed the results of the meta-analysis. This meta-analysis suggests that GABRA1 rs2279020 and GABRA6 rs3219151 are not risk factors for the etiology of epilepsy and antiepileptic drug responsiveness in the Asian and Arabic populations.
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  • 文章类型: Journal Article
    涉及肿瘤发生的病因机制,包括细胞增殖的改变,凋亡,入侵,迁移,和死亡,可能导致microRNA(miR)表达的改变。假设是,在最近对miR-196a和miR-196b进行的研究的文献中,可以清楚地确定,通过汇总结果,通过风险比(HR)分析,miR-196在头颈部鳞状细胞癌(HNSCC)组织中的上调是否可以代表生存的预后生物标志物.系统审查是根据PRISMA的迹象进行的,并使用了四个电子数据库(ScienceDirect,Scopus,PubMed,和CochraneCentral),加上灰色文学。使用了关键词的组合,如miR-196,miR-196和HNSCC,microRNA和HNSCC,LSCC和miR-196,OSCC和miR-196,OPSCC和miR-196,HSCC和miR-196。使用RevMan5.41软件和Stata13(StataCorp,学院站,TX,美国)与R4.2软件的实施。此搜索确定了1593份报告,在选择结束时,插入了五篇文章。荟萃分析的结果报告了总生存期(OS)的总HR,miR-196表达最高和最低之间的1.67,95%CI:[1.16,2.49]。在这个荟萃分析中,我们发现森林地块有利于HNSCC患者的高OS,与对照组相比,miR-196低表达,将这些数据与良好的预后相关联,这表明该miRNA在增强HNSCC患者的治疗敏感性中的潜在作用。因此,本系统综述将自己定位为,连同关于这个主题的其他系统评论,在第三阶段临床试验研究的发现中发挥了关键作用,寻找HNSCC的miR-196预后模型。总之,由于荟萃分析的局限性,可以认为miR-196家族的miR可能是HNSCC生存的独立预后生物标志物。
    The etiopathogenetic mechanisms involving tumor genesis, including alteration of cell proliferation, apoptosis, invasion, migration, and death, may lead to alterations in microRNAs (miR) expression. The hypothesis is that with the presence in the literature of recent studies conducted on miR-196a and miR-196b, it is possible to clearly determine, by aggregating the results, whether miR-196 upregulation in head and neck squamous cell carcinoma (HNSCC) tissues can represent a prognostic biomarker of survival through hazard ratio (HR) analysis. The systematic review was conducted following the indications of the PRISMA, and four electronic databases were used (Science Direct, SCOPUS, PubMed, and Cochrane Central), with the addition of gray literature. Combinations of keywords were used, such as miR-196, miR-196 AND HNSCC, microRNA AND HNSCC, LSCC AND miR-196, OSCC AND miR-196, OPSCC AND miR-196, HSCC AND miR-196. The meta-analysis and trial sequential analysis (TSA) were performed using RevMan 5.41 software and Stata 13 (StataCorp, College Station, TX, USA) with the implementation of the R 4.2 software. This search identified 1593 reports and, at the end of the selection, five articles were inserted. The results of the meta-analysis report an aggregate HR for overall survival (OS), between the highest and lowest miR-196 expression of 1.67, 95% CI: [1.16, 2.49]. In this meta-analysis, we found that the forest plot is in favor of higher OS in HNSCC patients, compared with the control, with low miR-196 expression, correlating this data with a favorable prognosis, which indicated the potential role of this miRNA in strengthening the therapy sensitiveness of the HNSCC patients. Consequently, the present systematic review places itself, together with other systematic reviews on this topic, in a key role to the finding of Phase 3 clinical trials studies, in search for a prognostic model of miR-196 for HNSCC. In conclusion, with the limitations of the meta-analysis, it can be argued that miRs of the miR-196 family could be independent prognostic biomarkers of survival for HNSCC.
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  • 文章类型: Journal Article
    背景:膝骨关节炎(OA)的影响对老年人构成了巨大的挑战。研究报告说,遗传因素,MMP1等是膝关节OA的重要危险因素之一。虽然MMP1rs1799750基因多态性与膝关节OA风险之间的关系已被探讨,由于研究样本量的原因,结论一直不一致,悬而未决,研究与疾病相关的遗传多态性的决定因素之一。目的:基于样本量估计,建立MMP1rs1799750基因多态性与膝关节OA是否相关的模型。方法:样本来自病例对照和荟萃分析研究。在病例-对照研究中,2015-2019年,在三军总医院健康检查中心招募了以Kellgren-Lawrence分级系统(KL)为诊断标准进行膝关节X线检查的患者.使用iPLEXGold进行基因测序。排除基因测序不成功的那些。最后,膝关节OA组569例(KL≥2),对照组534例(KL<2).在荟萃分析中,我们使用了PubMed数据库,EMBASE,和Cochrane寻找MMP1rs1799750与膝关节OA关系的研究。接下来,我们采用试验序贯分析(TSA)方法评估样本量是否足以确定高加索人和亚洲人MMP1rs1799750基因多态性在膝OA中的风险.结果:在高加索人中,MMP1rs1799750与膝关节OA无显著相关,比值比(OR)为1.10(95%置信区间,CI:0.45−2.68)。需要额外的8559个样本才能通过TSA模型在高加索人中得出这种关系。在亚洲人中,我们的病例-对照研究结果(n=1103)以及病例-对照样本和荟萃分析结果均未显示MMP1rs1799750与膝关节OA之间存在关联.在亚洲样品的组合中,OR(95%CI)为1.10(0.81-1.49)。通过TSA模型,需要额外的5517个样本来证明亚洲人的这种关系。结论:这项研究表明,高加索人和亚洲人需要额外的8559和5517个样本,分别,为了证明MMP1rs1799750与膝关节OA之间的相关性。
    Background: the impact of knee osteoarthritis (OA) poses a formidable challenge to older adults. Studies have reported that genetic factors, such as MMP1, are one of important risk factors for knee OA. Although the relationship between the genetic polymorphism of MMP1 rs1799750 and the risk of knee OA has been explored, conclusions have been nonunanimous and pending due to research sample sizes, one of determinants in studying genetic polymorphisms associated with disease. Objective: to establish a model to assess whether the genetic polymorphism of MMP1 rs1799750 is associated with knee OA based on an estimation of sample sizes. Methods: samples were collected from a case−control and meta-analysis study. In the case−control study, patients who underwent knee X-ray examinations based on the Kellgren−Lawrence Grading System (KL) as diagnostic criteria were recruited at the Health Examination Center of the Tri-Service General Hospital from 2015 to 2019. Gene sequencing was conducted using iPLEX Gold. Those with unsuccessful gene sequencing were excluded. Finally, there were 569 patients in the knee OA group (KL ≥ 2) and 534 participants in the control group (KL < 2). In the meta-analysis, we used the databases PubMed, EMBASE, and Cochrane to search for studies on the relationship between MMP1 rs1799750 and knee OA. Next, we adopted the trial sequential analysis (TSA) method to assess whether sample sizes were sufficient or not to determine the risk of the genetic polymorphism of MMP1 rs1799750 on knee OA in Caucasians and Asians. Results: in Caucasians, the MMP1 rs1799750 was not significantly associated with knee OA with an odds ratios (OR) of 1.10 (95% confidence interval, CI: 0.45−2.68). Some extra 8559 samples were needed to conclude this relationship in Caucasians by the TSA model. In Asians, neither our case−control study results (n = 1103) nor a combination of samples from the case−control and meta-analysis results showed an association between MMP1 rs1799750 and knee OA. The OR (95% CI) was 1.10 (0.81−1.49) in a combination of Asian samples. Some extra 5517 samples were needed to justify this relationship in Asians by the TSA model. Conclusions: this research shows that an extra 8559 and 5517 samples are needed in Caucasians and Asians, respectively, in order to justify the association between MMP1 rs1799750 and knee OA.
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  • 文章类型: Systematic Review
    早期肾脏替代治疗(eRRT)对急性肾损伤(AKI)危重患者的疗效和安全性仍存在争议。因此,本研究的目的是采用随机对照试验(RCTs)的试验序贯分析(TSA)进行最新的meta分析,以评估eRRT对重症监护病房(ICU)患者的治疗效果.我们广泛搜索了MEDLINE,EMBASE,LILACS,Cochrane中央对照试验和临床试验登记册.gov,灰色文献报告,和比勒费尔德学术搜索引擎(BASE),并于2021年12月27日进行了更新搜索。纳入的研究为随机对照试验,比较了eRRT和延迟肾脏替代治疗(dRRT)对重症AKI患者的疗效和安全性。我们采取TSA和敏感度剖析加强成果的稳健性。包括约12个RCT,共有5,423名参与者。接受eRRT和dRRT的患者在第28天的全因死亡率相似(38.7%vs.38.9%)[风险比(RR),1.00;95CI,0.93-1.07,p=0.93,I2=0%,p=0.93]。敏感性和亚组分析对主要结局产生了相似的结果。TSA显示,所需的信息大小为5,034,累积Z曲线越过了无效的试验序贯监测边界。接受eRRT的患者肾脏替代治疗(RRT)的比率较高(RR,1.50,95%CI:1.28-1.76,p<0.00001,I2=96%),与接受dRRT的患者相比,发生了更多的不良事件(RR:1.41,95%CI:1.22-1.63,p<0.0001,不应用异质性)。最显著和最重要的实验发现是,根据我们的知识,当前的荟萃分析包括来自RCT的最大样本量,这些都是在过去的十年里出版的,显示eRRT与dRRT和TSA相比,对患有AKI的患病患者没有显著的生存获益,表明不需要更多的研究来证实这一点。
    未经批准:插入,INPLASY2020120030。2020年12月04日注册。
    The efficacy and safety of early renal replacement therapy (eRRT) for critically ill patients with acute kidney injury (AKI) remain controversial. Therefore, the purpose of our study was to perform an up-to-date meta-analysis with the trial sequential analysis (TSA) of randomized controlled trials (RCTs) to evaluate the therapeutic effect of eRRT on patients in an intensive care unit (ICU). We extensively searched MEDLINE, EMBASE, LILACS, the Cochrane Central Register of Controlled Trials and ClinicalTrials.gov, Gray Literature Report, and Bielefeld Academic Search Engine (BASE), and conducted an updated search on December 27, 2021. The included studies were RCTs, which compared the efficacy and safety of eRRT and delayed renal replacement therapy (dRRT) on critically ill patients with AKI. We adopted TSA and sensitivity analysis to strengthen the robustness of the results. About 12 RCTs with a total of 5,423 participants were included. Patients receiving eRRT and dRRT had the similar rate of all-cause mortality at day 28 (38.7% vs. 38.9%) [risk ratio (RR), 1.00; 95%CI, 0.93-1.07, p = 0.93, I 2 = 0%, p = 0.93]. A sensitivity and subgroup analysis produced similar results for the primary outcome. TSA showed that the required information size was 5,034, and the cumulative Z-curve crossed trial sequential monitoring boundaries for futility. Patients receiving eRRT had a higher rate of renal replacement therapy (RRT) (RR, 1.50, 95% CI: 1.28-1.76, p < 0.00001, I 2 = 96%), and experienced more adverse events comparing to those receiving dRRT (RR: 1.41, 95% CI: 1.22-1.63, p < 0.0001, heterogeneity not applied). The most remarkable and important experimental finding is that, to our knowledge, the current meta-analysis included the largest sample size from the RCTs, which were published in the past 10 years to date, show that eRRT had no significant survival benefit for ill patients with AKI compared with dRRT and TSA indicating that no more studies were needed to confirm it.
    UNASSIGNED: INPLASY, INPLASY2020120030. Registered 04 December 2020.
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  • 文章类型: Journal Article
    背景:质子泵抑制剂(PPI)已用于治疗Barrett食管(BE),但是似乎没有足够的证据表明PPI可以预防食管腺癌(EAC)和高度异型增生(HGD)。本研究旨在评估PPI对BE患者的影响。
    方法:系统搜索PubMed和EMBASE。采用Stata13和试验序贯分析(TSA)软件进行相关统计。计算具有95%置信区间(CI)的集合比值比(OR)。
    结果:使用PPI降低EAC和HGD的发生率尚未得到证实(OR,0.61;95%CI,0.29-1.26)。三项队列研究的汇总结果显示,PPI的使用具有保护性(OR0.48;95%CI,0.33-0.70)。但是,5项病例对照研究的合并结果表明使用PPI并不能证明这种保护作用(OR0.73;95%CI,0.21-2.48)。在对4项美国研究2荷兰的汇总分析中,注意到对EAC和HGD发展的保护作用(OR,0.59;95%CI,0.43-0.80)和(OR,0.16;95%CI,0.03-0.75)。
    结论:根据已有研究的Meta分析和TSA,PPI对BE患者进展为EAC和/或HGD的保护作用尚未得到证实.TSA表明,在得出明确结论之前,需要更多的患者。
    BACKGROUND: Proton pump inhibitors (PPIs) have been used to treat Barrett\'s esophagus (BE), but there seems to be insufficient evidence that PPIs can prevent esophageal adenocarcinoma (EAC) and high grade dysplasia (HGD). This study aimed to evaluate the effects of PPIs in BE patients.
    METHODS: PubMed and EMBASE were systematically searched. Stata13 and trial sequential analysis (TSA) software were used to carry out related statistics. Pooled odds ratio (OR) with 95% confidence intervals (CIs) were calculated.
    RESULTS: Using PPIs to reduce the incidence of EAC and HGD has not been confirmed (OR, 0.61; 95% CI, 0.29-1.26). The pooled results of three cohort studies reported that PPIs use was protective (OR 0.48; 95% CI, 0.33-0.70). But the pooled results of five case-control study indicating PPIs use does not prove this protective effect (OR 0.73; 95% CI, 0.21-2.48). On pooled analysis of 4 US studies 2 Netherlands, protective effect on development of EAC and HGD was noted (OR, 0.59; 95% CI, 0.43-0.80) and (OR, 0.16; 95% CI, 0.03-0.75).
    CONCLUSIONS: According to the Meta analysis and TSA of existing studies, the protective effect of PPIs on the progression of BE patients to EAC and/or HGD has not been confirmed. TSA shows that more patients are needed before a clear conclusion can be reached.
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  • 文章类型: Journal Article
    背景:糖皮质激素治疗急性呼吸窘迫综合征(ARDS)和COVID-19的有效性仍不确定。由于ARDS是由于对直接损伤的高炎症反应,我们决定进行一项荟萃分析,并对随机临床试验(RCT)的稳健性进行评价,研究皮质类固醇对COVID-19和非COVID-19患者ARDS死亡率的影响.我们使用MEDLINE数据库和PubMed界面对文献进行了系统的搜索,直到2020年10月30日。我们使用2乘2列联表和Fisher精确检验产生的p值评估了所包括的RCT的脆弱性指数(FI);通过将FI得分除以试验的总样本量来计算脆弱性商(FQ)。
    结果:分析包括13项随机对照试验;其中5项是在COVID-19ARDS中进行的,包括7692名患者,在非COVIDARDS中进行了8次RCTS,对1091例患者进行了评估。ARDS的8个随机对照试验中有3个的FI>0,而COVID-19的5个随机对照试验中有2个的FI>0。ARDS的FI中位数为0.625(0.47),而FQ中位数为0.03(0.014)。COVID-19的FI中位数为6(2),FQ中位数为0.059(0.055)。在这次系统审查中,我们发现,评估ARDS和COVID-19患者使用糖皮质激素的RCT的FI和FQ较低.
    BACKGROUND: The effectiveness of corticosteroids in acute respiratory distress syndrome (ARDS) and COVID-19 still remains uncertain. Since ARDS is due to a hyperinflammatory response to a direct injury, we decided to perform a meta-analysis and an evaluation of robustness of randomised clinical trials (RCTs) investigating the impact of corticosteroids on mortality in ARDS in both COVID-19 and non-COVID-19 patients. We conducted a systematic search of the literature from inception up to 30 October 2020, using the MEDLINE database and the PubMed interface. We evaluated the fragility index (FI) of the included RCTs using a two-by-two contingency table and the p-value produced by the Fisher exact test; the fragility quotient (FQ) was calculated by dividing the FI score by the total sample size of the trial.
    RESULTS: Thirteen RCTs were included in the analysis; five of them were conducted in COVID-19 ARDS, including 7692 patients, while 8 RCTS were performed in non-COVID ARDS with 1091 patients evaluated. Three out of eight RCTs in ARDS had a FI > 0 while 2 RCTs out of five in COVID-19 had FI > 0. The median of FI for ARDS was 0.625 (0.47) while the median of FQ was 0.03 (0.014). The median of FI for COVID-19 was 6 (2) while the median of FQ was 0.059 (0.055). In this systematic review, we found that FI and FQ of RCTs evaluating the use of corticosteroids in ARDS and COVID-19 were low.
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  • 文章类型: Systematic Review
    CDK5调节亚基相关蛋白1-like1(CDKAL1)通过抑制CDK5的激活而促进胰岛β细胞功能和胰岛素分泌。目前关于CDKAL1多态性rs7756992A>G和rs7754840C>G与妊娠期糖尿病(GDM)风险关系的研究得出了矛盾的结论。
    使用固定或随机效应模型进行荟萃分析,以汇总比值比(OR)和95%置信区间(CI)评估所研究的CDKAL1多态性与GDM风险之间的相关性。此外,试验序贯分析(TSA)和假阳性报告概率(FPRP)分析证实了研究结果.
    本研究共纳入13,306名受试者。Meta分析结果表明,与野生型AA基因型相比,两种多态性的变异杂合和纯合基因型与GDM风险增加相关(AGvs.AA:OR=1.23,95%CI=1.08,1.41,p=0.002;GGvs.对于rs7756992,AA:OR=1.47,95%CI=1.05,2.05,p=0.024;CG与GG:OR=1.36,95%CI=1.13,1.65,p=0.002;CCvs.GG:OR=1.76,95%CI=1.37,2.26,rs7754840p<0.001)。TSA证实了rs7754840与GDM易感性之间的显着关联,因为累积Z曲线在杂合子和纯合子模型下跨越了常规截止值和TSA边界。
    本研究支持rs7756992和rs7754840与GDM易感性相关的发现。然而,需要进一步的功能研究来阐明机制.
    UNASSIGNED: The CDK5 regulatory subunit-associated protein 1-like 1 (CDKAL1) contributes to islet β-cell function and insulin secretion by inhibiting the activation of CDK5. The current studies on the relationship between CDKAL1 polymorphisms rs7756992 A>G and rs7754840 C>G and the risk of gestational diabetes mellitus (GDM) have drawn contradictory conclusions.
    UNASSIGNED: A meta-analysis with a fixed- or random-effects model was conducted to estimate the correlation between studied CDKAL1 polymorphisms and GDM risk with the summary odds ratio (OR) and 95% confidence interval (CI). In addition, trial sequential analysis (TSA) and false-positive report probability (FPRP) analysis were performed to confirm the study findings.
    UNASSIGNED: A total of 13,306 subjects were included in the present study. Meta-analysis results showed that the variant heterozygous and homozygous genotypes of the two polymorphisms were associated with increased GDM risk in comparison with the wild-type AA genotype (AG vs. AA: OR = 1.23, 95% CI = 1.08, 1.41, p = 0.002; GG vs. AA: OR = 1.47, 95% CI = 1.05, 2.05, p = 0.024 for rs7756992; and CG vs. GG: OR = 1.36, 95% CI = 1.13, 1.65, p = 0.002; CC vs. GG: OR = 1.76, 95% CI = 1.37, 2.26, p < 0.001 for rs7754840). The TSA confirmed a significant association between rs7754840 and the susceptibility to GDM because the cumulative Z-curve crossed both the conventional cutoff value and the TSA boundaries under the heterozygote and homozygote models.
    UNASSIGNED: This study supported the finding that rs7756992 and rs7754840 are associated with susceptibility to GDM. However, further functional studies are warranted to clarify the mechanism.
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