non-inferiority trials
Non-Inferiority Trials in Surgical Oncology
... a non-inferiority trial may not address the efficacy of the treatments under investigation, but it does assess whether any differ- ence in efficacy between the treatments is significantly less than the chosen ...
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The use of randomisation based efficacy estimators in non inferiority trials
... in non-inferiority ...clinical trials involving patients in remission with ulcerative colitis (CODA) and breast can- cer with bone metastases (ZICE) using standard statis- tical ...
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Evidence-based sizing of non-inferiority trials using decision models
... for non-inferiority trials depends on the trade-off between lower LY because of lower ef- fectiveness and increase in quality-of-life because of reduced burden of the alternative ...modest ...
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Efficacy of experimental treatments compared with standard treatments in non-inferiority trials: a meta-analysis of randomized controlled trials
... superiority trials, it has repeatedly been described how the outcome may be skewed in favour of the experimental treatment by making con- venient choices when designing the study or reporting or publishing the ...
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Group Sequential and Adaptive Designs for Three-Arm 'Gold Standard' Non-Inferiority Trials
... three-arm non-inferiority trials this will also give us the ability to account for uncertainties regarding the treatment effects, which often exist in the planning stage of such ...
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Sample size recalculation in three-arm non-inferiority trials
... uncertainty in key factors that drive the sample size estimation. In addition, the conventional fixed sample design may not be efficient as the recruitment of patients usually takes a period of time and the data become ...
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Phase IV non-inferiority trials and additional claims of benefit
... NI trials that were published and indexed in ...NI trials, will differ much with addition of those new articles in our ...IV trials could be described as superiority trials in PUBMED and the ...
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Practical guide to sample size calculations: non-inferiority and equivalence trials
... for non-inferiority trials at half that for superiority trials is ...most trials, what we have is a one-sided investigation with a ...superiority trials as a one-sided test - ...
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Robust designs in non-inferiority three arm clinical trials with presence of heteroscedasticity
... clinical trials depend on the ratios of the population variances, which are not available before the ...three-arm non-inferiority trials which is less sensitive to such misspecifica- ...
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Methodological standards in non-inferiority AIDS trials: moving from adherence to compliance
... surrounding non- inferiority trials have long been well recognized and extensively reported in many medical settings, including human immunodeficiency virus infection (HIV) ...of ...
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Testing non-inferiority of a new treatment in three-arm clinical trials with binary endpoints
... pre-specified non-inferiority margin due to ethical ...the non-inferiority margin and establishment of assay sensitivity are two major issues in the design, analysis and interpretation for ...
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Methods of defining the non inferiority margin in randomized, double blind controlled trials: a systematic review
... Methods: A systematic PubMed search was conducted for all published randomized, double-blind, non-inferiority trials from January 1, 1966, to February 6, 2015. The primary outcome was the number of ...
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Pivotal trials of orthopedic surgical devices in the United States: predominance of two arm non inferiority designs
... to non-inferiority ...of non-inferiority trials. Of the 13 non-inferiority studies in the sample, most had significant debate re- garding one or more of the subtopics: ...
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Through the looking glass: understanding non inferiority
... The FDA Guidance suggests a preference for so-called ‘ random-effects models ’ in meta-analyses that will be used to establish the margin in non-inferiority trials. These models, in contrast to the ...
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Methods for strengthening the design and analysis of clinical trials to show non-inferiority of a new treatment to a reference treatment for a binary response variable
... three-arm non-inferiority trials, the sample size should be allocated according to economic feasibility, power related to the non-inferiority hypothesis, and ethical arguments when ...
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Superiority and non inferiority: two sides of the same coin?
... is non-regulatory trials with a public health ...or non-inferiority trials is not always ...and non-inferiority trials are unconvincing when examined in ...the ...
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Non inferiority versus superiority drug claims: the (not so) subtle distinction
... text: Non-inferiority trials allow for the conclusion of: (a) non-inferiority of Test to Control if Test is slightly worse than Control but by no more than M ; and (b) superiority if ...
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A non-inferiority study to analyze the safety of totally tubeless percutaneous nephrolithotomy
... prove non-inferiority, it must be shown that the CI of the difference between means does not include pre- defined ...the non-inferiority limit of 1 g/dL. Usually, non-inferiority ...
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What are non-inferiority drug trials?
... Assay sensitivity is defined as the ability of an RCT to distinguish an effective treatment from an ineffective treatment. A drug is considered effective if it shows a significant treatment effect as compared with ...
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Guidance for Industry Non-Inferiority Clinical Trials
... various trials 1544 ...controlled trials (unless a trial has a significant 1552 defect), including trials conducted after marketing, to calculate a reasonable estimate of 1553 the actual control ...
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