Search Results - "Hilgers, Ralf‐Dieter"
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Intensive Supportive Care plus Immunosuppression in IgA Nephropathy
Published in The New England journal of medicine (03-12-2015)“…This open-label trial randomly assigned patients with IgA nephropathy to supportive care or supportive care plus immunosuppression. The added immunosuppression…”
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2
randomizeR : An R Package for the Assessment and Implementation of Randomization in Clinical Trials
Published in Journal of statistical software (01-06-2018)“…Randomization in clinical trials is the key design technique to ensure the comparability of treatment groups. Although there exist a large number of software…”
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3
Innovative methodologies for rare diseases clinical trials
Published in Orphanet journal of rare diseases (07-05-2024)Get full text
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4
Confidence interval comparison: Precision of maximum likelihood estimates in LLOQ affected data
Published in PloS one (02-11-2023)“…When data is derived under a single or multiple lower limits of quantification (LLOQ), estimation of distribution parameters as well as precision of these…”
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5
Designing Clinical Trials in Wilson’s Disease
Published in Hepatology (Baltimore, Md.) (01-12-2021)“…Background and Aims Wilson’s disease (WD) is an autosomal‐recessive disorder caused by ATP7B gene mutations leading to pathological accumulation of copper in…”
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Recommendations for the design of small population clinical trials
Published in Orphanet journal of rare diseases (06-11-2018)“…Orphan drug development faces numerous challenges, including low disease prevalence, patient population heterogeneity, and strong presence of paediatric…”
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The impact of selection bias in randomized multi-arm parallel group clinical trials
Published in PloS one (31-01-2018)“…The impact of selection bias on the results of clinical trials has been analyzed extensively for trials of two treatments, yet its impact in multi-arm trials…”
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A roadmap to using randomization in clinical trials
Published in BMC medical research methodology (16-08-2021)“…Randomization is the foundation of any clinical trial involving treatment comparison. It helps mitigate selection bias, promotes similarity of treatment groups…”
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Observations below multiple lower limits of quantification: How to estimate the mean and variance
Published in Biometrical journal (01-09-2019)“…Multiple lower limits of quantification (MLOQs) result if various laboratories are involved in the analysis of concentration data and some observations are too…”
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10
Progression characteristics of the European Friedreich’s Ataxia Consortium for Translational Studies (EFACTS): a 2 year cohort study
Published in Lancet neurology (01-12-2016)“…Summary Background The European Friedreich’s Ataxia Consortium for Translational Studies (EFACTS) is a prospective international registry investigating the…”
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11
Zinc supplementation induces regulatory T cells by inhibition of Sirt‐1 deacetylase in mixed lymphocyte cultures
Published in Molecular nutrition & food research (01-03-2016)“…SCOPE: Zinc is an essential trace element, regulating immune function. Its deficiency results in immune dysfunction and transplant rejection. In here, a…”
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12
Differences in degradation behavior of two non-cross-linked collagen barrier membranes: an in vitro and in vivo study
Published in Clinical oral implants research (01-12-2014)“…Objectives Collagen barrier membranes are used in guided bone regeneration/guided tissue regeneration because of their excellent bio‐ and cytocompatibility…”
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13
ERDO - a framework to select an appropriate randomization procedure for clinical trials
Published in BMC medical research methodology (04-12-2017)“…Randomization is considered to be a key feature to protect against bias in randomized clinical trials. Randomization induces comparability with respect to…”
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14
Assessing the impact of selection bias on test decisions in trials with a time‐to‐event outcome
Published in Statistics in medicine (30-07-2017)“…If past treatment assignments are unmasked, selection bias may arise even in randomized controlled trials. The impact of such bias can be measured by…”
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Responsiveness of the Scale for the Assessment and Rating of Ataxia and Natural History in 884 Recessive and Early Onset Ataxia Patients
Published in Annals of neurology (01-09-2023)“…Objective The Scale for the Assessment and Rating of Ataxia (SARA) is the most widely applied clinical outcome assessment (COA) for genetic ataxias, but…”
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Composite endpoints, including patient reported outcomes, in rare diseases
Published in Orphanet journal of rare diseases (01-09-2023)“…When assessing the efficacy of a treatment in any clinical trial, it is recommended by the International Conference on Harmonisation to select a single…”
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Randomization in survival studies: An evaluation method that takes into account selection and chronological bias
Published in PloS one (03-06-2019)“…The random allocation of patients to treatments is a crucial step in the design and conduct of a randomized controlled trial. For this purpose, a variety of…”
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Istore: a project on innovative statistical methodologies to improve rare diseases clinical trials in limited populations
Published in Orphanet journal of rare diseases (02-03-2024)“…The conduct of rare disease clinical trials is still hampered by methodological problems. The number of patients suffering from a rare condition is variable,…”
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Implant placement under existing removable dental prostheses and its effect on oral health-related quality of life
Published in Clinical oral implants research (01-12-2013)“…Objective One aim of this prospective clinical study was to measure the effects of strategicimplant placement under removable partial dental prostheses (RPDPs)…”
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Laterally closed tunnel technique with and without adjunctive photobiomodulation therapy for the management of isolated gingival recession—a randomized controlled assessor-blinded clinical trial
Published in Lasers in medical science (01-04-2022)“…The objective of this prospective randomized controlled single-center clinical trial was to prove the efficacy of adjunctive photobiomodulation in improving…”
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