Search Results - "Hilgers, Ralf‐Dieter"

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  1. 1

    Intensive Supportive Care plus Immunosuppression in IgA Nephropathy by Rauen, Thomas, Eitner, Frank, Fitzner, Christina, Sommerer, Claudia, Zeier, Martin, Otte, Britta, Panzer, Ulf, Peters, Harm, Benck, Urs, Mertens, Peter R, Kuhlmann, Uwe, Witzke, Oliver, Gross, Oliver, Vielhauer, Volker, Mann, Johannes F.E, Hilgers, Ralf-Dieter, Floege, Jürgen

    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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    Journal Article
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    randomizeR : An R Package for the Assessment and Implementation of Randomization in Clinical Trials by Uschner, Diane, Schindler, David, Hilgers, Ralf-Dieter, Heussen, Nicole

    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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    Confidence interval comparison: Precision of maximum likelihood estimates in LLOQ affected data by Bülow, Tanja, Hilgers, Ralf-Dieter, Heussen, Nicole

    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. 5

    Designing Clinical Trials in Wilson’s Disease by Ott, Peter, Ala, Aftab, Askari, Frederick K., Czlonkowska, Anna, Hilgers, RalfDieter, Poujois, Aurélia, Roberts, Eve A., Sandahl, Thomas Damgaard, Weiss, Karl Heinz, Ferenci, Peter, Schilsky, Michael L.

    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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  6. 6

    Recommendations for the design of small population clinical trials by Day, Simon, Jonker, Anneliene Hechtelt, Lau, Lilian Pek Lian, Hilgers, Ralf-Dieter, Irony, Ilan, Larsson, Kristina, Roes, Kit Cb, Stallard, Nigel

    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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  7. 7

    The impact of selection bias in randomized multi-arm parallel group clinical trials by Uschner, Diane, Hilgers, Ralf-Dieter, Heussen, Nicole

    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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  8. 8

    A roadmap to using randomization in clinical trials by Berger, Vance W, Bour, Louis Joseph, Carter, Kerstine, Chipman, Jonathan J, Everett, Colin C, Heussen, Nicole, Hewitt, Catherine, Hilgers, Ralf-Dieter, Luo, Yuqun Abigail, Renteria, Jone, Ryeznik, Yevgen, Sverdlov, Oleksandr, Uschner, Diane

    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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  9. 9

    Observations below multiple lower limits of quantification: How to estimate the mean and variance by Berger, Tanja, Hilgers, RalfDieter, Heussen, Nicole

    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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    Zinc supplementation induces regulatory T cells by inhibition of Sirt‐1 deacetylase in mixed lymphocyte cultures by Rosenkranz, Eva, Metz, Claudia H.D, Maywald, Martina, Hilgers, RalfDieter, Weßels, Inga, Senff, Tina, Haase, Hajo, Jäger, Maximilian, Ott, Melanie, Aspinall, Richard, Plümäkers, Birgit, Rink, Lothar

    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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    Differences in degradation behavior of two non-cross-linked collagen barrier membranes: an in vitro and in vivo study by Bozkurt, Ahmet, Apel, Christian, Sellhaus, Bernd, van Neerven, Sabien, Wessing, Bastian, Hilgers, Ralf-Dieter, Pallua, Norbert

    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. 13

    ERDO - a framework to select an appropriate randomization procedure for clinical trials by Hilgers, Ralf-Dieter, Uschner, Diane, Rosenberger, William F, Heussen, Nicole

    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. 14

    Assessing the impact of selection bias on test decisions in trials with a time‐to‐event outcome by Rückbeil, Marcia Viviane, Hilgers, RalfDieter, Heussen, Nicole

    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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    Composite endpoints, including patient reported outcomes, in rare diseases by Verbeeck, Johan, Dirani, Maya, Bauer, Johann W, Hilgers, Ralf-Dieter, Molenberghs, Geert, Nabbout, Rima

    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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  17. 17

    Randomization in survival studies: An evaluation method that takes into account selection and chronological bias by Rückbeil, Marcia Viviane, Hilgers, Ralf-Dieter, Heussen, Nicole

    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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  18. 18

    Istore: a project on innovative statistical methodologies to improve rare diseases clinical trials in limited populations by Schoenen, Stefanie, Verbeeck, Johan, Koletzko, Lukas, Brambilla, Isabella, Kuchenbuch, Mathieu, Dirani, Maya, Zimmermann, Georg, Dette, Holger, Hilgers, Ralf-Dieter, Molenberghs, Geert, Nabbout, Rima

    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 by Wolfart, Stefan, Moll, Daniel, Hilgers, Ralf-Dieter, Wolfart, Mona, Kern, Matthias

    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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  20. 20

    Laterally closed tunnel technique with and without adjunctive photobiomodulation therapy for the management of isolated gingival recession—a randomized controlled assessor-blinded clinical trial by Lavu, Vamsi, Gutknecht, Norbert, Vasudevan, Amrutha, S.K, Balaji, Hilgers, Ralf-Dieter, Franzen, Rene

    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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