Sökning: "non-linear mixed effects modelling"

Visar resultat 1 - 5 av 16 avhandlingar innehållade orden non-linear mixed effects modelling.

  1. 1. Pharmacometric Investigations of Prediction Precision and Advances of Models for Composite Scale Data

    Författare :Gustaf Wellhagen; Maria C. Kjellsson; Bengt Hamrén; Per Olsson Gisleskog; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; pharmacometrics; modelling; non-linear mixed effects modelling; composite scale data; total score data; total score analysis; precision prediction; bounded integer; bounded integer model; IRT-informed total score analysis; item response theory-informed; mixed models for repeated measures; MMRM; dose-response; dose-response mixed models for repeated measures; DR-MMRM; HbA1c models; fit-for-purpose analysis; clinical trial analysis; Farmaceutisk vetenskap; Pharmaceutical Science;

    Sammanfattning : Clinical trials are needed to evaluate new treatments. In late-stage clinical trials, failures are mostly due to lack of efficacy. Fit-for-purpose analysis methods will likely increase the success rates and advance drug development by providing higher precision to support decisions such as go/no-go, dose selection, or sample size. LÄS MER

  3. 2. Semi-mechanistic models of glucose homeostasis and disease progression in type 2 diabetes

    Författare :Steve Choy; Maria Kjellsson; Mats Karlsson; Willem de Winter; Andrea Mari; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; pharmacokinetics; pharmacodynamics; pharmacometrics; glucose homeostasis; insulin; type 2 diabetes; obesity; weight; visceral adipose tissue; HbA1c; non-linear mixed effects; modelling; disease progression; ZDSD rats; Farmaceutisk vetenskap; Pharmaceutical Science;

    Sammanfattning : Type 2 diabetes mellitus (T2DM) is a metabolic disorder characterized by consistently high blood glucose, resulting from a combination of insulin resistance and reduced capacity of β-cells to secret insulin. While the exact causes of T2DM is yet unknown, obesity is known to be a major risk factor as well as co-morbidity for T2DM. LÄS MER

  4. 3. Pharmacometrics to characterize innate immune response and antibacterial treatments

    Författare :Anders Thorsted; Lena E. Friberg; Elisabet I. Nielsen; Mats O. Karlsson; Gauri G. Rao; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; pharmacometrics; non-linear mixed effects modelling; modelling; pharmacokinetics; pharmacodynamics; pkpd; antibiotics; cefuroxime; piperacillin; phagocytes; lipopolysaccharide; endotoxin; porcine endotoxemia; challenge studies; sepsis; critically ill; Farmaceutisk vetenskap; Pharmaceutical Science;

    Sammanfattning : The immune system protects the host against pathogens by distinguishing self from non-self. However, it is most-often disregarded in pharmacokinetic-pharmacodynamic (PKPD) characterization of (new and old) antibiotics. LÄS MER

  5. 4. Mixed Effects Modelling and Optimal Design of TNFα Response in LPS Challenge Studies - Methods and Applications in Drug Discovery

    Författare :Julia Larsson; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; pharmacodynamics; pharmacokinetics; non-linear mixed effects modelling; lipopolysaccharides; tumour necrosis factor alpha; optimal design;

    Sammanfattning : ''Endotoxin and mycoplasma are Nature’s darkest secrets. If they are ever solved, Hell itself will open.'' - Lewis Thomas* Endotoxin, or lipopolysaccharides (LPS), are heterogeneous components from the cell wall of Gram-Negative bacteria and a common challenger in the field of drug discovery. LÄS MER

  7. 5. Study Design and Dose Regimen Evaluation of Antibiotics based on Pharmacokinetic and Pharmacodynamic Modelling

    Författare :Anders Kristoffersson; Lena Friberg; Mats Karlsson; Pernilla Lagerbäck; Otto Cars; Stephan Schmidt; Uppsala universitet; []
    Nyckelord :pharmacometric; optimal design; pharmacokinetics; pharmacodynamics; PKPD; resistance; antibiotics; modeling; time-kill curve; colistin; meropenem; ciprofloxacin; non-linear mixed effects models; bayesian; Farmaceutisk vetenskap; Pharmaceutical Science;

    Sammanfattning : Current excessive use and abuse of antibiotics has resulted in increasing bacterial resistance to common treatment options which is threatening to deprive us of a pillar of modern medicine. In this work methods to optimize the use of existing antibiotics and to help development of new antibiotics were developed and applied. LÄS MER