Search for dissertations about: "Siv Jönsson"

Found 5 swedish dissertations containing the words Siv Jönsson.

2. 1. Estimation of Dosing Strategies for Individualisation

   Author : Siv Jönsson; Mats O. Karlsson; Leon Aarons; Uppsala universitet; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Pharmaceutical biosciences; Dosing strategy; Individualisation; Pharmacokinetic; Pharmacodynamic; Modeling; NONMEM; Decision making; Farmaceutisk biovetenskap; Biopharmacy; Biofarmaci;

   Abstract : To increase the proportion of patients with successful drug treatment, dose individualisation on the basis of one or several patient characteristics, a priori individualisation, and/or on the basis of feedback observations from the patient following an initial dose, a posteriori individualisation, is an option. Efficient tools in optimising individualised dosing strategies are population models describing pharmacokinetics (PK) and the relation between pharmacokinetics and pharmacodynamics (PK/PD). READ MORE

4. 2. Pharmacometric Approaches to Improve Dose Individualization Methods in Hemophilia A

   Author : João A. Abrantes; Mats Karlsson; Elisabet I. Nielsen; Siv Jönsson; Ron Mathôt; Uppsala universitet; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Bayesian forecasting; coagulation factor VIII; dose adaptation; hemophilia haemophilia A; inter-occasion variability; NONMEM; pharmacodynamics; pharmacokinetics; pharmacometrics; therapeutic drug monitoring; Farmaceutisk vetenskap; Pharmaceutical Science;

   Abstract : Hemophilia A is a bleeding disorder caused by the lack of functional coagulation factor VIII (FVIII). The overall aim of this thesis was to improve dose individualization of FVIII replacement therapy in hemophilia A using pharmacometric approaches. READ MORE

5. 3. Pharmacometric models in the development of biological medicinal products

   Author : Ari Brekkan; Mats Karlsson; Siv Jönsson; Philip Lowe; Uppsala universitet; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Pharmacometrics; model-based analysis; NONMEM; population modelling.;

   Abstract : Biological medicinal products (BMPs) are a successful class of drugs that are indicated in numerous diseases.  Common among them is that complexities associated with their manufacture and analysis lead to a high cost compared to small-molecular weight drugs. READ MORE

6. 4. Methodological Studies on Models and Methods for Mixed-Effects Categorical Data Analysis

   Author : Maria C. Kjellsson; Mats O. Karlsson; Siv Jönsson; Gordon Graham; Uppsala universitet; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Pharmacodynamics; Categorical data; Markov model; Modelling; NONMEM; NLMIXED; Laplace; Gaussian quadrature; Back-Step Method; Proportional odds model; Differential odds model;

   Abstract : Effects of drugs are in clinical trials often measured on categorical scales. These measurements are increasingly being analyzed using mixed-effects logistic regression. However, the experience with such analyzes is limited and only a few models are used. READ MORE

7. 5. Improved pharmacometric model building techniques

   Author : Radojka Savic; Mats Karlsson; Siv Jönsson; Matt Hutmacher; Uppsala universitet; []
   Keywords : Model building; Absorption model; Transit compartment model; Nonparametric method; Extended grid method; Semiparametric; Distribution transformation; Shrinkage; Model diagnostics;

   Abstract : Pharmacometric modelling is an increasingly used method for analysing the outcome from clinical trials in drug development. The model building process is complex and involves testing, evaluating and diagnosing a range of plausible models aiming to make an adequate inference from the observed data and predictions for future studies and therapy. READ MORE