Publications by authors named "R Leisegang"

Immunogenicity is the propensity of a therapeutic protein to generate an immune response to itself. While reporting of antidrug antibodies (ADAs) is increasing, model-based analysis of such data is seldom performed. Model-based characterization of factors affecting the emergence and dissipation of ADAs may inform drug development and/or improve understanding in clinical practice.

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Background: Coformulated bictegravir, emtricitabine, and tenofovir alafenamide is a single-tablet regimen and was efficacious and well tolerated in children and adolescents with HIV (aged 6 years to <18 years) in a 48-week phase 2/3 trial. In this study, we report data from children aged at least 2 years and weighing 14 kg to less than 25 kg.

Methods: We conducted this open-label, multicentre, multicohort, single-arm study in South Africa, Thailand, Uganda, and the USA.

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Article Synopsis
  • The UNIVERSAL project aims to develop a fixed-dose combination of paediatric dolutegravir (DTG), emtricitabine (FTC), and tenofovir alafenamide (TAF) to improve dosing for children.
  • A study on 15 healthy volunteers tested the pharmacokinetics (PK) of these medications combined in various doses, assessing blood concentration differences over 48 hours.
  • Results indicated no significant PK interactions with DTG, FTC, and tenofovir (TFV), although TAF showed variability, leading to a conclusion that the formulations are safe for use without clinically relevant interactions.
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The prevalence of diabetes mellitus is increasing in resource limited settings. Simultaneously, there has been an increase in the number of novel therapies for the management of diabetes mellitus. However, use of novel antidiabetic therapies is limited because of major market access challenges in resource limited settings.

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