98%
921
2 minutes
20
Physiologically based pharmacokinetic (PBPK) modelling for biologics, such as monoclonal antibodies and therapeutic proteins, involves capturing complex processes, including target-mediated drug disposition (TMDD), FcRn-mediated recycling, and tissue-specific distribution. The Simcyp Designer Biologics PBPK Platform Model offers an intuitive and efficient platform for constructing mechanistic PBPK models with pre-defined templates and automated model assembly, reducing manual input and improving reproducibility. This tutorial provides a step-by-step guide to using the platform, highlighting features such as cross-species scaling, population variability simulations, and flexibility for model customization. Practical case studies demonstrate the platform's capability to streamline workflows, enabling rapid, mechanistic model development to address key questions in biologics drug development. By automating critical processes, this tool enhances decision-making in translational research, optimizing the modelling and simulation of large molecules across discovery and clinical stages.
Download full-text PDF |
Source |
---|---|
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC12115112 | PMC |
http://dx.doi.org/10.3390/pharmaceutics17050604 | DOI Listing |
AAPS J
September 2025
Clinical Pharmacology Laboratory, Clinical Center, National Institutes of Health, 9000 Rockville Pike, Building 10, Room 5A03, Bethesda, Maryland, 20892, USA.
Antibody-drug conjugates (ADCs) represent a rapidly expanding class of therapeutics, uniquely combining the specificity of monoclonal antibodies with the potency of cytotoxic small-molecule payloads. Due to their inherent structural complexity and heterogeneous composition, accurate characterization and quantification of ADCs pose significant bioanalytical challenges. This review discusses recent advancements in bioanalytical methodologies, including ligand binding assays (LBAs), liquid chromatography-tandem mass spectrometry (LC-MS/MS)-based approaches, and emerging hybrid LBA-LC-MS/MS platforms.
View Article and Find Full Text PDFJ Pharmacokinet Pharmacodyn
September 2025
Centre for Applied Pharmacokinetic Research (CAPKR), University of Manchester, Manchester, UK.
Concentration-dependent binding to red blood cells is a characteristic of several drugs, complicating the understanding of how pathophysiological factors influence drug behavior. This study utilized user-friendly, physiologically-based pharmacokinetic (PBPK) models to compare concentration-dependent and independent blood-to-plasma drug concentration ratios (B/P), using tacrolimus as a case study. Two models were developed and validated for tacrolimus using clinical data from healthy volunteers; Model 1 accounted for saturable blood binding, and Model 2 used a constant B/P level.
View Article and Find Full Text PDFAAPS J
September 2025
Pharmaceutical Science, Pfizer Worldwide Research and Development, 445 Eastern Point Road, Groton, Connecticut, 06340, USA.
A virtual bioequivalence (VBE) approach utilizing physiologically based pharmacokinetic (PBPK) modeling presents a compelling alternative for pharmaceutical industries. This method can significantly reduce the time and cost associated with clinical bioequivalence (BE) trials while minimizing the risk of detecting a type II error (a false negative), as well as a type I error (a false positive). Additionally, it aligns with ethical considerations by obviating the need to expose healthy volunteers to investigational drugs.
View Article and Find Full Text PDFAAPS J
September 2025
Certara Predictive Technologies, Certara, Sheffield, UK.
In vitro permeation testing (IVPT) is commonly used to assess dermal drug delivery, yet its utility can be challenged by high variability and the need for large sample sizes to achieve sufficient statistical power. Dermal physiologically based pharmacokinetic (PBPK) models provide a mechanistic approach to better interpret IVPT results and to extrapolate in vitro to in vivo. In the present work, a dermal PBPK model for caffeine was developed using a bottom-up approach with minimal parameter optimization.
View Article and Find Full Text PDFBiol Pharm Bull
August 2025
Showa Pharmaceutical University, Machida, Tokyo 194-8543, Japan.
The broad-spectrum antifungal agent voriconazole elicits different responses. Polymorphisms in cytochrome P450 (P450) 2C19 may partially explain this variability. This study generated virtual plasma/hepatic exposures to voriconazole in Japanese P450 2C19 poor metabolizers using both simplified and population-based full physiologically based pharmacokinetic (PBPK) modeling systems.
View Article and Find Full Text PDF