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In Vivo Predictive Dissolution (IPD) and Biopharmaceutical Modeling and Simulation: Future Use of Modern Approaches
H Lennernäs1, A Lindahl2, A Van Peer3
1Department of Pharmacy, Uppsala University , Uppsala, Sweden.
The OrBiTo project is developing biopharmaceutics tools to optimize oral drug development. Combining in vitro dissolution tests and in silico models enhances gastrointestinal absorption predictions for regulatory use.
Area of Science:
- Pharmacokinetics and Drug Metabolism
- Biopharmaceutics
- Computational Modeling
Background:
- The Innovative Medicines Initiative (IMI) OrBiTo project aims to optimize oral drug product development.
- Current biopharmaceutics tools require enhanced understanding of gastrointestinal (GI) physiology for accurate drug absorption predictions.
Purpose of the Study:
- To streamline and optimize oral drug development using advanced biopharmaceutics tools.
- To integrate experimental and computational models for predicting GI drug absorption in fasted and fed states.
Main Methods:
- Development of physiologically based pharmacokinetic (PBPK) in silico models.
- Implementation of in vivo predictive dissolution (IPD) tests.
- Investigating GI fluid dynamics, supersaturation, precipitation, and food effects.
Main Results:
- Progress in developing regulatory applications for PBPK modeling and IPD tests for biowaivers.
- Identification of areas for improving in vitro dissolution testing to better reflect intraluminal GI conditions.
- Highlighting the potential of combining IPD testing with in silico models for absorption predictions.
Conclusions:
- A gap exists between industrial use of predictive tools and their regulatory inclusion.
- Stakeholders show significant interest in incorporating advanced GI drug absorption prediction methods into regulatory frameworks.
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