[HTML][HTML] Impact of gastrointestinal tract variability on oral drug absorption and pharmacokinetics: An UNGAP review

Z Vinarov, M Abdallah, JAG Agundez… - European Journal of …, 2021 - Elsevier
The absorption of oral drugs is frequently plagued by significant variability with potentially
serious therapeutic consequences. The source of variability can be traced back to …

[HTML][HTML] Current challenges and future perspectives in oral absorption research: An opinion of the UNGAP network

Z Vinarov, B Abrahamsson, P Artursson… - Advanced Drug Delivery …, 2021 - Elsevier
Although oral drug delivery is the preferred administration route and has been used for
centuries, modern drug discovery and development pipelines challenge conventional …

[HTML][HTML] Fasted and fed state human duodenal fluids: Characterization, drug solubility, and comparison to simulated fluids and with human bioavailability

D Dahlgren, M Venczel, JP Ridoux, C Skjöld… - European journal of …, 2021 - Elsevier
Accurate in vivo predictions of intestinal absorption of low solubility drugs require knowing
their solubility in physiologically relevant dissolution media. Aspirated human intestinal …

Physiologically‐based pharmacokinetic modeling to support determination of bioequivalence for dermatological drug products: scientific and regulatory …

E Tsakalozou, K Alam, A Babiskin… - Clinical Pharmacology & …, 2022 - Wiley Online Library
Physiologically‐based pharmacokinetic (PBPK) modeling and simulation provides
mechanism‐based predictions of the pharmacokinetics of an active ingredient following its …

Ingestible devices for studying the gastrointestinal physiology and their application in oral biopharmaceutics

W Weitschies, L Müller, M Grimm, M Koziolek - Advanced Drug Delivery …, 2021 - Elsevier
Ingestible sensor systems are unique tools for obtaining physiological data from an
undisturbed gastrointestinal tract. Since their dimensions correspond to monolithic oral …

[HTML][HTML] The impact of advanced age on gastrointestinal characteristics that are relevant to oral drug absorption: An AGePOP review

C Stillhart, A Asteriadis, E Bocharova, G Eksteen… - European Journal of …, 2023 - Elsevier
The purpose of this review is to summarize the current knowledge on three physiological
determinants of oral drug absorption, ie, gastric emptying, volumes and composition of …

[HTML][HTML] Integration of advanced methods and models to study drug absorption and related processes: An UNGAP perspective

CG Wilson, L Aarons, P Augustijns, J Brouwers… - European Journal of …, 2022 - Elsevier
This collection of contributions from the European Network on Understanding
Gastrointestinal Absorption-related Processes (UNGAP) community assembly aims to …

Characterization of neonatal and infant enterostomy fluids

T de Waal, J Brouwers, R Mols, I Hoffman… - International Journal of …, 2023 - Elsevier
The composition of gastrointestinal (GI) fluids is crucial for the dissolution, solubilization, and
absorption of orally administered drugs. Disease-or age-related changes in GI fluid …

Biorelevant dissolution method considerations for the appropriate evaluation of amorphous solid dispersions: are two stages necessary?

Z Wang, H Lou, TJ Dening, MJ Hageman - Journal of Pharmaceutical …, 2023 - Elsevier
Biorelevant dissolution testing has been widely used to better understand a drug or
formulation's behavior in the human gastrointestinal (GI) tract. The successful evaluation of …

Dissolution challenges associated with the surface pH of drug particles: integration into mechanistic oral absorption modeling

B Hens, N Seegobin, M Bermejo, Y Tsume, N Clear… - The AAPS Journal, 2022 - Springer
The present work aimed to differentiate between in vitro dissolution profiles of ibuprofen as
input for GastroPlus™ and to see the impact on systemic exposure. In vitro dissolution …