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- W4221144008 abstract "The oral route is the most common choice for drug administration because of convenience, low cost, and high patient compliance, but is also a complex route. The rate of dissolution and gastric emptying of the dissolved active pharmaceutical ingredient (API) into the duodenum is modulated by factors such as gastric motility, but current in-vitro procedures for assessing drug dissolution are limited in their ability to recapitulate this process. This is particularly relevant for disease conditions, such as gastroparesis, that alter the anatomy and/or physiology of the stomach. In this study we employ a biomimetic in-silico simulator based on the realistic anatomy and morphology of the stomach, to investigate the effect of body posture and stomach motility on drug bioavailability. The simulations show that changes in posture can have a significant (up to 83%) effect on the emptying rate of the API into the duodenum. Similarly, reduction in antral contractility associated with gastroparesis can also significantly reduce the dissolution of the pill as well as emptying of the API into the duodenum. The simulations show that for an equivalent motility index, reduction in gastric emptying due to neuropathic gastroparesis is larger by a factor of about five compared to myopathic gastroparesis." @default.
- W4221144008 created "2022-04-03" @default.
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- W4221144008 date "2022-01-21" @default.
- W4221144008 modified "2023-10-08" @default.
- W4221144008 title "Computational model of drug dissolution in the stomach: effects of posture and gastroparesis on drug bioavailability" @default.
- W4221144008 doi "https://doi.org/10.48550/arxiv.2201.08736" @default.
- W4221144008 hasPublicationYear "2022" @default.
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