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  • Title: Exploring gastric emptying rate in minipigs: Effect of food type and pre-dosing of metoclopramide.
    Author: Henze LJ, Griffin BT, Christiansen M, Bundgaard C, Langguth P, Holm R.
    Journal: Eur J Pharm Sci; 2018 Jun 15; 118():183-190. PubMed ID: 29559403.
    Abstract:
    The present study investigated the gastric emptying rate in Göttingen minipigs pre- and post-prandial and evaluated the effect of metoclopramide on the same parameter, using paracetamol as an absorption marker. The pharmacokinetic evaluation of the obtained plasma concentration data for paracetamol demonstrated that the fastest gastric emptying rate was observed in the animals that were allowed access to normal pig food. There was no significant difference in the stomach emptying rate observed between fasted and fed minipigs, when fed either with a FDA standard breakfast or a nutritional energy drink. Pre-dosing minipigs with metoclopramide (0.2 or 0.4 mg/kg) did not demonstrate any effect on gastric emptying in either the fasted or fed state. The data in the present study demonstrated a relatively prolonged gastric emptying rate in mini-pigs both in the fasted and fed state, hence when conducting pharmacokinetic studies using minipigs, this should be taken into account when planning the plasma sampling time points. Further, as no difference could be observed in gastric emptying rate as a function of food, the data also suggest that the Göttingen mini-pigs seems less suited to predict for food effect studies than other species.
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