Journal
PHARMACEUTICS
Volume 13, Issue 7, Pages -Publisher
MDPI
DOI: 10.3390/pharmaceutics13071006
Keywords
oral biopharmaceutical delivery; pharmacokinetics and pharmacodynamics; hepatic portal vasculature
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Oral delivery of protein or peptide therapeutics faces challenges due to discrepancies in pharmacokinetic and pharmacodynamic outcomes compared to parenteral routes, highlighting the need for reevaluation of methods and criteria to measure drug effectiveness.
Due to a lack of safe and effective oral delivery strategies for most protein and peptide therapeutics, pharmaceutical drug developers have focused on parenteral routes to administer these agents. Recent advances in delivery technologies have now shown clinical validation for a few of these biopharmaceuticals following oral administration. While these initial opportunities have provided more than just a glimmer of hope within the industry, there are important aspects of oral biopharmaceutical delivery that do not completely align with pharmacokinetic (PK) parameters and pharmacodynamics (PD) outcomes that have been learned from parenteral administrations. This commentary examines some of these issues with the goal of presenting a rationale for re-assessing methods, models, and success criteria to better measure oral protein or peptide delivery outcomes related to PK/PD events.
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