2018
DOI: 10.1126/scitranslmed.aar7047
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Transcellular stomach absorption of a derivatized glucagon-like peptide-1 receptor agonist

Abstract: Oral administration of therapeutic peptides is hindered by poor absorption across the gastrointestinal barrier and extensive degradation by proteolytic enzymes. Here, we investigated the absorption of orally delivered semaglutide, a glucagon-like peptide-1 analog, coformulated with the absorption enhancer sodium N-[8-(2-hydroxybenzoyl) aminocaprylate] (SNAC) in a tablet. In contrast to intestinal absorption usually seen with small molecules, clinical and preclinical dog studies revealed that absorption of sema… Show more

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Cited by 347 publications
(359 citation statements)
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“…Semaglutide (Novo Nordisk, Denmark) is a long‐acting human GLP‐1 analogue, which can be administered once weekly subcutaneously (s.c.), or once daily orally when co‐formulated with the absorption enhancer sodium N‐(8‐[2‐hydroxybenzoyl] amino) caprylate (commonly known as ‘SNAC’) . The half‐life (~7 days) and clinical effects of semaglutide are similar irrespective of mode of administration .…”
Section: Introductionmentioning
confidence: 99%
“…Semaglutide (Novo Nordisk, Denmark) is a long‐acting human GLP‐1 analogue, which can be administered once weekly subcutaneously (s.c.), or once daily orally when co‐formulated with the absorption enhancer sodium N‐(8‐[2‐hydroxybenzoyl] amino) caprylate (commonly known as ‘SNAC’) . The half‐life (~7 days) and clinical effects of semaglutide are similar irrespective of mode of administration .…”
Section: Introductionmentioning
confidence: 99%
“…The low intestinal permeability of most peptides is related to their large size, low lipophilicity, and extensive hydrogen binding, all of which are physicochemical properties that predict low passive membrane transport [39]. A strategy to circumvent low intestinal permeability was recently approved for the first time in an oral product, for which a PE increased the intestinal membrane transport of semaglutide, a pharmaceutical peptide containing 31 amino acids, even though the bioavailability in dog is as low as 0.29% of the oral dose (data from patent: wo2012080471) [6]. The use of PEs has also been proposed in the colon, as the low luminal volumes and long transit time allow for high local mucosal PE concentrations at extended exposure times.…”
Section: Discussionmentioning
confidence: 99%
“…The rat SPIP model may also be used to investigate regional intestinal differences in how pharmaceutical excipient(s) affect drug permeation and overall absorption rate. This is especially relevant because of the renewed interest in permeation enhancers (PE), also called absorption-modifying excipients (AME), for enabling oral administration of low-permeation compounds, for example, peptides [6,7]. Some advocates of this formulation approach propose the colon as a potential target for PEs, because the colon has a longer residence time, its mucosa may be more easily affected, and it does not have the higher peptidase activity of the upper GI tract [8,9].However, few comparisons of the small and large intestine in rat have been made on the direct permeability effects of PEs in the same laboratory.…”
mentioning
confidence: 99%
“…In September 2019, oral semaglutide became the first orally administered GLP-1 receptor agonist to be approved by the FDA 2 . Oral semaglutide uses an absorption enhancer, sodium N-(8- [2-hydroxybenzoyl] amino) caprylate, to facilitate absorption across the gastric mucosa, and aims to provide the benefits of existing GLP-1 receptor agonists without the requirement for daily or weekly injection 3 . Patients are required to take oral semaglutide at least 30 min before the first food, beverage, or other oral medications of the day with no more than 4 ounces of water only.…”
Section: Introductionmentioning
confidence: 99%