Evidence map›Paper›PMID 23307347›Full record

ArticlePharmaceutical research2013

Mechanistic modeling to predict the transporter- and enzyme-mediated drug-drug interactions of repaglinide.

Manthena V S Varma, Yurong Lai, Emi Kimoto, Theunis C Goosen, Ayman F El-Kattan, Vikas Kumar

Abstract read
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In one paragraph

Article in Pharmaceutical research, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed
7.1field-weighted citation impact, top 2% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

35 citing papers in PubMed, 102 citations in OpenAlex.

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  9. Effects of mongolian medicineInternational journal of clinical and experimental pathology · 2020
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  10. An Informatics-based Approach to Identify Key Pharmacological Components in Drug-Drug Interactions.AMIA Joint Summits on Translational Science proceedings. AMIA Joint Summits on Translational Science · 2020
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 1 institution in 1 country.

Manthena V S VarmaPharmacokinetcis, Dynamics and Metabolism, Pfizer Inc., Groton, Connecticut, USA. manthena.v.varma@pfizer.com
Yurong Lai
Emi Kimoto
Theunis C Goosen
Ayman F El-Kattan
Vikas Kumar
Pfizer (United States) · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeQuantitative prediction of complex drug-drug interactions (DDIs) is challenging. Repaglinide is mainly metabolized by cytochrome-P-450 (CYP)2C8 and CYP3A4, and is also a substrate of organic anion transporting polypeptide (OATP)1B1. The purpose is to develop a physiologically based pharmacokinetic (PBPK) model to predict the pharmacokinetics and DDIs of repaglinide.

methodsIn vitro hepatic transport of repaglinide, gemfibrozil and gemfibrozil 1-O-β-glucuronide was characterized using sandwich-culture human hepatocytes. A PBPK model, implemented in Simcyp (Sheffield, UK), was developed utilizing in vitro transport and metabolic clearance data.

resultsIn vitro studies suggested significant active hepatic uptake of repaglinide. Mechanistic model adequately described repaglinide pharmacokinetics, and successfully predicted DDIs with several OATP1B1 and CYP3A4 inhibitors (<10% error). Furthermore, repaglinide-gemfibrozil interaction at therapeutic dose was closely predicted using in vitro fraction metabolism for CYP2C8 (0.71), when primarily considering reversible inhibition of OATP1B1 and mechanism-based inactivation of CYP2C8 by gemfibrozil and gemfibrozil 1-O-β-glucuronide.

conclusionsThis study demonstrated that hepatic uptake is rate-determining in the systemic clearance of repaglinide. The model quantitatively predicted several repaglinide DDIs, including the complex interactions with gemfibrozil. Both OATP1B1 and CYP2C8 inhibition contribute significantly to repaglinide-gemfibrozil interaction, and need to be considered for quantitative rationalization of DDIs with either drug.

Indexed as

Aryl Hydrocarbon HydroxylasesBiological Transport, ActiveCarbamatesCell LineCytochrome P-450 CYP2C8Drug InteractionsGemfibrozilHepatocytesHumansHypoglycemic AgentsHypolipidemic AgentsLiver-Specific Organic Anion Transporter 1Models, BiologicalOrganic Anion TransportersPiperidinesAryl Hydrocarbon HydroxylasesCarbamatesCYP2C8 protein, humanCytochrome P-450 CYP2C8GemfibrozilHypoglycemic AgentsHypolipidemic AgentsLiver-Specific Organic Anion Transporter 1Organic Anion TransportersPiperidinesrepaglinideSLCO1B1 protein, human

Identifiers

PMID23307347
OpenAlexW1991692137

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.