Evidence map›Paper›PMID 22638872›Full record

ArticlePharmaceutical research2012

Physiologically based modeling of pravastatin transporter-mediated hepatobiliary disposition and drug-drug interactions.

Manthena V S Varma, Yurong Lai, Bo Feng, John Litchfield, Theunis C Goosen, Arthur Bergman

Abstract read
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In one paragraph

Article in Pharmaceutical research, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
44citing papers in PubMed, 2 pooled it
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

44 citing papers in PubMed, 2 syntheses or guidelines pooled it, 129 citations in OpenAlex.

  1. Abundance of Hepatic Transporters in Caucasians: A Meta-Analysis.Drug metabolism and disposition: the biological fate of chemicals · 2016
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  16. Examination of Physiologically-Based Pharmacokinetic Models of Rosuvastatin.CPT: pharmacometrics & systems pharmacology · 2021
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4 · The record

Corrections and comments

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
Bo Feng
John Litchfield
Theunis C Goosen
Arthur Bergman
Pfizer (United States) · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo develop physiologically based pharmacokinetic (PBPK) model to predict the pharmacokinetics and drug-drug interactions (DDI) of pravastatin, using the in vitro transport parameters.

methodsIn vitro hepatic sinusoidal active uptake, passive diffusion and canalicular efflux intrinsic clearance values were determined using sandwich-culture human hepatocytes (SCHH) model. PBPK modeling and simulations were implemented in Simcyp (Sheffield, UK). DDI with OATP1B1 inhibitors, cyclosporine, gemfibrozil and rifampin, was also simulated using inhibition constant (Ki) values.

resultsSCHH studies suggested active uptake, passive diffusion and efflux intrinsic clearance values of 1.9, 0.5 and 1.2 μL/min/10(6)cells, respectively, for pravastatin. PBPK model developed, using transport kinetics and scaling factors, adequately described pravastatin oral plasma concentration-time profiles at different doses (within 20% error). Model based prediction of DDIs with gemfibrozil and rifampin was similar to that observed. However, pravastatin-cyclosporine DDI was underpredicted (AUC ratio 4.4 Vs ~10). Static (R-value) model predicted higher magnitude of DDI compared to the AUC ratio predicted by the PBPK modeling.

conclusionsPBPK model of pravastatin, based on in vitro transport parameters and scaling factors, was developed. The approach described can be used to predict the pharmacokinetics and DDIs associated with hepatic uptake transporters.

Indexed as

AdolescentAdultAgedArea Under CurveBiological TransportCells, CulturedComputer SimulationCyclosporineDrug InteractionsEnzyme InhibitorsFemaleGemfibrozilHepatocytesHumansLiverLiver-Specific Organic Anion Transporter 1CyclosporineEnzyme InhibitorsGemfibrozilLiver-Specific Organic Anion Transporter 1Organic Anion TransportersPravastatinRifampinSLCO1B1 protein, human

Identifiers

PMID22638872
OpenAlexW2030871745

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.