Evidence map›Paper›PMID 23887590›Full record

ArticleCPT: pharmacometrics & systems pharmacology2013

Effect of Ritonavir on (99m)Technetium-Mebrofenin Disposition in Humans: A Semi-PBPK Modeling and In Vitro Approach to Predict Transporter-Mediated DDIs.

N D Pfeifer, S L Goss, B Swift, G Ghibellini, M Ivanovic, W D Heizer, L M Gangarosa, K L R Brouwer

Registry-linked trialOpen access · goldAbstract read
In one paragraph

Article in CPT: pharmacometrics & systems pharmacology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02235233 (Clinical Study to Investigate the Effect of NASH), which is not on this map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
2.2field-weighted citation impact, top 12% 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.

NCT02235233 phase1completednot on this mapstarted 2015, after this paper: background citation

Clinical Study to Investigate the Effect of NASH (Non-alcoholic Steatohepatitis) on the Disposition of 99mTechnetium(Tc)-Mebrofenin in Healthy Subjects Compared to Patients With NASH.

TypeinterventionalSponsorUniversity of North Carolina, Chapel HillRan2015 to 2016Enrolled21ConditionsNon-alcoholic SteatohepatitisArmsTechnetium Tc 99M Mebrofenin
3 · Its place in the literature

Who cites it

24 citing papers in PubMed, 44 citations in OpenAlex.

  1. Positron Emission Tomography Imaging of [Clinical pharmacology and therapeutics · 2019
    Trial
  2. Article
  3. Review
  4. Article
  5. Article
  6. Review
  7. The current status and future prospects for molecular imaging-guided precision surgery.Cancer imaging : the official publication of the International Cancer Imaging Society · 2022
    Review
  8. Pharmacokinetic Imaging UsingPharmaceuticals (Basel, Switzerland) · 2022
    Article
  9. Review
  10. Article
  11. Article
  12. Use of imaging to assess the activity of hepatic transporters.Expert opinion on drug metabolism & toxicology · 2020
    Review
  13. Evaluation of Drug Biliary Excretion Using Sandwich-Cultured Human Hepatocytes.European journal of drug metabolism and pharmacokinetics · 2019
    Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Review
  20. Article
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

8 authors at 1 institution in 1 country.

N D PfeiferUniversity of North Carolina at Chapel Hill, Division of Pharmacotherapy and Experimental Therapeutics, UNC Eshelman School of Pharmacy, Chapel Hill, North Carolina, USA.
S L Goss
B Swift
G Ghibellini
M Ivanovic
W D Heizer
L M Gangarosa
K L R Brouwer
University of North Carolina at Chapel Hill · US

Funding

Virology, Immunology, and Microbiology CoreP30AI050410 · NIAID · UNIV OF NORTH CAROLINA CHAPEL HILL · PI DAVID M. MARGOLIS · 2001 to 2026
$76.9M
UNC CLINICAL AND TRANSLATIONAL SCIENCE AWARD: BPCAUL1RR025747 · NCRR · UNIV OF NORTH CAROLINA CHAPEL HILL · PI RUNGE, MARSCHALL S. · 2008 to 2011
$44.6M
Zonisamide in Patients with Neuropathic Pain Associated with Diabetic NeuropathyM01RR000046 · NCRR · UNIV OF NORTH CAROLINA CHAPEL HILL · PI JOY, MELANIE S · 1985 to 2008
$38.5M
UNC Clinical and Translational Science AwardUL1TR000083 · NCATS · UNIV OF NORTH CAROLINA CHAPEL HILL · PI RUNGE, MARSCHALL S. · 2012 to 2013
$11.6M
ALTERED HEPATIC DISPOSITION OF ANIONIC DRUGS-MECHANISMSR01GM041935 · NIGMS · UNIV OF NORTH CAROLINA CHAPEL HILL · PI BROUWER, KIM L.R. · 1997 to 2016
$6.5M
NCATS NIH HHS UL1 TR000083NCRR NIH HHS M01 RR000046NCRR NIH HHS UL1 RR025747NIAID NIH HHS P30 AI050410NIGMS NIH HHS R01 GM041935
6 · The paper itself

Abstract

A semiphysiologically based pharmacokinetic (semi-PBPK) model was developed to describe a unique blood, liver, and bile clinical data set for the hepatobiliary imaging agent (99m)Technetium-mebrofenin ((99m)Tc-mebrofenin), and to simulate sites/mechanisms of a (99m)Tc-mebrofenin-ritonavir drug-drug interaction (DDI). The transport inhibitor ritonavir (multiple-dose: 2 × 300 mg) significantly increased systemic (99m)Tc-mebrofenin exposure as compared with control (4,464 ± 1,861 vs. 1,970 ± 311 nCi min/ml; mean ± SD), without affecting overall hepatic exposure or biliary recovery. A novel extrahepatic distribution compartment was required to characterize (99m)Tc-mebrofenin disposition. Ritonavir inhibited (99m)Tc-mebrofenin accumulation in human sandwich-cultured hepatocytes (SCH) (half maximal inhibitory concentration (IC50) = 3.46 ± 1.53 µmol/l). Despite ritonavir accumulation in hepatocytes, intracellular binding was extensive (97. 6%), which limited interactions with multidrug resistance protein 2 (MRP2)-mediated biliary excretion. These in vitro data supported conclusions from modeling/simulation that ritonavir inhibited (99m)Tc-mebrofenin hepatic uptake, but not biliary excretion, at clinically relevant concentrations. This integrated approach, utilizing modeling, clinical, and in vitro data, emphasizes the importance of hepatic and extrahepatic distribution, assessment of inhibitory potential in relevant in vitro systems, and intracellular unbound concentrations to assess transporter-mediated hepatic DDIs.CPT: Pharmacometrics & Systems Pharmacology (2013) 2, e20; doi:10.1038/psp.2012.21; advance online publication 2 January 2013.

Identifiers

PMID23887590
PMCPMC3600725
OpenAlexW2150286866

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Registered trials

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.