Evidence map›Paper›PMID 30091858›Full record

ArticleCPT: pharmacometrics & systems pharmacology2018

Semimechanistic Population Pharmacokinetic Model to Predict the Drug-Drug Interaction Between S-ketamine and Ticlopidine in Healthy Human Volunteers.

Muhammad W Ashraf, Marko A Peltoniemi, Klaus T Olkkola, Pertti J Neuvonen, Teijo I Saari

Open access · goldAbstract read
In one paragraph

Article in CPT: pharmacometrics & systems pharmacology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
2.2field-weighted citation impact, top 13% 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

10 citing papers in PubMed, 19 citations in OpenAlex.

  1. Trial
  2. Trial
  3. Trial
  4. Frontiers in pharmacology · 2024
    Article
  5. Frontiers in pain research (Lausanne, Switzerland) · 2022
    Article
  6. Esketamine: a glimmer of hope in treatment-resistant depression.European archives of psychiatry and clinical neuroscience · 2021
    Review
  7. Review
  8. Review
  9. Intranasal Esketamine (SpravatoP & T : a peer-reviewed journal for formulary management · 2019
    Article
  10. 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

5 authors at 3 institutions in 1 country.

Muhammad W AshrafDepartment of Anesthesiology and Intensive Care, University of Turku, Turku, Finland.
Marko A PeltoniemiDepartment of Anesthesiology and Intensive Care, University of Turku, Turku, Finland.
Klaus T OlkkolaDepartment of Anesthesiology, Intensive Care and Pain Medicine, University of Helsinki and Helsinki University Hospital, Helsinki, Finland.
Pertti J NeuvonenDepartment of Clinical Pharmacology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland.
Teijo I SaariDepartment of Anesthesiology and Intensive Care, University of Turku, Turku, Finland.
Turku University Hospital · FIUniversity of Helsinki · FIUniversity of Turku · FI

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Low-dose oral S-ketamine is increasingly used in chronic pain therapy, but extensive cytochrome P450 (CYP) mediated metabolism makes it prone to pharmacokinetic drug-drug interactions (DDIs). In our study, concentration-time data from five studies were used to develop a semimechanistic model that describes the ticlopidine-mediated inhibition of S-ketamine biotransformation. A mechanistic model was implemented to account for reversible and time-dependent hepatic CYP2B6 inactivation by ticlopidine, which causes elevated S-ketamine exposure in vivo. A pharmacokinetic model was developed with gut wall and hepatic clearances for S-ketamine, its primary metabolite norketamine, and ticlopidine. Nonlinear mixed effects modeling approach was used (NONMEM version 7.3.0), and the final model was evaluated with visual predictive checks and the sampling-importance-resampling procedure. Our final model produces biologically plausible output and demonstrates that ticlopidine is a strong inhibitor of CYP2B6 mediated S-ketamine metabolism. Simulations from our model may be used to evaluate chronic pain therapy with S-ketamine.

Indexed as

Models, BiologicalAnalgesicsCross-Over StudiesDrug InteractionsEnzyme InhibitorsHealthy VolunteersHumansKetaminePain ManagementPlacebosRandomized Controlled Trials as TopicTiclopidineAnalgesicsEnzyme InhibitorsKetaminePlacebosTiclopidine

Identifiers

PMID30091858
PMCPMC6202471
OpenAlexW2885634736

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.