Evidence map›Paper›PMID 25752914›Full record

ArticleBritish journal of clinical pharmacology2015

Impact of CYP2C19 polymorphism on the pharmacokinetics of nelfinavir in patients with pancreatic cancer.

Krishna Kattel, Ruby Evande, Chalet Tan, Goutam Mondal, Jean L Grem, Ram I Mahato

Open access · bronzeAbstract readClinical Trial, Phase I
In one paragraph

Article in British journal of clinical pharmacology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
0.9field-weighted citation impact, top 25% 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

13 citing papers in PubMed, 22 citations in OpenAlex.

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  11. Phase I trial of concurrent stereotactic body radiotherapy and nelfinavir for locally advanced borderline or unresectable pancreatic adenocarcinoma.Radiotherapy and oncology : journal of the European Society for Therapeutic Radiology and Oncology · 2019
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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 2 institutions in 1 country.

Krishna KattelDepartment of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, NE 68198, USA.
Ruby EvandeDepartment of Medicine, University of Nebraska Medical Center, Omaha, NE 68198, USA.
Chalet TanDepartment of Pharmaceutical Sciences, Mercer University, Atlanta, GA 30341, USA.
Goutam MondalDepartment of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, NE 68198, USA.
Jean L GremDepartment of Medicine, University of Nebraska Medical Center, Omaha, NE 68198, USA.
Ram I MahatoDepartment of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, NE 68198, USA.
University of Nebraska Medical Center · USMercer University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimThis study evaluated the influence of CYP2C19 polymorphisms on the pharmacokinetics of nelfinavir and its metabolite M8 in patients with pancreatic cancer.

methodsNelfinavir was administered orally to patients for over 10 days. The plasma concentrations of nelfinavir and M8 were measured by HPLC. The genotypes of CYP2C19*1, CYP2C19*2 and CYP2C19*3 were determined by the polymerase chain reaction-restriction fragment length polymorphism method.

resultsPharmacokinetic profiles of nelfinavir and M8 were characterized by wide interindividual variability. The mean Cmax of nelfinavir in CYP2C19*1/*1 patients was 3.89 ± 0.40 (n = 3) and 5.12 ± 0.41 (n = 30) µg ml(-1) , while that of CYP2C19*1/*2 patients was 3.60 (n = 1) and 6.14 ± 0.31 (n = 5) µg ml(-1) at the doses of 625 and 1250 mg nelfinavir twice daily, respectively. For the M8 metabolite, the mean Cmax of CYP2C19*1/*1 patients was 1.06 ± 0.06 (n = 3) and 1.58 ± 0.27 (n = 30) µg ml(-1) , while those of CYP2C19*1/*2 patients were 1.01 (n = 1) and 1.23 ± 0.15 (n = 5) µg ml(-1) at the doses of 625 and 1250 mg nelfinavir twice daily, respectively. The area under the plasma concentration-time curve (AUC(0,12 h)) values of nelfinavir for CYP2C19*1/*1 patients were 28.90 ± 1.27 and 38.90 ± 4.99 µg ml(-1) ·h and for CYP2C19*1/*2 patients, AUC(0,12 h) was 28.20 (n = 1) and 40.22 ± 3.17 (n = 5) µg ml(-1) ·h at the doses of 625 and 1250 mg nelfinavir twice daily, respectively. The Cmax of nelfinavir was significantly higher (P <0.05) in CYP2C19*1/*2 patients but there was no statistical difference in AUC(0,12 h).

conclusionCYP2C19*1/*2 genotype modestly affected the pharmacokinetic profiles of nelfinavir and M8 in patients with locally advanced pancreatic cancer.

Indexed as

Polymorphism, Restriction Fragment LengthAdultAgedAntineoplastic AgentsArea Under CurveCytochrome P-450 CYP2C19Dose-Response Relationship, DrugFemaleHumansMaleMiddle AgedNelfinavirPancreatic NeoplasmsAntineoplastic AgentsCYP2C19 protein, humanCytochrome P-450 CYP2C19NelfinavirCYP2C19genotypemetabolitenelfinavirpharmacokinetics

Identifiers

PMID25752914
PMCPMC4541974
OpenAlexW1901692589

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.