Evidence map›Paper›PMID 30367352›Full record

ArticleClinical pharmacokinetics2019

Impact of CYP3A4*22 on Pazopanib Pharmacokinetics in Cancer Patients.

Sander Bins, Alwin D R Huitema, Pim Laven, Samira El Bouazzaoui, Huixin Yu, Nielka van Erp, Carla van Herpen, Paul Hamberg, Hans Gelderblom, Neeltje Steeghs and 4 more

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

Article in Clinical pharmacokinetics, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 1 pooled it
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

16 citing papers in PubMed, 1 synthesis or guideline pooled it, 28 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Review
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  15. Review
  16. Interindividual Variation in CYP3A Activity Influences Lapatinib Bioactivation.Drug metabolism and disposition: the biological fate of chemicals · 2019
    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

14 authors at 7 institutions in 1 country.

Sander BinsDepartment of Medical Oncology, Erasmus MC Cancer Institute, Josephine Nefkens Building, Room Be-424, PO Box 5201, 3008 AE, Rotterdam, The Netherlands.ORCID 0000-0002-8280-9836
Alwin D R HuitemaDepartment of Pharmacy and Pharmacology, Netherlands Cancer Institute, Antoni van Leeuwenhoek, Amsterdam, The Netherlands.
Pim LavenDepartment of Medical Oncology, Erasmus MC Cancer Institute, Josephine Nefkens Building, Room Be-424, PO Box 5201, 3008 AE, Rotterdam, The Netherlands.
Samira El BouazzaouiDepartment of Clinical Chemistry, Erasmus University Medical Center, Rotterdam, The Netherlands.
Huixin YuDepartment of Pharmacy and Pharmacology, Netherlands Cancer Institute, Antoni van Leeuwenhoek, Amsterdam, The Netherlands.
Nielka van ErpDepartment of Clinical Pharmacy, Radboud University Medical Center, Nijmegen, The Netherlands.
Carla van HerpenDepartment of Medical Oncology, Radboud University Medical Center, Nijmegen, The Netherlands.
Paul HambergDepartment of Internal Medicine, Franciscus Gasthuis & Vlietland, Rotterdam, The Netherlands.
Hans GelderblomDepartment of Medical Oncology, Leiden University Medical Center, Leiden, The Netherlands.
Neeltje SteeghsDepartment of Medical Oncology and Clinical Pharmacology, Netherlands Cancer Institute, Antoni van Leeuwenhoek, Amsterdam, The Netherlands.
Stefan SleijferDepartment of Medical Oncology, Erasmus MC Cancer Institute, Josephine Nefkens Building, Room Be-424, PO Box 5201, 3008 AE, Rotterdam, The Netherlands.
Ron H N van SchaikDepartment of Clinical Chemistry, Erasmus University Medical Center, Rotterdam, The Netherlands.
Ron H J MathijssenDepartment of Medical Oncology, Erasmus MC Cancer Institute, Josephine Nefkens Building, Room Be-424, PO Box 5201, 3008 AE, Rotterdam, The Netherlands.
Stijn L W KoolenDepartment of Medical Oncology, Erasmus MC Cancer Institute, Josephine Nefkens Building, Room Be-424, PO Box 5201, 3008 AE, Rotterdam, The Netherlands. s.koolen@erasmusmc.nl.
Erasmus MC Cancer Institute · NLErasmus MC · NLRadboud University Nijmegen · NLThe Netherlands Cancer Institute · NLLeiden University Medical Center · NLSint Franciscus Gasthuis · NLUtrecht University · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND AND

objectiveAs pazopanib plasma trough concentrations are correlated with treatment outcome, we explored whether single nucleotide polymorphisms in the elimination pathway of pazopanib affect systemic pazopanib concentrations.

methodsThe decreased function alleles CYP3A4 15389 C > T (*22), ABCB1 3435 C >T, ABCG2 421 C >A, and ABCG2 34G >A were analyzed within a recently developed population-pharmacokinetic model.

resultsIncorporation of CYP3A4*22 in the model resulted in a 35% lower clearance for variant carriers (0.18 vs. 0.27 L/h; difference in objective function value: - 9.7; p < 0.005). Simulated median trough concentrations of cancer patients with CYP3A4*22 with 600 mg once daily or 800 mg once daily were 31 and 35 mg/L, respectively. The simulated trough concentrations for the population excluding the CYP3A4*22 carriers after 600 mg once daily or 800 mg once daily were 18 and 20 mg/L, respectively.

conclusionThis analysis shows that CYP3A4*22 heterozygotes have a substantial lower pazopanib clearance and that dose adjustments based on CYP3A4*22 status could be considered.

Indexed as

Models, BiologicalAngiogenesis InhibitorsCytochrome P-450 CYP3AFemaleHeterozygoteHumansIndazolesMaleMiddle AgedNeoplasmsPolymorphism, Single NucleotidePyrimidinesSulfonamidesAngiogenesis InhibitorsCYP3A4 protein, humanCytochrome P-450 CYP3AIndazolespazopanibPyrimidinesSulfonamides

Identifiers

PMID30367352
PMCPMC6451710
OpenAlexW2898124620

What OpenQuestion holds

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LicenceCC BY-NC
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Registered trials

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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.