Evidence map›Paper›PMID 17876342›Full record

Trial reportThe pharmacogenomics journal2008

PXR, CAR and HNF4alpha genotypes and their association with pharmacokinetics and pharmacodynamics of docetaxel and doxorubicin in Asian patients.

S Y Hor, S C Lee, C I Wong, Y W Lim, R C Lim, L Z Wang, L Fan, J Y Guo, H S Lee, B C Goh and 1 more

Abstract readComparative StudyRandomized Controlled Trial
PubMed Publisher
In one paragraph

Trial report in The pharmacogenomics journal, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 1 pooled it
6.4field-weighted citation impact, top 4% 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

22 citing papers in PubMed, 1 synthesis or guideline pooled it, 56 citations in OpenAlex.

  1. Pooled it
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  14. Review
  15. Genetic variation: effect on prostate cancer.Biochimica et biophysica acta · 2014
    Review
  16. Clinical efficacy of adjunctive G-CSF on solid tumor and lymphoma patients with established febrile neutropenia.Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer · 2014
    Observational
  17. Article
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  20. Impact of colony-stimulating factors to reduce febrile neutropenic events in breast cancer patients receiving docetaxel plus cyclophosphamide chemotherapy.Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer · 2011
    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

11 authors at 2 institutions in 1 country.

S Y HorDepartment of Biochemistry, National University of Singapore, Singapore.
S C Lee
C I Wong
Y W Lim
R C Lim
L Z Wang
L Fan
J Y Guo
H S Lee
B C Goh
T Tan
National University Hospital · SGNational University of Singapore · SG

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Previously studied candidate genes have failed to account for inter-individual variability of docetaxel and doxorubicin disposition and effects. We genotyped the transcriptional regulators of CYP3A and ABCB1 in 101 breast cancer patients from 3 Asian ethnic groups, that is, Chinese, Malays and Indians, in correlation with the pharmacokinetics and pharmacodynamics of docetaxel and doxorubicin. While there was no ethnic difference in docetaxel and doxorubicin pharmacokinetics, ethnic difference in docetaxel- (ANOVA, P=0.001) and doxorubicin-induced (ANOVA, P=0.003) leukocyte suppression was observed, with Chinese and Indians experiencing greater degree of docetaxel-induced myelosuppression than Malays (Bonferroni, P=0.002, P=0.042), and Chinese experiencing greater degree of doxorubicin-induced myelosuppression than Malays and Indians (post hoc Bonferroni, P=0.024 and 0.025). Genotyping revealed both PXR and CAR to be well conserved; only a PXR 5'-untranslated region polymorphism (-24381A>C) and a silent CAR variant (Pro180Pro) were found at allele frequencies of 26 and 53%, respectively. Two non-synonymous variants were identified in HNF4alpha (Met49Val and Thr130Ile) at allele frequencies of 55 and 1%, respectively, with the Met49Val variant associated with slower neutrophil recovery in docetaxel-treated patients (ANOVA, P=0.046). Interactions were observed between HNF4alpha Met49Val and CAR Pro180Pro, with patients who were wild type for both variants experiencing least docetaxel-induced neutropenia (ANOVA, P=0.030). No other significant genotypic associations with pharmacokinetics or pharmacodynamics of either drug were found. The PXR-24381A>C variants were significantly more common in Indians compared to Chinese or Malays (32/18/21%, P=0.035) Inter-individual and inter-ethnic variations of docetaxel and doxorubicin pharmacokinetics or pharmacodynamics exist, but genotypic variability of the transcriptional regulators PAR, CAR and HNF4alpha cannot account for this variability.

Indexed as

5' Untranslated RegionsAdultAgedAntibiotics, AntineoplasticAntineoplastic Agents, PhytogenicAntineoplastic Combined Chemotherapy ProtocolsAsian PeopleBlood PlateletsBreast NeoplasmsChinaConstitutive Androstane ReceptorCytochrome P-450 CYP3ACytochrome P-450 Enzyme SystemDocetaxelDoxorubicinExons5' Untranslated RegionsAntibiotics, AntineoplasticAntineoplastic Agents, PhytogenicConstitutive Androstane ReceptorCYP3A5 protein, humanCytochrome P-450 CYP3ACytochrome P-450 Enzyme SystemDocetaxelDoxorubicinHepatocyte Nuclear Factor 4HNF4A protein, humanPregnane X ReceptorReceptors, Cytoplasmic and NuclearReceptors, SteroidTaxoidsTranscription Factors

Identifiers

PMID17876342
OpenAlexW2077658228

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.