Evidence map›Paper›PMID 27168101›Full record

ArticleThe pharmacogenomics journal2017

Genetic risk factors for clozapine-induced neutropenia and agranulocytosis in a Dutch psychiatric population.

K van der Weide, H Loovers, K Pondman, J Bogers, T van der Straaten, E Langemeijer, D Cohen, J Commandeur, J van der Weide

Open access · bronzeAbstract read
PubMed Publisher
In one paragraph

Article in The pharmacogenomics journal, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
3.6field-weighted citation impact, top 7% 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

15 citing papers in PubMed, 1 synthesis or guideline pooled it, 33 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Review
  4. Reduction in Absolute Neutrophil Counts in Patient on Clozapine Infected with COVID-19.International journal of environmental research and public health · 2021
    Review
  5. Article
  6. Article
  7. Review
  8. Review
  9. PharmGKB summary: clozapine pathway, pharmacokinetics.Pharmacogenetics and genomics · 2018
    Article
  10. Article
  11. Article
  12. Review
  13. Article
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  15. 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

9 authors at 6 institutions in 1 country.

K van der WeideDepartment of Clinical Chemistry, St Jansdal Hospital, Harderwijk, The Netherlands.
H LooversDepartment of Clinical Chemistry, St Jansdal Hospital, Harderwijk, The Netherlands.
K PondmanDepartment of Clinical Chemistry, St Jansdal Hospital, Harderwijk, The Netherlands.
J BogersMental Health Services Rivierduinen, Oegstgeest, The Netherlands.
T van der StraatenDepartment of Clinical Pharmacy and Toxicology, Leiden University Medical Center, Leiden, The Netherlands.
E LangemeijerDivision of Medicinal Chemistry, Leiden/Amsterdam Center for Drug Research, Leiden University, Leiden, The Netherlands.
D CohenMental Health Services North-Holland North, Heerhugowaard, The Netherlands.
J CommandeurAIMMS-Division of Molecular Toxicology, Department of Chemistry and Pharmaceutical Sciences, VU Amsterdam, Amsterdam, The Netherlands.
J van der WeideDepartment of Clinical Chemistry, St Jansdal Hospital, Harderwijk, The Netherlands.
GGz centraal · NLRijnstate Hospital · NLCentre for Human Drug Research · NLGGZ Rivierduinen · NLLeiden University Medical Center · NLVrije Universiteit Amsterdam · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Prescription of clozapine is complicated by the occurrence of clozapine-induced reduction of neutrophils. The aim of this study was to identify genetic risk factors in a population of 310 Dutch patients treated with clozapine, including 38 patients developing neutropenia and 31 patients developing agranulocytosis. NQO2 1541AA (NRH quinone oxidoreductase 2; protects cells against oxidative metabolites) was present at a higher frequency in agranulocytosis patients compared with control (23% versus 7%, P=0.03), as was ABCB1 (ABC-transporter-B1; drug efflux transporter) 3435TT (32% versus 20%, P=0.05). In patients developing neutropenia, ABCB1 3435TT and homozygosity for GSTT1

Indexed as

Pharmacogenomic VariantsAdultAgranulocytosisAntipsychotic AgentsATP Binding Cassette Transporter, Subfamily BCase-Control StudiesClozapineFemaleGenotypeHumansMaleMental DisordersMiddle AgedNetherlandsNeutropeniaQuinone ReductasesABCB1 protein, humanAntipsychotic AgentsATP Binding Cassette Transporter, Subfamily BClozapineNRH - quinone oxidoreductase2Quinone Reductases

Identifiers

PMID27168101
OpenAlexW2364113079

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.