Evidence map›Paper›PMID 34267337›Full record

GuidelineEuropean journal of human genetics : EJHG2022

Dutch Pharmacogenetics Working Group (DPWG) guideline for the gene-drug interaction between CYP2D6 and opioids (codeine, tramadol and oxycodone).

Maja Matic, Marga Nijenhuis, Bianca Soree, Nienke J de Boer-Veger, Anne-Marie Buunk, Elisa J F Houwink, Hans Mulder, Gerard A P J M Rongen, Jan van der Weide, Bob Wilffert and 4 more

Erratum issuedOpen access · bronzeAbstract readPractice Guideline
In one paragraph

Guideline in European journal of human genetics : EJHG, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 36 papers, 7 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed, 7 pooled it
7.3field-weighted citation impact, top 2% 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

36 citing papers in PubMed, 7 syntheses or guidelines pooled it, 51 citations in OpenAlex.

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  11. Unlocking Performance: Pharmacogenomic Insights for Athletes.Sports medicine international open · 2026
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

14 authors at 8 institutions in 1 country.

Maja MaticDepartment of Clinical Chemistry, Erasmus University Medical Center, Rotterdam, The Netherlands.
Marga NijenhuisRoyal Dutch Pharmacists Association (KNMP), The Hague, The Netherlands. M.Nijenhuis@knmp.nl.ORCID 0000-0001-7476-6867
Bianca SoreeRoyal Dutch Pharmacists Association (KNMP), The Hague, The Netherlands.
Nienke J de Boer-VegerPharmacy Boterdiep, Groningen, The Netherlands.
Anne-Marie BuunkPharmacy De Katwijkse Apotheek, Katwijk, The Netherlands.
Elisa J F HouwinkDepartment of Public Health and Primary Care (PHEG), Leiden University Medical Centre, Leiden, The Netherlands.
Hans MulderDepartment of Clinical Pharmacy, Wilhelmina Hospital, Assen, The Netherlands.
Gerard A P J M RongenDepartment of Internal Medicine, Radboud University Medical Center, Nijmegen, The Netherlands.
Jan van der WeideDepartment of Clinical Chemistry, St. Jansdal Hospital, Harderwijk, The Netherlands.
Bob WilffertDepartment of Clinical Pharmacy & Pharmacology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands.
Jesse J SwenDepartment of Clinical Pharmacy & Toxicology, Leiden University Medical Center, Leiden, The Netherlands.
Henk-Jan GuchelaarDepartment of Clinical Pharmacy & Toxicology, Leiden University Medical Center, Leiden, The Netherlands.
Vera H M DeneerDepartment of Clinical Pharmacy, University Medical Center Utrecht, Utrecht, The Netherlands.
Ron H N van SchaikDepartment of Clinical Chemistry, Erasmus University Medical Center, Rotterdam, The Netherlands.
Erasmus MC · NLLeiden University Medical Center · NLRoyal Dutch Pharmacists Association · NLLeiden University · NLRadboud University Nijmegen · NLRijnstate Hospital · NLUniversity Medical Center Groningen · NLUniversity Medical Center Utrecht · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The current Dutch Pharmacogenetics Working Group (DPWG) guideline, describes the gene-drug interaction between CYP2D6 and the opioids codeine, tramadol and oxycodone. CYP2D6 genotype is translated into normal metaboliser (NM), intermediate metaboliser (IM), poor metaboliser (PM) or ultra-rapid metaboliser (UM). Codeine is contraindicated in UM adults if doses >20 mg every 6 h (q6h), in children ≥12 years if doses >10 mg q6h, or with additional risk factors. In PMs, an alternative analgesic should be given which is not or to a lesser extent metabolised by CYP2D6 (not tramadol). In IMs with insufficient analgesia, a higher dose or alternative analgesic should be given. For tramadol, the recommendations for IMs and PMs are the same as the recommendation for codeine and IMs. UMs should receive an alternative drug not or to a lesser extent metabolised by CYP2D6 or the dose should be decreased to 40% of the commonly prescribed dose. Due to the absence of effect on clinical outcomes of oxycodone in PMs, IMs and UMs no action is required. DPWG classifies CYP2D6 genotyping for codeine "beneficial" and recommends testing prior to, or shortly after initiation of treatment in case of higher doses or additional risk factors. CYP2D6 genotyping is classified as "potentially beneficial" for tramadol and can be considered on an individual patient basis.

Indexed as

Cytochrome P-450 CYP2D6TramadolAdultAnalgesics, OpioidChildCodeineCytochrome P450 Family 2Drug InteractionsHumansOxycodonePharmacogeneticsAnalgesics, OpioidCodeineCYP2D6 protein, humanCytochrome P-450 CYP2D6Cytochrome P450 Family 2OxycodoneTramadol

Identifiers

PMID34267337
PMCPMC9553935
OpenAlexW3182490938

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.