Evidence map›Paper›PMID 36806969›Full record

ReviewEuropean journal of clinical pharmacology2023

Prediction of CYP2D6 poor metabolizers by measurements of solanidine and metabolites-a study in 839 patients with known CYP2D6 genotype.

Birgit M Wollmann, Elisabet Størset, Marianne Kristiansen Kringen, Espen Molden, Robert L Smith

Open access · hybridFull text readReview
In one paragraph

Review in European journal of clinical pharmacology, 2023. 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
6.2field-weighted citation impact, top 3% 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, 25 citations in OpenAlex.

  1. Article
  2. Rudolf Buchheim Award 2026: solanidine as a dietary derived CYP2D6 biomarker.Naunyn-Schmiedeberg's archives of pharmacology · 2026
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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

5 authors at 3 institutions in 2 countries.

Birgit M WollmannCenter for Psychopharmacology, Diakonhjemmet Hospital, PO Box 23 Vinderen, 0319, Oslo, Norway. Birgitmalenetovik.wollmann@diakonsyk.no.ORCID http://orcid.org/0000-0001-7261-275X
Elisabet StørsetCenter for Psychopharmacology, Diakonhjemmet Hospital, PO Box 23 Vinderen, 0319, Oslo, Norway.ORCID http://orcid.org/0000-0002-2662-8504
Marianne Kristiansen KringenCenter for Psychopharmacology, Diakonhjemmet Hospital, PO Box 23 Vinderen, 0319, Oslo, Norway.ORCID http://orcid.org/0000-0002-4760-1693
Espen MoldenCenter for Psychopharmacology, Diakonhjemmet Hospital, PO Box 23 Vinderen, 0319, Oslo, Norway.ORCID http://orcid.org/0000-0001-6190-2751
Robert L SmithCenter for Psychopharmacology, Diakonhjemmet Hospital, PO Box 23 Vinderen, 0319, Oslo, Norway.ORCID http://orcid.org/0000-0001-6789-7076
Diakonhjemmet Hospital · NOUniversity of Oslo · NOOsloMet – Oslo Metropolitan University · NO

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposePoor metabolizers (PMs) of the highly polymorphic enzyme CYP2D6 are usually at high risk of adverse effects during standard recommended dosing of CYP2D6-metabolized drugs. We studied if the metabolism of solanidine, a dietary compound found in potatoes, could serve as a biomarker predicting the CYP2D6 PM phenotype for precision dosing.

methodsThe study included 839 CYP2D6-genotyped patients who were randomized by a 4:1 ratio into test or validation cohorts. Full-scan high-resolution mass spectrometry data files of previously analyzed serum samples were reprocessed for identification and quantification of solanidine and seven metabolites. Metabolite-to-solanidine ratios (MRs) of the various solanidine metabolites were calculated prior to performing receiver operator characteristic (ROC) and multiple linear regression analyses on the test cohort. The MR thresholds obtained from the ROC analyses were tested for the prediction of CYP2D6 PMs in the validation cohort.

resultsIn the test cohort, the M414-to-solanidine MR attained the highest sensitivity and specificity parameters from the ROC analyses (0.98 and 1.00) and highest explained variance from the linear models (R

conclusionThe M414-to-solanidine MR is an excellent predictor of the CYP2D6 PM phenotype. By measuring solanidine and metabolites using liquid chromatography-mass spectrometry in patient serum samples, CYP2D6 PMs can easily be identified, hence facilitating the implementation of precision dosing in clinical practice.

Indexed as

Cytochrome P-450 CYP2D6DiosgeninGenotypePhenotypeRandomized Controlled Trials as TopicCytochrome P-450 CYP2D6DiosgeninsolanidineBiomarkersCYPMetabolismPhenotypePrecision medicine

Identifiers

PMID36806969
PMCPMC10038974
OpenAlexW4321478305

What OpenQuestion holds

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LicenceCC BY
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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.