Evidence map›Paper›PMID 36111505›Full record

ArticleClinical pharmacology and therapeutics2023

Characterization of CYP2D6 Pharmacogenetic Variation in Sub-Saharan African Populations.

David Twesigomwe, Britt I Drögemöller, Galen E B Wright, Clement Adebamowo, Godfred Agongo, Palwendé R Boua, Mogomotsi Matshaba, Maria Paximadis, Michèle Ramsay, Gustave Simo and 4 more

Open access · hybridAbstract read
In one paragraph

Article in Clinical pharmacology and therapeutics, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed, 2 pooled it
7.2field-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

26 citing papers in PubMed, 2 syntheses or guidelines pooled it, 40 citations in OpenAlex.

  1. Pooled it
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  15. Analysis ofIranian journal of medical sciences · 2025
    Article
  16. Genome-wide association testing beyond SNPs.Nature reviews. Genetics · 2025
    Review
  17. Article
  18. StarTRAC-Frontiers in pharmacology · 2025
    Article
  19. Article
  20. 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 9 institutions in 9 countries.

David TwesigomweSydney Brenner Institute for Molecular Bioscience, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa.ORCID 0000-0002-5421-5512
Britt I DrögemöllerDepartment of Biochemistry and Medical Genetics, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada.ORCID 0000-0002-3348-5855
Galen E B WrightNeuroscience Research Program, Kleysen Institute for Advanced Medicine, Winnipeg Health Sciences Centre and Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada.ORCID 0000-0003-2415-7339
Clement AdebamowoInstitute for Human Virology, Abuja, Nigeria.
Godfred AgongoNavrongo Health Research Centre, Ghana Health Service, Navrongo, Ghana.
Palwendé R BouaSydney Brenner Institute for Molecular Bioscience, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa.ORCID 0000-0001-8325-2665
Mogomotsi MatshabaBotswana-Baylor Children's Clinical Centre of Excellence, Gaborone, Botswana.
Maria PaximadisCentre for HIV and STIs, National Institute for Communicable Diseases, National Health Laboratory Services and Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa.
Michèle RamsaySydney Brenner Institute for Molecular Bioscience, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa.ORCID 0000-0002-4156-4801
Gustave SimoMolecular Parasitology and Entomology Unit, Department of Biochemistry, Faculty of Science, University of Dschang, Dschang, Cameroon.ORCID 0000-0002-0449-818X
Martin C SimuunzaDepartment of Disease Control, School of Veterinary Medicine, University of Zambia, Lusaka, Zambia.
Caroline T TiemessenCentre for HIV and STIs, National Institute for Communicable Diseases, National Health Laboratory Services and Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa.ORCID 0000-0002-0991-1690
Zané LombardDivision of Human Genetics, National Health Laboratory Service, and School of Pathology, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa.ORCID 0000-0002-7997-2616
Scott HazelhurstSydney Brenner Institute for Molecular Bioscience, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa.ORCID 0000-0002-0581-149X
National Health Laboratory Service · ZAUniversity of the Witwatersrand · ZABaylor College of Medicine · USHealth Sciences Centre · CANavrongo Health Research Centre · GHUniversité de Dschang · CMUniversity of Manitoba · CAUniversity of Maryland, Baltimore · USUniversity of Zambia · ZM

Funding

The Human Genome Sequencing CenterU54HG003273 · NHGRI · BAYLOR COLLEGE OF MEDICINE · PI GIBBS, RICHARD A · 2004 to 2015
$341.3M
New York Center for Collaborative Research In Common Disease Genomics: Genome Aggregation and Joint Variant Calling for CCDG Freeze2UM1HG008901 · NHGRI · NEW YORK GENOME CENTER · PI MANIATIS, THOMAS P, WIGLER, MICHAEL H · 2016 to 2020
$56.6M
Shared Core: Biobanking, Bioinformatics and Data ManagementU54HG006938 · NHGRI · WITS HEALTH CONSORTIUM (PTY), LTD · PI RAMSAY, MICHELE MICHELE · 2012 to 2022
$12.2M
Phenotyping and BioarchivingU54AI110398 · NIAID · BOTSWANA BAYLOR CHILD/CLINCAL CTR/EXCELL · PI MATSHABA, MOGOMOTSI SANDY · 2014 to 2021
$8.9M
African Collaborative Center for Microbiome and Genomics Research (ACCME)U54HG006947 · NHGRI · INSTITUTE OF HUMAN VIROLOGY · PI ADEBAMOWO, CLEMENT ADEBAYO · 2013 to 2018
$5.7M
NHGRI NIH HHS U54 HG003273NHGRI NIH HHS U54 HG006938NHGRI NIH HHS U54 HG006947NHGRI NIH HHS UM1 HG008901NIAID NIH HHS U54 AI110398Wellcome TrustWellcome Trust 099310/Z/12/Z
6 · The paper itself

Abstract

Cytochrome P450 2D6 (CYP2D6) is a key enzyme in drug response owing to its involvement in the metabolism of ~ 25% of clinically prescribed medications. The encoding CYP2D6 gene is highly polymorphic, and many pharmacogenetics studies have been performed worldwide to investigate the distribution of CYP2D6 star alleles (haplotypes); however, African populations have been relatively understudied to date. In this study, the distributions of CYP2D6 star alleles and predicted drug metabolizer phenotypes-derived from activity scores-were examined across multiple sub-Saharan African populations based on bioinformatics analysis of 961 high-depth whole genome sequences. This was followed by characterization of novel star alleles and suballeles in a subset of the participants via targeted high-fidelity Single-Molecule Real-Time resequencing (Pacific Biosciences). This study revealed varying frequencies of known CYP2D6 alleles and predicted phenotypes across different African ethnolinguistic groups. Twenty-seven novel CYP2D6 star alleles were predicted computationally and two of them were further validated. This study highlights the importance of studying variation in key pharmacogenes such as CYP2D6 in the African context to better understand population-specific allele frequencies. This will aid in the development of better genotyping panels and star allele detection approaches with a view toward supporting effective implementation of precision medicine strategies in Africa and across the African diaspora.

Indexed as

Cytochrome P-450 CYP2D6PharmacogeneticsAfrica South of the SaharaAllelesGene FrequencyGenotypeHaplotypesHumansPhenotypeCytochrome P-450 CYP2D6

Identifiers

PMID36111505
PMCPMC9957841
OpenAlexW4296028961

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.