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Pharmacogenomics
Week of 11 August 2026
10 articles
Geno'X Veille — genox-veille.fr
Key takeaways this week
- ►TPMT / NUDT15 — the CPIC curation panel designates decreased function alleles in both genes for the first time and reclassifies several previously uncertain-function alleles.
- ►Depression — the randomised trial of 201 patients shows no benefit of combinatorial pharmacogenomic testing on well-being at 12 months (difference -0.6; 95% CI -1.8 to 0.5), whereas a retrospective study of 6,224 patients linked such testing to better adherence (proportion of days covered 0.65 versus 0.61).
- ►NAT2 — long-read sequencing exceeds 99% diplotype accuracy across 1,828 samples and reveals 11 new star alleles, yet a 4-SNP panel already predicts phenotype correctly in more than 95% of subjects, except in non-white individuals.
- ►UGT1A1 — the only reproducible pharmacogenomic signal for dolutegravir, with an effect size too small to justify routine genotyping.
- ►CYP2C19 — among 114,627 participants on escitalopram or citalopram, 29.7% of poor metabolizers discontinue treatment for side effects versus 21.6% of ultrarapid metabolizers.
10 articles of 10
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TPMT
PubMedClinical Functional Assignment of TPMT and NUDT15 Alleles by the Clinical Pharmacogenetics Implementation Consortium Pharmacogene Curation Expert Panel.
Thiopurine toxicity and dose adjustment
8
ImmunosuppressantsCPIC Level ANew recommendation
Clin Pharmacol Ther 2026· AugRead
NAT2
PubMedCharacterization of NAT2 Using Long-Read Sequencing: Allele, Diplotype, and Phenotype Call Accuracy Compared to Other Testing Strategies.
Acetylator status and NAT2 pharmacogenetic typing
7
Recurrent variant
Clin Pharmacol Ther 2026· AugRead
CYP2C19
PubMedLarge-scale analysis demonstrates the influence of CYP2C19 genotype on specific SSRI side effects.
Selective serotonin reuptake inhibitor side effects
7
PsychiatryCPIC Level AAdverse reaction
Pharmacogenomics J 2026· AugRead
Psychiatry
PubMedComparative Effectiveness of Pharmacogenomics for Treatment of Depression.
Major depressive disorder
7
Psychiatry
J Clin Psychopharmacol 2026· AugRead
UGT1A1
PubMedPharmacogenomics of dolutegravir: A scoping review of evidence, gaps and clinical implications.
HIV infection treated with dolutegravir
7
Br J Clin Pharmacol 2026· JulRead
CYP2C19
PubMedPre-emptive CYP2C19 genotyping and voriconazole exposure in pediatric hematology patients at risk of aspergillosis: an exploratory randomized pilot study with a cost-consequence analysis.
Voriconazole exposure in paediatric haematology
5
CPIC Level APreemptive genotyping
Front Pharmacol 2026· AugRead
Psychiatry
PubMedMedication adherence following pharmacogenomic testing in patients with major depressive disorder.
Major depressive disorder
5
Psychiatry
Psychiatry Res 2026· AugRead
UGT1A1
PubMedA single-arm phase II trial of UGT1A1 genotype-guided high-dose irinotecan rechallenge in refractory metastatic colorectal cancer.
Refractory metastatic colorectal cancer
4
Dose recommendation
Front Oncol 2026· AugRead
CYP3A5
PubMedAssociation of a CCB-Related Pharmacogenomics-Guided Strategy with Blood Pressure Outcomes and Short-Term Safety in Chinese Patients with Hypertension: A Secondary Exploratory Analysis of Two Randomized Cohorts.
Hypertension treated with calcium channel blockers
4
Preemptive genotyping
Drug Healthc Patient Saf 2026· AugRead
Oncology
PubMedPharmacogenomic biomarkers in oncology: evidence, clinical utility, and barriers to implementation.
Pharmacogenomic biomarkers in oncology
3
OncologyCPIC Level ADose recommendation
J Chemother 2026· AugRead
References and sources
- TPMT — Thiopurine toxicity and dose adjustment. Clin Pharmacol Ther 2026. PMID 42560154. Score 8/10. https://pubmed.ncbi.nlm.nih.gov/42560154/
- NAT2 — Acetylator status and NAT2 pharmacogenetic typing. Clin Pharmacol Ther 2026. PMID 42572153. Score 7/10. https://pubmed.ncbi.nlm.nih.gov/42572153/
- CYP2C19 — Selective serotonin reuptake inhibitor side effects. Pharmacogenomics J 2026. PMID 42552300. Score 7/10. https://pubmed.ncbi.nlm.nih.gov/42552300/
- CYP2C19 — Voriconazole exposure in paediatric haematology. Front Pharmacol 2026. PMID 42553256. Score 5/10. https://pubmed.ncbi.nlm.nih.gov/42553256/
- UGT1A1 — Refractory metastatic colorectal cancer. Front Oncol 2026. PMID 42558275. Score 4/10. https://pubmed.ncbi.nlm.nih.gov/42558275/
- CYP3A5 — Hypertension treated with calcium channel blockers. Drug Healthc Patient Saf 2026. PMID 42553612. Score 4/10. https://pubmed.ncbi.nlm.nih.gov/42553612/
- Pharmacogenomic biomarkers in oncology. J Chemother 2026. PMID 42560047. Score 3/10. https://pubmed.ncbi.nlm.nih.gov/42560047/
- Major depressive disorder. Psychiatry Res 2026. PMID 42567079. Score 5/10. https://pubmed.ncbi.nlm.nih.gov/42567079/
- Major depressive disorder. J Clin Psychopharmacol 2026. PMID 42572938. Score 7/10. https://pubmed.ncbi.nlm.nih.gov/42572938/
- UGT1A1 — HIV infection treated with dolutegravir. Br J Clin Pharmacol 2026. PMID 42521219. Score 7/10. https://bpspubs.onlinelibrary.wiley.com/doi/10.1002/bcp.70721?af=R