Impact of CYP2D6 and CYP2B6 phenotypes on the response to tramadol in patients with acute post-surgical pain

Clin Transl Sci. 2023 Dec 22. doi: 10.1111/cts.13698. Online ahead of print. ABSTRACT Tramadol is an important minor opioid prescribed for pain management. In this work, we analyzed the well-known impact of CYP2D6 genetic variation and 60 additional variants in eight candidate genes (i.e., ABCG2, SLCO1B1, CYP2D6, CYP2B6, CYP2C19, CYP2C9, CYP3A5 and CYP3A4) on tramadol…

Use of glucarpidase (carboxypeptidase-G2) in pediatric cancer patients: 11-year experience of a tertiary center

EJHaem. 2023 Sep 27;4(4):1052-1058. doi: 10.1002/jha2.799. eCollection 2023 Nov. ABSTRACT Methotrexate is an essential drug in the treatment of childhood cancer that is not exempt from toxicities. Glucarpidase is a drug used to reduce the toxic concentration of plasma methotrexate in patients with delayed elimination or at risk of toxicity. We describe the characteristics of…

Food Administration and Not Genetic Variants Causes Pharmacokinetic Variability of Tadalafil and Finasteride

J Pers Med. 2023 Oct 31;13(11):1566. doi: 10.3390/jpm13111566. ABSTRACT Tadalafil and finasteride are used in combination for the management of benign prostatic hyperplasia (BPH). Genetic variations in genes involved in the metabolism and transport of tadalafil or finasteride (i.e., pharmacogenes) could affect their pharmacokinetic processes altering their drug exposure, efficacy, and toxicity. The main objective…

Impact of Sex and Genetic Variation in Relevant Pharmacogenes on the Pharmacokinetics and Safety of Valsartan, Olmesartan and Hydrochlorothiazide

Int J Mol Sci. 2023 Oct 17;24(20):15265. doi: 10.3390/ijms242015265. ABSTRACT Drug combination therapy is the most common pharmacological strategy for hypertension management. No pharmacogenetic biomarkers for guiding hypertension pharmacotherapy are available to date. The study population were 64 volunteers from seven bioequivalence trials investigating formulations with valsartan, olmesartan and/or hydrochlorothiazide. Every volunteer was genotyped for…

Academia and industry agreement on a feasibility tool for first-time-in-human clinical trial units

Clin Transl Sci. 2023 Oct 11. doi: 10.1111/cts.13655. Online ahead of print. ABSTRACT First-time-in-human (FTIH) trials are designed to generate information on the safety, tolerability, as well as the pharmacokinetic and pharmacodynamics profile of new drugs. To ensure the safety of participants, these trials need to be conducted at specifically equipped phase I clinical trial…

Occurrence of SARS-CoV-2 viremia is associated with genetic variants of genes related to COVID-19 pathogenesis

Front Med (Lausanne). 2023 Sep 22;10:1215246. doi: 10.3389/fmed.2023.1215246. eCollection 2023. ABSTRACT INTRODUCTION: SARS-CoV-2 viral load has been related to COVID-19 severity. The main aim of this study was to evaluate the relationship between SARS-CoV-2 viremia and SNPs in genes previously studied by our group as predictors of COVID-19 severity. MATERIALS AND METHODS: Retrospective observational study…

Preemptive TPMT Genotyping and Adherence to Genotype-Based Therapeutic Recommendations Reduces the Healthcare Cost in Patients Receiving Azathioprine or 6-Mercaptopurine for Autoimmune Diseases

J Pers Med. 2023 Jul 29;13(8):1208. doi: 10.3390/jpm13081208. ABSTRACT A cost analysis of thiopurine treatment was carried out in 257 patients, with 153 preemptively genotyped for TPMT and 104 retrospectively genotyped in a Spanish setting. The healthcare cost was significantly higher in patients retrospectively genotyped compared to those who were preemptively genotyped (p < 0.001).…

Impact of CYP2C:TG haplotype on CYP2C19 substrates clearance in vivo, protein content and in vitro activity

Clin Pharmacol Ther. 2023 Aug 1. doi: 10.1002/cpt.3012. Online ahead of print. ABSTRACT A novel haplotype composed of two non-coding variants, CYP2C18 NM_000772.3:c.*31T (rs2860840) and NM_000772.2:c.819+2182G (rs11188059), referred to as “CYP2C:TG”, was recently associated with ultrarapid metabolism of various CYP2C19 substrates. As the underlying mechanism and clinical relevance of this effect remain uncertain, we analyzed…

NAT2 phenotype alters pharmacokinetics of rivaroxaban in healthy volunteers

Rivaroxaban is a direct inhibitor of factor Xa, a member of direct oral anticoagulant group of drugs (DOACs). Despite being a widely extended alternative to vitamin K antagonists (i.e., acenocoumarol, warfarin) the interindividual variability of DOACs is significant, and may be related to adverse drug reaction occurrence or drug inefficacy, namely hemorrhagic or thromboembolic events.