Browsing by Author "Sangkuhl, Katrin"

Now showing 1 - 10 of 11
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    A Call for Clear and Consistent Communications Regarding the Role of Pharmacogenetics in Antidepressant Pharmacotherapy
    (Wiley, 2020-01) Hicks, J. Kevin; Bishop, Jeffrey R.; Gammal, Roseann S.; Sangkuhl, Katrin; Bousman, Chad; Leeder, J. Steven; Llerena, Adrián; Mueller, Daniel J.; Ramsey, Laura B.; Scott, Stuart A.; Skaar, Todd C.; Caudle, Kelly E.; Klein, Teri E.; Gaedigk, Andrea; Medicine, School of Medicine
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    Clinical Pharmacogenetics Implementation Consortium (CPIC) Guideline for CYP2C19 and Proton Pump Inhibitor Dosing
    (Wiley, 2021) Lima, John J.; Thomas, Cameron D.; Barbarino, Julia; Desta, Zeruesenay; Van Driest, Sara L.; El Rouby, Nihal; Johnson, Julie A.; Cavallari, Larisa H.; Shakhnovich, Valentina; Thacker, David L.; Scott, Stuart A.; Schwab, Matthias; Uppugunduri, Chakradhara Rao S.; Formea, Christine M.; Franciosi, James P.; Sangkuhl, Katrin; Gaedigk, Andrea; Klein, Teri E.; Gammal, Roseann S.; Furuta, Takahisa; Medicine, School of Medicine
    Proton pump inhibitors (PPIs) are widely used for acid suppression in the treatment and prevention of many conditions, including gastroesophageal reflux disease, gastric and duodenal ulcers, erosive esophagitis, Helicobacter pylori infection, and pathological hypersecretory conditions. Most PPIs are metabolized primarily by cytochrome P450 2C19 (CYP2C19) into inactive metabolites, and CYP2C19 genotype has been linked to PPI exposure, efficacy, and adverse effects. We summarize the evidence from the literature and provide therapeutic recommendations for PPI prescribing based on CYP2C19 genotype (updates at www.cpicpgx.org). The potential benefits of using CYP2C19 genotype data to guide PPI therapy include (i) identifying patients with genotypes predictive of lower plasma exposure and prescribing them a higher dose that will increase the likelihood of efficacy, and (ii) identifying patients on chronic therapy with genotypes predictive of higher plasma exposure and prescribing them a decreased dose to minimize the risk of toxicity that is associated with long-term PPI use, particularly at higher plasma concentrations.
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    Clinical Pharmacogenetics Implementation Consortium (CPIC) Guideline for CYP2D6 and CYP2C19 Genotypes and Dosing of Selective Serotonin Reuptake Inhibitors
    (Wiley, 2015-08) Hicks, J. Kevin; Bishop, Jeffrey R.; Sangkuhl, Katrin; Müller, Daniel J; Ji, Yuan; Leckband, Susan G.; Leeder, J. Steven; Graham, Rebecca L.; Chiulli, Dana L.; LLerena, Adrián; Skaar, Todd C.; Scott, Stuart A.; Stingl, Julia C.; Klein, Teri E.; Caudle, Kelly E.; Gaedigk, Andrea; Department of Medicine, IU School of Medicine
    Selective serotonin reuptake inhibitors (SSRIs) are primary treatment options for major depressive and anxiety disorders. CYP2D6 and CYP2C19 polymorphisms can influence the metabolism of SSRIs, thereby affecting drug efficacy and safety. We summarize evidence from the published literature supporting these associations and provide dosing recommendations for fluvoxamine, paroxetine, citalopram, escitalopram, and sertraline based on CYP2D6 and/or CYP2C19 genotype (updates at www.pharmgkb.org).
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    Clinical pharmacogenetics implementation consortium guideline (CPIC) for CYP2D6 and CYP2C19 genotypes and dosing of tricyclic antidepressants: 2016 update
    (Wiley, 2017-07) Hicks, J. Kevin; Sangkuhl, Katrin; Swen, Jesse J.; Ellingrod, Vicki L.; Müller, Daniel J.; Shimoda, Kazutaka; Bishop, Jeffrey R.; Kharasch, Evan D.; Skaar, Todd C.; Gaedigk, Andrea; Dunnenberger, Henry M.; Klein, Teri E.; Caudle, Kelly E.; Stingl, Julia C.; Medicine, School of Medicine
    CYP2D6 and CYP2C19 polymorphisms affect the exposure, efficacy and safety of tricyclic antidepressants (TCAs), with some drugs being affected by CYP2D6 only (e.g., nortriptyline and desipramine) and others by both polymorphic enzymes (e.g., amitriptyline, clomipramine, doxepin, imipramine, and trimipramine). Evidence is presented for CYP2D6 and CYP2C19 genotype-directed dosing of TCAs. This document is an update to the 2012 Clinical Pharmacogenetics Implementation Consortium (CPIC) guideline for CYP2D6 and CYP2C19 Genotypes and Dosing of Tricyclic Antidepressants.
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    Clinical Pharmacogenetics Implementation Consortium Guideline for CYP2D6, OPRM1, and COMT Genotypes and Select Opioid Therapy
    (Wiley, 2021) Crews, Kristine R.; Monte, Andrew A.; Huddart, Rachel; Caudle, Kelly E.; Kharasch, Evan D.; Gaedigk, Andrea; Dunnenberger, Henry M.; Leeder, J. Steven; Callaghan, John T.; Samer, Caroline Flora; Klein, Teri E.; Haidar, Cyrine E.; Van Driest, Sara L.; Ruano, Gualberto; Sangkuhl, Katrin; Cavallari, Larisa H.; Müller, Daniel J.; Prows, Cynthia A.; Nagy, Mohamed; Somogyi, Andrew A.; Skaar, Todd C.; Medicine, School of Medicine
    Opioids are mainly used to treat both acute and chronic pain. Several opioids are metabolized to some extent by CYP2D6 (codeine, tramadol, hydrocodone, oxycodone and methadone). Polymorphisms in CYP2D6 have been studied for an association with the clinical effect and safety of these drugs. Other genes which have been studied for their association with opioid clinical effect or adverse events include OPRM1 (mu receptor) and COMT (catechol-O-methyltransferase). This guideline updates and expands the 2014 Clinical Pharmacogenetics Implementation Consortium (CPIC) guideline for CYP2D6 genotype and codeine therapy and includes a summation of the evidence describing the impact of CYP2D6, OPRM1 and COMT on opioid analgesia and adverse events. We provide therapeutic recommendations for the use of CYP2D6 genotype results for prescribing codeine and tramadol and describe the limited and/or weak data for CYP2D6 and hydrocodone, oxycodone and methadone and for OPRM1 and COMT for clinical use.
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    Pharmacogenetic allele nomenclature: International workgroup recommendations for test result reporting
    (Wiley, 2016-02) Kalman, Lisa V.; Agúndez, José A.G.; Appell, Malin Lindqvist; Bell, Gillian C.; Boukouvala, Sotiria; Bruckner, Carsten; Bruford, Elspeth; Bruckner, Carsten; Caudle, Kelly; Coulthard, Sally; Daly, Ann K.; Del Tredici, Johan T.; Drozda, Katarzyna; Everts, Robin; Flockhart, David; Freimuth, Robert; Gaedigk, Andrea; Hachad, Houda; Hartshorne, Toinette; Ingelman-Sundberg, Magnus; Klein, Teri E.; Lauschke, Volker M.; Maglott, Donna R.; McLeod, Howard L.; McMillin, Gwendolyn A.; Meyer, Urs A.; Müller, Daniel J.; Nickerson, Deborah A.; Oetting, William S.; Pacanowski, Michael; Pratt, Victoria M.; Relling, Mary V.; Roberts, Ali; Rubinstein, Wendy S.; Sangkuhl, Katrin; Schwab, Matthias; Scott, Stuart A.; Sim, Sarah C.; Thirumaran, Ranjit K.; Toji, Lorraine H.; Tyndale, Rachel; van Schaik, Ron HN; Whirl-Carrillo, Michelle; Yeo, Kiang-Teck J.; Zanger, Ulrich M.; Department of Medical & Molecular Genetics, IU School of Medicine
    This manuscript provides nomenclature recommendations developed by an international workgroup to increase transparency and standardization of pharmacogenetic (PGx) result reporting. Presently, sequence variants identified by PGx tests are described using different nomenclature systems. In addition, PGx analysis may detect different sets of variants for each gene, which can affect interpretation of results. This practice has caused confusion and may thereby impede the adoption of clinical PGx testing. Standardization is critical to move PGx forward.
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    PharmVar GeneFocus: CYP2C19
    (Wiley, 2021) Botton, Mariana R.; Whirl-Carrillo, Michelle; Del Tredici, Andria L.; Sangkuhl, Katrin; Cavallari, Larisa H.; Agúndez, José A.; Duconge, Jorge; Lee, Ming Ta Michael; Woodahl, Erica L.; Claudio-Campos, Karla; Daly, Ann K.; Klein, Teri E.; Pratt, Victoria M.; Scott, Stuart A.; Gaedigk, Andrea; Medicine, School of Medicine
    The Pharmacogene Variation Consortium (PharmVar) catalogues star (*) allele nomenclature for the polymorphic human CYP2C19 gene. CYP2C19 genetic variation impacts the metabolism of many drugs and has been associated with both efficacy and safety issues for several commonly prescribed medications. This GeneFocus provides a comprehensive overview and summary of CYP2C19 and describes how haplotype information catalogued by PharmVar is utilized by the Pharmacogenomics Knowledgebase and the Clinical Pharmacogenetics Implementation Consortium (CPIC).
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    PharmVar GeneFocus: CYP2C9
    (Wiley, 2021-09) Sangkuhl, Katrin; Claudio‐Campos, Karla; Cavallari, Larisa H.; Agundez, Jose A.G.; Whirl‐Carrillo, Michelle; Duconge, Jorge; Del Tredici, Andria L.; Wadelius, Mia; Rodrigues Botton, Mariana; Woodahl, Erica L.; Scott, Stuart A.; Klein, Teri E.; Pratt, Victoria M.; Daly, Ann K.; Gaedigk, Andrea; Medical and Molecular Genetics, School of Medicine
    The Pharmacogene Variation Consortium (PharmVar) catalogues star (*) allele nomenclature for the polymorphic human CYP2C9 gene. Genetic variation within the CYP2C9 gene locus impacts the metabolism or bioactivation of many clinically important drugs including NSAIDs, phenytoin, anti-diabetic agents and angiotensin receptor blocker. Variable CYP2C9 activity is of particular importance regarding efficacy and safety of warfarin and siponimod as indicated in their package inserts. This GeneFocus provides a comprehensive overview and summary of CYP2C9 and describes how haplotype information catalogued by PharmVar is utilized by the Pharmacogenomics Knowledgebase (PharmGKB) and the Clinical Pharmacogenetics Implementation Consortium (CPIC).
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    PharmVar GeneFocus: CYP3A5
    (ASCPT, 2022-12) Rodriguez-Antona, Cristina; Savieo, Jessica L.; Lauschke, Volker M.; Sangkuhl, Katrin; Drögemöller, Britt I.; Wang, Danxin; van Schaik, Ron H. N.; Gilep, Andrei A.; Peter, Arul P.; Boone, Erin C.; Ramey, Bronwyn E.; Klein, Teri E.; Whirl-Carrillo, Michelle; Pratt, Victoria M.; Gaedigk, Andrea; Medicine, School of Medicine
    The Pharmacogene Variation Consortium (PharmVar) catalogs star (*) allele nomenclature for the polymorphic human CYP3A5 gene. Genetic variation within the CYP3A5 gene locus impacts the metabolism of several clinically important drugs, including the immunosuppressants tacrolimus, sirolimus, cyclosporine, and the benzodiazepine midazolam. Variable CYP3A5 activity is of clinical importance regarding tacrolimus metabolism. This GeneFocus provides a CYP3A5 gene summary with a focus on aspects regarding standardized nomenclature. In addition, this review also summarizes recent changes and updates including the retirement of several allelic variants and provides an overview of how PharmVar CYP3A5 star allele nomenclature is utilized by the Pharmacogenomics Knowledgebase (PharmGKB) and the Clinical Pharmacogenetics Implementation Consortium (CPIC).
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    PharmVar GeneFocus: CYP3A5
    (Wiley, 2022) Rodriguez-Antona, Cristina; Savieo, Jessica L.; Lauschke, Volker M.; Sangkuhl, Katrin; Drögemöller, Britt I.; Wang, Danxin; van Schaik, Ron H. N.; Gilep, Andrei A.; Prakasam Peter, Arul; Boone, Erin C.; Ramey, Bronwyn E.; Klein, Teri E.; Whirl-Carrillo, Michelle; Pratt, Victoria M.; Gaedigk, Andrea; Medicine, School of Medicine
    The Pharmacogene Variation Consortium (PharmVar) catalogs star (*) allele nomenclature for the polymorphic human CYP3A5 gene. Genetic variation within the CYP3A5 gene locus impacts the metabolism of several clinically important drugs, including the immunosuppressants tacrolimus, sirolimus, cyclosporine, and the benzodiazepine midazolam. Variable CYP3A5 activity is of clinical importance regarding tacrolimus metabolism. This GeneFocus provides a CYP3A5 gene summary with a focus on aspects regarding standardized nomenclature. In addition, this review also summarizes recent changes and updates, including the retirement of several allelic variants and provides an overview of how PharmVar CYP3A5 star allele nomenclature is utilized by the Pharmacogenomics Knowledgebase (PharmGKB) and the Clinical Pharmacogenetics Implementation Consortium (CPIC).