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Brouwer JMJL, Wardenaar KJ, Nolte IM, Liemburg EJ, Bet PM, Snieder H, Mulder H, Cath DC, Penninx BWJH. Association of CYP2D6 and CYP2C19 metabolizer status with switching and discontinuing antidepressant drugs: an exploratory study. BMC Psychiatry 2024; 24:394. [PMID: 38797832 PMCID: PMC11129450 DOI: 10.1186/s12888-024-05764-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Accepted: 04/15/2024] [Indexed: 05/29/2024] Open
Abstract
BACKGROUND Tailoring antidepressant drugs (AD) to patients' genetic drug-metabolism profile is promising. However, literature regarding associations of ADs' treatment effect and/or side effects with drug metabolizing genes CYP2D6 and CYP2C19 has yielded inconsistent results. Therefore, our aim was to longitudinally investigate associations between CYP2D6 (poor, intermediate, and normal) and CYP2C19 (poor, intermediate, normal, and ultrarapid) metabolizer-status, and switching/discontinuing of ADs. Next, we investigated whether the number of perceived side effects differed between metabolizer statuses. METHODS Data came from the multi-site naturalistic longitudinal cohort Netherlands Study of Depression and Anxiety (NESDA). We selected depression- and/or anxiety patients, who used AD at some point in the course of the 9 years follow-up period (n = 928). Medication use was followed to assess patterns of AD switching/discontinuation over time. CYP2D6 and CYP2C19 alleles were derived using genome-wide data of the NESDA samples and haplotype data from the PharmGKB database. Logistic regression analyses were conducted to investigate the association of metabolizer status with switching/discontinuing ADs. Mann-Whitney U-tests were conducted to compare the number of patient-perceived side effects between metabolizer statuses. RESULTS No significant associations were observed of CYP metabolizer status with switching/discontinuing ADs, nor with the number of perceived side effects. CONCLUSIONS We found no evidence for associations between CYP metabolizer statuses and switching/discontinuing AD, nor with side effects of ADs, suggesting that metabolizer status only plays a limited role in switching/discontinuing ADs. Additional studies with larger numbers of PM and UM patients are needed to further determine the potential added value of pharmacogenetics to guide pharmacotherapy.
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Affiliation(s)
- Jurriaan M J L Brouwer
- Research School of Behavioral and Cognitive Neurosciences, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands.
- GGZ Drenthe Mental Health Center Drenthe, Assen, The Netherlands.
- Department of Clinical Pharmacy, Wilhelmina Hospital Assen, Assen, The Netherlands.
- Department of Clinical Pharmacy, Martini Hospital Groningen, Van Swietenlaan 1, Groningen, 9728 NT, The Netherlands.
| | - Klaas J Wardenaar
- GGZ Drenthe Mental Health Center Drenthe, Assen, The Netherlands
- Department of Psychiatry, University Medical Center Groningen, Interdisciplinary Center Psychopathology and Emotion Regulation, University of Groningen, Groningen, The Netherlands
- Faculty of Behavioural and Social Sciences, University of Groningen, Groningen, The Netherlands
| | - Ilja M Nolte
- Department of Epidemiology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Edith J Liemburg
- GGZ Drenthe Mental Health Center Drenthe, Assen, The Netherlands
- Rob Giel Research Center, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Pierre M Bet
- Department of Clinical Pharmacology and Pharmacy, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Harold Snieder
- Rob Giel Research Center, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Hans Mulder
- Department of Clinical Pharmacy, Wilhelmina Hospital Assen, Assen, The Netherlands
| | - Danielle C Cath
- Research School of Behavioral and Cognitive Neurosciences, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
- GGZ Drenthe Mental Health Center Drenthe, Assen, The Netherlands
- Department of Epidemiology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Brenda W J H Penninx
- Department of Psychiatry, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Amsterdam Public Health, Amsterdam, The Netherlands
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Drent M, Wijnen PA, Jessurun NT, Harmsze AM, Bekers O, Bast A. Drug-Gene Risk Stratification in Patients with Suspected Drug-Induced Interstitial Lung Disease. Drug Saf 2024; 47:355-363. [PMID: 38460070 PMCID: PMC10955005 DOI: 10.1007/s40264-024-01400-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/18/2024] [Indexed: 03/11/2024]
Abstract
BACKGROUND Pulmonary toxicity has been associated with drug use. This is often not recognized in clinical practice, and underestimated. OBJECTIVE We aimed to establish whether polymorphisms in certain genes corresponding with a metabolic pathway of drug(s) used are associated with pulmonary toxicity in patients with suspected drug-induced interstitial lung disease (DI-ILD). METHODS This retrospective observational study explored genetic variations in three clinically relevant cytochrome P450 (CYP) iso-enzymes (i.e., CYP2D6, CYP2C9, and CYP2C19) in a group of patients with a fibroticinterstitial lung disease, either non-specific interstitial pneumonia (n = 211) or idiopathic pulmonary fibrosis (n = 256), with a suspected drug-induced origin. RESULTS Of the 467 patients, 79.0% showed one or more polymorphisms in the tested genes accompanied by the use of drug(s) metabolized by a corresponding affected metabolic pathway (60.0% poor metabolizers and/or using two or more drugs [likely DI-ILD], 37.5% using three or more [highly likely DI-ILD]). Most commonly used drugs were statins (63.1%) with a predominance among men (69.4 vs 47.1%, p < 0.0001). Nitrofurantoin, not metabolized by the tested pathways, was prescribed more frequently among women (51.9 vs 4.5%, p < 0.00001). CONCLUSIONS In our cohort with suspected DI-ILD, 79% carried one or more genetic variants accompanied by the use of drugs metabolized by a corresponding affected pathway. In 60%, the diagnosis of DI-ILD was likely, whereas in 37.5%, it was highly likely, based on CYP analyses. This study underlines the importance of considering both drug use and genetic make-up as a possible cause, or at least a contributing factor, in the development and/or progression of fibrotic lung diseases. CLINICAL TRIAL REGISTRATION ClinicalTrials.gov identifier NCT00267800, registered in 2005.
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Affiliation(s)
- Marjolein Drent
- Department of Pharmacology and Toxicology, Faculty of Health, Medicine, and Life Science, Maastricht University, Maastricht, The Netherlands.
- ILD Center of Excellence, St. Antonius Hospital, Nieuwegein, The Netherlands.
- Research Team, ILD Care Foundation, Heideoordlaan 8, 6711NR, Ede, The Netherlands.
| | - Petal A Wijnen
- ILD Center of Excellence, St. Antonius Hospital, Nieuwegein, The Netherlands
- Research Team, ILD Care Foundation, Heideoordlaan 8, 6711NR, Ede, The Netherlands
- Department of Clinical Chemistry, Central Diagnostic Laboratory, Maastricht University Medical Centre, P Debyelaan 25, 6229 HX, Maastricht, The Netherlands
| | - Naomi T Jessurun
- Research Team, ILD Care Foundation, Heideoordlaan 8, 6711NR, Ede, The Netherlands
- Netherlands Pharmacovigilance Centre Lareb, Goudsbloemvallei 7, 5237 MH, 's-Hertogenbosch, The Netherlands
| | - Ankie M Harmsze
- ILD Center of Excellence, St. Antonius Hospital, Nieuwegein, The Netherlands
- Department of Clinical Pharmacology, St. Antonius Hospital, Nieuwegein, The Netherlands
| | - Otto Bekers
- Department of Pharmacology and Toxicology, Faculty of Health, Medicine, and Life Science, Maastricht University, Maastricht, The Netherlands
- Department of Clinical Chemistry, Central Diagnostic Laboratory, Maastricht University Medical Centre, P Debyelaan 25, 6229 HX, Maastricht, The Netherlands
| | - Aalt Bast
- Department of Pharmacology and Toxicology, Faculty of Health, Medicine, and Life Science, Maastricht University, Maastricht, The Netherlands
- Research Team, ILD Care Foundation, Heideoordlaan 8, 6711NR, Ede, The Netherlands
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Milosavljević F, Molden PE, Ingelman-Sundberg PM, Jukić APMM. Current level of evidence for improvement of antidepressant efficacy and tolerability by pharmacogenomic-guided treatment: A Systematic review and meta-analysis of randomized controlled clinical trials. Eur Neuropsychopharmacol 2024; 81:43-52. [PMID: 38340605 DOI: 10.1016/j.euroneuro.2024.01.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 01/11/2024] [Accepted: 01/15/2024] [Indexed: 02/12/2024]
Abstract
The aim of the study was to assess the clinical utility of currently available pharmacogenomic (PGx) tools compared with treatment as usual (TAU), using a meta-analysis of dichotomous and continuous antidepressant efficacy and tolerability data from previously published clinical trials. MEDLINE, clinicaltrial.gov, EU Clinical Trials Register, WHO ICTRP and CENTRAL were systematically searched; of the 962 results originally reviewed, 15 trials were included. Antidepressant efficacy was quantified by relative and absolute changes in symptom severity after eight weeks of treatment and by response and remission rates, while tolerability was estimated by the rate of study discontinuation for any reason. In the PGx-guided patients, symptom severity reduced by an average of 31.0% after eight weeks of treatment, compared to an average reduction of 26.8% in the TAU group. Accordingly, PGx-guided patients experienced a greater reduction in symptom severity of 3.4% (95%CI: 1.6-5.3%), which corresponded to a reduction in the Hamilton Depression score of 0.75 (0.30-1.21), a 37% (15-63%) higher remission rate, and an 18% (5-33%) higher response rate compared with TAU patients, while no difference was observed in discontinuation rate between groups. Notably, the majority of associations lost statistical significance when restricting the dataset to low risk of bias studies, while certain funnel plots suggested a potential publication bias favoring the reporting of statistically significant results. In summary, PGx tools marginally enhance antidepressant efficacy, but not antidepressant tolerability; thus, additional research and advancement of PGx tools are needed to improve integration of PGx in clinical pharmacotherapy of depression.
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Affiliation(s)
- Filip Milosavljević
- Department of Physiology, Faculty of Pharmacy, University of Belgrade, Belgrade, Serbia
| | - Prof Espen Molden
- Center for Psychopharmacology, Diakonhjemmet Hospital, Oslo, Norway; Section for Pharmacology and Pharmaceutical Biosciences, Department of Pharmacy, University of Oslo, Oslo, Norway
| | | | - Assoc Prof Marin M Jukić
- Department of Physiology, Faculty of Pharmacy, University of Belgrade, Belgrade, Serbia; Pharmacogenetics Section, Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden.
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Chenchula S, Atal S, Uppugunduri CRS. A review of real-world evidence on preemptive pharmacogenomic testing for preventing adverse drug reactions: a reality for future health care. THE PHARMACOGENOMICS JOURNAL 2024; 24:9. [PMID: 38490995 PMCID: PMC10942860 DOI: 10.1038/s41397-024-00326-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 02/02/2024] [Accepted: 02/06/2024] [Indexed: 03/18/2024]
Abstract
Adverse drug reactions (ADRs) are a significant public health concern and a leading cause of hospitalization; they are estimated to be the fourth leading cause of death and increasing healthcare costs worldwide. Carrying a genetic variant could alter the efficacy and increase the risk of ADRs associated with a drug in a target population for commonly prescribed drugs. The use of pre-emptive pharmacogenetic/omic (PGx) testing can improve drug therapeutic efficacy, safety, and compliance by guiding the selection of drugs and/or dosages. In the present narrative review, we examined the current evidence of pre-emptive PGx testing-based treatment for the prevention of ADRs incidence and hospitalization or emergency department visits due to serious ADRs, thus improving patient safety. We then shared our perspective on the importance of preemptive PGx testing in clinical practice for the safe use of medicines and decreasing healthcare costs.
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Affiliation(s)
- Santenna Chenchula
- Department of Pharmacology, All India Institute of Medical Sciences (AIIMS), Bhopal, India
| | - Shubham Atal
- Department of Pharmacology, All India Institute of Medical Sciences (AIIMS), Bhopal, India
| | - Chakradhara Rao S Uppugunduri
- CANSEARCH Research Platform in Pediatric Oncology and Hematology, Department of Pediatrics, Gynecology and Obstetrics, University of Geneva, Geneva, Switzerland.
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Kishi T, Ikuta T, Sakuma K, Hatano M, Matsuda Y, Esumi S, Miyake N, Miura I, Kato M, Iwata N. Safety profile of antidepressant for Japanese adults with major depressive disorder: A systematic review and network meta-analysis. Psychiatry Clin Neurosci 2024; 78:142-144. [PMID: 37984427 DOI: 10.1111/pcn.13622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 10/17/2023] [Accepted: 11/13/2023] [Indexed: 11/22/2023]
Affiliation(s)
- Taro Kishi
- Department of Psychiatry, Fujita Health University School of Medicine, Toyoake, Japan
| | - Toshikazu Ikuta
- Department of Communication Sciences and Disorders, School of Applied Sciences, University of Mississippi, University, Mississippi, USA
| | - Kenji Sakuma
- Department of Psychiatry, Fujita Health University School of Medicine, Toyoake, Japan
| | - Masakazu Hatano
- Department of Pharmacotherapeutics and Informatics, Fujita Health University School of Medicine, Toyoake, Japan
| | - Yuki Matsuda
- Department of Psychiatry, Jikei University School of Medicine, Tokyo, Japan
| | - Satoru Esumi
- Faculty of Pharmaceutical Sciences, Kobe Gakuin University, Kobe, Japan
| | - Nobumi Miyake
- Department of Neuropsychiatry, St. Marianna University School of Medicine, Kawasaki, Japan
| | - Itaru Miura
- Department of Neuropsychiatry, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Masaki Kato
- Department of Neuropsychiatry, Kansai Medical University, Osaka, Japan
| | - Nakao Iwata
- Department of Psychiatry, Fujita Health University School of Medicine, Toyoake, Japan
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Pelgrim TAD, Philipsen A, Young AH, Juruena M, Jimenez E, Vieta E, Jukić M, Van der Eycken E, Heilbronner U, Moldovan R, Kas MJH, Jagesar RR, Nöthen MM, Hoffmann P, Shomron N, Kilarski LL, van Amelsvoort T, Campforts B, van Westrhenen R. A New Intervention for Implementation of Pharmacogenetics in Psychiatry: A Description of the PSY-PGx Clinical Study. Pharmaceuticals (Basel) 2024; 17:151. [PMID: 38399366 PMCID: PMC10892863 DOI: 10.3390/ph17020151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 01/15/2024] [Accepted: 01/18/2024] [Indexed: 02/25/2024] Open
Abstract
(1) Background Pharmacological treatment for psychiatric disorders has shown to only be effective in about one-third of patients, as it is associated with frequent treatment failure, often because of side effects, and a long process of trial-and-error pharmacotherapy until an effective and tolerable treatment is found. This notion emphasizes the urgency for a personalized medicine approach in psychiatry. (2) Methods This prospective patient- and rater-blinded, randomized, controlled study will investigate the effect of dose-adjustment of antidepressants escitalopram and sertraline or antipsychotics risperidone and aripiprazole according to the latest state-of-the-art international dosing recommendations for CYP2C19 and CYP2D6 metabolizer status in patients with mood, anxiety, and psychotic disorders. A total sample of N = 2500 will be recruited at nine sites in seven countries (expected drop-out rate of 30%). Patients will be randomized to a pharmacogenetic group or a dosing-as-usual group and treated over a 24-week period with four study visits. The primary outcome is personal recovery using the Recovery Assessment Scale as assessed by the patient (RAS-DS), with secondary outcomes including clinical effects (response or symptomatic remission), side effects, general well-being, digital phenotyping, and psychosocial functioning. (3) Conclusions This is, to our knowledge, the first international, multi-center, non-industry-sponsored randomized controlled trial (RCT) that may provide insights into the effectiveness and utility of implementing pharmacogenetic-guided treatment of psychiatric disorders, and as such, results will be incorporated in already available dosing guidelines.
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Affiliation(s)
- Teuntje A. D. Pelgrim
- Department of Psychiatry, Parnassia Psychiatric Institute, 1062HN Amsterdam, The Netherlands
| | - Alexandra Philipsen
- Department of Psychiatry and Psychotherapy, University of Bonn, 53105 Bonn, Germany
| | - Allan H. Young
- Department of Psychological Medicine, Institute of Psychiatry, Psychology and Neuroscience, King’s College London & South London and Maudsley NHS Foundation Trust, Bethlem Royal Hospital, Monks Orchard Road Beckenham, Kent BR3 3BX, UK
| | - Mario Juruena
- Department of Psychological Medicine, Institute of Psychiatry, Psychology and Neuroscience, King’s College London & South London and Maudsley NHS Foundation Trust, Bethlem Royal Hospital, Monks Orchard Road Beckenham, Kent BR3 3BX, UK
| | - Ester Jimenez
- Bipolar and Depressive Disorders Unit, Department of Psychiatry and Psychology, Hospital Clinic & Institute of Neurosciences (UBNeuro), IDIBAPS, CIBERSAM, ISCIII, University of Barcelona, 08036 Catalonia, Spain
| | - Eduard Vieta
- Bipolar and Depressive Disorders Unit, Department of Psychiatry and Psychology, Hospital Clinic & Institute of Neurosciences (UBNeuro), IDIBAPS, CIBERSAM, ISCIII, University of Barcelona, 08036 Catalonia, Spain
| | - Marin Jukić
- Department of Physiology, Faculty of Pharmacy, University of Belgrade, 11000 Belgrade, Serbia
- Department of Physiology & Pharmacology, Karolinska Institute, 171 77 Stockholm, Sweden
| | - Erik Van der Eycken
- Global Alliance of Mental Illness Advocacy Networks-Europe (GAMIAN-Europe), 1050 Brussels, Belgium
| | - Urs Heilbronner
- Institute of Psychiatric Phenomics and Genomics (IPPG), LMU University Hospital, LMU Munich, 80336 Munich, Germany
| | - Ramona Moldovan
- Department of Psychology, Babeş-Bolyai University, 400015 Cluj-Napoca, Romania
- Division of Evolution, Infection and Genomic Sciences, School of Biological Sciences, University of Manchester, Manchester M13 9PT, UK
- Manchester Center for Genomic Medicine, St. Mary’s Hospital, Manchester University NHS Foundation Trust, Manchester M13 9WL, UK
| | - Martien J. H. Kas
- Groningen Institute for Evolutionary Life Sciences, University of Groningen, 9700CC Groningen, The Netherlands
| | - Raj R. Jagesar
- Groningen Institute for Evolutionary Life Sciences, University of Groningen, 9700CC Groningen, The Netherlands
| | - Markus M. Nöthen
- Institute of Human Genetics, University Hospital of Bonn and University of Bonn, 53127 Bonn, Germany
| | - Per Hoffmann
- Institute of Human Genetics, University Hospital of Bonn and University of Bonn, 53127 Bonn, Germany
| | - Noam Shomron
- Faculty of Medicine, Tel Aviv University, Tel Aviv 69978, Israel
| | - Laura L. Kilarski
- Department of Psychiatry and Psychotherapy, University of Bonn, 53105 Bonn, Germany
| | - Thérèse van Amelsvoort
- Department of Psychiatry and Neuropsychology, Maastricht University, 6226NB Maastricht, The Netherlands
| | - Bea Campforts
- Department of Psychiatry and Neuropsychology, Maastricht University, 6226NB Maastricht, The Netherlands
| | | | - Roos van Westrhenen
- Department of Psychiatry, Parnassia Psychiatric Institute, 1062HN Amsterdam, The Netherlands
- Department of Psychological Medicine, Institute of Psychiatry, Psychology and Neuroscience, King’s College London & South London and Maudsley NHS Foundation Trust, Bethlem Royal Hospital, Monks Orchard Road Beckenham, Kent BR3 3BX, UK
- Department of Psychiatry and Neuropsychology, Maastricht University, 6226NB Maastricht, The Netherlands
- St. John’s National Academy of Health Sciences, Bangalore 560034, India
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Nogueiras-Álvarez R. Pharmacogenomics in clinical trials: an overview. Front Pharmacol 2023; 14:1247088. [PMID: 37927590 PMCID: PMC10625420 DOI: 10.3389/fphar.2023.1247088] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Accepted: 10/02/2023] [Indexed: 11/07/2023] Open
Abstract
With the trend towards promoting personalised medicine (PM), the application of pharmacogenetics and pharmacogenomics (PGx) is of growing importance. For the purposes of clinical trials, the inclusion of PGx is an additional tool that should be considered for improving our knowledge about the effectiveness and safety of new drugs. A search of available clinical trials containing pharmacogenetic and PGx information was conducted on ClinicalTrials.gov. The results show there has been an increase in the number of trials containing PGx information since the 2000 s, with particular relevance in the areas of Oncology (28.43%) and Mental Health (10.66%). Most of the clinical trials focus on treatment as their primary purpose. In those clinical trials entries where the specific genes considered for study are detailed, the most frequently explored genes are CYP2D6 (especially in Mental Health and Pain), CYP2C9 (in Hematology), CYP2C19 (in Cardiology and Mental Health) and ABCB1 and CYP3A5 (particularly prominent in Transplantation and Cardiology), among others. Researchers and clinicans should be trained in pharmacogenetics and PGx in order to be able to make a proper interpretation of this data, contributing to better prescribing decisions and an improvement in patients' care, which would lead to the performance of PM.
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Forbes M, Hopwood M, Bousman CA. CYP2D6 and CYP2C19 Variant Coverage of Commercial Antidepressant Pharmacogenomic Testing Panels Available in Victoria, Australia. Genes (Basel) 2023; 14:1945. [PMID: 37895294 PMCID: PMC10606650 DOI: 10.3390/genes14101945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 10/08/2023] [Accepted: 10/12/2023] [Indexed: 10/29/2023] Open
Abstract
Pharmacogenomic (PGx) testing to inform antidepressant medication selection and dosing is gaining attention from healthcare professionals, patients, and payors in Australia. However, there is often uncertainty regarding which test is most suitable for a particular patient. Here, we identified and evaluated the coverage of CYP2D6 and CYP2C19 variants in commercial antidepressant PGx testing panels in Victoria, a large and ethnically diverse state of Australia. Test characteristics and star alleles tested for both genes were obtained directly from pathology laboratories offering PGx testing and compared against the Association of Molecular Pathology's recommended minimum (Tier 1) and extended (Tier 2) allele sets. Although all tests covered the minimum recommended alleles for CYP2C19, this was not the case for CYP2D6. This study emphasizes that PGx tests might not be suitable for all individuals in Australia due to the limited range of star alleles assessed. Inadequate haplotype coverage may risk misclassification of an individual's predicted metabolizer phenotype, which has ramifications for depression medication selection and dosage. This study underscores the urgent need for greater standardization in PGx testing and emphasizes the importance of considering genetic ancestry when choosing a PGx testing panel to ensure optimal clinical applicability.
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Affiliation(s)
- Malcolm Forbes
- The Institute for Mental and Physical Health and Clinical Translation (IMPACT), School of Medicine, Barwon Health, Deakin University, Geelong, VIC 3220, Australia
- Department of Psychiatry, University of Melbourne, Parkville, VIC 3050, Australia; (M.H.); (C.A.B.)
| | - Mal Hopwood
- Department of Psychiatry, University of Melbourne, Parkville, VIC 3050, Australia; (M.H.); (C.A.B.)
| | - Chad A. Bousman
- Department of Psychiatry, University of Melbourne, Parkville, VIC 3050, Australia; (M.H.); (C.A.B.)
- Department of Medical Genetics, University of Calgary, Calgary, AB T2N 4N2, Canada
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Roberts B, Cooper Z, Lu S, Stanley S, Majda BT, Collins KRL, Gilkes L, Rodger J, Akkari PA, Hood SD. Utility of pharmacogenetic testing to optimise antidepressant pharmacotherapy in youth: a narrative literature review. Front Pharmacol 2023; 14:1267294. [PMID: 37795032 PMCID: PMC10545970 DOI: 10.3389/fphar.2023.1267294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Accepted: 08/30/2023] [Indexed: 10/06/2023] Open
Abstract
Pharmacogenetics (PGx) is the study and application of how interindividual differences in our genomes can influence drug responses. By evaluating individuals' genetic variability in genes related to drug metabolism, PGx testing has the capabilities to individualise primary care and build a safer drug prescription model than the current "one-size-fits-all" approach. In particular, the use of PGx testing in psychiatry has shown promising evidence in improving drug efficacy as well as reducing toxicity and adverse drug reactions. Despite randomised controlled trials demonstrating an evidence base for its use, there are still numerous barriers impeding its implementation. This review paper will discuss the management of mental health conditions with PGx-guided treatment with a strong focus on youth mental illness. PGx testing in clinical practice, the concerns for its implementation in youth psychiatry, and some of the barriers inhibiting its integration in clinical healthcare will also be discussed. Overall, this paper provides a comprehensive review of the current state of knowledge and application for PGx in psychiatry and summarises the capabilities of genetic information to personalising medicine for the treatment of mental ill-health in youth.
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Affiliation(s)
- Bradley Roberts
- The Perron Institute for Neurological and Translational Science, Nedlands, WA, Australia
- School of Biological Sciences, University of Western Australia, Crawley, WA, Australia
| | - Zahra Cooper
- The Perron Institute for Neurological and Translational Science, Nedlands, WA, Australia
| | - Stephanie Lu
- School of Psychological Science, University of Western Australia, Crawley, WA, Australia
| | - Susanne Stanley
- Division of Psychiatry, School of Medicine, University of Western Australia, Crawley, WA, Australia
| | | | - Khan R. L. Collins
- Western Australian Department of Health, North Metropolitan Health Service, Perth, WA, Australia
| | - Lucy Gilkes
- School of Medicine, University of Notre Dame, Fremantle, WA, Australia
- Divison of General Practice, School of Medicine, University of Western Australia, Crawley, WA, Australia
| | - Jennifer Rodger
- The Perron Institute for Neurological and Translational Science, Nedlands, WA, Australia
- School of Biological Sciences, University of Western Australia, Crawley, WA, Australia
| | - P. Anthony Akkari
- The Perron Institute for Neurological and Translational Science, Nedlands, WA, Australia
- School of Human Sciences, University of Western Australia, Crawley, WA, Australia
- Centre for Molecular Medicine and Innovative Therapeutics, Murdoch University, Murdoch, WA, Australia
- Division of Neurology, Duke University Medical Centre, Duke University, Durham, United States
| | - Sean D. Hood
- Division of Psychiatry, School of Medicine, University of Western Australia, Crawley, WA, Australia
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Gentile G, De Luca O, Del Casale A, Salerno G, Simmaco M, Borro M. Frequencies of Combined Dysfunction of Cytochromes P450 2C9, 2C19, and 2D6 in an Italian Cohort: Suggestions for a More Appropriate Medication Prescribing Process. Int J Mol Sci 2023; 24:12696. [PMID: 37628884 PMCID: PMC10454797 DOI: 10.3390/ijms241612696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 08/07/2023] [Accepted: 08/10/2023] [Indexed: 08/27/2023] Open
Abstract
Improper drug prescription is a main cause of both drug-related harms (inefficacy and toxicity) and ineffective spending and waste of the healthcare system's resources. Nowadays, strategies to support an improved, informed prescription process may benefit from the adequate use of pharmacogenomic testing. Using next-generation sequencing, we analyzed the genomic profile for three major cytochromes P450 (CYP2C9, CYP2C19, CYP2D6) and studied the frequencies of dysfunctional isozymes (e.g., poor, intermediate, or rapid/ultra-rapid metabolizers) in a cohort of 298 Italian subjects. We found just 14.8% of subjects with a fully normal set of cytochromes, whereas 26.5% of subjects had combined cytochrome dysfunction (more than one isozyme involved). As improper drug prescription is more frequent, and more burdening, in polytreated patients, since drug-drug interactions also cause patient harm, we discuss the potential benefits of a more comprehensive PGX testing approach to support informed drug selection in such patients.
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Affiliation(s)
- Giovanna Gentile
- Department of Neurosciences, Mental Health and Sensory Organs (NESMOS), Sapienza University, Via di Grottarossa 1035/1039, 00189 Rome, Italy; (G.G.); (G.S.); (M.S.)
- Laboratory of Clinical Biochemistry, Advanced Molecular Diagnostic Unit, Sant’Andrea University Hospital, Via di Grottarossa 1035/1039, 00189 Rome, Italy
| | - Ottavia De Luca
- Laboratory of Clinical Biochemistry, Advanced Molecular Diagnostic Unit, Sant’Andrea University Hospital, Via di Grottarossa 1035/1039, 00189 Rome, Italy
| | - Antonio Del Casale
- Department of Dynamic and Clinical Psychology and Health Studies, Faculty of Medicine and Psychology, Sapienza University of Rome, 00189 Roma, Italy;
- Unit of Psychiatry, Sant’Andrea University Hospital, Via di Grottarossa 1035/1039, 00189 Rome, Italy
| | - Gerardo Salerno
- Department of Neurosciences, Mental Health and Sensory Organs (NESMOS), Sapienza University, Via di Grottarossa 1035/1039, 00189 Rome, Italy; (G.G.); (G.S.); (M.S.)
- Laboratory of Clinical Biochemistry, Advanced Molecular Diagnostic Unit, Sant’Andrea University Hospital, Via di Grottarossa 1035/1039, 00189 Rome, Italy
| | - Maurizio Simmaco
- Department of Neurosciences, Mental Health and Sensory Organs (NESMOS), Sapienza University, Via di Grottarossa 1035/1039, 00189 Rome, Italy; (G.G.); (G.S.); (M.S.)
- Laboratory of Clinical Biochemistry, Advanced Molecular Diagnostic Unit, Sant’Andrea University Hospital, Via di Grottarossa 1035/1039, 00189 Rome, Italy
| | - Marina Borro
- Department of Neurosciences, Mental Health and Sensory Organs (NESMOS), Sapienza University, Via di Grottarossa 1035/1039, 00189 Rome, Italy; (G.G.); (G.S.); (M.S.)
- Laboratory of Clinical Biochemistry, Advanced Molecular Diagnostic Unit, Sant’Andrea University Hospital, Via di Grottarossa 1035/1039, 00189 Rome, Italy
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Kleine Schaars K, van Westrhenen R. Pharmacogenomics and the Management of Mood Disorders-A Review. J Pers Med 2023; 13:1183. [PMID: 37511796 PMCID: PMC10381396 DOI: 10.3390/jpm13071183] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 07/13/2023] [Accepted: 07/22/2023] [Indexed: 07/30/2023] Open
Abstract
Due to the chronic relapsing nature of mental disorders and increased life expectancy, the societal burden of these non-communicable diseases will increase even further. Treatments for mental disorders, such as depression, are available, but their effect is limited due to patients' (genetic) heterogeneity, low treatment compliance and frequent side effects. In general, only one-third of the patients respond to treatment. Today, medication selection in psychiatry relies on a trial-and-error approach based mainly on physicians' experience. Pharmacogenetic (PGx) testing can help in this process by determining the person-specific genetic factors that may predict clinical response and side effects associated with genetic variants that impact drug-metabolizing enzymes, drug transporters or drug targets. PGxis a discipline that investigates genetic factors that affect the absorption, metabolism, and transport of drugs, thereby affecting therapy outcome. These genetic factors can, among other things, lead to differences in the activity of enzymes that metabolize drugs. Studies in depressed patients show that genotyping of drug-metabolizing enzymes can increase the effectiveness of treatment, which could benefit millions of patients worldwide. This review highlights these studies, gives recommendations and provides future perspectives on how to proceed with PGx testing. Finally, it is recommended to consider genotyping for CYP2D6 and CYP2C19, when there is an indication (side effects or inefficacy).
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Affiliation(s)
- Kristian Kleine Schaars
- Outpatient Clinic Pharmacogenetics, Parnassia Psychiatric Institute/PsyQ, Overschiestraat 57, 1062 HN Amsterdam, The Netherlands
| | - Roos van Westrhenen
- Outpatient Clinic Pharmacogenetics, Parnassia Psychiatric Institute/PsyQ, Overschiestraat 57, 1062 HN Amsterdam, The Netherlands
- Institute of Psychiatry, Psychology & Neuroscience (IoPPN), King's College London, De Crespigny Park, Denmark Hill, London SES 8AF, UK
- Department of Psychiatry & Neuropsychology, Faculty of Health, Medicine and Life Sciences, Maastricht University, P.O. Box 6161, 6229 ER Maastricht, The Netherlands
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