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Vest BM, Wray LO, Thase ME, Brady LA, Chapman SR, Oslin DW. Providers' Use of Pharmacogenetic Testing to Inform Antidepressant Prescribing: Results of Qualitative Interviews. Psychiatr Serv 2023; 74:1270-1276. [PMID: 37528698 DOI: 10.1176/appi.ps.20220537] [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] [Indexed: 08/03/2023]
Abstract
OBJECTIVE Pharmacogenetic testing (PGx) for patients experiencing depression has been associated with modest improvements in symptoms. However, little is known about providers' use of PGx, including how and for whom providers use the test results in clinical decision making. In this article, results from qualitative interviews on the experience of providers participating in a pragmatic trial of PGx are described; implications of the providers' experiences are highlighted to inform future implementation of PGx. METHODS Interviews were conducted with providers participating in the trial (N=61) who treated veterans who had depression. Questions were informed by the Consolidated Framework for Implementation Research. A rapid analytic approach was used. RESULTS Two main themes were identified: perceptions regarding which patients would likely benefit from PGx and approaches to using the test results in prescribing. Providers generally expressed positive experiences with using PGx results. However, the providers varied in application of the test results to clinical decision making regarding medications, were uncertain about how much to rely on the results, and differed in perceptions about which patients would benefit from PGx. CONCLUSIONS To support future implementation, policies and procedures are needed, as well as mechanisms to support ongoing provider education on PGx.
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Affiliation(s)
- Bonnie M Vest
- Department of Family Medicine, Jacobs School of Medicine and Biomedical Sciences, State University of New York at Buffalo, Buffalo (Vest, Wray, Brady); Center for Integrated Healthcare, U.S. Department of Veterans Affairs (VA) Western New York Healthcare System, Buffalo (Vest, Wray); Veterans Integrated Service Network (VISN) 4, Mental Illness, Research, Education and Clinical Center (MIRECC), Corporal Michael J. Crescenz VA Medical Center, Philadelphia (Thase, Oslin); Department of Psychiatry, Perelman School of Medicine, University of Pennsylvania, Philadelphia (Thase, Oslin); VISN 4 MIRECC, VA Pittsburgh Healthcare System, Pittsburgh (Chapman)
| | - Laura O Wray
- Department of Family Medicine, Jacobs School of Medicine and Biomedical Sciences, State University of New York at Buffalo, Buffalo (Vest, Wray, Brady); Center for Integrated Healthcare, U.S. Department of Veterans Affairs (VA) Western New York Healthcare System, Buffalo (Vest, Wray); Veterans Integrated Service Network (VISN) 4, Mental Illness, Research, Education and Clinical Center (MIRECC), Corporal Michael J. Crescenz VA Medical Center, Philadelphia (Thase, Oslin); Department of Psychiatry, Perelman School of Medicine, University of Pennsylvania, Philadelphia (Thase, Oslin); VISN 4 MIRECC, VA Pittsburgh Healthcare System, Pittsburgh (Chapman)
| | - Michael E Thase
- Department of Family Medicine, Jacobs School of Medicine and Biomedical Sciences, State University of New York at Buffalo, Buffalo (Vest, Wray, Brady); Center for Integrated Healthcare, U.S. Department of Veterans Affairs (VA) Western New York Healthcare System, Buffalo (Vest, Wray); Veterans Integrated Service Network (VISN) 4, Mental Illness, Research, Education and Clinical Center (MIRECC), Corporal Michael J. Crescenz VA Medical Center, Philadelphia (Thase, Oslin); Department of Psychiatry, Perelman School of Medicine, University of Pennsylvania, Philadelphia (Thase, Oslin); VISN 4 MIRECC, VA Pittsburgh Healthcare System, Pittsburgh (Chapman)
| | - Laura A Brady
- Department of Family Medicine, Jacobs School of Medicine and Biomedical Sciences, State University of New York at Buffalo, Buffalo (Vest, Wray, Brady); Center for Integrated Healthcare, U.S. Department of Veterans Affairs (VA) Western New York Healthcare System, Buffalo (Vest, Wray); Veterans Integrated Service Network (VISN) 4, Mental Illness, Research, Education and Clinical Center (MIRECC), Corporal Michael J. Crescenz VA Medical Center, Philadelphia (Thase, Oslin); Department of Psychiatry, Perelman School of Medicine, University of Pennsylvania, Philadelphia (Thase, Oslin); VISN 4 MIRECC, VA Pittsburgh Healthcare System, Pittsburgh (Chapman)
| | - Sara R Chapman
- Department of Family Medicine, Jacobs School of Medicine and Biomedical Sciences, State University of New York at Buffalo, Buffalo (Vest, Wray, Brady); Center for Integrated Healthcare, U.S. Department of Veterans Affairs (VA) Western New York Healthcare System, Buffalo (Vest, Wray); Veterans Integrated Service Network (VISN) 4, Mental Illness, Research, Education and Clinical Center (MIRECC), Corporal Michael J. Crescenz VA Medical Center, Philadelphia (Thase, Oslin); Department of Psychiatry, Perelman School of Medicine, University of Pennsylvania, Philadelphia (Thase, Oslin); VISN 4 MIRECC, VA Pittsburgh Healthcare System, Pittsburgh (Chapman)
| | - David W Oslin
- Department of Family Medicine, Jacobs School of Medicine and Biomedical Sciences, State University of New York at Buffalo, Buffalo (Vest, Wray, Brady); Center for Integrated Healthcare, U.S. Department of Veterans Affairs (VA) Western New York Healthcare System, Buffalo (Vest, Wray); Veterans Integrated Service Network (VISN) 4, Mental Illness, Research, Education and Clinical Center (MIRECC), Corporal Michael J. Crescenz VA Medical Center, Philadelphia (Thase, Oslin); Department of Psychiatry, Perelman School of Medicine, University of Pennsylvania, Philadelphia (Thase, Oslin); VISN 4 MIRECC, VA Pittsburgh Healthcare System, Pittsburgh (Chapman)
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2
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Gene-drug pairings for antidepressants and antipsychotics: level of evidence and clinical application. Mol Psychiatry 2022; 27:593-605. [PMID: 34754108 DOI: 10.1038/s41380-021-01340-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Revised: 09/23/2021] [Accepted: 10/01/2021] [Indexed: 11/09/2022]
Abstract
Substantial inter-individual discrepancies exist in both therapeutic effectiveness and adverse effects of antidepressant and antipsychotic medications, which can, in part, be explained by genetic variation. Here, we searched the Pharmacogenomics Knowledge Base for gene-antidepressant and gene-antipsychotic pairs with the highest level of evidence. We then extracted and compared the associated prescribing recommendations for these pairs developed by the Clinical Pharmacogenomics Implementation Consortium, the Dutch Pharmacogenetics Working Group or approved product labels in the US, Canada, Europe, and Asia. Finally, we highlight key economical, educational, regulatory, and ethical issues that, if not appropriately considered, can hinder the implementation of these recommendations in clinical practice. Our review indicates that evidence-based guidelines are available to assist with the implementation of pharmacogenetic-guided antidepressant and antipsychotic prescribing, although the maximum impact of these guidelines on patient care will not be realized until key barriers are minimized or eliminated.
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3
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Clinical implementation of drug metabolizing gene-based therapeutic interventions worldwide. Hum Genet 2021; 141:1137-1157. [PMID: 34599365 DOI: 10.1007/s00439-021-02369-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Accepted: 09/09/2021] [Indexed: 02/05/2023]
Abstract
Over the last few years, the field of pharmacogenomics has gained considerable momentum. The advances of new genomics and bioinformatics technologies propelled pharmacogenomics towards its implementation in the clinical setting. Since 2007, and especially the last-5 years, many studies have focused on the clinical implementation of pharmacogenomics while identifying obstacles and proposed strategies and approaches for overcoming them in the real world of primary care as well as outpatients and inpatients clinics. Here, we outline the recent pharmacogenomics clinical implementation projects and provide details of the study designs, including the most predominant and innovative, as well as clinical studies worldwide that focus on outpatients and inpatient clinics, and primary care. According to these studies, pharmacogenomics holds promise for improving patients' health in terms of efficacy and toxicity, as well as in their overall quality of life, while simultaneously can contribute to the minimization of healthcare expenditure.
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4
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Subasri M, Barrett D, Sibalija J, Bitacola L, Kim RB. Pharmacogenomic-based personalized medicine: Multistakeholder perspectives on implementational drivers and barriers in the Canadian healthcare system. Clin Transl Sci 2021; 14:2231-2241. [PMID: 34080317 PMCID: PMC8604218 DOI: 10.1111/cts.13083] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Revised: 04/19/2021] [Accepted: 05/02/2021] [Indexed: 01/04/2023] Open
Abstract
Pharmacogenomics (PGx)-based personalized medicine (PM) is increasingly utilized to guide treatment decisions for many drug-disease combinations. Notably, London Health Sciences Centre (LHSC) has pioneered a PGx program that has become a staple for London-based specialists. Although implementational studies have been conducted in other jurisdictions, the Canadian healthcare system is understudied. Herein, the multistakeholder perspectives on implementational drivers and barriers are elucidated. Using a mixed-method qualitative model, key stakeholders, and patients from LHSC's PGx-based PM clinic were interviewed and surveyed, respectively. Interview transcripts were thematically analyzed in a stepwise process of customer profiling, value mapping, and business model canvasing. Value for LHSC located specialist users of PGx was driven by the quick turnaround time, independence of the PGx clinic, and the quality of information. Engagement of external specialists was only limited by access and awareness, whereas other healthcare nonusers were limited by education and applicability. The major determinant of successful adoption at novel sites were institutional champions. Patients valued and approved of the service, expressed a general willingness to pay, but often traveled far to receive genotyping. This paper discusses the critical pillars of education, awareness, advocacy, and efficiency required to address implementation barriers to healthcare service innovation in Canada. Further adoption of PGx practices into Canadian hospitals is an important factor for advancing system-level changes in care delivery, patient experiences, and outcomes. The findings in this paper can help inform efforts to advance clinical PGx practices, but also the potential adoption and implementation of other innovative healthcare service solutions.
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Affiliation(s)
- Mathushan Subasri
- Ivey Business School, University of Western Ontario, London, Ontario, Canada.,London Health Sciences Centre, London, Ontario, Canada
| | - David Barrett
- Ivey Business School, University of Western Ontario, London, Ontario, Canada
| | - Jovana Sibalija
- Ivey Business School, University of Western Ontario, London, Ontario, Canada.,Faculty of Social Science, University of Western Ontario, London, Ontario, Canada
| | | | - Richard B Kim
- Ivey Business School, University of Western Ontario, London, Ontario, Canada.,London Health Sciences Centre, London, Ontario, Canada
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5
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Vest BM, Wray LO, Brady LA, Thase ME, Beehler GP, Chapman SR, Hull LE, Oslin DW. Primary care and mental health providers' perceptions of implementation of pharmacogenetics testing for depression prescribing. BMC Psychiatry 2020; 20:518. [PMID: 33115428 PMCID: PMC7594429 DOI: 10.1186/s12888-020-02919-z] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Accepted: 10/15/2020] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND Pharmacogenetic testing (PGx) has the potential to improve the quality of psychiatric prescribing by considering patients' genetic profile. However, there is limited scientific evidence supporting its efficacy or guiding its implementation. The Precision Medicine in Mental Health (PRIME) Care study is a pragmatic randomized controlled trial evaluating the effectiveness of a specific commercially-available pharmacogenetic (PGx) test to inform antidepressant prescribing at 22 sites across the U.S. Simultaneous implementation science methods using the Consolidated Framework for Implementation Research (CFIR) are integrated throughout the trial to identify contextual factors likely to be important in future implementation of PGx. The goal of this study was to understand providers' perceptions of PGx for antidepressant prescribing and implications for future implementation. METHODS Qualitative focus groups (n = 10) were conducted at the beginning of the trial with Primary Care and Mental Health providers (n = 31) from six PRIME Care sites. Focus groups were audio-recorded and transcribed and data were analyzed using rapid analytic procedures organized by CFIR domains. RESULTS Analysis revealed themes in the CFIR Intervention Characteristics domain constructs of Evidence, Relative Advantage, Adaptability, Trialability, Complexity, and Design that are important for understanding providers' perceptions of PGx testing. Results indicate: 1) providers had limited experience and knowledge of PGx testing and its evidence base, particularly for psychiatric medications; 2) providers were hopeful that PGx could increase their precision in depression prescribing and improve patient engagement, but were uncertain about how results would influence treatment; 3) providers were concerned about potential misinterpretation of PGx results and how to incorporate testing into their workflow; 4) primary care providers were less familiar and comfortable with application of PGx testing to antidepressant prescribing than psychiatric providers. CONCLUSIONS Provider perceptions may serve as facilitators or barriers to implementation of PGx for psychiatric prescribing. Incorporating implementation science into the conduct of the RCT adds value by uncovering factors to be addressed in preparing for future implementation, should the practice prove effective. TRIAL REGISTRATION ClinicalTrials.gov ID: NCT03170362 ; Registered 31 May 2017.
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Affiliation(s)
- Bonnie M. Vest
- grid.273335.30000 0004 1936 9887Department of Family Medicine, State University of New York- University at Buffalo Jacobs School of Medicine and Biomedical Sciences, Buffalo, NY USA ,grid.416805.e0000 0004 0420 1352VA Center for Integrated Healthcare, VA Western New York Healthcare System, Buffalo, NY USA
| | - Laura O. Wray
- grid.273335.30000 0004 1936 9887Department of Family Medicine, State University of New York- University at Buffalo Jacobs School of Medicine and Biomedical Sciences, Buffalo, NY USA ,grid.416805.e0000 0004 0420 1352VA Center for Integrated Healthcare, VA Western New York Healthcare System, Buffalo, NY USA
| | - Laura A. Brady
- grid.273335.30000 0004 1936 9887Department of Family Medicine, State University of New York- University at Buffalo Jacobs School of Medicine and Biomedical Sciences, Buffalo, NY USA ,grid.416805.e0000 0004 0420 1352VA Center for Integrated Healthcare, VA Western New York Healthcare System, Buffalo, NY USA
| | - Michael E. Thase
- grid.410355.60000 0004 0420 350XVISN 4 Mental Illness, Research, Education and Clinical Center, Corporal Michael J. Crescenz VA Medical Center, Philadelphia, PA USA ,grid.25879.310000 0004 1936 8972Department of Psychiatry, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA USA
| | - Gregory P. Beehler
- grid.416805.e0000 0004 0420 1352VA Center for Integrated Healthcare, VA Western New York Healthcare System, Buffalo, NY USA ,grid.273335.30000 0004 1936 9887State University of New York- University at Buffalo, School of Public Health and Health Professions, Buffalo, NY USA
| | - Sara R. Chapman
- grid.413935.90000 0004 0420 3665VISN 4 Mental Illness, Research, Education and Clinical Center, VA Pittsburgh Healthcare System, Pittsburgh, PA USA
| | - Leland E. Hull
- grid.32224.350000 0004 0386 9924Division of General Internal Medicine, Massachusetts General Hospital, Boston, MA USA ,grid.38142.3c000000041936754XHarvard Medical School, Boston, MA USA
| | - David W. Oslin
- grid.410355.60000 0004 0420 350XVISN 4 Mental Illness, Research, Education and Clinical Center, Corporal Michael J. Crescenz VA Medical Center, Philadelphia, PA USA ,grid.25879.310000 0004 1936 8972Department of Psychiatry, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA USA
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Miscio G, Paroni G, Bisceglia P, Gravina C, Urbano M, Lozupone M, Piccininni C, Prisciandaro M, Ciavarella G, Daniele A, Bellomo A, Panza F, Di Mauro L, Greco A, Seripa D. Pharmacogenetics in the clinical analysis laboratory: clinical practice, research, and drug development pipeline. Expert Opin Drug Metab Toxicol 2019; 15:751-765. [PMID: 31512953 DOI: 10.1080/17425255.2019.1658742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Introduction: Over the last decade, the spread of next-generation sequencing technology along with the rising cost in health management in national health systems has led to widespread use/abuse of pharmacogenetic tests (PGx) in the practice of many clinical disciplines. However, given their clinical significance, it is important to standardize these tests for having an interaction with the clinical analysis laboratory (CAL), in which a PGx service can meet these requirements. Areas covered: A diagnostic test must meet the criteria of reproducibility and validity for its utility in the clinical routine. This present review mainly describes the utility of introducing PGx tests in the CAL routine to produce correct results useful for setting up personalized drug treatments. Expert opinion: With a PGx service, CALs can provide the right tool to help clinicians to make better choices about different categories of drugs and their dosage and to manage the economic impact both in hospital-based settings and in National Health Services, throughout electronic health records. Advances in PGx also allow a new approach for pharmaceutical companies in order to improve drug development and clinical trials. As a result, CALs can achieve a powerful source of epidemiological, clinical, and research findings from PGx tests.
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Affiliation(s)
- Giuseppe Miscio
- Clinical Laboratory Analysis and Transfusional Medicine, Laboratory and Transfusional Diagnostics, Fondazione IRCCS Casa Sollievo della Sofferenza , Foggia , Italy
| | - Giulia Paroni
- Research Laboratory, Complex Structure of Geriatrics, Department of Medical Sciences, Fondazione IRCCS Casa Sollievo della Sofferenza , Foggia , Italy
| | - Paola Bisceglia
- Research Laboratory, Complex Structure of Geriatrics, Department of Medical Sciences, Fondazione IRCCS Casa Sollievo della Sofferenza , Foggia , Italy
| | - Carolina Gravina
- Research Laboratory, Complex Structure of Geriatrics, Department of Medical Sciences, Fondazione IRCCS Casa Sollievo della Sofferenza , Foggia , Italy
| | - Maria Urbano
- Research Laboratory, Complex Structure of Geriatrics, Department of Medical Sciences, Fondazione IRCCS Casa Sollievo della Sofferenza , Foggia , Italy
| | - Madia Lozupone
- Neurodegenerative Disease Unit, Department of Basic Medical Sciences, Neuroscience, and Sense Organs, University of Bari Aldo Moro , Bari , Italy
| | - Carla Piccininni
- Psychiatric Unit, Department of Clinical and Experimental Medicine, University of Foggia , Foggia , Italy
| | - Michele Prisciandaro
- Clinical Laboratory Analysis and Transfusional Medicine, Laboratory and Transfusional Diagnostics, Fondazione IRCCS Casa Sollievo della Sofferenza , Foggia , Italy
| | - Grazia Ciavarella
- Clinical Laboratory Analysis and Transfusional Medicine, Laboratory and Transfusional Diagnostics, Fondazione IRCCS Casa Sollievo della Sofferenza , Foggia , Italy
| | - Antonio Daniele
- Institute of Neurology, Catholic University of Sacred Heart , Rome , Italy.,Institute of Neurology, Fondazione Policlinico Universitario A. Gemelli IRCCS , Rome , Italy
| | - Antonello Bellomo
- Psychiatric Unit, Department of Clinical and Experimental Medicine, University of Foggia , Foggia , Italy
| | - Francesco Panza
- Research Laboratory, Complex Structure of Geriatrics, Department of Medical Sciences, Fondazione IRCCS Casa Sollievo della Sofferenza , Foggia , Italy.,Neurodegenerative Disease Unit, Department of Basic Medical Sciences, Neuroscience, and Sense Organs, University of Bari Aldo Moro , Bari , Italy
| | - Lazzaro Di Mauro
- Clinical Laboratory Analysis and Transfusional Medicine, Laboratory and Transfusional Diagnostics, Fondazione IRCCS Casa Sollievo della Sofferenza , Foggia , Italy
| | - Antonio Greco
- Research Laboratory, Complex Structure of Geriatrics, Department of Medical Sciences, Fondazione IRCCS Casa Sollievo della Sofferenza , Foggia , Italy
| | - Davide Seripa
- Research Laboratory, Complex Structure of Geriatrics, Department of Medical Sciences, Fondazione IRCCS Casa Sollievo della Sofferenza , Foggia , Italy
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Arranz MJ, Gonzalez-Rodriguez A, Perez-Blanco J, Penadés R, Gutierrez B, Ibañez L, Arias B, Brunet M, Cervilla J, Salazar J, Catalan R. A pharmacogenetic intervention for the improvement of the safety profile of antipsychotic treatments. Transl Psychiatry 2019; 9:177. [PMID: 31346157 PMCID: PMC6658489 DOI: 10.1038/s41398-019-0511-9] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 05/09/2019] [Accepted: 05/31/2019] [Indexed: 12/24/2022] Open
Abstract
Antipsychotic drugs fail to achieve adequate response in 30-50% of treated patients and about 50% of them develop severe and lasting side effects. Treatment failure results in poorer prognosis with devastating repercussions for the patients, carers and broader society. Our study evaluated the clinical benefits of a pharmacogenetic intervention for the personalisation of antipsychotic treatment. Pharmacogenetic information in key CYP polymorphisms was used to adjust clinical doses in a group of patients who started or switched treatment with antipsychotic drugs (PharmG+, N = 123), and their results were compared with those of a group of patients treated following existing clinical guides (PharmG-, N = 167). There was no evidence of significant differences in side effects between the two arms. Although patients who had their antipsychotic dose adjusted according to CYPs polymorphisms (PharmG+) had a bigger reduction in side effects than those treated as usual (PharmG-), the difference was not statistically significant (p > 0.05 for all comparisons). However, PharmG+ patients treated with CYP2D6 substrates that were carriers of CYP2D6 UMs or PMs variants showed a significantly higher improvement in global, psychic and other UKU side effects than PharmG- patients (p = 0.02, p = 0.05 and p = 0.01, respectively). PharmG+ clozapine treated patients with CYP1A2 or CYP2C19 UM and PMs variants also showed higher reductions in UKU scores than PharmG- clozapine patients in general. However, those differences were not statistically significant. Pharmacogenetic interventions may improve the safety of antipsychotic treatments by reducing associated side effects. This intervention may be particularly useful when considering treatment with antipsychotics with one major metabolic pathway, and therefore more susceptible to be affected by functional variants of CYP enzymes.
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Affiliation(s)
- Maria J. Arranz
- 0000 0004 1794 4956grid.414875.bFundació Docència i Recerca Mútua Terrassa, Terrassa, Spain ,Centro de Investigación en Red de Salud Mental, CIBERSAM, Madrid, Spain
| | - Alex Gonzalez-Rodriguez
- 0000 0000 9238 6887grid.428313.fDepartment of Mental Health, Parc Taulí University Hospital Sabadell, Barcelona, Spain
| | - Josefina Perez-Blanco
- Centro de Investigación en Red de Salud Mental, CIBERSAM, Madrid, Spain ,0000 0004 1768 8905grid.413396.aDepartment of Psychiatry, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
| | - Rafael Penadés
- Centro de Investigación en Red de Salud Mental, CIBERSAM, Madrid, Spain ,Barcelona Clinic Schizophrenia Unit (BCSU), Neurosciences Institute, Hospital Clinic of Barcelona, University of Barcelona, IDIBAPS, Barcelona, Spain
| | - Blanca Gutierrez
- 0000000121678994grid.4489.1Department of Psychiatry, University of Granada, Granada, Spain
| | - Laura Ibañez
- 0000 0004 1794 4956grid.414875.bFundació Docència i Recerca Mútua Terrassa, Terrassa, Spain
| | - Barbara Arias
- Centro de Investigación en Red de Salud Mental, CIBERSAM, Madrid, Spain ,0000 0004 1937 0247grid.5841.8Department of Biologia Evolutiva, Ecologia i Ciències Ambientals, Facultat de Biologia, Institut de Biomedicina de la Universitat de Barcelona (IBUB), Barcelona, Spain
| | - Mercè Brunet
- 0000 0000 9635 9413grid.410458.cPharmacology and Toxicology Unit, Department of Biochemistry and Molecular Genetics, Hospital Clinic, Barcelona, Spain
| | - Jorge Cervilla
- 0000000121678994grid.4489.1Department of Psychiatry, University of Granada, Granada, Spain
| | - Juliana Salazar
- 0000 0004 1768 8905grid.413396.aGenetics Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
| | - Rosa Catalan
- Centro de Investigación en Red de Salud Mental, CIBERSAM, Madrid, Spain. .,Barcelona Clinic Schizophrenia Unit (BCSU), Neurosciences Institute, Hospital Clinic of Barcelona, University of Barcelona, IDIBAPS, Barcelona, Spain.
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8
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Abstract
Pharmacogenomic testing in psychiatry is becoming an established clinical procedure. Several vendors provide clinical interpretation of combinatorial pharmacogenomic testing of gene variants that have documented predictive implications regarding either pharmacologic response or adverse effects in depression and other psychiatric conditions. Such gene profiles have demonstrated improvements in outcome in depression, and reduction of cost of care of patients with inadequate clinical response. Additionally, several new gene variants are being studied to predict specific response in individuals. Many of these genes have demonstrated a role in the pathophysiology of depression or specific depressive symptoms. This article reviews the current state-of-the-art application of psychiatric pharmacogenomics.
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9
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Bousman CA, Forbes M, Jayaram M, Eyre H, Reynolds CF, Berk M, Hopwood M, Ng C. Antidepressant prescribing in the precision medicine era: a prescriber's primer on pharmacogenetic tools. BMC Psychiatry 2017; 17:60. [PMID: 28178974 PMCID: PMC5299682 DOI: 10.1186/s12888-017-1230-5] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2016] [Accepted: 02/04/2017] [Indexed: 12/25/2022] Open
Abstract
About half of people who take antidepressants do not respond and many experience adverse effects. These detrimental outcomes are in part a result of the impact of an individual's genetic profile on pharmacokinetics and pharmcodynamics. If known and made available to clinicians, this could improve decision-making and antidepressant therapy outcomes. This has spurred the development of numerous pharmacogenetic-based decision support tools. In this article, we provide an overview of pharmacogenetic decision support tools, with particular focus on tools relevant to antidepressants. We briefly describe the evolution and current state of antidepressant pharmacogenetic decision support tools in clinical practice, followed by the evidence-base for their use. Finally, we present a series of considerations for clinicians contemplating use of these tools and discuss the future of antidepressant pharmacogenetic decision support tools.
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Affiliation(s)
- Chad A Bousman
- Department of Psychiatry, Melbourne Neuropsychiatry Centre, University of Melbourne, 161 Barry Street, Level 3, Parkville, VIC, 3053, Australia.
- Department of General Practice, The University of Melbourne, Parkville, VIC, Australia.
- Centre for Human Psychopharmacology, Swinburne University of Technology, Hawthorne, VIC, Australia.
- Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Parkville, VIC, Australia.
| | - Malcolm Forbes
- Department of Psychiatry, Melbourne Neuropsychiatry Centre, University of Melbourne, 161 Barry Street, Level 3, Parkville, VIC, 3053, Australia
| | - Mahesh Jayaram
- Department of Psychiatry, Melbourne Neuropsychiatry Centre, University of Melbourne, 161 Barry Street, Level 3, Parkville, VIC, 3053, Australia
| | - Harris Eyre
- Department of Psychiatry, Melbourne Neuropsychiatry Centre, University of Melbourne, 161 Barry Street, Level 3, Parkville, VIC, 3053, Australia
- Deakin University, IMPACT Strategic Research Centre, School of Medicine, Geelong, Australia
- Discipline of Psychiatry, The University of Adelaide, Adelaide, South Australia, Australia
| | | | - Michael Berk
- Department of Psychiatry, Melbourne Neuropsychiatry Centre, University of Melbourne, 161 Barry Street, Level 3, Parkville, VIC, 3053, Australia
- Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Parkville, VIC, Australia
- Deakin University, IMPACT Strategic Research Centre, School of Medicine, Geelong, Australia
| | - Malcolm Hopwood
- Department of Psychiatry, Melbourne Neuropsychiatry Centre, University of Melbourne, 161 Barry Street, Level 3, Parkville, VIC, 3053, Australia
| | - Chee Ng
- Department of Psychiatry, Melbourne Neuropsychiatry Centre, University of Melbourne, 161 Barry Street, Level 3, Parkville, VIC, 3053, Australia
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10
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Haga SB, Mills R, Moaddeb J, Allen Lapointe N, Cho A, Ginsburg GS. Patient experiences with pharmacogenetic testing in a primary care setting. Pharmacogenomics 2016; 17:1629-1636. [PMID: 27648637 DOI: 10.2217/pgs-2016-0077] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
AIM To investigate patient experiences with pharmacogenetic (PGx) testing. METHODS Patients were offered PGx testing through a study on pharmacist-assisted delivery of PGx testing and invited to complete pre- and post-testing surveys about their experience. RESULTS Of 63 patients tested, 17 completed the baseline survey (27%). Interest in testing was mostly impacted by desire to inform selection of best treatment (n = 13). Seven of 12 patients that completed the follow-up survey indicated that their provider discussed the test result with them. Five patients understood their test result very or somewhat well. All would be likely to have PGx testing again. CONCLUSION Patients perceived PGx testing to be useful, though more effort may be needed to improve patient-provider communication of test results.
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Affiliation(s)
- Susanne B Haga
- Center for Applied Genomics & Precision Medicine, Duke University School of Medicine, 304 Research Drive, Durham, NC 27708, USA
| | - Rachel Mills
- Center for Applied Genomics & Precision Medicine, Duke University School of Medicine, 304 Research Drive, Durham, NC 27708, USA
| | - Jivan Moaddeb
- Center for Applied Genomics & Precision Medicine, Duke University School of Medicine, 304 Research Drive, Durham, NC 27708, USA
| | | | - Alex Cho
- Center for Applied Genomics & Precision Medicine, Duke University School of Medicine, 304 Research Drive, Durham, NC 27708, USA
| | - Geoffrey S Ginsburg
- Center for Applied Genomics & Precision Medicine, Duke University School of Medicine, 304 Research Drive, Durham, NC 27708, USA
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Pouget JG, Shams TA, Tiwari AK, Müller DJ. Pharmacogenetics and outcome with antipsychotic drugs. DIALOGUES IN CLINICAL NEUROSCIENCE 2015. [PMID: 25733959 PMCID: PMC4336924 DOI: 10.31887/dcns.2014.16.4/jpouget] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Antipsychotic medications are the gold-standard treatment for schizophrenia, and are often prescribed for other mental conditions. However, the efficacy and side-effect profiles of these drugs are heterogeneous, with large interindividual variability. As a result, treatment selection remains a largely trial-and-error process, with many failed treatment regimens endured before finding a tolerable balance between symptom management and side effects. Much of the interindividual variability in response and side effects is due to genetic factors (heritability, h2~ 0.60-0.80). Pharmacogenetics is an emerging field that holds the potential to facilitate the selection of the best medication for a particular patient, based on his or her genetic information. In this review we discuss the most promising genetic markers of antipsychotic treatment outcomes, and present current translational research efforts that aim to bring these pharmacogenetic findings to the clinic in the near future.
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Affiliation(s)
- Jennie G Pouget
- Pharmacogenetics Research Clinic, Campbell Family Research Institute, Centre for Addiction and Mental Health, Toronto, Ontario, Canada ; Institute of Medical Sciences, University of Toronto, Toronto, Ontario, Canada
| | - Tahireh A Shams
- Pharmacogenetics Research Clinic, Campbell Family Research Institute, Centre for Addiction and Mental Health, Toronto, Ontario, Canada; Department of Science, Ryerson University,Toronto, Ontario, Canada
| | - Arun K Tiwari
- Pharmacogenetics Research Clinic, Campbell Family Research Institute, Centre for Addiction and Mental Health, Toronto, Ontario, Canada
| | - Daniel J Müller
- Pharmacogenetics Research Clinic, Campbell Family Research Institute, Centre for Addiction and Mental Health, Toronto, Ontario, Canada; Department of Psychiatry University of Toronto, Toronto, Ontario, Canada
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12
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Walden LM, Brandl EJ, Changasi A, Sturgess JE, Soibel A, Notario JFD, Cheema S, Braganza N, Marshe VS, Freeman N, Tiwari AK, Kennedy JL, Müller DJ. Physicians' opinions following pharmacogenetic testing for psychotropic medication. Psychiatry Res 2015; 229:913-8. [PMID: 26298505 DOI: 10.1016/j.psychres.2015.07.032] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/18/2015] [Revised: 06/18/2015] [Accepted: 07/12/2015] [Indexed: 11/25/2022]
Abstract
Pharmacogenetics seeks to improve patient drug response and decrease side effects by personalizing prescriptions using genetic information. Since 2012, by one estimate, the number of patients who have had pharmacogenetic testing has doubled and this number is expected to double again by 2015. Given the increasing evidence for genetic influences on treatment response, we deemed it important to study physicians' opinions of pharmacogenetic testing. Surveys were completed by 168 Canadian physicians who had ordered at least one pharmacogenetic test (in particular for CYP2D6 or CYP2C19) for the prescription of psychiatric medication. Our results indicated that 80% of respondents believe genetic testing would become common standard in psychiatric drug treatment and 76% of respondents reported satisfactory or higher than satisfactory understanding of the pharmacogenetic report provided. Significantly more male physicians believed they had a higher understanding of the pharmacogenetic report compared to female physicians. To our knowledge, this is the only study that has assessed physicians' opinions of pharmacogenetic testing for psychotropic medication after they had received a pharmacogenetic report. Our results demonstrate a positive opinion of physicians on pharmacogenetics and indicate great potential for future clinical application.
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Affiliation(s)
- Lucas M Walden
- Pharmacogenetic Research Clinic, Campbell Family Mental Health Research Institute, Center for Addiction and Mental Health, Toronto, Ontario, Canada
| | - Eva J Brandl
- Pharmacogenetic Research Clinic, Campbell Family Mental Health Research Institute, Center for Addiction and Mental Health, Toronto, Ontario, Canada; Department of Psychiatry and Psychotherapy, Campus Mitte, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Amtul Changasi
- Pharmacogenetic Research Clinic, Campbell Family Mental Health Research Institute, Center for Addiction and Mental Health, Toronto, Ontario, Canada; University of Toronto, Scarborough, Ontario, Canada
| | - Jessica E Sturgess
- Pharmacogenetic Research Clinic, Campbell Family Mental Health Research Institute, Center for Addiction and Mental Health, Toronto, Ontario, Canada; Department of Internal Medicine, Rush University Medical Center, Chicago, IL, USA
| | - Alexander Soibel
- Pharmacogenetic Research Clinic, Campbell Family Mental Health Research Institute, Center for Addiction and Mental Health, Toronto, Ontario, Canada
| | - Janna Fe D Notario
- Pharmacogenetic Research Clinic, Campbell Family Mental Health Research Institute, Center for Addiction and Mental Health, Toronto, Ontario, Canada
| | - Sheraz Cheema
- Pharmacogenetic Research Clinic, Campbell Family Mental Health Research Institute, Center for Addiction and Mental Health, Toronto, Ontario, Canada
| | - Nicole Braganza
- Pharmacogenetic Research Clinic, Campbell Family Mental Health Research Institute, Center for Addiction and Mental Health, Toronto, Ontario, Canada
| | - Victoria S Marshe
- Pharmacogenetic Research Clinic, Campbell Family Mental Health Research Institute, Center for Addiction and Mental Health, Toronto, Ontario, Canada; Institute of Medical Science, Faculty of Medicine, University of Toronto, Toronto, Canada
| | - Natalie Freeman
- Pharmacogenetic Research Clinic, Campbell Family Mental Health Research Institute, Center for Addiction and Mental Health, Toronto, Ontario, Canada
| | - Arun K Tiwari
- Pharmacogenetic Research Clinic, Campbell Family Mental Health Research Institute, Center for Addiction and Mental Health, Toronto, Ontario, Canada
| | - James L Kennedy
- Pharmacogenetic Research Clinic, Campbell Family Mental Health Research Institute, Center for Addiction and Mental Health, Toronto, Ontario, Canada; Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada.
| | - Daniel J Müller
- Pharmacogenetic Research Clinic, Campbell Family Mental Health Research Institute, Center for Addiction and Mental Health, Toronto, Ontario, Canada; Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada.
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13
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Thompson C, Steven P Hamilton, Catriona Hippman. Psychiatrist attitudes towards pharmacogenetic testing, direct-to-consumer genetic testing, and integrating genetic counseling into psychiatric patient care. Psychiatry Res 2015; 226:68-72. [PMID: 25618469 DOI: 10.1016/j.psychres.2014.11.044] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/02/2014] [Revised: 11/02/2014] [Accepted: 11/22/2014] [Indexed: 11/29/2022]
Abstract
Psychiatric treatment has not historically included genetic counseling or genetic testing. It has been shown that psychiatric patients and their families benefit from genetic counseling and pharmacogenetic testing for pharmacological treatment. To date, no study has investigated psychiatrists' attitudes towards incorporating pharmacogenetic testing and genetic counseling into patient treatment. This study employed a five item survey to solicit the opinions of psychiatrists on the benefit of pharmacogenetic data, direct to consumer (DTC) genetic testing, and genetic counseling. A total of 113 psychiatrists responded to the surveys. The vast majority (94.6%) indicated that genetic data would be useful in making pharmaceutical decisions, and 86% felt that pharmacogenetic testing would become standard of care. Attitudes were split towards the benefit of direct to consumer genetic testing; 55.8% of respondents would refer a patient for DTC genetic testing that might help with treatment decisions. The majority (72.6%) believed that it would be beneficial to include genetic counselors in psychiatric patient care. The results of our study suggest there is potential for collaboration between psychiatrists and genetic counselors to enhance patient care.
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Affiliation(s)
- Carmela Thompson
- Department of Psychiatry, University of California, San Francisco, San Francisco, CA, USA.
| | - Steven P Hamilton
- Department of Psychiatry, Kaiser Permanente Medical Center, San Francisco, CA, USA
| | - Catriona Hippman
- Women's Health Research Institute, BC Women's Hospital and Health Centre; Department of Psychiatry, University of British Columbia, Vancouver, BC, Canada
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The potential utility of pharmacogenetic testing in psychiatry. PSYCHIATRY JOURNAL 2014; 2014:730956. [PMID: 25587529 PMCID: PMC4281386 DOI: 10.1155/2014/730956] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 09/29/2014] [Accepted: 11/23/2014] [Indexed: 12/14/2022]
Abstract
Over the last decade, pharmacogenetics has become increasingly significant to clinical practice. Psychiatric patients, in particular, may benefit from pharmacogenetic testing as many of the psychotropic medications prescribed in practice lead to varied response rates and a wide range of side effects. The use of pharmacogenetic testing can help tailor psychotropic treatment and inform personalized treatment plans with the highest likelihood of success. Recently, many studies have been published demonstrating improved patient outcomes and decreased healthcare costs for psychiatric patients who utilize genetic testing. This review will describe evidence supporting the clinical utility of genetic testing in psychiatry, present several case studies to demonstrate use in everyday practice, and explore current patient and clinician opinions of genetic testing.
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