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Jeiziner C, Meyer Zu Schwabedissen HE, Hersberger KE, Allemann SS. Pharmacogenetic testing and counselling in the community pharmacy: mixed-methods study of a new pharmacist-led service. Int J Clin Pharm 2023; 45:1378-1386. [PMID: 37338707 PMCID: PMC10682055 DOI: 10.1007/s11096-023-01596-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Accepted: 04/23/2023] [Indexed: 06/21/2023]
Abstract
BACKGROUND Pharmacogenetic (PGx) testing and counselling (short: PGx service) in the community pharmacy is not routinely practiced. We propose a comprehensive pharmacist-led service where PGx information is integrated into medication reviews. AIM To evaluate the pharmacist-led service comprising PGx testing and counselling (PGx service) from the perspective of patients. METHOD For this mixed-methods study, we conducted two follow-up interviews F1 and F2 with patients recruited for the PGx service in a community pharmacy after 1st of January 2020. The semi-structured interviews were held by phone call and covered understanding of PGx, the implementation of recommendations, handling of PGx documents (list of concerned substances and PGx recommendation), gain in medication knowledge, and willingness to pay for the PGx service. RESULTS We interviewed 25 patients in F1 and 42 patients in F2. Patients were generally able to understand and use results of the PGx service. At least one PGx recommendation was implemented for 69% of the patients. Handling of PGx documents ranged from patients having forgotten about the PGx results to patients consulting the list for every medication-related decision; the latter often expecting negative effects. Finally, 62% of the patients were willing to pay for the PGx service. CONCLUSION For future PGx testing and counselling, HCPs should consider the patients' health literacy in a standardized way and use adequate communication skills to enhance the patient's understanding in PGx and to attenuate potential negative expectations.
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Affiliation(s)
- Chiara Jeiziner
- Pharmaceutical Care Research Group, Department of Pharmaceutical Sciences, University of Basel, Klingelbergstrasse 50, 4056, Basel, Switzerland
| | | | - Kurt E Hersberger
- Pharmaceutical Care Research Group, Department of Pharmaceutical Sciences, University of Basel, Klingelbergstrasse 50, 4056, Basel, Switzerland
| | - Samuel S Allemann
- Pharmaceutical Care Research Group, Department of Pharmaceutical Sciences, University of Basel, Klingelbergstrasse 50, 4056, Basel, Switzerland.
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Bollinger A, Jeiziner C, Meyer Zu Schwabedissen HE, Hersberger KE, Allemann SS, Stäuble CK. Severe systemic adverse reactions to ophthalmic timolol in a CYP2D6 homozygous *4 allele carrier: a case report. Pharmacogenomics 2023; 24:739-746. [PMID: 37712172 DOI: 10.2217/pgs-2023-0122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/16/2023] Open
Abstract
A woman with ocular hypertension suffered from severe bradycardia, hypotension and syncope attacks in temporal relation with ophthalmic timolol application. Topically applied timolol is nasally absorbed and has been shown to reach potentially relevant systemic concentrations. Timolol is mainly metabolized by CYP2D6, which exhibits interindividual metabolic capacity due to genetic variations. A reactive pharmacogenetic panel test identified the patient as a CYP2D6 homozygous *4 allele carrier, which has been associated with a poor metabolizer phenotype and lacking enzyme activity. Thus, the adverse drug reactions possibly resulted from increased systemic timolol exposure. This case report highlights that pharmacogenetic panel testing can contribute to safe and effective pharmacotherapy, even for topically applied drugs.
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Affiliation(s)
- Anna Bollinger
- Department of Pharmaceutical Sciences, University of Basel, 4056, Basel, Switzerland
| | - Chiara Jeiziner
- Department of Pharmaceutical Sciences, University of Basel, 4056, Basel, Switzerland
| | | | - Kurt E Hersberger
- Department of Pharmaceutical Sciences, University of Basel, 4056, Basel, Switzerland
| | - Samuel S Allemann
- Department of Pharmaceutical Sciences, University of Basel, 4056, Basel, Switzerland
| | - Céline K Stäuble
- Department of Pharmaceutical Sciences, University of Basel, 4056, Basel, Switzerland
- Institute of Hospital Pharmacy, Solothurner Spitäler AG, 4600, Olten, Switzerland
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Bollinger A, Stäuble CK, Jeiziner C, Wiss FM, Hersberger KE, Lampert ML, Meyer zu Schwabedissen HE, Allemann SS. Genotyping of Patients with Adverse Drug Reaction or Therapy Failure: Database Analysis of a Pharmacogenetics Case Series Study. Pharmgenomics Pers Med 2023; 16:693-706. [PMID: 37426898 PMCID: PMC10327911 DOI: 10.2147/pgpm.s415259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 06/19/2023] [Indexed: 07/11/2023] Open
Abstract
Purpose Pharmacogenetics (PGx) is an emerging aspect of personalized medicine with the potential to increase efficacy and safety of pharmacotherapy. However, PGx testing is still not routinely integrated into clinical practice. We conducted an observational case series study where PGx information from a commercially available panel test covering 30 genes was integrated into medication reviews. The aim of the study was to identify the drugs that are most frequently object of drug-gene-interactions (DGI) in the study population. Patients and Methods In out-patient and in-patient settings, we recruited 142 patients experiencing adverse drug reaction (ADR) and/or therapy failure (TF). Collected anonymized data from the individual patient was harmonized and transferred to a structured database. Results The majority of the patients had a main diagnosis of a mental or behavioral disorder (ICD-10: F, 61%), of musculoskeletal system and connective tissue diseases (ICD-10: M, 21%), and of the circulatory system (ICD-10: I, 11%). The number of prescribed medicines reached a median of 7 per person, resulting in a majority of patients with polypharmacy (≥5 prescribed medicines, 65%). In total, 559 suspected DGI were identified in 142 patients. After genetic testing, an association with at least one genetic variation was confirmed for 324 suspected DGI (58%) caused by 64 different drugs and 21 different genes in 141 patients. After 6 months, PGx-based medication adjustments were recorded for 62% of the study population, whereby differences were identified in subgroups. Conclusion The data analysis from this study provides valuable insights for the main focus of further research in the context of PGx. The results indicate that most of the selected patients in our sample represent suitable target groups for PGx panel testing in clinical practice, notably those taking drugs for mental or behavioral disorder, circulatory diseases, immunological diseases, pain-related diseases, and patients experiencing polypharmacy.
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Affiliation(s)
- Anna Bollinger
- Department of Pharmaceutical Sciences, University of Basel, Basel, Switzerland
| | - Céline K Stäuble
- Department of Pharmaceutical Sciences, University of Basel, Basel, Switzerland
- Institute of Hospital Pharmacy, Solothurner Spitäler AG, Olten, Switzerland
| | - Chiara Jeiziner
- Department of Pharmaceutical Sciences, University of Basel, Basel, Switzerland
| | - Florine M Wiss
- Department of Pharmaceutical Sciences, University of Basel, Basel, Switzerland
- Institute of Hospital Pharmacy, Solothurner Spitäler AG, Olten, Switzerland
| | - Kurt E Hersberger
- Department of Pharmaceutical Sciences, University of Basel, Basel, Switzerland
| | - Markus L Lampert
- Department of Pharmaceutical Sciences, University of Basel, Basel, Switzerland
- Institute of Hospital Pharmacy, Solothurner Spitäler AG, Olten, Switzerland
| | | | - Samuel S Allemann
- Department of Pharmaceutical Sciences, University of Basel, Basel, Switzerland
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Stäuble CK, Jeiziner C, Bollinger A, Wiss FM, Hatzinger M, Hersberger KE, Ihde T, Lampert ML, Mikoteit T, Meyer zu Schwabedissen HE, Allemann SS. A Guide to a Pharmacist-Led Pharmacogenetic Testing and Counselling Service in an Interprofessional Healthcare Setting. Pharmacy 2022; 10:pharmacy10040086. [PMID: 35893724 PMCID: PMC9326676 DOI: 10.3390/pharmacy10040086] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 07/14/2022] [Accepted: 07/15/2022] [Indexed: 02/04/2023] Open
Abstract
Genetic predisposition is one factor influencing interindividual drug response. Pharmacogenetic information can be used to guide the selection and dosing of certain drugs. However, the implementation of pharmacogenetics (PGx) in clinical practice remains challenging. Defining a formal structure, as well as concrete procedures and clearly defined responsibilities, may facilitate and increase the use of PGx in clinical practice. Over 140 patient cases from an observational study in Switzerland formed the basis for the design and refinement of a pharmacist-led pharmacogenetics testing and counselling service (PGx service) in an interprofessional setting. Herein, we defined a six-step approach, including: (1) patient referral; (2) pre-test-counselling; (3) PGx testing; (4) medication review; (5) counselling; (6) follow-up. The six-step approach supports the importance of an interprofessional collaboration and the role of pharmacists in PGx testing and counselling across healthcare settings.
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Affiliation(s)
- Céline K. Stäuble
- Pharmaceutical Care, Department of Pharmaceutical Sciences, University of Basel, 4056 Basel, Switzerland; (C.J.); (A.B.); (F.M.W.); (K.E.H.); (M.L.L.); (S.S.A.)
- Institute of Hospital Pharmacy, Solothurner Spitäler AG, 4600 Olten, Switzerland
- Biopharmacy, Department of Pharmaceutical Sciences, University of Basel, 4056 Basel, Switzerland;
- Correspondence:
| | - Chiara Jeiziner
- Pharmaceutical Care, Department of Pharmaceutical Sciences, University of Basel, 4056 Basel, Switzerland; (C.J.); (A.B.); (F.M.W.); (K.E.H.); (M.L.L.); (S.S.A.)
| | - Anna Bollinger
- Pharmaceutical Care, Department of Pharmaceutical Sciences, University of Basel, 4056 Basel, Switzerland; (C.J.); (A.B.); (F.M.W.); (K.E.H.); (M.L.L.); (S.S.A.)
| | - Florine M. Wiss
- Pharmaceutical Care, Department of Pharmaceutical Sciences, University of Basel, 4056 Basel, Switzerland; (C.J.); (A.B.); (F.M.W.); (K.E.H.); (M.L.L.); (S.S.A.)
- Institute of Hospital Pharmacy, Solothurner Spitäler AG, 4600 Olten, Switzerland
| | - Martin Hatzinger
- Psychiatric Services Solothurn, Solothurner Spitäler AG, Faculty of Medicine, University of Basel, 4503 Solothurn, Switzerland; (M.H.); (T.M.)
| | - Kurt E. Hersberger
- Pharmaceutical Care, Department of Pharmaceutical Sciences, University of Basel, 4056 Basel, Switzerland; (C.J.); (A.B.); (F.M.W.); (K.E.H.); (M.L.L.); (S.S.A.)
| | - Thomas Ihde
- Institute of Psychiatry, Spitäler Frutigen Meiringen Interlaken AG (fmiAG), 3800 Unterseen, Switzerland;
| | - Markus L. Lampert
- Pharmaceutical Care, Department of Pharmaceutical Sciences, University of Basel, 4056 Basel, Switzerland; (C.J.); (A.B.); (F.M.W.); (K.E.H.); (M.L.L.); (S.S.A.)
- Institute of Hospital Pharmacy, Solothurner Spitäler AG, 4600 Olten, Switzerland
| | - Thorsten Mikoteit
- Psychiatric Services Solothurn, Solothurner Spitäler AG, Faculty of Medicine, University of Basel, 4503 Solothurn, Switzerland; (M.H.); (T.M.)
| | | | - Samuel S. Allemann
- Pharmaceutical Care, Department of Pharmaceutical Sciences, University of Basel, 4056 Basel, Switzerland; (C.J.); (A.B.); (F.M.W.); (K.E.H.); (M.L.L.); (S.S.A.)
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Jeiziner C, Allemann SS, Hersberger KE, Meyer zu Schwabedissen HE. Is Pharmacogenetic Panel Testing Applicable to Low-Dose Methotrexate in Rheumatoid Arthritis? – A Case Report. Pharmgenomics Pers Med 2022; 15:465-475. [PMID: 35586477 PMCID: PMC9109898 DOI: 10.2147/pgpm.s354011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Accepted: 04/03/2022] [Indexed: 11/25/2022] Open
Abstract
Purpose Pharmacogenetic (PGx) panel testing could help to determine the heritable component of a rheumatoid arthritis (RA) patient’s susceptibility for therapy failure and/or adverse drug reactions (ADRs) from methotrexate (MTX). Considering the literature mentioning the potential applicability of PGx panel testing within MTX regimens, we discuss the case of a patient who was treated with MTX, suffered from ADRs, and obtained a reactive PGx panel testing. Genotyping We used a commercial PGx panel test involving the ABC-transporters P-glycoprotein (P-gp; gene: ABCB1), and breast cancer resistance protein (BCRP; gene: ABCG2), the solute carriers reduced folate carrier 1 (RFC1; gene: SLC19A1), and organic anion transporting polypeptide 1B1 (OATP1B1; gene: SLCO1B1), and the enzymes inosine triphosphatase (ITPA), and glutathione transferase P1 (GSTP1). In addition, we genotyped the patient for the enzymes 5-aminoimidazole-4-carboxamide ribonucleotide formyltransferase (AICAR)/inosine monophosphate (IMP) cyclohydrolase (gene name: ATIC), gamma-glutamyl hydrolase (gene name: GGH) and methylenetetrahydrofolate reductase (gene name: MTHFR). Results The PGx profile of the patient revealed genetic variants in SLC19A1, ABCB1, and MTHFR, which may explain the ADRs experienced during the treatment with MTX and a potentially lower efficacy of MTX. Based on our interpretation of the PGx profile, we recommended the patient to avoid MTX in the future. Conclusion The MTX pathway is complex, which makes the interpretation of genetic variants affecting metabolism challenging. A reactive PGx panel test was applicable to explain ADRs experienced during MTX treatment for a patient with RA. However, the clinical utility of PGx-guided MTX treatment in a primary care setting is still limited. In order to base a recommendation for MTX on PGx data, we need genome-wide association studies, large prospective multicenter studies and PGx studies, which analyze different multi-gene haplotypes and gene-drug-drug interactions for MTX.
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Affiliation(s)
- Chiara Jeiziner
- Pharmaceutical Care Research Group, Department Pharmaceutical Sciences, University of Basel, Basel, Switzerland
- Correspondence: Chiara Jeiziner, Pharmaceutical Care Research Group, Department Pharmaceutical Sciences, University of Basel, Klingelbergstrasse 50, Basel, 4056, Switzerland, Tel +41 61 207 61 80, Email
| | - Samuel S Allemann
- Pharmaceutical Care Research Group, Department Pharmaceutical Sciences, University of Basel, Basel, Switzerland
| | - Kurt E Hersberger
- Pharmaceutical Care Research Group, Department Pharmaceutical Sciences, University of Basel, Basel, Switzerland
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Stäuble CK, Jeiziner C, Hersberger KE, Meyer zu Schwabedissen HE, Lampert ML. Pharmacogenetics in Pharmaceutical Care-Piloting an Application-Oriented Blended Learning Concept. Pharmacy (Basel) 2021; 9:pharmacy9030152. [PMID: 34564559 PMCID: PMC8482083 DOI: 10.3390/pharmacy9030152] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Revised: 08/20/2021] [Accepted: 09/01/2021] [Indexed: 12/15/2022] Open
Abstract
To enable application-oriented training of Swiss pharmacists on pharmacogenetic (PGx) testing, an advanced, digital training program was conceptualized based on the Miller's Pyramid framework, using a blended learning approach. The PGx advanced training program included an asynchronous self-study online module, synchronous virtual classroom sessions with lectures and workshops, and a follow-up case study for in-depth applied learning including the analysis of the participants' PGx profile. The evaluation of the training program consisted of (a) an assessment of the participants' development of knowledge, competencies and attitudes towards PGx testing in the pharmacy setting; (b) a satisfaction survey including; (c) questions about their future plans for implementing a PGx service. Twenty-one pharmacists participated in this pilot program. The evaluation showed: (a) a significant improvement of their PGx knowledge (mean score in the knowledge test 75.3% before to 90.3% after training completion) and a significant increase of their self-perceived competencies in applying PGx counselling; (b) a high level of satisfaction with the training program content and the format (at least 79% expressed high/very high agreement with the statements in the questionnaire); (c) a mixed view on whether participants will implement PGx testing as a pharmacy service (indecisive 8; agreed/completely agreed to implement 7/1; disagreed 3 (n = 19)). We consider ongoing education as an important driver for the implementation of PGx in pharmacy practice.
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Affiliation(s)
- Céline K. Stäuble
- Biopharmacy, Department of Pharmaceutical Sciences, University of Basel, 4056 Basel, Switzerland;
- Pharmaceutical Care, Department of Pharmaceutical Sciences, University of Basel, 4001 Basel, Switzerland; (C.J.); (K.E.H.); (M.L.L.)
- Institute of Hospital Pharmacy, Solothurner Spitäler, 4600 Olten, Switzerland
- Correspondence:
| | - Chiara Jeiziner
- Pharmaceutical Care, Department of Pharmaceutical Sciences, University of Basel, 4001 Basel, Switzerland; (C.J.); (K.E.H.); (M.L.L.)
| | - Kurt E. Hersberger
- Pharmaceutical Care, Department of Pharmaceutical Sciences, University of Basel, 4001 Basel, Switzerland; (C.J.); (K.E.H.); (M.L.L.)
| | | | - Markus L. Lampert
- Pharmaceutical Care, Department of Pharmaceutical Sciences, University of Basel, 4001 Basel, Switzerland; (C.J.); (K.E.H.); (M.L.L.)
- Institute of Hospital Pharmacy, Solothurner Spitäler, 4600 Olten, Switzerland
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Jeiziner C, Wernli U, Suter K, Hersberger KE, Meyer zu Schwabedissen HE. HLA-associated adverse drug reactions - scoping review. Clin Transl Sci 2021; 14:1648-1658. [PMID: 34105877 PMCID: PMC8504845 DOI: 10.1111/cts.13062] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 04/14/2021] [Accepted: 04/16/2021] [Indexed: 01/18/2023] Open
Abstract
Alleles of the human leukocyte antigen (HLA) system have been associated with the occurrence of idiosyncratic adverse drug reactions (ADRs). Accordingly, it is assumed that pre-emptive testing for the presence of certain HLA alleles (HLA-typing) could prevent these ADRs in carriers. In order to perceive the current evidence for HLA-associated ADRs, we conducted a scoping review according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA). The literature search on PubMed and on Embase was carried out on the July 8 and 9, 2020, respectively. To be included in the scoping review, the studies had to investigate an association of any HLA-associated ADR with any small molecule approved and available on the Swiss market. We considered English and German primary literature published since 2002. A total of 149 studies were included, whereof most were retrospective, whereas one was a prospective randomized controlled trial. The majority of the studies (n = 33) described the association of HLA-B*15:02 with carbamazepine. It was not possible to directly compare the studies, as they were too heterogeneous in terms of the ADR definition, the HLA alleles, the number of participants, and the study types. Therefore, we summarized the results in a descriptive manner. Even if an interpretation of the outcomes remains open, the descriptive overview revealed the prevailing complexity and uncertainty in the field. For the future, consistent definitions on the different phenotypes need to be established and applied and the reporting of association studies should follow a harmonized structure.
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Affiliation(s)
- Chiara Jeiziner
- Pharmaceutical Care Research GroupDepartment of Pharmaceutical SciencesUniversity of BaselBaselSwitzerland
| | - Ursina Wernli
- Pharmaceutical Care Research GroupDepartment of Pharmaceutical SciencesUniversity of BaselBaselSwitzerland
| | - Katja Suter
- European Center of Pharmaceutical MedicineFaculty of MedicineUniversity of BaselBaselSwitzerland
| | - Kurt E. Hersberger
- Pharmaceutical Care Research GroupDepartment of Pharmaceutical SciencesUniversity of BaselBaselSwitzerland
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Jeiziner C, Stäuble CK, Lampert ML, Hersberger KE, Meyer Zu Schwabedissen HE. Enriching Medication Review with a Pharmacogenetic Profile - A Case of Tamoxifen Adverse Drug Reactions. Pharmgenomics Pers Med 2021; 14:279-286. [PMID: 33642872 PMCID: PMC7903951 DOI: 10.2147/pgpm.s285807] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Accepted: 01/11/2021] [Indexed: 01/13/2023]
Abstract
Pharmacogenotyping is applied to determine the hereditable component of a patient's susceptibility to experience therapy failure and/or adverse drug reactions (ADRs). We present the case of a female patient diagnosed with breast cancer and treated with tamoxifen as recurrence therapy who experienced various ADRs. Pharmacogenotyping revealed variants in the cytochrome P450 (CYP) enzymes CYP2D6, CYP2C9, and CYP2C19. The observed genotype was associated with a risk for lower tamoxifen efficacy. Aside from the tamoxifen therapy, the comedication was reviewed for the influence of the patient’s pharmacogenetic profile. As a result of this pharmacist-led medication review with pharmacogenetic analyses, concrete genotype-driven recommendations for the treating gynecologist were compiled. This case revealed the added value of a large pharmacogenetic panel and the complexity of integrating a pharmacogenetic profile into a recommendation.
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Affiliation(s)
- Chiara Jeiziner
- Pharmaceutical Care Research Group, Department of Pharmaceutical Sciences, University of Basel, Basel, Switzerland
| | - Céline K Stäuble
- Pharmaceutical Care Research Group, Department of Pharmaceutical Sciences, University of Basel, Basel, Switzerland.,Biopharmacy, Department of Pharmaceutical Sciences, University of Basel, Basel, Switzerland
| | - Markus L Lampert
- Pharmaceutical Care Research Group, Department of Pharmaceutical Sciences, University of Basel, Basel, Switzerland
| | - Kurt E Hersberger
- Pharmaceutical Care Research Group, Department of Pharmaceutical Sciences, University of Basel, Basel, Switzerland
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Jeiziner C, Suter K, Wernli U, Barbarino JM, Gong L, Whirl-Carrillo M, Klein TE, Szucs TD, Hersberger KE, Meyer zu Schwabedissen HE. Pharmacogenetic information in Swiss drug labels - a systematic analysis. Pharmacogenomics J 2021; 21:423-434. [PMID: 33070160 PMCID: PMC8292148 DOI: 10.1038/s41397-020-00195-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 08/18/2020] [Accepted: 10/05/2020] [Indexed: 01/31/2023]
Abstract
Implementation of pharmacogenetics (PGx) and individualization of drug therapy is supposed to obviate adverse drug reactions or therapy failure. Health care professionals (HCPs) use drug labels (DLs) as reliable information about drugs. We analyzed the Swiss DLs to give an overview on the currently available PGx instructions. We screened 4306 DLs applying natural language processing focusing on drug metabolism (pharmacokinetics) and we assigned PGx levels following the classification system of PharmGKB. From 5979 hits, 2564 were classified as PGx-relevant affecting 167 substances. 55% (n = 93) were classified as "actionable PGx". Frequently, PGx information appeared in the pharmacokinetics section and in DLs of the anatomic group "nervous system". Unstandardized wording, appearance of PGx information in different sections and unclear instructions challenge HCPs to identify and interpret PGx information and translate it into practice. HCPs need harmonization and standardization of PGx information in DLs to personalize drug therapies and tailor pharmaceutical care.
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Affiliation(s)
- C. Jeiziner
- grid.6612.30000 0004 1937 0642Pharmaceutical Care Research Group, Department of Pharmaceutical Sciences, University of Basel, Basel, 4001 Switzerland
| | - K. Suter
- grid.6612.30000 0004 1937 0642European Center of Pharmaceutical Medicine, Faculty of Medicine, University of Basel, Basel, 4056 Switzerland
| | - U. Wernli
- grid.6612.30000 0004 1937 0642Pharmaceutical Care Research Group, Department of Pharmaceutical Sciences, University of Basel, Basel, 4001 Switzerland
| | - J. M. Barbarino
- grid.168010.e0000000419368956Department of Biomedical Data Sciences, Stanford University, Stanford, CA 94305 USA
| | - L. Gong
- grid.168010.e0000000419368956Department of Biomedical Data Sciences, Stanford University, Stanford, CA 94305 USA
| | - M. Whirl-Carrillo
- grid.168010.e0000000419368956Department of Biomedical Data Sciences, Stanford University, Stanford, CA 94305 USA
| | - T. E. Klein
- grid.168010.e0000000419368956Department of Biomedical Data Sciences, Stanford University, Stanford, CA 94305 USA ,grid.168010.e0000000419368956Department of Medicine, Stanford University, Stanford, CA 94305 USA
| | - T. D. Szucs
- grid.6612.30000 0004 1937 0642European Center of Pharmaceutical Medicine, Faculty of Medicine, University of Basel, Basel, 4056 Switzerland
| | - K. E. Hersberger
- grid.6612.30000 0004 1937 0642Pharmaceutical Care Research Group, Department of Pharmaceutical Sciences, University of Basel, Basel, 4001 Switzerland
| | - H. E. Meyer zu Schwabedissen
- grid.6612.30000 0004 1937 0642Biopharmacy, Department of Pharmaceutical Sciences, University of Basel, Basel, 4056 Switzerland
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