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Suarez S, Agrawal A, Patel S, Grobman B, Ghandour S, Morena L, Rodriguez A, Machlus K, Roy T, Eagleton M, Dua A. The Impact of Sex on Antiplatelet and Anticoagulant Thromboprophylaxis in Patients With Peripheral Artery Disease Post-revascularization. Ann Surg 2024; 280:463-472. [PMID: 38860382 DOI: 10.1097/sla.0000000000006375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2024]
Abstract
OBJECTIVE The aim of this prospective study was to (1) objectively quantify the impact of sex on platelet function in patients with peripheral artery disease (PAD) taking antiplatelet and anticoagulant medications and (2) to develop and test a personalized, iterative algorithm that personalizes thromboprophylaxis that incorporates platelet function testing. BACKGROUND Women with PAD have worse outcomes as compared with their male counterparts despite having lower risk factors. This health disparity may be mitigated by personalizing thromboprophylaxis regimens. METHODS Patients undergoing revascularization were enrolled. Serial thromboelastography (TEG) and TEG with platelet mapping (TEG-PM) were performed up to 6 months postoperatively to determine objective coagulation profiles. In a subset of patients, the Antiplatelet Coagulation Exactness (ACE) algorithm was implemented, where patients were iteratively evaluated with TEG and given antiplatelet medications to maintain platelet inhibition at >29%. Statistical analysis was performed using unpaired t test, analysis of variance, and Fisher exact test. RESULTS One hundred eighty-one patients met the study criteria. Fifty-eight (32%) patients were females and 123 (68%) were males. In the Aspirin cohort, females showed significantly greater clot strength as maximum amplitude - arachidonic acid (MA AA ) and significantly lower platelet inhibition than males: (37.26 vs 32.38, P <0.01) and (52.95% vs 61.65%, P <0.05), respectively. In the Clopidogrel cohort, females showed higher Maximum Amplitude - Adenosine Diphosphate (MA ADP ) (42.58 vs 40.35, P = not significant [NS]) compared with males. Females on dual antiplatelet therapy had higher MA ADP (39.74 vs 35.07, P =NS) and lower platelet inhibition (45.25% vs 54.99%, P= NS) than males. The incidence of thrombosis of the revascularized segment, defined as thrombotic event, was objectively identified on an arterial duplex. Women showed significantly higher thrombotic events than men (22.95% vs 10.57%, P< 0.05) on the same medication. In our pilot study, implementation of the ACE algorithm led to a significant decrease in the thrombosis rate (3%), including nonthrombotic events for females, versus the historic thrombotic rate (22%) from our institution. CONCLUSIONS Women with PAD exhibited higher platelet reactivity, clot strength, and reduced platelet inhibition in response to antiplatelet therapy. The use of the ACE algorithm to tailor antiplatelet medication in patients with PAD post-revascularization, resulted in a significant decrease in thrombotic event rates. This may serve as an opportune way to mitigate outcome sex-specific disparities caused by inadequate thromboprophylaxis in women.
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Affiliation(s)
- Sasha Suarez
- Division of Vascular and Endovascular Surgery, Massachusetts General Hospital, Boston, MA
| | - Aniket Agrawal
- Division of Vascular and Endovascular Surgery, Massachusetts General Hospital, Boston, MA
| | - Shiv Patel
- Division of Vascular and Endovascular Surgery, Massachusetts General Hospital, Boston, MA
| | - Benjamin Grobman
- Division of Vascular and Endovascular Surgery, Massachusetts General Hospital, Boston, MA
| | - Samir Ghandour
- Division of Vascular and Endovascular Surgery, Massachusetts General Hospital, Boston, MA
| | - Leela Morena
- Division of Vascular and Endovascular Surgery, Massachusetts General Hospital, Boston, MA
| | - Adriana Rodriguez
- Division of Vascular and Endovascular Surgery, Massachusetts General Hospital, Boston, MA
| | - Kellie Machlus
- Vascular Biology Program, Boston Children's Hospital and Department of Surgery, Harvard Medical School, Boston, MA
| | - Trisha Roy
- Department of Cardiovascular Surgery, Houston Methodist, Weill Cornell Medical College, Houston, TX
| | - Matthew Eagleton
- Division of Vascular and Endovascular Surgery, Massachusetts General Hospital, Boston, MA
| | - Anahita Dua
- Division of Vascular and Endovascular Surgery, Massachusetts General Hospital, Boston, MA
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Kambhampati NT, Ahamed H, K K V, David S, Hakeem SC, Pillai G, Kartha N. Cytochrome P450 2C19 Polymorphisms and Its Association With Major Adverse Cardiac Events in Post-coronary Intervention Patients on Clopidogrel in the Tertiary Care Center. Cureus 2023; 15:e34737. [PMID: 36913219 PMCID: PMC9998108 DOI: 10.7759/cureus.34737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/06/2023] [Indexed: 02/10/2023] Open
Abstract
Background Clopidogrel has become essential in managing coronary artery disease and other atherothrombotic diseases. It is an inactive prodrug that needs biotransformation in the liver by various cytochrome P (CYP) 450 isoenzymes for its active metabolite formation. However, 4-30% of patients on clopidogrel have shown no or decreased antiplatelet response. This condition is called 'clopidogrel non-responsiveness' or 'clopidogrel resistance.' This is attributed to genetic heterogeneity causing interindividual variation and increased risk of major adverse cardiac events (MACEs). This study aimed to assess MACEs and their association with CYP450 2C19 polymorphisms in post-coronary intervention patients on clopidogrel. Methods This prospective observational study was conducted on acute coronary syndrome patients, started on clopidogrel following coronary intervention. After considering inclusion and exclusion criteria, 72 patients were enrolled, and a genetic analysis was done. Based on genetic analysis, patients were divided into two groups, normal (CYP2C19*1) and abnormal phenotypes (CYP2C19*2 & *3). These patients were followed for two years, and the MACE during the first year and second year was compared between these two groups. Results Of 72 patients, 39 (54.1%) were normal, and 33 (45.8%) were abnormal genotypes. The mean age of patients is 67.71 ± 9.968. A total of 19 and 27 MACEs were seen during first- and second-year follow-ups. During the first-year follow-up, three (9.1%) patients with abnormal phenotypes developed ST-elevation myocardial infarction (STEMI), and none of the phenotypically normal patients developed STEMI (p-value = 0.183). Non-ST elevation myocardial infarction (NSTEMI) was seen in three (7.7%) normal and seven (21.2%) abnormal phenotype patients (p-value=0.19). Other events, such as thrombotic stroke, stent thrombosis, and cardiac death, were seen in two (6.1%) abnormal phenotypic patients (p-value=0.401). During the second-year follow-up, STEMI was seen in one (2.6%) normal and three (9.7%) abnormal phenotypic patients (p-value=0.183). NSTEMI was seen in four (10.3%) normal and nine (29%) abnormal phenotype patients (p=0.045). Comparison of total MACEs between normal and abnormal phenotypic groups at the end of the first year (p-value=0.011) and second year (p-value=<0.01) has statistical significance. Conclusion We can infer that the risk of developing a recurrent MACE in post-coronary intervention patients on clopidogrel is significantly high in the abnormal phenotypic group (CYP2C19*2 & *3) than in normal phenotypic patients.
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Affiliation(s)
| | - Hisham Ahamed
- Cardiology, Amrita Institute of Medical Sciences and Research Centre, Kochi, IND
| | - Velayudhan K K
- Internal Medicine, Amrita Institute of Medical Sciences and Research Centre, Kochi, IND
| | - Sachin David
- Genetics, Amrita Institute of Medical Sciences and Research Centre, Kochi, IND
| | - Sai Chandra Hakeem
- Internal Medicine, Amrita Institute of Medical Sciences and Research Centre, Kochi, IND
| | - Gopalakrishna Pillai
- Internal Medicine, Amrita Institute of Medical Sciences and Research Centre, Kochi, IND
| | - Niveditha Kartha
- Biostatistics, Amrita Institute of Medical Sciences and Research Centre, Kochi, IND
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Yu L, Wang T, Bai H, Zhu W, Li Y, Wu J, Liu W, Sun L, Yu A, Li H. Association between cytochrome P450 2C19 polymorphism and clinical outcomes in clopidogrel-treated Uygur population with acute coronary syndrome: a retrospective study. BMC Cardiovasc Disord 2021; 21:391. [PMID: 34384383 PMCID: PMC8359105 DOI: 10.1186/s12872-021-02201-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Accepted: 08/04/2021] [Indexed: 11/10/2022] Open
Abstract
Background Acute coronary syndrome (ACS) has become a vital disease with high mortality in the Uygur populations. Clopidogrel plays an important role in reducing the risk of recurrent cardiovascular events after ACS; however, it is a prodrug that requires biotransformation by cytochrome P450 (CYP450). Objectives To determine the effect of genetic polymorphisms in CYP2C19*2, *3, and *17, and along with clinical, demographic factors, on variation in response to clinical outcomes in Uygur patients. Methods A total of 351 patients with ACS were treated with clopidogrel and aspirin for at least 12 months; we recorded major adverse cardiovascular events (MACE) or bleeding within 1 year. Multivariable logistic regression analyses were carried out to identify factors associated with MACE or bleeding. Results We analyze risk factors include age, BMI (body mass index), smoking, alcohol intake, NSTEMI (non-ST-segment elevation myocardial infarction), hypertension, dyslipidemia, concomitant medication, CYP2C19*2 carriers, CYP2C19*17 carriers and metabolizer phenotype. CYP2C19*2 carriers had an odds of having MACE of 2.51 (95% CI: 1.534–4.09) compared with noncarriers (P < .001). However, no factors were significantly associated with bleeding (P > 0.05). Conclusion The CYP2C19*2 gene polymorphism contributes to the risk of MACE in dual clopidogrel—treated Uygur population with ACS with or without PCI (percutaneous coronary intervention). These data may provide valuable insights into the genetic polymorphisms affecting clopidogrel metabolism among minority groups in China.
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Affiliation(s)
- Luhai Yu
- Department of Pharmacy, People's Hospital of Xinjiang Uygur Autonomous Region, No, 91 Tianchi Road, Tianshan District, Urumqi, 830001, Xinjiang, China
| | - Tingting Wang
- Department of Pharmacy, People's Hospital of Xinjiang Uygur Autonomous Region, No, 91 Tianchi Road, Tianshan District, Urumqi, 830001, Xinjiang, China.,Institute of Clinical Pharmacy, People's Hospital of Xinjiang Uygur Autonomous Region, No. 91 Tianchi Road, Tianshan District, Urumqi, 830001, Xinjiang, China
| | - Huidong Bai
- Department of Pharmacy, People's Hospital of Xinjiang Uygur Autonomous Region, No, 91 Tianchi Road, Tianshan District, Urumqi, 830001, Xinjiang, China.,Institute of Clinical Pharmacy, People's Hospital of Xinjiang Uygur Autonomous Region, No. 91 Tianchi Road, Tianshan District, Urumqi, 830001, Xinjiang, China
| | - Weijiang Zhu
- Department of Pharmacy, People's Hospital of Xinjiang Uygur Autonomous Region, No, 91 Tianchi Road, Tianshan District, Urumqi, 830001, Xinjiang, China.,Institute of Clinical Pharmacy, People's Hospital of Xinjiang Uygur Autonomous Region, No. 91 Tianchi Road, Tianshan District, Urumqi, 830001, Xinjiang, China
| | - Yanju Li
- Department of Pharmacy, People's Hospital of Xinjiang Uygur Autonomous Region, No, 91 Tianchi Road, Tianshan District, Urumqi, 830001, Xinjiang, China.,Institute of Clinical Pharmacy, People's Hospital of Xinjiang Uygur Autonomous Region, No. 91 Tianchi Road, Tianshan District, Urumqi, 830001, Xinjiang, China
| | - Jianhua Wu
- Department of Pharmacy, People's Hospital of Xinjiang Uygur Autonomous Region, No, 91 Tianchi Road, Tianshan District, Urumqi, 830001, Xinjiang, China.,Institute of Clinical Pharmacy, People's Hospital of Xinjiang Uygur Autonomous Region, No. 91 Tianchi Road, Tianshan District, Urumqi, 830001, Xinjiang, China
| | - Wenli Liu
- Department of Pharmacy, People's Hospital of Xinjiang Uygur Autonomous Region, No, 91 Tianchi Road, Tianshan District, Urumqi, 830001, Xinjiang, China.,Institute of Clinical Pharmacy, People's Hospital of Xinjiang Uygur Autonomous Region, No. 91 Tianchi Road, Tianshan District, Urumqi, 830001, Xinjiang, China
| | - Li Sun
- Department of Pharmacy, People's Hospital of Xinjiang Uygur Autonomous Region, No, 91 Tianchi Road, Tianshan District, Urumqi, 830001, Xinjiang, China.,Institute of Clinical Pharmacy, People's Hospital of Xinjiang Uygur Autonomous Region, No. 91 Tianchi Road, Tianshan District, Urumqi, 830001, Xinjiang, China
| | - Aiping Yu
- Dean's Office, People's Hospital of Xinjiang Uygur Autonomous Region, No. 91 Tianchi Road, Tianshan District, Urumqi, 830001, Xinjiang, China.
| | - Hongjian Li
- Department of Pharmacy, People's Hospital of Xinjiang Uygur Autonomous Region, No, 91 Tianchi Road, Tianshan District, Urumqi, 830001, Xinjiang, China. .,Institute of Clinical Pharmacy, People's Hospital of Xinjiang Uygur Autonomous Region, No. 91 Tianchi Road, Tianshan District, Urumqi, 830001, Xinjiang, China.
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The effects of polymorphisms in CYP2C19, ATP-binding cassette transporter B1, and paraoxonase-1 on clopidogrel treatment of Uygur patients following percutaneous coronary intervention. Eur J Clin Pharmacol 2021; 77:1679-1686. [PMID: 34164723 DOI: 10.1007/s00228-021-03176-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2021] [Accepted: 06/15/2021] [Indexed: 10/21/2022]
Abstract
BACKGROUND Acute coronary syndrome (ACS) carries a high mortality in Uygur populations. Percutaneous coronary intervention (PCI) is a safe treatment for patients with ACS. Clopidogrel reduces the risk for recurrent cardiovascular events after PCI; however, its activity is influenced by cytochrome P450 (CYP450), ATP-binding cassette transporter B1 (ABCB1), and paraoxonase-1 (PON1). OBJECTIVES To assess the effects of genetic polymorphisms CYP2C19*2, *3, *17, ABCB1 C3435T, and PON1 Q192R along with clinical and demographic factors on variations in responses in Uygur patients following PCI. METHODS We enrolled 281 patients with PCI who were treated with clopidogrel and aspirin for at least 12 months and recorded major adverse cardiovascular events (MACE) or bleeding within 1 year. Approximately, 2 mL of peripheral venous blood samples were used for genotype detection. Binary logistic regression with likelihood ratio forward stepwise analysis and redundancy analysis were carried out to identify factors associated with MACE. We analyzed risk factors including age, body mass index, smoking, hypertension, dyslipidemia, gender, alcohol consumption, diabetes mellitus, carriers of ABCB1 C3435T T allele, carriers of PON1 Q192R A allele, metabolizer phenotype of CYP2C19, number of targeted vessels, and number of stents. RESULTS The CYP2C19 IMs (OR 3.546, 95% CI 1.972-6.375, P = 0.001), CYP2C19 PMs (OR 7.038, 95% CI 1.658-29.880, P = 0.008), and number of targeted vessels (OR 2.033, 95% CI 1.078-3.648, P = 0.026) were significantly associated with MACE. CONCLUSION The CYP2C19 IMs, PMs, and the number of targeted vessels are essential factors associated with MACE risk in dual clopidogrel-treated Uygur population with ACS following PCI. These data provide valuable insights into the genetic polymorphisms affecting clopidogrel response among minority groups in China.
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5
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Alkattan A, Alsalameen E. Polymorphisms of genes related to phase-I metabolic enzymes affecting the clinical efficacy and safety of clopidogrel treatment. Expert Opin Drug Metab Toxicol 2021; 17:685-695. [PMID: 33931001 DOI: 10.1080/17425255.2021.1925249] [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: 10/21/2022]
Abstract
Introduction: Clopidogrel is an antiplatelet medication described as a prodrug, which cannot exert the antiplatelet effect until being biotransformed to the active metabolite. It is commonly used to reduce the risk of blood coagulation in patients diagnosed with acute coronary syndrome, or ischemic stroke.Area covered: We reviewed published articles in PubMed and Google Scholar that focused on the mutations of CYP2C19, CYP3A4, CYP2C9, CYP2B6, and CYP1A2 genes related to clopidogrel clinical efficacy and safety.Expert opinion: Based on current pharmacogenetic studies, patients carrying CYP2C19*2, CYP2C19*3, CYP2C9*3, and CYP2B6*5 alleles may not respond to clopidogrel due to poor platelet inhibition efficacy revealed among them. In contrast, carriers of CYP2C19*17, CYP3A4*1G, and CYP1A2*1C alleles showed a more significant antiplatelet effect in clopidogrel users and expected to have a protective role as a genetic factor against cardiovascular events. Genotyping for either CYP2C19, CYP3A4, CYP2C9, CYP2B6, or CYP1A2 variants is not recommended when considering clopidogrel treatment for patients, as some trials showed specific non-genetic factors (e.g. age and diabetes) that could affect clopidogrel responsiveness. Instead, platelets inhibition tests could be used as predictors of the clinical efficacy of clopidogrel treatment. Other P2Y12 receptor inhibitors should be considered as alternative medications.
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Affiliation(s)
- Abdullah Alkattan
- Department of Research and Development, General Directorate of Medical Consultations, Assisting Deputyship for Primary Health Care, Ministry of Health, Riyadh, Saudi Arabia.,Department of Biomedical Sciences, College of Veterinary Medicine, King Faisal University, Al-Hofuf, Al-Ahsa, Saudi Arabia
| | - Eman Alsalameen
- Department of Pharmacy, King Khaled University Hospital, Medical City King Saud University, Riyadh, Saudi Arabia
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6
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Akkaif MA, Daud NAA, Sha’aban A, Ng ML, Abdul Kader MAS, Noor DAM, Ibrahim B. The Role of Genetic Polymorphism and Other Factors on Clopidogrel Resistance (CR) in an Asian Population with Coronary Heart Disease (CHD). Molecules 2021; 26:1987. [PMID: 33915807 PMCID: PMC8036376 DOI: 10.3390/molecules26071987] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 03/06/2021] [Accepted: 03/19/2021] [Indexed: 12/14/2022] Open
Abstract
Clopidogrel is a widely-used antiplatelet drug. It is important for the treatment and prevention of coronary heart disease. Clopidogrel can effectively reduce platelet activity and therefore reduce stent thrombosis. However, some patients still have ischemic events despite taking the clopidogrel due to the alteration in clopidogrel metabolism attributable to various genetic and non-genetic factors. This review aims to summarise the mechanisms and causes of clopidogrel resistance (CR) and potential strategies to overcome it. This review summarised the possible effects of genetic polymorphism on CR among the Asian population, especially CYP2C19 *2 / *3 / *17, where the prevalence rate among Asians was 23.00%, 4.61%, 15.18%, respectively. The review also studied the effects of other factors and appropriate strategies used to overcome CR. Generally, CR among the Asian population was estimated at 17.2-81.6%. Therefore, our overview provides valuable insight into the causes of RC. In conclusion, understanding the prevalence of drug metabolism-related genetic polymorphism, especially CYP2C19 alleles, will enhance clinical understanding of racial differences in drug reactions, contributing to the development of personalised medicine in Asia.
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Affiliation(s)
- Mohammed Ahmed Akkaif
- School of Pharmaceutical Sciences, Universiti Sains Malaysia, Penang 11800, Malaysia; (M.A.A.); (N.A.A.D.); (A.S.); (D.A.M.N.)
| | - Nur Aizati Athirah Daud
- School of Pharmaceutical Sciences, Universiti Sains Malaysia, Penang 11800, Malaysia; (M.A.A.); (N.A.A.D.); (A.S.); (D.A.M.N.)
| | - Abubakar Sha’aban
- School of Pharmaceutical Sciences, Universiti Sains Malaysia, Penang 11800, Malaysia; (M.A.A.); (N.A.A.D.); (A.S.); (D.A.M.N.)
| | - Mei Li Ng
- Advanced Medical and Dental Institute, Universiti Sains Malaysia, Penang 13200, Malaysia;
| | | | - Dzul Azri Mohamed Noor
- School of Pharmaceutical Sciences, Universiti Sains Malaysia, Penang 11800, Malaysia; (M.A.A.); (N.A.A.D.); (A.S.); (D.A.M.N.)
| | - Baharudin Ibrahim
- School of Pharmaceutical Sciences, Universiti Sains Malaysia, Penang 11800, Malaysia; (M.A.A.); (N.A.A.D.); (A.S.); (D.A.M.N.)
- Faculty of Pharmacy, Universiti Malaya, Kuala Lumpur 50603, Malaysia
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7
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Lewis JP, Backman JD, Reny JL, Bergmeijer TO, Mitchell BD, Ritchie MD, Déry JP, Pakyz RE, Gong L, Ryan K, Kim EY, Aradi D, Fernandez-Cadenas I, Lee MTM, Whaley RM, Montaner J, Gensini GF, Cleator JH, Chang K, Holmvang L, Hochholzer W, Roden DM, Winter S, Altman RB, Alexopoulos D, Kim HS, Gawaz M, Bliden KP, Valgimigli M, Marcucci R, Campo G, Schaeffeler E, Dridi NP, Wen MS, Shin JG, Fontana P, Giusti B, Geisler T, Kubo M, Trenk D, Siller-Matula JM, Ten Berg JM, Gurbel PA, Schwab M, Klein TE, Shuldiner AR. Pharmacogenomic polygenic response score predicts ischaemic events and cardiovascular mortality in clopidogrel-treated patients. EUROPEAN HEART JOURNAL. CARDIOVASCULAR PHARMACOTHERAPY 2020; 6:203-210. [PMID: 31504375 DOI: 10.1093/ehjcvp/pvz045] [Citation(s) in RCA: 65] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Revised: 08/15/2019] [Accepted: 08/29/2019] [Indexed: 01/23/2023]
Abstract
AIMS Clopidogrel is prescribed for the prevention of atherothrombotic events. While investigations have identified genetic determinants of inter-individual variability in on-treatment platelet inhibition (e.g. CYP2C19*2), evidence that these variants have clinical utility to predict major adverse cardiovascular events (CVEs) remains controversial. METHODS AND RESULTS We assessed the impact of 31 candidate gene polymorphisms on adenosine diphosphate (ADP)-stimulated platelet reactivity in 3391 clopidogrel-treated coronary artery disease patients of the International Clopidogrel Pharmacogenomics Consortium (ICPC). The influence of these polymorphisms on CVEs was tested in 2134 ICPC patients (N = 129 events) in whom clinical event data were available. Several variants were associated with on-treatment ADP-stimulated platelet reactivity (CYP2C19*2, P = 8.8 × 10-54; CES1 G143E, P = 1.3 × 10-16; CYP2C19*17, P = 9.5 × 10-10; CYP2B6 1294 + 53 C > T, P = 3.0 × 10-4; CYP2B6 516 G > T, P = 1.0 × 10-3; CYP2C9*2, P = 1.2 × 10-3; and CYP2C9*3, P = 1.5 × 10-3). While no individual variant was associated with CVEs, generation of a pharmacogenomic polygenic response score (PgxRS) revealed that patients who carried a greater number of alleles that associated with increased on-treatment platelet reactivity were more likely to experience CVEs (β = 0.17, SE 0.06, P = 0.01) and cardiovascular-related death (β = 0.43, SE 0.16, P = 0.007). Patients who carried eight or more risk alleles were significantly more likely to experience CVEs [odds ratio (OR) = 1.78, 95% confidence interval (CI) 1.14-2.76, P = 0.01] and cardiovascular death (OR = 4.39, 95% CI 1.35-14.27, P = 0.01) compared to patients who carried six or fewer of these alleles. CONCLUSION Several polymorphisms impact clopidogrel response and PgxRS is a predictor of cardiovascular outcomes. Additional investigations that identify novel determinants of clopidogrel response and validating polygenic models may facilitate future precision medicine strategies.
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Affiliation(s)
- Joshua P Lewis
- Department of Medicine and Program for Personalized and Genomic Medicine, University of Maryland, 670 W. Baltimore St., Baltimore, MD 21201, USA
| | - Joshua D Backman
- Department of Medicine and Program for Personalized and Genomic Medicine, University of Maryland, 670 W. Baltimore St., Baltimore, MD 21201, USA
| | - Jean-Luc Reny
- Department of Internal Medicine, Béziers Hospital, 2 Rue Valentin Hau, BP 740, Béziers 34525, France.,Department of Medicine, Geneva Platelet Group, University of Geneva School of Medicine, University Hospitals of Geneva, 24 rue du Général-Dufour, Genève 4 CH-1211, Switzerland
| | - Thomas O Bergmeijer
- Department of Cardiology, Antonius Center for Platelet Function Research, St Antonius Hospital, P O Box 2500, Nieuwegein 3432 EM, The Netherlands
| | - Braxton D Mitchell
- Department of Medicine and Program for Personalized and Genomic Medicine, University of Maryland, 670 W. Baltimore St., Baltimore, MD 21201, USA.,Geriatrics Research and Education Clinical Center, Baltimore Veterans Administration Medical Center, 10 N. Greene St., Baltimore, MD 21201, USA
| | - Marylyn D Ritchie
- Center for Translational Bioinformatics, Institute for Biomedical Informatics, University of Pennsylvania, A301 Richards Building, 3700 Hamilton Walk, Philadelphia, PA 19104, USA
| | - Jean-Pierre Déry
- Quebec Heart and Lung Institute, University Laval, 2725 chemin Sainte-Foy, Quebec City G1V 4G5, Canada
| | - Ruth E Pakyz
- Department of Medicine and Program for Personalized and Genomic Medicine, University of Maryland, 670 W. Baltimore St., Baltimore, MD 21201, USA
| | - Li Gong
- Department of Biomedical Data Science, Stanford University, 443 Via Ortega, Room 213, Stanford, CA 94305, USA
| | - Kathleen Ryan
- Department of Medicine and Program for Personalized and Genomic Medicine, University of Maryland, 670 W. Baltimore St., Baltimore, MD 21201, USA
| | - Eun-Young Kim
- Department of Clinical Pharmacology, Inje University, Busan Paik Hospital, Bokji-ro 75, Busangjin-gu, Busan 614-735, South Korea
| | - Daniel Aradi
- Department of Cardiology, Heart Center Balatonfüred, 2 Gyogy Ter, Balatonfured 8230, Hungary
| | - Israel Fernandez-Cadenas
- Stroke Pharmacogenomics and Genetic Group, Fundació Docencia i Recerca Mutuaterrassa, 508221 Terrassa, Barcelona 8041, Spain.,Department of Neurology, Vall d'Hebron Institute of Research, Passeig Vall d'Hebron, Barcelona 8035, Spain
| | - Ming Ta Michael Lee
- Genomic Medicine Institute, Geisinger Health System, 100 N. Academy Ave., Danville, PA 17822, USA
| | - Ryan M Whaley
- Department of Biomedical Data Science, Stanford University, 443 Via Ortega, Room 213, Stanford, CA 94305, USA
| | - Joan Montaner
- Neurovascular Research Laboratory, Vall d'Hebron Institute of Research, Passeig Vall d'Hebron 119-129, Barcelona 8035, Spain
| | - Gian Franco Gensini
- Department of Experimental and Clinical Medicine, University of Florence, Largo Brambilla, Florence 50055, Italy
| | - John H Cleator
- Division of Cardiology, Vanderbilt University Medical Center, 2215B Garland Avenue, Nashville, TN 37232, USA.,Department of Pharmacology, Vanderbilt University Medical Center, 2215B Garland Avenue, Nashville, TN 37232, USA
| | - Kiyuk Chang
- Department of Internal Medicine, Cardiology Division, Seoul St. Mary's Hospital, The Catholic University of Korea, 222 Banpo-daero, Seocho-Gu, Seoul 6591, South Korea
| | - Lene Holmvang
- Department of Cardiology, Rigshospitalet, Copenhagen University Hospital, Inge Lehmannsvej 7 - 2142, Copenhagen 2100, Denmark
| | - Willibald Hochholzer
- Department of Cardiology and Angiology II, University Heart Center Freiburg, Suedring 15, Bad Krozingen 79189, Germany
| | - Dan M Roden
- Department of Pharmacology, Vanderbilt University Medical Center, 2215B Garland Avenue, Nashville, TN 37232, USA.,Department of Medicine, Vanderbilt University Medical Center, 2215B Garland Avenue, Nashville, TN 37232, USA.,Department of Biomedical Informatics, Vanderbilt University Medical Center, 2215B Garland Avenue, Nashville, TN 37232, USA
| | - Stefan Winter
- Dr Margarete Fischer-Bosch Institute of Clinical Pharmacology, Auerbachstrasse 112, Stuttgart, 70376 Germany
| | - Russ B Altman
- Department of Bioengineering, Genetics, and Medicine, Stanford University, 443 Via Ortega Drive, Shriram Room 209, Stanford, CA 94305, USA
| | | | - Ho-Sook Kim
- Department of Clinical Pharmacology, Inje University, Busan Paik Hospital, Gaegum2-dong 622-165, Busanjin-Gu, Busan 614-735, South Korea
| | - Meinrad Gawaz
- Department of Cardiology and Angiology, University of Tübingen, Otfired-Müller-Straße 10, Tübingen 72076, Germany
| | - Kevin P Bliden
- Center for Thrombosis Research and Drug Development, Inova Heart and Vascular Institute, 3300 Gallows Rd, Falls Church, VA 22042, USA
| | - Marco Valgimigli
- Department of Cardiology, Bern University Hospital, Freiburgstrasse 8, Bern 3010, Switzerland
| | - Rossella Marcucci
- Department of Experimental and Clinical Medicine, University of Florence, Largo Brambilla, Florence 50055, Italy.,Atherothrombotic Diseases Center, Careggi University Hospital, Largo G. Alessandro Brambilla, Florence 50134, Italy
| | - Gianluca Campo
- Department of Cardiology, University Hospital of Ferrara, Via Aldo Moro 8, Cona (FE), Ferrara 44123, Italy.,GVM Care & Research, Maria Cecilia Hospital, Via Madonna di Genova, 1, Cotignola 48033, Italy
| | - Elke Schaeffeler
- Dr Margarete Fischer-Bosch Institute of Clinical Pharmacology, Auerbachstrasse 112, Stuttgart, 70376 Germany
| | - Nadia P Dridi
- Department of Cardiology, Rigshospitalet, Copenhagen University Hospital, Inge Lehmannsvej 7 - 2142, Copenhagen 2100, Denmark
| | - Ming-Shien Wen
- Division of Cardiology, Department of Internal Medicine, Chang Gung Memorial Hospital, Linkou and School of Medicine, Chang Gung University, No. 5, Fuxing St, Guishan Dist., Taoyuan City 333, Taiwan
| | - Jae Gook Shin
- Department of Clinical Pharmacology, Inje University, Busan Paik Hospital, Gaegum2-dong 622-165, Busanjin-Gu, Busan 614-735, South Korea
| | - Pierre Fontana
- Department of Medicine, Geneva Platelet Group, University of Geneva School of Medicine, University Hospitals of Geneva, 24 rue du Général-Dufour, Genève 4 CH-1211, Switzerland.,Division of Angiology and Haemostasis, University Hospitals of Geneva, 24 Rue Gabrielle-Perret-Gentil, Geneva 1205, Switzerland
| | - Betti Giusti
- Department of Experimental and Clinical Medicine, University of Florence, Largo Brambilla, Florence 50055, Italy.,Atherothrombotic Diseases Center, Careggi University Hospital, Largo G. Alessandro Brambilla, Florence 50134, Italy
| | - Tobias Geisler
- Department of Cardiology and Angiology, University of Tübingen, Otfired-Müller-Straße 10, Tübingen 72076, Germany
| | - Michiaki Kubo
- Laboratory for Genotyping Development, RIKEN Center for Integrative Medical Sciences, 1-7-22, Suehiro-cho, Tsurumi, Yokohama 230-0045, Japan
| | - Dietmar Trenk
- Department of Cardiology and Angiology II, Clinical Pharmacology, University Heart Centre Freiburg, Suedring 15, Bad Krozingen D-79189, Germany
| | - Jolanta M Siller-Matula
- Department of Cardiology, Medical University of Vienna, Waehringer Guertel 18-20, Vienna 1090, Austria
| | - Jurriën M Ten Berg
- Department of Cardiology, Antonius Center for Platelet Function Research, St Antonius Hospital, P O Box 2500, Nieuwegein 3432 EM, The Netherlands
| | - Paul A Gurbel
- Department of Cardiology and Angiology, University of Tübingen, Otfired-Müller-Straße 10, Tübingen 72076, Germany
| | - Matthias Schwab
- Dr Margarete Fischer-Bosch Institute of Clinical Pharmacology, Auerbachstrasse 112, Stuttgart, 70376 Germany.,Department of Clinical Pharmacology, University of Tuebingen, Otfried-Mueller-Strasse 10, Tuebingen 72076, Germany.,Department of Pharmacy and Biochemistry, University of Tuebingen, Otfried-Mueller-Strasse 10, Tuebingen 72076, Germany
| | - Teri E Klein
- Department of Biomedical Data Science, Stanford University, 443 Via Ortega, Room 213, Stanford, CA 94305, USA.,Department of Bioengineering, Genetics, and Medicine, Stanford University, 443 Via Ortega Drive, Shriram Room 209, Stanford, CA 94305, USA
| | - Alan R Shuldiner
- Department of Medicine and Program for Personalized and Genomic Medicine, University of Maryland, 670 W. Baltimore St., Baltimore, MD 21201, USA
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Alvitigala BY, Gooneratne LV, Constantine GR, Wijesinghe RANK, Arawwawala LDAM. Pharmacokinetic, pharmacodynamic, and pharmacogenetic assays to monitor clopidogrel therapy. Pharmacol Res Perspect 2020; 8:e00686. [PMID: 33200888 PMCID: PMC7670852 DOI: 10.1002/prp2.686] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2020] [Revised: 10/20/2020] [Accepted: 10/21/2020] [Indexed: 12/11/2022] Open
Abstract
Clopidogrel is the most common and widely used antiplatelet agent for patients with coronary artery disease following confirmation by electrocardiographic studies. The nonresponsiveness of patients to clopidogrel and the possibility of testing for clopidogrel resistance by platelet function assays (PFA) are contentious issues. Light transmission aggregometry (LTA) is considered as the gold standard test among all PFA. In this review, the most commonly used PFA used for monitoring the effect of clopidogrel, LTA, vasodilator-stimulated phosphoprotein assay phosphorylation, rotational thromboelastometry (ROTEM) delta and ROTEM platelet, thromboelastography, PFA-100, VerifyNow P2Y12 assay, Multiplate analyzer, Plateletworks assay and pharmacogenetic studies, are comparatively discussed including their principles of action, advantages, and disadvantages. VerifyNow P2Y12 assay can be accepted as the ideal point of care test out of the discussed assays. However, modified assays are required which could overcome the limitations associated with currently available assays.
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Affiliation(s)
- Bhawani Yasassri Alvitigala
- Department of Medical Laboratory ScienceFaculty of Health SciencesThe Open University of Sri LankaNugegodaSri Lanka
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9
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Effect of CYP3A4*22 and PPAR-α Genetic Variants on Platelet Reactivity in Patients Treated with Clopidogrel and Lipid-Lowering Drugs Undergoing Elective Percutaneous Coronary Intervention. Genes (Basel) 2020; 11:genes11091068. [PMID: 32932966 PMCID: PMC7564055 DOI: 10.3390/genes11091068] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 09/02/2020] [Accepted: 09/04/2020] [Indexed: 12/27/2022] Open
Abstract
This study aims to determine whether genetic variants that influence CYP3A4 expression are associated with platelet reactivity in clopidogrel-treated patients undergoing elective percutaneous coronary intervention (PCI), and to evaluate the influence of statin/fibrate co-medication on these associations. A study cohort was used containing 1124 consecutive elective PCI patients in whom CYP3A4*22 and PPAR-α (G209A and A208G) SNPs were genotyped and the VerifyNow P2Y12 platelet reactivity test was performed. Minor allele frequencies were 0.4% for CYP3A4*22/*22, 6.8% for PPAR-α G209A AA, and 7.0% for PPAR-α A208G GG. CYP3A4*22 was not associated with platelet reactivity. The PPAR-α genetic variants were significantly associated with platelet reactivity (G209A AA: −24.6 PRU [−44.7, −4.6], p = 0.016; A208G GG: −24.6 PRU [−44.3, −4.8], p = 0.015). Validation of these PPAR-α results in two external cohorts, containing 716 and 882 patients, respectively, showed the same direction of effect, although not statistically significant. Subsequently, meta-analysis of all three cohorts showed statistical significance of both variants in statin/fibrate users (p = 0.04 for PPAR-a G209A and p = 0.03 for A208G), with no difference in statin/fibrate non-users. In conclusion, PPAR-α G209A and A208G were associated with lower platelet reactivity in patients undergoing elective PCI who were treated with clopidogrel and statin/fibrate co-medication. Further research is necessary to confirm these findings.
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10
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Wang T, Zhao T, Bao S, Jia L, Feng J, Yu A, Sun L, Guo X, Li H, Yu L. CYP2C19, PON1, and ABCB1 gene polymorphisms in Han and Uygur populations with coronary artery disease in Northwestern Xinjiang, China, From 2014 Through 2019. Medicine (Baltimore) 2020; 99:e20582. [PMID: 32702814 PMCID: PMC7373584 DOI: 10.1097/md.0000000000020582] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
The morbidity of coronary artery disease (CAD) in the Uygur population of Xinjiang was much higher than the national average. Clopidogrel is the most commonly used medication worldwide in dual antiplatelet therapy for CAD, and the response of clopidogrel is affected by CYP2C19, PON1, and ABCB1 genetic polymorphisms. The distribution of CYP2C19*17, ABCB1, and PON1 genetic polymorphisms in Han and Uygur populations with CAD of Xinjiang has not been investigated.This study aimed to investigate the frequencies of CYP2C19, PON1, and ABCB1 genetic polymorphisms, and to identify the metabolizer phenotype of CYP2C19 in Han and Uygur populations with CAD in Northwestern Xinjiang, China. We identified 602 Han and 527 Uygur patients from 2014 through 2019 and studied genotypes for selected allele polymorphisms using sequencing by hybridization.There were significantly different allele frequencies and genotype frequencies between the 2 ethnic groups in terms of CYP2C19*2, *3, *17, ABCB1 and PON1, (P < .05). For CYP2C19*17, the frequency of TT genotype was 2.5% in Uygur patients, but it was undetectable in Han patients. In both the intermediate and poor metabolizer groups, the genotypes polymorphisms CYP2C19*2, *3, *17 were significantly less common in Uygur patients than in Han patients (P < .001). By contrast, the proportion of ultra-metabolizers as defined by CYP2C19*2, *3, *17 polymorphisms significantly higher in Uygur patients (18.6%) than in Han patients (1.7%, P < .001). The CYP2C19*2 frequency was significantly different between Han patients and Han healthy groups (P < .001), while the CYP2C19*3 frequency was significantly different between Uygur patients and Uygur healthy groups (P < .001).Our study supports the notion of interethnic differences in terms of CYP2C19, PON1, and ABCB1 polymorphisms and CYP2C19 genotype-defined clopidogrel metabolic groups. These finding could provide valuable data and insights into personalized CAD treatment for the Uygur and Han populations in Xinjiang.
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Affiliation(s)
- Tingting Wang
- Department of Pharmacy
- Institute of Clinical Pharmacy
| | - Ting Zhao
- Department of Pharmacy
- Institute of Clinical Pharmacy
| | - Sichen Bao
- Department of Pharmacy
- Institute of Clinical Pharmacy
| | - Li Jia
- Department of Pharmacy
- Institute of Clinical Pharmacy
| | - Jie Feng
- Department of Pharmacy
- Institute of Clinical Pharmacy
| | - Aiping Yu
- Dean's Office, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi, Xinjiang, China
| | - Li Sun
- Department of Pharmacy
- Institute of Clinical Pharmacy
| | - Xihong Guo
- Department of Pharmacy
- Institute of Clinical Pharmacy
| | - Hongjian Li
- Department of Pharmacy
- Institute of Clinical Pharmacy
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11
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Study of the allelic variants CYP2C9*2 and CYP2C9*3 in samples of the Peruvian mestizo population. BIOMEDICA : REVISTA DEL INSTITUTO NACIONAL DE SALUD 2019; 39:601-610. [PMID: 31584773 PMCID: PMC7357368 DOI: 10.7705/biomedica.4636] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 07/21/2018] [Indexed: 12/20/2022]
Abstract
Introducción. El citocromo CYP2C9 metaboliza, aproximadamente, el 15 % de los fármacos prescritos. Su gen presenta alelos cuyas frecuencias difieren entre grupos étnicos y poblaciones. Los alelos CYP2C9*2 y CYP2C9*3 dan cuenta de una enzima con actividad disminuida cuya frecuencia no ha sido determinada en la población mestiza peruana. Objetivo. Caracterizar la frecuencia de las variantes *2 (rs1799853) y *3 (rs1057910) del gen CYP2C9 en muestras de población mestiza peruana provenientes de Lima, Tacna y Junín. Materiales y métodos. Se hizo un estudio descriptivo, observacional y prospectivo, con muestreo no probabilístico, por conveniencia e incidental. Se incluyeron 218 sujetos según los criterios de inclusión y exclusión; todos los participantes otorgaron su consentimiento informado. El ADN genómico se obtuvo mediante hisopado de mucosa oral, y la detección de los genotipos para los alelos CYP2C9*2 y CYP2C9*3 se hizo mediante reacción en cadena de la polimerasa (PCR) en tiempo real, utilizando sondas TaqMan™. Resultados. Las variantes de CYP2C9*2 y CYP2C9*3 están presentes en la población mestiza peruana con frecuencias de 0,046 y 0,062, respectivamente. El análisis de las frecuencias genotípicas observadas permitió predecir que la frecuencia de fenotipos metabolismo intermedio sería del 15,13 % (CYP2C9*1/*2: 5,96 %; CYP2C9*1/*3: 9,17 %), y la de fenotipos de metabolismo lento, del 3,22 % (CYP2C9*2/*2: 1,38 %; CYP2C9*3/*3: 1,38 %; CYP2C9*2/*3: 0,46 %). Conclusiones. Se lograron determinar las frecuencias genotípicas y alélicas para las variantes *2 y *3 del gen CYP2C9 en una muestra no probabilística de población mestiza peruana. Las frecuencias obtenidas (0,046 y 0,062, respectivamente) están entre las esperadas para una población mestiza sudamericana con ascendencia amerindia, europea, africana y asiática.
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12
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Máchal J, Hlinomaz O. Efficacy of P2Y12 Receptor Blockers After Myocardial Infarction and Genetic Variability of their Metabolic Pathways. Curr Vasc Pharmacol 2018; 17:35-40. [DOI: 10.2174/1570161116666180206110657] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Revised: 07/18/2017] [Accepted: 11/07/2017] [Indexed: 01/15/2023]
Abstract
Background: Various antiplatelet drugs are used following Acute Coronary Syndromes
(ACS). Of them, adenosine diphosphate receptor P2Y12 inhibitors clopidogrel, prasugrel and ticagrelor
are currently used for post-ACS long-term treatment. Although they act on the same receptor, they differ
in pharmacodynamics and pharmacokinetics. Several enzymes and transporters involved in the metabolism
of P2Y12 inhibitors show genetic variability with functional impact. This includes Pglycoprotein,
carboxylesterase 1 and, most notably, CYP2C19 that is important in clopidogrel activation.
Common gain-of-function or loss-of-function alleles of CYP2C19 gene are associated with lower
or higher platelet reactivity that may impact clinical outcomes of clopidogrel treatment. Prasugrel is
considered to be less dependent on CYP2C19 variability as it is also metabolized by other CYP450 isoforms.
Some studies, however, showed the relevance of CYP2C19 variants for platelet reactivity during
prasugrel treatment as well. Ticagrelor is metabolized mainly by CYP3A4, which does not show functionally
relevant genetic variability. Its concentrations may be modified by the variants of Pglycoprotein
gene ABCB1. While no substantial difference between the clinical efficacy of prasugrel
and ticagrelor has been documented, both of them have been shown to be superior to clopidogrel in
post-ACS treatment. This can be partially explained by lower variability at each step of their metabolism.
It is probable that factors influencing the pharmacokinetics of both drugs, including genetic factors,
may predict the clinical efficacy of antiplatelet treatment in personalized medicine.
</P><P>
Conclusion: We summarize the pharmacokinetics and pharmacogenetics of P2Y12 inhibitors with respect
to their clinical effects in post-myocardial infarction treatment.
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Affiliation(s)
- Jan Máchal
- International Clinical Research Center, St. Anne's University Hospital Brno, Brno, Czech Republic
| | - Ota Hlinomaz
- International Clinical Research Center, St. Anne's University Hospital Brno, Brno, Czech Republic
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13
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Joo HJ, Ahn SG, Park JH, Park JY, Hong SJ, Kim SY, Choi W, Gwon H, Lim YH, Kim W, Kang WC, Cho YH, Kim YH, Yoon J, Shin W, Hong MK, Garg S, Jang Y, Lim DS. Effects of genetic variants on platelet reactivity and one-year clinical outcomes after percutaneous coronary intervention: A prospective multicentre registry study. Sci Rep 2018; 8:1229. [PMID: 29352151 PMCID: PMC5775197 DOI: 10.1038/s41598-017-18134-y] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2017] [Accepted: 12/06/2017] [Indexed: 12/17/2022] Open
Abstract
Clopidogrel is the mainstay for antiplatelet treatment after percutaneous coronary intervention (PCI). The relationship of platelet reactivity and genetic polymorphism with clinical outcomes with newer-generation drug-eluting stents is unclear. We analysed 4,587 patients for the most powerful single-nucleotide polymorphisms (CYP2C19, CYP2C9, ABCB1, PON1, and P2Y12) related to on-treatment platelet reactivity (OPR). The optimal cut-off value of high OPR for major adverse thrombotic events was 266. CYP2C19 was significantly associated with high OPR and the number of CYP2C19*R (*2 or *3) alleles was proportional to the increased risk of high OPR. Death, myocardial infarction (MI), stroke, stent thrombosis, and bleeding events were assessed during a 1-year follow-up period. Primary endpoints were death and non-fatal MI. The cumulative 1-year incidence of death and stent thrombosis was significantly higher in patients with CYP2C19*2/*2, CYP2C19*2/*3, and CYP2C19*3/*3 (Group 3) than in patients with CYP2C19*1/*1 (Group 1). Multivariate Cox proportional hazard model showed that cardiac death risk was significantly higher in Group 3 than in Group 1 (hazard ratio 2.69, 95% confidence interval 1.154–6.263, p = 0.022). No association was reported between bleeding and OPR. Thus, CYP2C19 may exert a significant impact on the prognosis of PCI patients even in the era of newer-generation drug-eluting stents.
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Affiliation(s)
- Hyung Joon Joo
- Department of Cardiology, Cardiovascular Center, Korea University Anam Hospital, Seoul, South Korea
| | - Sung Gyun Ahn
- Department of Cardiology, Yonsei University Wonju Severance Christian Hospital, Wonju, South Korea
| | - Jae Hyoung Park
- Department of Cardiology, Cardiovascular Center, Korea University Anam Hospital, Seoul, South Korea
| | - Ji Young Park
- Department of Clinical Pharmacology and Toxicology, Korea University Anam Hospital, Korea University College of Medicine, Seoul, South Korea
| | - Soon Jun Hong
- Department of Cardiology, Cardiovascular Center, Korea University Anam Hospital, Seoul, South Korea
| | - Seok-Yeon Kim
- Department of Cardiology, Seoul Medical Center, Seoul, South Korea
| | - WoongGil Choi
- Division of Cardiology, Department of Internal Medicine, Konkuk University College of Medicine, Chungju, South Korea
| | - HyeonCheol Gwon
- Division of Cardiology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Young-Hyo Lim
- Division of Cardiology, Department of Internal Medicine, Hanyang University College of Medicine, Seoul, South Korea
| | - Weon Kim
- Department of Internal Medicine, Division of Cardiology, Kyung Hee University Hospital, Kyung Hee University School of Medicine, Seoul, South Korea
| | - Woong Chol Kang
- Department of Cardiology, Gachon University Gil Medical Center, Incheon, South Korea
| | - Yun-Hyeong Cho
- Department of Internal Medicine, Seonam University Myongji Hospital, Goyang, South Korea
| | - Yong Hoon Kim
- Division of Cardiology, Department of Internal Medicine, Kangwon National University School of Medicine, Chuncheon City, South Korea
| | - JungHan Yoon
- Department of Cardiology, Yonsei University Wonju Severance Christian Hospital, Wonju, South Korea
| | - WonYong Shin
- Division of Cardiology, Department of Internal Medicine, Soonchunhyang University Cheonan Hospital, Cheonan, South Korea
| | - Myeong-Ki Hong
- Division of Cardiology, Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, South Korea
| | - Scot Garg
- East Lancashire Hospitals NHS Trust, Blackburn, Lancashire, UK
| | - Yangsoo Jang
- Division of Cardiology, Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, South Korea.
| | - Do-Sun Lim
- Department of Cardiology, Cardiovascular Center, Korea University Anam Hospital, Seoul, South Korea.
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14
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Meta-analysis of effects of ABCB1 polymorphisms on clopidogrel response among patients with coronary artery disease. Eur J Clin Pharmacol 2017; 73:843-854. [PMID: 28378058 DOI: 10.1007/s00228-017-2235-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2016] [Accepted: 03/07/2017] [Indexed: 11/30/2022]
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15
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Amin AM, Sheau Chin L, Azri Mohamed Noor D, SK Abdul Kader MA, Kah Hay Y, Ibrahim B. The Personalization of Clopidogrel Antiplatelet Therapy: The Role of Integrative Pharmacogenetics and Pharmacometabolomics. Cardiol Res Pract 2017; 2017:8062796. [PMID: 28421156 PMCID: PMC5379098 DOI: 10.1155/2017/8062796] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2016] [Accepted: 02/14/2017] [Indexed: 12/12/2022] Open
Abstract
Dual antiplatelet therapy of aspirin and clopidogrel is pivotal for patients undergoing percutaneous coronary intervention. However, the variable platelets reactivity response to clopidogrel may lead to outcome failure and recurrence of cardiovascular events. Although many genetic and nongenetic factors are known, great portion of clopidogrel variable platelets reactivity remain unexplained which challenges the personalization of clopidogrel therapy. Current methods for clopidogrel personalization include CYP2C19 genotyping, pharmacokinetics, and platelets function testing. However, these methods lack precise prediction of clopidogrel outcome, often leading to insufficient prediction. Pharmacometabolomics which is an approach to identify novel biomarkers of drug response or toxicity in biofluids has been investigated to predict drug response. The advantage of pharmacometabolomics is that it does not only predict the response but also provide extensive information on the metabolic pathways implicated with the response. Integrating pharmacogenetics with pharmacometabolomics can give insight on unknown genetic and nongenetic factors associated with the response. This review aimed to review the literature on factors associated with the variable platelets reactivity response to clopidogrel, as well as appraising current methods for the personalization of clopidogrel therapy. We also aimed to review the literature on using pharmacometabolomics approach to predict drug response, as well as discussing the plausibility of using it to predict clopidogrel outcome.
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Affiliation(s)
- Arwa M. Amin
- School of Pharmaceutical Sciences, Universiti Sains Malaysia, Penang, Malaysia
| | - Lim Sheau Chin
- School of Pharmaceutical Sciences, Universiti Sains Malaysia, Penang, Malaysia
| | | | | | - Yuen Kah Hay
- School of Pharmaceutical Sciences, Universiti Sains Malaysia, Penang, Malaysia
| | - Baharudin Ibrahim
- School of Pharmaceutical Sciences, Universiti Sains Malaysia, Penang, Malaysia
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16
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Genotyping of six clopidogrel-metabolizing enzyme polymorphisms has a minor role in the assessment of platelet reactivity in patients with acute coronary syndrome. Anatol J Cardiol 2017; 17:303-312. [PMID: 28179614 PMCID: PMC5469111 DOI: 10.14744/anatoljcardiol.2016.7390] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
OBJECTIVE To evaluate the contribution of six polymorphisms to the platelet reactivity in patients with acute coronary syndrome (ACS) treated with clopidogrel. METHODS Cross-sectional study of 278 consecutive patients with ACS. Detailed clinical information for each patient was collected and genotypes (CYP2C9*2, CYP2C9*3, CYP2C19*2, CYP2C19*17, CYP3A4*1B, and PON1-Q192R) were evaluated with TaqMan® and KASPar® assays. Platelet reactivity was measured with VerifyNow®. RESULTS Mean age of patients was 66±11 years and 182 (65.5%) patients presented ACS without ST-segment elevation. A total of 206 (74.1%) patients presented poor response to clopidogrel (PRC). CYP2C19*2 polymorphism (p=0.038) was associated with PRC in the univariate setting. In the multiple logistic regression analysis, the risk factors for PRC were the presence of CYP3A4*1B allele (odds ratio [OR] 4.03; 95% confidence interval [CI] 1.01-16.34), age (OR 1.43; 95% CI 1.03-2.00), and body mass index (OR 4.05; 95% CI 1.21-13.43), whereas elevated hemoglobin was a protective factor. Discrimination of PRC through the model that included the six polymorphisms added modest information to the model based on clinical variables (C statistic difference 3.9%). CONCLUSION CYP3A4*1B allele may be an independent determinant of PRC in patients with ACS, although the variability in response to clopidogrel explained by the six polymorphisms is poor when compared to clinical variables.
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17
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Danielak D, Karaźniewicz-Łada M, Wiśniewska K, Bergus P, Burchardt P, Komosa A, Główka F. Impact of CYP3A4*1G Allele on Clinical Pharmacokinetics and Pharmacodynamics of Clopidogrel. Eur J Drug Metab Pharmacokinet 2017; 42:99-107. [PMID: 26891871 PMCID: PMC5306247 DOI: 10.1007/s13318-016-0324-7] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND AND OBJECTIVES Resistance to the antiplatelet treatment with clopidogrel has both genetic and non-genetic causes. Polymorphic variants of cytochrome P450 3A4 isoenzyme involved in the bioactivation of clopidogrel might have an influence on responsiveness to the drug. The aim of this study was to evaluate the influence of CYP3A4*1G (IVS10+12G>A, rs2242480) on the pharmacokinetics and pharmacodynamics of clopidogrel. METHODS CYP3A4*1G polymorphism was determined in a group of 82 patients undergoing percutaneous coronary intervention and taking 75 mg of clopidogrel daily. Concentrations of clopidogrel and its metabolites, inactive carboxylic acid derivative and two diastereoisomers of active thiol metabolite: H3 and H4, were determined by a validated HPLC-MS/MS method. Pharmacodynamic effect was measured by an impedance method with a Multiplate analyzer. Moreover, an effect of factors, such as CYP2C19 phenotype, age, gender, body mass index and interactions with drugs metabolized by CYP3A4 were also investigated. RESULTS In the studied group allele frequencies were: wt-0.921, *1G-0.079. Pharmacokinetic parameters of clopidogrel and its metabolites were not significantly different in carriers of *1G allele, comparing to wt/wt homozygotes. Platelet aggregation was higher in heterozygotes than in wt/wt carriers; however, the difference was not statistically significant (p = 0.484). In a multivariate analysis, which included age, body mass index, co-morbidities and coadministered drugs, CYP3A4*1G was not a predictor of values of H3 and H4 pharmacokinetic parameters and platelet aggregation. CONCLUSION CYP3A4*1G might not be a significant contributor to the variability in pharmacokinetic and pharmacodynamic response to clopidogrel therapy.
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Affiliation(s)
- Dorota Danielak
- Department of Physical Pharmacy and Pharmacokinetics, Poznan University of Medical Sciences, Święcickiego 6 St, 61-781, Poznan, Poland.
| | - Marta Karaźniewicz-Łada
- Department of Physical Pharmacy and Pharmacokinetics, Poznan University of Medical Sciences, Święcickiego 6 St, 61-781, Poznan, Poland
| | - Karolina Wiśniewska
- Department of Physical Pharmacy and Pharmacokinetics, Poznan University of Medical Sciences, Święcickiego 6 St, 61-781, Poznan, Poland
| | - Piotr Bergus
- Department of Physical Pharmacy and Pharmacokinetics, Poznan University of Medical Sciences, Święcickiego 6 St, 61-781, Poznan, Poland
| | - Paweł Burchardt
- Department of Biology and Environmental Sciences, Poznan University of Medical Sciences, Poznan, Poland
- Department of Cardiology, J. Strus Hospital, Poznan, Poland
| | - Anna Komosa
- First Department of Cardiology, Poznan University of Medical Sciences, Poznan, Poland
| | - Franciszek Główka
- Department of Physical Pharmacy and Pharmacokinetics, Poznan University of Medical Sciences, Święcickiego 6 St, 61-781, Poznan, Poland
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Ou W, He Y, Li A, Liu B, Jin L. Genotype Frequencies of CYP2C19, P2Y 12 and GPIIIa Polymorphisms in Coronary Heart Disease Patients of Han Ethnicity, and Their Impact on Clopidogrel Responsiveness. Int Heart J 2016; 57:586-92. [DOI: 10.1536/ihj.16-006] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Affiliation(s)
- Wenchao Ou
- Department of Cardiology, Guang-zhou Institute of Cardiovascular Diseases, The Second Affiliated Hospital of Guangzhou Medical University
| | - Yongcong He
- Department of Cardiology, Guangdong No. 2 Provincial People’s Hospital
| | - Aiqun Li
- Department of Cardiology, Guang-zhou Institute of Cardiovascular Diseases, The Second Affiliated Hospital of Guangzhou Medical University
| | - Benrong Liu
- Department of Cardiology, Guang-zhou Institute of Cardiovascular Diseases, The Second Affiliated Hospital of Guangzhou Medical University
| | - Lijun Jin
- Department of Cardiology, Guang-zhou Institute of Cardiovascular Diseases, The Second Affiliated Hospital of Guangzhou Medical University
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19
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Jiang XL, Samant S, Lesko LJ, Schmidt S. Clinical pharmacokinetics and pharmacodynamics of clopidogrel. Clin Pharmacokinet 2015; 54:147-66. [PMID: 25559342 DOI: 10.1007/s40262-014-0230-6] [Citation(s) in RCA: 127] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Acute coronary syndromes (ACS) remain life-threatening disorders, which are associated with high morbidity and mortality. Dual antiplatelet therapy with aspirin and clopidogrel has been shown to reduce cardiovascular events in patients with ACS. However, there is substantial inter-individual variability in the response to clopidogrel treatment, in addition to prolonged recovery of platelet reactivity as a result of irreversible binding to P2Y12 receptors. This high inter-individual variability in treatment response has primarily been associated with genetic polymorphisms in the genes encoding for cytochrome (CYP) 2C19, which affect the pharmacokinetics of clopidogrel. While the US Food and Drug Administration has issued a boxed warning for CYP2C19 poor metabolizers because of potentially reduced efficacy in these patients, results from multivariate analyses suggest that additional factors, including age, sex, obesity, concurrent diseases and drug-drug interactions, may all contribute to the overall between-subject variability in treatment response. However, the extent to which each of these factors contributes to the overall variability, and how they are interrelated, is currently unclear. The objective of this review article is to provide a comprehensive update on the different factors that influence the pharmacokinetics and pharmacodynamics of clopidogrel and how they mechanistically contribute to inter-individual differences in the response to clopidogrel treatment.
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Affiliation(s)
- Xi-Ling Jiang
- Department of Pharmaceutics, Center for Pharmacometrics and Systems Pharmacology, University of Florida at Lake Nona (Orlando), 6550 Sanger Road, Room 467, Orlando, FL, 32827, USA
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20
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Yang Y, Lewis JP, Hulot JS, Scott SA. The pharmacogenetic control of antiplatelet response: candidate genes and CYP2C19. Expert Opin Drug Metab Toxicol 2015; 11:1599-617. [PMID: 26173871 DOI: 10.1517/17425255.2015.1068757] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
INTRODUCTION Aspirin, clopidogrel, prasugrel and ticagrelor are antiplatelet agents for the prevention of ischemic events in patients with acute coronary syndromes (ACS), percutaneous coronary intervention (PCI) and other indications. Variability in response is observed to different degrees with these agents, which can translate to increased risks for adverse cardiovascular events. As such, potential pharmacogenetic determinants of antiplatelet pharmacokinetics, pharmacodynamics and clinical outcomes have been actively studied. AREAS COVERED This article provides an overview of the available antiplatelet pharmacogenetics literature. Evidence supporting the significance of candidate genes and their potential influence on antiplatelet response and clinical outcomes are summarized and evaluated. Additional focus is directed at CYP2C19 and clopidogrel response, including the availability of clinical testing and genotype-directed antiplatelet therapy. EXPERT OPINION The reported aspirin response candidate genes have not been adequately replicated and few candidate genes have thus far been implicated in prasugrel or ticagrelor response. However, abundant data support the clinical validity of CYP2C19 and clopidogrel response variability among ACS/PCI patients. Although limited prospective trial data are available to support the utility of routine CYP2C19 testing, the increased risks for reduced clopidogrel efficacy among ACS/PCI patients that carry CYP2C19 loss-of-function alleles should be considered when genotype results are available.
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Affiliation(s)
- Yao Yang
- a 1 Icahn School of Medicine at Mount Sinai, Department of Genetics and Genomic Sciences , New York, NY, USA +1 212 241 3780 ; +1 212 241 0139 ;
| | - Joshua P Lewis
- b 2 University of Maryland School of Medicine, Division of Endocrinology, Diabetes and Nutrition, and Program for Personalized and Genomic Medicine , Baltimore, MD, USA
| | - Jean-Sébastien Hulot
- c 3 Icahn School of Medicine at Mount Sinai, Cardiovascular Research Center , New York, NY, USA.,d 4 Sorbonne Universités, UPMC Univ Paris 06, INSERM , UMR_S 1166 ICAN, F-75005 Paris, France
| | - Stuart A Scott
- a 1 Icahn School of Medicine at Mount Sinai, Department of Genetics and Genomic Sciences , New York, NY, USA +1 212 241 3780 ; +1 212 241 0139 ;
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21
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Yasmina A, de Boer A, Klungel OH, Deneer VHM. Pharmacogenomics of oral antiplatelet drugs. Pharmacogenomics 2015; 15:509-28. [PMID: 24624918 DOI: 10.2217/pgs.14.16] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
Pharmacogenomics has been implicated in the response variability of antiplatelet drugs in coronary artery disease (CAD), particularly for aspirin and clopidogrel. A large number of studies and several meta-analyses have been published on this topic, but until recently, there have been no clear conclusions and no definite guidelines on the clinical use of pharmacogenetic testing before prescribing antiplatelet drugs for CAD. In this review, the available evidence is summarized. The most consistent results are on clopidogrel, where CYP2C19 loss-of-function alleles are associated with stent thrombosis events. We recommend to genotype for CYP2C19 loss-of-function alleles in patients with CAD who are to undergo percutaneous coronary intervention and stenting, and to adjust the antiplatelet treatment based on the genotyping results.
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Affiliation(s)
- Alfi Yasmina
- Division of Pharmacoepidemiology & Clinical Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, The Netherlands
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22
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Lin R, Zhang L, Zhang P, Zhou L, Liu T, Li Y, Zhang W, Wang W, Zhang J. Influence of CYP2C19 loss-of-function variants on the metabolism of clopidogrel in patients from north-western China. J Clin Pharm Ther 2015; 40:308-14. [PMID: 25810245 DOI: 10.1111/jcpt.12254] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2014] [Accepted: 02/03/2015] [Indexed: 12/20/2022]
Abstract
WHAT IS KNOWN AND OBJECTIVE Variation of the cytochrome P450 2C19 gene coding for the CYP2C19 enzyme has been reported to be associated with clopidogrel response variability. The activity of the CYP2C19 enzyme is genetically influenced by polymorphisms of its gene. METHODS This study was conducted to assess the impact of CYP2C19 polymorphism on the clopidogrel metabolism, indirectly selecting the plasma concentration ratios of clopidogrel to its inactive metabolite SR26334 as an evaluation index. Genotyping and plasma concentration results of 366 patients on clopidogrel maintenance therapy (75 mg daily dose) were analysed in this study. CYP2C19 genotypes were determined by PCR-restriction fragment length polymorphism method. RESULTS AND DISCUSSION As for CYP2C19, patients were classified into three metabolism genotype groups: EM (44·3%), IM (43·4%) and PM (12·3%). The mean plasma concentration ratio of clopidogrel to its inactive metabolite SR26334 for the entire sample was 0·507. The plasma concentration ratios of the 3 metabolism groups were significantly different (P < 0·001). The lowest plasma concentration ratio value was observed for PM patients. WHAT IS NEW AND CONCLUSION Polymorphism of CYP2C19 was significantly associated with plasma concentration ratios of clopidogrel to its inactive metabolite SR26334. Clopidogrel metabolism was regulated by CYP2C19. The *2 and *3 allele carriage were independently associated with the antiplatelet effect of chronic clopidogrel therapy.
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Affiliation(s)
- R Lin
- School of Pharmacology, Health Science Center, Xi'an Jiaotong University, Xi'an, China
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23
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Impact of CYP3A5 polymorphism on platelet reactivity at percutaneous coronary intervention and after 9 months of aspirin and clopidogrel therapy in Japanese patients with coronary artery disease. Eur J Clin Pharmacol 2014; 70:667-73. [DOI: 10.1007/s00228-014-1672-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2013] [Accepted: 03/24/2014] [Indexed: 10/25/2022]
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