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Tan BH, Ahemad N, Pan Y, Ong CE. Mechanism-based inactivation of cytochromes P450: implications in drug interactions and pharmacotherapy. Xenobiotica 2024:1-24. [PMID: 39175333 DOI: 10.1080/00498254.2024.2395557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2024] [Revised: 08/17/2024] [Accepted: 08/19/2024] [Indexed: 08/24/2024]
Abstract
Cytochrome P40 (CYP) enzymes dominate the metabolism of numerous endogenous and xenobiotic substances. While it is commonly believed that CYP-catalysed reactions result in the detoxication of foreign substances, these reactions can also yield reactive intermediates that can bind to cellular macromolecules to cause cytotoxicity or irreversibly inactivate CYPs that create them.Mechanism-based inactivation (MBI) produces either irreversible or quasi-irreversible inactivation and is commonly caused by CYP metabolic bioactivation to an electrophilic reactive intermediate. Many drugs that have been known to cause MBI in CYPs have been discovered as perpetrators in drug-drug interactions throughout the last 20-30 years.This review will highlight the key findings from the recent literature about the mechanisms of CYP enzyme inhibition, with a focus on the broad mechanistic elements of MBI for widely used drugs linked to the phenomenon. There will also be a brief discussion of the clinical or pharmacokinetic consequences of CYP inactivation with regard to drug interaction and toxicity risk.Gaining knowledge about the selective inactivation of CYPs by common therapeutic drugs helps with the assessment of factors that affect the systemic clearance of co-administered drugs and improves comprehension of anticipated interactions with other drugs or xenobiotics.
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Affiliation(s)
- Boon Hooi Tan
- Division of Applied Biomedical Sciences and Biotechnology, International Medical University, Kuala Lumpur, Malaysia
| | - Nafees Ahemad
- School of Pharmacy, Monash University Malaysia, Jalan Lagoon Selatan, Selangor, Malaysia
| | - Yan Pan
- Department of Biomedical Science, University of Nottingham Malaysia Campus, Semenyih, Selangor, Malaysia
| | - Chin Eng Ong
- School of Pharmacy, International Medical University, Kuala Lumpur, Malaysia
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2
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Ding H, Wang Z, Wang J, Yao Y, Zhang C, Lin H, Zhou Y, Gu Z, Lv Q, Li X. Co-Administration of Amiodarone Increases Bleeding by Affecting Rivaroxaban Pharmacokinetics in Patients with Atrial Fibrillation. Pharmaceutics 2024; 16:1006. [PMID: 39204351 PMCID: PMC11359575 DOI: 10.3390/pharmaceutics16081006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2024] [Revised: 07/22/2024] [Accepted: 07/24/2024] [Indexed: 09/04/2024] Open
Abstract
This study aimed to investigate the impact of the drug-drug interaction between rivaroxaban and amiodarone on the clinical outcomes in patients with non-valvular atrial fibrillation (NVAF), focusing on pharmacokinetic and pharmacodynamic (PK/PD) aspects. A prospective study enrolling 174 patients with NVAF who were treated with rivaroxaban was conducted. The patients were divided into two groups based on postoperative antiarrhythmic and anticoagulation strategies: the rivaroxaban group (Control group) and the rivaroxaban plus amiodarone group (Riv/Amio group). The trough plasma concentrations (Ctrough) of rivaroxaban, activated partial thromboplastin time (APTT), prothrombin time (PT), and the clinical outcomes between the two groups were compared. Patients receiving 20 mg of rivaroxaban in the Riv/Amio group had a higher concentration of rivaroxaban Ctrough than those in the Control group (p = 0.009). Furthermore, in patients with moderate to severe renal impairment, rivaroxaban Ctrough was significantly increased in the Riv/Amio group. There was no significant difference in PT and APTT between the two groups. Regarding the clinical outcomes, the combination of rivaroxaban and amiodarone medication was associated with a higher incidence of bleeding events (p = 0.041; HR = 2.83, 95% CI 1.05-7.66) and clinically relevant non-major bleeding (p = 0.021; HR = 3.65, 95% CI 1.21-10.94). Finally, independent risk factors for bleeding in NAVF patients treated with rivaroxaban were identified as its combination with amiodarone (p = 0.044; OR = 2.871, 95% CI 1.028-8.023). The combination of rivaroxaban and amiodarone led to changes in rivaroxaban pharmacokinetics and an elevated risk of bleeding events. Therefore, physicians prescribing rivaroxaban medications should assess the potential bleeding risk associated with the concurrent use of amiodarone, particularly in patients with renal impairment.
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Affiliation(s)
- Huamin Ding
- Department of Pharmacy, Punan Branch of Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200125, China; (H.D.); (J.W.); (C.Z.); (Y.Z.)
| | - Zi Wang
- Department of Pharmacy, Zhongshan Hospital, Fudan University, Shanghai 200032, China; (Z.W.); (Y.Y.)
| | - Jia Wang
- Department of Pharmacy, Punan Branch of Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200125, China; (H.D.); (J.W.); (C.Z.); (Y.Z.)
- Department of Pharmacy, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China;
- College of Clinical Pharmacy, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| | - Yao Yao
- Department of Pharmacy, Zhongshan Hospital, Fudan University, Shanghai 200032, China; (Z.W.); (Y.Y.)
| | - Chi Zhang
- Department of Pharmacy, Punan Branch of Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200125, China; (H.D.); (J.W.); (C.Z.); (Y.Z.)
- Department of Pharmacy, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China;
- College of Clinical Pharmacy, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| | - Houwen Lin
- Department of Pharmacy, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China;
- College of Clinical Pharmacy, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| | - Yong Zhou
- Department of Pharmacy, Punan Branch of Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200125, China; (H.D.); (J.W.); (C.Z.); (Y.Z.)
- Department of Pharmacy, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China;
| | - Zhichun Gu
- Department of Pharmacy, Punan Branch of Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200125, China; (H.D.); (J.W.); (C.Z.); (Y.Z.)
- Department of Pharmacy, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China;
- College of Clinical Pharmacy, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| | - Qianzhou Lv
- Department of Pharmacy, Zhongshan Hospital, Fudan University, Shanghai 200032, China; (Z.W.); (Y.Y.)
| | - Xiaoye Li
- Department of Pharmacy, Zhongshan Hospital, Fudan University, Shanghai 200032, China; (Z.W.); (Y.Y.)
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Limcharoen S, Limprasert S, Boonmuang P, Pongchaidecha M, Suphanklang J, Saelim W, Santimaleeworagun W, Pimsi P. Does amiodarone impact on apixaban levels? The effect of amiodarone on apixaban level among Thai patients with non-valvular Atrial Fibrillation. PLoS One 2024; 19:e0295511. [PMID: 38241292 PMCID: PMC10798445 DOI: 10.1371/journal.pone.0295511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Accepted: 11/24/2023] [Indexed: 01/21/2024] Open
Abstract
BACKGROUND Apixaban and amiodarone are drugs used for non-valvular atrial fibrillation (NVAF) in routine practice. The evidence about apixaban plasma levels in patients who receive apixaban with amiodarone, including bleeding outcomes, has been limited. This study aimed to compare the apixaban plasma levels and bleeding outcomes between apixaban monotherapy and apixaban with amiodarone groups. METHODS This study was a prospective, observational, and single-center research which was conducted from January 2021 to January 2022 in NVAF patients who received apixaban at a tertiary care hospital located in the center of Bangkok, Thailand. RESULTS Thirty-three patients were measured for their median (5th-95th percentile) apixaban plasma levels. The trough of apixaban plasma level (Ctrough) were 108.49 [78.10-171.52] and 162.05 [87.94-292.88] μg/L in the apixaban monotherapy and apixaban with amiodarone groups, respectively (p = 0.028). Additionally, the peaks of apixaban plasma level (Cpeak) were 175.36 [122.94-332.34] and 191 [116.88-488.21] μg/L in the apixaban monotherapy and apixaban with amiodarone groups, respectively (p = 0.375). There was bleeding that occurred in 7 patients (21.21%); 5 patients in the apixaban monotherapy group and 2 patients in the apixaban with amiodarone group, respectively. CONCLUSIONS Amiodarone may increase the peaks and troughs of apixaban plasma levels. The co-administration of apixaban with amiodarone is generally well tolerated. However, the careful observation of bleeding symptoms in individual cases is necessary to ensure safety.
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Affiliation(s)
- Sutee Limcharoen
- Department of Pharmacy, Faculty of Medicine, Vajira Hospital, Bangkok, Thailand
| | - Sarawuth Limprasert
- Division of Cardiology, Department of Medicine, Phramongkutklao Hospital, Bangkok, Thailand
| | - Pornwalai Boonmuang
- Department of Pharmaceutical Care, Faculty of Pharmacy, Silpakorn University, Nakhon Pathom, Thailand
| | - Manat Pongchaidecha
- Department of Pharmaceutical Care, Faculty of Pharmacy, Silpakorn University, Nakhon Pathom, Thailand
| | - Juthathip Suphanklang
- Department of Pharmaceutical Care, Faculty of Pharmacy, Silpakorn University, Nakhon Pathom, Thailand
| | - Weerayuth Saelim
- Department of Pharmaceutical Care, Faculty of Pharmacy, Silpakorn University, Nakhon Pathom, Thailand
| | - Wichai Santimaleeworagun
- Department of Pharmaceutical Care, Faculty of Pharmacy, Silpakorn University, Nakhon Pathom, Thailand
| | - Piyarat Pimsi
- Department of Pharmaceutical Care, Faculty of Pharmacy, Silpakorn University, Nakhon Pathom, Thailand
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Lee J, Beers JL, Geffert RM, Jackson KD. A Review of CYP-Mediated Drug Interactions: Mechanisms and In Vitro Drug-Drug Interaction Assessment. Biomolecules 2024; 14:99. [PMID: 38254699 PMCID: PMC10813492 DOI: 10.3390/biom14010099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 01/02/2024] [Accepted: 01/08/2024] [Indexed: 01/24/2024] Open
Abstract
Drug metabolism is a major determinant of drug concentrations in the body. Drug-drug interactions (DDIs) caused by the co-administration of multiple drugs can lead to alteration in the exposure of the victim drug, raising safety or effectiveness concerns. Assessment of the DDI potential starts with in vitro experiments to determine kinetic parameters and identify risks associated with the use of comedication that can inform future clinical studies. The diverse range of experimental models and techniques has significantly contributed to the examination of potential DDIs. Cytochrome P450 (CYP) enzymes are responsible for the biotransformation of many drugs on the market, making them frequently implicated in drug metabolism and DDIs. Consequently, there has been a growing focus on the assessment of DDI risk for CYPs. This review article provides mechanistic insights underlying CYP inhibition/induction and an overview of the in vitro assessment of CYP-mediated DDIs.
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Affiliation(s)
- Jonghwa Lee
- Division of Pharmacotherapy and Experimental Therapeutics, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA; (J.L.B.); (R.M.G.)
| | | | | | - Klarissa D. Jackson
- Division of Pharmacotherapy and Experimental Therapeutics, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA; (J.L.B.); (R.M.G.)
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Pikuleva IA. Challenges and Opportunities in P450 Research on the Eye. Drug Metab Dispos 2023; 51:1295-1307. [PMID: 36914277 PMCID: PMC10506698 DOI: 10.1124/dmd.122.001072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2022] [Revised: 02/14/2023] [Accepted: 03/06/2023] [Indexed: 03/15/2023] Open
Abstract
Of the 57 cytochrome P450 enzymes found in humans, at least 30 have ocular tissues as an expression site. Yet knowledge of the roles of these P450s in the eye is limited, in part because only very few P450 laboratories expanded their research interests to studies of the eye. Hence the goal of this review is to bring attention of the P450 community to the eye and encourage more ocular studies. This review is also intended to be educational for eye researchers and encourage their collaborations with P450 experts. The review starts with a description of the eye, a fascinating sensory organ, and is followed by sections on ocular P450 localizations, specifics of drug delivery to the eye, and individual P450s, which are grouped and presented based on their substrate preferences. In sections describing individual P450s, available eye-relevant information is summarized and concluded by the suggestions on the opportunities in ocular studies of the discussed enzymes. Potential challenges are addressed as well. The conclusion section outlines several practical suggestions on how to initiate eye-related research. SIGNIFICANCE STATEMENT: This review focuses on the cytochrome P450 enzymes in the eye to encourage their ocular investigations and collaborations between P450 and eye researchers.
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Affiliation(s)
- Irina A Pikuleva
- Department of Ophthalmology and Visual Sciences, Case Western Reserve University, Cleveland, Ohio
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Pan X, Giustarini D, Lang F, Rossi R, Wieder T, Köberle M, Ghashghaeinia M. Desipramine induces eryptosis in human erythrocytes, an effect blunted by nitric oxide donor sodium nitroprusside and N-acetyl-L-cysteine but enhanced by Calcium depletion. Cell Cycle 2023; 22:1827-1853. [PMID: 37522842 PMCID: PMC10599211 DOI: 10.1080/15384101.2023.2234177] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 06/29/2023] [Accepted: 06/30/2023] [Indexed: 08/01/2023] Open
Abstract
Background: Desipramine a representative of tricyclic antidepressants (TCAs) promotes recovery of depressed patients by inhibition of reuptake of neurotransmitters serotonin (SER) and norepinephrine (NE) in the presynaptic membrane by directly blocking their respective transporters SERT and NET.Aims: To study the effect of desipramine on programmed erythrocyte death (eryptosis) and explore the underlying mechanisms.Methods: Phosphatidylserine (PS) exposure on the cell surface as marker of cell death was estimated from annexin-V-binding, cell volume from forward scatter in flow cytometry. Hemolysis was determined photometrically, and intracellular glutathione [GSH]i from high performance liquid chromatography.Results: Desipramine dose-dependently significantly enhanced the percentage of annexin-V-binding cells and didn´t impact glutathione (GSH) synthesis. Desipramine-induced eryptosis was significantly reversed by pre-treatment of erythrocytes with either nitric oxide (NO) donor sodium nitroprusside (SNP) or N-acetyl-L-cysteine (NAC). The highest inhibitory effect was obtained by using both inhibitors together. Calcium (Ca2+) depletion aggravated desipramine-induced eryptosis. Changing the order of treatment, i.e. desipramine first followed by inhibitors, could not influence the inhibitory effect of SNP or NAC.Conclusion: Antidepressants-caused intoxication can be treated by SNP and NAC, respectively. B) Patients with chronic hypocalcemia should not be treated with tricyclic anti-depressants or their dose should be noticeably reduced.
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Affiliation(s)
- Xia Pan
- Physiological Institute, Department of Vegetative and Clinical Physiology, Eberhard Karls University of Tübingen, Tübingen, Germany
| | - Daniela Giustarini
- Department of Biotechnology Chemistry and Pharmacy, University of Siena, Siena, Italy
| | - Florian Lang
- Physiological Institute, Department of Vegetative and Clinical Physiology, Eberhard Karls University of Tübingen, Tübingen, Germany
| | - Ranieri Rossi
- Department of Biotechnology Chemistry and Pharmacy, University of Siena, Siena, Italy
| | - Thomas Wieder
- Physiological Institute, Department of Vegetative and Clinical Physiology, Eberhard Karls University of Tübingen, Tübingen, Germany
| | - Martin Köberle
- Department of Dermatology and Allergology, School of Medicine, Technical University of Munich, München, Germany
| | - Mehrdad Ghashghaeinia
- Physiological Institute, Department of Vegetative and Clinical Physiology, Eberhard Karls University of Tübingen, Tübingen, Germany
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7
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Wang F, Zhou B, Sun H, Wu X. Proarrhythmia associated with antiarrhythmic drugs: a comprehensive disproportionality analysis of the FDA adverse event reporting system. Front Pharmacol 2023; 14:1170039. [PMID: 37251345 PMCID: PMC10213327 DOI: 10.3389/fphar.2023.1170039] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Accepted: 05/04/2023] [Indexed: 05/31/2023] Open
Abstract
Objective: This study aimed to identify the different associations between antiarrhythmic drugs (AADs) and arrhythmias, and to determine whether pharmacokinetic drug interactions involving AADs increase the risk of AAD-related arrhythmias compared to using AADs alone. Materials and methods: The disproportionality analysis of AAD-associated cardiac arrhythmias, including AAD monotherapies and concomitant use of pharmacokinetic interacting agents involving AADs, was conducted by using reporting odds ratio (ROR) and information component (IC) as detection of potential safety signals based on FAERS data from January 2016 to June 2022. We compared the clinical features of patients reported with AAD-associated arrhythmias between fatal and non-fatal groups, and further investigated the onset time (TTO) following different AAD regimens. Results: A total of 11754 AAD-associated cardiac arrhythmias reports were identified, which was more likely to occur in the elderly (52.17%). Significant signals were detected between cardiac arrhythmia and all AAD monotherapies, with ROR ranging from 4.86 with mexiletine to 11.07 with flecainide. Regarding four specific arrhythmias in High Level Term (HLT) level, the AAD monotherapies with the highest ROR were flecainide in cardiac conduction disorders (ROR025 = 21.18), propafenone in rate and rhythm disorders (ROR025 = 10.36), dofetilide in supraventricular arrhythmias (ROR025 = 17.61), and ibutilide in ventricular arrhythmias (ROR025 = 4.91). Dofetilide/ibutilide, ibutilide, mexiletine/ibutilide and dronedarone presented no signal in the above four specific arrhythmias respectively. Compared with amiodarone monotherapy, sofosbuvir plus amiodarone detected the most significantly increased ROR in arrhythmias. Conclusion: The investigation showed the spectrum and risk of AAD-associated cardiac arrhythmias varied among different AAD therapies. The early identification and management of AAD-associated arrhythmias are of great importance in clinical practice.
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Affiliation(s)
- Feifei Wang
- Department of Pharmacy, Hefei BOE Hospital, Hefei, China
| | - Bingfeng Zhou
- Department of Cardiology, Hefei BOE Hospital, Hefei, China
| | - Hongwei Sun
- Department of Cardiology, Hefei BOE Hospital, Hefei, China
| | - Xinan Wu
- Department of Pharmacy, Hefei BOE Hospital, Hefei, China
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8
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Hansten PD, Tan MS, Horn JR, Gomez-Lumbreras A, Villa-Zapata L, Boyce RD, Subbian V, Romero A, Gephart S, Malone DC. Colchicine Drug Interaction Errors and Misunderstandings: Recommendations for Improved Evidence-Based Management. Drug Saf 2023; 46:223-242. [PMID: 36522578 PMCID: PMC9754312 DOI: 10.1007/s40264-022-01265-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/27/2022] [Indexed: 12/23/2022]
Abstract
Colchicine is useful for the prevention and treatment of gout and a variety of other disorders. It is a substrate for CYP3A4 and P-glycoprotein (P-gp), and concomitant administration with CYP3A4/P-gp inhibitors can cause life-threatening drug-drug interactions (DDIs) such as pancytopenia, multiorgan failure, and cardiac arrhythmias. Colchicine can also cause myotoxicity, and coadministration with other myotoxic drugs may increase the risk of myopathy and rhabdomyolysis. Many sources of DDI information including journal publications, product labels, and online sources have errors or misleading statements regarding which drugs interact with colchicine, as well as suboptimal recommendations for managing the DDIs to minimize patient harm. Furthermore, assessment of the clinical importance of specific colchicine DDIs can vary dramatically from one source to another. In this paper we provide an evidence-based evaluation of which drugs can be expected to interact with colchicine, and which drugs have been stated to interact with colchicine but are unlikely to do so. Based on these evaluations we suggest management options for reducing the risk of potentially severe adverse outcomes from colchicine DDIs. The common recommendation to reduce the dose of colchicine when given with CYP3A4/P-gp inhibitors is likely to result in colchicine toxicity in some patients and therapeutic failure in others. A comprehensive evaluation of the almost 100 reported cases of colchicine DDIs is included in table form in the electronic supplementary material. Colchicine is a valuable drug, but improvements in the information about colchicine DDIs are needed in order to minimize the risk of serious adverse outcomes.
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Affiliation(s)
| | - Malinda S Tan
- Department of Pharmacotherapy, College of Pharmacy, University of Utah, Salt Lake City, Utah, USA
| | - John R Horn
- School of Pharmacy, University of Washington, Seattle, WA, USA
| | - Ainhoa Gomez-Lumbreras
- Department of Pharmacotherapy, College of Pharmacy, University of Utah, Salt Lake City, Utah, USA
| | | | - Richard D Boyce
- Department of Biomedical Informatics, School of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Vignesh Subbian
- College of Engineering, University of Arizona, Tucson, AZ, USA
| | - Andrew Romero
- Department of Pharmacy, Tucson Medical Center, Tucson, AZ, USA
| | - Sheila Gephart
- College of Nursing, University of Arizona, Tucson, AZ, USA
| | - Daniel C Malone
- Department of Pharmacotherapy, College of Pharmacy, University of Utah, Salt Lake City, Utah, USA
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Könemann H, Frommeyer G, Zeppenfeld K, Eckardt L. [The new ESC guidelines on the management of ventricular tachyarrhythmias : Implications for daily practice]. Herz 2023; 48:3-14. [PMID: 36441174 DOI: 10.1007/s00059-022-05148-0] [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: 10/19/2022] [Indexed: 11/29/2022]
Abstract
The recently published guidelines of the European Society of Cardiology (ESC) on the management of patients with ventricular arrhythmias and the prevention of sudden cardiac death is an update of the 2015 guideline. For the first time a new section is dedicated to public basic life support. In the acute treatment of ventricular arrhythmias electrical cardioversion is upgraded, and there is a new focus on the management of electrical storm. Recommendations for the comprehensive diagnostic evaluation of patients with first manifestations of ventricular arrhythmias structured according to common clinical scenarios are also new. Both genetic testing and cardiac magnetic resonance imaging are upgraded, not only for diagnostic evaluation but also for risk stratification. In the long-term management, recommendations for pharmacotherapy are aligned with current heart failure guidelines. Catheter ablation has gained relevance not only for recurrent ventricular tachycardia under amiodarone treatment and as an alternative to implantable cardioverter defibrillation (ICD) implantation in selected patients with coronary artery disease but also particularly in the treatment of idiopathic ventricular extrasystoles and tachycardia. The ICD treatment remains an essential component of primary and secondary prevention of sudden cardiac death. Of note, the recommendation on primary preventive ICD treatment for patients with dilated cardiomyopathy and left ventricular ejection fraction (LVEF) ≤ 35% has been downgraded. In addition to LVEF a combination of risk factors and risk calculators is included in the recommendations on primary prophylactic ICD implantation. Overall, due to numerous tables and practical algorithms, the guidelines have become a user-oriented reference book.
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Affiliation(s)
- Hilke Könemann
- Klinik für Kardiologie - Rhythmologie, Universitätsklinikum Münster, Albert-Schweitzer-Campus 1, 48149, Münster, Deutschland.
| | - Gerrit Frommeyer
- Klinik für Kardiologie - Rhythmologie, Universitätsklinikum Münster, Albert-Schweitzer-Campus 1, 48149, Münster, Deutschland
| | - Katja Zeppenfeld
- Department für Kardiologie, Universitätsklinikum Leiden, Leiden, Niederlande
| | - Lars Eckardt
- Klinik für Kardiologie - Rhythmologie, Universitätsklinikum Münster, Albert-Schweitzer-Campus 1, 48149, Münster, Deutschland
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10
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Dixon DL, Patel J, Spence R, Talasaz AH, Abbate A, Wiggins BS. Select drug-drug interactions with colchicine and cardiovascular medications: A review. Am Heart J 2022; 252:42-50. [PMID: 35714680 DOI: 10.1016/j.ahj.2022.06.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Revised: 06/07/2022] [Accepted: 06/08/2022] [Indexed: 06/15/2023]
Abstract
Several randomized clinical trials have demonstrated the clinical utility of colchicine in the prevention and management of various cardiovascular conditions, including secondary prevention of atherosclerotic cardiovascular disease, acute and chronic pericarditis, and atrial fibrillation. As a result, it is reasonable to anticipate increased use of colchicine within the cardiovascular specialty. However, colchicine is metabolized by cytochrome P450 3A4 (CYP3A4) and a substrate of the efflux transporter, P-glycoprotein (P-gp), creating the potential for clinically significant drug-drug interactions (DDIs). Therefore, when colchicine is administered concomitantly with other cardiovascular agents that inhibit CYP3A4 or P-gp, there is an increased risk of significant DDIs, potentially leading to negative sequelae. This article summarizes the evidence supporting the use of colchicine for cardiovascular disease, describes the mechanisms behind DDIs with select cardiovascular medications, and provides suggestions regarding colchicine dosing and management of DDIs to minimize the risk of poor tolerability and colchicine toxicity.
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Affiliation(s)
- Dave L Dixon
- Department of Pharmacotherapy & Outcomes Science, Virginia Commonwealth University, Richmond, VA.
| | - Jaideep Patel
- Ciccarone Center for the Prevention of Cardiovascular Disease, Baltimore, MD; Johns Hopkins Heart Center at Greater Baltimore Medical Center, Baltimore, MD
| | - Rowan Spence
- Department of Pharmacotherapy & Outcomes Science, Virginia Commonwealth University, Richmond, VA
| | - Azita H Talasaz
- Department of Pharmacotherapy & Outcomes Science, Virginia Commonwealth University, Richmond, VA
| | - Antonio Abbate
- Berne Cardiovascular Research Center, University of Virginia, Charlottesville, VA
| | - Barbara S Wiggins
- Department of Pharmacy Services, Medical University of South Carolina, Charleston, SC
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11
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Do Apixaban Plasma Levels Relate to Bleeding? The Clinical Outcomes and Predictive Factors for Bleeding in Patients with Non-Valvular Atrial Fibrillation. Biomedicines 2022; 10:biomedicines10082001. [PMID: 36009548 PMCID: PMC9406092 DOI: 10.3390/biomedicines10082001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 08/11/2022] [Accepted: 08/14/2022] [Indexed: 12/28/2022] Open
Abstract
Apixaban can significantly prevent stroke events in patients with non-valvular atrial fibrillation (NVAF), as can be observed from the large, randomized, controlled trial conducted in the present study. However, the real-world evidence of bleeding events related to the apixaban plasma levels in Asian populations is limited. This study aimed to investigate the apixaban plasma levels and clinical outcomes among NVAF patients receiving apixaban, including determining the risk factors associated with bleeding during routine care. Seventy-one patients were included in the study. The median values were 112.79 (5–95th percentiles: 68.69–207.8) μg/L and 185.62 (5–95th percentiles: 124.06–384.34) μg/L for the apixaban trough (Ctrough) and apixaban peak plasma levels (Cpeak), respectively. Stroke and bleeding were found in 8 (11.27%) and 14 patients (19.72%), respectively. There was no statistical significance for Ctrough and Cpeak in the stroke and non-stroke groups, respectively. The median of Ctrough (139.15 μg/L) in patients with bleeding was higher than that in the non-bleeding group (108.14 μg/L), but there was no statistical significance. However, multivariate analyses showed that bleeding history (odds ratio (OR): 17.62; 95% confidence interval (CI): 3.54–176.64; and p-value = 0.002) and Ctrough (OR: 1.01; 95%: CI 1.00–1.03; and p-value = 0.038) were related to bleeding events. Almost all of the patients presented apixaban plasma levels within the expected range. Interestingly, bleeding events were associated with the troughs of the apixaban plasma levels and bleeding history.
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12
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Madnick DL, Fradley MG. Atrial Fibrillation and Cancer Patients: Mechanisms and Management. Curr Cardiol Rep 2022; 24:1517-1527. [PMID: 35976601 DOI: 10.1007/s11886-022-01769-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/06/2022] [Indexed: 11/03/2022]
Abstract
PURPOSE OF REVIEW Cancer-related mortality has significantly declined over the past several decades as a result of improved screening, diagnostics, and therapeutics. Although cancer patients and survivors are living longer, there is increased risk of both short-term and long-term cardiovascular complications, including arrhythmia. In this review, we highlight the current evidence detailing the connections between atrial fibrillation and cancer, provide insight into the mechanisms driving this relationship, and share practical considerations for the management of atrial fibrillation in cancer patients and cancer survivors. RECENT FINDINGS Atrial fibrillation is an increasingly recognized condition among cancer patients, with epidemiological data showing increased incidence and worse outcomes in patients with cancer. Studies also describe a bidirectional relationship between cancer and atrial fibrillation, attributable in part to shared risk factors but also potentially due to shared biology. Cancer treatment-associated arrhythmia is an active area of investigation, with ongoing research to identify the mechanisms and pathophysiology behind this phenomenon. Furthermore, management of atrial fibrillation in patients with cancer presents unique challenges, particularly in management of anti-coagulation. Cancer patients have increased risk of developing atrial fibrillation due to the shared risk factors and biology of the two conditions. Moreover, various cancer therapeutics are known to be arrhythmogenic; however, mechanisms remain unclear. Further research is needed to better understand the pathophysiology of atrial fibrillation in cancer patient in order to establish prevention and treatment strategies specific to this population.
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Affiliation(s)
- David L Madnick
- Cardio-Oncology Program, Division of Cardiovascular Medicine, Department of Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
| | - Michael G Fradley
- Cardio-Oncology Program, Division of Cardiovascular Medicine, Department of Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA.
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13
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Mar PL, Horbal P, Chung MK, Dukes JW, Ezekowitz M, Lakkireddy D, Lip GYH, Miletello M, Noseworthy PA, Reiffel JA, Tisdale JE, Olshansky B, Gopinathannair R. Drug Interactions Affecting Antiarrhythmic Drug Use. Circ Arrhythm Electrophysiol 2022; 15:e007955. [PMID: 35491871 DOI: 10.1161/circep.121.007955] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Antiarrhythmic drugs (AAD) play an important role in the management of arrhythmias. Drug interactions involving AAD are common in clinical practice. As AADs have a narrow therapeutic window, both pharmacokinetic as well as pharmacodynamic interactions involving AAD can result in serious adverse drug reactions ranging from arrhythmia recurrence, failure of device-based therapy, and heart failure, to death. Pharmacokinetic drug interactions frequently involve the inhibition of key metabolic pathways, resulting in accumulation of a substrate drug. Additionally, over the past 2 decades, the P-gp (permeability glycoprotein) has been increasingly cited as a significant source of drug interactions. Pharmacodynamic drug interactions involving AADs commonly involve additive QT prolongation. Amiodarone, quinidine, and dofetilide are AADs with numerous and clinically significant drug interactions. Recent studies have also demonstrated increased morbidity and mortality with the use of digoxin and other AAD which interact with P-gp. QT prolongation is an important pharmacodynamic interaction involving mainly Vaughan-Williams class III AAD as many commonly used drug classes, such as macrolide antibiotics, fluoroquinolone antibiotics, antipsychotics, and antiemetics prolong the QT interval. Whenever possible, serious drug-drug interactions involving AAD should be avoided. If unavoidable, patients will require closer monitoring and the concomitant use of interacting agents should be minimized. Increasing awareness of drug interactions among clinicians will significantly improve patient safety for patients with arrhythmias.
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Affiliation(s)
- Philip L Mar
- Department of Medicine, Division of Cardiology, St. Louis University, St. Louis, MO (P.L.M., P.H.)
| | - Piotr Horbal
- Department of Medicine, Division of Cardiology, St. Louis University, St. Louis, MO (P.L.M., P.H.)
| | - Mina K Chung
- Department of Cardiovascular Medicine, Heart, Vascular & Thoracic Institute (M.K.C.), Cleveland Clinic, OH
| | | | - Michael Ezekowitz
- Lankenau Heart Institute, Bryn Mawr Hospital & Sidney Kimmel Medical College (M.E.)
| | | | - Gregory Y H Lip
- Liverpool Centre for Cardiovascular Science, University of Liverpool & Liverpool Heart & Chest Hospital, Liverpool, United Kingdom (G.Y.H.L.).,Department of Clinical Medicine, Aalborg, Denmark (G.Y.H.L.)
| | | | - Peter A Noseworthy
- Department of Cardiovascular Diseases, Mayo Clinic, Rochester, MN (P.A.N.)
| | - James A Reiffel
- Division of Cardiology, Department of Medicine, Columbia University, New York, NY (J.A.R.)
| | - James E Tisdale
- College of Pharmacy, Purdue University (J.E.T.).,School of Medicine, Indiana University, Indianapolis (J.E.T.)
| | - Brian Olshansky
- Division of Cardiology, Department of Medicine, University of Iowa, Iowa City (B.O.)
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14
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Dawwas GK, Hennessy S, Brensinger CM, Acton EK, Bilker WB, Chung S, Dublin S, Horn JR, Manis MM, Miano TA, Oslin DW, Pham Nguyen TP, Soprano SE, Wiebe DJ, Leonard CE. Signals of Muscle Relaxant Drug Interactions Associated with Unintentional Traumatic Injury: A Population-Based Screening Study. CNS Drugs 2022; 36:389-400. [PMID: 35249204 PMCID: PMC9375100 DOI: 10.1007/s40263-022-00909-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 02/17/2022] [Indexed: 11/03/2022]
Abstract
BACKGROUND Use of muscle relaxants is rapidly increasing in the USA. Little is understood about the role of drug interactions in the known association between muscle relaxants and unintentional traumatic injury, a clinically important endpoint causing substantial morbidity, disability, and death. OBJECTIVE We examined potential associations between concomitant drugs (i.e., precipitants) taken with muscle relaxants (affected drugs, i.e., objects) and hospital presentation for unintentional traumatic injury. METHODS In a series of self-controlled case series studies, we screened to identify drug interaction signals for muscle relaxant + precipitant pairs and unintentional traumatic injury. We used Optum's de-identified Clinformatics® Data Mart Database, 2000-2019. We included new users of a muscle relaxant, aged 16-90 years, who were dispensed at least one precipitant drug and experienced an unintentional traumatic injury during the observation period. We classified each observation day as precipitant exposed or precipitant unexposed. The outcome was an emergency department or inpatient discharge diagnosis for unintentional traumatic injury. We used conditional Poisson regression to estimate rate ratios adjusting for time-varying confounders and then accounted for multiple estimation via semi-Bayes shrinkage. RESULTS We identified 74,657 people who initiated muscle relaxants and experienced an unintentional traumatic injury, in whom we studied concomitant use of 2543 muscle relaxant + precipitant pairs. After adjusting for time-varying confounders, 16 (0.6%) pairs were statistically significantly and positively associated with injury, and therefore deemed signals of a potential drug interaction. Among signals, semi-Bayes shrunk, confounder-adjusted rate ratios ranged from 1.29 (95% confidence interval 1.04-1.62) for baclofen + sertraline to 2.28 (95% confidence interval 1.14-4.55) for methocarbamol + lamotrigine. CONCLUSIONS Using real-world data, we identified several new signals of potential muscle relaxant drug interactions associated with unintentional traumatic injury. Only one among 16 signals is currently reported in a major drug interaction knowledge base. Future studies should seek to confirm or refute these signals.
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Affiliation(s)
- Ghadeer K. Dawwas
- Center for Pharmacoepidemiology Research and Training, Center for Clinical Epidemiology and Biostatistics, University of Pennsylvania, Philadelphia, PA, USA,Department of Biostatistics, Epidemiology, and Informatics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA,Leonard Davis Institute of Health Economics, University of Pennsylvania, Philadelphia, PA, USA
| | - Sean Hennessy
- Center for Pharmacoepidemiology Research and Training, Center for Clinical Epidemiology and Biostatistics, University of Pennsylvania, Philadelphia, PA, USA,Department of Biostatistics, Epidemiology, and Informatics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA,Leonard Davis Institute of Health Economics, University of Pennsylvania, Philadelphia, PA, USA,Department of Systems Pharmacology and Translational Therapeutics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Colleen M. Brensinger
- Center for Pharmacoepidemiology Research and Training, Center for Clinical Epidemiology and Biostatistics, University of Pennsylvania, Philadelphia, PA, USA,Department of Biostatistics, Epidemiology, and Informatics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Emily K. Acton
- Center for Pharmacoepidemiology Research and Training, Center for Clinical Epidemiology and Biostatistics, University of Pennsylvania, Philadelphia, PA, USA,Department of Biostatistics, Epidemiology, and Informatics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA,Translational Center of Excellence for Neuroepidemiology and Neurology Outcomes Research, Department of Neurology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Warren B. Bilker
- Center for Pharmacoepidemiology Research and Training, Center for Clinical Epidemiology and Biostatistics, University of Pennsylvania, Philadelphia, PA, USA,Department of Psychiatry, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | | | - Sascha Dublin
- Kaiser Permanente Washington Health Research Institute, Seattle, WA, USA,Department of Epidemiology, School of Public Health, University of Washington, Seattle, WA, USA
| | - John R. Horn
- Department of Pharmacy, School of Pharmacy, University of Washington, Seattle, WA, USA
| | - Melanie M. Manis
- Department of Pharmacy Practice, McWhorter School of Pharmacy, Samford University, Birmingham, AL, USA
| | - Todd A. Miano
- Center for Pharmacoepidemiology Research and Training, Center for Clinical Epidemiology and Biostatistics, University of Pennsylvania, Philadelphia, PA, USA,Department of Biostatistics, Epidemiology, and Informatics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - David W. Oslin
- Center for Pharmacoepidemiology Research and Training, Center for Clinical Epidemiology and Biostatistics, University of Pennsylvania, Philadelphia, PA, USA,Department of Psychiatry, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA,Mental Illness Research, Education, and Clinical Center, Corporal Michael J. Crescenz Veterans Administration Medical Center, Philadelphia, PA, USA
| | - Thanh Phuong Pham Nguyen
- Center for Pharmacoepidemiology Research and Training, Center for Clinical Epidemiology and Biostatistics, University of Pennsylvania, Philadelphia, PA, USA,Department of Biostatistics, Epidemiology, and Informatics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA,Translational Center of Excellence for Neuroepidemiology and Neurology Outcomes Research, Department of Neurology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA,Department of Neurology, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - Samantha E. Soprano
- Center for Pharmacoepidemiology Research and Training, Center for Clinical Epidemiology and Biostatistics, University of Pennsylvania, Philadelphia, PA, USA,Department of Biostatistics, Epidemiology, and Informatics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Douglas J. Wiebe
- Department of Biostatistics, Epidemiology, and Informatics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA,Leonard Davis Institute of Health Economics, University of Pennsylvania, Philadelphia, PA, USA,Penn Injury Science Center, University of Pennsylvania, Philadelphia, PA, USA
| | - Charles E. Leonard
- Center for Pharmacoepidemiology Research and Training, Center for Clinical Epidemiology and Biostatistics, University of Pennsylvania, Philadelphia, PA, USA,Department of Biostatistics, Epidemiology, and Informatics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA,Leonard Davis Institute of Health Economics, University of Pennsylvania, Philadelphia, PA, USA
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15
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Khan S, Buğday N, UrRehman A, Ul Haq I, Yaşar S, Özdemir İ. Synthesis, Molecular Docking and Biological Evaluation of 5‐Alkyl (aryl)‐2‐isobutylthiazole Derivatives: As α‐amylase, α‐Glucosidase, and Protein Kinase Inhibitors. Appl Organomet Chem 2022. [DOI: 10.1002/aoc.6641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Siraj Khan
- Department of Pharmacy, Faculty of Biological Sciences Quaid‐i‐Azam University Islamabad Pakistan
| | - Nesrin Buğday
- Department of Chemistry, Faculty of Science and Art İnönü University Malatya Turkey
| | - Asim UrRehman
- Department of Pharmacy, Faculty of Biological Sciences Quaid‐i‐Azam University Islamabad Pakistan
| | - Ihsan Ul Haq
- Department of Pharmacy, Faculty of Biological Sciences Quaid‐i‐Azam University Islamabad Pakistan
| | - Sedat Yaşar
- Department of Chemistry, Faculty of Science and Art İnönü University Malatya Turkey
- Inönü University, Catalysis Research and Application Center Malatya Turkey
- İnönü University, Drug Application and Research Center Malatya Turkey
| | - İsmail Özdemir
- Department of Chemistry, Faculty of Science and Art İnönü University Malatya Turkey
- Inönü University, Catalysis Research and Application Center Malatya Turkey
- İnönü University, Drug Application and Research Center Malatya Turkey
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16
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Is the Mitochondrial Membrane Potential (∆Ψ) Correctly Assessed? Intracellular and Intramitochondrial Modifications of the ∆Ψ Probe, Rhodamine 123. Int J Mol Sci 2022; 23:ijms23010482. [PMID: 35008907 PMCID: PMC8745654 DOI: 10.3390/ijms23010482] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 12/20/2021] [Accepted: 12/21/2021] [Indexed: 11/16/2022] Open
Abstract
The mitochondrial membrane potential (∆Ψ) is the driving force providing the electrical component of the total transmembrane potential of hydrogen ions generated by proton pumps, which is utilized by the ATP synthase. The role of ∆Ψ is not limited to its role in bioenergetics since it takes part in other important intracellular processes, which leads to the mandatory requirement of the homeostasis of ∆Ψ. Conventionally, ∆Ψ in living cells is estimated by the fluorescence of probes such as rhodamine 123, tetramethylrodamine, etc. However, when assessing the fluorescence, the possibility of the intracellular/intramitochondrial modification of the rhodamine molecule is not taken into account. Such changes were revealed in this work, in which a comparison of normal (astrocytic) and tumor (glioma) cells was conducted. Fluorescent microscopy, flow cytometry, and mass spectrometry revealed significant modifications of rhodamine molecules developing over time, which were prevented by amiodarone apparently due to blocking the release of xenobiotics from the cell and their transformation with the participation of cytochrome P450. Obviously, an important role in these processes is played by the increased retention of rhodamines in tumor cells. Our data require careful evaluation of mitochondrial ∆Ψ potential based on the assessment of the fluorescence of the mitochondrial probe.
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17
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Tseng AS, Kowlgi GN, DeSimone CV. Antiarrhythmic Drugs for Atrial Fibrillation in the Outpatient Setting: Common Clinical Scenarios and Pearls for the Primary Care Clinician. Mayo Clin Proc 2021; 96:2230-2242. [PMID: 34119307 DOI: 10.1016/j.mayocp.2021.01.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Revised: 12/24/2020] [Accepted: 01/15/2021] [Indexed: 10/21/2022]
Abstract
The management of atrial fibrillation (AF) in the outpatient setting has become more complex with the utilization of antiarrhythmic drugs (AADs) and increasing complexity of comorbid conditions. The primary care clinician is critically involved in the pharmacologic management of AF, whether it be direct prescription of AADs or managing potential drug-drug interactions with other medications. In this review, we provide instructive, high-yield clinical scenarios and quick clinical references to increase familiarity and comfort with the use of AADs.
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Affiliation(s)
- Andrew S Tseng
- Department of Cardiovascular Medicine, Mayo Clinic College of Medicine, Rochester, MN
| | - Gurukripa N Kowlgi
- Department of Cardiovascular Medicine, Mayo Clinic College of Medicine, Rochester, MN
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18
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Bahçecíoğlu ÖF, Gök S, Durmuş M. Is it safe to use remdesivir in combination with a combined p-glycoprotein and CYP3A4 inhibitor? Eur J Hosp Pharm 2021; 28:e6. [PMID: 33472816 PMCID: PMC7907691 DOI: 10.1136/ejhpharm-2021-002680] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Affiliation(s)
| | - Selim Gök
- Clinical Pharmacy, Inonu University, Malatya, Turkey
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19
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Statins, toxicity, and their adverse effects via oxidative imbalance. Toxicology 2021. [DOI: 10.1016/b978-0-12-819092-0.00026-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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20
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Gulilat M, Keller D, Linton B, Pananos AD, Lizotte D, Dresser GK, Alfonsi J, Tirona RG, Kim RB, Schwarz UI. Drug interactions and pharmacogenetic factors contribute to variation in apixaban concentration in atrial fibrillation patients in routine care. J Thromb Thrombolysis 2020; 49:294-303. [PMID: 31564018 DOI: 10.1007/s11239-019-01962-2] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Factor Xa-inhibitor apixaban is an oral anticoagulant prescribed in atrial fibrillation (AF) for stroke prevention. Its pharmacokinetic profile is known to be affected by cytochrome P450 (CYP)3A metabolism, while it is also a substrate of the efflux transporters ATP-binding cassette (ABC)B1 (P-glycoprotein) and ABCG2 (breast cancer resistance protein, BCRP). In this study, we assessed the impact of interacting medication and pharmacogenetic variation to better explain apixaban concentration differences among 358 Caucasian AF patients. Genotyping (ABCG2, ABCB1, CYP3A4*22, CYP3A5*3) was performed by TaqMan assays, and apixaban quantified by mass spectrometry. The typical patient was on average 77.2 years old, 85.5 kg, and had a serum creatinine of 103.1 µmol/L. Concomitant amiodarone, an antiarrhythmic agent and moderate CYP3A/ABCB1 inhibitor, the impaired-function variant ABCG2 c.421C > A, and sex predicted higher apixaban concentrations when controlling for age, weight and serum creatinine (multivariate regression; R2 = 0.34). Our findings suggest that amiodarone and ABCG2 genotype contribute to interpatient apixaban variability beyond known clinical factors.
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Affiliation(s)
- Markus Gulilat
- Division of Clinical Pharmacology, Department of Medicine, Western University, London, ON, Canada
| | - Denise Keller
- Division of Clinical Pharmacology, Department of Medicine, Western University, London, ON, Canada
| | - Bradley Linton
- Division of Clinical Pharmacology, Department of Medicine, Western University, London, ON, Canada
| | - A Demetri Pananos
- Department of Epidemiology and Biostatistics, Western University, London, ON, Canada
| | - Daniel Lizotte
- Department of Epidemiology and Biostatistics, Western University, London, ON, Canada
| | - George K Dresser
- Division of Clinical Pharmacology, Department of Medicine, Western University, London, ON, Canada.,Department of Physiology and Pharmacology, Western University, London, ON, Canada
| | - Jeffrey Alfonsi
- Division of Clinical Pharmacology, Department of Medicine, Western University, London, ON, Canada
| | - Rommel G Tirona
- Division of Clinical Pharmacology, Department of Medicine, Western University, London, ON, Canada.,Department of Physiology and Pharmacology, Western University, London, ON, Canada
| | - Richard B Kim
- Division of Clinical Pharmacology, Department of Medicine, Western University, London, ON, Canada.,Department of Physiology and Pharmacology, Western University, London, ON, Canada
| | - Ute I Schwarz
- Division of Clinical Pharmacology, Department of Medicine, Western University, London, ON, Canada. .,Department of Physiology and Pharmacology, Western University, London, ON, Canada. .,London Health Sciences Centre, University Hospital, Western University, 339 Windermere Road, London, ON, N6A 5A5, Canada.
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21
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Todd DA, Kellogg JJ, Wallace ED, Khin M, Flores-Bocanegra L, Tanna RS, McIntosh S, Raja HA, Graf TN, Hemby SE, Paine MF, Oberlies NH, Cech NB. Chemical composition and biological effects of kratom (Mitragyna speciosa): In vitro studies with implications for efficacy and drug interactions. Sci Rep 2020; 10:19158. [PMID: 33154449 PMCID: PMC7645423 DOI: 10.1038/s41598-020-76119-w] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Accepted: 10/22/2020] [Indexed: 01/24/2023] Open
Abstract
The safety and efficacy of kratom (Mitragyna speciosa) for treatment of pain is highly controversial. Kratom produces more than 40 structurally related alkaloids, but most studies have focused on just two of these, mitragynine and 7-hydroxymitragynine. Here, we profiled 53 commercial kratom products using untargeted LC-MS metabolomics, revealing two distinct chemotypes that contain different levels of the alkaloid speciofoline. Both chemotypes were confirmed with DNA barcoding to be M. speciosa. To evaluate the biological relevance of variable speciofoline levels in kratom, we compared the opioid receptor binding activity of speciofoline, mitragynine, and 7-hydroxymitragynine. Mitragynine and 7-hydroxymitragynine function as partial agonists of the human µ-opioid receptor, while speciofoline does not exhibit measurable binding affinity at the µ-, δ- or ƙ-opioid receptors. Importantly, mitragynine and 7-hydroxymitragynine demonstrate functional selectivity for G-protein signaling, with no measurable recruitment of β-arrestin. Overall, the study demonstrates the unique binding and functional profiles of the kratom alkaloids, suggesting potential utility for managing pain, but further studies are needed to follow up on these in vitro findings. All three kratom alkaloids tested inhibited select cytochrome P450 enzymes, suggesting a potential risk for adverse interactions when kratom is co-consumed with drugs metabolized by these enzymes.
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Affiliation(s)
- D A Todd
- Department of Chemistry and Biochemistry, The University of North Carolina Greensboro, 435 Sullivan Bldg., 301 McIver St., Greensboro, NC, 27402, USA
| | - J J Kellogg
- Department of Chemistry and Biochemistry, The University of North Carolina Greensboro, 435 Sullivan Bldg., 301 McIver St., Greensboro, NC, 27402, USA
- Department of Veterinary and Biomedical Sciences, Pennsylvania State University, University Park, PA, 16802, USA
| | - E D Wallace
- Department of Chemistry and Biochemistry, The University of North Carolina Greensboro, 435 Sullivan Bldg., 301 McIver St., Greensboro, NC, 27402, USA
- Department of Chemistry, The University of North Carolina Chapel Hill, Chapel Hill, NC, 27599, USA
| | - M Khin
- Department of Chemistry and Biochemistry, The University of North Carolina Greensboro, 435 Sullivan Bldg., 301 McIver St., Greensboro, NC, 27402, USA
| | - L Flores-Bocanegra
- Department of Chemistry and Biochemistry, The University of North Carolina Greensboro, 435 Sullivan Bldg., 301 McIver St., Greensboro, NC, 27402, USA
| | - R S Tanna
- Department of Pharmaceutical Sciences, Washington State University, Spokane, WA, 99202, USA
| | - S McIntosh
- Department of Basic Pharmaceutical Sciences, High Point University, High Point, NC, 27268, USA
| | - H A Raja
- Department of Chemistry and Biochemistry, The University of North Carolina Greensboro, 435 Sullivan Bldg., 301 McIver St., Greensboro, NC, 27402, USA
| | - T N Graf
- Department of Chemistry and Biochemistry, The University of North Carolina Greensboro, 435 Sullivan Bldg., 301 McIver St., Greensboro, NC, 27402, USA
| | - S E Hemby
- Department of Basic Pharmaceutical Sciences, High Point University, High Point, NC, 27268, USA
| | - M F Paine
- Department of Pharmaceutical Sciences, Washington State University, Spokane, WA, 99202, USA
| | - N H Oberlies
- Department of Chemistry and Biochemistry, The University of North Carolina Greensboro, 435 Sullivan Bldg., 301 McIver St., Greensboro, NC, 27402, USA
| | - N B Cech
- Department of Chemistry and Biochemistry, The University of North Carolina Greensboro, 435 Sullivan Bldg., 301 McIver St., Greensboro, NC, 27402, USA.
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22
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Hakkola J, Hukkanen J, Turpeinen M, Pelkonen O. Inhibition and induction of CYP enzymes in humans: an update. Arch Toxicol 2020; 94:3671-3722. [PMID: 33111191 PMCID: PMC7603454 DOI: 10.1007/s00204-020-02936-7] [Citation(s) in RCA: 159] [Impact Index Per Article: 39.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Accepted: 10/12/2020] [Indexed: 12/17/2022]
Abstract
The cytochrome P450 (CYP) enzyme family is the most important enzyme system catalyzing the phase 1 metabolism of pharmaceuticals and other xenobiotics such as herbal remedies and toxic compounds in the environment. The inhibition and induction of CYPs are major mechanisms causing pharmacokinetic drug–drug interactions. This review presents a comprehensive update on the inhibitors and inducers of the specific CYP enzymes in humans. The focus is on the more recent human in vitro and in vivo findings since the publication of our previous review on this topic in 2008. In addition to the general presentation of inhibitory drugs and inducers of human CYP enzymes by drugs, herbal remedies, and toxic compounds, an in-depth view on tyrosine-kinase inhibitors and antiretroviral HIV medications as victims and perpetrators of drug–drug interactions is provided as examples of the current trends in the field. Also, a concise overview of the mechanisms of CYP induction is presented to aid the understanding of the induction phenomena.
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Affiliation(s)
- Jukka Hakkola
- Research Unit of Biomedicine, Pharmacology and Toxicology, University of Oulu, POB 5000, 90014, Oulu, Finland.,Biocenter Oulu, University of Oulu, Oulu, Finland.,Medical Research Center Oulu, University of Oulu and Oulu University Hospital, Oulu, Finland
| | - Janne Hukkanen
- Biocenter Oulu, University of Oulu, Oulu, Finland.,Research Unit of Internal Medicine, Medical Research Center Oulu, University of Oulu and Oulu University Hospital, Oulu, Finland
| | - Miia Turpeinen
- Research Unit of Biomedicine, Pharmacology and Toxicology, University of Oulu, POB 5000, 90014, Oulu, Finland.,Administration Center, Medical Research Center Oulu, University of Oulu and Oulu University Hospital, Oulu, Finland
| | - Olavi Pelkonen
- Research Unit of Biomedicine, Pharmacology and Toxicology, University of Oulu, POB 5000, 90014, Oulu, Finland.
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23
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Tanna RS, Tian DD, Cech NB, Oberlies NH, Rettie AE, Thummel KE, Paine MF. Refined Prediction of Pharmacokinetic Kratom-Drug Interactions: Time-Dependent Inhibition Considerations. J Pharmacol Exp Ther 2020; 376:64-73. [PMID: 33093187 DOI: 10.1124/jpet.120.000270] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Accepted: 10/08/2020] [Indexed: 02/06/2023] Open
Abstract
Preparations from the leaves of the kratom plant (Mitragyna speciosa) are consumed for their opioid-like effects. Several deaths have been associated with kratom used concomitantly with some drugs. Pharmacokinetic interactions are potential underlying mechanisms of these fatalities. Accumulating in vitro evidence has demonstrated select kratom alkaloids, including the abundant indole alkaloid mitragynine, as reversible inhibitors of several cytochromes P450 (CYPs). The objective of this work was to refine the mechanistic understanding of potential kratom-drug interactions by considering both reversible and time-dependent inhibition (TDI) of CYPs in the liver and intestine. Mitragynine was tested against CYP2C9 (diclofenac 4'-hydroxylation), CYP2D6 (dextromethorphan O-demethylation), and CYP3A (midazolam 1'-hydroxylation) activities in human liver microsomes (HLMs) and CYP3A activity in human intestinal microsomes (HIMs). Comparing the absence to presence of NADPH during preincubation of mitragynine with HLMs or HIMs, an ∼7-fold leftward shift in IC50 (∼20 to 3 μM) toward CYP3A resulted, prompting determination of TDI parameters (HLMs: K I , 4.1 ± 0.9 μM; k inact , 0.068 ± 0.01 min-1; HIMs: K I , 4.2 ± 2.5 μM; k inact , 0.079 ± 0.02 min-1). Mitragynine caused no leftward shift in IC50 toward CYP2C9 (∼40 μM) and CYP2D6 (∼1 μM) but was a strong competitive inhibitor of CYP2D6 (K i , 1.17 ± 0.07 μM). Using a recommended mechanistic static model, mitragynine (2-g kratom dose) was predicted to increase dextromethorphan and midazolam area under the plasma concentration-time curve by 1.06- and 5.69-fold, respectively. The predicted midazolam area under the plasma concentration-time curve ratio exceeded the recommended cutoff (1.25), which would have been missed if TDI was not considered. SIGNIFICANCE STATEMENT: Kratom, a botanical natural product increasingly consumed for its opioid-like effects, may precipitate potentially serious pharmacokinetic interactions with drugs. The abundant kratom indole alkaloid mitragynine was shown to be a time-dependent inhibitor of hepatic and intestinal cytochrome P450 3A activity. A mechanistic static model predicted mitragynine to increase systemic exposure to the probe drug substrate midazolam by 5.7-fold, necessitating further evaluation via dynamic models and clinical assessment to advance the understanding of consumer safety associated with kratom use.
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Affiliation(s)
- Rakshit S Tanna
- Department of Pharmaceutical Sciences, College of Pharmacy and Pharmaceutical Sciences, Washington State University, Spokane, Washington (R.S.T., D.-D.T., M.F.P.); Department of Chemistry and Biochemistry, University of North Carolina at Greensboro, Greensboro, North Carolina (N.B.C., N.H.O.); Departments of Medicinal Chemistry (A.E.R.) and Pharmaceutics (K.E.T.), School of Pharmacy, University of Washington, Seattle, Washington; and Center of Excellence for Natural Product Drug Interaction Research, Spokane, Washington (N.B.C., N.H.O., A.E.R., K.E.T., M.F.P.)
| | - Dan-Dan Tian
- Department of Pharmaceutical Sciences, College of Pharmacy and Pharmaceutical Sciences, Washington State University, Spokane, Washington (R.S.T., D.-D.T., M.F.P.); Department of Chemistry and Biochemistry, University of North Carolina at Greensboro, Greensboro, North Carolina (N.B.C., N.H.O.); Departments of Medicinal Chemistry (A.E.R.) and Pharmaceutics (K.E.T.), School of Pharmacy, University of Washington, Seattle, Washington; and Center of Excellence for Natural Product Drug Interaction Research, Spokane, Washington (N.B.C., N.H.O., A.E.R., K.E.T., M.F.P.)
| | - Nadja B Cech
- Department of Pharmaceutical Sciences, College of Pharmacy and Pharmaceutical Sciences, Washington State University, Spokane, Washington (R.S.T., D.-D.T., M.F.P.); Department of Chemistry and Biochemistry, University of North Carolina at Greensboro, Greensboro, North Carolina (N.B.C., N.H.O.); Departments of Medicinal Chemistry (A.E.R.) and Pharmaceutics (K.E.T.), School of Pharmacy, University of Washington, Seattle, Washington; and Center of Excellence for Natural Product Drug Interaction Research, Spokane, Washington (N.B.C., N.H.O., A.E.R., K.E.T., M.F.P.)
| | - Nicholas H Oberlies
- Department of Pharmaceutical Sciences, College of Pharmacy and Pharmaceutical Sciences, Washington State University, Spokane, Washington (R.S.T., D.-D.T., M.F.P.); Department of Chemistry and Biochemistry, University of North Carolina at Greensboro, Greensboro, North Carolina (N.B.C., N.H.O.); Departments of Medicinal Chemistry (A.E.R.) and Pharmaceutics (K.E.T.), School of Pharmacy, University of Washington, Seattle, Washington; and Center of Excellence for Natural Product Drug Interaction Research, Spokane, Washington (N.B.C., N.H.O., A.E.R., K.E.T., M.F.P.)
| | - Allan E Rettie
- Department of Pharmaceutical Sciences, College of Pharmacy and Pharmaceutical Sciences, Washington State University, Spokane, Washington (R.S.T., D.-D.T., M.F.P.); Department of Chemistry and Biochemistry, University of North Carolina at Greensboro, Greensboro, North Carolina (N.B.C., N.H.O.); Departments of Medicinal Chemistry (A.E.R.) and Pharmaceutics (K.E.T.), School of Pharmacy, University of Washington, Seattle, Washington; and Center of Excellence for Natural Product Drug Interaction Research, Spokane, Washington (N.B.C., N.H.O., A.E.R., K.E.T., M.F.P.)
| | - Kenneth E Thummel
- Department of Pharmaceutical Sciences, College of Pharmacy and Pharmaceutical Sciences, Washington State University, Spokane, Washington (R.S.T., D.-D.T., M.F.P.); Department of Chemistry and Biochemistry, University of North Carolina at Greensboro, Greensboro, North Carolina (N.B.C., N.H.O.); Departments of Medicinal Chemistry (A.E.R.) and Pharmaceutics (K.E.T.), School of Pharmacy, University of Washington, Seattle, Washington; and Center of Excellence for Natural Product Drug Interaction Research, Spokane, Washington (N.B.C., N.H.O., A.E.R., K.E.T., M.F.P.)
| | - Mary F Paine
- Department of Pharmaceutical Sciences, College of Pharmacy and Pharmaceutical Sciences, Washington State University, Spokane, Washington (R.S.T., D.-D.T., M.F.P.); Department of Chemistry and Biochemistry, University of North Carolina at Greensboro, Greensboro, North Carolina (N.B.C., N.H.O.); Departments of Medicinal Chemistry (A.E.R.) and Pharmaceutics (K.E.T.), School of Pharmacy, University of Washington, Seattle, Washington; and Center of Excellence for Natural Product Drug Interaction Research, Spokane, Washington (N.B.C., N.H.O., A.E.R., K.E.T., M.F.P.)
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24
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McDonald MG, Tian DD, Thummel KE, Paine MF, Rettie AE. Modulation of Major Human Liver Microsomal Cytochromes P450 by Component Alkaloids of Goldenseal: Time-Dependent Inhibition and Allosteric Effects. Drug Metab Dispos 2020; 48:1018-1027. [PMID: 32591416 DOI: 10.1124/dmd.120.091041] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Accepted: 06/15/2020] [Indexed: 12/14/2022] Open
Abstract
Botanical and other natural products (NPs) are often coconsumed with prescription medications, presenting a risk for cytochrome P450 (P450)-mediated NP-drug interactions. The NP goldenseal (Hydrastis canadensis) has exhibited antimicrobial activities in vitro attributed to isoquinoline alkaloids contained in the plant, primarily berberine, (-)-β-hydrastine, and to a lesser extent, hydrastinine. These alkaloids contain methylenedioxyphenyl rings, structural alerts with potential to inactivate P450s through formation of metabolic intermediate complexes. Time-dependent inhibition experiments were conducted to evaluate their ability to inhibit major P450 activities in human liver microsomes by using a cocktail of isozyme-specific substrate probes. Berberine inhibited CYP2D6 (dextromethorphan O-demethylation; K I = 2.7 μM, kinact = 0.065 minute-1) and CYP3A4/5 (midazolam 1'-hydroxylation; K I = 14.8 μM, kinact = 0.019 minute-1); (-)-β-hydrastine inhibited CYP2C9 (diclofenac 4'-hydroxylation; K I = 49 μM, kinact = 0.036 minute-1), CYP2D6 (K I > 250 μM, kinact > 0.06 minute-1), and CYP3A4/5 (K I = 28 μM, kinact = 0.056 minute-1); and hydrastinine inhibited CYP2D6 (K I = 37 μM, kinact = 0.049 minute-1) activity. Berberine additionally exhibited allosteric effects on midazolam hydroxylation, showing both positive and negative heterotropic cooperativity. Experiments with recombinant isozymes showed that berberine activated midazolam 1'-hydroxylation by CYP3A5, lowering K m(app), but showed mixed inhibition and negative cooperativity toward this reaction when catalyzed by CYP3A4. Berberine inactivated CYP3A4 at a much faster rate than CYP3A5 and was a noncompetitive inhibitor of midazolam 4-hydroxylation by CYP3A4 but a strong mixed inhibitor of the CYP3A5 catalyzed reaction. These complex kinetics should be considered when extrapolating the risk for NP-drug interactions involving goldenseal. SIGNIFICANCE STATEMENT: Robust kinetic parameters were determined for the reversible and time-dependent inhibition of CYP2C9, CYP2D6, and CYP3A4/5 activities in human liver microsomes by major component isoquinoline alkaloids contained in the botanical natural product goldenseal. The alkaloid berberine also exhibited opposing, isozyme-specific allosteric effects on midazolam hydroxylation mediated by recombinant CYP3A4 (inhibition) and CYP3A5 (activation). These data will inform the development of a physiologically based pharmacokinetic model that can be used to predict potential clinically relevant goldenseal-drug interactions.
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Affiliation(s)
- Matthew G McDonald
- Departments of Medicinal Chemistry (M.G.M., A.E.R.) and Pharmaceutics (K.E.T.), School of Pharmacy, University of Washington, Seattle, Washington; Department of Pharmaceutical Sciences (D.-D.T., M.F.P.), College of Pharmacy and Pharmaceutical Sciences, Washington State University, Spokane, Washington; and Center of Excellence for Natural Product Drug Interaction Research, Spokane, Washington (K.E.T., M.F.P., A.E.R.)
| | - Dan-Dan Tian
- Departments of Medicinal Chemistry (M.G.M., A.E.R.) and Pharmaceutics (K.E.T.), School of Pharmacy, University of Washington, Seattle, Washington; Department of Pharmaceutical Sciences (D.-D.T., M.F.P.), College of Pharmacy and Pharmaceutical Sciences, Washington State University, Spokane, Washington; and Center of Excellence for Natural Product Drug Interaction Research, Spokane, Washington (K.E.T., M.F.P., A.E.R.)
| | - Kenneth E Thummel
- Departments of Medicinal Chemistry (M.G.M., A.E.R.) and Pharmaceutics (K.E.T.), School of Pharmacy, University of Washington, Seattle, Washington; Department of Pharmaceutical Sciences (D.-D.T., M.F.P.), College of Pharmacy and Pharmaceutical Sciences, Washington State University, Spokane, Washington; and Center of Excellence for Natural Product Drug Interaction Research, Spokane, Washington (K.E.T., M.F.P., A.E.R.)
| | - Mary F Paine
- Departments of Medicinal Chemistry (M.G.M., A.E.R.) and Pharmaceutics (K.E.T.), School of Pharmacy, University of Washington, Seattle, Washington; Department of Pharmaceutical Sciences (D.-D.T., M.F.P.), College of Pharmacy and Pharmaceutical Sciences, Washington State University, Spokane, Washington; and Center of Excellence for Natural Product Drug Interaction Research, Spokane, Washington (K.E.T., M.F.P., A.E.R.)
| | - Allan E Rettie
- Departments of Medicinal Chemistry (M.G.M., A.E.R.) and Pharmaceutics (K.E.T.), School of Pharmacy, University of Washington, Seattle, Washington; Department of Pharmaceutical Sciences (D.-D.T., M.F.P.), College of Pharmacy and Pharmaceutical Sciences, Washington State University, Spokane, Washington; and Center of Excellence for Natural Product Drug Interaction Research, Spokane, Washington (K.E.T., M.F.P., A.E.R.)
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25
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Kowalski JP, McDonald MG, Pelletier RD, Hanenberg H, Wiek C, Rettie AE. Design and Characterization of the First Selective and Potent Mechanism-Based Inhibitor of Cytochrome P450 4Z1. J Med Chem 2020; 63:4824-4836. [DOI: 10.1021/acs.jmedchem.0c00101] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- John P. Kowalski
- Department of Medicinal Chemistry, School of Pharmacy, University of Washington, Seattle, Washington 98105, United States
| | - Matthew G. McDonald
- Department of Medicinal Chemistry, School of Pharmacy, University of Washington, Seattle, Washington 98105, United States
| | - Robert D. Pelletier
- Department of Medicinal Chemistry, School of Pharmacy, University of Washington, Seattle, Washington 98105, United States
| | - Helmut Hanenberg
- Department of Pediatrics III, University Children’s Hospital Essen, University of Duisburg−Essen, 45122 Essen, Germany
| | - Constanze Wiek
- Department of Otorhinolaryngology and Head/Neck Surgery, Heinrich-Heine University, 40225 Düsseldorf, Germany
| | - Allan E. Rettie
- Department of Medicinal Chemistry, School of Pharmacy, University of Washington, Seattle, Washington 98105, United States
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26
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Máchal J, Hlinomaz O, Kostolanská K, Peš O, Máchalová A, Šplíchal Z, Mot'ovská Z, Juřica J. CYP2C19 and CYP3A4 activity and ADP-induced platelet reactivity in prasugrel- or ticagrelor-treated STEMI patients: monocentric study in PRAGUE-18 trial participants. Xenobiotica 2020; 50:929-938. [PMID: 32065000 DOI: 10.1080/00498254.2020.1731625] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
We assessed the contribution of CYP2C19 and CYP3A4 metabolic activity to the ADP-induced platelet aggregation 1h and 24h after a loading dose of 60 mg prasugrel or 180 mg ticagrelor in patients with ST-elevation myocardial infarction (STEMI). Further, we assessed the contribution of CYP2C19 polymorphisms and medication to the CYP enzymatic activity.Patients with STEMI were randomly assigned to the treatment with prasugrel (n = 51) or ticagrelor (n = 46). Metabolic activity of CYP2C19 and CYP3A4 was assessed by the rate of 5-hydroxylation and sulfoxidation of lansoprazole. Further, patients were genotyped for CYP2C19 *2 and *17 alleles.In prasugrel-treated patients, high ADP-induced platelet reactivity 1h after the loading dose positively correlated with 5OH-lansoprazole/lansoprazole ratio (r = 0.44, p = 0.002), a marker of CYP2C19 metabolic activity, and negatively with lansoprazole-sulfone/lansoprazole ratio, which reflects CYP3A4 metabolic activity (r = -0.35, p = 0.018).CYP2C19 poor metabolizers had lower 5OH-lansoprazole/lansoprazole ratio and higher lansoprazole-sulfone/lansoprazole ratio, but without any effect on the ADP-induced platelet reactivity. The treatment with amiodarone, a CYP3A4 inhibitor, influenced neither the metabolic ratios nor the ADP-induced platelet reactivity.The CYP3A4 and CYP2C19 metabolic activity is associated with ADP-induced platelet reactivity in prasugrel-treated, but not ticagrelor-treated patients with STEMI.
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Affiliation(s)
- J Máchal
- International Clinical Research Center, St. Anne's University Hospital, Brno, Czech Republic.,Department of Pathophysiology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - O Hlinomaz
- International Clinical Research Center, St. Anne's University Hospital, Brno, Czech Republic
| | - K Kostolanská
- Department of Biochemistry, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - O Peš
- Department of Biochemistry, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - A Máchalová
- Department of Pharmacology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Z Šplíchal
- Department of Pathophysiology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Z Mot'ovská
- Cardiocenter, Third Faculty of Medicine, Charles University and University Hospital, Prague, Czech Republic
| | - J Juřica
- Department of Pharmacology, Faculty of Medicine, Masaryk University, Brno, Czech Republic.,Masaryk Memorial Cancer Institute, Brno, Czech Republic
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27
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Yang YH, Chiang HJ, Yip HK, Chen KJ, Chiang JY, Lee MS, Sung PH. Risk of New-Onset Atrial Fibrillation Among Asian Chronic Hepatitis C Virus Carriers: A Nationwide Population-Based Cohort Study. J Am Heart Assoc 2019; 8:e012914. [PMID: 31711382 PMCID: PMC6915266 DOI: 10.1161/jaha.119.012914] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Background Hepatitis C virus (HCV) infection not only links closely to systemic inflammation but also has numerous extrahepatic manifestations. Chronic inflammation also increases the risk of new-onset atrial fibrillation (AF). However, little is known regarding the clinical association between HCV infection and new-onset AF. Methods and Results We conducted a population-based cohort study using Taiwan's National Health Insurance Research Database during 1997 to 2013. A total of 11 771 HCV-infected patients were included in this study, and each of them was matched in a ratio of 1:4. Because of higher mortality among HCV cohorts, we used both Cox proportional hazard regression and competing risk regression models to compute the hazard ratios accompanying 95% CIs after adjustment for relevant confounder. The results demonstrated that the patients with chronic HCV infection had significantly higher incidence rate (332.0 versus 265.8 in 100 000 person-years, P<0.0001) of new-onset AF compared with the non-HCV population. The adjusted hazard ratio of HCV for new-onset AF was 1.32 (95% CI, 1.20-1.44; P<0.0001) and 1.20 (95% CI, 1.10-1.31; P=0.0001) while calculated with Cox proportional hazard regression model and competing risk model, respectively. Intriguingly, we observed that the patients with HCV treated with antiviral agents had significantly lower incidental AF than those without anti-HCV treatment (1.2% versus 6.0%; P<0.0001). Conclusions Chronic HCV infection was associated with an increased risk of incidental AF probably through sharing common pathology of chronic inflammation. Furthermore, a well-designed study is needed to clarify whether anti-HCV therapy can provide protection against the occurrence of AF.
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Affiliation(s)
- Yao-Hsu Yang
- Department of Traditional Chinese Medicine Chang Gung Memorial Hospital, Chiayi Branch Putzu Taiwan.,Health Information and Epidemiology Laboratory of Chang Gung Memorial Hospital, Chiayi Branch Putzu Taiwan.,School of Medicine Chang Gung University Taoyuan Taiwan
| | - Hsin-Ju Chiang
- Department of Obstetrics and Gynecology College of Medicine Kaohsiung Chang Gung Memorial Hospital and Chang Gung University Kaohsiung Taiwan
| | - Hon-Kan Yip
- Division of Cardiology Department of Internal Medicine College of Medicine Kaohsiung Chang Gung Memorial Hospital and Chang Gung University Kaohsiung Taiwan.,Institute for Translational Research in Biomedicine College of Medicine Kaohsiung Chang Gung Memorial Hospital and Chang Gung University Kaohsiung Taiwan.,Center for Shockwave Medicine and Tissue Engineering Kaohsiung Chang Gung Memorial Hospital Kaohsiung Taiwan.,Department of Medical Research China Medical University Hospital China Medical University Taichung Taiwan.,Department of Nursing Asia University Taichung Taiwan
| | - Ko-Jung Chen
- Health Information and Epidemiology Laboratory of Chang Gung Memorial Hospital, Chiayi Branch Putzu Taiwan
| | - John Y Chiang
- Department of Healthcare Administration and Medical Informatics Kaohsiung Medical University Kaohsiung Taiwan.,Department of Computer Science & Engineering National Sun Yat-sen University Kaohsiung Taiwan
| | - Mel S Lee
- Department of Orthopedics College of Medicine Kaohsiung Chang Gung Memorial Hospital and Chang Gung University Kaohsiung Taiwan
| | - Pei-Hsun Sung
- Division of Cardiology Department of Internal Medicine College of Medicine Kaohsiung Chang Gung Memorial Hospital and Chang Gung University Kaohsiung Taiwan.,Center for Shockwave Medicine and Tissue Engineering Kaohsiung Chang Gung Memorial Hospital Kaohsiung Taiwan
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Neag MA, Muntean DM, Nacu A, Catinean A, Farcas A, Vesa S, Bocsan C, Vlase L, Buzoianu AD. Influence of concomitant medication on plasma concentration of amiodarone in patients with atrial fibrillation - a pilot study. Med Pharm Rep 2019; 92:129-133. [PMID: 31086839 PMCID: PMC6510352 DOI: 10.15386/mpr-1130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Revised: 12/12/2018] [Accepted: 12/21/2018] [Indexed: 11/23/2022] Open
Abstract
Background Although amiodarone is a drug with many side effects, it is one of the most commonly used drugs in the treatment and prophylaxis of supraventricular and ventricular arrhythmias. Aim The purpose of this pilot study was to evaluate plasma concentrations of amiodarone in patients with atrial fibrillation (AF) and to identify possible drug-drug interactions between amiodarone and concomitant medications. Method A prospective observational study was conducted in 27 consecutive patients treated with amiodarone from May to July 2017 in a Clinical University Hospital. The patients included met our inclusion criteria. HPLC-UV was the device used to determine the plasma concentration of amiodarone. Results Only 51.8% of the patients had amiodarone plasma concentration within therapeutic interval (500–2500 ng/ml). The drugs associated to amiodarone in the therapeutic plan were diuretics, beta blockers, statins, antiplatelets, fluoroquinolones, non-steroidal anti-inflammatory drugs. We observed a statistically significant difference between the plasmatic concentrations of amiodarone in patients treated with furosemide vs. patients concomitantly treated with other drugs. Interactions between other mentioned drugs and amiodarone were not registered. We can report an underuse of amiodarone for more than 50% of the patients. Also, we found a significant interaction between furosemide and amiodarone, most likely through the interaction with MDR. Conclusion Furosemide may influence the pharmacokinetics of P-gp-interfering drugs. However, the relevance of these findings needs to be confirmed and further research is needed to characterize the interaction between amiodarone and furosemide.
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Affiliation(s)
- Maria Adriana Neag
- Pharmacology, Toxicology and Clinical Pharmacology Department, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Dana Maria Muntean
- Pharmaceutical Technology and Biopharmaceutics Department, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Alexandra Nacu
- Pharmacology, Toxicology and Clinical Pharmacology Department, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Adrian Catinean
- Internal Medicine Department, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Anca Farcas
- Internal Medicine Department, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Stefan Vesa
- Pharmacology, Toxicology and Clinical Pharmacology Department, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Corina Bocsan
- Pharmacology, Toxicology and Clinical Pharmacology Department, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Laurian Vlase
- Pharmaceutical Technology and Biopharmaceutics Department, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Anca Dana Buzoianu
- Pharmacology, Toxicology and Clinical Pharmacology Department, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
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30
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Vrkić Kirhmajer M, Macolić Šarinić V, Šimičević L, Ladić I, Putarek K, Banfić L, Božina N. Rosuvastatin-Induced Rhabdomyolysis - Possible Role of Ticagrelor and Patients' Pharmacogenetic Profile. Basic Clin Pharmacol Toxicol 2018; 123:509-518. [PMID: 29734517 DOI: 10.1111/bcpt.13035] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Accepted: 04/23/2018] [Indexed: 01/24/2023]
Abstract
Up to the beginning of 2018, a total of eight cases describing rare but clinically important drug interactions between rosuvastatin and ticagrelor which resulted in rhabdomyolysis have been noted in the Global World Health Organization (WHO) adverse drug reaction (ADR) database (VigiBase) as well as in available literature. There are several possible factors which could contribute to the onset of rhabdomyolysis: old age, initially excessive rosuvastatin dose, drug-drug interactions (DDI) on metabolic enzymes (CYPs and UGTs) and drug transporter levels (ABCB1, ABCG2, OATP1B1) and pharmacogenetic predisposition. We reviewed all available cases plus the case of an 87-year-old female Croatian/Caucasian patient who developed rhabdomyolysis following concomitant treatment with rosuvastatin and ticagrelor. The results of the pharmacogenetic analysis indicated that the patient was a carrier of inactivating alleles CYP2C9*1/*3, CYP3A4*1/*22, CYP3A5*3/*3, CYP2D6*1/*4, UGT1A1*28/*28, UGT2B7 -161C/T, ABCB1 3435C/T and ABCB1 1237C/T which could have added to the interactions not only between ticagrelor and rosuvastatin but also other concomitantly prescribed medicines, such as amiodarone and proton pump inhibitors. In this case report, the possible multifactorial causes for rhabdomyolysis following concomitant use of rosuvastatin and ticagrelor such as old age, polypharmacy, renal impairment, along with pharmacogenetics will be discussed.
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Affiliation(s)
- Majda Vrkić Kirhmajer
- Department of Cardiovascular Diseases, University of Zagreb School of Medicine, University Hospital Centre Zagreb, Zagreb, Croatia
| | | | - Livija Šimičević
- Department of Laboratory Diagnostics, University Hospital Centre Zagreb, Zagreb, Croatia
| | - Iva Ladić
- Department of Internal Medicine, Bjelovar General Hospital, Bjelovar, Croatia
| | - Krešimir Putarek
- Department of Cardiovascular Diseases, University Hospital Centre Zagreb, Zagreb, Croatia
| | - Ljiljana Banfić
- Department of Cardiovascular Diseases, University of Zagreb School of Medicine, University Hospital Centre Zagreb, Zagreb, Croatia
| | - Nada Božina
- Department of Pharmacology, University of Zagreb School of Medicine, University Hospital Centre Zagreb, Zagreb, Croatia
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31
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Boriani G, Corradini P, Cuneo A, Falanga A, Foà R, Gaidano G, Ghia PP, Martelli M, Marasca R, Massaia M, Mauro FR, Minotti G, Molica S, Montillo M, Pinto A, Tedeschi A, Vitolo U, Zinzani PL. Practical management of ibrutinib in the real life: Focus on atrial fibrillation and bleeding. Hematol Oncol 2018; 36:624-632. [PMID: 29512173 DOI: 10.1002/hon.2503] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2017] [Revised: 01/23/2018] [Accepted: 01/24/2018] [Indexed: 12/15/2022]
Abstract
The Bruton tyrosine kinase inhibitor ibrutinib (IB) has attained an important role in the treatment of patients with chronic lymphocytic leukaemia, mantle cell lymphoma, and Waldenström macroglobulinemia, significantly improving clinical outcomes. However, IB therapy has been associated with an increased risk of atrial fibrillation (AF) and bleeding. We report on the expert opinion that a group of Italian haematologists, cardiologists, and pharmacologists jointly released to improve the practical management of patients at risk for AF and bleeding during treatment with IB. A proper pretreatment assessment to identify patients who are at a higher risk, careful choice of concomitant drugs, regular monitoring, and multispecialist approach were characterized as the main principles of clinical management of these patients. For patients developing AF, anticoagulant and antiarrhythmic therapy must be guided by considerations about efficacy, safety, and risk of pharmacokinetic interactions with IB. For patients experiencing bleeding or requiring procedures that increase the risk of bleeding, considerations about platelet turnover, IB-related platelet dysfunctions, and bleeding worsening by concomitant anticoagulants or antiplatelet agents provide clues to manage bleeding. Overall, AF and bleeding are manageable clinical events in patients receiving IB, not requiring drug interruption in most cases. Preexisting AF should not represent an absolute contraindication to IB therapy. For each patient candidate for IB, strategies of risk assessment and mitigation may allow to exploit the life-saving effects of in chronic lymphocytic leukaemia and mantle cell lymphoma.
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Affiliation(s)
- Giuseppe Boriani
- Cardiology Division, Department of Diagnostics, Clinical and Public Health Medicine, University of Modena and Reggio Emilia, Policlinico di Modena, Modena, Italy
| | - Paolo Corradini
- Dipartimento di Oncologia ed Emato-oncologia, Universita' degli Studi di Milano, Milan, Italy
| | - Antonio Cuneo
- Hematology Section, Department of Medical Sciences, University of Ferrara, Ferrara, Italy
| | - Anna Falanga
- Department of Immunohematology and Transfusion Medicine, "Papa Giovanni XXIII" Hospital, Bergamo, Italy
| | - Robin Foà
- Hematology, Department of Cellular Biotechnologies and Hematology, Sapienza University, Policlinico Umberto I, Rome, Italy
| | - Gianluca Gaidano
- Division of Hematology, Department of Translational Medicine, University of Eastern Piedmont, Novara, Italy
| | - Paolo Prospero Ghia
- Università Vita-Salute San Raffaele and IRCCS Istituto Scientifico San Raffaele, Milano, Italy
| | - Maurizio Martelli
- Hematology, Department of Cellular Biotechnologies and Hematology, Sapienza University, Policlinico Umberto I, Rome, Italy
| | - Roberto Marasca
- Hematology Division, Department of Medical and Surgical Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | - Massimo Massaia
- Division of Hematology, Department of Molecular Biotechnologies and Health Sciences, University of Torino, Torino, Italy
| | - Francesca Romana Mauro
- Hematology, Department of Cellular Biotechnologies and Hematology, Sapienza University, Policlinico Umberto I, Rome, Italy
| | - Giorgio Minotti
- Department of Medicine and Center for Drug Sciences, University Campus Bio-Medico, Rome, Italy
| | - Stefano Molica
- Department of Hematology-Oncology, Azienda Ospedaliera Pugliese-Ciaccio, Catanzaro, Italy
| | - Marco Montillo
- Department of Hematology, Niguarda Cancer Center, Niguarda Hospital, Milan, Italy
| | - Antonio Pinto
- Hematology-Oncology and Stem Cell Transplantation Unit, National Cancer Institute, Fondazione "G. Pascale" IRCCS, Naples, Italy
| | | | - Umberto Vitolo
- Città della Salute e della Scienza Hospital and University, on behalf of FIL, Turin, Italy
| | - Pier Luigi Zinzani
- Institute of Hematology and Medical Oncology "Seragnoli", University of Bologna, Bologna, Italy
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Poon M, Moffett BS, Yee DL. Warfarin-Rifampin Drug Interaction in a Pediatric Patient. J Pediatr Pharmacol Ther 2017; 22:375-377. [PMID: 29042840 DOI: 10.5863/1551-6776-22.5.375] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Rifampin has been documented to significantly attenuate the effect of warfarin in adult patients. No data have been presented on the use of rifampin and warfarin in a pediatric patient. We report an extreme case of increased warfarin metabolism in a pediatric patient who was concomitantly receiving rifampin, despite receiving other medications that significantly decrease warfarin metabolism. The inhibitory effect of rifampin on warfarin therapy may be amplified in pediatric patients.
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Affiliation(s)
- Michael Poon
- Department of Pharmacy (MP, BSM), Texas Children's Hospital, Houston, Texas, and Department of Pediatrics (BSM, DLY), Baylor College of Medicine, Houston, Texas
| | - Brady S Moffett
- Department of Pharmacy (MP, BSM), Texas Children's Hospital, Houston, Texas, and Department of Pediatrics (BSM, DLY), Baylor College of Medicine, Houston, Texas
| | - Donald L Yee
- Department of Pharmacy (MP, BSM), Texas Children's Hospital, Houston, Texas, and Department of Pediatrics (BSM, DLY), Baylor College of Medicine, Houston, Texas
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Cheong EJY, Goh JJN, Hong Y, Venkatesan G, Liu Y, Chiu GNC, Kojodjojo P, Chan ECY. Application of Static Modeling --in the Prediction of In Vivo Drug-Drug Interactions between Rivaroxaban and Antiarrhythmic Agents Based on In Vitro Inhibition Studies. Drug Metab Dispos 2017; 45:260-268. [PMID: 28053220 DOI: 10.1124/dmd.116.073890] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Accepted: 12/21/2016] [Indexed: 11/22/2022] Open
Abstract
Rivaroxaban, a direct Factor Xa inhibitor, is indicated for stroke prevention in nonvalvular atrial fibrillation (AF). Studies have revealed that the clearance of rivaroxaban is largely attributed to CYP3A4, CYP2J2 metabolism, and P-glycoprotein (P-gp) efflux pathways. Amiodarone and dronedarone are antiarrhythmic agents employed in AF management. Amiodarone, dronedarone, and their major metabolites, N-desethylamiodarone (NDEA) and N-desbutyldronedarone (NDBD), demonstrate inhibitory effects on CYP3A4 and CYP2J2 with U.S. Food and Drug Administration-recommended probe substrates. In addition, both amiodarone and dronedarone are known P-gp inhibitors. Hence, the concomitant administration of these antiarrhythmic agents has the potential to augment the systemic exposure of rivaroxaban through simultaneous impairment of its clearance pathways. Currently, however, clinical data on the extent of these postulated drug-drug interactions are lacking. In this study, in vitro inhibition assays using rivaroxaban as the probe substrate demonstrated that both dronedarone and NDBD produced reversible inhibition as well as irreversible mechanism-based inactivation of CYP3A4- and CYP2J2-mediated metabolism of rivaroxaban. However, amiodarone and NDEA were observed to cause reversible inhibition as well as mechanism-based inactivation of CYP3A4 but not CYP2J2. In addition, amiodarone, NDEA, and dronedarone, but not NDBD, were determined to inhibit P-gp-mediated rivaroxaban transport. The in vitro inhibition parameters were fitted into a mechanistic static model, which predicted a 37% and 31% increase in rivaroxaban exposure due to the inhibition of hepatic and gut metabolism by amiodarone and dronedarone, respectively. A separate model quantifying the inhibition of P-gp-mediated efflux by amiodarone or dronedarone projected a 9% increase in rivaroxaban exposure.
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Affiliation(s)
- Eleanor Jing Yi Cheong
- Department of Pharmacy, Faculty of Science, National University of Singapore, Singapore (E.J.Y.C., J.J.N.G., Y.H., G.V., Y.L., G.N.C.C., E.C.Y.C.); Department of Chemistry, Faculty of Science, Hong Kong Baptist University, Ho Sin Hang Campus, Hong Kong (Y.H.); Department of Cardiology and Cardiac Electrophysiology, National University Heart Centre, Singapore (P.K.); and Singapore Institute for Clinical Sciences, Brenner Centre for Molecular Medicine, Singapore (E.C.Y.C.)
| | - Janice Jia Ni Goh
- Department of Pharmacy, Faculty of Science, National University of Singapore, Singapore (E.J.Y.C., J.J.N.G., Y.H., G.V., Y.L., G.N.C.C., E.C.Y.C.); Department of Chemistry, Faculty of Science, Hong Kong Baptist University, Ho Sin Hang Campus, Hong Kong (Y.H.); Department of Cardiology and Cardiac Electrophysiology, National University Heart Centre, Singapore (P.K.); and Singapore Institute for Clinical Sciences, Brenner Centre for Molecular Medicine, Singapore (E.C.Y.C.)
| | - Yanjun Hong
- Department of Pharmacy, Faculty of Science, National University of Singapore, Singapore (E.J.Y.C., J.J.N.G., Y.H., G.V., Y.L., G.N.C.C., E.C.Y.C.); Department of Chemistry, Faculty of Science, Hong Kong Baptist University, Ho Sin Hang Campus, Hong Kong (Y.H.); Department of Cardiology and Cardiac Electrophysiology, National University Heart Centre, Singapore (P.K.); and Singapore Institute for Clinical Sciences, Brenner Centre for Molecular Medicine, Singapore (E.C.Y.C.)
| | - Gopalakrishnan Venkatesan
- Department of Pharmacy, Faculty of Science, National University of Singapore, Singapore (E.J.Y.C., J.J.N.G., Y.H., G.V., Y.L., G.N.C.C., E.C.Y.C.); Department of Chemistry, Faculty of Science, Hong Kong Baptist University, Ho Sin Hang Campus, Hong Kong (Y.H.); Department of Cardiology and Cardiac Electrophysiology, National University Heart Centre, Singapore (P.K.); and Singapore Institute for Clinical Sciences, Brenner Centre for Molecular Medicine, Singapore (E.C.Y.C.)
| | - Yuanjie Liu
- Department of Pharmacy, Faculty of Science, National University of Singapore, Singapore (E.J.Y.C., J.J.N.G., Y.H., G.V., Y.L., G.N.C.C., E.C.Y.C.); Department of Chemistry, Faculty of Science, Hong Kong Baptist University, Ho Sin Hang Campus, Hong Kong (Y.H.); Department of Cardiology and Cardiac Electrophysiology, National University Heart Centre, Singapore (P.K.); and Singapore Institute for Clinical Sciences, Brenner Centre for Molecular Medicine, Singapore (E.C.Y.C.)
| | - Gigi Ngar Chee Chiu
- Department of Pharmacy, Faculty of Science, National University of Singapore, Singapore (E.J.Y.C., J.J.N.G., Y.H., G.V., Y.L., G.N.C.C., E.C.Y.C.); Department of Chemistry, Faculty of Science, Hong Kong Baptist University, Ho Sin Hang Campus, Hong Kong (Y.H.); Department of Cardiology and Cardiac Electrophysiology, National University Heart Centre, Singapore (P.K.); and Singapore Institute for Clinical Sciences, Brenner Centre for Molecular Medicine, Singapore (E.C.Y.C.)
| | - Pipin Kojodjojo
- Department of Pharmacy, Faculty of Science, National University of Singapore, Singapore (E.J.Y.C., J.J.N.G., Y.H., G.V., Y.L., G.N.C.C., E.C.Y.C.); Department of Chemistry, Faculty of Science, Hong Kong Baptist University, Ho Sin Hang Campus, Hong Kong (Y.H.); Department of Cardiology and Cardiac Electrophysiology, National University Heart Centre, Singapore (P.K.); and Singapore Institute for Clinical Sciences, Brenner Centre for Molecular Medicine, Singapore (E.C.Y.C.)
| | - Eric Chun Yong Chan
- Department of Pharmacy, Faculty of Science, National University of Singapore, Singapore (E.J.Y.C., J.J.N.G., Y.H., G.V., Y.L., G.N.C.C., E.C.Y.C.); Department of Chemistry, Faculty of Science, Hong Kong Baptist University, Ho Sin Hang Campus, Hong Kong (Y.H.); Department of Cardiology and Cardiac Electrophysiology, National University Heart Centre, Singapore (P.K.); and Singapore Institute for Clinical Sciences, Brenner Centre for Molecular Medicine, Singapore (E.C.Y.C.)
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