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Catić‐Đorđević A, Stefanović N, Pavlović I, Pavlović D, Živanović S, Kundalić A, Veličković‐Radovanović R, Mitić B. Utility of salivary mycophenolic acid concentration monitoring: Modeling and Monte Carlo validation approach. Pharmacol Res Perspect 2022; 10:e01034. [PMID: 36440680 PMCID: PMC9703583 DOI: 10.1002/prp2.1034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 10/20/2022] [Accepted: 11/06/2022] [Indexed: 11/29/2022] Open
Abstract
The results of the previous studies demonstrated an association between mycophenolic acid (MPA) exposure, serum albumin level (ALB), and adverse effects in kidney transplant patients. The aim was the identification of mathematical correlation and association between both, total and unbound MPA concentration in relation to ALB, body mass (BM), age and estimated glomerular filtration rate (eGFR) in stable kidney transplant recipients. Furthermore, investigation was conducted with the aim to clarify the role of salivary concentration (CSAL ) of MPA in adverse effect profile. In order to analyze the association between total and salivary concentration of MPA in relation to ALB, BM, age and eGFR, a least squares method for determining the correlation between these parameters was performed. In addition, derived mathematical model based on experimental data can also be performed and simulated through the Monte Carlo (MC) approach. Adverse effects were grouped according to the nature of symptoms and scored by a previously published validated system. Numerically calculated values of CSAL from the models [CSAL = f(ALB, BM, age, eGFR, CP ) = a00 + a10 *(ALB, BM, age, eGFR) + a01 *CP ] were then compared with those from validation set of patients, where the best fitting model was for ALB [CSAL = 54.96-1.64*ALB +13.4*CP ]. Adverse effects estimation showed the difference in esthetic score, positively correlated with CSAL in the lower ALB group (145.41 ± 219.02 vs. 354.08 ± 262.19; with statistical significance p = .014) and almost significant for gastrointestinal score (167.69 ± 174.79 vs. 347.55 ± 320.95; p = .247). The study showed that CSAL MPA may contribute to management of adverse effects, but these findings require confirmation of clinical utility.
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Affiliation(s)
| | - Nikola Stefanović
- Faculty of Medicine, Department of PharmacyUniversity of NisNisSerbia
| | - Ivan Pavlović
- Faculty of Mechanical EngineeringUniversity of NisNisSerbia
| | - Dragana Pavlović
- Faculty of Medicine, Department of PharmacyUniversity of NisNisSerbia
| | - Slavoljub Živanović
- Faculty of Medicine, Research Center for BiomedicineUniversity of NisNisSerbia
| | - Ana Kundalić
- Faculty of Medicine, Department of PharmacyUniversity of NisNisSerbia
| | | | - Branka Mitić
- Faculty of MedicineUniversity of NisNisSerbia
- Clinic of NephrologyUniversity Clinical Center NisNisSerbia
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2
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Tornatore KM, Meaney CJ, Attwood K, Brazeau DA, Wilding GE, Consiglio JD, Gundroo A, Chang SS, Gray V, Cooper LM, Venuto RC. Race and sex associations with tacrolimus pharmacokinetics in stable kidney transplant recipients. Pharmacotherapy 2022; 42:94-105. [PMID: 35103348 PMCID: PMC9020367 DOI: 10.1002/phar.2656] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 10/27/2021] [Accepted: 10/28/2021] [Indexed: 11/22/2022]
Abstract
Study Objective This study investigated race and sex differences in tacrolimus pharmacokinetics and pharmacodynamics in stable kidney transplant recipients. Design and Setting A cross‐sectional, open‐label, single center, 12‐h pharmacokinetic‐pharmacodynamic study was conducted. Tacrolimus pharmacokinetic parameters included area under the concentration‐time curve (AUC0–12), AUC0–4, 12‐h troughs (C12 h), maximum concentrations (Cmax), oral clearance (Cl), with dose‐normalized AUC0–12, troughs, and Cmax with standardized adverse effect scores. Statistical models were used to analyze end points with individual covariate‐adjustment including clinical factors, genotypic variants CYP3A5*3, CYP3A5*6, CYP3A5*7(CYP3A5*3*6*7) metabolic composite, and ATP binding cassette gene subfamily B member 1 (ABCB1) polymorphisms. Patients 65 stable, female and male, Black and White kidney transplant recipients receiving tacrolimus and mycophenolic acid ≥6 months post‐transplant were evaluated. Measurements and Main Results Black recipients exhibited higher tacrolimus AUC0–12 (Race: p = 0.005), lower AUC* (Race: p < 0.001; Race × Sex: p = 0.068), and higher Cl (Race: p < 0.001; Sex: p = 0.066). Greater cumulative (Sex: p < 0.001; Race × Sex: p = 0.014), neurologic (Sex: p = 0.021; Race × Sex: p = 0.005), and aesthetic (Sex: p = 0.002) adverse effects were found in females, with highest scores in Black women. In 84.8% of Black and 68.8% of White patients, the target AUC0–12 was achieved (p = 0.027). In 31.3% of White and 9.1% of Black recipients, AUC0–12 was <100 ng‧h/ml despite tacrolimus troughs in the target range (p = 0.027). The novel CYP3A5*3*6*7 metabolic composite was the significant covariate accounting for 15%–19% of tacrolimus variability in dose (p = 0.002); AUC0–12 h* (p < 0.001), and Cl (p < 0.001). Conclusions Tacrolimus pharmacokinetics and adverse effects were different among stable kidney transplant recipient groups based upon race and sex with interpatient variability associated with the CYP3A5*3*6*7 metabolic composite. More cumulative, neurologic, and aesthetic adverse effects were noted among females. Tacrolimus regimens that consider race and sex may reduce adverse effects and enhance allograft outcomes by facilitating more patients to achieve the targeted AUC0–12 h.
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Affiliation(s)
- Kathleen M. Tornatore
- Immunosuppressive Pharmacology Research Program Translational Pharmacology Research Core NYS Center of Excellence in Bioinformatics & Life Sciences Buffalo New York USA
- Pharmacy School of Pharmacy and Pharmaceutical Sciences Buffalo New York USA
- Nephrology Division Medicine School of Medicine and Biomedical Sciences Buffalo New York USA
| | - Calvin J. Meaney
- Immunosuppressive Pharmacology Research Program Translational Pharmacology Research Core NYS Center of Excellence in Bioinformatics & Life Sciences Buffalo New York USA
- Pharmacy School of Pharmacy and Pharmaceutical Sciences Buffalo New York USA
| | - Kristopher Attwood
- Biostatistics School of Public Health and Health Professions Buffalo New York USA
| | - Daniel A. Brazeau
- Department of Biomedical Sciences Joan C Edwards School of Medicine Marshall University Huntington West Virginia USA
| | - Gregory E. Wilding
- Biostatistics School of Public Health and Health Professions Buffalo New York USA
| | - Joseph D. Consiglio
- Biostatistics School of Public Health and Health Professions Buffalo New York USA
| | - Aijaz Gundroo
- Nephrology Division Medicine School of Medicine and Biomedical Sciences Buffalo New York USA
- Erie County Medical Center Buffalo New York USA
| | - Shirley S. Chang
- Nephrology Division Medicine School of Medicine and Biomedical Sciences Buffalo New York USA
- Erie County Medical Center Buffalo New York USA
| | - Vanessa Gray
- Nephrology Division Medicine School of Medicine and Biomedical Sciences Buffalo New York USA
| | - Louise M. Cooper
- Immunosuppressive Pharmacology Research Program Translational Pharmacology Research Core NYS Center of Excellence in Bioinformatics & Life Sciences Buffalo New York USA
- Pharmacy School of Pharmacy and Pharmaceutical Sciences Buffalo New York USA
| | - Rocco C. Venuto
- Nephrology Division Medicine School of Medicine and Biomedical Sciences Buffalo New York USA
- Erie County Medical Center Buffalo New York USA
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3
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Lichvar A, Chandran MM, Do V, Rendulic T, Szczepanik A, Pierce D, Park JM. Entrustable professional activities for pharmacy students: A primer for solid organ transplant preceptors. Am J Health Syst Pharm 2021; 78:zxab320. [PMID: 34350946 DOI: 10.1093/ajhp/zxab320] [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: 08/03/2021] [Indexed: 11/14/2022] Open
Abstract
DISCLAIMER In an effort to expedite the publication of articles , AJHP is posting manuscripts online as soon as possible after acceptance. Accepted manuscripts have been peer-reviewed and copyedited, but are posted online before technical formatting and author proofing. These manuscripts are not the final version of record and will be replaced with the final article (formatted per AJHP style and proofed by the authors) at a later time. PURPOSE The role of a solid organ transplant pharmacist is multifaceted and translates to diverse experiential and elective learning experiences that can be provided to pharmacy learners. Here we provide a guide to integrating pharmacy students into patient care and other pharmacist activities in solid organ transplantation. SUMMARY Thoughtful incorporation of learners into clinical practice and clinical research creates a positive learning environment for pharmacy students that can foster the development of core skills necessary for students to become "practice-ready" and "team-ready" pharmacy graduates and can equip them with valuable skills to incorporate into the specialty practice areas and careers they pursue. To help develop these educational experiences, attention to the list of core entrustable professional activities (EPAs) established by the American Association of Colleges of Pharmacy can help create a rich environment of learning with carefully cultivated tasks. Furthermore, learners can serve as transplant pharmacist extenders to assist in overall patient care and multidisciplinary involvement on the transplant team. This article serves as a "how-to" guide for applying the EPA framework to integrating pharmacy students in patient care and other pharmacist activities in solid organ transplantation and other specialty practice areas. CONCLUSION As pharmacy preceptors design and operationalize their teaching to incorporate EPAs, they can benefit from recommendations tailored to specialty practice areas such as solid organ transplantation. Students may start and finish these experiences at different EPA levels, but continuance of training will allow them to achieve the final EPA level across the 6 EPA domains.
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Affiliation(s)
- Alicia Lichvar
- Department of Pharmacy Practice, University of Illinois at Chicago, Chicago, IL, and Department of Surgery, University of Illinois at Chicago, Chicago, IL, USA
| | | | - Vincent Do
- Department of Pharmacy, Yale New Haven Hospital, New Haven, CT, USA
| | - Trisann Rendulic
- Department of Pharmacy, University of Kentucky, Lexington, KY, USA
| | - Amanda Szczepanik
- Department of Pharmacy, University of Maryland Medical Center, Baltimore, MD, USA
| | - Dana Pierce
- Department of Pharmacy Practice, University of Illinois at Chicago, Chicago, IL, USA
| | - Jeong M Park
- Department of Clinical Pharmacy, College of Pharmacy, University of Michigan, Ann Arbor, MI, and Department of Pharmacy Services, Michigan Medicine, Ann Arbor, MI, USA
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Brazeau D, Meaney CJ, Consiglio JD, Wilding GE, Cooper LM, Venuto RC, Tornatore KM. Association of ABCC2 Haplotypes to Mycophenolic Acid Pharmacokinetics in Stable Kidney Transplant Recipients. J Clin Pharmacol 2021; 61:1592-1605. [PMID: 34169529 DOI: 10.1002/jcph.1932] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Accepted: 06/21/2021] [Indexed: 11/07/2022]
Abstract
Mycophenolic acid exhibits significant interpatient pharmacokinetic variability attributed to factors including race, sex, concurrent medications, and enterohepatic circulation of the mycophenolic acid glucuronide metabolite to mycophenolic acid. This conversion by enterohepatic circulation is mediated by the multidrug resistance-associated protein 2, encoded by ABCC2. This study investigated ABCC2 haplotype associations with mycophenolic acid pharmacokinetics in 147 stable kidney transplant recipients receiving mycophenolic acid in combination with calcineurin inhibitors. The role of the ABCC2 genotypes -24C>T (rs717620), 1249C>T (rs2273697), and 3972C>T (rs3740066) were evaluated in prospective, cross-sectional pharmacokinetic studies of stable recipients receiving mycophenolic acid and either tacrolimus or cyclosporine. Haplotype phenotypic associations with mycophenolic acid pharmacokinetic parameters were computed using THESIAS (v. 3.1). Four ABCC2 haplotypes with estimated frequencies greater than 10% were identified (H1:CGC [wild type], H9:CGT, H2:CAC, H12:TGT). There were no differences in haplotype frequencies by either race or sex. There were significant associations of pharmacokinetic parameters with ABCC2 haplotypes for mycophenolic acid clearance (L/h), mycophenolic acid AUC0-12h (mg·h/L), and the ratio of mycophenolic acid glucuronide to mycophenolic acid AUC0-12h . The wild-type haplotype ABCC2 CGC had greater mycophenolic acid AUC0-12h (P = .017), slower clearance (P = .013), and lower mycophenolic acid glucuronide to mycophenolic acid AUC0-12h ratio (P = .047) compared with the reduced function ABCC2 haplotype CGT. These differences were most pronounced among patients receiving tacrolimus cotreatment. No phenotypic associations were found with the cyclosporine-mycophenolic acid regimen. Variation in ABCC2 haplotypes contributes to subtherapeutic mycophenolic acid exposure and influences interpatient variability in pharmacokinetic phenotypes based on concurrent calcineurin inhibitor treatment.
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Affiliation(s)
- Daniel Brazeau
- Department of Pharmacy Practice Administration and Research, School of Pharmacy, Marshall University, Huntington, West Virginia, USA
| | - Calvin J Meaney
- Transplantation Immunosuppressive Pharmacology Research Program, Translational Pharmacology Research Core, Buffalo, New York, USA.,Department of Pharmacy Practice, School of Pharmacy and Pharmaceutical Sciences, University at Buffalo, Buffalo, New York, USA
| | - Joseph D Consiglio
- Department of Biostatistics, School of Public Health and Health Professions, University at Buffalo, Buffalo, New York, USA
| | - Gregory E Wilding
- Department of Pharmacy Practice, School of Pharmacy and Pharmaceutical Sciences, University at Buffalo, Buffalo, New York, USA
| | - Louise M Cooper
- Transplantation Immunosuppressive Pharmacology Research Program, Translational Pharmacology Research Core, Buffalo, New York, USA
| | - Rocco C Venuto
- Department of Medicine, Nephrology Division, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, New York, USA
| | - Kathleen M Tornatore
- Transplantation Immunosuppressive Pharmacology Research Program, Translational Pharmacology Research Core, Buffalo, New York, USA.,Department of Pharmacy Practice, School of Pharmacy and Pharmaceutical Sciences, University at Buffalo, Buffalo, New York, USA.,Department of Medicine, Nephrology Division, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, New York, USA
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5
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Meaney CJ, Sudchada P, Consiglio JD, Wilding GE, Cooper LM, Venuto RC, Tornatore KM. Influence of Calcineurin Inhibitor and Sex on Mycophenolic Acid Pharmacokinetics and Adverse Effects Post-Renal Transplant. J Clin Pharmacol 2019; 59:1351-1365. [PMID: 31062373 DOI: 10.1002/jcph.1428] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Accepted: 04/05/2019] [Indexed: 12/15/2022]
Abstract
Tacrolimus or cyclosporine is prescribed with mycophenolic acid posttransplant and contributes to interpatient variability in mycophenolic acid pharmacokinetics and response. Cyclosporine inhibits enterohepatic circulation of the metabolite mycophenolic acid glucuronide, which is not described with tacrolimus. This study investigated mycophenolic acid pharmacokinetics and adverse effects in stable renal transplant recipients and the association with calcineurin inhibitors, sex, and race. Mycophenolic acid and mycophenolic acid glucuronide area under the concentration-time curve from 0 to 12 hours (AUC0-12h ) and apparent clearance were determined at steady state in 80 patients receiving cyclosporine with mycophenolate mofetil and 67 patients receiving tacrolimus with mycophenolate sodium. Gastrointestinal adverse effects and hematologic parameters were evaluated. Statistical models evaluated mycophenolic acid pharmacokinetics and adverse effects. Mycophenolic acid AUC0-12h was 1.70-fold greater with tacrolimus (68.9 ± 30.9 mg·h/L) relative to cyclosporine (40.8 ± 17.6 mg·h/L); P < .001. Target mycophenolic acid AUC0-12h of 30-60 mg·h/L was achieved in 56.3% on cyclosporine compared with 34.3% receiving tacrolimus (P < .001). Mycophenolic acid clearance was 48% slower with tacrolimus (10.6 ± 4.7 L/h) relative to cyclosporine (20.5 ± 10.0 L/h); P < .001. Enterohepatic circulation occurred less frequently with cyclosporine (45%) compared with tacrolimus (78%); P < 0.001; with a 2.9-fold greater mycophenolic acid glucuronide AUC0-12h to mycophenolic acid AUC0-12h ratio (P < .001). Race did not affect mycophenolic acid pharmacokinetics. Gastrointestinal adverse effect scores were 2.2-fold higher with tacrolimus (P < .001) and more prominent in women (P = .017). Lymphopenia was more prevalent with tacrolimus (52.2%) than cyclosporine (22.5%); P < 0.001. Calcineurin inhibitors and sex contributed to interpatient variability in mycophenolic acid pharmacokinetics and adverse effects post-renal transplant, which could be attributed to differences in enterohepatic circulation.
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Affiliation(s)
- Calvin J Meaney
- Immunosuppressive Pharmacology Research Program, Translational Pharmacology Research Core, Buffalo, NY, USA.,Department of Pharmacy Practice, School of Pharmacy and Pharmaceutical Sciences, University at Buffalo, Buffalo, NY, USA
| | - Patcharaporn Sudchada
- Immunosuppressive Pharmacology Research Program, Translational Pharmacology Research Core, Buffalo, NY, USA
| | - Joseph D Consiglio
- Department of Biostatistics, School of Public Health and Health Professions, University at Buffalo, Buffalo, NY, USA
| | - Gregory E Wilding
- Department of Biostatistics, School of Public Health and Health Professions, University at Buffalo, Buffalo, NY, USA
| | - Louise M Cooper
- Immunosuppressive Pharmacology Research Program, Translational Pharmacology Research Core, Buffalo, NY, USA.,Department of Pharmacy Practice, School of Pharmacy and Pharmaceutical Sciences, University at Buffalo, Buffalo, NY, USA
| | - Rocco C Venuto
- Department of Medicine; Nephrology Division, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, NY, USA
| | - Kathleen M Tornatore
- Immunosuppressive Pharmacology Research Program, Translational Pharmacology Research Core, Buffalo, NY, USA.,Department of Pharmacy Practice, School of Pharmacy and Pharmaceutical Sciences, University at Buffalo, Buffalo, NY, USA.,Department of Medicine; Nephrology Division, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, NY, USA
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6
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Spasić A, Catić-Đorđević A, Veličković-Radovanović R, Stefanović N, Džodić P, Cvetković T. Adverse effects of mycophenolic acid in renal transplant recipients: gender differences. Int J Clin Pharm 2019; 41:776-784. [PMID: 31028595 DOI: 10.1007/s11096-019-00837-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Accepted: 04/15/2019] [Indexed: 12/22/2022]
Abstract
Background Mycophenolic acid is widely used immunosuppressive drug, associated with adverse effects which increase patient morbidity and decrease medication adherence. Objective To evaluate the adverse effects in renal transplant recipients under mycophenolate treatment with respect to gender. Setting University Clinical Centre of Nis, Clinic of Nephrology, Serbia. Method This research included 96 renal transplant recipients, who received immunosuppressive regimen, based on tacrolimus or cyclosporin A, prednisone and mycophenolic acid. The high-performance liquid chromatography method combined with protein precipitation was used for the analysis of mycophelate concentration in human plasma. Drug concentration and dose-adjusted concentration were determined with respect to the patients' gender. An adverse effect scoring system developed by nephrologists within the University of Buffalo Nephrology/Transplant Program was used to monitor adverse effects of therapy. Main outcome measure Individual and scores of adverse effects in relation to the dosing regimen and gender. Results Results showed statistically lower dose and concentrations in men compared to the women in our investigation group. Also, female patients demonstrated higher mean scores (cumulative and subscores) within the same dosing regimens of mycophenolic acid. The gastrointestinal score was significantly higher in women who received a dose greater than 720 mg compared to men (0.20 ± 0.12 vs 0.12 ± 0.12). Women demonstrated higher individual adverse effects such as diarrhea and skin changes (41.7 vs 17.0; p = 0.038 and 62.5 vs 30.2; p = 0.037, respectively). Conclusions The results of our research showed that recipients' gender may play an important role in pharmacokinetic profile of mycophenolic acid, suggesting that women had higher concentration of mycophenolic acid and more serious side effects.
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Affiliation(s)
- Ana Spasić
- Department of Pharmacy, Faculty of Medicine, University of Nis, Bulevar dr Zorana Djindjica 81, Nis, 18000, Serbia.
| | - Aleksandra Catić-Đorđević
- Department of Pharmacy, Faculty of Medicine, University of Nis, Bulevar dr Zorana Djindjica 81, Nis, 18000, Serbia
| | - Radmila Veličković-Radovanović
- Department of Pharmacy, Faculty of Medicine, University of Nis, Bulevar dr Zorana Djindjica 81, Nis, 18000, Serbia.,Clinic of Nephrology, Clinical Centre Nis, Nis, Serbia
| | - Nikola Stefanović
- Department of Pharmacy, Faculty of Medicine, University of Nis, Bulevar dr Zorana Djindjica 81, Nis, 18000, Serbia
| | - Predrag Džodić
- Department of Pharmacy, Faculty of Medicine, University of Nis, Bulevar dr Zorana Djindjica 81, Nis, 18000, Serbia
| | - Tatjana Cvetković
- Clinic of Nephrology, Clinical Centre Nis, Nis, Serbia.,Institute of Biochemistry, Faculty of Medicine, University of Nis, Nis, Serbia
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Campagne O, Mager DE, Brazeau D, Venuto RC, Tornatore KM. The impact of tacrolimus exposure on extrarenal adverse effects in adult renal transplant recipients. Br J Clin Pharmacol 2019; 85:516-529. [PMID: 30414331 DOI: 10.1111/bcp.13811] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2018] [Revised: 10/12/2018] [Accepted: 10/24/2018] [Indexed: 12/28/2022] Open
Abstract
AIMS Tacrolimus has been associated with notable extrarenal adverse effects (AEs), which are unpredictable and impact patient morbidity. The association between model-predicted tacrolimus exposure metrics and standardized extrarenal AEs in stable renal transplant recipients was investigated and a limited sampling strategy (LSS) was developed to predict steady-state tacrolimus area under the curve over a 12-h dosing period (AUCss,0-12h ). METHODS All recipients receiving tacrolimus and mycophenolic acid ≥6 months completed a 12-h cross-sectional observational pharmacokinetic-pharmacodynamic study. Patients were evaluated for the presence of individual and composite gastrointestinal, neurological, and aesthetic AEs during the study visit. The associations between AEs and tacrolimus exposure metrics generated from a published population pharmacokinetic model were investigated using a logistic regression analysis in NONMEM 7.3. An LSS was determined using a Bayesian estimation method with the same patients. RESULTS Dose-normalized tacrolimus AUCss,0-12h and apparent clearance were independently associated with diarrhoea, dyspepsia, insomnia and neurological AE ratio. Dose-normalized tacrolimus maximum concentration was significantly correlated with skin changes and acne. No AE associations were found with trough concentrations. Using limited sampling at 0, 2h; 0, 1, 4h; and 0, 1, 2, 4h provided a precise and unbiased prediction of tacrolimus AUC (root mean squared prediction error < 10%), which was not well characterized using trough concentrations only (root mean squared prediction error >15%). CONCLUSIONS Several AEs (i.e. diarrhoea, dyspepsia, insomnia and neurological AE ratio) were associated with tacrolimus dose normalized AUCss,0-12h and clearance. Skin changes and acne were associated with dose-normalized maximum concentrations. To facilitate clinical implementation, a LSS was developed to predict AUCss,0-12h values using sparse patient data to efficiently assess projected immunosuppressive exposure and potentially minimize AE manifestations.
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Affiliation(s)
- Olivia Campagne
- Department of Pharmaceutical Sciences, University at Buffalo, SUNY, Buffalo, NY, USA.,Faculty of Pharmacy, Universités Paris Descartes-Paris Diderot, Paris, France
| | - Donald E Mager
- Department of Pharmaceutical Sciences, University at Buffalo, SUNY, Buffalo, NY, USA
| | - Daniel Brazeau
- Department of Pharmaceutical Sciences, College of Pharmacy, University of New England, Portland, ME, USA
| | - Rocco C Venuto
- Erie County Medical Center, Division of Nephrology; Department of Medicine: Nephrology Division; School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, NY, USA
| | - Kathleen M Tornatore
- Erie County Medical Center, Division of Nephrology; Department of Medicine: Nephrology Division; School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, NY, USA.,Department of Pharmacy Practice, School of Pharmacy and Pharmaceutical Sciences, Immunosuppressive Pharmacology Research Program, University at Buffalo, Buffalo, NY, USA
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8
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Barbour S, Lo C, Espino-Hernandez G, Gill J, Levin A. The BC Glomerulonephritis Network: Improving Access and Reducing the Cost of Immunosuppressive Treatments for Glomerular Diseases. Can J Kidney Health Dis 2018; 5:2054358118759551. [PMID: 29581884 PMCID: PMC5863862 DOI: 10.1177/2054358118759551] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Accepted: 10/09/2017] [Indexed: 11/23/2022] Open
Abstract
Glomerulonephritis (GN) is a common cause of end-stage renal disease in Canada and worldwide, and results in significant health care resource utilization and patient morbidity. However, GN has not been a traditional priority of provincial renal health care organizations, despite the known benefits to health services delivery and patient outcomes from integrated provincial care in other types of chronic kidney disease. To address this deficiency, the British Columbia (BC) Provincial Renal Agency created the BC GN Network in 2013 to coordinate provincial GN health services delivery informed by robust population-level data capture on all GN patients in the province via the BC GN Registry. This report describes the use of the BC GN Network infrastructure to systematically develop and evaluate a provincial GN drug formulary to improve patient and physician access to evidence-based immunosuppressive treatments for GN in a cost-efficient manner that successfully halted historical trends of increasing medication costs. An example is provided of using the provincial infrastructure to implement and subsequently evaluate an evidence-informed health policy of converting brand to generic tacrolimus for the treatment of GN. The BC GN Network, including the provincial drug formulary and data infrastructure, is an example of the benefits of expanding the mandate of provincial renal health administrative organizations to include the care of patients with GN, and constitutes a viable health delivery model that can be implemented in other Canadian provinces to achieve similar goals.
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Affiliation(s)
- Sean Barbour
- BC Provincial Renal Agency, Vancouver, Canada.,Division of Nephrology, University of British Columbia, Vancouver, Canada.,Centre for Health Evaluation and Outcomes Research, St. Paul's Hospital, Vancouver, Canada
| | - Clifford Lo
- BC Provincial Renal Agency, Vancouver, Canada
| | | | - Jagbir Gill
- BC Provincial Renal Agency, Vancouver, Canada.,Division of Nephrology, University of British Columbia, Vancouver, Canada.,Centre for Health Evaluation and Outcomes Research, St. Paul's Hospital, Vancouver, Canada
| | - Adeera Levin
- BC Provincial Renal Agency, Vancouver, Canada.,Division of Nephrology, University of British Columbia, Vancouver, Canada.,Centre for Health Evaluation and Outcomes Research, St. Paul's Hospital, Vancouver, Canada
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9
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Tornatore KM, Meaney CJ, Wilding GE, Chang SS, Gundroo A, Cooper LM, Gray V, Shin K, Fetterly GJ, Prey J, Clark K, Venuto RC. Influence of sex and race on mycophenolic acid pharmacokinetics in stable African American and Caucasian renal transplant recipients. Clin Pharmacokinet 2015; 54:423-34. [PMID: 25511793 DOI: 10.1007/s40262-014-0213-7] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
BACKGROUND AND OBJECTIVES No evaluation of sex and race influences on mycophenolic acid (MPA) pharmacokinetics and adverse effects (AEs) during enteric-coated mycophenolate sodium (ECMPS) and tacrolimus immunosuppression are available. The primary objective of this study was to investigate the influence of sex and race on MPA and MPA glucuronide (MPAG) pharmacokinetics in stable renal transplant recipients receiving ECMPS and tacrolimus METHODS The pharmacokinetics of MPA and MPAG and their associated gastrointestinal AEs were investigated in 67 stable renal transplant recipients: 22 African American males (AAMs), 13 African American females (AAFs), 16 Caucasian males (CMs), and 16 Caucasian females (CFs) receiving ECMPS and tacrolimus. A validated gastrointestinal AE rating included diarrhea, dyspepsia, vomiting, and acid-suppressive therapy was completed. Apparent clearance, clearance normalized to body mass index (BMI), area under the concentration-time curve from time zero to 12 h (AUC12) and dose-normalized AUC12 (AUC*) were determined using a statistical model that incorporated gastrointestinal AE and clinical covariates. RESULTS Males had more rapid apparent MPA clearance (CMs 13.8 ± 6.27 L/h vs. AAMs 10.2 ± 3.73 L/h) than females (CFs 8.70 ± 3.33 L/h and AAFs 9.71 ± 3.94 L/h; p = 0.014) with a race-sex interaction (p = 0.043). Sex differences were observed in MPA clearance/BMI (p = 0.033) and AUC* (p = 0.033). MPA AUC12 was greater than 60 mg·h/L in 57 % of renal transplant recipients (RTR) with 71 % of patients demonstrating gastrointestinal AEs and a higher score noted in females. In all patients, females exhibited 1.40-fold increased gastrointestinal AE scores compared with males (p = 0.024). Race (p = 0.044) and sex (p = 0.005) differences were evident with greater MPAG AUC12 in AAFs and CFs. CONCLUSION Sex and race differences were evident, with females having slower MPA clearance, higher MPAG AUC12, and more severe gastrointestinal AEs. These findings suggest sex and race should be considered during MPA immunosuppression.
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Affiliation(s)
- Kathleen M Tornatore
- Department of Pharmacy Practice, School of Pharmacy and Pharmaceutical Sciences, Immunosuppressive Pharmacology Research Program, Translational Pharmacology Research Core, NYS Center of Excellence in Bioinformatics and Life Sciences, University at Buffalo, 701 Ellicott Street, Buffalo, NY, 14203, USA,
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10
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Venuto RC, Meaney CJ, Chang S, Leca N, Consiglio JD, Wilding GE, Brazeau D, Gundroo A, Nainani N, Morse SE, Cooper LM, Tornatore KM. Association of Extrarenal Adverse Effects of Posttransplant Immunosuppression With Sex and ABCB1 Haplotypes. Medicine (Baltimore) 2015; 94:e1315. [PMID: 26376376 PMCID: PMC4635790 DOI: 10.1097/md.0000000000001315] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2015] [Revised: 06/25/2015] [Accepted: 07/13/2015] [Indexed: 01/28/2023] Open
Abstract
Extrarenal adverse effects (AEs) associated with calcineurin inhibitor (CNI) and mycophenolic acid (MPA) occur frequently but are unpredictable posttransplant complications. AEs may result from intracellular CNI accumulation and low activity of P-glycoprotein, encoded by the ABCB1 gene. Since ABCB1 single nucleotide polymorphisms (SNPs) and sex influence P-glycoprotein, we investigated haplotypes and extrarenal AEs. A prospective, cross-sectional study evaluated 149 patients receiving tacrolimus and enteric coated mycophenolate sodium or cyclosporine and mycophenolate mofetil. Immunosuppressive AE assessment determined individual and composite gastrointestinal, neurologic, aesthetic, and cumulative AEs. Lipids were quantitated after 12-hour fast. ABCB1 SNPs: c.1236C>T (rs1128503), c.2677G>T/A (rs2032582), and c.3435C>T (rs1045642) were determined with haplotype associations computed using the THESIAS program, and evaluated by immunosuppression, sex and race using multivariate general linear models. Tacrolimus patients exhibited more frequent and higher gastrointestinal AE scores compared with cyclosporine with association to CTT (P = 0.018) and sex (P = 0.01). Aesthetic AE score was 3 times greater for cyclosporine with TTC haplotype (P = 0.005). Females had higher gastrointestinal (P = 0.022), aesthetic (P < 0.001), neurologic (P = 0.022), and cumulative AE ratios (P < 0.001). Total cholesterol (TCHOL), low-density lipoproteins (LDL), and triglycerides were higher with cyclosporine. The TTC haplotype had higher TCHOL (P < 0.001) and LDL (P = 0.005). Higher triglyceride (P = 0.034) and lower high-density lipoproteins (P = 0.057) were associated with TTT with sex-adjusted analysis. ABCB1 haplotypes and sex were associated with extrarenal AEs. Using haplotypes, certain female patients manifested more AEs regardless of CNI. Haplotype testing may identify patients with greater susceptibility to AEs and facilitate CNI individualization.
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Affiliation(s)
- Rocco C Venuto
- From the Nephrology Division; Medicine, School of Medicine and Biomedical Sciences (RCV, SC, NL, AG, NN, KMT); Erie County Medical Center, Buffalo, New York (RCV, AG, KMT); Immunosuppressive Pharmacology Research Program, Translational Pharmacology Research Core, NYS Center of Excellence in Bioinformatics and Life Sciences (CJM, SEM, LMC, KMT); Pharmacy, School of Pharmacy and Pharmaceutical Sciences (CJM, SEM, KMT); Biostatistics, School of Public Health and Health Professions, University at Buffalo, Buffalo, New York (JDC, GEW); and Department of Pharmaceutical Sciences, College of Pharmacy, University of New England, Portland, Maine (DB)
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11
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Figueiredo C, Blasczyk R. A future with less HLA: potential clinical applications of HLA-universal cells. ACTA ACUST UNITED AC 2015; 85:443-9. [DOI: 10.1111/tan.12564] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- C. Figueiredo
- Institute for Transfusion Medicine; Hannover Medical School; Hannover Germany
| | - R. Blasczyk
- Institute for Transfusion Medicine; Hannover Medical School; Hannover Germany
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12
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Silva AAD, Silva Filho ÁPE, Sesso RDCC, Esmeraldo RDM, Oliveira CMCD, Fernandes PFCBC, Oliveira RAD, Silva LSVD, Carvalho VPD, Costa CHN, Andrade JX, Silva DMBD, Chaves RV. Epidemiologic, clinical, diagnostic and therapeutic aspects of visceral leishmaniasis in renal transplant recipients: experience from thirty cases. BMC Infect Dis 2015; 15:96. [PMID: 25877483 PMCID: PMC4381535 DOI: 10.1186/s12879-015-0852-9] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2014] [Accepted: 02/19/2015] [Indexed: 01/10/2023] Open
Abstract
BACKGROUND Visceral leishmaniasis is a disease caused by the protozoan Leishmania sp. and is transmitted by Lutzomyia longipalpis (sand fly). In renal transplant recipients, visceral leishmaniasis causes severe damage to the liver, spleen, and hematopoietic system, as well as poor outcomes for patients with transplanted kidneys. This study describes the largest series of cases of visceral leishmaniasis in renal transplant recipients, providing important information about the diagnostic routines and therapeutic strategies in this patient population. METHODS A retrospective, descriptive study was performed to analyze the distribution and evaluate the extent of the epidemiologic, clinical, diagnostic and therapeutic aspects of 30 renal transplant recipients from endemic regions who presented with visceral leishmaniasis in the post-transplantation period. RESULTS In this study, visceral leishmaniasis was more frequent in men (80%). The mean age of presentation was 40 ± 10.5 years. The majority of patients worked in urban areas (66.7%), cohabitated with domestic animals (90%), and were from low-income households. In 73.3% of cases, diagnosis was made by direct isolation of Leishmania forms. Patients were treated with liposomal amphotericin, resulting in a high degree of disease remission (80%). CONCLUSIONS This study describes the largest series of visceral leishmaniasis in renal transplant recipients and expands clinical-epidemiological knowledge for transplantation teams to perform adequate disease management for this specific patient population.
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Affiliation(s)
- Avelar Alves de Silva
- />General Clinic Department, Federal University of Piauí, Piauí, Brazil
- />Renal Transplant Unit, Hospital Alianca Casamater, Piauí, Brazil
| | - Álvaro Pacheco E Silva Filho
- />Discipline of Nephrology, Federal University of São Paulo, São Paulo, Brazil
- />Renal Transplant Unit, Hospital Israelita Albert Einstein, Sao Paulo, Brazil
| | | | | | | | | | - Rodrigo Alves de Oliveira
- />Division of Nephrology, Renal Transplant Service, Dr. Joaquim Bezerra Unit, School of Medicine, University of Crato, Ceará, Brazil
| | - Leila Silveira Veira de Silva
- />Division of Nephrology, Renal Transplant Service, Dr. Joaquim Bezerra Unit, School of Medicine, University of Crato, Ceará, Brazil
| | - Valencio Pereira de Carvalho
- />Division of Nephrology, Renal Transplant Service, Dr. Joaquim Bezerra Unit, School of Medicine, University of Crato, Ceará, Brazil
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