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Yow HY, Ikawati M, Siswanto S, Hermawan A, Rahmat AK, Tan JSL, Tee YC, Ng KP, Ikawati Z. Influence of genetic polymorphisms on pharmacokinetics and treatment response of mycophenolic acid: a scoping review. Pharmacogenomics 2024:1-30. [PMID: 38884938 DOI: 10.1080/14622416.2024.2344430] [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: 03/09/2024] [Accepted: 04/12/2024] [Indexed: 06/18/2024] Open
Abstract
This scoping review explores the impact of genetic polymorphisms on the pharmacokinetics and treatment responses of mycophenolic acid (MPA), an immunosuppressant. The study includes 83 articles from 1226 original studies, focusing on transplantation (n = 80) and autoimmune disorders (n = 3). Genetic variants in uridine 5'-diphospho-glucuronosyltransferase (UGT1A9, UGT1A8 and UGT2B7) and transmembrane transporters (ABCC2, SLCO1B1, SLCO1B3 and ABCB1) significantly affected MPA's pharmacokinetics and susceptibility to its adverse effect. Whereas variants in several genes including UGT1A9, UGT2B7, IMPDH1 and IMPDH2 have been associated with a higher risk of transplant rejection. However, there is a lack of studies on MPA's impact on autoimmune disorders and limited research on the Asian population. The findings underscore the need for further research on MPA's impact across different populations and diseases, particularly among other Asian ethnic groups, to advance personalized medicine in MPA therapy.
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Affiliation(s)
- Hui-Yin Yow
- Department of Pharmaceutical Life Sciences, Faculty of Pharmacy, Universiti Malaya, Kuala Lumpur, 50603, Malaysia
| | - Muthi Ikawati
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Universitas Gadjah Mada, Daerah Istimewa Yogyakarta, 55281, Indonesia
| | - Soni Siswanto
- Department of Pharmacology & Clinical Pharmacy, Faculty of Pharmacy, Universitas Gadjah Mada, Daerah Istimewa Yogyakarta, 55281, Indonesia
| | - Adam Hermawan
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Universitas Gadjah Mada, Daerah Istimewa Yogyakarta, 55281, Indonesia
- Advanced Pharmaceutical Sciences Laboratory, Faculty of Pharmacy, Universitas Gadjah Mada, Daerah Istimewa Yogyakarta, 55281, Indonesia
| | - Alim Khodimul Rahmat
- Department of Pharmacology & Clinical Pharmacy, Faculty of Pharmacy, Universitas Gadjah Mada, Daerah Istimewa Yogyakarta, 55281, Indonesia
| | - Janet Sui-Ling Tan
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Universiti Malaya, Kuala Lumpur, 50603, Malaysia
| | - Ying-Chew Tee
- Rheumatology Unit, Department of Medicine, University Malaya, Kuala Lumpur, 50603, Malaysia
| | - Kok-Peng Ng
- Nephrology Unit, Department of Medicine, University Malaya, Kuala Lumpur, 50603, Malaysia
| | - Zullies Ikawati
- Department of Pharmacology & Clinical Pharmacy, Faculty of Pharmacy, Universitas Gadjah Mada, Daerah Istimewa Yogyakarta, 55281, Indonesia
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Divard G, Aubert O, Debiais-Deschamp C, Raynaud M, Goutaudier V, Sablik M, Sayeg C, Legendre C, Obert J, Anglicheau D, Lefaucheur C, Loupy A. Long-Term Outcomes after Conversion to a Belatacept-Based Immunosuppression in Kidney Transplant Recipients. Clin J Am Soc Nephrol 2024; 19:628-637. [PMID: 38265815 PMCID: PMC11108246 DOI: 10.2215/cjn.0000000000000411] [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: 08/27/2023] [Accepted: 01/19/2024] [Indexed: 01/25/2024]
Abstract
BACKGROUND Conversion to a belatacept-based immunosuppression is currently used as a calcineurin inhibitor (CNI) avoidance strategy when the CNI-based standard-of-care immunosuppression is not tolerated after kidney transplantation. However, there is a lack of evidence on the long-term benefit and safety after conversion to belatacept. METHODS We prospectively enrolled 311 kidney transplant recipients from 2007 to 2020 from two referral centers, converted from CNI to belatacept after transplant according to a prespecified protocol. Patients were matched at the time of conversion to patients maintained with CNIs, using optimal matching. The primary end point was death-censored allograft survival at 7 years. The secondary end points were patient survival, eGFR, and safety outcomes, including serious viral infections, immune-related complications, antibody-mediated rejection, T-cell-mediated rejection, de novo anti-HLA donor-specific antibody, de novo diabetes, cardiovascular events, and oncologic complications. RESULTS A total of 243 patients converted to belatacept (belatacept group) were matched to 243 patients maintained on CNIs (CNI control group). All recipient, transplant, functional, histologic, and immunologic parameters were well balanced between the two groups with a standardized mean difference below 0.05. At 7 years post-conversion to belatacept, allograft survival was 78% compared with 63% in the CNI control group ( P < 0.001 for log-rank test). The safety outcomes showed a similar rate of patient death (28% in the belatacept group versus 36% in the CNI control group), active antibody-mediated rejection (6% versus 7%), T-cell-mediated rejection (4% versus 4%), major adverse cardiovascular events, and cancer occurrence (9% versus 11%). A significantly higher rate of de novo proteinuria was observed in the belatacept group as compared with the CNI control group (37% versus 21%, P < 0.001). CONCLUSIONS This real-world evidence study shows that conversion to belatacept post-transplant was associated with lower risk of graft failure and acceptable safety outcomes compared with patients maintained on CNIs. CLINICAL TRIAL REGISTRY NAME AND REGISTRATION NUMBER Long-term Outcomes after Conversion to Belatacept, NCT04733131 .
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Affiliation(s)
- Gillian Divard
- INSERM U970 PARCC, Pa`ris Institute for Transplantation and Organ Regeneration, Université Paris Cité, Paris, France
- Kidney Transplant Department, Saint-Louis Hospital, Assistance Publique - Hôpitaux de Paris, Paris, France
| | - Olivier Aubert
- INSERM U970 PARCC, Pa`ris Institute for Transplantation and Organ Regeneration, Université Paris Cité, Paris, France
- Kidney Transplant Department, Necker Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Charlotte Debiais-Deschamp
- INSERM U970 PARCC, Pa`ris Institute for Transplantation and Organ Regeneration, Université Paris Cité, Paris, France
- Kidney Transplant Department, Necker Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Marc Raynaud
- INSERM U970 PARCC, Pa`ris Institute for Transplantation and Organ Regeneration, Université Paris Cité, Paris, France
| | - Valentin Goutaudier
- INSERM U970 PARCC, Pa`ris Institute for Transplantation and Organ Regeneration, Université Paris Cité, Paris, France
| | - Marta Sablik
- INSERM U970 PARCC, Pa`ris Institute for Transplantation and Organ Regeneration, Université Paris Cité, Paris, France
| | - Caroline Sayeg
- Kidney Transplant Department, Saint-Louis Hospital, Assistance Publique - Hôpitaux de Paris, Paris, France
| | - Christophe Legendre
- INSERM U970 PARCC, Pa`ris Institute for Transplantation and Organ Regeneration, Université Paris Cité, Paris, France
- Kidney Transplant Department, Necker Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Julie Obert
- INSERM U970 PARCC, Pa`ris Institute for Transplantation and Organ Regeneration, Université Paris Cité, Paris, France
| | - Dany Anglicheau
- Kidney Transplant Department, Necker Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France
- Necker-Enfants Malades Institute, INSERM U1151, Université de Paris Cité, Paris, France
| | - Carmen Lefaucheur
- INSERM U970 PARCC, Pa`ris Institute for Transplantation and Organ Regeneration, Université Paris Cité, Paris, France
- Kidney Transplant Department, Saint-Louis Hospital, Assistance Publique - Hôpitaux de Paris, Paris, France
| | - Alexandre Loupy
- INSERM U970 PARCC, Pa`ris Institute for Transplantation and Organ Regeneration, Université Paris Cité, Paris, France
- Kidney Transplant Department, Necker Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France
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Miners JO, Polasek TM, Hulin JA, Rowland A, Meech R. Drug-drug interactions that alter the exposure of glucuronidated drugs: Scope, UDP-glucuronosyltransferase (UGT) enzyme selectivity, mechanisms (inhibition and induction), and clinical significance. Pharmacol Ther 2023:108459. [PMID: 37263383 DOI: 10.1016/j.pharmthera.2023.108459] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 05/18/2023] [Accepted: 05/22/2023] [Indexed: 06/03/2023]
Abstract
Drug-drug interactions (DDIs) arising from the perturbation of drug metabolising enzyme activities represent both a clinical problem and a potential economic loss for the pharmaceutical industry. DDIs involving glucuronidated drugs have historically attracted little attention and there is a perception that interactions are of minor clinical relevance. This review critically examines the scope and aetiology of DDIs that result in altered exposure of glucuronidated drugs. Interaction mechanisms, namely inhibition and induction of UDP-glucuronosyltransferase (UGT) enzymes and the potential interplay with drug transporters, are reviewed in detail, as is the clinical significance of known DDIs. Altered victim drug exposure arising from modulation of UGT enzyme activities is relatively common and, notably, the incidence and importance of UGT induction as a DDI mechanism is greater than generally believed. Numerous DDIs are clinically relevant, resulting in either loss of efficacy or an increased risk of adverse effects, necessitating dose individualisation. Several generalisations relating to the likelihood of DDIs can be drawn from the known substrate and inhibitor selectivities of UGT enzymes, highlighting the importance of comprehensive reaction phenotyping studies at an early stage of drug development. Further, rigorous assessment of the DDI liability of new chemical entities that undergo glucuronidation to a significant extent has been recommended recently by regulatory guidance. Although evidence-based approaches exist for the in vitro characterisation of UGT enzyme inhibition and induction, the availability of drugs considered appropriate for use as 'probe' substrates in clinical DDI studies is limited and this should be research priority.
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Affiliation(s)
- John O Miners
- Discipline of Clinical Pharmacology and Flinders Centre for Innovation in Cancer, Flinders University College of Medicine and Public Health, Flinders University, Adelaide, Australia.
| | - Thomas M Polasek
- Certara, Princeton, NJ, USA; Centre for Medicines Use and Safety, Monash University, Melbourne, Australia
| | - Julie-Ann Hulin
- Discipline of Clinical Pharmacology and Flinders Centre for Innovation in Cancer, Flinders University College of Medicine and Public Health, Flinders University, Adelaide, Australia
| | - Andrew Rowland
- Discipline of Clinical Pharmacology and Flinders Centre for Innovation in Cancer, Flinders University College of Medicine and Public Health, Flinders University, Adelaide, Australia
| | - Robyn Meech
- Discipline of Clinical Pharmacology and Flinders Centre for Innovation in Cancer, Flinders University College of Medicine and Public Health, Flinders University, Adelaide, Australia
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Tanaka R, Matsumoto A, Tatsuta R, Ando T, Shin T, Mimata H, Itoh H. Sustained suppression of enterohepatic circulation of mycophenolic acid by antimicrobial-associated diarrhea in a kidney transplant recipient with Crohn's disease: A case report. Clin Case Rep 2022; 10:e05914. [PMID: 35677857 PMCID: PMC9167663 DOI: 10.1002/ccr3.5914] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 04/26/2022] [Accepted: 05/14/2022] [Indexed: 01/03/2023] Open
Abstract
Mycophenolic acid (MPA) undergoes enterohepatic circulation. A kidney transplant patient on mycophenolate mofetil was treated with tazobactam/piperacillin for pyelonephritis, and developed antimicrobial-associated diarrhea. Consequently, the MPA trough level decreased by approximately 90%. Furthermore, it took approximately a month for the MPA level to normalize even after diarrhea had resolved.
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Affiliation(s)
- Ryota Tanaka
- Department of Clinical PharmacyOita University HospitalOitaJapan
| | - Asami Matsumoto
- Department of Clinical PharmacyOita University HospitalOitaJapan
| | - Ryosuke Tatsuta
- Department of Clinical PharmacyOita University HospitalOitaJapan
| | - Tadasuke Ando
- Department of UrologyFaculty of MedicineOita UniversityOitaJapan
| | - Toshitaka Shin
- Department of UrologyFaculty of MedicineOita UniversityOitaJapan
| | - Hiromitsu Mimata
- Department of UrologyFaculty of MedicineOita UniversityOitaJapan
| | - Hiroki Itoh
- Department of Clinical PharmacyOita University HospitalOitaJapan
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