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Mwita JC, Joubert A, Saidu H, Sani MU, Damasceno A, Mocumbi AO, Sinxadi P, Viljoen CA, Hoevelmann J, Gebreyesus MS, Denti P, Wasmann R, Maartens G, Wiesner L, Stewart S, Davison B, Cotter G, Sliwa K. Objectively measured medication adherence using assays for carvedilol and enalaprilat in patients with heart failure in Mozambique and Nigeria. Int J Cardiol Cardiovasc Risk Prev 2023; 19:200213. [PMID: 37811486 PMCID: PMC10556761 DOI: 10.1016/j.ijcrp.2023.200213] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 08/22/2023] [Accepted: 09/07/2023] [Indexed: 10/10/2023]
Abstract
Background Poor medication adherence leads to poor health outcomes and increased healthcare costs among patients with heart failure (HF). This study aimed to objectively assess medication adherence by measuring carvedilol and enalaprilat plasma concentrations among patients with HF. Methods The present sub-study of the Safety, Tolerability, and Efficacy of Rapid Optimization, helped by NT-proBNP testing, of Heart Failure therapies (STRONG-HF) study involved adult patients with acute HF admitted in two Mozambican and two Nigerian hospitals who were not optimally treated with oral enalapril and carvedilol. Patients in the high-intensity arm of the STRONG-HF study, and those not meeting the biomarker criteria for persistent congestion, were included in the "frequent visit" (FV) arm. In the FV arm, blood for bioanalysis of plasma enalaprilat or/and carvedilol was drawn at the 2,6,12th week post-discharge. Patients in the usual care arm of STRONG-HF were included in the "standard visit" (SV) arm, which followed the usual local practice with blood sampling in week 12. Results The study involved 113 (79 FV and 34 SV) participants with a mean age of 48.6 years and a mean left ventricular (LV) ejection fraction of 33.1%. Theenalaprilat below the lower level of quantification (LLOQ) was documented in 7.7%, 11.9%, and 15.6% of participants in FV during the 2,6 and 12th weeks. Carvedilol concentration below LLOQ was documented in 37%, 30%, and 44.4% of participants in the FV arm during the 2,6 and 12th weeks, respectively. For the SV arm, enalaprilat and carvedilol concentrations below LLOQ in the twelfth week were documented in 37.3% and 42.9% of patients, respectively. Conclusion Up to a third of patients using enalapril and carvedilol did not take any medication during the 12 weeks of follow-up. Non adherence was more common in patients who had less follow up, emphasizing the importance of close follow up to adherence. No adherence was also more common in medications know to have more side effects such as carvedilol.
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Affiliation(s)
- Julius Chacha Mwita
- Department of Internal Medicine, University of Botswana and Princess Marina Hospital, Gaborone, Botswana
| | - Andre Joubert
- Division of Clinical Pharmacology, Department of Medicine, University of Cape Town, Cape Town, South Africa
| | - Hadiza Saidu
- Department of Medicine Bayero University Kano & Murtala Muhammed Specialist Hospital, Kano, Nigeria
| | - Mahmoud Umar Sani
- Department of Medicine, Bayero University Kano & Aminu Kano Teaching Hospital, Kano, Nigeria
| | - Albertino Damasceno
- Faculty of Medicine, Eduardo Mondlane University, Maputo, Mozambique
- Research Unit, Department of Medicine, Maputo Central Hospital, Maputo, Mozambique
| | - Ana Olga Mocumbi
- Faculty of Medicine, Eduardo Mondlane University, Maputo, Mozambique
- Instituto Nacional de Saúde, Vila de Marracuene, Mozambique
| | - Phumla Sinxadi
- Division of Clinical Pharmacology, Department of Medicine, University of Cape Town, Cape Town, South Africa
- SAMRC/UCT Platform for Pharmacogenomics Research and Translation, South African Medical Research Council, Cape Town, South Africa
| | - Charle Andre Viljoen
- Cape Heart Institute, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | - Julian Hoevelmann
- Cape Heart Institute, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
- Division of Cardiology, Department of Medicine, Groote Schuur Hospital, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
- Department of Internal Medicine III - Cardiology, Angiology and Intensive Care Medicine, Saarland University Hospital, Homburg, Germany
| | - Manna Semere Gebreyesus
- Division of Clinical Pharmacology, Department of Medicine, University of Cape Town, Cape Town, South Africa
| | - Paolo Denti
- Division of Clinical Pharmacology, Department of Medicine, University of Cape Town, Cape Town, South Africa
| | - Roeland Wasmann
- Division of Clinical Pharmacology, Department of Medicine, University of Cape Town, Cape Town, South Africa
| | - Gary Maartens
- Division of Clinical Pharmacology, Department of Medicine, University of Cape Town, Cape Town, South Africa
| | - Lubbe Wiesner
- Division of Clinical Pharmacology, Department of Medicine, University of Cape Town, Cape Town, South Africa
| | - Simon Stewart
- Faculty of Medicine, Eduardo Mondlane University, Maputo, Mozambique
- Institute for Health Research, University of Notre Dame Australia, Fremantle, WA, Australia
- School of Medicine, Dentistry & Nursing, University of Glasgow, Glasgow, UK
- Menzies Health Institute Queensland, Griffith University, Gold Coast, QLD, Australia
| | - Beth Davison
- Momentum Research, Inc., Chapel Hill, NC, USA
- Inserm UMR-S 942, Cardiovascular Markers in Stress Conditions (MASCOT), Université de Paris, Paris, France
| | - Gad Cotter
- Momentum Research, Inc., Chapel Hill, NC, USA
- Inserm UMR-S 942, Cardiovascular Markers in Stress Conditions (MASCOT), Université de Paris, Paris, France
| | - Karen Sliwa
- Cape Heart Institute, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
- Division of Cardiology, Department of Medicine, Groote Schuur Hospital, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
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Gebreyesus MS, Decloedt EH, Cluver CA, Hunfeld NGM, Helgadóttir H, Björnsson ES, Wasmann RE, Denti P. Population pharmacokinetics of esomeprazole in patients with preterm preeclampsia. Br J Clin Pharmacol 2022; 88:4639-4645. [PMID: 35599445 DOI: 10.1111/bcp.15416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 04/19/2022] [Accepted: 05/05/2022] [Indexed: 11/30/2022] Open
Abstract
Esomeprazole is a proton pump inhibitor being investigated for treatment of preeclampsia. Esomeprazole pharmacokinetics during pregnancy are unknown. We used data from 10 pregnant participants with preterm preeclampsia, and 49 non-pregnant participants to develop a population pharmacokinetic model of esomeprazole. A two-compartment model described the data well. In pregnant participants after single dose, clearance was 42.2% (14.9% - 61.6%) lower compared to non-pregnant, most likely due to inhibition of CYP2C19. In non-pregnant after repeated dosing, clearance was 54.9% (48.2% - 63.5%) lower in extensive metabolizers and bioavailability was 33% (10.0% - 52.0%) higher compared to single dosing, which could be due to autoinhibition of CYP2C19. During pregnancy, the CYP2C19 autoinhibition effect with repeated dosing is expected to lead to much lower increase in exposure compared to non-pregnant, since CYP2C19 is already inhibited due to pregnancy.
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Affiliation(s)
- Manna Semere Gebreyesus
- Division of Clinical Pharmacology, Department of Medicine, University of Cape Town, Cape Town, South Africa
| | - Eric H Decloedt
- Division of Clinical Pharmacology, Department of Medicine, Stellenbosch University and Tygerberg Hospital, Stellenbosch, South Africa
| | - Catherine A Cluver
- Department of Obstetrics and Gynaecology, Stellenbosch University and Tygerberg Hospital, Stellenbosch, South Africa
| | - Nicole G M Hunfeld
- Department of Pharmacy and Intensive Care, Erasmus University Rotterdam, Rotterdam, Netherlands
| | - Hólmfríður Helgadóttir
- Division of Gastroenterology, Department of Internal Medicine, Faculty of Medicine, University of Iceland, Reykjavik, Iceland
| | - Einar S Björnsson
- Division of Gastroenterology, Department of Internal Medicine, Faculty of Medicine, University of Iceland, Reykjavik, Iceland
| | - Roeland E Wasmann
- Division of Clinical Pharmacology, Department of Medicine, University of Cape Town, Cape Town, South Africa
| | - Paolo Denti
- Division of Clinical Pharmacology, Department of Medicine, University of Cape Town, Cape Town, South Africa
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