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Chen R, Zhang RF, Xing YR, Wang JR, Liu L, Yin L, Li YY, Jiao Z, Zhang LJ. Do Chinese HIV-infected adult patients with altered renal function need to adjust tenofovir disoproxil fumarate dosage? A population pharmacokinetics analysis. Eur J Pharm Sci 2024; 201:106851. [PMID: 39009286 DOI: 10.1016/j.ejps.2024.106851] [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: 02/01/2024] [Revised: 06/11/2024] [Accepted: 07/12/2024] [Indexed: 07/17/2024]
Abstract
Tenofovir disoproxil fumarate (TDF), a prodrug of tenofovir (TFV), is an effective drug in treating patients infected with human immunodeficiency virus (HIV). Previous population pharmacokinetics (PPK) studies have showed the large variabilities in PK of TFV. Furthermore, limited information was known in Chinese populations. Therefore, the aim of this study was to characterize PPK of TDF in Chinese and identify factors that may affect its PK. TFV concentrations (n = 552) from 30 healthy subjects and 162 HIV-infected Chinese adult patients were pooled for PPK analysis by a nonlinear mixed-effects method. The PK of TFV was adequately described as a two-compartment model with first order absorption and elimination. The typical apparent clearance (CL/F) of TFV in 70-kg adults was 137 L/h, higher than that reported in Caucasians and Blacks (45.8-93 L/h). Estimated glomerular filtration rate was identified to be a significant factor influencing CL/F. Monte Carlo simulation showed that the exposure of standard dosing regimen of TDF 300 mg every 24 h in Chinese people with mild renal impairment (60 to 90 ml/min/1.73 m2) was close to that in individuals with normal renal function (90 mL/min). Dose adjustment is not required for patients with mild renal impairment. Our study might offer new clues for optimal dosing strategies in Chinese patients with HIV-infected.
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Affiliation(s)
- Rui Chen
- Department of Clinical Research Center, Shanghai Public Health Clinical Center, Fudan University, Jinshan District, Shanghai, 201508, China; Department of Pharmacy, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, 241 Huaihai West Road, Shanghai, 200030, China
| | - Ren-Fang Zhang
- Department of Clinical Research Center, Shanghai Public Health Clinical Center, Fudan University, Jinshan District, Shanghai, 201508, China
| | - Ya-Ru Xing
- Department of Clinical Research Center, Shanghai Public Health Clinical Center, Fudan University, Jinshan District, Shanghai, 201508, China; School of Pharmacy, Guilin Medical University, 1 Zhiyuan Road, Lingui District, Guilin 541199, China
| | - Jiang-Rong Wang
- Department of Clinical Research Center, Shanghai Public Health Clinical Center, Fudan University, Jinshan District, Shanghai, 201508, China
| | - Li Liu
- Department of Clinical Research Center, Shanghai Public Health Clinical Center, Fudan University, Jinshan District, Shanghai, 201508, China
| | - Lin Yin
- Department of Clinical Research Center, Shanghai Public Health Clinical Center, Fudan University, Jinshan District, Shanghai, 201508, China
| | - Ying-Ying Li
- School of Pharmacy, Guilin Medical University, 1 Zhiyuan Road, Lingui District, Guilin 541199, China.
| | - Zheng Jiao
- Department of Pharmacy, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, 241 Huaihai West Road, Shanghai, 200030, China.
| | - Li-Jun Zhang
- Department of Clinical Research Center, Shanghai Public Health Clinical Center, Fudan University, Jinshan District, Shanghai, 201508, China.
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Saborido-Alconchel A, Serna-Gallego A, Lopez-Cortes LE, Trujillo-Rodriguez M, Praena-Fernandez JM, Dominguez-Macias M, Lozano C, Muñoz-Muela E, Espinosa N, Roca-Oporto C, Sotomayor C, Herrero M, Gutierrez-Valencia A, Lopez-Cortes LF. Decay kinetics of HIV-1-RNA in seminal plasma with dolutegravir/lamivudine versus dolutegravir plus emtricitabine/tenofovir alafenamide in treatment-naive people living with HIV. J Antimicrob Chemother 2023; 78:2354-2360. [PMID: 37545387 PMCID: PMC10477137 DOI: 10.1093/jac/dkad245] [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: 04/22/2023] [Accepted: 07/19/2023] [Indexed: 08/08/2023] Open
Abstract
BACKGROUND This was a substudy of a Phase IV, randomized clinical trial (ClinicalTrials.gov identifier: NCT04295460) aiming to compare the activity of dolutegravir/lamivudine versus dolutegravir plus tenofovir alafenamide/emtricitabine (DTG + TAF/FTC) in the male genital tract. METHODS Participants were asymptomatic adults without sexually transmitted diseases, treatment-naive people living with HIV (PLWH), with CD4+ T cell counts >200 cells/mm3 and plasma HIV-1-RNA levels >5000 and <500 000 copies/mL, randomized (1:1) to DTG + TAF/FTC or dolutegravir/lamivudine. Blood plasma (BP) and seminal plasma (SP) were collected at baseline and Weeks 4, 8, 12 and 24. HIV-1-RNA was measured in BP and SP using the Cobas 6800 system (Roche Diagnostics) with a lower detection limit of 20 copies/mL. The primary efficacy endpoint was the proportion of subjects with undetectable SP HIV-1-RNA at Week 12 by intention-to-treat analysis. RESULTS Fifteen participants in the DTG + TAF/FTC and 16 in the dolutegravir/lamivudine arms were analysed, with basal SP viral load of 4.81 (4.30-5.43) and 4.76 (4.09-5.23), P = 0.469, respectively. At Week 12, only one participant in each treatment arm had a detectable SP HIV-1-RNA (DTG + TAF/FTC, 141 copies/mL; dolutegravir/lamivudine, 61 copies/mL). Based on the estimated means, there was no significant difference in the decay of HIV-1-RNA in both BP and SP over time between the two arms of treatment (F = 0.452, P = 0.662, and F = 1.147, P = 0.185, respectively). CONCLUSIONS After 12 weeks of treatment, there were no differences in the percentage of undetectable SP HIV-1-RNA in naive PLWH who started dolutegravir/lamivudine compared with DTG + TAF/FTC.
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Affiliation(s)
- Abraham Saborido-Alconchel
- Infectious Diseases and Microbiology Clinical Unit. Instituto de Biomedicina de Sevilla/University Hospital Virgen del Rocío/CSIC/Universidad de Sevilla. Sevilla. Spain
| | - Ana Serna-Gallego
- Infectious Diseases and Microbiology Clinical Unit. Instituto de Biomedicina de Sevilla/University Hospital Virgen del Rocío/CSIC/Universidad de Sevilla. Sevilla. Spain
| | - Luis E Lopez-Cortes
- Infectious Diseases and Microbiology Clinical Unit (Department of Medicine, School of Medicine). Instituto de Biomedicina de Sevilla/University Hospital Virgen. Seville. Spain. Macarena/CSIC/Universidad de Sevilla. CIBERINFEC, Instituto de Salud Carlos III, Madrid, Spain
| | - María Trujillo-Rodriguez
- Infectious Diseases and Microbiology Clinical Unit. Instituto de Biomedicina de Sevilla/University Hospital Virgen del Rocío/CSIC/Universidad de Sevilla. Sevilla. Spain
| | | | - Montserrat Dominguez-Macias
- Infectious Diseases and Microbiology Clinical Unit. Instituto de Biomedicina de Sevilla/University Hospital Virgen del Rocío/CSIC/Universidad de Sevilla. Sevilla. Spain
| | - Carmen Lozano
- Infectious Diseases and Microbiology Clinical Unit. Instituto de Biomedicina de Sevilla/University Hospital Virgen del Rocío/CSIC/Universidad de Sevilla. Sevilla. Spain
| | - Esperanza Muñoz-Muela
- Infectious Diseases and Microbiology Clinical Unit. Instituto de Biomedicina de Sevilla/University Hospital Virgen del Rocío/CSIC/Universidad de Sevilla. Sevilla. Spain
| | - Nuria Espinosa
- Infectious Diseases and Microbiology Clinical Unit. Instituto de Biomedicina de Sevilla/University Hospital Virgen del Rocío/CSIC/Universidad de Sevilla. Sevilla. Spain
| | - Cristina Roca-Oporto
- Infectious Diseases and Microbiology Clinical Unit. Instituto de Biomedicina de Sevilla/University Hospital Virgen del Rocío/CSIC/Universidad de Sevilla. Sevilla. Spain
| | - Cesar Sotomayor
- Infectious Diseases and Microbiology Clinical Unit. Instituto de Biomedicina de Sevilla/University Hospital Virgen del Rocío/CSIC/Universidad de Sevilla. Sevilla. Spain
| | - Marta Herrero
- Infectious Diseases and Microbiology Clinical Unit. Instituto de Biomedicina de Sevilla/University Hospital Virgen del Rocío/CSIC/Universidad de Sevilla. Sevilla. Spain
| | - Alicia Gutierrez-Valencia
- Infectious Diseases and Microbiology Clinical Unit. Instituto de Biomedicina de Sevilla/University Hospital Virgen del Rocío/CSIC/Universidad de Sevilla. Sevilla. Spain
| | - Luis F Lopez-Cortes
- Infectious Diseases and Microbiology Clinical Unit. Instituto de Biomedicina de Sevilla/University Hospital Virgen del Rocío/CSIC/Universidad de Sevilla. Sevilla. Spain
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Kawuma AN, Wasmann RE, Sinxadi P, Sokhela SM, Chandiwana N, Venter WDF, Wiesner L, Maartens G, Denti P. Population pharmacokinetics of tenofovir given as either tenofovir disoproxil fumarate or tenofovir alafenamide in an African population. CPT Pharmacometrics Syst Pharmacol 2023; 12:821-830. [PMID: 37013631 PMCID: PMC10272303 DOI: 10.1002/psp4.12955] [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: 08/24/2022] [Revised: 02/13/2023] [Accepted: 02/20/2023] [Indexed: 04/05/2023] Open
Abstract
Tenofovir disoproxil fumarate (TDF) and tenofovir alafenamide (TAF) are prodrugs of the nucleotide analogue tenofovir, which acts intracellularly to inhibit HIV replication. Whereas TDF converts to tenofovir in plasma and may cause kidney and bone toxicity, TAF mostly converts to tenofovir intracellularly, so it can be administered at lower doses. TAF leads to lower tenofovir plasma concentrations and lower toxicity, but there are limited data on its use in Africa. We used data from 41 South African adults living with HIV from the ADVANCE trial and described, with a joint model, the population pharmacokinetics of tenofovir given as TAF or TDF. The TDF was modeled to appear in plasma as tenofovir with a simple first-order process. Instead, two parallel pathways were used for a TAF dose: an estimated 32.4% quickly appeared as tenofovir into the systemic circulation with first-order absorption, whereas the rest was sequestered intracellularly and released into the systemic circulation as tenofovir slowly. Once in plasma (from either TAF or TDF), tenofovir disposition followed two-compartment kinetics and had a clearance of 44.7 L/h (40.2-49.5), for a typical 70-kg individual. This semimechanistic model describes the population pharmacokinetics of tenofovir when dosed as either TDF or TAF in an African population living with HIV and can be used as a tool for exposure prediction in patients, and to simulate alternative regimes to inform further clinical trials.
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Affiliation(s)
- Aida N. Kawuma
- Division of Clinical Pharmacology, Department of MedicineUniversity of Cape TownCape TownSouth Africa
- Infectious Diseases InstituteMakerere University College of Health SciencesKampalaUganda
| | - Roeland E. Wasmann
- Division of Clinical Pharmacology, Department of MedicineUniversity of Cape TownCape TownSouth Africa
| | - Phumla Sinxadi
- Division of Clinical Pharmacology, Department of MedicineUniversity of Cape TownCape TownSouth Africa
| | - Simiso M. Sokhela
- Ezintsha, Faculty of Health SciencesUniversity of the WitwatersrandJohannesburgSouth Africa
| | - Nomathemba Chandiwana
- Ezintsha, Faculty of Health SciencesUniversity of the WitwatersrandJohannesburgSouth Africa
| | - Willem D. F. Venter
- Ezintsha, Faculty of Health SciencesUniversity of the WitwatersrandJohannesburgSouth Africa
| | - Lubbe Wiesner
- Division of Clinical Pharmacology, Department of MedicineUniversity of Cape TownCape TownSouth Africa
| | - Gary Maartens
- Division of Clinical Pharmacology, Department of MedicineUniversity of Cape TownCape TownSouth Africa
| | - Paolo Denti
- Division of Clinical Pharmacology, Department of MedicineUniversity of Cape TownCape TownSouth Africa
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Ibrahim ME, Castillo-Mancilla JR, Yager J, Brooks KM, Bushman L, Saba L, Kiser JJ, MaWhinney S, Anderson PL. Individualized Adherence Benchmarks for HIV Pre-Exposure Prophylaxis. AIDS Res Hum Retroviruses 2021; 37:421-428. [PMID: 33191774 PMCID: PMC8213008 DOI: 10.1089/aid.2020.0108] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Tenofovir diphosphate (TFV-DP) concentrations measured with dried blood spots (DBS) can be used to classify adherence to emtricitabine/tenofovir disoproxil fumarate (F/TDF) for HIV pre-exposure prophylaxis (PrEP). A TFV-DP of 700 fmol/punch was previously associated with high PrEP efficacy, and was estimated to represent ≥4 doses/week on average. However, interindividual variability in TFV-DP concentrations may lead to adherence misclassification and decrease the precision of adherence-efficacy relationships. The purpose of this analysis was to evaluate sources of TFV-DP variability to improve the precision of TFV-DP for adherence assessments by incorporating individual characteristics. Data and samples from a 36-week study of TFV-DP in DBS, collected biweekly, among 48 HIV-negative volunteers (25 Females/26 Caucasian/10 African American/14 Hispanic) receiving F/TDF at 33%, 67%, and 100% of daily dosing under directly observed therapy were used for analysis. The simplest pharmacokinetic model to describe TFV-DP accumulation with acceptable performance was a one-compartment constant input model. Covariates, including laboratory values and demographics were ranked in importance of their association with post hoc pharmacokinetic (PK) parameters using random forest analyses. Weight and platelet count were included in the final model and simulations were conducted to generate benchmarks for <2, 2-3, 4-5, and 6-7 doses/week. Based on these simulations, the previously established protective TFV-DP concentration of ≥700 fmol/punch was observed in those taking 2-3 (in individuals ≤110 kg) and ≥4 (in individuals >110 kg) doses/week, amounting to a much lower rate of misspecification (17% vs. 30%) with this individualized model versus previous interpretations. Incorporating body weight and platelet count improved the precision of TFV-DP concentrations for adherence assessments. Previous benchmarks were conservative, indicating that the pharmacological forgiveness of F/TDF may be higher than currently recognized and supports continued investigation of intermittent PrEP dosing regimens. Clinical Trial Registration number, NCT02022657.
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Affiliation(s)
- Mustafa E. Ibrahim
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado, Aurora, Colorado, USA
| | - Jose R. Castillo-Mancilla
- Department of Medicine, Division of Infectious Diseases, School of Medicine, University of Colorado, Aurora, Colorado, USA
| | - Jenna Yager
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado, Aurora, Colorado, USA
| | - Kristina M. Brooks
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado, Aurora, Colorado, USA
| | - Lane Bushman
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado, Aurora, Colorado, USA
| | - Laura Saba
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado, Aurora, Colorado, USA
| | - Jennifer J. Kiser
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado, Aurora, Colorado, USA
| | - Samantha MaWhinney
- Department of Biostatistics and Informatics, Colorado School of Public Health, University of Colorado, Aurora, Colorado, USA
| | - Peter L. Anderson
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado, Aurora, Colorado, USA
- Address correspondence to: Peter L. Anderson, Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, V20-C238, Room 4101, 12850 E. Montview Boulevard, Aurora, CO 80045, USA
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5
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Race/Ethnicity and Protease Inhibitor Use Influence Plasma Tenofovir Exposure in Adults Living with HIV-1 in AIDS Clinical Trials Group Study A5202. Antimicrob Agents Chemother 2019; 63:AAC.01638-18. [PMID: 30642925 DOI: 10.1128/aac.01638-18] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Accepted: 12/11/2018] [Indexed: 01/13/2023] Open
Abstract
AIDS Clinical Trial Group study A5202 (ClinicalTrials.gov identifier NCT00118898) was a phase 3b, randomized, partially blinded equivalence study of open-label atazanavir/ritonavir or efavirenz, plus either placebo-controlled tenofovir disoproxil fumarate/emtricitabine or abacavir/lamivudine, in treatment-naive adults living with HIV-1, evaluating efficacy, safety, and tolerability. We report an analysis of the contribution of participant characteristics to the disposition of tenofovir plasma concentrations. Tenofovir concentration data from a total of 817 individuals (88% of the total number of eligible patients randomly assigned to receive treatment in the TDF-containing arms of A5202) were available for analysis. Pharmacokinetic analysis was performed using nonlinear mixed-effects modeling. One- and two-compartment models with first-order absorption and first-order elimination were evaluated. An exponential error model was used for examination of interindividual variability (IIV), and a proportional and mixed-error model was assessed for residual variability. The final structural model contained two compartments with first-order absorption and elimination. IIV was estimated for apparent clearance (CL/F) and the first-order absorption rate constant (ka ), and a proportional residual variability model was selected. The final mean parameter estimates were as follows: ka = 2.87 h-1, CL/F = 37.2 liters/h, apparent volumes of the central and peripheral compartments = 127 and 646 liters, respectively, and apparent intercompartmental clearance = 107 liters/h. In addition to race/ethnicity, creatinine clearance and assignment to atazanavir/ritonavir or efavirenz were significantly associated with CL/F (P < 0.001). In conclusion, race/ethnicity is associated with tenofovir oral CL in HIV-1 positive, treatment-naive adults. This covariate relationship raises questions about the possibility of differences in efficacy and risk of adverse events in different patient populations and suggests that examining preexposure prophylaxis regimens and tenofovir exposure in different race/ethnicity groups be considered.
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Lê MP, Chaix ML, Raffi F, Chevret S, Gallien S, Katlama C, Delobel P, Yazdanpanah Y, Saillard J, Molina JM, Peytavin G. Once-daily darunavir/ritonavir 400/100 mg in triple therapy: efficacy and penetration in seminal compartment in ANRS-165 DARULIGHT study. Br J Clin Pharmacol 2018; 85:277-280. [PMID: 30421447 DOI: 10.1111/bcp.13796] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Revised: 09/28/2018] [Accepted: 10/12/2018] [Indexed: 12/31/2022] Open
Affiliation(s)
- Minh P Lê
- IAME, UMR 1137, Université Paris Diderot, Sorbonne Paris Cité and INSERM, Paris, France.,AP-HP, Hôpital Bichat-Claude Bernard, Laboratoire de Pharmacologie-Toxicologie, Paris, France
| | - Marie-Laure Chaix
- AP-HP, Hôpital Saint Louis, Laboratoire de Virologie, INSERM U941, Université Denis Diderot Paris VII, F-75010, Paris, France
| | - François Raffi
- Department of Infectious Diseases, Hotel-Dieu Hospital, INSERM CIC 1413, Nantes University Hospital, Nantes, France
| | | | - Sébastien Gallien
- AP-HP, CHU Henri Mondor, Service d'Immunologie Clinique et Maladies Infectieuses, Créteil, France
| | - Christine Katlama
- AP-HP, Hôpital Pitié-Salpêtrière, Service de Maladies Infectieuses et Tropicales, Paris, France
| | - Pierre Delobel
- CHU de Toulouse, Service de Maladies Infectieuses et Tropicales, Toulouse, France
| | - Yazdan Yazdanpanah
- IAME, UMR 1137, Université Paris Diderot, Sorbonne Paris Cité and INSERM, Paris, France.,AP-HP, Hôpital Bichat-Claude Bernard, Service de Maladies Infectieuses et Tropicales, Paris, France
| | - Juliette Saillard
- France Recherche Nord & Sud SIDA-HIV Hépatites (ANRS), Paris, France
| | - Jean-Michel Molina
- AP-HP, Hôpital Saint Louis, Service de Maladies Infectieuses et Tropicales, INSERM U941, Université Denis Diderot Paris VII, F-75010, Paris, France
| | - Gilles Peytavin
- IAME, UMR 1137, Université Paris Diderot, Sorbonne Paris Cité and INSERM, Paris, France.,AP-HP, Hôpital Bichat-Claude Bernard, Laboratoire de Pharmacologie-Toxicologie, Paris, France
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