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Vasudevan A, Ardalan ZS, Ahmed N, Apostolov R, Gow PJ, Testro AG, Gane EJ, Angus PW. Long-term safety and efficacy of tenofovir disoproxil fumarate substitution for hepatitis B immunoglobulin following liver transplantation. JGH OPEN 2018; 2:288-294. [PMID: 30619939 PMCID: PMC6308096 DOI: 10.1002/jgh3.12086] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Revised: 07/23/2018] [Accepted: 07/27/2018] [Indexed: 01/12/2023]
Abstract
Background and Aims Limitations to the use of long‐term Hepatitis B Immunoglobulin (HBIg) following liver transplantation for hepatitis B (HBV) have led to the substitution of HBIg with oral nucleo(s)tide analogue prophylaxis. We prospectively assessed the long‐term safety and efficacy of switching to tenofovir disoproxil fumarate (TDF) from HBIg. Methods An open‐label, multicenter switch study was conducted to evaluate the substitution of TDF for HBIg whilst continuing lamivudine (LAM) therapy in preventing the recurrence of HBV in patients who had been maintained as hepatitis B surface antigen (HBsAg)‐negative posttransplantation for at least 12 months. Results Eighteen patients were enrolled (median age 66 years, range 42–78 years); 84% were male, and 78% on calcineurin inhibitors. Median time after transplantation was 14 years (range 5–19), and median duration of HBIg/LAM prior to the switch was 10 years (range 1–14). Median follow‐up was 5 years (range 5–8). Of 18 patients, 16 (89%) remained HBsAg and HBV DNA negative at the end of follow‐up. Two patients had re‐emergence of HBsAg without a detectable HBV DNA and no clinical sequelae. Creatinine clearance significantly reduced (median 59 mL/min to 51 mL/min, P = 0.03), necessitating dose reduction of TDF in six (33%) participants, with two eventually ceasing TDF. One patient switched back to HBIg by choice. All patients who changed therapy maintained an undetectable HBsAg. Conclusion Substitution of HBIg with TDF in patients on LAM is well tolerated and effective for the long‐term prevention of HBV recurrence posttransplantation. Renal dysfunction occurs frequently in the posttransplant setting and can require dose adjustment of TDF or change of therapy.
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Affiliation(s)
| | - Zaid S Ardalan
- Liver Transplant Unit Victoria Austin Health Melbourne Australia
| | - Navera Ahmed
- Liver Transplant Unit Victoria Austin Health Melbourne Australia
| | - Ross Apostolov
- Liver Transplant Unit Victoria Austin Health Melbourne Australia
| | - Paul J Gow
- Liver Transplant Unit Victoria Austin Health Melbourne Australia
| | - Adam G Testro
- Liver Transplant Unit Victoria Austin Health Melbourne Australia
| | - Ed J Gane
- New Zealand Liver Transplant Unit Auckland City Hospital New Zealand
| | - Peter W Angus
- Liver Transplant Unit Victoria Austin Health Melbourne Australia
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Garrett KL, Chen J, Maas BM, Cottrell ML, Prince HA, Sykes C, Schauer AP, White N, Dumond JB. A Pharmacokinetic/Pharmacodynamic Model to Predict Effective HIV Prophylaxis Dosing Strategies for People Who Inject Drugs. J Pharmacol Exp Ther 2018; 367:245-251. [PMID: 30150483 DOI: 10.1124/jpet.118.251009] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Accepted: 08/22/2018] [Indexed: 11/22/2022] Open
Abstract
The goal of this work was to evaluate dosing strategies for tenofovir disoproxil fumarate (TDF), tenofovir alafenamide (TAF), and emtricitabine (FTC) for pre-exposure prophylaxis (PrEP) with injection drug use with a pharmacokinetic/pharmacodynamics analysis of concentration data generated from two single-dose clinical studies conducted in healthy women. Population pharmacokinetic models were developed using measured intracellular metabolite, endogenous nucleotide competitors, and extracellular parent drug concentrations. Intracellular metabolite concentrations were normalized to endogenous competitors and compared with an EC90 target for PrEP efficacy. Monte Carlo simulations were used to select effective dose strategies of single agents (TAF, TDF, and FTC) and combinations (TDF + FTC and TAF + FTC). Daily, intermittent, and event-driven dosing regimens at varying dosage amounts were explored. When combined, TDF + FTC and TAF + FTC both provided quick (0.5 hours) and durable (up to 84 and 108 hours, respectively) protection of ≥99% after a single dose. When dosed twice per week, protection remained at 100%. Single-agent regimens provided lower estimates of protection than either combination tested. Here, the application of pharmacokinetic modeling to in vitro target concentrations demonstrates the added utility of including FTC in a successful PrEP regimen. While no TAF-based PrEP data are currently available for comparison, this analysis suggests TAF + FTC could completely protect against percutaneous exposure with as little as two doses per week.
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Affiliation(s)
- Katy L Garrett
- Division of Pharmacotherapy and Experimental Therapeutics, UNC Eshelman School of Pharmacy (K.L.G., J.C., B.M.M., M.L.C., C.S., A.P.S., J.B.D.), and School of Medicine (H.A.P., N.W.), University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Jingxian Chen
- Division of Pharmacotherapy and Experimental Therapeutics, UNC Eshelman School of Pharmacy (K.L.G., J.C., B.M.M., M.L.C., C.S., A.P.S., J.B.D.), and School of Medicine (H.A.P., N.W.), University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Brian M Maas
- Division of Pharmacotherapy and Experimental Therapeutics, UNC Eshelman School of Pharmacy (K.L.G., J.C., B.M.M., M.L.C., C.S., A.P.S., J.B.D.), and School of Medicine (H.A.P., N.W.), University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Mackenzie L Cottrell
- Division of Pharmacotherapy and Experimental Therapeutics, UNC Eshelman School of Pharmacy (K.L.G., J.C., B.M.M., M.L.C., C.S., A.P.S., J.B.D.), and School of Medicine (H.A.P., N.W.), University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Heather A Prince
- Division of Pharmacotherapy and Experimental Therapeutics, UNC Eshelman School of Pharmacy (K.L.G., J.C., B.M.M., M.L.C., C.S., A.P.S., J.B.D.), and School of Medicine (H.A.P., N.W.), University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Craig Sykes
- Division of Pharmacotherapy and Experimental Therapeutics, UNC Eshelman School of Pharmacy (K.L.G., J.C., B.M.M., M.L.C., C.S., A.P.S., J.B.D.), and School of Medicine (H.A.P., N.W.), University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Amanda P Schauer
- Division of Pharmacotherapy and Experimental Therapeutics, UNC Eshelman School of Pharmacy (K.L.G., J.C., B.M.M., M.L.C., C.S., A.P.S., J.B.D.), and School of Medicine (H.A.P., N.W.), University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Nicole White
- Division of Pharmacotherapy and Experimental Therapeutics, UNC Eshelman School of Pharmacy (K.L.G., J.C., B.M.M., M.L.C., C.S., A.P.S., J.B.D.), and School of Medicine (H.A.P., N.W.), University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Julie B Dumond
- Division of Pharmacotherapy and Experimental Therapeutics, UNC Eshelman School of Pharmacy (K.L.G., J.C., B.M.M., M.L.C., C.S., A.P.S., J.B.D.), and School of Medicine (H.A.P., N.W.), University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
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103
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Hagins D, Orkin C, Daar ES, Mills A, Brinson C, DeJesus E, Post FA, Morales-Ramirez J, Thompson M, Osiyemi O, Rashbaum B, Stellbrink HJ, Martorell C, Liu H, Liu YP, Porter D, Collins SE, SenGupta D, Das M. Switching to coformulated rilpivirine (RPV), emtricitabine (FTC) and tenofovir alafenamide from either RPV, FTC and tenofovir disoproxil fumarate (TDF) or efavirenz, FTC and TDF: 96-week results from two randomized clinical trials. HIV Med 2018; 19:724-733. [PMID: 30101539 PMCID: PMC6221083 DOI: 10.1111/hiv.12664] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/18/2018] [Indexed: 01/23/2023]
Abstract
Objectives The single‐tablet regimen rilpivirine, emtricitabine and tenofovir alafenamide (RPV/FTC/TAF) for treatment of HIV‐1‐infected adults was approved based on bioequivalence. We assessed the clinical efficacy, safety and tolerability of switching to RPV/FTC/TAF from either RPV/FTC/tenofovir disoproxil fumarate (TDF) or efavirenz (EFV)/FTC/TDF. Methods We conducted two distinct randomized, double‐blind, active‐controlled, noninferiority trials in participants taking RPV/FTC/TDF (Study 1216) and EFV/FTC/TDF (Study 1160). Each study randomized virologically suppressed (HIV‐1 RNA < 50 copies/mL) adults (1:1) to switch to RPV/FTC/TAF or continue their current regimen for 96 weeks. We evaluated efficacy as the proportion with HIV‐1 RNA < 50 copies/mL using the Food and Drug Administration snapshot algorithm and prespecified bone and renal endpoints at week 96. Results We randomized and treated 630 participants in Study 1216 (RPV/FTC/TAF, n = 316; RPV/FTC/TDF, n = 314) and 875 in Study 1160 (RPV/FTC/TAF, n = 438; EFV/FTC/TDF, n = 437). In both studies, the efficacy of switching to RPV/FTC/TAF was noninferior to that of continuing baseline therapy at week 96, with respective percentages of patients with HIV RNA < 50 copies/mL being 89.2% versus 88.5% in Study 1216 [difference 0.7%; 95% confidence interval (CI) −4.3 to +5.8%] and 85.2% versus 85.1% in Study 1160 (difference 0%; 95% CI −4.8 to +4.8%). No participant on RPV/FTC/TAF developed treatment‐emergent resistance versus two on EFV/FTC/TDF and one on RPV/FTC/TDF. Compared with continuing baseline therapy, significant improvements in bone mineral density and renal tubular markers were observed in the RPV/FTC/TAF groups (P < 0.001). Conclusions Switching to RPV/FTC/TAF from RPV/FTC/TDF or EFV/FTC/TDF was safe and effective and improved bone mineral density and renal biomarkers up to 96 weeks with no cases of treatment‐emergent resistance.
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Affiliation(s)
- D Hagins
- Georgia Department of Public Health, Chatham Care Center, Savannah, GA, USA
| | - C Orkin
- Grahame Hayton Unit, Royal London Hospital and Queen Mary University, London, UK
| | - E S Daar
- Los Angeles Biomedical Research Institute at Harbor-UCLA Medical Center, Torrance, CA, USA
| | - A Mills
- Mills Clinical Research, Los Angeles, CA, USA
| | - C Brinson
- Central Texas Clinical Research, Austin, TX, USA
| | - E DeJesus
- Orlando Immunology Center, Orlando, FL, USA
| | - F A Post
- King's College Hospital, London, UK
| | | | - M Thompson
- AIDS Research Consortium of Atlanta, Atlanta, GA, USA
| | - O Osiyemi
- Triple O Research Institute PA, West Palm Beach, FL, USA
| | - B Rashbaum
- Capital Medical Associates, Washington, DC, USA
| | | | - C Martorell
- The Research Institute, Springfield, MA, USA
| | - H Liu
- Gilead Sciences Inc, Foster City, CA, USA
| | - Y-P Liu
- Gilead Sciences Inc, Foster City, CA, USA
| | - D Porter
- Gilead Sciences Inc, Foster City, CA, USA
| | | | - D SenGupta
- Gilead Sciences Inc, Foster City, CA, USA
| | - M Das
- Gilead Sciences Inc, Foster City, CA, USA
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104
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Serota DP, Franch HA, Cartwright EJ. Acute Kidney Injury in a Patient on Tenofovir Alafenamide Fumarate After Initiation of Treatment for Hepatitis C Virus Infection. Open Forum Infect Dis 2018; 5:ofy189. [PMID: 30151414 PMCID: PMC6101585 DOI: 10.1093/ofid/ofy189] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Accepted: 07/29/2018] [Indexed: 12/27/2022] Open
Abstract
HIV treatment with tenofovir alafenamide fumarate (TAF) has decreased renal toxicity compared with tenofovir disoproxil fumarate in clinical trials. We report the case of a patient with HIV/HCV coinfection who was started on a TAF-based HIV regimen and developed acute kidney injury that worsened with the addition of sofosbuvir-ledipasvir.
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Affiliation(s)
- David P Serota
- Division of Infectious Diseases, Department of Medicine, Emory University, Atlanta, Georgia
| | - Harold A Franch
- Atlanta VA Medical Center, Veterans Health Administration, Atlanta, Georgia.,Division of Renal Medicine, Department of Medicine, Emory University, Atlanta, Georgia
| | - Emily J Cartwright
- Division of Infectious Diseases, Department of Medicine, Emory University, Atlanta, Georgia.,Atlanta VA Medical Center, Veterans Health Administration, Atlanta, Georgia
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105
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Gallien S, Massetti M, Flandre P, Leleu H, Descamps D, Lazaro E. Comparison of 48-week efficacies of elvitegravir/cobicistat/emtricitabine/tenofovir alafenamide and nucleoside/nucleotide reverse transcriptase inhibitor-sparing regimens: a systematic review and network meta-analysis. HIV Med 2018; 19:559-571. [PMID: 30004176 DOI: 10.1111/hiv.12643] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/17/2018] [Indexed: 02/01/2023]
Abstract
OBJECTIVES To compare nucleoside/nucleotide reverse transcriptase inhibitor (NRTI)-sparing regimens with tenofovir alafenamide (TAF)-based combinations in HIV-1-infected adults, we performed a network meta-analysis (NMA) to provide estimates of relative efficacy for these two regimens. METHODS A systematic literature review (SLR) was performed to identify phase 3/4 randomized controlled clinical trials evaluating the efficacy of commonly used combination antiretroviral therapy (cART) including an NRTI backbone or that of commonly used NRTI-sparing regimens. A Bayesian random-effect model was used to compare virological suppression rates at 48 weeks for NRTI-sparing regimens and elvitegravir/cobicistat/emtricitabine/TAF (E/C/F/TAF). RESULTS Twenty-three studies in treatment-naïve patients identified by the SLR were included in the NMA, including four studies assessing NRTI-sparing regimens. In treatment-naïve patients, the probability of achieving virological suppression at 48 weeks was between 40% and 60% higher with E/C/F/TAF than with NRTI-sparing strategies. The credible interval vs. darunavir/ritonavir (DVR/r) + raltegravir (RAL) and LPV/r monotherapy did not include 1. In the subgroup of naïve patients with viral load < 100 000 HIV-1 RNA copies/mL, a credible difference was found between NRTI-sparing treatments and E/C/F/TAF. Studies in treatment-experienced patients were too heterogeneous to allow for an NMA. CONCLUSIONS The NMA results suggest that E/C/F/TAF represents a more effective option than NRTI-sparing regimens in terms of 48-week efficacy in treatment-naïve patients. Furthermore, TAF pharmacological properties, as well as tolerability results in clinical studies, suggest a safety profile similar to that of NRTI-sparing regimens. Thus, the E/C/F/TAF combination might represent a more appropriate option than NRTI-sparing regimens for initiation of antiretroviral therapy in treatment-naïve HIV-infected patients.
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Affiliation(s)
- S Gallien
- Henri Mondor University Hospital, Créteil, France
- University of Paris-Est Créteil Val de Marne Medical School, Créteil, France
| | | | - P Flandre
- INSERM Sorbonne University, UPMC University Paris 06, UMR-S 1136, Pierre Louis Institute of Epidemiology and Public Health, Paris, France
| | - H Leleu
- Public Health Expertise, Paris, France
| | - D Descamps
- Bichat Claude Bernard University Hospital, Paris, France
- University Paris Diderot Medical School, Paris, France
| | - E Lazaro
- Bordeaux University Hospital, Bordeaux, France
- University of Bordeaux, Bordeaux, France
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106
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Mothobi NZ, Masters J, Marriott DJ. Fanconi syndrome due to tenofovir disoproxil fumarate reversed by switching to tenofovir alafenamide fumarate in an HIV-infected patient. Ther Adv Infect Dis 2018; 5:91-95. [PMID: 30224952 DOI: 10.1177/2049936118785497] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Accepted: 05/29/2018] [Indexed: 12/26/2022] Open
Abstract
A case of tenofovir-induced Fanconi syndrome in a patient receiving antiretroviral therapy for HIV infection, with resolution of the related electrolyte abnormalities upon switch from tenofovir disoproxil fumarate to tenofovir alafenamide fumarate, is reported. Tenofovir alafenamide fumarate, a novel prodrug of tenofovir containing significantly lower doses of tenofovir than tenofovir disoproxil fumarate, has been associated with a favourable renal profile compared to tenofovir disoproxil fumarate. Generally, the rare complication of tenofovir disoproxil fumarate-induced Fanconi syndrome is managed by cessation of tenofovir. There are limited reports of the impact of a switch strategy from tenofovir disoproxil fumarate to tenofovir alafenamide fumarate, which may be necessary in patients unable to discontinue tenofovir.
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Affiliation(s)
- Nomvuyo Z Mothobi
- Department of HIV, Immunology and Infectious Diseases; Department of Microbiology, St. Vincent's Hospital, NSW, Australia
| | - Jeffrey Masters
- Department of HIV, Immunology and Infectious Diseases, St. Vincent's Hospital, Darlinghurst, NSW, Australia
| | - Deborah J Marriott
- Department of HIV, Immunology and Infectious Diseases; Department of Microbiology, St. Vincent's Hospital, Darlinghurst, NSW, Australia
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Wright E, Grulich A, Roy K, Boyd M, Cornelisse V, Russell D, O'Donnell D, Whittaker B, Crooks L, Zablotska I. Australasian Society for HIV, Viral Hepatitis and Sexual Health Medicine HIV pre-exposure prophylaxis: clinical guidelines. Update April 2018. J Virus Erad 2018. [DOI: 10.1016/s2055-6640(20)30260-0] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Knapper C, Birley H, Couzens Z, Jones AT, Parker I. How to do it: setting up a PrEP service in an integrated sexual reproductive health service setting. Sex Transm Infect 2018; 94:327-330. [PMID: 29950377 DOI: 10.1136/sextrans-2018-053561] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Revised: 04/29/2018] [Accepted: 05/20/2018] [Indexed: 12/26/2022] Open
Abstract
Pre-exposure prophylaxis for HIV (PrEP) has been shown to reduce transmission of HIV in a number of trials; however, there is limited evidence regarding the optimal way to deliver PrEP through pre-existing UK services, particularly through fully integrated drop-in sexual health service models. PrEP in the form of Truvada was launched in Wales in July 2017. We set up a PrEP service to be delivered via our drop-in integrated sexual reproductive health service. In the first 5 months of PrEP service provision, we found unforeseen levels of comorbidity, polypharmacy and renal impairment in our cohort of PrEP patients. As a result, we have altered our service model and all patients are now followed up in booked appointment PrEP clinics run by members of the HIV team. Those patients with estimated glomerular filtration rate (eGFR) of 60-70 mL/min or with eGFR of 60-80 mL/min and with comorbidities impacting on renal function are monitored every 4-6 weeks initially, and PrEP has been incorporated into our pre-existing virtual HIV renal clinic for discussion with a renal physician. The PrEP team clinicians report that monitoring and managing the PrEP cohort is now easier in its appointment-only format, although some patients have reported that they would prefer a drop-in system.
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Affiliation(s)
- Carys Knapper
- Aneurin Bevan University Health Board, Cordell Centre, Royal Gwent Hospital, Newport, UK
| | - Humphrey Birley
- Aneurin Bevan University Health Board, Cordell Centre, Royal Gwent Hospital, Newport, UK
| | | | | | - Irene Parker
- Aneurin Bevan University Health Board, Cordell Centre, Royal Gwent Hospital, Newport, UK
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Quiros-Roldan E, Magro P, Raffetti E, Izzo I, Borghetti A, Lombardi F, Saracino A, Maggiolo F, Castelli F. Biochemical and inflammatory modifications after switching to dual antiretroviral therapy in HIV-infected patients in Italy: a multicenter retrospective cohort study from 2007 to 2015. BMC Infect Dis 2018; 18:285. [PMID: 29940869 PMCID: PMC6020212 DOI: 10.1186/s12879-018-3198-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Accepted: 06/19/2018] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Triple-drug regimens are the gold standard for HIV therapy. Nucleos(t)ide reverse transcriptase inhibitors (NRTIs) reducing regimens are used to decrease drugs toxicity, exposure and costs. Aim of our study was to evaluate trends of biochemical and inflammatory indices in patients switching to dual therapy (DT). METHODS We included patients that a) switched to a DT from 2007 to 2015 from a tenofovir/abacavir-based triple regimen b) previously maintained a triple and c) subsequently a dual regimen for 12 months with virological suppression. We retrieved data measured at 5 points (at the switch, 6 and 12 months before and after switch). We used platelet-to-lymphocyte ratio (PLR), neutrophil-to-lymphocyte ratio (NLR) and CD4/CD8 ratio as inflammatory indices. We assessed temporal trends of viro-immunological, biochemical and inflammatory parameters. RESULTS Overall, 364 and 65 patients switched from a tenofovir- and an abacavir-triple regimen, respectively. In the tenofovir-reducing group, creatinine clearance and lipids raised after the switch. There was a significant increase in both CD4+ cells and CD4/CD8. CD8+ cells rose after the switch, while opposite trend was found for PLR. In the abacavir-reducing group total lipids showed a decrease during the first 6 months after the switch and then stabilized. An increase of CD4+ and a decrease of CD8+ cells was observed during the study period, although not statistically significant. While CD4/CD8 remained stable after simplification, PLR decreased significantly after 6 months, then returning to baseline. CD8+ cells increased in the tenofovir-reducing group despite a viro-immunological response. Intriguingly, PLR decreased, maintaining this trend for 12 and 6 months after tenofovir and abacavir interruption respectively. CONCLUSIONS Increased PLR has been linked to hypercholesterolemia and metabolic-syndrome, while high CD8+ cells count to increased risk of non-AIDS-related events regardless of CD4 T-cell recovery and to virological failure. Whether these findings may have clinical implications, and which role DT plays on the immune system and on inflammation should be further investigated.
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Affiliation(s)
- Eugenia Quiros-Roldan
- Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy
| | - Paola Magro
- Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy
| | - Elena Raffetti
- Department of Public Health Sciences, Karolinska Institutet, Stockholm, Sweden
| | - Ilaria Izzo
- Infectious and Tropical Diseases Unit, Spedali Civili, Brescia, Italy
| | - Alessandro Borghetti
- Institute of Clinical Infectious Diseases, Catholic University of Sacred Heart, Rome, Italy
| | - Francesca Lombardi
- Institute of Clinical Infectious Diseases, Catholic University of Sacred Heart, Rome, Italy
| | - Annalisa Saracino
- Clinic of Infectious Diseases, University Hospital Policlinico, Bari, Italy
| | - Franco Maggiolo
- Division of Infectious Diseases, AO Giovanni XXIII, Bergamo, Italy
| | - Francesco Castelli
- Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy
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110
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Adefovir dipivoxil induced hypophosphatemic osteomalacia in chronic hepatitis B: a comparative study of Chinese and foreign case series. BMC Pharmacol Toxicol 2018; 19:23. [PMID: 29769119 PMCID: PMC5956546 DOI: 10.1186/s40360-018-0212-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2017] [Accepted: 04/30/2018] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Adefovir dipivoxil (ADV)-induced renal tubular dysfunction and hypophosphatemic osteomalacia (HO) have been given great consideration in the past few years. However, no standard guidance is available due to a lack of powerful evidence from appropriate long-term prospective case-control studies and variations in the definition of renal adverse events. The aim of this study is to clarify clinical features of ADV-related HO in Chinese chronic hepatitis B patients with long-term ADV treatment in Chinese and non-Chinese comparative case series. METHODS Retrieval of case reports was based on Pubmed, CNKI, Wan Fang and VIP databases using the key words adefovir dipivoxil, hypophosphatemia, osteomalacia and Fanconi syndrome. We divided patients into Chinese (C group) and Foreign (F group) groups according to their nationality. Comparisons involving demographics, clinical manifestations, tests, treatment and prognosis were conducted between the two groups. RESULTS Of the patients screened, 120 Chinese patients were identified in the C group, and 32 non-Chinese patients were identified in the F group. The average age of the C group was younger than that of the F group (51.89 years ±10.96 years versus 56.47 years ±11.36 years, t = - 2.084, P = 0.039). No significant difference was found in gender (male to female, 3.29:1 versus 3:1, χ 2 = 0.039, P = 0.844). Although there was no significant difference in the duration of ADV therapy before ostalgia onset, the C group tended to develop adverse events earlier, by 2-3 years, while the F group developed adverse events at 4-5 years (Z = - 1.517, P = 0.129). Prognosis was good after adjustment of the ADV dose and supplemental administration of phosphate and calcitriol. Time to resolution of tubular dysfunction was commenced at the first month, and Chinese patients were more prone to recover in the first 3 months than non-Chinese patients (91.3% of patients in the C group versus 56.3% in the F group, Z = - 3.013, P = 0.003). CONCLUSIONS Sufficient attention is required for middle-aged males before and during exposure to long-term ADV therapy, regardless of nationality. The clinical picture, laboratory and radiograph alterations are important clues for those patients and are usually characterized by polyarthralgia, renal tubular dysfunction and mineralization defects. Implementation of an early renal tubular injury index is recommended for patients with higher risk, which would prevent further renal injury.
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112
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Park J, Zuñiga JA. Chronic Kidney Disease in Persons Living with HIV: A Systematic Review. J Assoc Nurses AIDS Care 2018; 29:655-666. [PMID: 29751988 DOI: 10.1016/j.jana.2018.04.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2017] [Accepted: 04/11/2018] [Indexed: 12/11/2022]
Abstract
The purpose of our systematic review of research on chronic kidney disease (CKD) in persons living with HIV (PLWH) was to (a) compare and contrast diagnostic criteria for CKD, (b) identify risk factors of CKD in PLWH, and (c) elucidate the prevalence of CKD in PLWH. Keyword searches of PubMed and PsycInfo databases were followed by manual searches of references from 2000 through 2016; 21 studies met inclusion criteria. Sample sizes ranged from 8 to 15,140, with a mean age of 50 years, and represented diverse ethnicities/races and countries of origin. Fourteen studies were cross-sectional, six were cohort studies, and one was a case study. Major risk factors were related to hypertension, diabetes, and age. Prevalence ranged from 2.3% to 53.3% across a variety of countries and patient populations. The wide range in prevalence may have been due to differences in risk factors for the sample populations.
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DeJesus E, Haas B, Segal-Maurer S, Ramgopal MN, Mills A, Margot N, Liu YP, Makadzange T, McCallister S. Superior Efficacy and Improved Renal and Bone Safety After Switching from a Tenofovir Disoproxil Fumarate- to a Tenofovir Alafenamide-Based Regimen Through 96 Weeks of Treatment. AIDS Res Hum Retroviruses 2018; 34:337-342. [PMID: 29368537 DOI: 10.1089/aid.2017.0203] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
We previously demonstrated superior efficacy and safety advantages in HIV-infected, virologically suppressed adults switched to a regimen containing tenofovir alafenamide (TAF) as compared with those remaining on a tenofovir disoproxil fumarate (TDF) regimen through week 48. We now report long-term data through week 96. In this randomized, active-controlled, multicenter, open-label, noninferiority trial (ClinicalTrials.gov No. NCT01815736), we randomized virologically suppressed (HIV-1 RNA <50 copies/ml) adults (2:1) to receive a once-daily, single-tablet regimen containing elvitegravir (EVG), cobicistat (COBI), emtricitabine (FTC), and TAF group or to continue one of four TDF-containing regimens (TDF group) for 96 weeks. We evaluated efficacy (HIV-1 RNA <50 copies/ml using the FDA snapshot algorithm) and prespecified bone and renal endpoints at week 96. We randomized and treated 1,436 participants in this study (TAF n = 959, TDF n = 477). At week 96, TAF was superior to TDF in virologic efficacy, with 93% on TAF and 89% on TDF having HIV-1 RNA <50 copies/ml (difference 3.7%, 95% confidence interval: 0.4%-7.0%). Improvements in hip and spine bone mineral density for those assigned to TAF versus TDF continued through week 96 (p < .001). Significant improvements in urine protein or albumin to creatinine ratios were also seen among those in the TAF group versus TDF through week 96 (p < .001). There were no cases of investigator-reported proximal renal tubulopathy in the TAF group as compared with one case in the TDF group. Switching to EVG/COBI/FTC/TAF (E/C/F/TAF) was associated with statistically significant efficacy and safety advantages over remaining on a standard-of-care TDF-based regimen.
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Affiliation(s)
| | - Bernard Haas
- 2 Department für Gastroenterologie mit Infektiologie, LKH Graz South-West , Graz, Austria
| | - Sorana Segal-Maurer
- 3 Department of Infectious Diseases, NewYork-Presbyterian Queens , Flushing, New York
| | | | - Anthony Mills
- 5 Southern California Men's Medical Group , Los Angeles, California
| | | | - Ya-Pei Liu
- 6 Gilead Sciences, Inc. , Foster City, California
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Agarwal K, Brunetto M, Seto WK, Lim YS, Fung S, Marcellin P, Ahn SH, Izumi N, Chuang WL, Bae H, Sharma M, Janssen HLA, Pan CQ, Çelen MK, Furusyo N, Shalimar D, Yoon KT, Trinh H, Flaherty JF, Gaggar A, Lau AH, Cathcart AL, Lin L, Bhardwaj N, Suri V, Mani Subramanian G, Gane EJ, Buti M, Chan HLY. 96 weeks treatment of tenofovir alafenamide vs. tenofovir disoproxil fumarate for hepatitis B virus infection. J Hepatol 2018; 68:672-681. [PMID: 29756595 DOI: 10.1016/j.jhep.2017.11.039] [Citation(s) in RCA: 249] [Impact Index Per Article: 41.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Revised: 10/13/2017] [Accepted: 11/12/2017] [Indexed: 02/07/2023]
Abstract
BACKGROUND & AIMS Tenofovir alafenamide (TAF) is a new prodrug of tenofovir developed to treat patients with chronic hepatitis B virus (HBV) infection at a lower dose than tenofovir disoproxil fumarate (TDF) through more efficient delivery of tenofovir to hepatocytes. In 48-week results from two ongoing, double-blind, randomized phase III trials, TAF was non-inferior to TDF in efficacy with improved renal and bone safety. We report 96-week outcomes for both trials. METHODS In two international trials, patients with chronic HBV infection were randomized 2:1 to receive 25 mg TAF or 300 mg TDF in a double-blinded fashion. One study enrolled HBeAg-positive patients and the other HBeAg-negative patients. We assessed efficacy in each study, and safety in the pooled population. RESULTS At week 96, the differences in the rates of viral suppression were similar in HBeAg-positive patients receiving TAF and TDF (73% vs. 75%, respectively, adjusted difference -2.2% (95% CI -8.3 to 3.9%; p = 0.47), and in HBeAg-negative patients receiving TAF and TDF (90% vs. 91%, respectively, adjusted difference -0.6% (95% CI -7.0 to 5.8%; p = 0.84). In both studies the proportions of patients with alanine aminotransferase above the upper limit of normal at baseline, who had normal alanine aminotransferase at week 96 of treatment, were significantly higher in patients receiving TAF than in those receiving TDF. In the pooled safety population, patients receiving TAF had significantly smaller decreases in bone mineral density than those receiving TDF in the hip (mean % change -0.33% vs. -2.51%; p <0.001) and lumbar spine (mean % change -0.75% vs. -2.57%; p <0.001), as well as a significantly smaller median change in estimated glomerular filtration rate by Cockcroft-Gault method (-1.2 vs. -4.8 mg/dl; p <0.001). CONCLUSION In patients with HBV infection, TAF remained as effective as TDF, with continued improved renal and bone safety, two years after the initiation of treatment. Clinicaltrials.gov number: NCT01940471 and NCT01940341. LAY SUMMARY At week 96 of two ongoing studies comparing the efficacy and safety of tenofovir alafenamide (TAF) to tenofovir disoproxil fumarate (TDF) for the treatment of chronic hepatitis B patients, TAF continues to be as effective as TDF with continued improved renal and bone safety. Registration: Clinicaltrials.gov number: NCT01940471 and NCT01940341.
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Affiliation(s)
| | | | | | - Young-Suk Lim
- Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - Scott Fung
- Toronto General Hospital, Toronto, ON, Canada
| | | | | | | | - Wan-Long Chuang
- Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Ho Bae
- Asian Pacific Liver Center, St. Vincent Medical Center, Los Angeles, USA
| | - Manoj Sharma
- Institute of Liver and Biliary Sciences, New Delhi, India
| | - Harry L A Janssen
- Toronto Western Hospital, Toronto, ON, Canada; Erasmus Medical Center, Rotterdam, The Netherlands
| | - Calvin Q Pan
- NYU Langone Medical Center, NYU School of Medicine, New York, USA
| | | | | | - Dr Shalimar
- All India Institute of Medical Sciences, New Delhi, Delhi, India
| | - Ki Tae Yoon
- Pusan National University Yangsan Hospital, Yangsan, South Korea
| | - Huy Trinh
- San Jose Gastroenterology, San Jose, USA
| | | | | | | | | | | | | | | | | | | | - Maria Buti
- Hospital Universitario Valle Hebron, Barcelona, Spain
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115
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Courlet P, Spaggiari D, Cavassini M, Du Pasquier R, Alves Saldanha S, Buclin T, Marzolini C, Csajka C, Decosterd L. Determination of nucleosidic/tidic reverse transcriptase inhibitors in plasma and cerebrospinal fluid by ultra-high-pressure liquid chromatography coupled with tandem mass spectrometry. CLINICAL MASS SPECTROMETRY (DEL MAR, CALIF.) 2018; 8:8-20. [PMID: 39192990 PMCID: PMC11322778 DOI: 10.1016/j.clinms.2018.04.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Revised: 04/18/2018] [Accepted: 04/24/2018] [Indexed: 12/12/2022]
Abstract
Nucleoside reverse transcriptase inhibitors (NRTIs) have been the first class of antiretroviral drugs used against HIV infection. Despite NRTI-free regimens have been eagerly sought over the years in an effort for treatment simplification, NRTIs remain in most antiretroviral combination treatment. There has been generally a limited interest for their therapeutic drug monitoring, arguably because NRTIs levels measured in plasma poorly predict the concentration of pharmacologically active metabolites in cells. Plasma concentrations do impact cellular levels, while large differences between NRTIs have been found with regard to their ability to distribute into the cerebrospinal fluid (CSF) compartment. The renewed interest for the measurements of NRTIs concentrations in plasma and CSF was raised by ongoing efforts to understand some instances of toxicity or for determining their actual implication in the development of HIV-associated neurological disorders. In this context, a 5-min multiplex ultra-high-pressure chromatography tandem mass spectrometry (UHPLC-MS/MS) analysis in human plasma and CSF was developed for NRTIs used in clinical practice: abacavir, emtricitabine, lamivudine, tenofovir and zidovudine along with zidovudine glucuronide (Gln-ZDV). The 200-fold dilution of blank human plasma was shown to be a reliable surrogate matrix for quantification of NRTIs and Gln-ZDV in CSF. Both methodologies were fully validated over the clinically relevant concentrations, and satisfactorily fulfilled all parameters for bioanalytical methods validation. This sensitive, rapid, and robust UHPLC-MS/MS assay offers a methodology for increasing our understanding of the ability of NRTIs to cross the blood-brain barrier and their potential implication in neuropsychological disorders observed in HIV-infected patients.
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Affiliation(s)
- Perrine Courlet
- Laboratory and Service of Clinical Pharmacology, University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Dany Spaggiari
- Laboratory and Service of Clinical Pharmacology, University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Matthias Cavassini
- Service of Infectious Diseases, University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Renaud Du Pasquier
- Service of Neurology, University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Susana Alves Saldanha
- Laboratory and Service of Clinical Pharmacology, University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Thierry Buclin
- Service of Clinical Pharmacology, University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Catia Marzolini
- Departments of Medicine and Clinical Research, University Hospital and University of Basel, Basel, Switzerland
| | - Chantal Csajka
- Service of Clinical Pharmacology, University Hospital and University of Lausanne, Lausanne, Switzerland
- School of Pharmacy, University of Geneva, University of Lausanne, Geneva, Switzerland
| | - Laurent Decosterd
- Laboratory and Service of Clinical Pharmacology, University Hospital and University of Lausanne, Lausanne, Switzerland
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Chan L, Asriel B, Eaton EF, Wyatt CM. Potential kidney toxicity from the antiviral drug tenofovir: new indications, new formulations, and a new prodrug. Curr Opin Nephrol Hypertens 2018; 27:102-112. [PMID: 29278542 PMCID: PMC6103211 DOI: 10.1097/mnh.0000000000000392] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
PURPOSE OF REVIEW The antiviral agent tenofovir is highly effective for the treatment of HIV and hepatitis B virus infections, and the older prodrug tenofovir disoproxil fumarate (TDF) is also a component of daily preexposure prophylaxis (PrEP) to reduce the risk of HIV infection in high-risk populations. Although TDF is well tolerated, the potential for kidney and bone toxicity has important implications for public health given the large number of individuals exposed to TDF worldwide. This review summarizes the recent literature on kidney and bone health in individuals treated with TDF and the newer prodrug tenofovir alafenamide (TAF). RECENT FINDINGS Risk factors for TDF toxicity appear to be similar in patients treated for HIV or hepatitis B virus and in HIV-uninfected PrEP users, although drug-drug interactions are a more important concern in HIV-positive individuals. The risk of toxicity appears to be lower with TAF, but further studies are needed to confirm the safety of long-term use and to evaluate the efficacy of TAF-based PrEP. SUMMARY Nephrologists should be aware of the potential kidney and bone toxicity of TDF, as well as unique situations in which the newer prodrug TAF may contribute to kidney injury.
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Affiliation(s)
- Lili Chan
- Division of Nephrology, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Benjamin Asriel
- Division of Nephrology, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Ellen F Eaton
- Division of Infectious Diseases, Department of Medicine, University of Alabama Birmingham, Birmingham, Alabama, USA
| | - Christina M Wyatt
- Division of Nephrology, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, New York
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117
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Tang EC, Vittinghoff E, Anderson PL, Cohen SE, Doblecki-Lewis S, Bacon O, Coleman ME, Buchbinder SP, Chege W, Kolber MA, Elion R, Shlipak M, Liu AY. Changes in Kidney Function Associated With Daily Tenofovir Disoproxil Fumarate/Emtricitabine for HIV Preexposure Prophylaxis Use in the United States Demonstration Project. J Acquir Immune Defic Syndr 2018; 77:193-198. [PMID: 28991887 PMCID: PMC5762266 DOI: 10.1097/qai.0000000000001566] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND HIV preexposure prophylaxis (PrEP) using daily oral tenofovir-disoproxil-fumarate/emtricitabine (TDF/FTC) is effective for preventing HIV acquisition, but concerns remain about its potential kidney toxicity. This study examined kidney function in individuals using PrEP in real-world clinical settings. SETTING Demonstration project in 2 sexually transmitted infection clinics and a community health center. METHODS We evaluated kidney function among men who have sex with men and transgender women taking tenofovir-disoproxil-fumarate/emtricitabine PrEP for up to 48 weeks. Serum creatinine and urine dipstick for protein were obtained at 12-week intervals. Kidney function was estimated using creatinine clearance (CrCl) (Cockcroft-Gault) and estimated glomerular filtration rate (eGFR) (CKD-EPI). RESULTS From October 2012 to January 2014, we enrolled 557 participants (median age 33). Mean creatinine increased from baseline to week 12 by 0.03 mg/dL (4.6%) (P < 0.0001); mean CrCl decreased by 4.8 mL/min (3.0%) (P < 0.0001). These changes remained stable through week 48 (P = 0.81, P = 0.71 respectively). There were 75/478 (15.7%) participants who developed worsening proteinuria at week 12 compared with baseline (P < 0.0001), and this percent remained stable through week 48 (P = 0.73). Twenty-five participants (5.1%) developed new-onset eGFR <70 mL/min/1.73 m; independent predictors of this outcome were age ≥40 years (OR 3.79, 95% CI: 1.43 to 10.03) and baseline eGFR <90 mL/min/1.73 m (OR 9.59, 3.69-24.94). CONCLUSIONS In a demonstration setting, daily tenofovir-disoproxil-fumarate/emtricitabine PrEP leads to reduced CrCl and eGFR; however, these eGFR changes are based on very small changes in serum creatinine and seem to be nonprogressive after the first 12 weeks. Future studies are needed to understand the prognostic significance of these small changes.
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Affiliation(s)
- Eric C Tang
- Department of Medicine, Kaiser Permanente San Francisco Medical Center, San Francisco, CA
- Department of Epidemiology and Biostatistics, University of California, San Francisco, CA
| | - Eric Vittinghoff
- Department of Epidemiology and Biostatistics, University of California, San Francisco, CA
| | - Peter L Anderson
- Department of Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora, CO
| | - Stephanie E Cohen
- San Francisco Departments of Public Health and Medicine, University of California San Francisco, San Francisco, USA
| | - Susanne Doblecki-Lewis
- Division of Infectious Diseases, University of Miami Miller School of Medicine, Miami, FL
| | - Oliver Bacon
- San Francisco Department of Public Health, Division of HIV, Infectious Diseases and Global Medicine, University of California, San Francisco, CA
| | | | - Susan P Buchbinder
- Bridge HIV, San Francisco Department of Public Health
- Departments of Medicine, Epidemiology and Biostatistics, University of California, San Francisco San Francisco, CA
| | - Wairimu Chege
- Division of AIDS, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD
| | - Michael A Kolber
- Department of Medicine, University of Miami Miller School of Medicine, Miami, FL
| | - Richard Elion
- Providence Hospital Department of Infectious Disease, George Washington University School of Medicine, Washington, DC
| | - Michael Shlipak
- Kidney Health Research Collaborative, San Francisco VA Medical Center, University of California, San Francisco, San Francisco, CA
| | - Albert Y Liu
- Bridge HIV, San Francisco Department of Public Health
- Department of Medicine, University of California, San Francisco, CA
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Abstract
The presence of human immunodeficiency virus (HIV)-related kidney disease is an important cause of mortality and morbidity. HIV infection induces renal injury by direct cytotoxicity or immune complex-mediated glomerulonephritis in patients with genetic susceptibility factors. In the last decades, with the development and diffusion of combination antiretroviral therapy, which has prolonged patient survival, there has been a shift in the spectrum of renal diseases in HIV-infected patients, with the decrease of glomerular diseases and increase in the role of nephrotoxicity and co-morbidities. This review provides a contemporary and critical review on the main renal syndromes occurring in HIV-infected patients.
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Affiliation(s)
- Joana Gameiro
- Division of Nephrology and Renal Transplantation, Department of Medicine Centro Hospitalar Lisboa Norte, Lisboa, Portugal
| | - Sofia Jorge
- Division of Nephrology and Renal Transplantation, Department of Medicine Centro Hospitalar Lisboa Norte, Lisboa, Portugal
| | - José A Lopes
- Division of Nephrology and Renal Transplantation, Department of Medicine Centro Hospitalar Lisboa Norte, Lisboa, Portugal
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Boswell MT, Rossouw TM. Approach to acute kidney injury in HIV-infected patients in South Africa. South Afr J HIV Med 2017; 18:714. [PMID: 29568636 PMCID: PMC5843257 DOI: 10.4102/sajhivmed.v18i1.714] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2016] [Accepted: 07/14/2017] [Indexed: 01/25/2023] Open
Abstract
Background HIV-infected patients have an increased risk of renal disease. Current first-line antiretroviral therapy contains tenofovir disoproxil fumarate (TDF), which has nephrotoxic potential, characterised by proximal tubular cell injury. This may result in acute kidney injury, chronic kidney disease or partial or complete Fanconi syndrome. Objectives We reviewed the existing literature on acute kidney injury and TDF-associated nephrotoxicity with the aim of providing an approach to diagnosis and management, which is relevant to a general medical practitioner. Methods We performed a broad literature search of biomedical databases including PubMed and ScienceDirect. Our search terms included, but were not limited to, ‘tenofovir’, ‘nephrotoxicity’, ‘HIV’, ‘acute kidney injury’ and ‘renal tubular acidosis’. Our aim was not to generate a systematic literature review with weighted evidence, but rather to provide a review of best practice from a variety of sources. Where published studies were not available from the above databases, we relied on relevant textbooks and professional guidelines. Results Potential nephrotoxicity is not an impediment to the widespread use of TDF in treating HIV infection, because most patients will tolerate the medication well. However, patients with advanced disease, low body weight, advanced age, pre-existing kidney disease and concomitant use of other nephrotoxic medications are at increased risk of adverse renal events and may develop severe complications if not appropriately managed. These risk factors are unfortunately common in patients initiating antiretroviral therapy in South Africa. Conclusion Prevention of renal damage by means of careful screening and monitoring of high-risk patients is of paramount importance. Increased awareness of this problem and knowledge of how to manage kidney disease should be emphasised for general medical practitioners who work with HIV-infected patients.
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Affiliation(s)
- Michael T Boswell
- Department of Medical Immunology, University of Pretoria, South Africa.,Nuffield Department of Medicine, University of Oxford, United Kingdom
| | - Theresa M Rossouw
- Department of Medical Immunology, University of Pretoria, South Africa
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Koratala A, Ruchi R. Hypokalemia: A potentially life-threatening complication of tenofovir therapy. SAGE Open Med Case Rep 2017; 5:2050313X17741010. [PMID: 29163953 PMCID: PMC5692135 DOI: 10.1177/2050313x17741010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Accepted: 10/12/2017] [Indexed: 11/20/2022] Open
Abstract
Tenofovir is a nucleotide analog reverse transcriptase inhibitor approved for the treatment of HIV and hepatitis B infections. It is widely prescribed and an integral part of the recommended regimens for the treatment of HIV infection in antiretroviral-naive patients. Tenofovir is implicated in renal proximal tubular dysfunction, which can be associated with Fanconi syndrome and hypokalemia. When the hypokalemia is severe, it can lead to life-threatening complications. We describe the case of a 59-year-old woman who suffered a cardiac arrest secondary to severe hypokalemia from tenofovir use.
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Affiliation(s)
- Abhilash Koratala
- Division of Nephrology, Hypertension and Renal Transplantation, University of Florida, Gainesville, FL, USA
| | - Rupam Ruchi
- Division of Nephrology, Hypertension and Renal Transplantation, University of Florida, Gainesville, FL, USA
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121
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Maweni R, Kallampallil J, Leong S, Akunuri S. Concomitant AIDS cholangiopathy and Fanconi syndrome as complications of HIV in a single patient. BMJ Case Rep 2017; 2017:bcr-2017-222333. [PMID: 29167218 DOI: 10.1136/bcr-2017-222333] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
We describe the case of a 50-year-old woman presenting to our acute medicine department with generalised non-specific symptoms on a background of HIV managed on triple therapy (tenofovir, lamivudine and zidovudine). On admission, she was noted to be acidotic with proteinuria, glycosuria, hypophosphataemia and generalised body pain, and was diagnosed with Fanconi's renotubular syndrome secondary to tenofovir. It was also noted that she had elevated liver dysfunction markers, and an MRI of the liver revealed a focal stricture near the ampulla of Vater, resulting in a diagnosis of AIDS cholangiopathy. These two diagnoses are rare complications of HIV, and the presence of both these pathologies in a single patient has never been reported in the literature before, and we therefore believe that this case is the first of its kind.
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Affiliation(s)
- Robert Maweni
- Acute Medical Unit, Croydon University Hospital, London, UK
| | | | - Szewai Leong
- Acute Medicine, National University Hospital, Singapore, Singapore
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Perrier M, Charpentier C, Peytavin G, Lê M, Blondel L, Visseaux B, Joly V, Pinto A, Matheron S, Yazdanpanah Y, Descamps D, Landman R. Switch as maintenance to elvitegravir/cobicistat/emtricitabine/tenofovir disoproxil fumarate: week 48 results in a clinical cohort. J Antimicrob Chemother 2017; 72:1745-1751. [PMID: 28186251 DOI: 10.1093/jac/dkx018] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2016] [Accepted: 01/05/2017] [Indexed: 11/13/2022] Open
Abstract
Objectives To assess, in a clinical cohort, the efficacy of switching current ART in virologically suppressed patients to elvitegravir/cobicistat/emtricitabine/tenofovir disoproxil fumarate as a single-tablet regimen (STR) using the PCR signal of the plasma viral load (pVL) assay and determination of plasma drug concentration ( C 24 ). Patients and methods This was an observational single-centre study enrolling antiretroviral-treated patients with pVL <50 copies/mL initiating elvitegravir-based STR. PCRneg was defined as an undetected PCR signal. Results One hundred and fifty-one patients were enrolled. At STR baseline, the median time since first ART and time of virological suppression were 5 years (IQR 3-9) and 24 months (IQR 9-44), respectively. By week (W) 48, 26 (17%) of the patients had discontinued STR due to adverse events. The proportion of patients maintaining pVL <50 copies/mL on treatment was 98%, 96%, 93% and 97% at W12, W24, W36 and W48, respectively. Five patients (3.3%) experienced a virological failure and emergence of resistance was observed in two of them with the selection of M184V and N155H mutations. At baseline, W12, W24, W36 and W48, 70%, 57%, 72%, 61% and 74% of the patients with pVL <20 copies/mL had a PCRneg, respectively. The median elvitegravir plasma C 24 value was 648 ng/mL (IQR 348-989; n = 237), with 84% of elvitegravir C 24 values >45 ng/mL, the protein-adjusted IC 95 . Conclusions In this clinical cohort of virologically suppressed patients switching to STR, most subjects had adequate elvitegravir C 24 values with a high proportion maintaining virological suppression with no residual viraemia until W48.
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Affiliation(s)
- Marine Perrier
- IAME, UMR 1137, Univ. Paris Diderot, Sorbonne Paris Cité, Paris F-75018, France.,AP-HP, Hôpital Bichat-Claude Bernard, Laboratoire de Virologie, Paris F-75018, France
| | - Charlotte Charpentier
- IAME, UMR 1137, Univ. Paris Diderot, Sorbonne Paris Cité, Paris F-75018, France.,AP-HP, Hôpital Bichat-Claude Bernard, Laboratoire de Virologie, Paris F-75018, France
| | - Gilles Peytavin
- IAME, UMR 1137, Univ. Paris Diderot, Sorbonne Paris Cité, Paris F-75018, France.,IAME, UMR 1137, INSERM, Paris F-75018, France.,AP-HP, Hôpital Bichat-Claude Bernard, Laboratoire de Pharmacologie, Paris F-75018, France
| | - Minh Lê
- IAME, UMR 1137, Univ. Paris Diderot, Sorbonne Paris Cité, Paris F-75018, France.,IAME, UMR 1137, INSERM, Paris F-75018, France.,AP-HP, Hôpital Bichat-Claude Bernard, Laboratoire de Pharmacologie, Paris F-75018, France
| | - Louis Blondel
- AP-HP, Hôpital Bichat-Claude Bernard, Laboratoire de Pharmacologie, Paris F-75018, France
| | - Benoit Visseaux
- IAME, UMR 1137, Univ. Paris Diderot, Sorbonne Paris Cité, Paris F-75018, France.,AP-HP, Hôpital Bichat-Claude Bernard, Laboratoire de Virologie, Paris F-75018, France
| | - Véronique Joly
- IAME, UMR 1137, Univ. Paris Diderot, Sorbonne Paris Cité, Paris F-75018, France.,IAME, UMR 1137, INSERM, Paris F-75018, France.,AP-HP, Hôpital Bichat-Claude Bernard, Service de Maladies Infectieuses et Tropicales, Paris F-75018, France
| | - Adriana Pinto
- AP-HP, Hôpital Bichat-Claude Bernard, Service de Maladies Infectieuses et Tropicales, Paris F-75018, France
| | - Sophie Matheron
- IAME, UMR 1137, Univ. Paris Diderot, Sorbonne Paris Cité, Paris F-75018, France.,IAME, UMR 1137, INSERM, Paris F-75018, France.,AP-HP, Hôpital Bichat-Claude Bernard, Service de Maladies Infectieuses et Tropicales, Paris F-75018, France
| | - Yazdan Yazdanpanah
- IAME, UMR 1137, Univ. Paris Diderot, Sorbonne Paris Cité, Paris F-75018, France.,IAME, UMR 1137, INSERM, Paris F-75018, France.,AP-HP, Hôpital Bichat-Claude Bernard, Service de Maladies Infectieuses et Tropicales, Paris F-75018, France
| | - Diane Descamps
- IAME, UMR 1137, Univ. Paris Diderot, Sorbonne Paris Cité, Paris F-75018, France.,AP-HP, Hôpital Bichat-Claude Bernard, Laboratoire de Virologie, Paris F-75018, France
| | - Roland Landman
- IAME, UMR 1137, Univ. Paris Diderot, Sorbonne Paris Cité, Paris F-75018, France.,IAME, UMR 1137, INSERM, Paris F-75018, France.,AP-HP, Hôpital Bichat-Claude Bernard, Service de Maladies Infectieuses et Tropicales, Paris F-75018, France
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Jotwani V, Atta MG, Estrella MM. Kidney Disease in HIV: Moving beyond HIV-Associated Nephropathy. J Am Soc Nephrol 2017; 28:3142-3154. [PMID: 28784698 PMCID: PMC5661296 DOI: 10.1681/asn.2017040468] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
In developed countries, remarkable advances in antiretroviral therapy have transformed HIV infection into a chronic condition. As a result, HIV-associated nephropathy, the classic HIV-driven kidney lesion among individuals of African descent, has largely disappeared in these regions. However, HIV-positive blacks continue to have much higher rates of ESRD than HIV-positive whites, which could be attributed to the APOL1 renal risk variants. Additionally, HIV-positive individuals face adverse consequences beyond HIV itself, including traditional risk factors for CKD and nephrotoxic effects of antiretroviral therapy. Concerns for nephrotoxicity also extend to HIV-negative individuals using tenofovir disoproxil fumarate-based pre-exposure prophylaxis for the prevention of HIV infection. Therefore, CKD remains an important comorbid condition in the HIV-positive population and an emerging concern among HIV-negative persons receiving pre-exposure prophylaxis. With the improved longevity of HIV-positive individuals, a kidney transplant has become a viable option for many who have progressed to ESRD. Herein, we review the growing knowledge regarding the APOL1 renal risk variants in the context of HIV infection, antiretroviral therapy-related nephrotoxicity, and developments in kidney transplantation among HIV-positive individuals.
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Affiliation(s)
- Vasantha Jotwani
- Kidney Health Research Collaborative, Department of Medicine, University of California, San Francisco, California
- Department of Medicine, San Francisco Veterans Affairs Health Care System, San Francisco, California; and
| | - Mohamed G Atta
- Department of Medicine, Johns Hopkins School of Medicine, Baltimore, Maryland
| | - Michelle M Estrella
- Kidney Health Research Collaborative, Department of Medicine, University of California, San Francisco, California;
- Department of Medicine, San Francisco Veterans Affairs Health Care System, San Francisco, California; and
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Suh YS, Chun DI, Choi SW, Lee HW, Nho JH, Kwon SH, Cho JH, Won SH. Pathologic femoral fracture due to tenofovir-induced Fanconi syndrome in patient with chronic hepatitis B: A case report. Medicine (Baltimore) 2017; 96:e8760. [PMID: 29145330 PMCID: PMC5704875 DOI: 10.1097/md.0000000000008760] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
RATIONALE We report a case of a hepatitis B virus (HBV)-positive patient with preexisting bone disease who developed tenofovir-induced Fanconi syndrome and subsequently sustained pathologic fracture. To our best knowledge, this is the first report in the English literature about pathologic femoral fracture due to tenofovir-induced Fanconi syndrome in patient with chronic hepatitis B (CHB). The present report describes detailed our experience with the diagnosis of pathologic femoral fracture due to tenofovir-induced Fanconi syndrome and treatment. PATIENT CONCERNS A 45-year-old man visited our hospital with pain in the right thigh region and gait disturbance which had started 3 months ago and worsened 1 week before admission. The patient was diagnosed with CHB in 2004. He was on lamivudine medication for 2 years. Medication for the patient was subsequently changed to adefovir in 2009 and tenofovir disoproxil fumarate (TDF) in 2013. He was on TDF since 2013. DIAGNOSIS His hip joint magnetic resonance imaging (MRI) revealed hypointensity lesions and cortical bone destruction in fat-saturated MR image at the iliopsoas muscle attachment site of the lesser trochanter of both femur. On blood test showed 25-OH vitamin D level at 6.42 ng/mL (normal range, >20 ng/mL) and U-deoxypyridinoline level at 7.60 nM/mMcr (normal range, 2.30-5.40 nM mMcr). However, osteocalcin and parathyroid hormone levels were within normal range. Based on these findings, the present case was concluded as tenoforvir-induced Fanconi syndrome. INTERVENTIONS TDF treatment was discontinued. After cooperation with internal medicine department, in order to prevent further fractures of the right lesser trochanter, internal fixation was performed under spinal anesthesia using compression hip nails (APIS, TDM, Korea). OUTCOMES Positive outcome by medication and operation demonstrates that his phosphorus and serum calcium levels were maintained within normal range and pain in the right thigh region was improved from visual analogue pain score (VAS) 7 before surgery to VAS 2 after surgery. LESSONS Physicians need to regularly monitor bone metabolism in patients with take in tenofovir for early diagnosis before its progression to pathologic fractures.
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Affiliation(s)
| | | | | | | | | | - Soon-Hyo Kwon
- Department of Nephrology, Soonchunhyang University Hospital Seoul, Seoul
| | - Jae-ho Cho
- Department of Orthopaedic Surgery, Chuncheon Sacred Heart Hospital, Hallym University, Chuncheon-si, Gangwon-do, Korea
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Hsu YC, Wei MT, Nguyen MH. Tenofovir alafenamide as compared to tenofovir disoproxil fumarate in the management of chronic hepatitis B with recent trends in patient demographics. Expert Rev Gastroenterol Hepatol 2017; 11:999-1008. [PMID: 28965428 DOI: 10.1080/17474124.2017.1386554] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Tenofovir alafenamide (TAF) has recently been approved for chronic hepatitis B (CHB). It is more stable than tenofovir disoproxil fumarate (TDF) in the plasma and can provide similar efficacy with lower circulating concentration in patients with hepatitis B virus (HBV) infection. Areas covered: This synopsis will review the current anti-HBV standard practice and the changing epidemiology of CHB, specifically the controversies surrounding the renal and bone safety associated with TDF use in the context of an aging CHB population. We will review data from phase 3 registration trials, which demonstrated TAF was not inferior to TDF in antiviral efficacy for both HBeAg-positive and HBeAg-negative patients, while associated with less reduction in the estimated glomerular filtration rate and bone mineral density. Expert commentary: Current data supports the use of TAF as one of the first-line antiviral agents for general CHB patients without hepatic decompensation. However, more real-world data with long-term observation are needed to better define the role of TAF among other oral regimens. Additional studies are also needed to evaluate the efficacy and safety of TAF in special populations such as those with impaired hepatic function, existing impaired renal and/or bone function, and in pregnant women.
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Affiliation(s)
- Yao-Chun Hsu
- a School of Medicine and Big Data Research Centre, College of Medicine, Fu-Jen Catholic University , New Taipei , Taiwan.,b Division of Gastroenterology and Hepatology , Fu-Jen Catholic University Hospital , New Taipei , Taiwan.,c Division of Gastroenterology and Hepatology , E-Da Hospital , Kaohsiung , Taiwan
| | - Mike T Wei
- d Department of Medicine , Stanford University Medical Center , Palo Alto , CA , USA
| | - Mindie H Nguyen
- e Division of Gastroenterology and Hepatology , Stanford University Medical Center , Palo Alto , CA , USA
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Kooij KW, Vogt L, Wit FWNM, van der Valk M, van Zoest RA, Goorhuis A, Prins M, Post FA, Reiss P. Higher Prevalence and Faster Progression of Chronic Kidney Disease in Human Immunodeficiency Virus-Infected Middle-Aged Individuals Compared With Human Immunodeficiency Virus-Uninfected Controls. J Infect Dis 2017; 216:622-631. [PMID: 28934420 DOI: 10.1093/infdis/jix202] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2017] [Accepted: 05/07/2017] [Indexed: 01/22/2023] Open
Abstract
Background Human immunodeficiency virus (HIV)-infected individuals are at increased risk of chronic kidney disease (CKD). Human immunodeficiency virus infection, traditional CKD risk factors, and combination antiretroviral therapy (cART) may all contribute. Methods We compared prevalence of renal impairment (estimated glomerular filtration rate [eGFR] <60 mL/min/1.73m2), albuminuria (albumin/creatinine ratio ≥3 mg/mmol), and proximal renal tubular dysfunction (retinol-binding protein/creatinine ratio >2.93μg/mmol and/or fractional phosphate excretion >20% with plasma phosphate <0.8 mmol/L) in 596 HIV-infected and 544 HIV-uninfected AGEhIV Cohort Study participants. We also assessed whether being HIV-infected on cART, with follow-up censored when cART regimen was modified, was associated with greater eGFR decline or worsening albuminuria (increase ≥10%/year with change in albuminuria category). Results Human immunodeficiency virus infection was independently associated with renal impairment (adjusted odds ratio [aOR] = 2.1; 95% confidence interval [CI] = 1.0-4.4), albuminuria (aOR = 5.8; 95% CI = 3.7-9.0), and proximal renal tubular dysfunction (aOR = 7.0; 95% CI = 4.9-10.2]). Among 377 HIV-infected and 479 HIV-uninfected individuals (median follow-up = 3.9/4.1 years, respectively) included in longitudinal analyses, being HIV-infected and remaining on unmodified cART was independently associated with greater eGFR decline (-0.56; 95% CI = -0.87 to -0.24 mL/min/1.73m2/year) and worsening albuminuria (aOR = 2.3; 95% CI = 1.3-4.0). Conclusions In these middle-aged individuals, HIV infection was independently associated with renal impairment, albuminuria, and proximal renal tubular dysfunction. Human immunodeficiency virus-infected individuals on cART (predominantly containing tenofovir disoproxil fumarate) were also more likely to experience eGFR decline and worsening albuminuria compared with HIV-uninfected individuals.
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Affiliation(s)
- Katherine W Kooij
- Department of Global Health, Academic Medical Center, and Amsterdam Institute for Global Health and Development
| | - Liffert Vogt
- Department of Nephrology, Academic Medical Center
| | - Ferdinand W N M Wit
- Department of Global Health, Academic Medical Center, and Amsterdam Institute for Global Health and Development.,Division of Infectious Diseases and Center for Infection and Immunity Amsterdam, Academic Medical Center.,HIV Monitoring Foundation
| | - Marc van der Valk
- Division of Infectious Diseases and Center for Infection and Immunity Amsterdam, Academic Medical Center
| | - Rosan A van Zoest
- Department of Global Health, Academic Medical Center, and Amsterdam Institute for Global Health and Development
| | - Abraham Goorhuis
- Division of Infectious Diseases and Center for Infection and Immunity Amsterdam, Academic Medical Center
| | - Maria Prins
- Division of Infectious Diseases and Center for Infection and Immunity Amsterdam, Academic Medical Center.,Public Health Service Amsterdam, Infectious Diseases Research, Amsterdam, the Netherlands
| | - Frank A Post
- King's College Hospital NHS Foundation Trust, London, United Kingdom
| | - Peter Reiss
- Department of Global Health, Academic Medical Center, and Amsterdam Institute for Global Health and Development.,Division of Infectious Diseases and Center for Infection and Immunity Amsterdam, Academic Medical Center.,HIV Monitoring Foundation
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Chazot R, Botelho-Nevers E, Frésard A, Maillard N, Mariat C, Lucht F, Gagneux-Brunon A. Diagnostic challenges of kidney diseases in HIV-infected patients. Expert Rev Anti Infect Ther 2017; 15:903-915. [PMID: 28898114 DOI: 10.1080/14787210.2017.1379395] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
INTRODUCTION Chronic kidney disease (CKD) is a prevalent comorbidity in persons living with HIV infection (PLWH) associated with an increase in cardiovascular morbidity and all-cause mortality. Furthermore, early diagnosis of CKD is difficult in PLWH. Areas covered: We reviewed the main diagnostic tools for CKD in PLWH, and discussed their strengths and limits. We performed a literature search on PubMed to identify reviews and clinical trials dealing with attractive kidney biomarkers of CKD in PLWH, with the following key words: 'HIV AND kidney', 'HIV AND Kidney biomarkers', 'CKD AND Kidney biomarkers'. Expert commentary: Currently, CKD diagnosis is based on the estimation of Glomerular Filtration Rate (GFR), and measurement of proteinuria by urine protein/creatinine ratio (uPCR). These parameters are independent and complementary predictors of outcomes. GFR estimates are lacking in accuracy in PLWH. The best GFR estimate is CKD-EPI study equation. Moreover, low-grade proteinuria is associated with an increased risk of kidney disease progression in PLWH, and guidelines derived from the general population may lack sensitivity. Different biomarkers of kidney diseases like N-acetyl beta glucosaminidase (NAG), Kidney Injury Molecule-1 (KIM-1), and Alpha-1-microglobulin may predict kidney disease progression and mortality in PLWH. Others may help clinicians detect antiretroviral-induced tubulopathy, or predict cardiovascular events. More studies are needed to validate the routine use of these types of biomarkers.
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Affiliation(s)
- Robin Chazot
- a Department of Nephrology, Dialysis, Transplantation and Hypertension , University Hospital of Saint-Étienne , Saint-Étienne , France
| | - Elisabeth Botelho-Nevers
- b Department of Infectious and Tropical Diseases , University Hospital of Saint-Étienne , Saint-Étienne , France.,c GIMAP - Groupe sur l'Immunité des Muqueuses et Agents Pathogènes, EA 3064 , Université Jean Monnet, Université de Lyon , Saint-Étienne , France
| | - Anne Frésard
- b Department of Infectious and Tropical Diseases , University Hospital of Saint-Étienne , Saint-Étienne , France.,c GIMAP - Groupe sur l'Immunité des Muqueuses et Agents Pathogènes, EA 3064 , Université Jean Monnet, Université de Lyon , Saint-Étienne , France
| | - Nicolas Maillard
- a Department of Nephrology, Dialysis, Transplantation and Hypertension , University Hospital of Saint-Étienne , Saint-Étienne , France.,c GIMAP - Groupe sur l'Immunité des Muqueuses et Agents Pathogènes, EA 3064 , Université Jean Monnet, Université de Lyon , Saint-Étienne , France
| | - Christophe Mariat
- a Department of Nephrology, Dialysis, Transplantation and Hypertension , University Hospital of Saint-Étienne , Saint-Étienne , France.,c GIMAP - Groupe sur l'Immunité des Muqueuses et Agents Pathogènes, EA 3064 , Université Jean Monnet, Université de Lyon , Saint-Étienne , France
| | - Frédéric Lucht
- b Department of Infectious and Tropical Diseases , University Hospital of Saint-Étienne , Saint-Étienne , France.,c GIMAP - Groupe sur l'Immunité des Muqueuses et Agents Pathogènes, EA 3064 , Université Jean Monnet, Université de Lyon , Saint-Étienne , France
| | - Amandine Gagneux-Brunon
- b Department of Infectious and Tropical Diseases , University Hospital of Saint-Étienne , Saint-Étienne , France.,c GIMAP - Groupe sur l'Immunité des Muqueuses et Agents Pathogènes, EA 3064 , Université Jean Monnet, Université de Lyon , Saint-Étienne , France
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Chary A, Nguyen NN, Maiton K, Holodniy M. A review of drug-drug interactions in older HIV-infected patients. Expert Rev Clin Pharmacol 2017; 10:1329-1352. [PMID: 28922979 DOI: 10.1080/17512433.2017.1377610] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
INTRODUCTION The number of older HIV-infected people is growing due to increasing life expectancies resulting from the use of antiretroviral therapy (ART). Both HIV and aging increase the risk of other comorbidities, such as cardiovascular disease, osteoporosis, and some malignancies, leading to greater challenges in managing HIV with other conditions. This results in complex medication regimens with the potential for significant drug-drug interactions and increased morbidity and mortality. Area covered: We review the metabolic pathways of ART and other medications used to treat medical co-morbidities, highlight potential areas of concern for drug-drug interactions, and where feasible, suggest alternative approaches for treating these conditions as suggested from national guidelines or articles published in the English language. Expert commentary: There is limited evidence-based data on ART drug interactions, pharmacokinetics and pharmacodynamics in the older HIV-infected population. Choosing and maintaining effective ART regimens for older adults requires consideration of side effect profile, individual comorbidities, interactions with concurrent prescriptions and non-prescription medications and supplements, dietary patterns with respect to dosing, pill burden and ease of dosing, cost and affordability, patient preferences, social situation, and ART resistance history. Practitioners must remain vigilant for potential drug interactions and intervene when there is a potential for harm.
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Affiliation(s)
- Aarthi Chary
- a Department of Medicine , Veterans Affairs Palo Alto Health Care System , Palo Alto , CA , USA.,b Division of Infectious Diseases and Geographic Medicine , Stanford University School of Medicine , Stanford , CA , USA
| | - Nancy N Nguyen
- c Department of Pharmacy , Veterans Affairs Palo Alto Health Care System , Palo Alto , CA , USA.,d Department of Pharmacy Practice, Thomas J. Long School of Pharmacy & Health Sciences , University of the Pacific , Stockton , CA , USA
| | - Kimberly Maiton
- d Department of Pharmacy Practice, Thomas J. Long School of Pharmacy & Health Sciences , University of the Pacific , Stockton , CA , USA
| | - Mark Holodniy
- a Department of Medicine , Veterans Affairs Palo Alto Health Care System , Palo Alto , CA , USA.,b Division of Infectious Diseases and Geographic Medicine , Stanford University School of Medicine , Stanford , CA , USA.,e Office of Public Health Surveillance & Research , Veterans Affairs Palo Alto Health Care System , Palo Alto , CA , USA
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Milazzo L, Gervasoni C, Falvella FS, Cattaneo D, Mazzali C, Ronzi P, Binda F, Cheli S, Sollima S, Antinori S. Renal function in HIV/HBV co-infected and HBV mono-infected patients on a long-term treatment with tenofovir in real life setting. Clin Exp Pharmacol Physiol 2017; 44:191-196. [PMID: 27809359 DOI: 10.1111/1440-1681.12691] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2016] [Revised: 10/07/2016] [Accepted: 10/29/2016] [Indexed: 12/11/2022]
Abstract
The human immunodeficiency virus (HIV)/hepatitis B virus (HBV) co-infection is likely to be associated with an increased risk of kidney disease, due to the additional factors that may affect renal function in the HIV population. We aimed to evaluate renal toxicity in HIV/HBV and HBV mono-infected patients on long-term therapy with tenofovir (TDF) and to explore the association of polymorphisms in ATP-binding cassette (ABCC)2, ABCC4, ABCC10 with the development of renal dysfunction. From September 2006 to November 2014, 44 HIV/HBV co-infected and 34 HBV mono-infected patients were commenced on TDF. Data of renal safety were retrospectively collected and analyzed. ABCC2, ABCC4 and ABCC10 genotypes were identified by real-time PCR. Over 60 months of observation, there was a significant increase in mean creatinine levels from baseline (P<.01) that was not significantly different between the two study groups. Moreover, a significant decline in estimated glomerular filtration rate (eGFR) was observed from baseline (P<.01), and it was significantly greater in HBV mono-infected than co-infected patients (P=.03). The distribution of ABCC2, ABCC4 and ABCC10 genotypes among a subgroup of 34 patients did not show significant association with eGFR decline <90 mL/min per 1.73 m2 . Although our findings showed a statistically significant decrease in eGFR with long-term use of TDF, its clinical impact seems to be modest. The role of genetic factors to identify patients at greater risk for developing tenofovir-induced renal toxicity needs to be further investigated.
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Affiliation(s)
- Laura Milazzo
- Department of Biomedical and Clinical Sciences L. Sacco, University of Milan, Milan, Italy
| | - Cristina Gervasoni
- Department of Biomedical and Clinical Sciences L. Sacco, University of Milan, Milan, Italy
| | | | - Dario Cattaneo
- Unit of Clinical Pharmacology, L. Sacco University Hospital, Milan, Italy
| | - Cristina Mazzali
- Department of Management, Economics and Industrial Engineering, Milan Politecnico, Milan, Italy
| | - Paola Ronzi
- Department of Biomedical and Clinical Sciences L. Sacco, University of Milan, Milan, Italy
| | - Francesca Binda
- Department of Biomedical and Clinical Sciences L. Sacco, University of Milan, Milan, Italy
| | - Stefania Cheli
- Unit of Clinical Pharmacology, L. Sacco University Hospital, Milan, Italy
| | - Salvatore Sollima
- Department of Biomedical and Clinical Sciences L. Sacco, University of Milan, Milan, Italy
| | - Spinello Antinori
- Department of Biomedical and Clinical Sciences L. Sacco, University of Milan, Milan, Italy
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130
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Murphy RA, Valentovic MA. Factors Contributing to the Antiviral Effectiveness of Tenofovir. J Pharmacol Exp Ther 2017; 363:156-163. [DOI: 10.1124/jpet.117.243139] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Accepted: 08/25/2017] [Indexed: 11/22/2022] Open
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Changes in Kidney Function and in the Rate of Tubular Dysfunction After Tenofovir Withdrawal or Continuation in HIV-Infected Patients. J Acquir Immune Defic Syndr 2017; 72:416-22. [PMID: 26962850 DOI: 10.1097/qai.0000000000000986] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
INTRODUCTION Longitudinal data on the changes in kidney function and tubular abnormalities in case of tenofovir disoproxil fumarate (TDF) withdrawal or continuation are scarce. METHODS Prospective study of 228 patients receiving TDF, with 3 sequential determinations of serum creatinine, estimated glomerular filtration rate (eGFR), phosphatemia, and different urinary parameters (protein, albumin, phosphaturia, uricosuria, and glycosuria). Changes were analyzed in patients who interrupted TDF as compared to those who continued the same regimen. Proximal renal tubular dysfunction (PRTD) was defined as ≥2 tubular abnormalities. RESULTS After a median follow-up of 59.5 months, 78 patients (34%) had PRTD, mainly proteinuria (40%) and phosphaturia (61%), and time on TDF explains the severity of tubular alterations and eGFR slopes. In 35 switching patients, there was a rapid and significant eGFR improvement (median +4.1 ml/min per 1.73 m; P = 0.02), leading to a 39%-83% reduction in the prevalence of tubular abnormalities and of PRTD in less than 1 year (66%-39%). In comparison, 193 patients continuing the same regimen for 21.2 months had a small but significant and progressive eGFR decrease (-2.9 mL·min·1.73 m; P < 0.01), and a progressive rise in the prevalence of phosphaturia, uricosuria, and glycosuria (+9%-56%). In linear mixed-effect model, subsequent eGFR impairment was associated with proteinuria and time on TDF, and eGFR improvement with TDF discontinuation. CONCLUSIONS Our data support the role of use and time on TDF in eGFR decline and tubular dysfunction. In contrast, TDF withdrawal is followed by a rapid and significant, although partial, recovery of eGFR and tubular abnormalities.
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Abstract
OBJECTIVE In-vivo studies suggest that mitochondria is involved in tenofovir (TFV)-induced renal toxicity, but the underlying mechanisms are still unclear. The aim of the present study was to assess the effects of TFV and its prodrug, TFV disoproxil fumarate, on mitochondrial function and cell survival/viability in a renal proximal tubular cell line. DESIGN AND METHODS We evaluated parameters of cellular proliferation/survival (cell count, cell cycle, viability) and mitochondrial function (oxygen consumption, mitochondrial membrane potential, reactive oxygen species production) in NRK-52E cells. Intracellular TFV was measured by HPLC and expression of antioxidant genes was analysed by real-time PCR. RESULTS Similar intracellular levels of TFV were reached with lower concentrations of the prodrug than of the drug, and correlated directly with a decrease in cell number. Both compounds inhibited proliferation and compromised mitochondrial function by decreasing mitochondrial membrane potential and increasing oxygen consumption and mitochondrial superoxide production. Altered oxidative status was confirmed by the overexpression of antioxidant genes. CONCLUSIONS Intracellular accumulation of TFV induces mitochondrial toxicity in an in-vitro renal model and alters cell proliferation and viability. Our findings call for caution regarding the use of this nucleotide analogue reverse transcriptase inhibitor in patients with other risk factors that compromise mitochondrial function in the kidney.
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Venter WDF, Majam M, Akpomiemie G, Arulappan N, Moorhouse M, Mashabane N, Chersich MF. Is laboratory screening prior to antiretroviral treatment useful in Johannesburg, South Africa? Baseline findings of a clinical trial. BMC Public Health 2017; 17:445. [PMID: 28832288 PMCID: PMC5498858 DOI: 10.1186/s12889-017-4353-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Screening for renal, hepatic and haematological disorders complicates the initiation of current first-line antiretroviral therapy (ART). Each additional test done adds substantial costs, both through direct laboratory expenses, but also by increasing the burden on health workers and patients. Evaluating the prevalence of clinically relevant abnormalities in different population groups could guide decisions about what tests to recommend in national guidelines, or in local adaptations of these. METHODS As part of enrolment procedures in a clinical trial, 771 HIV-positive adults, predominantly from inner-city primary health care clinics, underwent laboratory screening prior to ART. Participants had to be eligible for ART, based on the then CD4 eligibility threshold of 350 cells/μL, antiretroviral naïve and have no symptoms of peripheral neuropathy. RESULTS Participants were mostly female (57%) and a mean 34 years old. Creatinine clearance rates were almost all above 50 mL/min (99%), although 5% had microalbuminuria. Hepatitis B antigenaemia was common (8% of participants), of whom 40% had a raised AST/ALT, though only 2 had transaminase levels above 200 IU/L. Only 2% of participants had severe anaemia (haemoglobin <8 g/dl) and 1% neutropaenia (neutrophils <0.75 × 10^9/L). Costs per case detected of hepatitis B infection was USD135, but more than USD800 for a raised creatinine. CONCLUSIONS Hepatitis B continues to be a common co-infection in HIV-infected adults, and adds complexity to management of ART switches involving tenofovir. Routine renal and haematological screening prior to ART detected few abnormalities. The use of these screening tests should be assessed among patients with higher CD4 counts, who may even have fewer abnormalities. Formal evaluation of cost-effectiveness of laboratory screening prior to ART is warranted.
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Affiliation(s)
- Willem D. F. Venter
- Wits Reproductive Health and HIV Institute (WRHI), Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Mohammed Majam
- Wits Reproductive Health and HIV Institute (WRHI), Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Godspower Akpomiemie
- Wits Reproductive Health and HIV Institute (WRHI), Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Natasha Arulappan
- Wits Reproductive Health and HIV Institute (WRHI), Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Michelle Moorhouse
- Wits Reproductive Health and HIV Institute (WRHI), Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Nonkululeko Mashabane
- Wits Reproductive Health and HIV Institute (WRHI), Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Matthew F. Chersich
- Wits Reproductive Health and HIV Institute (WRHI), Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
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Magande PN, Chirundu D, Gombe NT, Mungati M, Tshimanga M. Determinants of uncontrolled hypertension among clients on anti-retroviral therapy in Kadoma City, Zimbabwe, 2016. Clin Hypertens 2017; 23:14. [PMID: 28690867 PMCID: PMC5496338 DOI: 10.1186/s40885-017-0070-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2016] [Accepted: 03/28/2017] [Indexed: 12/12/2022] Open
Abstract
Background Clients on anti-retroviral therapy (ART) are living longer and have risk of hypertension. Side effects of medicines and aging increase this risk. Hypertension prevalence among clients on ART in Kadoma City was estimated to be 30% in 2015. Of these, 61% had uncontrolled hypertension. This was high compared to 46% of hypertensives in the general population who had uncontrolled hypertension. We determined factors associated with uncontrolled hypertension among clients on ART. Methods A 1.1 unmatched case control study was conducted. Interviews, anthropometric measurements and record reviews were to collect data on demography and medical history. Epi Info 7 was used for univariate, bivariate analysis and logistic regression. Results One hundred and fifty-two cases and 152 controls were recruited into the study. Adding salt to dishes regularly aOR = 5.69 (3.19–10.16), body mass index (BMI) above 25 kg/m2 aOR = 2.81 (1.60–4.91) and history of elevated blood pressure in previous year aOR = 2.34 (1.33–4.13) were independent risk factors. Independent protective factors were duration more than 2 years since HIV diagnosis aOR = 0.58 (0.35–0.95), duration less than 5 years since hypertension diagnosis aOR = 0.50 (0.30–0.83) and walking or cycling as a means of transport aOR = 0.27 (0.16–0.48). Conclusion Adding salt to dishes regularly, BMI above 25 kg/m2, history of elevated blood pressure in the previous year, duration more than 2 years since HIV diagnosis, duration less than 5 years since hypertension diagnosis and walking or cycling as a means of transport were independently associated with uncontrolled hypertension. Health education on lifestyle changes like walking and cycling as transport and dietary modification such as salt intake reduction were recommended.
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Affiliation(s)
| | | | | | - More Mungati
- Department of Community Medicine, University of Zimbabwe, Harare, Zimbabwe
| | - Mufuta Tshimanga
- Department of Community Medicine, University of Zimbabwe, Harare, Zimbabwe
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Wright E, Grulich A, Roy K, Boyd M, Cornelisse V, Russell D, O'Donnell D, Whittaker B, Crooks L, Zablotska I. Australasian Society for HIV, Viral Hepatitis and Sexual Health Medicine HIV pre-exposure prophylaxis: clinical guidelines. J Virus Erad 2017. [DOI: 10.1016/s2055-6640(20)30338-1] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
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136
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Lee KH, Lee JU, Ku NS, Jeong SJ, Han SH, Choi JY, Song YG, Kim JM. Change in Renal Function among HIV-Infected Koreans Receiving Tenofovir Disoproxil Fumarate-Backbone Antiretroviral Therapy: A 3-Year Follow-Up Study. Yonsei Med J 2017; 58:770-777. [PMID: 28540990 PMCID: PMC5447108 DOI: 10.3349/ymj.2017.58.4.770] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2016] [Revised: 02/01/2017] [Accepted: 02/15/2017] [Indexed: 12/21/2022] Open
Abstract
PURPOSE Tenofovir disoproxil fumarate (TDF) is commonly prescribed as a fixed-dose, co-formulated antiretroviral drug for HIV-1 infection. The major concern of long-term TDF use is renal dysfunction. However, little is known about the long-term patterns of changes in renal function in HIV-infected Koreans receiving TDF. MATERIALS AND METHODS We prospectively followed 50 HIV-infected Koreans, performing laboratory tests every 3 months during the first year and every 6 months for the next 2 years. Urine N-acetyl-β-D-glucosaminidase (NAG) and plasma cystatin-C were measured using samples collected in the first year. Data on renal function were retrospectively collected on HIV-infected patients receiving first-line TDF (n=40) and in antiretroviral therapy (ART)-naïve patients (n=24) for 3 years. Renal function was evaluated as estimated glomerular filtration rate (eGFR) from serum creatinine [Modification of Diet in Renal Disease (MDRD)] and cystatin-C. RESULTS The eGFR (cystatin-C) showed significant changes from 0 to 48 wks (p=0.002), with the lowest levels at 24 wks (84.3±18.8 mL/min vs. 90.3±22.5 mL/min, p=0.021 by post hoc test). Urine NAG levels did not differ at 0, 12, 24, and 48 wks, although eGFR (MDRD) significantly decreased from 0 (98.7±18.9 mL/min/1.73 m²) to 144 wks (89.0±14.7 mL/min/1.73 m²) (p=0.010). The first-line TDF group had significantly lower eGFR (MDRD) than the ART-naïve group at 144 wks (89.7 mL/min/1.73 m² vs. 98.4 mL/min/1.73 m², p=0.036). Thirteen (26%) participants experienced a decrease in renal impairment of 10 mL/min/1.73 m² in eGFR (MDRD) at 144 wks. CONCLUSION These data suggest that clinically meaningful renal injury can develop in HIV-infected Koreans receiving long-term TDF.
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Affiliation(s)
- Kyoung Hwa Lee
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Ji Un Lee
- Division of Infectious Diseases, Department of Internal Medicine, Hongik Hospital, Seoul, Korea
| | - Nam Su Ku
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Su Jin Jeong
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Sang Hoon Han
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea.
| | - Jun Yong Choi
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Young Goo Song
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - June Myung Kim
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
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137
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Brief Report: Randomized, Double-Blind Comparison of Tenofovir Alafenamide (TAF) vs Tenofovir Disoproxil Fumarate (TDF), Each Coformulated With Elvitegravir, Cobicistat, and Emtricitabine (E/C/F) for Initial HIV-1 Treatment: Week 144 Results. J Acquir Immune Defic Syndr 2017; 75:211-218. [PMID: 28282300 DOI: 10.1097/qai.0000000000001350] [Citation(s) in RCA: 77] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
In 2 double-blind phase 3 trials, 1733 antiretroviral-naive adults were randomized to tenofovir alafenamide (TAF) or tenofovir disoproxil fumarate (TDF), each coformulated with elvitegravir/cobicistat/emtricitabine (E/C/F). At 144 weeks, TAF was superior to TDF in virologic efficacy, with 84.2% vs 80.0% having HIV-1 RNA <50 copies/mL (difference 4.2%; 95% confidence interval: 0.6% to 7.8%). TAF had less impact than TDF on bone mineral density and renal biomarkers. No participants on TAF had renal-related discontinuations vs 12 on TDF (P < 0.001), with no cases of proximal tubulopathy for TAF vs 4 for TDF. There were greater increases in lipids with TAF vs TDF, with no difference in the total cholesterol to high-density lipoprotein ratio. For initial HIV therapy, E/C/F/TAF is superior to E/C/F/TDF in efficacy and bone and renal safety.
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138
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Brief Report: Long-Term (96-Week) Efficacy and Safety After Switching From Tenofovir Disoproxil Fumarate to Tenofovir Alafenamide in HIV-Infected, Virologically Suppressed Adults. J Acquir Immune Defic Syndr 2017; 75:226-231. [PMID: 28272164 PMCID: PMC5427981 DOI: 10.1097/qai.0000000000001344] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Supplemental Digital Content is Available in the Text. In a double-blind, phase 3 trial, 663 HIV-infected, virologically suppressed adults were randomized to switch to tenofovir alafenamide (TAF; n = 333) vs. remain on tenofovir disoproxil fumarate (TDF; n = 330), each coformulated with emtricitabine (FTC), while continuing their third agent (boosted protease inhibitor or unboosted third agent). At week 96, 88.6% on FTC/TAF and 89.1% on FTC/TDF had HIV-1 RNA <50 copies per milliliter [adjusted difference −0.5% (95% confidence interval: −5.3 to 4.4%)]. Proteinuria, albuminuria, proximal renal tubular function, and bone mineral density improved after switching to TAF- from TDF-containing regimens. These longer-term data support FTC/TAF as a safe, well-tolerated, and durable nucleotide reverse transcriptase inhibitor backbone.
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139
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Brief Report: Efficacy and Safety of Switching to a Single-Tablet Regimen of Elvitegravir/Cobicistat/Emtricitabine/Tenofovir Alafenamide in HIV-1/Hepatitis B-Coinfected Adults. J Acquir Immune Defic Syndr 2017; 73:294-298. [PMID: 27171740 PMCID: PMC5172523 DOI: 10.1097/qai.0000000000001069] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Coformulated elvitegravir, cobicistat, emtricitabine, and tenofovir alafenamide (E/C/F/TAF) has high efficacy and improved renal and bone safety in multiple phase 3 trials; TAF single agent is being studied in 2 phase 3 trials in patients with chronic hepatitis B. We report the results of an open-label, noncomparative switch study evaluating the efficacy and safety of E/C/F/TAF in HIV/hepatitis B virus (HBV)-coinfected adults. At 48 weeks, 91.7% of the 72 participants maintained or achieved virologic suppression (HIV-1 RNA <50 copies/mL; HBV DNA <29 IU/mL). Seroconversion occurred in 2.9% of hepatitis B surface antigen-positive participants and in 3.3% of HBV e antigen-positive participants; 40% of those with abnormal alanine aminotransferase normalized. E/C/F/TAF was associated with improved renal function and reduced bone turnover. These data support the use of E/C/F/TAF in treating HIV/HBV coinfection.
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140
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Brief Report: Switching to Tenofovir Alafenamide, Coformulated With Elvitegravir, Cobicistat, and Emtricitabine, in HIV-Infected Adults With Renal Impairment: 96-Week Results From a Single-Arm, Multicenter, Open-Label Phase 3 Study. J Acquir Immune Defic Syndr 2017; 74:180-184. [PMID: 27673443 PMCID: PMC5228610 DOI: 10.1097/qai.0000000000001186] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Tenofovir disoproxil fumarate is associated with renal and bone toxicity. In a single-arm, open-label study of 242 virologically suppressed, HIV-infected participants with creatinine clearance 30–69 mL/min who switched to elvitegravir/cobicistat/emtricitabine/tenofovir alafenamide, participants had stable creatinine clearance, significant and durable improvements in proteinuria, albuminuria, and tubular proteinuria (P < 0.001), and significant increases in hip and spine bone mineral density through 96 weeks (P < 0.001). Eighty-eight percent maintained HIV-1 RNA <50 c/mL at week 96. These longer-term results support the use of elvitegravir/cobicistat/emtricitabine/tenofovir alafenamide in HIV-infected individuals with mild-moderately impaired renal function.
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141
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Salvaggio SE, Giacomelli A, Falvella FS, Oreni ML, Meraviglia P, Atzori C, Clementi EGI, Galli M, Rusconi S. Clinical and genetic factors associated with kidney tubular dysfunction in a real-life single centre cohort of HIV-positive patients. BMC Infect Dis 2017; 17:396. [PMID: 28583112 PMCID: PMC5460416 DOI: 10.1186/s12879-017-2497-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2017] [Accepted: 05/28/2017] [Indexed: 01/11/2023] Open
Abstract
Background Tenofovir (TDF) is one of the most widely used antiretroviral drug. Despite the high degree of tolerability a small percentage of patients experienced alteration in tubular function during TDF use. Intracellular TDF disposition is regulated by ATP-binding cassette (ABC) drug efflux transporters and, a reduced transport activity may be implicated in accumulation of TDF into the cells. The aim of our study was to assess the major determinants of TDF associated tubular dysfunction (KTD) in a real-life setting including the usefulness of single-nucleotide polymorphisms (SNPs) mapping into ABCC2, ABCC4 and ABCC10 genes. Methods We retrospectively analyzed all HIV positive patients who were followed at the Infectious Diseases Unit, DIBIC Luigi Sacco, University of Milan from April 2013 to June 2016. All patients treated with TDF who underwent a genotypization for the functional variants mapping in ABCC2 rs717620 (−24 C > T), ABCC4 rs1751034 (3463 A > G) and ABCC10 rs2125739 (T > C) were evaluated. KTD was defined as the presence of urine phosphate wasting and/or proteinuria at 24 h urine analysis. Results One hundred fifty-eight patients were genotyped, of which 42 (26.6%) experienced signs of KTD. No statistical significant differences were observed among patients with or without KTD regarding age, gender, ethnicity and comorbidities (hypertension and diabetes). The percentage of patients with KTD was higher among those with “GG” genotype at rs1751034 of ABCC4 compared to patients without KTD [6 (14.3%) vs 4 (3.5%), p = 0.01]. No statistical significant differences were observed regarding the distribution of ABCC2 and ABCC10 SNPs. Carriers of “G” allele in homozygous status at rs1751034 of ABCC4 showed a significant association with KTD (Odds Ratio 4.67, 95% CI 1.25–17.46, p = 0.02) in bivariate analysis, but this association was lost in multivariable analysis. A significant association between bone diseases and KTD was observed (Odds Ratio 3.178, 95%CI 1.529–6.603, p = 0.002). Conclusions According to our results ABCC4 rs1751034 could be a genetic determinant of KTD; however validation studies are needed for therapy personalization. Noteworthy, a strong association between bone disease and KTD was also observed.
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Affiliation(s)
- S E Salvaggio
- Infectious Diseases Unit, DIBIC Luigi Sacco - University of Milan, Milan, Italy
| | - A Giacomelli
- Infectious Diseases Unit, DIBIC Luigi Sacco - University of Milan, Milan, Italy.
| | - F S Falvella
- ASST Fatebenefratelli-Sacco, Clinical Pharmacology Department, Milan, Italy
| | - M L Oreni
- Infectious Diseases Unit, DIBIC Luigi Sacco - University of Milan, Milan, Italy
| | - P Meraviglia
- ASST Fatebenefratelli-Sacco, First Division of Infectious Diseases, Milan, Italy
| | - C Atzori
- ASST Fatebenefratelli-Sacco, First Division of Infectious Diseases, Milan, Italy
| | - E G I Clementi
- Clinical Pharmacology Unit, Consiglio Nazionale delle Ricerche Institute of Neuroscience, DIBIC Luigi Sacco - University of Milan, Milan, Italy.,E. Medea Scientific Institute, Bosisio Parini, Italy
| | - M Galli
- Infectious Diseases Unit, DIBIC Luigi Sacco - University of Milan, Milan, Italy
| | - S Rusconi
- Infectious Diseases Unit, DIBIC Luigi Sacco - University of Milan, Milan, Italy.
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142
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Brief Report: Cumulative Tenofovir Disoproxil Fumarate Exposure is Associated With Biomarkers of Tubular Injury and Fibrosis in HIV-Infected Men. J Acquir Immune Defic Syndr 2017; 73:177-81. [PMID: 27088295 DOI: 10.1097/qai.0000000000001027] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Tenofovir disoproxil fumarate (TDF) can cause kidney damage, but current clinical tests are insensitive for detecting toxicity. Among 884 HIV-infected men enrolled in the Multicenter AIDS Cohort Study, we measured urine biomarkers specific for tubular damage (interleukin-18, kidney injury molecule-1, procollagen type III N-terminal propeptide) and albuminuria. In adjusted analyses, each year of TDF exposure was independently associated with 3.3% higher interleukin-18 (95% CI: 0.8% to 5.8%), 3.4% higher kidney injury molecule-1 (1.1% to 5.7%), and 3.1% higher procollagen type III N-terminal propeptide (0.8% to 5.5%), but not with albuminuria (2.8%; -0.6% to 6.2%). Biomarkers of tubular damage may be more sensitive than albuminuria for detecting toxicity from TDF and other medications.
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143
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Kim D, Lee J, Kim DH, Kang K, Suh SJ, Jung YK, Yim HJ. [A Case of Tenofovir-associated Fanconi Syndrome in Patient with Chronic Hepatitis B]. THE KOREAN JOURNAL OF GASTROENTEROLOGY 2017; 68:317-320. [PMID: 28025475 DOI: 10.4166/kjg.2016.68.6.317] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Tenofovir disoproxil fumarate (TDF) is one of the most widely used treatment options for human immunodeficiency virus (HIV) and HBV infections. Despite its efficacy and safety, some cases of nephrotoxicity have been reported in the treatment of HIV patients. Even more recently, very few cases of Fanconi syndrome associated with tenofovir therapy in HBV monoinfection have been reported. Herein, we report a case of a 47-year-old male with an HBV monoinfection, who developed Fanconi syndrome and a secondary osteomalacia with multiple bone pain. After TDF withdrawal and supplementation of calcitriol, his renal function was reverted. Although the overall risk of TDF-associated nephrotoxicity is very low, both glomerular and tubular function should be monitored in patients undergoing TDF treatment.
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Affiliation(s)
- Dongwoo Kim
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Korea University Ansan Hospital, Ansan, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea
| | - Jongjin Lee
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Korea University Ansan Hospital, Ansan, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea
| | - Dae Ha Kim
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Korea University Ansan Hospital, Ansan, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea
| | - Kyuho Kang
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Korea University Ansan Hospital, Ansan, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea
| | - Sang Jun Suh
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Korea University Ansan Hospital, Ansan, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea
| | - Young Kul Jung
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Korea University Ansan Hospital, Ansan, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea
| | - Hyung Joon Yim
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Korea University Ansan Hospital, Ansan, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea
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144
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DeJesus E, Ramgopal M, Crofoot G, Ruane P, LaMarca A, Mills A, Martorell CT, de Wet J, Stellbrink HJ, Molina JM, Post FA, Valero IP, Porter D, Liu Y, Cheng A, Quirk E, SenGupta D, Cao H. Switching from efavirenz, emtricitabine, and tenofovir disoproxil fumarate to tenofovir alafenamide coformulated with rilpivirine and emtricitabine in virally suppressed adults with HIV-1 infection: a randomised, double-blind, multicentre, phase 3b, non-inferiority study. Lancet HIV 2017; 4:e205-e213. [PMID: 28259776 DOI: 10.1016/s2352-3018(17)30032-2] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2016] [Revised: 12/06/2016] [Accepted: 12/16/2016] [Indexed: 06/06/2023]
Abstract
BACKGROUND Tenofovir alafenamide is a prodrug that reduces tenofovir plasma concentrations by 90% compared with tenofovir disoproxil fumarate, thereby decreasing bone and renal risks. The coformulation of rilpivirine, emtricitabine, and tenofovir alafenamide has recently been approved, and we aimed to investigate the efficacy, safety, and tolerability of switching to this regimen compared with remaining on coformulated efavirenz, emtricitabine, and tenofovir disoproxil fumarate. METHODS In this randomised, double-blind, placebo-controlled, non-inferiority trial, HIV-1-infected adults were enrolled at 120 hospitals and outpatient clinics in eight countries in North America and Europe. Participants were virally suppressed (HIV-1 RNA <50 copies per mL) on efavirenz, emtricitabine, and tenofovir disoproxil fumarate for at least 6 months before enrolment and had creatinine clearance of at least 50 mL/min. Participants were randomly assigned (1:1) to receive a single-tablet regimen of rilpivirine (25 mg), emtricitabine (200 mg), and tenofovir alafenamide (25 mg) or to continue a single-tablet regimen of efavirenz (600 mg), emtricitabine (200 mg), and tenofovir disoproxil fumarate (300 mg), with matching placebo. Investigators, participants, study staff, and those assessing outcomes were masked to treatment group. The primary endpoint was the proportion of participants with plasma HIV-1 RNA of less than 50 copies per mL at week 48 (assessed by the US Food and Drug Administration snapshot algorithm), with a prespecified non-inferiority margin of 8%. This study was registered with ClinicalTrials.gov, number NCT02345226. FINDINGS Between Jan 26, 2015, and Aug 27, 2015, 875 participants were randomly assigned and treated (438 with rilpivirine, emtricitabine, and tenofovir alafenamide and 437 with efavirenz, emtricitabine, tenofovir disoproxil fumarate). Viral suppression at week 48 was maintained in 394 (90%) of 438 participants assigned to the tenofovir alafenamide regimen and 402 (92%) of 437 assigned to the tenofovir disoproxil fumarate regimen (difference -2·0%, 95·001% CI -5·9 to 1·8), demonstrating non-inferiority. 56 (13%) of 438 in participants in the rilpivirine, emtricitabine, and tenofovir alafenamide group experienced treatment-related adverse events compared with 45 (10%) of 437 in the efavirenz, emtricitabine, and tenofovir disoproxil fumarate group. INTERPRETATION Switching to rilpivirine, emtricitabine, and tenofovir alafenamide from efavirenz, emtricitabine, and tenofovir disoproxil fumarate was non-inferior in maintaining viral suppression and was well tolerated at 48 weeks. These findings support guidelines recommending tenofovir alafenamide-based regimens, including coformulation with rilpivirine and emtricitabine, as initial and ongoing treatment for HIV-1 infection. FUNDING Gilead Sciences.
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Affiliation(s)
| | - Moti Ramgopal
- Midway Immunology and Research Center, Fort Pierce, FL, USA
| | | | | | | | - Anthony Mills
- Southern California Men's Medical Group, Los Angeles, CA, USA
| | | | | | | | | | | | | | | | - YaPei Liu
- Gilead Sciences, Foster City, CA, USA
| | | | | | | | - Huyen Cao
- Gilead Sciences, Foster City, CA, USA.
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145
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Sheets KM, Atta MG, Fine DM, Zook K, Mcfall AM, Estrella MM, Schwartz GJ, Lucas GM. Longitudinal Assessment of Proximal Tubular Dysfunction in HIV Seropositive and Seronegative Persons: Correlates and Implications. J Acquir Immune Defic Syndr 2017; 75:45-51. [PMID: 28151777 PMCID: PMC5388566 DOI: 10.1097/qai.0000000000001302] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
BACKGROUND Proximal tubular dysfunction (PTD) is common in HIV-positive persons and has been associated with tenofovir disoproxil fumarate (TDF). However, few studies have assessed the natural history PTD in HIV-positive and -negative individuals, or the association of PTD with the subsequent trajectory of directly measured glomerular filtration rate (mGFR). METHODS We followed 192 HIV-positive and 100 HIV-negative, nondiabetic participants for 3 years. We measured 3 PTD markers (normoglycemic glycosuria, fractional excretion of phosphorus, and tubular proteinuria) and mGFR (by iohexol disappearance from serum) annually. We used univariate and multivariate generalized estimating equation logistic regression to identify factors associated with PTD across all visits and linear mixed effects models to assess the association between baseline PTD and mGFR slope. RESULTS Compared with HIV-negative participants, HIV-positive persons that were not taking antiretroviral therapy were at increased risk of PTD (adjusted odds ratio 3.33; 95% confidence interval: 1.65 to 6.71), whereas those taking a TDF-based or a TDF-sparing regimen were not at significantly increased risk of PTD. Among HIV-positive participants, uncontrolled viremia was a strong correlate of PTD. Forty-nine of 55 (89%) participants with PTD at baseline had at least 1 subsequent visit without PTD. There was no association between baseline PTD and rate of decline in mGFR over time. CONCLUSIONS Poorly controlled HIV may be a stronger risk factor for PTD than TDF use. The individual-level variability of the PTD markers over time was high, potentially limiting their usefulness for routine screening in unselected patients. Baseline PTD was not associated with subsequent mGFR slope.
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Affiliation(s)
- Kerry M Sheets
- *Internal Medicine Residency Training Program, Johns Hopkins Bayview Medical Center, Baltimore, MD; †Division of Nephrology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD; ‡Division of Infectious Diseases, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD; §Department of Epidemiology, Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD; ‖Kidney Health Research Collaborative, San Francisco VA Medical Center and University of California, San Francisco, CA; and ¶Department of Pediatrics, University of Rochester Medical Center, Rochester, NY
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146
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Zhao X, Sun K, Lan Z, Song W, Cheng L, Chi W, Chen J, Huo Y, Xu L, Liu X, Deng H, Siegenthaler JA, Chen L. Tenofovir and adefovir down-regulate mitochondrial chaperone TRAP1 and succinate dehydrogenase subunit B to metabolically reprogram glucose metabolism and induce nephrotoxicity. Sci Rep 2017; 7:46344. [PMID: 28397817 PMCID: PMC5387747 DOI: 10.1038/srep46344] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2016] [Accepted: 03/16/2017] [Indexed: 02/05/2023] Open
Abstract
Despite the therapeutic success of tenofovir (TFV) for treatment of HIV-1 infection, numerous cases of nephrotoxicity have been reported. Mitochondrial toxicity has been purported as the major target of TFV-associated renal tubulopathy but the underlying molecular mechanism remains unclear. In this report, we use metabolomics and proteomics with HK-2 cells and animal models to dissect the molecular pathways underlying nephropathy caused by TFV and its more toxic analog, adefovir (ADV). Proteomic analysis shows that mitochondrial chaperone TRAP1 and mtDNA replicating protein SSBP1 were significantly down-regulated in TFV and ADV treated HK-2 cells compared with controls. Transmission electron microscopy (TEM) revealed that TFV and ADV-treated HK-2 cells had accumulated glycogen, a phenotype that was also observed in mice treated with TFV and ADV. Analysis of the proteins in TCA cycle showed succinate dehydrogenase subunit B (SDHB) was nearly depleted in glucose oxidative phosphorylation pathway however certain enzymes in the glycolysis and glycogen synthesis pathway had elevated expression in TFV and ADV-treated HK-2 cells. These results suggest that TFV and ADV may cause mitochondrial dysfunction in renal tubular cells and reprogramming of glucose metabolism. The resulting glycogen accumulation may partially contribute to TFV and ADV induced renal dysfunction.
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Affiliation(s)
- Xinbin Zhao
- School of Pharmaceutical Sciences, Tsinghua University, Beijing, 100084, China
| | - Kun Sun
- School of Pharmaceutical Sciences, Tsinghua University, Beijing, 100084, China
| | - Zhou Lan
- School of Pharmaceutical Sciences, Tsinghua University, Beijing, 100084, China
| | - Wenxin Song
- School of Pharmaceutical Sciences, Tsinghua University, Beijing, 100084, China
| | - Lili Cheng
- School of Pharmaceutical Sciences, Tsinghua University, Beijing, 100084, China
| | - Wenna Chi
- School of Pharmaceutical Sciences, Tsinghua University, Beijing, 100084, China
- Collaborative Innovation Center for Biotherapy, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, Chengdu, 610041, China
| | - Jing Chen
- School of Pharmaceutical Sciences, Tsinghua University, Beijing, 100084, China
| | - Yi Huo
- MOE Key Laboratory of Bioinformatics, School of Life Sciences, Tsinghua University, Beijing, 100084, China
| | - Lina Xu
- Technology Center for Protein Sciences, School of Life Sciences, Tsinghua University, Beijing, 100084, China
| | - Xiaohui Liu
- Technology Center for Protein Sciences, School of Life Sciences, Tsinghua University, Beijing, 100084, China
| | - Haiteng Deng
- MOE Key Laboratory of Bioinformatics, School of Life Sciences, Tsinghua University, Beijing, 100084, China
| | - Julie A. Siegenthaler
- Department of Pediatrics, Denver-Anschutz Medical Campus, University of Colorado, Aurora, CO 80045, USA
| | - Ligong Chen
- School of Pharmaceutical Sciences, Tsinghua University, Beijing, 100084, China
- Collaborative Innovation Center for Biotherapy, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, Chengdu, 610041, China
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Tenofovir Disoproxil Fumarate Is a New Substrate of ATP-Binding Cassette Subfamily C Member 11. Antimicrob Agents Chemother 2017; 61:AAC.01725-16. [PMID: 28167562 DOI: 10.1128/aac.01725-16] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2016] [Accepted: 01/27/2017] [Indexed: 01/03/2023] Open
Abstract
Tenofovir disoproxil fumarate (TDF), a nucleotide reverse transcriptase inhibitor, after conversion to tenofovir (TFV), is mainly eliminated by glomerular filtration and active tubular secretion. The major adverse effect of tenofovir is nephrotoxicity; however, the exact mechanism remains poorly understood. In this study, the ATP-binding cassette subfamily C member 11 (ABCC11; multidrug resistance protein 8 [MRP8]) transporter, which is abundant in proximal tubular cells, was demonstrated to act as an efflux transporter of tenofovir. Real-time PCR (RT-PCR) and indirect immunofluorescence assays were used to determine MRP8 overexpression in a continuous cell line. Tenofovir accumulations were assessed by cytotoxicity, cellular transport, and vesicular uptake assays. Substrate specificity was confirmed using MK-571, an MRP-specific inhibitor, and methotrexate, which served as a known substrate. Intracellular and intravesicular concentrations of tenofovir were determined by liquid chromatography-tandem mass spectrometry (LC-MS/MS). The 50% cytotoxic concentration (CC50) of TDF in MRP8-overexpressing cells was 4.78 times higher than that of parental cells. Transport assays also showed that the intracellular accumulation of tenofovir in MRP8-overexpressing cells was 55 times lower than that in parental cells and was partly reversed by MK-571. Similarly, an "inside-out" vesicular uptake assay, using Sf9 inverted membrane vesicles to allow measuring of accumulation of the substrates into the vesicles, demonstrated a higher intravesicular concentration of tenofovir in MRP8-overexpressing vesicles than in Sf9 insect control vesicles. These effects were effectively reversed by increasing concentrations of the specific inhibitor MK-571. In conclusion, tenofovir is a new substrate of the MRP8 transporter. An alteration in the activity of this efflux pump may increase the intracellular accumulation of tenofovir in proximal renal tubular cells.
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Post FA, Yazdanpanah Y, Schembri G, Lazzarin A, Reynes J, Maggiolo F, Yan M, Abram ME, Tran-Muchowski C, Cheng A, Rhee MS. Efficacy and safety of emtricitabine/tenofovir alafenamide (FTC/TAF) vs. emtricitabine/tenofovir disoproxil fumarate (FTC/TDF) as a backbone for treatment of HIV-1 infection in virologically suppressed adults: subgroup analysis by third agent of a randomized, double-blind, active-controlled phase 3 trial<sup/>. HIV CLINICAL TRIALS 2017; 18:135-140. [PMID: 28303753 DOI: 10.1080/15284336.2017.1291867] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
BACKGROUND FTC/TAF was shown to be noninferior to FTC/TDF with advantages in markers of renal and bone safety. OBJECTIVE To evaluate the efficacy and safety of switching to FTC/TAF from FTC/TDF by third agent (boosted protease inhibitor [PI] vs. unboosted third agent). METHODS We conducted a 48-week subgroup analysis based on third agent from a randomized, double blind study in virologically suppressed adults on a FTC/TDF-containing regimen who switched to FTC/TAF vs. continued FTC/TDF while remaining on the same third agent. RESULTS We randomized (1:1) 663 participants to either switch to FTC/TAF (N = 333) or continue FTC/TDF (N = 330), each with baseline third agent stratifying by class of third agent in the prior treatment regimen (boosted PI 46%, unboosted third agent 54%). At week 48, significant differences in renal biomarkers and bone mineral density were observed favoring FTC/TAF over FTC/TDF (p < 0.05 for all), with similar improvements in the FTC/TAF arm in those who received boosted PI vs. unboosted third agents. At week 48, virologic success rates were similar between treatment groups for those who received a boosted PI (FTC/TAF 92%, FTC/TDF 93%) and for those who received an unboosted third agent (97% vs. 93%). CONCLUSIONS In virologically suppressed patients switching to FTC/TAF from FTC/TDF, high rates of virologic suppression were maintained, while renal and bone safety parameters improved, regardless of whether participants were receiving a boosted PI or an unboosted third agent. FTC/TAF offers safety advantages over FTC/TDF and can be an important option as an NRTI backbone given with a variety of third agents.
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Affiliation(s)
- Frank A Post
- a Kings College Hospital NHS Foundation Trust , Weston Education Centre (2.53) , London , UK
| | - Yazdan Yazdanpanah
- b Service des Maladies Infectieuses et Tropicales , Hospital Bichat-Claude Bernard , Paris , France
| | | | - Adriano Lazzarin
- d Divisione di Malattie Infettive , IRCCS Ospedale San Raffaele , Milano , Italy
| | - Jacques Reynes
- e Departement Des Maladies Infectieuses et Tropicales , CHU Gui De Chuliac , Montpellier , France
| | - Franco Maggiolo
- f US di Terapia Antivirale, USC di Malattie Infettive , Azienda Ospedaliera Papa Giovanni XXIII , Bergamo , Italy
| | - Mingjin Yan
- g Departments of Biometrics, Virology, Clinical Operations, and Clinical Research , Gilead Sciences Inc. , Foster City , CA , USA
| | - Michael E Abram
- g Departments of Biometrics, Virology, Clinical Operations, and Clinical Research , Gilead Sciences Inc. , Foster City , CA , USA
| | - Cecilia Tran-Muchowski
- g Departments of Biometrics, Virology, Clinical Operations, and Clinical Research , Gilead Sciences Inc. , Foster City , CA , USA
| | - Andrew Cheng
- g Departments of Biometrics, Virology, Clinical Operations, and Clinical Research , Gilead Sciences Inc. , Foster City , CA , USA
| | - Martin S Rhee
- g Departments of Biometrics, Virology, Clinical Operations, and Clinical Research , Gilead Sciences Inc. , Foster City , CA , USA
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Orkin C, DeJesus E, Ramgopal M, Crofoot G, Ruane P, LaMarca A, Mills A, Vandercam B, de Wet J, Rockstroh J, Lazzarin A, Rijnders B, Podzamczer D, Thalme A, Stoeckle M, Porter D, Liu HC, Cheng A, Quirk E, SenGupta D, Cao H. Switching from tenofovir disoproxil fumarate to tenofovir alafenamide coformulated with rilpivirine and emtricitabine in virally suppressed adults with HIV-1 infection: a randomised, double-blind, multicentre, phase 3b, non-inferiority study. Lancet HIV 2017; 4:e195-e204. [PMID: 28259777 DOI: 10.1016/s2352-3018(17)30031-0] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2016] [Revised: 12/06/2016] [Accepted: 12/16/2016] [Indexed: 01/08/2023]
Abstract
BACKGROUND Tenofovir alafenamide, a tenofovir prodrug, results in 90% lower tenofovir plasma concentrations than does tenofovir disproxil fumarate, thereby minimising bone and renal risks. We investigated the efficacy, safety, and tolerability of switching to a single-tablet regimen containing rilpivirine, emtricitabine, and tenofovir alafenamide compared with remaining on rilpivirine, emtricitabine, and tenofovir disoproxil fumarate. METHODS In this randomised, double-blind, multicentre, placebo-controlled, non-inferiority trial, HIV-1-infected adults were screened and enrolled at 119 hospitals in 11 countries in North America and Europe. Participants were virally suppressed (HIV-1 RNA <50 copies per mL) on rilpivirine, emtricitabine, and tenofovir disoproxil fumarate for at least 6 months before enrolment and had creatinine clearance of at least 50 mL/min. Participants were randomly assigned (1:1) to receive a single-tablet regimen of either rilpivirine (25 mg), emtricitabine (200 mg), and tenofovir alafenamide (25 mg) or to remain on a single-tablet regimen of rilpivirine (25 mg), emtricitabine (200 mg), and tenofovir disoproxil fumarate (300 mg), with matching placebo, once daily for 96 weeks. Investigators, participants, study staff, and those assessing outcomes were masked to treatment group. All participants who received one dose of study drug and were on the tenofovir disoproxil fumarate regimen before screening were included in primary efficacy analyses. The primary endpoint was the proportion of participants with less than 50 copies per mL of plasma HIV-1 RNA at week 48 (by the US Food and Drug Administration snapshot algorithm), with a prespecified non-inferiority margin of 8%. This study was registered with ClinicalTrials.gov, number NCT01815736. FINDINGS Between Jan 26, 2015, and Aug 25, 2015, 630 participants were randomised (316 to the tenofovir alafenamide group and 314 to the tenofovir disoproxil fumarate group). At week 48, 296 (94%) of 316 participants on tenofovir alafenamide and 294 (94%) of 313 on tenofovir disoproxil fumarate had maintained less than 50 copies per mL HIV-1 RNA (difference -0·3%, 95·001% CI -4·2 to 3·7), showing non-inferiority of tenofovir alafenamide to tenofovir disoproxil fumarate. Numbers of adverse events were similar between groups. 20 (6%) of 316 participants had study-drug related adverse events in the tenofovir alafenamide group compared with 37 (12%) of 314 in the tenofovir disoproxil fumarate group; none of these were serious. INTERPRETATION Switching to rilpivirine, emtricitabine, and tenofovir alafenamide was non-inferior to continuing rilpivirine, emtricitabine, tenofovir disoproxil fumarate in maintaining viral suppression and was well tolerated at 48 weeks. These findings support guidelines recommending tenofovir alafenamide-based regimens, including coformulation with rilpivirine and emtricitabine, as initial and ongoing treatment for HIV-1 infection. FUNDING Gilead Sciences.
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Affiliation(s)
- Chloe Orkin
- Grahame Hayton Unit, Royal London Hospital, London, UK
| | | | - Moti Ramgopal
- Midway Immunology and Research Center, Fort Pierce, FL, USA
| | | | - Peter Ruane
- Ruane Clinical Research Group, Los Angeles, CA, USA
| | | | - Anthony Mills
- Southern California Men's Medical Group, Los Angeles, CA, USA
| | - Bernard Vandercam
- Department of Internal Medicine, Cliniques Universitaires Saint-Luc, Bruxelles, Belgium
| | | | - Jürgen Rockstroh
- Department of Internal Medicine I, University Hospital Bonn, Bonn, Denmark
| | - Adriano Lazzarin
- Dipartimento di Malattie Infettive, Ospedale San Raffaele Srl, Milan, Italy
| | - Bart Rijnders
- Erasmus MC, Department of Internal Medicine, Rotterdam, Netherlands
| | - Daniel Podzamczer
- Infectious Diseases Service, AIDS Unit, Hospital Universitari de Bellvitge, Barcelona, Spain
| | | | - Marcel Stoeckle
- Universitatsspital Basel, Medizinische Poliklinik, Basel, Switzerland
| | | | - Hui C Liu
- Gilead Sciences, Foster City, CA, USA
| | | | | | | | - Huyen Cao
- Gilead Sciences, Foster City, CA, USA.
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Saeedi R, Mojebi-Mogharar A, Sandhu SK, Dubland JA, Ford JA, Yousefi M, Pudek M, Holmes DT, Erb SR, Peter Kwan WC, Kendler DL, Yoshida EM. Lamivudine, Entecavir, or Tenofovir Treatment of Hepatitis B Infection: Effects on Calcium, Phosphate, FGF23 and Indicators of Bone Metabolism. Ann Hepatol 2017; 16:207-214. [DOI: 10.5604/16652681.1231580] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 08/30/2023]
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