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Wei T, Zhou BY, Wu XH, Liu XA, Huo MW, Huang XX, Shi LZ, Shi LL, Cao QR. Development of Polyvinyl Alcohol/Polyethylene Glycol Copolymer-based Orodispersible Films Loaded with Entecavir: Formulation and In vitro Characterization. Curr Drug Deliv 2024; 21:1362-1374. [PMID: 37929732 DOI: 10.2174/0115672018261294231024093926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 08/08/2023] [Accepted: 09/06/2023] [Indexed: 11/07/2023]
Abstract
PURPOSE The aim of the study is to prepare entecavir (ETV)-loaded orodispersible films (ODFs) using polyvinyl alcohol (PVA)/polyethylene glycol (PEG) graft copolymer (Kollicoat® IR) as a film-forming agent, and further to evaluate the dissolution rate, mechanical and physicochemical properties of films. METHODS ETV-ODFs were prepared by a solvent casting method. The amount of film-forming agent, plasticizer, and disintegrating agent was optimized in terms of the appearance, thickness, disintegration time and mechanical properties of ODFs. The compatibility between the drug and each excipient was conducted under high temperature (60 °C), high humidity (RH 92.5%), and strong light (4500 Lx) for 10 days. The dissolution study of optimal ODFs compared with the original commercial tablet (Baraclude®) was performed using a paddle method in pH 1.0, pH 4.5, pH 6.8, and pH 7.4 media at 37 °C. The morphology of ODFs was observed via scanning electron microscopy (SEM). The mechanical properties such as tensile strength (TS), elastic modulus (EM), and percentage elongation (E%) of ODFs were evaluated using the universal testing machine. The physicochemical properties of ODFs were investigated using X-ray diffraction (XRD), differential scanning calorimetry (DSC), and Fourier transform infrared spectroscopy (FT-IR). RESULTS The related substances were less than 0.5% under high temperature, high humidity, and strong light for 10 days when ETV was mixed with excipients. The optimal formulation of ODFs was set as the quality ratio of Kollicoat® IR, glycerol, sodium alginate (ALG-Na): TiO2: MCC+CMC-Na: ETV was 60:9:12:1:1:1. The drug-loaded ODFs were white and translucent with excellent stripping property. The thickness, disintegration time, EM, TS, and E% were 103.33±7.02 μm, 25.31±1.95 s, 25.34±8.69 Mpa, 2.14±0.26 Mpa, and 65.45±19.41 %, respectively. The cumulative drug release from ODFs was more than 90% in four different media at 10 min. The SEM showed that the drug was highly dispersible in ODFs, and the XRD, DSC, and FT-IR results showed that there occurred some interactions between the drug and excipients. CONCLUSION In conclusion, the developed ETV-loaded ODFs showed relatively short disintegration time, rapid drug dissolution, and excellent mechanical properties. This might be an alternative to conventional ETV Tablets for the treatment of chronic hepatitis B.
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Affiliation(s)
- Teng Wei
- College of Pharmaceutical Sciences, Soochow University, Suzhou, People's Republic of China
| | - Bing-Yu Zhou
- Dongliao People's Hospital, Liaoyuan, People's Republic of China
| | - Xin-Hong Wu
- College of Pharmaceutical Sciences, Soochow University, Suzhou, People's Republic of China
| | - Xue-Ai Liu
- College of Pharmaceutical Sciences, Soochow University, Suzhou, People's Republic of China
| | - Ming-Wei Huo
- College of Pharmaceutical Sciences, Soochow University, Suzhou, People's Republic of China
| | - Xiang-Xiang Huang
- College of Pharmaceutical Sciences, Soochow University, Suzhou, People's Republic of China
| | - Ling-Zhi Shi
- College of Pharmaceutical Sciences, Soochow University, Suzhou, People's Republic of China
| | - Li-Li Shi
- College of Medicine, Jiaxing University, Jiaxing, People's Republic of China
| | - Qin-Ri Cao
- College of Pharmaceutical Sciences, Soochow University, Suzhou, People's Republic of China
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Jose-Abrego A, Roman S, Rebello Pinho JR, Gomes-Gouvêa MS, Panduro A. High Frequency of Antiviral Resistance Mutations in HBV Genotypes A2 and H: Multidrug Resistance Strains in Mexico. J Clin Transl Hepatol 2023; 11:1023-1034. [PMID: 37577226 PMCID: PMC10412697 DOI: 10.14218/jcth.2022.00135s] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 04/04/2023] [Accepted: 04/18/2023] [Indexed: 07/03/2023] Open
Abstract
Background and Aims Lamivudine (3TC), telbivudine (LdT), entecavir (ETV), adefovir (ADF), and tenofovir (TFV) are drugs used to treat hepatitis B virus (HBV) infection, but specific mutations allow some viruses to become resistant to antiviral drugs or to acquire immune escape capacities. These mutations have not been thoroughly investigated in Mexico. This study aimed to estimate the prevalence of HBV antiviral resistance and escape mutations. Methods This cross-sectional study analyzed 158 samples. HBV DNA was extracted, amplified, and sequenced in serum samples using the spin column method, PCR assay, and Sanger's sequencing, respectively. HBV genotypes were determined, and HBV mutations were tested using the Geno2pheno tool. Results Overall, 68.4% (108/158) of HBV patients were infected with genotype H, followed by G (11.4%, 18/158), A2 (10.8%, 17/158), F1b (6.9.0%, 11/158), D (1.9%, 3/158), and E (0.6%, 1/158), and 5.1% (8/158) had evidence of recombination. The prevalence of resistance mutations was 8.2% (13/158) and the most common combined mutation was rt180M+rt204V. Notably, we found the combinations rt180M+rt204V+rt173L (n=2) and rt180M+rt204V+rt202G (n=1) that confer multidrug resistance to 3TC, LdT, and ETV. Resistance mutations were found in genotypes A2 (11.8%, 2/17), and H (10.2%, 11/108), and escape mutations were detected in HBV genotypes A2 (11.8%, 2/17), H (10.2%, 11/108), F1b (9.1%, 1/11) and G (5.6%, 1/18). Conclusions The highest prevalence of antiviral resistance mutations or escape mutations was detected in HBV genotypes A2 and H. The earliest cases of HBV multidrug resistance were detected in Mexico.
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Affiliation(s)
- Alexis Jose-Abrego
- Department of Genomic Medicine in Hepatology, Civil Hospital of Guadalajara, “Fray Antonio Alcalde,” Guadalajara, Jalisco, Mexico
- Health Sciences Center, University of Guadalajara, Guadalajara, Jalisco, Mexico
| | - Sonia Roman
- Department of Genomic Medicine in Hepatology, Civil Hospital of Guadalajara, “Fray Antonio Alcalde,” Guadalajara, Jalisco, Mexico
- Health Sciences Center, University of Guadalajara, Guadalajara, Jalisco, Mexico
| | - João Renato Rebello Pinho
- LIM07, Department of Gastroenterology, University of São Paulo, São Paulo, Brazil
- Hospital Israelita Albert Einstein, São Paulo, Brazil
| | | | - Arturo Panduro
- Department of Genomic Medicine in Hepatology, Civil Hospital of Guadalajara, “Fray Antonio Alcalde,” Guadalajara, Jalisco, Mexico
- Health Sciences Center, University of Guadalajara, Guadalajara, Jalisco, Mexico
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Wandera BO, Onyango DM, Musyoki SK. Hepatitis B virus genetic multiplicity and the associated HBV lamivudine resistance mutations in HBV/HIV co-infection in Western Kenya: A review article. INFECTION, GENETICS AND EVOLUTION : JOURNAL OF MOLECULAR EPIDEMIOLOGY AND EVOLUTIONARY GENETICS IN INFECTIOUS DISEASES 2022; 98:105197. [PMID: 34954390 DOI: 10.1016/j.meegid.2021.105197] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 12/17/2021] [Accepted: 12/20/2021] [Indexed: 06/14/2023]
Abstract
BACKGROUND Hepatitis B virus (HBV) and human immunodeficiency virus (HIV) co-infections are common as the two viruses use same routes of transmission. Studies show that HIV infection modifies the natural course of chronic HBV infection, leading to more severe and progressive liver disease, and a higher incidence of cirrhosis, liver cancer and mortality. Therefore, determining HBV status and genotypes among HIV co-infected patients would improve their therapeutic management. OBJECTIVE This article reviewed the HBV genetic multiplicity and the associated HBV Lamivudine resistance mutations in HBV/HIV co-infection in western Kenya. METHODS Comprehensive literature searches and analysis were performed in peer-reviewed journals in the National council for biotechnology information (NCBI), PubMed, and Web of science using key words of HIV, Hepatitis B genotypes, HBV/HIV co-infection and Lamivudine resistance. RESULTS HBV genotype A is predominant. D and E are also present in Kenya and neighboring countries in the region. HBV polymerase rtV173L, rtL180M, and rtM204V major substitutional mutations were identified. Currently, TDF + 3TC + DTG are recommended for treatment of HBV/HIV co-infection. CONCLUSION Evidence shows that HBV/HIV co-infection places a heavy burden to the society. Along with ART regimen, HBV genotype is a major factor determining the course of disease and treatment outcome. Treating HIV in HBV/HIV co-infection with antiretroviral agents may result in a very high prevalence of HBV 3TC-resistance mutations. Therefore, improved screening for HBV and extended follow-up of HBV/HIV co-infected individuals is needed to better understand the impact of different ART regimens on clinical outcomes.
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Affiliation(s)
- Bernard Onyango Wandera
- School of Biological and Physical Sciences, Maseno University, P.O. Box Private Bag, Maseno, Kisumu, Kenya.
| | - David Miruka Onyango
- School of Biological and Physical Sciences, Maseno University, P.O. Box Private Bag, Maseno, Kisumu, Kenya
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Higuera-de-la-Tijera F, Castro-Narro GE, Velarde-Ruiz Velasco JA, Cerda-Reyes E, Moreno-Alcántar R, Aiza-Haddad I, Castillo-Barradas M, Cisneros-Garza LE, Dehesa-Violante M, Flores-Calderón J, González-Huezo MS, Márquez-Guillén E, Muñóz-Espinosa LE, Pérez-Hernández JL, Ramos-Gómez MV, Sierra-Madero J, Sánchez-Ávila JF, Torre-Delgadillo A, Torres R, Marín-López ER, Kershenobich D, Wolpert-Barraza E. Asociación Mexicana de Hepatología A.C. Clinical guideline on hepatitis B. REVISTA DE GASTROENTEROLOGIA DE MEXICO (ENGLISH) 2021; 86:403-432. [PMID: 34483073 DOI: 10.1016/j.rgmxen.2021.04.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Accepted: 04/14/2021] [Indexed: 12/24/2022]
Abstract
Hepatitis B virus (HBV) infection continues to be a worldwide public health problem. In Mexico, at least three million adults are estimated to have acquired hepatitis B (total hepatitis B core antibody [anti-HBc]-positive), and of those, 300,000 active carriers (hepatitis B surface antigen [HBsAg]-positive) could require treatment. Because HBV is preventable through vaccination, its universal application should be emphasized. HBV infection is a major risk factor for developing hepatocellular carcinoma. Semi-annual liver ultrasound and serum alpha-fetoprotein testing favor early detection of that cancer and should be carried out in all patients with chronic HBV infection, regardless of the presence of advanced fibrosis or cirrhosis. Currently, nucleoside/nucleotide analogues that have a high barrier to resistance are the first-line therapies.
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Affiliation(s)
- F Higuera-de-la-Tijera
- Departamento de Gastroenterología, Hospital General de México "Dr. Eduardo Liceaga", Mexico City, Mexico
| | - G E Castro-Narro
- Departamento de Gastroenterología, Instituto Nacional de Ciencias Médicas y Nutrición "Salvador Zubirán", Mexico City, Mexico.
| | - J A Velarde-Ruiz Velasco
- Departamento de Gastroenterología, Hospital Civil de Guadalajara "Fray Antonio Alcalde", Guadalajara, Jalisco, Mexico
| | - E Cerda-Reyes
- Departamento de Gastroenterología, Hospital Central Militar, Mexico City, Mexico
| | - R Moreno-Alcántar
- Departamento de Gastroenterología, Hospital de Especialidades del Centro Médico Nacional Siglo XXI, IMSS, Mexico City, Mexico
| | - I Aiza-Haddad
- Clínica de Enfermedades Hepáticas, Hospital Ángeles Lomas, Mexico City, Mexico
| | - M Castillo-Barradas
- Departamento de Gastroenterología, Hospital de Especialidades del Centro Médico Nacional "La Raza", IMSS, Mexico City, Mexico
| | - L E Cisneros-Garza
- Centro de Enfermedades Hepáticas, Hospital San José, Nuevo León, Monterrey, Mexico
| | - M Dehesa-Violante
- Fundación Mexicana para la Salud Hepática A.C. (FUNDHEPA), Mexico City, Mexico
| | - J Flores-Calderón
- Departamento de Gastroenterología, Hospital de Pediatría del Centro Médico Nacional Siglo XXI, IMSS, Mexico City, Mexico
| | - M S González-Huezo
- Servicio de Gastroenterología y Endoscopia Gastrointestinal, ISSSEMYM, Metepec, Estado de México, Mexico
| | - E Márquez-Guillén
- Departamento de Gastroenterología, Instituto Nacional de Ciencias Médicas y Nutrición "Salvador Zubirán", Mexico City, Mexico
| | - L E Muñóz-Espinosa
- Clínica de Hígado, Departamento de Medicina Interna, Hospital Universitario "Dr. José E. González", Universidad Autónoma de Nuevo León, Monterrey, Nuevo León, Mexico
| | - J L Pérez-Hernández
- Departamento de Gastroenterología, Hospital General de México "Dr. Eduardo Liceaga", Mexico City, Mexico
| | - M V Ramos-Gómez
- Departamento de Gastroenterología, Centro Médico Nacional "20 de Noviembre", ISSSTE, Mexico City, Mexico
| | - J Sierra-Madero
- Departamento de Gastroenterología, Instituto Nacional de Ciencias Médicas y Nutrición "Salvador Zubirán", Mexico City, Mexico
| | - J F Sánchez-Ávila
- Tecnológico de Monterrey, Escuela de Medicina y Ciencias de la Salud, Mexico City, Mexico
| | - A Torre-Delgadillo
- Departamento de Gastroenterología, Instituto Nacional de Ciencias Médicas y Nutrición "Salvador Zubirán", Mexico City, Mexico
| | - R Torres
- Hospital de Infectología del Centro Médico Nacional "La Raza", IMSS, Mexico City, Mexico
| | | | - D Kershenobich
- Departamento de Gastroenterología, Instituto Nacional de Ciencias Médicas y Nutrición "Salvador Zubirán", Mexico City, Mexico
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Higuera-de-la-Tijera F, Castro-Narro GE, Velarde-Ruiz Velasco JA, Cerda-Reyes E, Moreno-Alcántar R, Aiza-Haddad I, Castillo-Barradas M, Cisneros-Garza LE, Dehesa-Violante M, Flores-Calderón J, González-Huezo MS, Márquez-Guillén E, Muñóz-Espinosa LE, Pérez-Hernández JL, Ramos-Gómez MV, Sierra-Madero J, Sánchez-Ávila JF, Torre-Delgadillo A, Torres R, Marín-López ER, Kershenobich D, Wolpert-Barraza E. Asociación Mexicana de Hepatología A.C. Clinical guideline on hepatitis B. REVISTA DE GASTROENTEROLOGIA DE MEXICO (ENGLISH) 2021; 86:S0375-0906(21)00061-6. [PMID: 34384668 DOI: 10.1016/j.rgmx.2021.04.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 04/11/2021] [Accepted: 04/14/2021] [Indexed: 02/07/2023]
Abstract
Hepatitis B virus (HBV) infection continues to be a worldwide public health problem. In Mexico, at least three million adults are estimated to have acquired hepatitis B (total hepatitis B core antibody [anti-HBc]-positive), and of those, 300,000 active carriers (hepatitis B surface antigen [HBsAg]-positive) could require treatment. Because HBV is preventable through vaccination, its universal application should be emphasized. HBV infection is a major risk factor for developing hepatocellular carcinoma. Semi-annual liver ultrasound and serum alpha-fetoprotein testing favor early detection of that cancer and should be carried out in all patients with chronic HBV infection, regardless of the presence of advanced fibrosis or cirrhosis. Currently, nucleoside/nucleotide analogues that have a high barrier to resistance are the first-line therapies.
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Affiliation(s)
- F Higuera-de-la-Tijera
- Departamento de Gastroenterología, Hospital General de México «Dr. Eduardo Liceaga», Ciudad de México, México
| | - G E Castro-Narro
- Departamento de Gastroenterología, Instituto Nacional de Ciencias Médicas y Nutrición «Salvador Zubirán», Ciudad de México, México.
| | - J A Velarde-Ruiz Velasco
- Departamento de Gastroenterología, Hospital Civil de Guadalajara «Fray Antonio Alcalde», Guadalajara, Jalisco, México
| | - E Cerda-Reyes
- Departamento de Gastroenterología, Hospital Central Militar, Ciudad de México, México
| | - R Moreno-Alcántar
- Departamento de Gastroenterología, Hospital de Especialidades del Centro Médico Nacional Siglo XXI, IMSS, Ciudad de México, México
| | - I Aiza-Haddad
- Clínica de Enfermedades Hepáticas, Hospital Ángeles Lomas, Ciudad de México, México
| | - M Castillo-Barradas
- Departamento de Gastroenterología, Hospital de Especialidades del Centro Médico Nacional «La Raza», IMSS, Ciudad de México, México
| | - L E Cisneros-Garza
- Centro de Enfermedades Hepáticas, Hospital San José, Nuevo León, Monterrey, México
| | - M Dehesa-Violante
- Fundación Mexicana para la Salud Hepática A.C. (FUNDHEPA), Ciudad de México, México
| | - J Flores-Calderón
- Departamento de Gastroenterología, Hospital de Pediatría del Centro Médico Nacional Siglo XXI, IMSS, Ciudad de México, México
| | - M S González-Huezo
- Servicio de Gastroenterología y Endoscopia Gastrointestinal, ISSSEMYM, Metepec, Estado de México, México
| | - E Márquez-Guillén
- Departamento de Gastroenterología, Instituto Nacional de Ciencias Médicas y Nutrición «Salvador Zubirán», Ciudad de México, México
| | - L E Muñóz-Espinosa
- Clínica de Hígado, Departamento de Medicina Interna, Hospital Universitario «Dr. José E. González», Universidad Autónoma de Nuevo León, Monterrey, Nuevo León, México
| | - J L Pérez-Hernández
- Departamento de Gastroenterología, Hospital General de México «Dr. Eduardo Liceaga», Ciudad de México, México
| | - M V Ramos-Gómez
- Departamento de Gastroenterología, Centro Médico Nacional «20 de Noviembre», ISSSTE, Ciudad de México, México
| | - J Sierra-Madero
- Departamento de Gastroenterología, Instituto Nacional de Ciencias Médicas y Nutrición «Salvador Zubirán», Ciudad de México, México
| | - J F Sánchez-Ávila
- Tecnológico de Monterrey, Escuela de Medicina y Ciencias de la Salud, Ciudad de México, México
| | - A Torre-Delgadillo
- Departamento de Gastroenterología, Instituto Nacional de Ciencias Médicas y Nutrición «Salvador Zubirán», Ciudad de México, México
| | - R Torres
- Hospital de Infectología del Centro Médico Nacional «La Raza», IMSS, Ciudad de México, México
| | | | - D Kershenobich
- Departamento de Gastroenterología, Instituto Nacional de Ciencias Médicas y Nutrición «Salvador Zubirán», Ciudad de México, México
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Yang R, Gui X, Ke H, Xiong Y, Gao S. Long-term observation on hepatitis B surface antigen seroclearance in therapy experienced HIV/HBV co-infected Chinese. J Viral Hepat 2020; 27:127-134. [PMID: 31571343 DOI: 10.1111/jvh.13212] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Revised: 08/14/2019] [Accepted: 08/27/2019] [Indexed: 12/12/2022]
Abstract
The aim of this retrospective study was to observe hepatitis B surface antigen (HBsAg) seroclearance and explore predictors of HBsAg loss in HIV/HBV-co-infected patients receiving long-term lamivudine or both tenofovir and lamivudine containing therapies. Quantification of HBsAg, hepatitis B e antigen and HBV DNA before and after initiation of HBV-active antiretroviral therapy in a total of 268 HIV/HBV-co-infected patients started treatment between 2005 and 2017 were performed. Over a median of 65.63 months of follow-up, 10 (3.7%) were observed HBsAg loss and the quantification of HBsAg in 7 (2.6%) patients were less than 50 IU/mL. With the prolongation of antiretroviral therapy duration time, the rates of HBsAg seroclearance tended to increase gradually, rising from 1.8% (3/163) during 2-4 years treatment to 29.4% (10/34) after antiretroviral therapy for up to 10 years. Lower baseline qHBsAg and HBV DNA levels and strong 12-month declines in qHBsAg were significantly associated with HBsAg seroclearance. The event of HBsAg seroclearance is uncommon among Chinese individuals with HIV/HBV co-infection who have been treated with anti-HBV containing antiretroviral therapy, and lifelong therapy for HBV is needed for HIV/HBV co-infected patients. Baseline qHBsAg and HBV DNA levels and qHBsAg decline rate were predictors for HBsAg seroclearance.
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Affiliation(s)
- Rongrong Yang
- Department of Infectious Diseases, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Xien Gui
- Department of Infectious Diseases, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Hengning Ke
- Department of Infectious Diseases, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Yong Xiong
- Department of Infectious Diseases, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Shicheng Gao
- Department of Infectious Diseases, Zhongnan Hospital of Wuhan University, Wuhan, China
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Cutrell J, Jodlowski T, Bedimo R. The management of treatment-experienced HIV patients (including virologic failure and switches). Ther Adv Infect Dis 2020; 7:2049936120901395. [PMID: 32010443 PMCID: PMC6974747 DOI: 10.1177/2049936120901395] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2019] [Accepted: 11/22/2019] [Indexed: 02/06/2023] Open
Abstract
Significant advances in the potency and tolerability of antiretroviral therapy (ART) have led to very high rates of virologic success for most who remain adherent to therapy. As a result, the life expectancy of people living with HIV (PLWH) has increased significantly. PLWH do, however, continue to experience a significantly higher risk of noninfectious comorbidities and chronic age-related complications, including cardiovascular disease and malignancies, which are now the biggest drivers of this excess morbidity and mortality. Therefore, in addition to virologic failure, the management of the treatment-experienced patient increasingly requires optimization of ART to enhance tolerability, avoid drug-drug interactions, and mitigate non-AIDS complications and comorbid conditions. This article will present principles of the management of virologic failure, poor immunologic recovery, and strategies for optimizing ART in the setting of virologic suppression.
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Affiliation(s)
- James Cutrell
- Department of Medicine, University of Texas Southwestern Medical Center, Dallas, USA
| | - Tomasz Jodlowski
- Department of Pharmacy, VA North Texas Health Care System, Dallas, USA
| | - Roger Bedimo
- Department of Medicine, VA North Texas Health Care System and the University of Texas Southwestern Medical Center, 4500 South Lancaster Road, 111-D, Dallas, TX 75216, USA
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