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Antiviral Therapy

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https://www.readbyqxmd.com/read/28731422/frailty-in-men-living-with-hiv-a-cross-sectional-comparison-of-three-frailty-instruments
#1
Hui-Ling Yeoh, Allen Cheng, Clovis Palmer, Suzanne M Crowe, Jennifer F Hoy
BACKGROUND: Potent antiretroviral treatment has resulted in near normal life expectancy for people living with HIV. Consequently, there is an increased focus on comorbidities, frailty and quality of life. METHODS: We assessed and compared the prevalence of frailty, associated factors and relationship with quality of life in older Australian men living with HIV in a cross-sectional study using three frailty measurements. The Frailty Phenotype, Frailty Index, and Edmonton Frail Scale were applied to 93 HIV-infected men aged over 50 years, on antiretroviral therapy...
July 21, 2017: Antiviral Therapy
https://www.readbyqxmd.com/read/28730994/baseline-and-post-treatment-hepatitis-c-ns5a-resistance-in-relapsed-patients-from-a-multicentric-real-life-cohort
#2
Philippe Halfon, Caroline Scholtès, Jacques Izopet, Sylvie Larrat, Pascale Trimoulet, Fabien Zoulim, Laurent Alric, Sophie Métivier, Vincent Leroy, Denis Ouzan, Victor de Lédinghen, Sofiane Mohamed, Guillaume Pénaranda, Hacène Khiri, Marie-Ange Thélu, Anne Plauzolles, Laurent Chiche, Marc Bourlière, Florence Abravanel
BACKGROUND: Recent data have suggested that failure to achieve sustained virological response with direct-acting antiviral therapy is usually due to relapse and is primarily associated with the emergence of resistance-associated substitutions. The aim of this study was to investigate the prevalence and characterization of non-structural-5A resistance-associated substitutions in patients infected with hepatitis C virus genotypes 1, 3, and 4 treated by direct-acting antiviral therapy, including anti- non-structural-5A, and to characterize the preexisting resistance-associated substitutions in subjects treated with anti- non-structural-5A inhibitors...
July 21, 2017: Antiviral Therapy
https://www.readbyqxmd.com/read/28694390/in-vitro-susceptibility-of-geographically-and-temporally-distinct-zika-viruses-to-favipiravir-and-ribavirin
#3
Mariana Baz, Nathalie Goyette, Bryan D Griffin, Gary P Kobinger, Guy Boivin
BACKGROUND: Zika virus (ZIKV), a previously neglected mosquito-borne virus, is prompting worldwide concern because of its connection with congenital defects, Guillain-Barré syndrome, meningoencephalitis and myelitis in infected individuals. However, no specific antiviral therapy is available at present. In this study, we investigated the in vitro susceptibility of geographically and temporally distinct zika viruses against the RNA polymerase inhibitors, favipiravir (T-705) and ribavirin (RIBV)...
July 11, 2017: Antiviral Therapy
https://www.readbyqxmd.com/read/28671553/the-ultra-short-virological-dynamics-in-response-to-entecavir-or-lamivudine-during-chronic-hepatitis-b-with-spontaneous-severe-acute-exacerbation
#4
Teng-Yu Lee, Chi-Yi Chen, Hsueh-Chou Lia, Yu-Chung Hsu, Sheng-Shun Yang
BACKGROUND: Nucleos(t)ide analogue (NA) therapy could be life-saving in chronic hepatitis B (CHB) with spontaneous severe acute exacerbation (SAE). We aimed to investigate the ultra-short virological responses to NA. METHODS: We conducted a randomized controlled trial in which CHB patients with spontaneous SAE were randomized to receive lamivudine (LVD) or entecavir (ETV) between July 2012 and April 2016 (ClinicalTrials.gov: NCT01627223). The serum hepatitis B virus (HBV) viral loads on day 1 (baseline), 3, 5, 8, 15, 22, 29, 85, and 180 after initiating NA therapy were checked and analyzed...
July 3, 2017: Antiviral Therapy
https://www.readbyqxmd.com/read/28650844/long-term-persistence-of-hcv-ns5a-resistance-associated-substitutions-after-treatment-with-the-hcv-ns5a-inhibitor-ledipasvir-without-sofosbuvir
#5
David Wyles, Alessandra Mangia, Wendy Cheng, Stephen Shafran, Christian Schwabe, Wen Ouyang, Charlotte Hedskog, John McNally, Diana M Brainard, Brian P Doehle, Evguenia Svarovskaia, Michael D Miller, Hongmei Mo, Hadas Dvory-Sobol
BACKGROUND: Data on persistence of NS5A resistance associated substitutions (RASs) may have implications for resistance testing approaches and selection of initial and retreatment strategies. METHODS: Long-term persistence of NS5A RASs in HCV genotype (GT) 1 infected subjects (n=76) who did not achieve sustained virologic response after receiving ledipasvir (LDV) without sofosbuvir (SOF) and were subsequently enrolled in an ongoing 3-year follow-up registry study was investigated by population or deep sequencing...
June 26, 2017: Antiviral Therapy
https://www.readbyqxmd.com/read/28635613/association-of-the-s267f-variant-on-ntcp-gene-and-treatment-response-to-pegylated-interferon-in-patients-with-chronic-hepatitis-b-a-multicentre-study
#6
Kessarin Thanapirom, Sirinporn Suksawatamnuay, Wattana Sukeepaisarnjaroen, Sombat Treeprasertsuk, Tawesak Tanwandee, Phunchai Charatcharoenwitthaya, Satawat Thongsawat, Apinya Leerapun, Teerha Piratvisuth, Rattana Boonsirichan, Chalermrat Bunchorntavakul, Chaowalit Pattanasirigool, Bubpha Pornthisarn, Supoj Tuntipanichteerakul, Ekawee Sripariwuth, Woramon Jeamsripong, Teeranan Sanpanjit, Yong Poovorawan, Piyawat Komolmit
BACKGROUND: Sodium taurocholate co-transporting polypeptide (NTCP) is a cell receptor for hepatitis B virus (HBV). The S267F variant on the NTCP gene is inversely associated with the chronicity of HBV infection, progression to cirrhosis and hepatocellular carcinoma in East Asian populations. This aim of this study was to determine whether the S267F variant was associated with response to pegylated interferon (Peg-IFN) in patients with chronic HBV infection. METHODS: Two hundred and fifty-seven patients with chronic HBV, treated with Peg-IFN for 48 weeks, were identified from 13 tertiary hospitals included in the hepatitis B database of the Thai Association for the Study of the Liver (THASL)...
June 21, 2017: Antiviral Therapy
https://www.readbyqxmd.com/read/28627486/the-association-between-detected-drug-resistance-mutations-and-cd4-t-cell-decline-in-hiv-positive-individuals-maintained-on-a-failing-treatment-regimen
#7
Anna Schultze, Roger Paredes, Caroline Sabin, Andrew N Phillips, Deenan Pillay, Nicola Mackie, Antonella Castagna, David Chadwick, Karolin Falconer, Anna Maria Geretti, Frank A Post, Teresa Hill, Ole Kirk, Anton Pozniak, Mark Nelson, Anna Tostevin, David Dunn, Jens Lundgren, Alessandro Cozzi-Lepri
BACKGROUND: To analyse the effect of drug resistance mutations (DRM) on CD4 cell trends in HIV-positive people maintained on virologically failing antiretroviral therapy (ART). METHODS: Individuals from two large cohorts experiencing virological failure (VF) while maintained on ART with >1 CD4 count and >1 resistance test were included. CD4 cell slopes were estimated using linear mixed models. Principal component analysis (PCA) was used to assess the effect of clusters of mutations, defined using extracted component based scores from the PCA, on CD4 cell decline...
June 19, 2017: Antiviral Therapy
https://www.readbyqxmd.com/read/28594332/pooled-analysis-of-hcv-genotype-1-resistance-associated-substitutions-in-ns5a-ns3-and-ns5b-pre-and-post-treatment-with-12-weeks-of-daclatasvir-asunaprevir-and-beclabuvir
#8
Fiona McPhee, Dennis Hernandez, Nannan Zhou, Joseph Ueland, Fei Yu, Vincent Vellucci, Xin Huang, Xuning Wang, Hiroki Ishikawa, Yoshiyasu Karino, Hiromitsu Kumada
BACKGROUND: Daclatasvir (DCV; non-structural [NS]5A inhibitor) plus asunaprevir (ASV; NS3 inhibitor) plus beclabuvir (BCV; non-nucleoside NS5B inhibitor) is an approved regimen for hepatitis C virus (HCV) genotype (GT)-1 treatment in Japan. A comprehensive analysis of pre-treatment and treatment-emergent HCV resistance to this regimen ± ribavirin (RBV) was performed. METHODS: Data were pooled from five phase 2/3 studies of DCV+ASV+BCV±RBV given for 12 weeks to GT-1a- or GT-1b-infected patients...
June 8, 2017: Antiviral Therapy
https://www.readbyqxmd.com/read/28504241/antiviral-drug-resistance-and-hepatitis-b-a-continuing-public-health-problem
#9
Margaret Littlejohn
No abstract text is available yet for this article.
May 15, 2017: Antiviral Therapy
https://www.readbyqxmd.com/read/28497768/antibacterial-effects-of-antiretrovirals-potential-implications-for-microbiome-studies-in-hiv
#10
Mohaned Shilaih, Daniel C Angst, Alex Marzel, Sebastian Bonhoeffer, Huldrych F Günthard, Roger D Kouyos
BACKGROUND: Despite being used by more than 18 million people our understanding of the extent of effects of antiretrovirals on the human body and other organisms remains incomplete. In addition, the direct effect of antiretrovirals on the gut microbiota of HIV infected individuals has been largely overlooked in microbiome studies concerned with HIV infected individuals. METHODS: Here we tested 25 antiretrovirals on Bacillus subtilis and Escherichia coli using a broth microdilution assay to assess whether these drugs have an antibacterial effect...
May 12, 2017: Antiviral Therapy
https://www.readbyqxmd.com/read/28471350/antiviral-therapy-reduces-risk-of-haemorrhagic-stroke-in-patients-with-hcv-infection-a-nationwide-cohort-study
#11
Ming-Shyan Lin, Chang-Min Chung, Wey-Yil Lin, Kuo-Liang Wei, Jui Wang, Ying-Ying Lee, Jing-Hong Hu, Tao-Hsin Tung, Yu-Sheng Lin
BACKGROUND: The tendency for haemorrhagic stroke in patients with chronic hepatitis C virus (HCV) infection has emerged recently but the finding may be confounded by comorbidities. Proving the causality between HCV infection and haemorrhagic stroke is mandatory. Our study was designed to investigate the incidence of intracranial haemorrhage in HCV-infected patients with and without treatment. METHODS: In the 11-year and population-based retrospective study, we acquired data from the Taiwan National Health Insurance Research Database...
May 4, 2017: Antiviral Therapy
https://www.readbyqxmd.com/read/28447585/metabolic-profiles-of-individuals-switched-to-second-line-antiretroviral-therapy-after-failing-standard-first-line-therapy-for-treatment-of-hiv-1-infection-in-a-randomized-controlled-trial
#12
Amanda H Yao, Cecilia L Moore, Poh Lian Lim, Jean-Michel Molina, Juan Sierra Madero, Stephen Kerr, Paddy Wg Mallon, Sean Emery, David A Cooper, Mark A Boyd
BACKGROUND: To investigate metabolic changes associated with second-line antiretroviral therapy (ART) following virological failure of first-line ART. METHODS: SECOND-LINE was an open-label randomized controlled trial. Participants were randomized 1:1 to receive ritonavir-boosted lopinavir (LPV/r) with 2-3 nucleoside/nucleotide reverse transcriptase inhibitors (N(t)RTI-group) or raltegravir (RAL-group) Two hundred and ten participants had a dual energy X-ray absorptiometry (DXA)-scan at baseline, week 48 and 96...
April 27, 2017: Antiviral Therapy
https://www.readbyqxmd.com/read/28440785/impacts-of-hbv-rth55r-polymerase-substitution-on-viral-replication-and-rtm204i-v-resistance-to-nucleoside-nucleotide-antiviral-drugs
#13
Kuan-Hui Xiang, Cheng-Yu Zhao, Shuai Wang, Yao Li, Ming-Ze Su, Qiang-Yi Wang, Xi-Zhan Xu, Juan Deng, Hui Zhuang, Tong Li
BACKGROUND: High genetic variability at reverse transcriptase (RT) region of hepatitis B virus (HBV) could confer resistance to nucleos(t)ide analogues (NUCs). The aim of this study was to identify new RT amino acid (AA) substitutions related to NUCs resistance. METHODS: HBV RT sequences of genotype C from 501 chronic hepatitis B (CHB) patients were analyzed to identify potential RT substitutions related to NUCs resistance. In vitro studies without and with NUCs were performed in HepG2 cell line transfected by clones with RT harboring wild-type or substituted AA(s) of interest...
April 25, 2017: Antiviral Therapy
https://www.readbyqxmd.com/read/28436380/tenofovir-disoproxil-fumarate-monotherapy-is-superior-to-entecavir-adefovir-combination-therapy-in-patients-with-suboptimal-response-to-lamivudine-adefovir-therapy-for-nucleoside-resistant-hbv-a-96-week-prospective-multicenter-trial
#14
Sae Hwan Lee, Gab Jin Cheon, Hong Soo Kim, Sang Gyune Kim, Young Seok Kim, Soung Won Jeong, Jae Young Jang, Boo Sung Kim, Baek Gyu Jun, Young Don Kim, Dae Won Jun, Joo Hyun Sohn, Tae Yeob Kim, Byung Seok Lee
BACKGROUND: A complete virologic response is closely related to the long-term outcome of patients with chronic hepatitis B and prevention of emerging hepatitis B virus (HBV) mutations. We aimed to evaluate the efficacy of tenofovir disoproxil fumarate (TDF) monotherapy compared to entecavir-adefovir dipivoxil (ETV-ADV) combination therapy in patients with suboptimal responses to long-term lamivudine-adefovir dipivoxil (LAM-ADV) therapy for nucleoside analogue-resistant chronic hepatitis B...
April 24, 2017: Antiviral Therapy
https://www.readbyqxmd.com/read/28422043/real-world-efficacy-and-safety-of-ritonavir-boosted-paritaprevir-ombitasvir-dasabuvir-%C3%A2-ribavirin-for-hepatitis-c-genotype-1-final-results-of-the-rev1tal-study
#15
John Lubel, Simone Strasser, Katherine A Stuart, Gregory Dore, Alexander Thompson, Stephen Pianko, Steven Bollipo, Joanne L Mitchell, Vincenzo Fragomeli, Tracey Jones, Sarah Chivers, Paul Gow, David Iser, Miriam Levy, Edmund Tse, Alessia Gazzola, Wendy Cheng, Saroj Nazareth, Sam Galhenage, Amanda Wade, Martin Weltman, Alan Wigg, Gerry MacQuillan, Joe Sasadeusz, Jacob George, Amany Zekry, Stuart K Roberts
BACKGROUND: Limited data exist on the outcomes of ritonavir-boosted paritaprevir with ombitasvir and dasabuvir (PrOD) ± ribavirin in a real-world setting. The aim of this study was to compare the efficacy and safety of PrOD-based therapy in hepatitis C genotype 1 patients with and without cirrhosis, and to explore pre-treatment factors predictive of sustained viral response (SVR) and serious adverse events (SAEs) on treatment. METHODS: 451 patients with hepatitis C genotype 1 treated in 20 centres across Australia were included...
April 19, 2017: Antiviral Therapy
https://www.readbyqxmd.com/read/28406093/antiviral-activity-of-nobiletin-against-chikungunya-virus-in-vitro
#16
Shih-Chao Lin, Mei-Chun Chen, Shiming Li, Chi-Chen Lin, Tony T Wang
BACKGROUND: Chikungunya virus (CHIKV), a highly contagious re-emerging virus, is transmitted by infected mosquitoes. CHIKV is prevalent in tropical countries and is continuing to creep farther north into temperate areas. CHIKV is responsible for induction of Chikungunya Fever (CF) and severe joint stiffness with the capability of developing into bilateral and systemic arthralgia or even encephalitis. Despite the high morbidity rate, no approved antiviral drug is available. Therefore, an anti-CHIKV therapy is necessary to control this disease...
April 13, 2017: Antiviral Therapy
https://www.readbyqxmd.com/read/28401876/dolutegravir-abacavir-lamivudine-versus-current-art-in-virally-suppressed-patients-striiving-a-48-week-randomized-non-inferiority-open-label-phase-iiib-study
#17
Benoît Trottier, Jordan E Lake, Ken Logue, Cynthia Brinson, Lizette Santiago, Clare Brennan, Justin A Koteff, Brian Wynne, Judy Hopking, Catherine Granier, Michael Aboud
BACKGROUND: Simplified dosing regimens are important for patients who face challenges in adhering to HIV-1 therapy. We investigated the safety and virological efficacy of switching to once-daily abacavir/dolutegravir/lamivudine (ABC/DTG/3TC). METHODS: The STRIIVING study was a randomized, open-label, Phase IIIb study in adults with HIV-1 RNA <50 copies/ml on antiretroviral therapy (ART) at enrolment (ClinicalTrials.gov identifier, NCT02105987). Subjects were randomly assigned to switch to ABC/DTG/3TC once daily for 48 weeks (early-switch group) or continue current ART for 24 weeks and then switch to ABC/DTG/3TC (late-switch group)...
April 12, 2017: Antiviral Therapy
https://www.readbyqxmd.com/read/28367828/zidovudine-continuous-infusion-in-an-hiv-infected-pregnant-woman-with-a-phobia-of-swallowing-pills
#18
Matthijs van Luin, Gerjanne Ter Beest, Lia E Wijnberger, Caroline Ma Swanink, David M Burger, Jet H Gisolf
The authors report the difficulties of preventing mother to child transmission in a pregnant HIV-infected woman with a phobia of swallowing pills. After multiple attempts and just as many failures, the authors ended up with cART consisting of small tablets of nevirapine, lamivudine and a continuous intravenous infusion of zidovudine given via an elastomeric pump at home. This case demonstrates the difficulties that HIV-physicians can encounter in pregnant women who have difficulties in swallowing tablets. In exceptional circumstances, continuous infusion of zidovudine may be an option, even in an outpatient setting...
April 3, 2017: Antiviral Therapy
https://www.readbyqxmd.com/read/28362269/daclatasvir-plasma-concentration-assessment-in-hiv-hcv-coinfected-real-life-patients
#19
LETTER
Audrey Taton, Philippe Colson, Catherine Dhiver, Jean-Marie Ruiz, Sylvie Bregigeon, Christelle Tomei, Emmanuelle Ressiot, Amélie Menard, Isabelle Poizot-Martin, Isabelle Ravaux, Bruno Lacarelle, Caroline Solas
No abstract text is available yet for this article.
March 31, 2017: Antiviral Therapy
https://www.readbyqxmd.com/read/28362268/progressive-multifocal-leukoencephalopathy-due-to-john-cunningham-jc-virus-following-allogeneic-hematopoietic-cell-transplantation
#20
Wilson Lam, Zeyad Al-Shaibani, Deepali Kumar, Auro Viswabandya, Santhosh Thyagu, Fotios V Michelis, Jeffrey H Lipton, Hans A Messner, Uday Deotare
Progressive multifocal leukoencephalopathy (PML) is an uncommon infectious complication post allogeneic stem cell transplant (allo-SCT). We present a case report of a patient developing this complication with a review of the current literature. It also describes the first use of artesunate in a clinical case of PML with no beneficial effect.
March 31, 2017: Antiviral Therapy
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