keyword
MENU ▼
Read by QxMD icon Read
search

abacavir

keyword
https://www.readbyqxmd.com/read/28192529/first-line-antiretroviral-drug-discontinuations-in-children
#1
Melony Fortuin-de Smidt, Reneé de Waal, Karen Cohen, Karl-Günter Technau, Kathryn Stinson, Gary Maartens, Andrew Boulle, Ehimario U Igumbor, Mary-Ann Davies
INTRODUCTION: There are a limited number of paediatric antiretroviral drug options. Characterising the long term safety and durability of different antiretrovirals in children is important to optimise management of HIV infected children and to determine the estimated need for alternative drugs in paediatric regimens. We describe first-line antiretroviral therapy (ART) durability and reasons for discontinuations in children at two South African ART programmes, where lopinavir/ritonavir has been recommended for children <3 years old since 2004, and abacavir replaced stavudine as the preferred nucleoside reverse transcriptase inhibitor in 2010...
2017: PloS One
https://www.readbyqxmd.com/read/28182783/correction-abacavir-lamivudine-plus-rilpivirine-is-an-effective-and-safe-strategy-for-hiv-1-suppressed-patients-48-week-results-of-the-simriki-retrospective-study
#2
Jesús Troya, Pablo Ryan, Esteban Ribera, Daniel Podzamczer, Victor Hontañón, Jose Alberto Terrón, Vicente Boix, Santiago Moreno, Pilar Barrufet, Manuel Castaño, Ana Carrero, María José Galindo, Ignacio Suárez-Lozano, Hernando Knobel, Miguel Raffo, Javier Solís, María Yllescas, Herminia Esteban, Juan González-García, Juan Berenguer, Arkaitz Imaz
[This corrects the article DOI: 10.1371/journal.pone.0164455.].
2017: PloS One
https://www.readbyqxmd.com/read/28162244/pharmacogenetics-of-hypersensitivity-drug-reactions
#3
Simone Negrini, Laurent Becquemont
Adverse drug reactions are a significant cause of morbidity and mortality and represent a major burden on the healthcare system. Some of those reactions are immunologically mediated (hypersensitivity reactions) and can be clinically subdivided into two categories: immediate reactions (IgE-related) and delayed reactions (T-cell-mediated). Delayed hypersensitivity reactions include both systemic syndromes and organ-specific toxicities and can be triggered by a wide range of chemically diverse drugs. Recent studies have demonstrated a strong genetic association between human leukocyte antigen alleles and susceptibility to delayed drug hypersensitivity...
January 3, 2017: Thérapie
https://www.readbyqxmd.com/read/28143756/real-world-persistence-with-antiretroviral-therapy-for-hiv-in-the-united-kingdom-a-multicentre-retrospective-cohort-study
#4
Joseph M Lewis, Colette Smith, Adele Torkington, Craig Davies, Shazaad Ahmad, Andrew Tomkins, Jonathan Shaw, Margaret Kingston, Ghadeer Muqbill, Philip Hay, Larissa Mulka, Deborah Williams, Laura Waters, Nataliya Brima, Neal Marshall, Margaret Johnson, Mas Chaponda, Mark Nelson
OBJECTIVES: Persistence with an antiretroviral therapy (ART) regimen for HIV can be defined as the length of time a patient remains on therapy before stopping or switching. We aimed to describe ART persistence in treatment naïve patients starting therapy in the United Kingdom, and to describe differential persistence by treatment regimen. METHODS: We performed a retrospective cohort study at eight UK centres of ART-naïve adults commencing ART between 2012 and 2015...
January 29, 2017: Journal of Infection
https://www.readbyqxmd.com/read/28129253/hiv-drug-resistance-mutations-in-non-b-subtypes-after-prolonged-virological-failure-on-nnrti-based-first-line-regimens-in-sub-saharan-africa
#5
Cissy Kityo, Jennifer Thompson, Immaculate Nankya, Anne Hoppe, Emmanuel Ndashimye, Colin Warambwa, Ivan Mambule, Joep J van Oosterhout, Kara Wools-Kaloustian, Silvia Bertagnolio, Philippa J Easterbrook, Peter Mugyenyi, A Sarah Walker, Nicholas Paton
OBJECTIVE: To determine drug resistance mutation (DRM) patterns in a large cohort of patients failing non-nucleoside-reverse-transcriptase-inhibitor (NNRTI)-based first-line antiretroviral therapy (ART) regimens in programmes without routine viral load (VL) monitoring and to examine inter-subtype differences in DRMs. DESIGN: Sequences from 787 adults/adolescents who failed an NNRTI-based first-line regimen in 13 clinics in Uganda, Kenya, Zimbabwe, Malawi were analysed...
January 25, 2017: Journal of Acquired Immune Deficiency Syndromes: JAIDS
https://www.readbyqxmd.com/read/28124959/-prevalence-of-human-leukocyte-antigen-hla-b-57-01-in-hiv-infected-patients
#6
Aydın Deveci, Ahmet Yılmaz Çoban, Belma Durupınar
Deaths related with human immunodeficiency virus (HIV) infections have been decreased by the introduction of combined anti-retroviral therapy (ART) into the clinical practice. Combined ART usually consists of two nucleoside/nucleotide analogs reverse transcriptase inhibitors (NRTI) that is called backbone and a third drug that belongs to either non-nucleoside/nucleotide reverse transcriptase inhibitors (NNRTI), protease inhibitors (PI), integrase strand transfer inhibitors (INSTI) or entry inhibitors. During abacavir therapy which is a member of NRTI, hypersensitivity reactions can occur approximately 4-9% of the patients that lead difficulties for the management of HIV infections...
October 2016: Mikrobiyoloji Bülteni
https://www.readbyqxmd.com/read/28079946/enantioselective-and-regiodivergent-addition-of-purines-to-terminal-allenes-synthesis-of-abacavir
#7
Niels Thieme, Bernhard Breit
The rhodium-catalyzed atom-economic asymmetric N-selective intermolecular addition of purine derivatives to terminal allenes is reported. Branched allylic purines were obtained in high yields, regioselectivity and outstanding enantioselectivity utilizing a Rh/Josiphos catalyst. Conversely, linear selective allylation of purines could be realized in good to excellent regio- and E/Z-selectivity with a Pd/dppf catalyst system. Furthermore, the new methodology was applied to a straightforward asymmetric synthesis of carbocyclic nucleoside abacavir...
January 12, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28067719/insulin-resistance-and-markers-of-inflammation-in-hiv-infected-ugandan-children-in-the-chapas-3-trial
#8
Sahera Dirajlal-Fargo, Victor Musiime, Adrian Cook, Grace Mirembe, Julia Kenny, Ying Jiang, Sara Debanne, Nigel Klein, Grace A Mccomsey
BACKGROUND: Few studies have investigated metabolic complications in HIV-infected African children and their relation with inflammation. METHODS: We compared baseline and changes in insulin resistance (HOMA-IR) and in markers of inflammation over 48 weeks, in a subset of antiretroviral therapy (ART) naïve Ugandan children from the CHAPAS-3 trial randomized to zidovudine (AZT), stavudine (D4T) or abacavir (ABC) based regimens. Non-parametric methods were used to explore between and within group differences and multivariable analyses to assess associations of HOMA-IR...
January 6, 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/28065890/impact-of-obesity-on-antiretroviral-pharmacokinetics-and-immuno-virological-response-in-hiv-infected-patients-a-case-control-study
#9
Vincent Madelain, Minh P Le, Karen Champenois, Charlotte Charpentier, Roland Landman, Veronique Joly, Patrick Yeni, Diane Descamps, Yazdan Yazdanpanah, Gilles Peytavin
BACKGROUND: Obesity has high prevalence among HIV-infected patients. Increased adipose tissue mass affects the pharmacokinetics of numerous drugs, but few data are available for antiretroviral drugs. OBJECTIVES: In this study we aimed to explore the pharmacokinetics of antiretroviral drugs and the immuno-virological response in obese patients with HIV infection. PATIENTS AND METHODS: We examined data from 2009 to 2012 in our hospital's database for HIV-1-infected patients who received an antiretroviral drug (abacavir, emtricitabine, lamivudine, tenofovir, efavirenz, etravirine, nevirapine, atazanavir/ritonavir, darunavir/ritonavir, lopinavir/ritonavir or raltegravir)...
January 8, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28061820/associations-of-statins-and-antiretroviral-drugs-with-the-onset-of-type-2-diabetes-among-hiv-1-infected-patients
#10
Vincenzo Spagnuolo, Laura Galli, Andrea Poli, Stefania Salpietro, Nicola Gianotti, Piermarco Piatti, Francesca Cossarini, Concetta Vinci, Elisabetta Carini, Adriano Lazzarin, Antonella Castagna
BACKGROUND: Statin use is associated with a modest increase in the incidence of type 2 diabetes mellitus (DM) among the general population. However, HIV-infected patients have a higher risk of developing DM, and it is unclear whether statins have a diabetogenic effect in these patients. Therefore, we investigated the associations of statin use and exposure to antiretroviral drugs with type 2 DM onset in a cohort of HIV-infected patients. METHODS: This retrospective, controlled, cohort study identified HIV-1-infected patients who did not have DM and were not receiving statins at their antiretroviral treatment (ART) initiation...
January 7, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28060017/determinants-of-virological-outcome-and-adverse-events-in-african-children-treated-with-paediatric-nevirapine-fixed-dose-combination-tablets
#11
Andrzej Bienczak, Paolo Denti, Adrian Cook, Lubbe Wiesner, Veronica Mulenga, Cissy Kityo, Addy Kekitiinwa, Diana M Gibb, David Burger, A Sarah Walker, Helen Mcilleron
BACKGROUND: Nevirapine is the only non-nucleoside reverse transcriptase inhibitor currently available as a paediatric fixed-dose combination tablet and is widely used in African children. Nonetheless, the number of investigations into pharmacokinetic determinants of virological suppression in African children is limited and the predictive power of the current therapeutic range was never evaluated in this population, thereby limiting treatment optimisation. METHODS: We analysed data from 322 African children (aged 0...
January 4, 2017: AIDS
https://www.readbyqxmd.com/read/28057759/potent-nlrp3-inflammasome-activation-by-the-hiv-reverse-transcriptase-inhibitor-abacavir
#12
Atiye Toksoy, Helga Sennefelder, Christian Adam, Sonja Hofmann, Axel Trautmann, Matthias Goebeler, Marc Schmidt
There is experimental and clinical evidence that some exanthematous allergic drug hypersensitivity reactions are mediated by drug-specific T cells. We hypothesized that the capacity of certain drugs to directly stimulate the innate immune system may contribute to generate drug-specific T cells. Here we analyzed whether abacavir, an HIV-1 reverse transcriptase inhibitor often inducing severe delayed-type drug hypersensitivity, can trigger innate immune activation that may contribute to its allergic potential...
January 5, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28035758/genotypic-tropism-testing-of-proviral-dna-to-guide-maraviroc-initiation-in-aviraemic-subjects-48-week-analysis-of-results-from-the-protest-study
#13
E Poveda, J Hernández-Quero, M J Pérez-Elías, M A Ribas, O J Martínez-Madrid, J Flores, J Navarro, F Gutiérrez, M García-Deltoro, A Imaz, A Ocampo, A Artero, F Blanco, E Bernal, J Pasquau, C Mínguez-Gallego, N Pérez, A Aiestaran, F García, R Paredes
OBJECTIVES: Maraviroc (MVC) is a suitable drug for aviraemic subjects on antiretroviral treatment (ART) developing toxicity. Its prescription requires prior tropism testing. It is unknown if proviral DNA genotypic tropism testing is reliable for guiding MVC initiation in aviraemic subjects, so this study was carried out to address this issue. METHODS: PROTEST was a phase 4, prospective, single-arm clinical trial carried out in 24 HIV care centres in Spain. MVC-naïve HIV-1-infected patients with HIV-1 RNA < 50 copies/mL on stable ART during the previous 6 months who required an ART change because of toxicity and who had R5 HIV, as determined by proviral DNA genotypic tropism testing, initiated MVC with two nucleoside reverse transcriptase inhibitors (NRTIs) and were followed for 48 weeks...
December 30, 2016: HIV Medicine
https://www.readbyqxmd.com/read/28019192/lipid-lowering-effect-and-changes-in-estimated-cardiovascular-risk-after-switching-to-a-tenofovir-containing-regimen-for-the-treatment-of-hiv-infected-patients
#14
Roberta Gagliardini, Massimiliano Fabbiani, Manuela Colafigli, Alessandro D'Avino, Annalisa Mondi, Alberto Borghetti, Silvia Lamonica, Roberto Cauda, Andrea De Luca, Simona Di Giambenedetto
Tenofovir could have a direct lipid-lowering effect. The aim of our retrospective study was to investigate changes in cardiovascular risk after switching from a tenofovir-sparing to a tenofovir-containing backbone. Lipid parameters and cardiovascular risk [calculated using 10-years Framingham Risk Score (FRS) and 5-years DAD Risk Score (DRS)] were analysed at baseline and after three months. 273 patients were enrolled. After switching, significant decreases in total cholesterol (TC) (-8.2mg/dl, p < 0.001), LDL (-8...
December 26, 2016: Journal of Chemotherapy
https://www.readbyqxmd.com/read/28017537/human-leukocyte-antigen-and-idiosyncratic-adverse-drug-reactions
#15
REVIEW
Toru Usui, Dean J Naisbitt
A clinical association between a specific human leukocyte antigen (HLA) allele and idiosyncratic adverse drug reactions (IADRs) is a strong indication that IADRs are mediated by the adaptive immune system. For example, it is well-established that HLA-B*15:02 and HLA-B*57:01 are associated with carbamazepine-induced Stevens-Johnson syndrome (SJS)/toxic epidermal necrolysis (TEN) and abacavir-induced hypersensitivity/flucloxacillin-induced liver injury, respectively. Drug-specific T-cells whose response is restricted by specific HLA risk alleles have been detected from IADR patients, also suggesting an adaptive immune pathogenesis...
November 18, 2016: Drug Metabolism and Pharmacokinetics
https://www.readbyqxmd.com/read/28008867/dolutegravir-plasma-concentrations-according-to-companion-antiretroviral-drug-unwanted-drug-interaction-or-desirable-boosting-effect
#16
Dario Cattaneo, Davide Minisci, Valeria Cozzi, Agostino Riva, Paola Meraviglia, Emilio Clementi, Massimo Galli, Cristina Gervasoni
BACKGROUND: Studies in healthy volunteers have shown that the recently approved HIV integrase inhibitor dolutegravir has limited drug-to-drug interaction profile. Here we carried out a pharmacokinetic survey in HIV-infected patients given dolutegravir as part of their antiretroviral therapy. METHODS: Dolutegravir plasma trough concentrations were measured in 78 HIV infected patients given the drug in combination with a protease inhibitor, a non nucleoside reverse transcriptase inhibitor or abacavir/lamivudine...
December 23, 2016: Antiviral Therapy
https://www.readbyqxmd.com/read/27999707/novel-concepts-for-drug-hypersensitivity-based-on-the-use-of-long-time-scale-molecular-dynamic-simulation
#17
Takahiro Murai, Norihito Kawashita, Yu-Shi Tian, Tatsuya Takagi
The discovery that several drug hypersensitivity reactions (DHRs) are associated with specific human leukocyte antigen (HLA) alleles has attracted increasing research interest. However, the underlying mechanisms of these HLA-induced DHRs remain unclear, especially for drug-induced immediate activation of T-cell clones (TCCs). Recently, a novel hypothesis involving partial detachment between self-peptide(s) and the HLA molecule (altered peptide-HLA (pHLA) model) has been proposed to explain these phenomena. In order to clarify this hypothesis, we performed long-timescale molecular dynamics (MD) simulations...
2016: Journal of Pharmaceutics
https://www.readbyqxmd.com/read/27999056/switching-from-a-ritonavir-boosted-pi-to-dolutegravir-as-an-alternative-strategy-in-virologically-suppressed-hiv-infected-individuals
#18
Eugènia Negredo, Vicente Estrada, Pere Domingo, Maria Del Mar Gutiérrez, Gracia M Mateo, Jordi Puig, Anna Bonjoch, Arelly Ornelas, Patricia Echeverría, Carla Estany, Jessica Toro, Bonaventura Clotet
BACKGROUND: Switching from PIs to dolutegravir in virologically suppressed HIV-infected individuals has not been assessed. OBJECTIVES: The principal aim was to assess the evolution of bone mineral density (BMD) when switching from a ritonavir-boosted PI to dolutegravir in HIV-infected patients with osteopenia or osteoporosis. The secondary objective was to assess the antiviral efficacy and safety of the switch therapy. METHODS: This randomized, multicentre study assessed changes in BMD, bone turnover markers, and antiviral efficacy and safety in 73 virologically suppressed patients with osteopenia/osteoporosis taking a ritonavir-boosted PI plus abacavir/lamivudine who were randomized to switch from PI to dolutegravir (DOLU group, n = 37) or continue with a PI (PI group, n = 36)...
December 20, 2016: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/27912079/a-humanized-mouse-model-for-hiv-2-infection-and-efficacy-testing-of-a-single-pill-triple-drug-combination-anti-retroviral-therapy
#19
Shuang Hu, Charles Preston Neff, Dipu Mohan Kumar, Yuichiro Habu, Sarah R Akkina, Takahiro Seki, Ramesh Akkina
While HIV-2 is a causative agent for AIDS in addition to the better studied HIV-1, there is currently no suitable animal model for experimental studies for HIV-2 infection and evaluating promising drugs in vivo. Here we evaluated humanized mice for their susceptibility to HIV-2 infection and tested a single-pill three drug formulation of anti-retrovirals (NRTIs abacavir and lamivudine, integrase inhibitor dolutegravir) (trade name, Triumeq(R)). Our results showed that hu-mice are susceptible to HIV-2 infection showing persistent viremia and CD4 T cell loss, key hallmarks of AIDS pathogenesis...
January 15, 2017: Virology
https://www.readbyqxmd.com/read/27904105/evaluation-of-the-lipid-concentrations-after-switching-from-antiretroviral-drug-tenofovir-disoproxil-fumarate-emtricitabine-to-abacavir-sulfate-lamivudine-in-virologically-suppressed-human-immunodeficiency-virus-infected-patients
#20
Hirotaka Arae, Masao Tateyama, Hideta Nakamura, Daisuke Tasato, Kaoru Kami, Kyoko Miyagi, Saori Maeda, Hitoshi Uehara, Makiko Moromi, Katsunori Nakamura, Jiro Fujita
Objective Recently, tenofovir disoproxil fumatate (TDF)-related side effects, such as renal nephrotoxicity and reduction of bone mineral density, have been reported. Consequently, increased switching from fixed-dose tablet TDF and emtricitabine (TDF/FTC) to abacavir and lamivudine (ABC/3TC) has occurred. Interestingly, while TDF has a lipid-lowering property, one of the ABC-related side effects is hyperlipidemia. Therefore, such switching could cause lipid elevation. To evaluate the change in lipid levels associated with switching from TDF/FTC to ABC/3TC in virologically-suppressed human immunodeficiency virus (HIV)-infected patients...
2016: Internal Medicine
keyword
keyword
114250
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"