402 results on '"Calmy A."'
Search Results
2. VIH : zoom sur les traitements injectables à longue durée d’action
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Olivier Nawej Tshikung, Olivier Segeral, Matthias Cavassini, and Alexandra Calmy
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General Medicine - Published
- 2023
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3. Variole du singe : une nouvelle menace infectieuse émergente ?
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Olivier Segeral, Stefano Musumeci, Laurent Kaiser, and Alexandra Calmy
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General Medicine - Published
- 2023
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4. Changes in body mass index and clinical outcomes after initiation of contemporary antiretroviral regimens
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Wendy P. Bannister, T. Christopher Mast, Stéphane de Wit, Jan Gerstoft, Lothar Wiese, Ana Milinkovic, Vesna Hadziosmanovic, Amanda Clarke, Line D. Rasmussen, Karine Lacombe, Philipp Schommers, Thérèse Staub, Alexandra Zagalo, Joseba J. Portu, Luba Tau, Alexandra Calmy, Matthias Cavassini, Martin Gisinger, Elena Borodulina, Amanda Mocroft, Joanne Reekie, and Lars Peters
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Male ,Adult ,Adolescent ,Immunology ,HIV Infections ,Middle Aged ,Overweight ,Body Mass Index ,Infectious Diseases ,Anti-Retroviral Agents ,Cardiovascular Diseases ,Risk Factors ,Neoplasms ,Diabetes Mellitus ,Humans ,Immunology and Allergy ,Female ,Obesity - Abstract
Weight gain is becoming increasingly prevalent amongst people with HIV (PWH) receiving contemporary antiretroviral treatment. We investigated BMI changes and clinical impact in a large prospective observational study.PWH aged ≥18 years were included who started a new antiretroviral (baseline) during 2010-2019 with baseline and ≥1 follow-up BMI assessment available. Rates of clinical outcomes (cardiovascular disease [CVD], malignancies, diabetes mellitus [DM] and all-cause mortality) were analysed using Poisson regression to assess effect of time-updated BMI changes (gt;1 kg/m 2 decrease, ±1 kg/m 2 stable,gt;1 kg/m 2 increase), lagged by 1-year to reduce reverse causality. Analyses were adjusted for baseline BMI plus key confounders including antiretroviral exposure.6721 PWH were included; 72.3% were male, median age 48 years (interquartile range [IQR] 40-55). At baseline, 8.4% were antiretroviral-naive, and 5.0% were underweight, 59.7% healthy weight, 27.5% overweight, and 7.8% were living with obesity. There was an 8.2% increase in proportion of overweight and 4.8% in obesity over the study period (median follow-up 4.4 years [IQR 2.6-6.7]).100 CVDs, 149 malignancies, 144 DMs, and 257 deaths were observed with incidence rates 4.4, 6.8, 6.6, 10.6 per 1000 person-years of follow-up, respectively. Compared to stable BMI,gt;1 kg/m 2 increase was associated with increased risk of DM (adjusted incidence rate ratio [IRR]: 1.96, 95% confidence interval [CI]: 1.36-2.80) andgt;1 kg/m 2 decrease with increased risk of death (adjusted IRR: 2.33, 95% CI: 1.73-3.13). No significant associations were observed between BMI changes and CVD or malignancies.A BMI increase was associated with DM and a decrease associated with death.
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- 2022
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5. A Systematic Molecular Epidemiology Screen Reveals Numerous Human Immunodeficiency Virus (HIV) Type 1 Superinfections in the Swiss HIV Cohort Study
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Sandra E, Chaudron, Christine, Leemann, Katharina, Kusejko, Huyen, Nguyen, Nadine, Tschumi, Alex, Marzel, Michael, Huber, Jürg, Böni, Matthieu, Perreau, Thomas, Klimkait, Sabine, Yerly, Alban, Ramette, Hans H, Hirsch, Andri, Rauch, Alexandra, Calmy, Pietro, Vernazza, Enos, Bernasconi, Matthias, Cavassini, Karin J, Metzner, Roger D, Kouyos, Huldrych F, Günthard, and S, Yerly
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Molecular Epidemiology ,Vaccines ,viruses ,virus diseases ,HIV Infections ,biochemical phenomena, metabolism, and nutrition ,Cohort Studies ,Infectious Diseases ,Superinfection ,parasitic diseases ,HIV-1 ,Humans ,Immunology and Allergy ,Phylogeny ,Switzerland - Abstract
Background Studying human immunodeficiency virus type 1 (HIV-1) superinfection is important to understand virus transmission, disease progression, and vaccine design. But detection remains challenging, with low sampling frequencies and insufficient longitudinal samples. Methods Using the Swiss HIV Cohort Study (SHCS), we developed a molecular epidemiology screening for superinfections. A phylogeny built from 22 243 HIV-1 partial polymerase sequences was used to identify potential superinfections among 4575 SHCS participants with longitudinal sequences. A subset of potential superinfections was tested by near-full-length viral genome sequencing (NFVGS) of biobanked plasma samples. Results Based on phylogenetic and distance criteria, 325 potential HIV-1 superinfections were identified and categorized by their likelihood of being detected as superinfections due to sample misidentification. NFVGS was performed for 128 potential superinfections; of these, 52 were confirmed by NFVGS, 15 were not confirmed, and for 61 sampling did not allow confirming or rejecting superinfection because the sequenced samples did not include the relevant time points causing the superinfection signal in the original screen. Thus, NFVGS could support 52 of 67 adequately sampled potential superinfections. Conclusions This cohort-based molecular approach identified, to our knowledge, the largest population of confirmed superinfections, showing that, while rare with a prevalence of 1%–7%, superinfections are not negligible events.
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- 2022
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6. VIH/sida. VIH et Covid-19 : deux pandémies virales en interaction
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Olivier Nawej Tshikung and Alexandra Calmy
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General Medicine - Published
- 2022
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7. A Case of Mpox Reinfection
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Stefano Musumeci, Iris Najjar, Emmanuelle Boffi El Amari, Manuel Schibler, Frédérique Jacquerioz, Sabine Yerly, Adriana Renzoni, Alexandra Calmy, and Laurent Kaiser
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Microbiology (medical) ,Infectious Diseases - Abstract
A healthy young man first diagnosed with mpox in May 2022 presented again in November 2022 with anal proctitis and a positive polymerase chain reaction on a rectal swab for Monkeypox virus after a recent trip to Brazil, where he engaged in condomless sexual intercourse with multiple male partners.
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- 2023
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8. LiteRev, an Automation Tool to Support Literature Reviews: A Case Study on Acute and Early HIV Infection in Sub-Saharan Africa
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Erol Orel, Iza Ciglenecki, Amaury Thiabaud, Alexander Temerev, Alexandra Calmy, Olivia Keiser, and Aziza Merzouki
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BackgroundLiterature Reviews (LRs) identify, evaluate, and synthesise relevant papers to a particular research question to advance understanding and support decision making. However, LRs, especially traditional systematic reviews are slow, resource intensive, and are outdated quickly.ObjectiveUsing recent Natural Language Processing (NLP) and Unsupervised Machine Learning (UML) methods, this paper presents a tool named LiteRev that supports researchers in conducting LRs.MethodsBased on the user’s query, LiteRev can perform an automated search on different open-access databases and retrieve relevant metadata on the resulting papers. Papers (abstracts or full texts) are text processed and represented as a Term Frequency-Inverse Document Frequency (TF-IDF) matrix. Using dimensionality reduction (PaCMAP) and clustering (HDBSCAN) techniques, the corpus is divided into different topics described by a list of keywords. The user can select one or several topics of interest, enter additional keywords to refine their search, or provide key papers to the research question. Based on these inputs, LiteRev performs an iterative nearest neighbours search, and suggests a list of potentially interesting papers. The user can tag the relevant ones and trigger a new search until no additional paper is suggested for screening. To assess the performance of LiteRev, we ran it in parallel to a manual LR on the burden and care for acute and early HIV infection in sub-Saharan Africa. We assessed the performance of LiteRev using True and False Predictive Values, recall and Work Saved over Sampling.ResultsWe extracted, text processed and represented into a TF-IDF matrix 631 unique papers from PubMed. The topic modelling module identified 5 main topics and 16 topics (ranging from 13 to 98 papers) and extracted the 10 most important keywords for each. Then, based on 18 key papers, we were able to identify 2 topics of interest with 7 key papers in each of them. Finally, we ran the k-nearest neighbours module and LiteRev suggested first a list of 110 papers for screening, among which 45 papers were confirmed as relevant. From these 45 papers, LiteRev suggested 26 additional papers, out of which 8 were confirmed as relevant. At the end of the iterative process (4 iterations), 193 papers out of 613 papers in total (31.5% of the whole corpus) were suggested by LiteRev. After title/abstract screening, LiteRev identified 64 out of the 87 relevant papers (i.e., recall of 73.6%). After full text screening, LiteRev identified 42 out of the 48 relevant papers (i.e., recall of 87.5%, and Work Saved over Sampling of 56.0%).ConclusionsWe presented LiteRev, an automation tool that uses NLP and UML methods to streamline and accelerate LRs and to support researchers in getting quick and in-depth overviews on any topic of interest.
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- 2023
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9. Does menopause transition influence viral suppression and adherence in Women living with HIV?
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A, Hachfeld, A, Atkinson, P, Stute, A, Calmy, P E, Tarr, K E A, Darling, B, Babouee Flury, C, Polli, L, Sultan-Beyer, I A, Abela, and K, Aebi-Popp
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Increasing numbers of women living with HIV transition through menopause. It is unclear if this transition has an impact on treatment adherence, viral suppression, psychiatric comorbidities or drug use. We aimed at examining adherence and viral suppression during the perimenopausal period and explored the influence of psychiatric comorbidities and active injection drug use (IDU).Retrospective Swiss HIV Cohort Study analysis from 01/2010 to 12/2018.We explored peri- and postmenopausal trends of viral blips, low-level viremia, viral failure, adherence, psychiatric comorbidities and IDU using interrupted time series (ITS) models.Rates of depression and psychiatric care increased during perimenopause before decreasing afterwards. Negative treatment outcomes such as viral blips, low-level viremia, viral failure and low adherence steadily declined while transitioning through menopause - this was also true for subgroups of women with depression, psychiatric treatment and active IDU.Increased rates of depression and psychiatric care while transitioning through menopause do not result in lower rates of adherence or viral suppression in women living with HIV in Switzerland.
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- 2023
10. Burden and care for acute and early HIV infection in sub-Saharan Africa: a scoping review protocol
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Orel, Erol, Keiser, Olivia, Iza Ciglenecki, and Calmy, Alexandra
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Medicine and Health Sciences - Abstract
Unadressed acute and early HIV infection (AEHI) contributes to continuous HIV transmission despite global achievements in HIV control. In sub-Saharan Africa, diagnosis and care for AEHI is almost non-existent, and current testing guidelines provide no guidance. The aim of this scoping review is to summarize the evidence on burden and care provided for acute and early HIV infection in sub-Saharan Africa, to inform policy, practice and research in future.
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- 2023
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11. Comparison of five different risk scores to predict incident type 2 diabetes in the Swiss HIV cohort study
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Fanny Blondet, Vanessa Kraege, Matthias Cavassini, José Damas Fernandez, Peter Vollenweider, Gilles Wandeler, Matthias Hoffman, Alexandra Calmy, Marcel Stoeckle, Enos Bernasconi, Barbara Hasse, Pedro Marques-Vidal, and Marie Méan
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Infectious Diseases ,Immunology ,Immunology and Allergy ,610 Medizin und Gesundheit - Abstract
OBJECTIVE People living with HIV (PLWH) have a higher risk of type 2 diabetes (T2D) than HIV negative individuals. In the general population, diabetes risk scores are used to identify persons at risk of developing T2D, but little is known regarding their performance in PLWH. DESIGN Assessment of the capacity of five diabetes risk scores to predict T2D in PLWH. METHODS Prospective study including all Swiss HIV cohort study (SHCS) participants followed between 2009 and 2019. Five diabetes risk scores were assessed: FINDRISC versions 1 and 2, Balkau, Swiss Diabetes Association (SDA) and Kraege. RESULTS 3853 T2D-free PLWH (78.5% men, 39.9 ± 11.3 years) were included. After a median follow-up of 4.8 years (interquartile range 2.2-7.8), 62 participants (1,6%) developed T2D, corresponding to an incidence rate of 3.18 per 1,000 person-years (95% confidence interval: 2.47-4.08). Participants who developed T2D were older (48.7 ± 12.4 vs. 39.8 ± 11.2 years), more likely to be obese (22.6% vs. 7.4%), abdominally obese (9.7% vs. 1.5%), and to have a family history of diabetes (32.3% vs. 19.1%) than those without T2D. The AUC for incident T2D ranged between 0.72 (Kraege 16) and 0.81 (SDA, FINDRISC2 and Balkau). Sensitivity ranged between 3.2% (Balkau) and 67.7% (FINDRISC1) and specificity between 80.9% (FINDRISC1) and 98.3% (Balkau). Positive predictive values of all scores were below 20%, while negative predictive values were above 98%. CONCLUSION In conclusion, our study shows that the performance of conventional diabetes risk scores in PLWH is promising, especially for Balkau and FINDRISC2 which showed good discriminatory power. These scores may help identify patients at low risk of T2D in whom careful assessment of modifiable T2D risk factors can be spared.
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- 2023
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12. Triggers of change in sexual behavior among people with HIV: The Swiss U = U statement and Covid-19 compared
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Hamusonde, Kalongo, Nicca, Dunja, Günthard, Huldrych F, Stöckle, Marcel, Darling, Katharine Ea, Calmy, Alexandra, Bernasconi, Enos, Haerry, David, Schmid, Patrick, Kouyos, Roger D, Rauch, Andri, Salazar-Vizcaya, Luisa, Swiss HIV Cohort Study, and University of Zurich
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10028 Institute of Medical Virology ,10234 Clinic for Infectious Diseases ,570 Life sciences ,biology ,610 Medicine & health - Published
- 2023
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13. Association of a Polygenic Risk Score with Osteoporosis in People Living with HIV: The Swiss HIV Cohort Study
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Schwenke, Johannes M, Thorball, Christian W, Schöpf, Isabella C, Ryom, Lene, Hasse, Barbara, Lamy, Olivier, Calmy, Alexandra, Wandeler, Gilles, Marzolini, Catia, Kahlert, Christian R, Bernasconi, Enos, Kouyos, Roger, Günthard, Huldrych F, Ledergerber, Bruno, Fellay, Jacques, Burkhalter, Felix, and Tarr, Philip E
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610 Medicine & health - Abstract
BACKGROUND Bone mineral density (BMD) loss may be accelerated in people with HIV (PLWH). It is unknown whether an individual polygenic risk score (PRS) is associated with low BMD in PLWH. METHODS We included Swiss HIV Cohort Study participants of self-reported European descent, each with >2 per-protocol Dual X-ray Absorptiometry (DXA) measurements >2 years apart (2011-2020). We obtained uni-/multivariable odds ratios (OR) for DXA-defined osteoporosis based on traditional and HIV-related osteoporosis risk factors and a genome-wide PRS built from 9413 single nucleotide polymorphisms associated with low BMD in the general population. Controls were free from osteoporosis/osteopenia on all DXA measurements. RESULTS We included 438 participants (149 with osteoporosis, 289 controls; median age, 53 years, 82% male, 95% with suppressed HIV RNA). Participants with unfavorable osteoporosis-PRS (top vs. bottom PRS quintile) had univariable and multivariable-adjusted osteoporosis OR=4.76 (95% confidence interval [CI], 2.34-9.67) and 4.13 (1.86-9.18), respectively. For comparison, hepatitis C seropositivity, 5-year tenofovir disoproxil fumarate exposure, and parent history of hip fracture had univariable osteoporosis-OR=2.26 (1.37-3.74), 1.84 (1.40-2.43), and 1.54 (0.82-2.9), respectively. CONCLUSIONS In PLWH in Switzerland, osteoporosis was independently associated with a BMD-associated PRS, after adjustment for established osteoporosis risk factors including exposure to tenofovir DF.
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- 2023
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14. Impact of integrase inhibitors on cardiovascular disease events in people with HIV starting antiretroviral therapy
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Surial, Bernard, Chammartin, Frédérique, Damas, José, Calmy, Alexandra, Haerry, David, Stöckle, Marcel, Schmid, Patrick, Bernasconi, Enos, Fux, Christoph A, Tarr, Philip, Günthard, Huldrych F, Wandeler, Gilles, and Rauch, Andri
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610 Medicine & health - Abstract
BACKGROUND Integrase strand transfer inhibitors (INSTI) have been associated with an increased risk for cardiovascular disease (CVD) events. We investigated the impact of starting INSTI-based antiretroviral therapy (ART) on CVD events among treatment-naïve people with HIV (PWH) using a target trial framework, which reduces the potential for confounding and selection bias. METHODS We included Swiss HIV Cohort Study participants who were ART-naïve after 05/2008, when INSTI became available in Switzerland. Individuals were categorized according to their first ART regimen (INSTI vs. other ART) and were followed from ART start until the first of CVD event (myocardial infarction, stroke, or invasive cardiovascular procedure), loss to follow-up, death, or last cohort visit. We calculated hazard ratios and risk differences using pooled logistic regression models with inverse probability of treatment and censoring weights. RESULTS Of 5362 participants (median age 38 years, 21% women, 15% of African origin), 1837 (34.3%) started INSTI-based ART, and 3525 (65.7%) started other ART. Within 4.9 years (IQR 2.4-7.4), 116 CVD events occurred. Starting INSTI-based ART was not associated with an increase in CVD events (adjusted hazard ratio 0.80, 95% confidence interval [CI] 0.46-1.39). Adjusted risk differences between individuals who started INSTI and those who started other ART were -0.17% (95% CI -0.37-0.19) after one year, -0.61% (-1.54-0.22) after 5 years, and -0.71% (-2.16-0.94) after 8 years. CONCLUSIONS In this target trial emulation, we found no difference in short or longer term risk for CVD events between treatment-naïve PWH who started INSTI-based and those on other ART.
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- 2023
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15. Effect of SLCO1B1 c.521T>C polymorphism on the lipid response to statins in people living with HIV on a boosted protease inhibitor containing regimen
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Marzolini, Catia, Cavassini, Matthias, Braun, Dominique L, Hachfeld, Anna, Bernasconi, Enos, Calmy, Alexandra, Schmid, Patrick, Battegay, Manuel, and Elzi, Luigia
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610 Medicine & health - Abstract
AIM We previously observed that some individuals on HIV boosted protease inhibitor containing regimen do not achieve their lipid targets despite elevated statin concentrations. This study evaluated whether the common single polymorphism c.521T>C in SLCO1B1, associated with reduced statin uptake in the liver, could explain this observation. METHODS People living with HIV (PLWH) in the Swiss HIV Cohort Study were eligible if they were on a boosted protease inhibitor concomitantly with a statin for at least 6 months and if their SLCO1B1 genotype was available. Furthermore, their lipids had to be documented before and after the introduction of the statin. The statin efficacy was defined as % change in total-, LDL-, HDL-cholesterol and triglycerides levels after statin initiation compared to pre-treatment levels. Lipid response was adjusted for differences in potency and dose between statins. RESULTS 88 PWH were included, of whom 58, 28 and 2 carried the SLCO1B1 TT, TC and CC genotypes, respectively. The change in lipid levels after statin initiation tended to be lower in carriers of the polymorphism although the difference was not statistically significant (TT vs TC/CC: total-: -11.7% vs -4.8%; LDL-: -20.6% vs -7.4%; HDL-cholesterol: 1.6% vs 0; triglycerides: -11.5% vs -7.9%). In the multiple linear regression, change in total cholesterol was inversely correlated with the total cholesterol level pre-statin treatment (coefficient -6.60, 95%CI: -9.63 to -3.56, p
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- 2023
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16. Quantifying and predicting ongoing Human Immunodeficiency Virus Type 1 (HIV-1) transmission dynamics in Switzerland using a distance-based clustering approach
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Labarile, Marco, Loosli, Tom, Zeeb, Marius, Kusejko, Katharina, Huber, Michael, Hirsch, Hans H, Perreau, Matthieu, Ramette, Alban, Yerly, Sabine, Cavassini, Matthias, Battegay, Manuel, Rauch, Andri, Calmy, Alexandra, Notter, Julia, Bernasconi, Enos, Fux, Christoph, Günthard, Huldrych F, Pasin, Chloé, Kouyos, Roger D, Swiss HIV Cohort Study, and University of Zurich
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10028 Institute of Medical Virology ,10234 Clinic for Infectious Diseases ,570 Life sciences ,biology ,610 Medicine & health - Published
- 2023
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17. High burden of sexually transmitted infections and poor diagnostic performance of syndromic approaches within a decentralised HIV care setting in Eswatini
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Kerschberger B, Ntshalintshali N, Mafomisa M, Mabhena E, Daka M, Mukooza E, Dlamini S, Mavimbela M, Dube L, Matse S, Mabuza N, de Latour R, Karakozian H, Staderini N, Haile M, Calmy A, Toutous Trellu L, and Ciglenecki I
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INTRODUCTION Sexually transmitted infections (STI’s) are a public health threat. Syndromic approaches based on clinical symptoms have been suggested as having poor diagnostic performance, particularly in the type of settings where MSF is operational. We assessed the burden of STI’s and the diagnostic performance of a syndromic approach within an MSF-supported HIV/STI project in Eswatini. METHODS We conducted a cross-sectional study, enrolling adults accessing routine HIV testing and antiretroviral care services in six clinics in Shiselweni, from July 2022 to January 2023. HIV testing counselors performed HIV testing and nurses assessed patients for STI’s. Laboratory investigations included antibody-based rapid diagnostic tests (RDT’s) for Treponema pallidum (TP), hepatitis B (HBV) and hepatitis C (HBC). The molecular platform Xpert was used to test urine samples for Chlamydia trachomatis (CT), Neisseria gonorrhoea (NG), Trichomonas vaginalis (TV), Mycoplasma genitalium (MG), vaginal/anal swabs for human papillomavirus (HPV), and plasma for HIV viraemia to test for acute HIV infection (HIV). We calculated the prevalence of STI’s, and assessed diagnostic performance of a syndromic approach to diagnose male urethritis (MUS) and vaginal discharge (VDS) syndromes, versus laboratory-based testing. ETHICS This study was approved by the Eswatini Health and Human Research Review Board and by the MSF Ethics Review Board. RESULTS Of 1,041 study participants, 682 were women (65.5%), and the median age was 30 (interquartile range, IQR, 24-38) years. Overall, 280 (26.9%) were known HIV-positive and of 755 with unknown HIV status, 30 (4.0%) were newly diagnosed with HIV, of whom seven (23.3%) had AHI. 308 (29.6%) patients had at least one of the following three pathogens identified: NG 121 (11.6%); CT 155 (14.9%); TV 109 (10.5%). MG was detected in 33/330 participants (10.0%). In addition, 105 (10.1%) had antibodies against TP, 49 (4.7%) against HBV, and three (0.3%) against HCV. HPV prevalence was higher in tested women (104/196; 53.1%) versus men (5/27; 18.5%; p=0.001). Prevalence of NG/CT/TP was highest in newly-diagnosed HIV cases (48.2%) versus known HIV-positive cases (26.8%, p=0.019). Based on the syndromic approach, 188/634 (29.7%) had a VDS, and 97/334 (29.0%) a MUS. Diagnostic performance of the syndromic approach was better in men (MUS: sensitivity: 66.7%, specificity 87.5%; positive predictive value, PPV, 70.1%, negative predictive value, NPV, 85.7%), versus women (VDS: sensitivity 35.9%, specificity 72.9%; PPV 35.1%, NPV 73.5%). CONCLUSION A high burden of STI’s in Eswatini and poor diagnostic ability of the syndromic approach in this setting, calls for new approaches for STI care in MSF-supported sexual and reproductive health programmes in resource-poor settings. CONFLICTS OF INTEREST None declared
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- 2023
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18. Respiratory Disease Factors Link with Reduced SARS-CoV-2 Susceptibility in People with HIV
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Irene Abela, Anthony Hauser, Magdalena Schwarzmüller, Chloé Pasin, Katharina Kusejko, Selina Epp, Matthias Cavassini, Manuel Battegay, Andri Rauch, Alexandra Calmy, Julia Notter, Enos Bernasconi, Christoph A. Fux, Karoline Leuzinger, Matthieu Perreau, Alban Ramette, Jochen Gottschalk, Eméry Schindler, Alexander Wepf, Maddalena Marconato, Markus G. Manz, Beat M. Frey, Dominique Braun, Michael Huber, Huldrych F. Günthard, Alexandra Trkola, Roger Kouyos, and Swiss HIV Cohort Study
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- 2023
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19. Frequency matters: comparison of drug resistance mutation detection by Sanger and next-generation sequencing in HIV-1
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Balakrishna, Suraj, Loosli, Tom, Zaheri, Maryam, Frischknecht, Paul, Huber, Michael, Kusejko, Katharina, Yerly, Sabine, Leuzinger, Karoline, Perreau, Matthieu, Ramette, Alban, Wymant, Chris, Fraser, Christophe, Kellam, Paul, Gall, Astrid, Hirsch, Hans H, Stoeckle, Marcel, Rauch, Andri, Cavassini, Matthias, Bernasconi, Enos, Notter, Julia, Calmy, Alexandra, Günthard, Huldrych F, Metzner, Karin J, and Kouyos, Roger D
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Pharmacology ,Microbiology (medical) ,Infectious Diseases ,Pharmacology (medical) ,610 Medizin und Gesundheit ,570 Biowissenschaften ,Biologie - Abstract
BackgroundNext-generation sequencing (NGS) is gradually replacing Sanger sequencing (SS) as the primary method for HIV genotypic resistance testing. However, there are limited systematic data on comparability of these methods in a clinical setting for the presence of low-abundance drug resistance mutations (DRMs) and their dependency on the variant-calling thresholds.MethodsTo compare the HIV-DRMs detected by SS and NGS, we included participants enrolled in the Swiss HIV Cohort Study (SHCS) with SS and NGS sequences available with sample collection dates ≤7 days apart. We tested for the presence of HIV-DRMs and compared the agreement between SS and NGS at different variant-calling thresholds.ResultsWe included 594 pairs of SS and NGS from 527 SHCS participants. Males accounted for 80.5% of the participants, 76.3% were ART naive at sample collection and 78.1% of the sequences were subtype B. Overall, we observed a good agreement (Cohen’s kappa >0.80) for HIV-DRMs for variant-calling thresholds ≥5%. We observed an increase in low-abundance HIV-DRMs detected at lower thresholds [28/417 (6.7%) at 10%–25% to 293/812 (36.1%) at 1%–2% threshold]. However, such low-abundance HIV-DRMs were overrepresented in ART-naive participants and were in most cases not detected in previously sampled sequences suggesting high sequencing error for thresholds ConclusionsWe found high concordance between SS and NGS but also a substantial number of low-abundance HIV-DRMs detected only by NGS at lower variant-calling thresholds. Our findings suggest that a substantial fraction of the low-abundance HIV-DRMs detected at thresholds
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- 2023
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20. Understanding the decline of incident, active tuberculosis in people with HIV in Switzerland
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Zeeb, Marius, Tepekule, Burcu, Kusejko, Katharina, Reiber, Claudine, Kälin, Marisa, Bartl, Lena, Notter, Julia, Furrer, Hansjakob, Hoffmann, Matthias, Hirsch, Hans H, Calmy, Alexandra, Cavassini, Matthias, Labhardt, Niklaus D, Bernasconi, Enos, Braun, Dominique L, Günthard, Huldrych F, Kouyos, Roger D, and Nemeth, Johannes
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610 Medicine & health - Abstract
BACKGROUND People with human immunodeficiency virus type 1 (HIV) (PWH) are frequently coinfected with Mycobacterium tuberculosis (MTB) and at risk for progressing from asymptomatic latent TB infection (LTBI) to active tuberculosis (TB). LTBI testing and preventive treatment (TB specific prevention) are recommended, but its efficacy in low transmission settings is unclear. METHODS We included PWH enrolled from 1988 to 2022 in the Swiss HIV Cohort study (SHCS). The outcome, incident TB, was defined as TB ≥6 months after SHCS inclusion. We assessed its risk factors using a time-updated hazard regression, modeled the potential impact of modifiable factors on TB incidence, performed mediation analysis to assess underlying causes of time trends, and evaluated preventive measures. RESULTS In 21,528 PWH, LTBI prevalence declined from 15.1% in 2001 to 4.6% in 2021. Incident TB declined from 90.8 cases/1000 person-years in 1989 to 0.1 in 2021. A positive LTBI test showed a higher risk for incident TB (HR 9.8, 5.8-16.5) but only 10.5% of PWH with incident TB were tested positive. Preventive treatment reduced the risk in LTBI test positive PWH for active TB (relative risk reduction, 28.1%, absolute risk reduction 0.9%). On population level, the increase of CD4 T-cells and reduction of HIV viral load were the main driver of TB decrease. CONCLUSIONS TB specific prevention is effective in selected patient groups. On a population level, control of HIV-1 remains the most important factor for incident TB reduction. Accurate identification of PWH at highest risk for TB is an unmet clinical need.
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- 2023
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21. Incidence of dyslipidemia in people with HIV who are treated with integrase inhibitors versus other antiretroviral agents
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Byonanebye D. M., Polizzotto M. N., Begovac J., Grabmeier-Pfistershammer K., Abela I., Castagna A., de Wit S., Mussini C., Vehreschild J. J., d'Arminio Monforte A., Wit F. W. N. M., Pradier C., Chkhartishvili N., Sonnerborg A., Hoy J., Lundgren J., Neesgaard B., Bansi-Matharu L., Greenberg L., Llibre J. M., Vannappagari V., Gallant J., Necsoi C., Cichon P., Reiss P., Aho I., Tsertsvadze T., Mennozzi M., Rauch A., Muccini C., Law M., Mocroft A., Ryom L., Petoumenos K., Hillebregt M., Rose N., Zangerle R., Appoyer H., Delforge M., Wandeler G., Stephan C., Bucht M., Chokoshvili O., Rodano A., Tavelli A., Fanti I., Borghi V., Fontas E., Dollet K., Caissotti C., Casabona J., Miro J. M., Smith C., Lampe F., Johnson M., Burns F., Chaloner C., Lazzarin A., Poli A., Falconer K., Svedhem V., Gunthard H., Ledergerber B., Bucher H., Scherrer A., Wasmuth J. C., Rockstroh J., Fatkenheuer G., Stecher M., Schulze N., Franke B., Rooney J., Rogatto F., Garges H., Kowalska J., Raben D., Peters L., Anne A. V., Dedes N., Williams E. D., Bruguera A., Haubrich R., Svedhem-Johansson V., Bloch M., Braun D., Calmy A., Schuttfort G., Youle M., Zona S., Antinori A., Bolokadze N., Schwarze-Zander C., Duvivier C., Dragovic G., Radoi R., Oprea C., Vasylyev M., Matulionyte R., Mulabdic V., Marchetti G., Kuzovatova E., Coppola N., Martini S., Harxhi A., Waehre T., Pharris A., Vassilenko A., Bogner J., Maagaard A., Jablonowska E., Elbirt D., Marrone G., Leen C., Wyen C., Kundro M., Thorpe D., Volny-Anne A., Mendao L., Larsen J. F., Jakobsen M. L., Bruun T., Bojesen A., Hansen E. V., Elsing T. W., Kristensen D., Thomsen S., Weide T., Pelchen-Matthews A., Byonanebye, D. M., Polizzotto, M. N., Begovac, J., Grabmeier-Pfistershammer, K., Abela, I., Castagna, A., de Wit, S., Mussini, C., Vehreschild, J. J., d'Arminio Monforte, A., Wit, F. W. N. M., Pradier, C., Chkhartishvili, N., Sonnerborg, A., Hoy, J., Lundgren, J., Neesgaard, B., Bansi-Matharu, L., Greenberg, L., Llibre, J. M., Vannappagari, V., Gallant, J., Necsoi, C., Cichon, P., Reiss, P., Aho, I., Tsertsvadze, T., Mennozzi, M., Rauch, A., Muccini, C., Law, M., Mocroft, A., Ryom, L., Petoumenos, K., Hillebregt, M., Rose, N., Zangerle, R., Appoyer, H., Delforge, M., Wandeler, G., Stephan, C., Bucht, M., Chokoshvili, O., Rodano, A., Tavelli, A., Fanti, I., Borghi, V., Fontas, E., Dollet, K., Caissotti, C., Casabona, J., Miro, J. M., Smith, C., Lampe, F., Johnson, M., Burns, F., Chaloner, C., Lazzarin, A., Poli, A., Falconer, K., Svedhem, V., Gunthard, H., Ledergerber, B., Bucher, H., Scherrer, A., Wasmuth, J. C., Rockstroh, J., Fatkenheuer, G., Stecher, M., Schulze, N., Franke, B., Rooney, J., Rogatto, F., Garges, H., Kowalska, J., Raben, D., Peters, L., Anne, A. V., Dedes, N., Williams, E. D., Bruguera, A., Haubrich, R., Svedhem-Johansson, V., Bloch, M., Braun, D., Calmy, A., Schuttfort, G., Youle, M., Zona, S., Antinori, A., Bolokadze, N., Schwarze-Zander, C., Duvivier, C., Dragovic, G., Radoi, R., Oprea, C., Vasylyev, M., Matulionyte, R., Mulabdic, V., Marchetti, G., Kuzovatova, E., Coppola, N., Martini, S., Harxhi, A., Waehre, T., Pharris, A., Vassilenko, A., Bogner, J., Maagaard, A., Jablonowska, E., Elbirt, D., Marrone, G., Leen, C., Wyen, C., Kundro, M., Thorpe, D., Volny-Anne, A., Mendao, L., Larsen, J. F., Jakobsen, M. L., Bruun, T., Bojesen, A., Hansen, E. V., Elsing, T. W., Kristensen, D., Thomsen, S., Weide, T., and Pelchen-Matthews, A.
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0301 basic medicine ,Anti-HIV Agents ,Immunology ,Integrase inhibitor ,Blood lipids ,HIV Infections ,Tenofovir alafenamide ,03 medical and health sciences ,0302 clinical medicine ,ANTIRETROVIRAL AGENTS ,medicine ,Humans ,Immunology and Allergy ,Protease inhibitor (pharmacology) ,Prospective Studies ,HIV Integrase Inhibitors ,030212 general & internal medicine ,Myocardial infarction ,Dyslipidemias ,business.industry ,Incidence ,Incidence (epidemiology) ,dyslipidemia ,HIV ,medicine.disease ,Virology ,antiretroviral agents ,integrase inhibitors ,030104 developmental biology ,Infectious Diseases ,Anti-Retroviral Agents ,Reverse Transcriptase Inhibitors ,business ,Dyslipidemia - Abstract
Objective: To compare the incidence of dyslipidemia in people with HIV receiving integrase inhibitors (INSTI) versus boosted protease inhibitors (PI/b) and nonnucleoside reverse transcriptase inhibitors (NNRTI) within RESPOND consortium of prospective cohorts. Methods: Participants were eligible if they were at least 18 years, without dyslipidemia and initiated or switched to a three-drug antiretroviral therapy (ART)-regimen consisting of either INSTI, NNRTI, or PI/b for the first time, between 1 January 2012 and 31 December 2018. Dyslipidemia was defined as random total cholesterol more than 240 mg/dl, HDL less than 35 mg/dl, triglyceride more than 200 mg/dl, or initiation of lipid-lowering therapy. Poisson regression was used to determine the adjusted incidence rate ratios. Follow-up was censored after 3 years or upon ART-regimen discontinuation or last lipid measurement or 31 December 2019, whichever occurred first. Results: Overall, 4577 people with HIV were eligible (INSTI = 66.9%, PI/b = 12.5%, and NNRTI = 20.6%), 1938 (42.3%) of whom were ART-naive. During 1.7 (interquartile range, 0.6 - 3.0) median years of follow-up, 1460 participants developed dyslipidemia [incidence rate: 191.6 per 1000 person-years, 95% confidence interval (CI) 182.0 - 201.7]. Participants taking INSTI had a lower incidence of dyslipidemia compared with those on PI/b (adjusted incidence rate ratio 0.71; CI 0.59 - 0.85), but higher rate compared with those on NNRTI (1.35; CI 1.15 - 1.58). Compared with dolutegravir, the incidence of dyslipidemia was higher with elvitegravir/cobicistat (1.20; CI 1.00 - 1.43) and raltegravir (1.24; CI 1.02 - 1.51), but lower with rilpivirine (0.77; CI 0.63 - 0.94). Conclusion: In this large consortium of heterogeneous cohorts, dyslipidemia was less common with INSTI than with PI/b. Compared with dolutegravir, dyslipidemia was more common with elvitegravir/cobicistat and raltegravir, but less common with rilpivirine.
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- 2021
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22. La variole du singe
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Noemi R. Simon, Isabella C. Schpf, David Haerry, Michael J. Deml, Simon Mller, Karoline Aebi-Popp, Rolf Egli, Regina Kulier, Anne Meynard, Axel J. Schmidt, Axel Rowedder, Charles Bguelin, Beatrix Falch, Gisela Etter, Barbara Bertisch, Dominique L. Braun, Johannes Nemeth, Alexandra Calmy, and Philip Tarr
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General Medicine - Published
- 2022
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23. Affenpocken
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Noemi R. Simon, Isabella C. Schpf, David Haerry, Michael J. Deml, Simon Mller, Karoline Aebi-Popp, Rolf Egli, Regina Kulier, Anne Meynard, Axel J. Schmidt, Axel Rowedder, Charles Bguelin, Beatrix Falch, Gisela Etter, Barbara Bertisch, Dominique L. Braun, Johannes Nemeth, Alexandra Calmy, and Philip Tarr
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General Medicine - Published
- 2022
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24. Brief Report: Representations and Willingness of People Living With HIV in Switzerland to Participate in HIV Cure Trials: The Case of Gene-Modified Cell Therapies
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David Jackson-Perry, Lucie Vittoz, Ingrid Gilles, Alexandra Calmy, Isabelle Peytremann-Bridevaux, Charlotte Barbieux, Marco Alessandrini, and Saphir Lesage
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medicine.medical_specialty ,media_common.quotation_subject ,Cell- and Tissue-Based Therapy ,Human immunodeficiency virus (HIV) ,Stigma (botany) ,HIV Infections ,Treatment research ,medicine.disease_cause ,Health care ,medicine ,Humans ,Pharmacology (medical) ,Conversation ,Qualitative Research ,media_common ,Cell- and Tissue-Based Therapy/methods ,Genetic Therapy/methods ,HIV Infections/therapy ,Switzerland ,Therapeutic Human Experimentation ,business.industry ,Genetic Therapy ,Infectious Diseases ,Key factors ,Content analysis ,Anticipation (artificial intelligence) ,Family medicine ,business - Abstract
BACKGROUND Recent advances made in cell and gene therapies for cancer suggest that they represent plausible strategies to cure HIV. However, the health risks and constraints associated with these therapies require a deeper understanding of the expectations of such treatments among people living with HIV (PLWH). METHODS We conducted 15 semistructured in-depth interviews among patients from 2 HIV units in Switzerland. After a conversation about their perceptions of research on HIV therapies, participants were provided with a trial description using a gene-modified cell therapy as a potentially curative approach. They were invited to discuss how they might consider participation in the trial. Content analysis was performed to identify core themes. RESULTS Participants perceived the trial as burdensome and uncertain. Most were aware that cure was not guaranteed, and 6 of the 15 considered that they would participate. Two main concerns were expressed about potential participation: (1) the impact on the professional life and fear to be stigmatized because of this and (2) the fact that stopping antiretroviral treatment would challenge the balance currently achieved in their lives. The decision to participate would depend on their understanding of the trial, the availability of sufficient information, and the relationship with health care professionals. CONCLUSION Involving PLWH in early stages of research would be crucial to improve their understanding of gene-modified cell therapies. It could also help adapt trials to address key factors, including the anticipation of stigma, which may discourage PLWH from participating in treatment research.
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- 2021
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25. Responses to controlled release potassium fertilisers in agriculture following phosphate mining
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Hervé Calmy, Peter Skinner, Katinka X. Ruthrof, Emma Steel, John Howieson, Ron Yates, Graham O’Hara, Luca De Prato, Jen A. McComb, Sunil Misra, Giles E. St. J. Hardy, and N. Ballard
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Cadmium ,Lablab purpureus ,Potassium ,food and beverages ,Soil Science ,chemistry.chemical_element ,Biomass ,Environmental Science (miscellaneous) ,Biology ,Potassium sulfate ,food.food ,chemistry.chemical_compound ,Nutrient ,food ,chemistry ,Agronomy ,Soil water ,Legume ,Earth-Surface Processes - Abstract
The transition from mining to agriculture is hampered by a range of abiotic challenges to crop growth, including nutritional issues and heavy metal stress. Building on our previous work showing that potassium (K) limits legume growth in post-phosphate mining substrates on tropical Christmas Island, Australia, we undertook two field trials. The first compared the efficacy of controlled release K fertilisers (CRFs: KCl 2-month release, K2SO4 3-month and K2SO4 9-month) with immediately available potassium sulfate (K2SO4) fertiliser, on the legume Lablab purpureus. The second trial tested responses of L. purpureus to different rates of K2SO4 9-month CRF, and a combination treatment (CRF and K2SO4). Both trials were undertaken to determine how CRFs compare with immediately available K2SO4 in terms of increasing biomass, reducing cadmium (Cd) concentrations, maximising plant K concentrations and maintaining K soil retention. The first trial revealed that K2SO4 3-month and 9-month CRFs were similar to the 160 kg/ha K2SO4 treatment in significantly increasing L. purpureus biomass. Plant Cd and other heavy metal concentrations were significantly lower as plant biomass increased with increasing K, including with CRFs. The second trial showed no difference between various rates of K2SO4 9-month CRF and immediately available 160 kg/ha K2SO4 to increase biomass, reduce Cd or increase K concentrations. We have shown that although post-phosphate mining substrates can limit legume growth, high biomass can be attained with some CRFs, or K2SO4 at 160 kg/ha. Optimising nutrient input in post-mining agriculture is critical for developing safe, sustainable crops.
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- 2021
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26. Prevalence and Outcomes for Heavily Treatment-Experienced Individuals Living With Human Immunodeficiency Virus in a European Cohort
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Pelchen-Matthews, A., Borges, A. H., Reekie, J., Rasmussen, L. D., Wiese, L., Weber, J., Pradier, C., Degen, O., Paredes, R., Tau, L., Flamholc, L., Gottfredsson, M., Kowalska, J. D., Jablonowska, E., Mozer-Lisewska, I., Radoi, R., Vasylyev, M., Kuznetsova, A., Begovac, J., Svedhem, V., Clark, A., Cozzi-Lepri, A., Harxhi, A., Losso, M., Kundro, M., Schmied, B., Zangerle, R., Karpov, I., Vassilenko, A., Mitsura, V. M., Paduto, D., Clumeck, N., De Wit, S., Delforge, M., Florence, E., Vandekerckhove, L., Hadziosmanovic, V., Machala, L., Jilich, D., Sedlacek, D., Kronborg, G., Benfield, T., Gerstoft, J., Katzenstein, T., Pedersen, C., Johansen, I. S., Ostergaard, L., Moller, N. F., Nielsen, L. N., Zilmer, K., Smidt, J., Aho, I., Viard, J. -P., Girard, P. -M., Fontas, E., Duvivier, C., Rockstroh, J., Behrens, G., Stellbrink, H. J., Stephan, C., Goethe, J. W., Bogner, J., Fatkenheuer, G., Chkhartishvili, N., Sambatakou, H., Adamis, G., Paissios, N., Szlavik, J., Kelly, C., Turner, D., Burke, M., Shahar, E., Hassoun, G., Elinav, H., Haouzi, M., Elbirt, D., D'Arminio Monforte, A., Esposito, R., Mazeu, I., Mussini, C., Mazzotta, F., Gabbuti, A., Lazzarin, A., Castagna, A., Gianotti, N., Galli, M., Ridolfo, A., Uzdaviniene, V., Matulionyte, R., Staub, T., Hemmer, R., Dragas, S., Stevanovic, M., Reiss, P., Trajanovska, J., Reikvam, D. H., Maeland, A., Bruun, J., Knysz, B., Gasiorowski, J., Inglot, M., Bakowska, E., Flisiak, R., Grzeszczuk, A., Parczewski, M., Maciejewska, K., Aksak-Was, B., Beniowski, M., Mularska, E., Kamerys, J., Wojcik, K., Rozplochowski, B., Zagalo, A., Mansinho, K., Maltez, F., Oprea, C., Yakovlev, A., Trofimora, T., Khromova, I., Kuzovatova, E., Borodulina, E., Vdoushkina, E., Ranin, J., Tomazic, J., Miro, J. M., Laguno, M., Martinez, E., Garcia, F., Blanco, J. L., Martinez-Rebollar, M., Mallolas, J., Callau, P., Rojas, J., Inciarta, A., Moreno, S., del Campo, S., Clotet, B., Jou, A., Puig, J., Llibre, J. M., Santos, J. R., Domingo, P., Gutierrez, M., Mateo, G., Sambeat, M. A., Laporte, J. M., Falconer, K., Thalme, A., Sonnerborg, A., Treutiger, C. J., Scherrer, A., Weber, R., Cavassini, M., Calmy, A., Furrer, H., Battegay, M., Schmid, P., Mikhalik, J., Sluzhynska, M., Milinkovic, A., Johnson, A. M., Simons, E., Edwards, S., Phillips, A., Johnson, M. A., Mocroft, A., Orkin, C., Winston, A., Leen, C., Wandeler, G., Lundgren, J., Guaraldi, G., Kirk, O., Peters, L., Bojesen, A., Raben, D., Hansen, E. V., Kristensen, D., Larsen, J. F., Fischer, A. H., Amele, S., and Roen, A.
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Adult ,Male ,antiretroviral treatment ,medicine.medical_specialty ,Anti-HIV Agents ,Human immunodeficiency virus (HIV) ,non-AIDS-defining clinical conditions ,Comorbidity ,Rate ratio ,medicine.disease_cause ,symbols.namesake ,heavily treatment experienced ,Acquired immunodeficiency syndrome (AIDS) ,Antiretroviral Therapy, Highly Active ,Internal medicine ,medicine ,Humans ,Pharmacology (medical) ,Prospective Studies ,Poisson regression ,Prospective cohort study ,Acquired Immunodeficiency Syndrome ,business.industry ,Confounding ,HIV resistance ,acquired immunodeficiency syndrome ,Middle Aged ,Viral Load ,prevalence ,outcomes ,heavily ,treatment-experienced ,individuals ,HIV ,medicine.disease ,Europe ,AIDS ,Treatment Outcome ,Infectious Diseases ,Cohort ,symbols ,Female ,business ,Viral load - Abstract
Background: Although antiretroviral treatments have improved survival of persons living with HIV, their long-term use may limit available drug options. We estimated the prevalence of heavily treatment-experienced (HTE) status and the potential clinical consequences of becoming HTE. Setting: EuroSIDA, a European multicenter prospective cohort study. Methods: A composite definition for HTE was developed, based on estimates of antiretroviral resistance and prior exposure to specific antiretroviral regimens. Risks of progressing to clinical outcomes were assessed by Poisson regression, comparing every HTE individual with 3 randomly selected controls who never became HTE. Results: Of 15,570 individuals under follow-up in 2010-2016, 1617 (10.4%, 95% CI: 9.9% to 10.9%) were classified as HTE. 1093 individuals became HTE during prospective follow-up (HTE incidence rate 1.76, CI: 1.66 to 1.87 per 100 person-years of follow-up). The number of HTE individuals was highest in West/Central Europe (636/4019 persons, 15.7%) and lowest in East Europe (26/2279 persons, 1.1%). Although most HTE individuals maintained controlled viral loads (
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- 2021
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27. Changes in alanine aminotransferase levels after switching from tenofovir disoproxil fumarate (TDF) to tenofovir alafenamide (TAF) in HIV‐positive people without viral hepatitis in the Swiss HIV Cohort Study
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H, Kovari, B, Surial, P E, Tarr, M, Cavassini, A, Calmy, P, Schmid, E, Bernasconi, A, Rauch, G, Wandeler, B, Ledergerber, and S, Yerly
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Male ,0301 basic medicine ,medicine.medical_specialty ,Hepatitis, Viral, Human ,Anti-HIV Agents ,Human immunodeficiency virus (HIV) ,HIV Infections ,medicine.disease_cause ,Tenofovir alafenamide ,Gastroenterology ,Cohort Studies ,03 medical and health sciences ,0302 clinical medicine ,Fumarates ,Interquartile range ,Internal medicine ,medicine ,Humans ,Pharmacology (medical) ,030212 general & internal medicine ,Alanine aminotransferase ,Tenofovir ,610 Medicine & health ,Alanine ,business.industry ,Health Policy ,Alanine Transaminase ,Middle Aged ,medicine.disease ,030112 virology ,Confidence interval ,Infectious Diseases ,HIV-positive people ,business ,Viral hepatitis ,Switzerland ,360 Social problems & social services ,Cohort study - Abstract
OBJECTIVES We previously demonstrated an association between tenofovir disoproxil fumarate (TDF) and chronic liver enzyme elevation in the D:A:D study. The objective of the study was to assess changes in alanine aminotransferase (ALT) levels after switching from TDF to tenofovir alafenamide (TAF). METHODS We included Swiss HIV Cohort Study participants who switched from TDF to TAF with two or more ALT values in the 24 months before and two or more values in the 24 months after replacing TDF with TAF. Individuals with replicating viral hepatitis were excluded. Uni- and multivariable linear mixed models were used to explore changes in ALT values associated with switching from TDF to TAF, and to assess potential modifying effects. RESULTS A total of 1712 participants were included, contributing 6169 ALT values before and 5482 after switching. Median (interquartile range, IQR) age was 50 (42-57) years, and 75% were male. Median (IQR) ALT was 28 (22-38) U/L before and 24 (19-32) U/L after replacing TDF with TAF. ALT values decreased by 3.7 U/L (95% confidence interval: 3.2-4.2) after the switch. The median drop was larger in patients with chronic ALT elevation (defined as two or more elevated values for ≥ 6 months) compared with patients with normal ALT values (17.8 vs. 3.3 U/L, P
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- 2021
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28. Response to comments by Taramasso and colleagues on weight gain stopping/switch rules for antiretroviral clinical trials
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Francois Venter, Simiso Sokhela, Alexandra Calmy, Mark J. Siedner, Saye Khoo, Polly Clayden, Luckyboy Mkhondwane, Bronwyn Bosch, Nomathemba Chandiwana, Andrew Hill, Vincent C. Marconi, Marta Boffito, Kenly Sekwese, Mohammed Ali, Eric Delaporte, Anton Pozniak, Nkuli Mashabane, Samanta Lalla-Edwards, Mary Carman, and Simon Collins
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Infectious Diseases ,Immunology ,Immunology and Allergy - Published
- 2022
29. Use of Ritonavir-Boosted Nirmatrelvir in Pregnancy
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George K Siberry, Lynne M Mofenson, Alexandra Calmy, Uma M Reddy, and Elaine J Abrams
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Microbiology (medical) ,Infectious Diseases ,Ritonavir ,Lactams ,Pregnancy ,Humans ,Female ,HIV Protease Inhibitors - Published
- 2022
30. Anticholinergic and Sedative Medications Are Associated With Neurocognitive Performance of Well Treated People With Human Immunodeficiency Virus
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Bernadette, Jakeman, Alexandra U, Scherrer, Katharine E A, Darling, Jose, Damas, Melanie, Bieler-Aeschlimann, Barbara, Hasse, Ladina, Schlosser, Anna, Hachfeld, Klemens, Gutbrod, Philip E, Tarr, Alexandra, Calmy, Frederic, Assal, Ursula, Kunze, Marcel, Stoeckle, Patrick, Schmid, Gianina, Toller, Stefania, Rossi, Caroline, di Benedetto, Renaud, du Pasquier, Matthias, Cavassini, Catia, Marzolini, and Maria, Vargas
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We previously showed that anticholinergic (ACH) medications contribute to self-reported neurocognitive impairment (NCI) in elderly people with human immunodeficiency virus (PWH). The current cross-sectional study further evaluated the effect of ACH and sedative drugs on neurocognitive function in PWH who underwent comprehensive neuropsychological evaluation.A medication review was performed in PWH enrolled in the prospective Neurocognitive Assessment in Metabolic and Aging Cohort within the Swiss HIV Cohort Study. Neurocognitive functions were analyzed in 5 domains (motor skills, speed of information, attention/working memory, executive functions, and verbal learning memory). The effect of ACH and sedative medications on neurocognitive functioning was evaluated using linear regression models for the continuous (mean z-score) outcome and multivariable logistic regression models for the binary (presence/absence) outcome.A total of 963 PWH (80% male, 92% Caucasian, 96% virologically suppressed, median age 52) were included. Fourteen percent of participants were prescribed ≥1 ACH medication and 9% were prescribed ≥1 sedative medication. Overall, 40% of participants had NCI. Sedative medication use was associated with impaired attention/verbal learning and ACH medication use with motor skills deficits both in the continuous (mean z-score difference -0.26 to -0.14,Anticholinergic and sedative medications contribute to NCI. Clinicians need to consider these drugs when assessing NCI in PWH.
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- 2022
31. Rethinking treatment paradigms for the deployment of SARS-CoV-2 antiviral drugs on the shifting landscape of new variants
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Maxime Hentzien, Andrew Owen, Nathalie Strub-Wourgaft, Carmen Pérez-Casas, Marius Trøseid, and Alexandra Calmy
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Microbiology (medical) ,Microbiology - Published
- 2022
32. HBV REPLICATION DURING TENOFOVIR THERAPY IS FREQUENT IN HIV/HBV-COINFECTION
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Eveline, Hofmann, Bernard, Surial, Noémie, Boillat-Blanco, Huldrych F, Günthard, Marcel, Stöckle, Enos, Bernasconi, Patrick, Schmid, Alexandra, Calmy, Franziska, Suter-Riniker, Andri, Rauch, Gilles, Wandeler, and Charles, Béguelin
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In the Swiss HIV Cohort Study, 61/222 (27%) HIV-suppressed persons with chronic hepatitis B virus (HBV) infection had HBV replication after two years on tenofovir, of whom 77% were suppressed thereafter. Self-reported adherence to therapy and HBV viral load at tenofovir initiation were predictors of persistent replication.
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- 2022
33. Clinical decision support systems to guide healthcare providers on HIV testing
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Mikaela, Smit, Carlijn C E, Jordans, Jitte M, Reinhard, Wichor M, Bramer, Annelies, Verbon, Casper, Rokx, and Alexandra, Calmy
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HIV Testing ,Health Personnel ,Outcome Assessment, Health Care ,Humans ,HIV Infections ,Decision Support Systems, Clinical - Abstract
To understand the impact of clinical decision support systems (CDSSs) on improving HIV testing and diagnosis.An original global systematic review (PROSPERO Number: CRD42020175576) of peer-reviewed articles reporting on electronic CDSSs that generate triggers encouraging healthcare providers to perform an HIV test.Medline, Embase, Cochrane CENTRAL and CINAHL EBSCOhost were searched up to 17 November 2020 and reference lists of included articles were checked. Qualitative and quantitative syntheses (using meta-analyses) of identified studies were performed.The search identified 1424 records. Twenty-two articles met inclusion criteria (19 of 22 non-HIV endemic settings); 18 clinical and four laboratory-driven reminders. Reminders promoted 'universal' HIV testing for all patients without a known HIV infection and no recent documented HIV test, or 'targeted' HIV testing in patients with clinical risk-factors or specific diagnostic tests. CDSSs increased HIV testing in hospital and nonhospital setting, with the pooled risk-ratio amongst studies reporting comparable outcome measures in hospital settings (n = 3) of 2.57 [95% confidence interval (CI) 1.53-4.33, random-effect model] and in nonhospital settings (n = 4) of 2.13 (95% CI 1.78-4.14, random effect model). Results of the clinical impact of CDSSs on HIV diagnosis were mixed.CDSSs improve HIV testing and may, potentially, improve diagnosis. The data support the broader study of CDSSs in low- and high prevalent HIV settings to determine their precise impact on UNAIDS goals to reach universal HIV testing and treatment coverage.
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- 2022
34. Risk Factors and Incidence of Sexually Transmitted Infections in the Swiss HIV Cohort Study
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Davide, Bosetti, Catrina, Mugglin, Alexandra, Calmy, Matthias, Cavassini, Marcel, Stöckle, Dominique, Braun, Julia, Notter, David, Haerry, Benjamin, Hampel, Helen, Kovari, Enos, Bernasconi, Gilles, Wandeler, Andri, Rauch, and S, Yerly
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Infectious Diseases ,Oncology ,610 Medicine & health - Abstract
Background Sexually transmitted infections (STIs) are common among people with human immunodeficiency virus (PWH), but there are limited data about risk factors and incidence of STIs in large, representative cohort studies. Methods We assessed incidence and risk factors of STIs reported by treating physicians within the Swiss HIV Cohort Study (SHCS). Sexually transmitted infections and demographic, clinical, and behavioral characteristics were prospectively collected at 6-month follow-up visits between October 2017 and November 2019. We used multilevel Poisson regression to assess incidence rate ratios of different STIs. Results Among 10 140 study participants, a total of 1634 STIs in 1029 SHCS participants were reported over 17 766 person-years of follow up (PYFUP). The overall incidence of any reported STI was 91.9 per 1000 PYFU (95% confidence interval [CI], 85.8 –98.5). Among the 1634 STI episodes, there were 573 (35.1%) incident cases of syphilis, 497 gonorrhea (30.4%), and 418 chlamydia (25.6%). Men who have sex with men (MSM) younger than 50 years represented 21% of the study population, but accounted for 61% of reported STIs. Male sex (adjusted incidence rate ratio [aIRR], 2.03; 95% CI, 1.36–3.02), MSM (aIRR, 3.62; 95% CI, 2.88–4.55), age group 18–34 years (aIRR, 1.78; 95% CI, 1.51–2.10), history of sexual relationships with occasional partners (aIRR, 6.87; 95% CI, 5.40–8.73), and reporting injecting drug use (aIRR, 2.48; 95% CI, 1.91–3.23) were associated with a higher risk of incident STIs. Conclusions Sexually transmitted infections were frequent among PWH and varied considerably between age and risk groups. Screening programs and recommendations for STI testing need to be adapted according to risk factors and demographic characteristics.
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- 2022
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35. Approaches to accelerating the study of new antiretrovirals in pregnancy
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Elaine J. Abrams, Alexandra Calmy, Lee Fairlie, Imelda C. Mahaka, Lameck Chimula, Patricia M. Flynn, John Kinuthia, Landon Myer, Saye H. Khoo, Philippa Musoke, Sheryl Zwerski, Jennifer M. Zech, Shahin Lockman, and George K. Siberry
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Adult ,Adolescent ,Anti-HIV Agents ,Infant, Newborn ,Public Health, Environmental and Occupational Health ,HIV Infections ,World Health Organization ,Infectious Disease Transmission, Vertical ,Infectious Diseases ,Anti-Retroviral Agents ,Pregnancy ,Humans ,Female ,Pregnancy Complications, Infectious ,Child - Abstract
Women who are pregnant or who could become pregnant experience delayed access to or underinformed use of important new antiretroviral (ARV) drugs because of traditional drug development processes that ostensibly aim to reduce potential harm but effectively fail to ensure that timely information about safe and effective use in pregnancy is available.The World Health Organization and International Maternal, Pediatric, Adolescent Antiretroviral Clinical Trials Network convened a year-long workshop on "Approaches to Enhance and Accelerate Study of New Drugs for HIV and Associated Infections in Pregnant Women." Workshop participants were tasked with defining key principles and optimal approaches to including pregnant women in pre- and post-licensure trials in order to accelerate the availability of pharmacokinetic and safety data for new ARV agents in pregnancy. ARV efficacy in pregnancy and ARV efficacy for prevention of vertical transmission can be extrapolated from proof of efficacy in non-pregnant adults, provided that drug levels in pregnancy are similar. However, short-term safety and pharmacokinetics must be studied directly in pregnant women and should be conducted and included in initial licensure for all new ARVs. Accelerating the timeline for completion of pre-clinical studies is essential for pregnancy short-term safety and pharmacokinetic studies to be safely completed by the time a drug is licensed. Composite key pregnancy, birth and neonatal outcomes are critical for drugs expected to have broad use, and studies should be initiated at or soon after drug licensure. Teratogenicity risk cannot be feasibly assessed before drug licensure and will depend on robust post-marketing surveillance systems. With some modifications, these principles will apply to ARVs used for prevention, two-drug regimens, long-acting ARVs and ARVs administered through novel delivery systems.Implementation of the proposed principles and framework will enhance and accelerate the study of new ARVs in pregnancy, resulting in more timely, equitable and informed access to new ARVs for pregnant women.
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- 2022
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36. The association between hepatitis B virus infection and nonliver malignancies in persons living with HIV: results from the EuroSIDA study
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Mocroft, Amanda, Miro, Jose M., Wandeler, Gilles, Llibre, Josep M., Boyd, Anders, van Bremen, Kathrin, Beniowski, Marek, Mikhalik, Julia, Cavassini, Matthias, Maltez, Fernando, Duvivier, Claudine, Uberti Foppa, Caterina, Knysz, Brygida, Bakowska, Elzbieta, Kuzovatova, Elena, Domingo, Pere, Zagalo, Alexandra, Viard, Jean Paul, Degen, Olaf, Milinkovic, Ana, Benfield, Thomas, Peters, Lars, Harxhi, A., Losso, M., Kundro, M., Schmied, B., Zangerle, R., Karpov, I., Vassilenko, A., Mitsura, V. M., Paduto, D., Clumeck, N., De Wit, S., Delforge, M., Florence, E., Vandekerckhove, L., Hadziosmanovic, V., Begovac, J., Machala, L., Sedlacek, D., Kronborg, G., Gerstoft, J., Katzenstein, T., Pedersen, C., Johansen, I. S., Ostergaard, L., Wiese, L., Moller, N. F., Nielsen, L. N., Zilmer, K., Smidt, J., Aho, I., Lacombe, K., Pradier, C., Fontas, E., Rockstroh, J., Behrens, G., Hoffmann, C., Stellbrink, H. J., Stefan, C., Bogner, J., Fätkenheuer, G., Chkhartishvili, N., Sambatakou, H., Adamis, G., Paissios, N., Szlávik, J., Gottfredsson, M., Devitt, E., Tau, L., Turner, D., Burke, M., Shahar, E., Wattad, L. M., Elinav, H., Haouzi, M., Elbirt, D., D’Arminio Monforte, A., Esposito, R., Mazeu, I., Mussini, C., Mazzotta, F., Gabbuti, A., Lazzarin, A., Castagna, A., Gianotti, N., Galli, M., Ridolfo, A., Uzdaviniene, V., Matulionyte, R., Staub, T., Hemmer, R., Dragas, S., Stevanovic, M., vd Valk, M., Trajanovska, J., Reikvam, D. H., Maeland, A., Bruun, J., Szetela, B., Inglot, M., Flisiak, R., Grzeszczuk, A., Parczewski, M., Maciejewska, K., Aksak-Was, B., Mularska, E., Jablonowska, E., Kamerys, J., Wojcik, K., Mozer-Lisewska, I., Rozplochowski, B., Mansinho, K., Radoi, R., Oprea, C., Gusev, D., Trofimova, T., Khromova, I., Borodulina, E., Ranin, J., Tomazic, J., Miró, J. M., Laguno, M., Martinez, E., Garcia, F., Blanco, J. L., Martinez-Rebollar, M., Mallolas, J., Callau, P., Rojas, J., Inciarta, A., Moreno, S., del Campo, S., Clotet, B., Jou, A., Paredes, R., Puig, J., Santos, J. R., Gutierrez, M., Mateo, G., Sambeat, M. A., Laporte, J. M., Svedhem, V., Thalme, A., Sönnerborg, A., Brännström, J., Flamholc, L., Kusejko, K., Braun, D., Calmy, A., Furrer, H., Battegay, M., Schmid, P., Kuznetsova, A., Sluzhynska, M., Johnson, M. A., Simons, E., Edwards, S., Phillips, A., Orkin, C., Winston, A., Clarke, A., Leen, C., Lundgren, J., Rasmussen, L. D., Kowalska, J. D., Guaraldi, G., Larsen, J. F., Bojesen, A., Neesgaard, B., Jaschinski, N., Fursa, O., Sather, M., Raben, D., Hansen, E. V., Kristensen, D., Fischer, A. H., Jensen, S. K., Elsing, T. W., Reekie, J., Cozzi-Lepri, A., Amele, S., Pelchen-Matthews, A., Roen, A., Tusch, E. S., Bannister, W., Mocroft, A., Miro, J. M., Wandeler, G., Llibre, J. M., Boyd, A., van Bremen, K., Beniowski, M., Mikhalik, J., Cavassini, M., Maltez, F., Duvivier, C., Uberti Foppa, C., Knysz, B., Bakowska, E., Kuzovatova, E., Domingo, P., Zagalo, A., Viard, J. -P., Degen, O., Milinkovic, A., Benfield, T., Peters, L., Harxhi, A., Losso, M., Kundro, M., Schmied, B., Zangerle, R., Karpov, I., Vassilenko, A., Mitsura, V. M., Paduto, D., Clumeck, N., De Wit, S., Delforge, M., Florence, E., Vandekerckhove, L., Hadziosmanovic, V., Begovac, J., Machala, L., Sedlacek, D., Kronborg, G., Gerstoft, J., Katzenstein, T., Pedersen, C., Johansen, I. S., Ostergaard, L., Wiese, L., Moller, N. F., Nielsen, L. N., Zilmer, K., Smidt, J., Aho, I., Lacombe, K., Pradier, C., Fontas, E., Rockstroh, J., Behrens, G., Hoffmann, C., Stellbrink, H. J., Stefan, C., Bogner, J., Fatkenheuer, G., Chkhartishvili, N., Sambatakou, H., Adamis, G., Paissios, N., Szlavik, J., Gottfredsson, M., Devitt, E., Tau, L., Turner, D., Burke, M., Shahar, E., Wattad, L. M., Elinav, H., Haouzi, M., Elbirt, D., D'Arminio Monforte, A., Esposito, R., Mazeu, I., Mussini, C., Mazzotta, F., Gabbuti, A., Lazzarin, A., Castagna, A., Gianotti, N., Galli, M., Ridolfo, A., Uzdaviniene, V., Matulionyte, R., Staub, T., Hemmer, R., Dragas, S., Stevanovic, M., vd Valk, M., Trajanovska, J., Reikvam, D. H., Maeland, A., Bruun, J., Szetela, B., Inglot, M., Flisiak, R., Grzeszczuk, A., Parczewski, M., Maciejewska, K., Aksak-Was, B., Mularska, E., Jablonowska, E., Kamerys, J., Wojcik, K., Mozer-Lisewska, I., Rozplochowski, B., Mansinho, K., Radoi, R., Oprea, C., Gusev, D., Trofimova, T., Khromova, I., Borodulina, E., Ranin, J., Tomazic, J., Laguno, M., Martinez, E., Garcia, F., Blanco, J. L., Martinez-Rebollar, M., Mallolas, J., Callau, P., Rojas, J., Inciarta, A., Moreno, S., del Campo, S., Clotet, B., Jou, A., Paredes, R., Puig, J., Santos, J. R., Gutierrez, M., Mateo, G., Sambeat, M. A., Laporte, J. M., Svedhem, V., Thalme, A., Sonnerborg, A., Brannstrom, J., Flamholc, L., Kusejko, K., Braun, D., Calmy, A., Furrer, H., Battegay, M., Schmid, P., Kuznetsova, A., Sluzhynska, M., Johnson, A. M., Simons, E., Edwards, S., Phillips, A., Johnson, M. A., Orkin, C., Winston, A., Clarke, A., Leen, C., Lundgren, J., Rasmussen, L. D., Kowalska, J. D., Guaraldi, G., Larsen, J. F., Bojesen, A., Neesgaard, B., Jaschinski, N., Fursa, O., Sather, M., Raben, D., Hansen, E. V., Kristensen, D., Fischer, A. H., Jensen, S. K., Elsing, T. W., Reekie, J., Cozzi-Lepri, A., Amele, S., Pelchen-Matthews, A., Roen, A., Tusch, E. S., Bannister, W., and Infectious diseases
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Hepatitis B virus ,Hepatitis B Surface Antigens ,Health Policy ,virus diseases ,HIV Infections ,Hepatitis B ,digestive system diseases ,HBV DNA ,hepatitis B ,nonliver cancer ,Infectious Diseases ,Hepatitis B, Chronic ,Neoplasms ,DNA, Viral ,Humans ,Pharmacology (medical) ,610 Medicine & health - Abstract
Objectives: The aim of this study was to assess the impact of hepatitis B virus (HBV) infection on non-liver malignancies in people living with HIV (PLWH). Methods: All persons aged ≥18 years with known hepatitis B virus (HBV) surface antigen (HBsAg) status after the latest of 1January 2001 and enrolment in the EuroSIDA cohort (baseline) were included in the study; persons were categorized as HBV positive or negative using the latest HBsAg test and followed to their first diagnosis of nonliver malignancy or their last visit. Results: Of 17485 PLWH included in the study, 1269 (7.2%) were HBV positive at baseline. During 151766 person-years of follow-up (PYFU), there were 1298 nonliver malignancies, 1199 in those currently HBV negative [incidence rate (IR)8.42/1000 PYFU; 95% confidence interval (CI) 7.94–8.90/1000 PYFU] and 99 in those HBV positive (IR10.54/1000 PYFU; 95% CI8.47–12.62/1000 PYFU). After adjustment for baseline confounders, there was a significantly increased incidence of nonliver malignancies in HBV-positive versus HBV-negative individuals [adjusted incidence rate ratio (aIRR)1.23; 95% CI 1.00–1.51]. Compared to HBV-negative individuals, HBsAg-positive/HBV-DNA-positive individuals had significantly increased incidences of nonliver malignancies (aIRR 1.37; 95% CI 1.00–1.89) and NHL (aIRR 2.57; 95% CI 1.16–5.68). There was no significant association between HBV and lung or anal cancer. Conclusions: We found increased rates of nonliver malignancies in HBsAg-positive participants, the increases being most pronounced in those who were HBV DNA positive and for NHL. If confirmed, these results may have implications for increased cancer screening in HIV-positive subjects with chronic HBV infection.
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- 2021
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37. The association between depressive symptoms and neurocognitive impairment in people with well-treated HIV in Switzerland
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Renaud Du Pasquier, Matthias Cavassini, Isabella Locatelli, Mélanie Métral, Helen Kovari, Caroline Di Benedetto, Severin Früh, Philip E. Tarr, Alexandra Calmy, Alexandre Berney, Galia M A Santos, Katharine E A Darling, Peter Brugger, Ursi Kunze, Marcel Stoeckle, Stefania Rossi, Patrick Schmid, Isaure Nadin, Klemens Gutbrod, and Christoph Hauser
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Male ,medicine.medical_specialty ,Neurocognitive Disorders ,Human immunodeficiency virus (HIV) ,HIV Infections ,Dermatology ,Neuropsychological Tests ,medicine.disease_cause ,Cohort Studies ,03 medical and health sciences ,0302 clinical medicine ,Humans ,Medicine ,Pharmacology (medical) ,Longitudinal Studies ,Prospective Studies ,030212 general & internal medicine ,Psychiatry ,Association (psychology) ,Depressive symptoms ,Depression (differential diagnoses) ,Depression ,business.industry ,Public Health, Environmental and Occupational Health ,Middle Aged ,Cross-Sectional Studies ,Infectious Diseases ,Female ,Neuropsychological testing ,business ,Neurocognitive ,Switzerland ,030217 neurology & neurosurgery - Abstract
Background: Depression may contribute to neurocognitive impairment (NCI) in people with HIV (PWH). Attributing NCI to depression rather than to HIV is complicated as depression may be both a causal factor and an effect of NCI. This study aimed to determine the association between depressive symptoms and NCI among PWH with well-controlled infection. Methods: The Neurocognitive Assessment in the Metabolic and Ageing Cohort study is an ongoing, prospective, longitudinal study of PWH aged ≥45 years old nested within the Swiss HIV Cohort Study. Neurocognitive Assessment in the Metabolic and Ageing Cohort study participants underwent neurocognitive assessment and grading of depressive symptoms using the Centre for Epidemiological Studies Depression Scale. Neurocognitive impairment categories were defined using Frascati criteria. Participants with NCI related to neurological or psychiatric confounders other than depression were excluded. The cross-sectional association between the Centre for Epidemiological Studies Depression score and neurocognitive impairment was examined taking Centre for Epidemiological Studies Depression score as a continuous variable and then as a binary variable using two score thresholds, 16 and 27. Results: Excluding 79 participants with confounding factors, 902 participants were studied: 81% were men; 96% had plasma viral loads
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- 2021
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38. VIH/sida - VIH au temps du Covid-19 : rencontre de deux pandémies
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Olivier Nawej Tshikung, Hélène Buvelot, Alexandra Calmy, and Matthias Cavassini
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General Medicine - Published
- 2021
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39. Analysis of inappropriate prescribing in elderly patients of the Swiss HIV Cohort Study reveals gender inequity
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Françoise, Livio, Elisabeth, Deutschmann, Giusi, Moffa, Flamur, Rrustemi, Felix, Stader, Luigia, Elzi, Dominique L, Braun, Alexandra, Calmy, Anna, Hachfeld, Matthias, Cavassini, Philip E, Tarr, Kerstin, Wissel, Manuel, Battegay, Catia, Marzolini, and S, Yerly
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Male ,0301 basic medicine ,Microbiology (medical) ,medicine.medical_specialty ,030106 microbiology ,Population ,Beers Criteria ,HIV Infections ,Inappropriate Prescribing ,Cohort Studies ,03 medical and health sciences ,0302 clinical medicine ,Internal medicine ,medicine ,Humans ,Pharmacology (medical) ,030212 general & internal medicine ,Medical prescription ,education ,Aged ,Retrospective Studies ,Pharmacology ,Geriatrics ,Polypharmacy ,education.field_of_study ,business.industry ,Medical record ,medicine.disease ,Comorbidity ,Infectious Diseases ,Female ,business ,Switzerland ,Cohort study - Abstract
BackgroundThe extent of inappropriate prescribing observed in geriatric medicine has not been thoroughly evaluated in people ageing with HIV. We determined the prevalence of and risk factors for inappropriate prescribing in individuals aged ≥75 years enrolled in the Swiss HIV Cohort Study.MethodsRetrospective review of medical records was performed to gain more insights into non-HIV comorbidities. Inappropriate prescribing was screened using the Beers criteria, the STOPP/START criteria and the Liverpool drug–drug interactions (DDIs) database.ResultsFor 175 included individuals, the median age was 78 years (IQR 76–81) and 71% were male. The median number of non-HIV comorbidities was 7 (IQR 5–10). The prevalence of polypharmacy and inappropriate prescribing was 66% and 67%, respectively. Overall, 40% of prescribing issues could have deleterious consequences. Prescribing issues occurred mainly with non-HIV drugs and included: incorrect dosage (26%); lack of indication (21%); prescription omission (drug not prescribed although indicated) (17%); drug not appropriate in elderly individuals (18%) and deleterious DDIs (17%). In the multivariable logistic regression, risk factors for prescribing issues were polypharmacy (OR: 2.5; 95% CI: 1.3–4.7), renal impairment (OR: 2.7; 95% CI: 1.4–5.1), treatment with CNS-active drugs (OR: 2.1; 95% CI: 1.1–3.8) and female sex (OR: 8.3; 95% CI: 2.4–28.1).ConclusionsPolypharmacy and inappropriate prescribing are highly prevalent in elderly people living with HIV. Women are at higher risk than men, partly explained by sex differences in the occurrence of non-HIV comorbidities and medical care. Medication reconciliation and periodic review of prescriptions by experienced physicians could help reduce polypharmacy and inappropriate prescribing in this vulnerable, growing population.
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- 2020
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40. Predictors of Virological Failure and Time to Viral Suppression of First-Line Integrase Inhibitor–Based Antiretroviral Treatment
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Ashima, Pyngottu, Alexandra U, Scherrer, Roger, Kouyos, Michael, Huber, Hans, Hirsch, Matthieu, Perreau, Sabine, Yerly, Alexandra, Calmy, Matthias, Cavassini, Marcel, Stöckle, Hansjakob, Furrer, Pietro, Vernazza, Enos, Bernasconi, Huldrych F, Günthard, and S, Yerly
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integrase strand transfer inhibitors ,0301 basic medicine ,Microbiology (medical) ,medicine.medical_specialty ,030106 microbiology ,Integrase inhibitor ,610 Medicine & health ,HIV Infections ,HIV Integrase ,Drug resistance ,Cohort Studies ,03 medical and health sciences ,chemistry.chemical_compound ,0302 clinical medicine ,Internal medicine ,Drug Resistance, Viral ,Humans ,Medicine ,Viremia ,HIV Integrase Inhibitors ,Treatment Failure ,030212 general & internal medicine ,Online Only Articles ,drug resistance ,biology ,business.industry ,Proportional hazards model ,Hazard ratio ,HIV ,Integrase ,minor drug resistance mutations ,HIV/AIDS Collection ,AcademicSubjects/MED00290 ,Infectious Diseases ,Anti-Retroviral Agents ,chemistry ,Dolutegravir ,Cohort ,treatment outcome ,biology.protein ,business ,Viral load - Abstract
Background Integrase strand transfer inhibitors (InSTIs) are recommended for first-line treatment of persons with human immunodeficiency virus (HIV). We identified risk factors, including baseline minor InSTI resistance mutations, for treatment failure of InSTI-based regimens. Methods We studied time-to-treatment failure and time to viral suppression among 1419 drug-naive patients in the Swiss HIV Cohort Study. We performed Cox regression models adjusted for demographic factors, baseline HIV RNA/CD4 cell counts, AIDS-defining events, and the type of InSTI. In 646 patients with a baseline genotypic resistance test of the integrase, we studied the impact of minor integrase resistance mutations. Results We observed 121 virological failures during 18 447 person-years of follow-up. A baseline viral load ≥100 000 copies/mL (multivariable hazard ratio [mHR], 2.2; 95% confidence interval [CI], 1.3–3.6) and an AIDS-defining event (mHR, 1.8; 95% CI. 1.1–3.0) were associated with treatment failure. CD4 counts between 200 and 500 cells/µL (mHR, 0.5; 95% CI, .3–.8) and >500 cells/µL (mHR, 0.4; 95% CI, .2–.7) were protective. Time to suppression was shorter in lower viral load strata (mHR, 0.7; 95% CI, .6–.8) and in dolutegravir-based therapy (mHR, 1.2; 95% CI, 1.0–1.4). Minor resistance mutations were found at baseline in 104 of 646 (16%) patients with no effect on treatment outcome. Conclusions Factors associated with treatment failure on InSTI-based first-line regimen remained similar to those of older treatments, in particular high viral load and low CD4 counts., Integrase strand transfer inhibitor–based therapies are effective as first-line treatment of persons living with human immunodeficiency virus. Among 1419 patients, we identified a high baseline viral load, low CD4 cell counts, and an AIDS-defining event before treatment initiation as predictors for treatment failure.
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- 2020
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41. Telomere Length, Traditional Risk Factors, Factors Related to Human Immunodeficiency Virus (HIV) and Coronary Artery Disease Events in Swiss Persons Living With HIV
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Bruno Ledergerber, Tanja Engel, Peter Reiss, Huldrych F. Günthard, Barbara Hasse, Katharine E A Darling, Roger D. Kouyos, Jan A Roth, Enos Bernasconi, Marieke Raffenberg, Christian W Thorball, Neeltje A. Kootstra, Philip E. Tarr, Kerstin Wissel, Alexandra Calmy, Isabella C Schoepf, Cédric Hirzel, Jacques Fellay, Experimental Immunology, AII - Infectious diseases, APH - Aging & Later Life, Global Health, and Infectious diseases
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Male ,Microbiology (medical) ,medicine.medical_specialty ,Population ,HIV Infections ,030204 cardiovascular system & hematology ,Cohort Studies ,03 medical and health sciences ,0302 clinical medicine ,Risk Factors ,Interquartile range ,Abacavir ,Internal medicine ,Humans ,Medicine ,030212 general & internal medicine ,education ,education.field_of_study ,Framingham Risk Score ,business.industry ,multivariable analysis ,HIV ,Lopinavir ,leucocyte telomere length ,Odds ratio ,Middle Aged ,Telomere ,HIV infection ,Confidence interval ,Infectious Diseases ,traditional risk factors ,Female ,business ,Switzerland ,coronary artery disease ,medicine.drug ,Cohort study - Abstract
Background Leukocyte telomere length (TL) shortens with age and is associated with coronary artery disease (CAD) events in the general population. Persons living with human immunodeficiency virus (HIV; PLWH) may have accelerated atherosclerosis and shorter TL than the general population. It is unknown whether TL is associated with CAD in PLWH. Methods We measured TL by quantitative polymerase chain reaction (PCR) in white Swiss HIV Cohort Study participants. Cases had a first CAD event during 1 January 2000 to 31 December 2017. We matched 1–3 PLWH controls without CAD events on sex, age, and observation time. We obtained univariable and multivariable odds ratios (OR) for CAD from conditional logistic regression analyses. Results We included 333 cases (median age 54 years; 14% women; 83% with suppressed HIV RNA) and 745 controls. Median time (interquartile range) of TL measurement was 9.4 (5.9–13.8) years prior to CAD event. Compared to the 1st (shortest) TL quintile, participants in the 5th (longest) TL quintile had univariable and multivariable CAD event OR = 0.56 (95% confidence interval [CI], .35–.91) and OR = 0.54 (95% CI, .31–.96). Multivariable OR for current smoking was 1.93 (95% CI, 1.27–2.92), dyslipidemia OR = 1.92 (95% CI, 1.41–2.63), and for recent abacavir, cumulative lopinavir, indinavir, and darunavir exposure was OR = 1.82 (95% CI, 1.27–2.59), OR = 2.02 (95% CI, 1.34–3.04), OR = 3.42 (95% CI, 2.14–5.45), and OR = 1.66 (95% CI, 1.00–2.74), respectively. The TL-CAD association remained significant when adjusting only for Framingham risk score, when excluding TL outliers, and when adjusting for CMV-seropositivity, HCV-seropositivity, time spent with detectable HIV viremia, and injection drug use. Conclusions In PLWH, TL measured >9 years before, is independently associated with CAD events after adjusting for multiple traditional and HIV-related factors.
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- 2020
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42. Cohort-Derived Machine Learning Models for Individual Prediction of Chronic Kidney Disease in People Living With Human Immunodeficiency Virus: A Prospective Multicenter Cohort Study
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Enos Bernasconi, Roger D. Kouyos, Andri Rauch, Manuel Battegay, Jasmina Bogojeska, Huldrych F. Günthard, Christoph A Fux, Matthias Cavassini, Jan A Roth, Gorjan Radevski, Catia Marzolini, Christian R Kahlert, Alexandra U. Scherrer, and Alexandra Calmy
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Male ,digital epidemiology ,Health Knowledge, Attitudes, Practice ,Human immunodeficiency virus (HIV) ,HIV Infections ,medicine.disease_cause ,computer.software_genre ,GLOMERULAR-FILTRATION-RATE ,Cohort Studies ,Machine Learning ,Risk Factors ,Epidemiology ,Immunology and Allergy ,LIFE EXPECTANCY ,Prospective Studies ,Training set ,Middle Aged ,AcademicSubjects/MED00290 ,machine learning ,Infectious Diseases ,Cohort ,HIV/AIDS ,Female ,Life Sciences & Biomedicine ,Switzerland ,Glomerular Filtration Rate ,Cohort study ,Adult ,medicine.medical_specialty ,Immunology ,Renal function ,Machine learning ,Microbiology ,Major Articles and Brief Reports ,Predictive Value of Tests ,medicine ,Humans ,AcademicSubjects/MED00860 ,Renal Insufficiency, Chronic ,Science & Technology ,Receiver operating characteristic ,business.industry ,HIV ,prediction ,PERFORMANCE ,medicine.disease ,Artificial intelligence ,business ,computer ,chronic kidney disease ,Kidney disease - Abstract
Background It is unclear whether data-driven machine learning models, which are trained on large epidemiological cohorts, may improve prediction of comorbidities in people living with human immunodeficiency virus (HIV). Methods In this proof-of-concept study, we included people living with HIV in the prospective Swiss HIV Cohort Study with a first estimated glomerular filtration rate (eGFR) >60 mL/minute/1.73 m2 after 1 January 2002. Our primary outcome was chronic kidney disease (CKD)—defined as confirmed decrease in eGFR ≤60 mL/minute/1.73 m2 over 3 months apart. We split the cohort data into a training set (80%), validation set (10%), and test set (10%), stratified for CKD status and follow-up length. Results Of 12 761 eligible individuals (median baseline eGFR, 103 mL/minute/1.73 m2), 1192 (9%) developed a CKD after a median of 8 years. We used 64 static and 502 time-changing variables: Across prediction horizons and algorithms and in contrast to expert-based standard models, most machine learning models achieved state-of-the-art predictive performances with areas under the receiver operating characteristic curve and precision recall curve ranging from 0.926 to 0.996 and from 0.631 to 0.956, respectively. Conclusions In people living with HIV, we observed state-of-the-art performances in forecasting individual CKD onsets with different machine learning algorithms., In people living with HIV who participate in the Swiss HIV Cohort Study, we observed state-of-the-art performances in forecasting individual onsets of chronic kidney disease with different machine learning algorithms.
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- 2020
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43. Evolocumab in HIV-Infected Patients With Dyslipidemia
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Franck Boccara, Princy N. Kumar, Bruno Caramelli, Alexandra Calmy, J. Antonio G. López, Sarah Bray, Marcoli Cyrille, Robert S. Rosenson, David Baker, Mark Bloch, Robert Finlayson, Jennifer Hoy, Kenneth Koh, Norman Roth, Stephane De Wit, Eric Florence, Linos Vandekerckhove, Jose Valdez Ramalho Madruga, Sandra Wagner Cardoso, Greg Bondy, Michael Gill, George Tsoukas, Sylvie Trottier, Marek Smieja, Christine Katlama, Fabrice Bonnet, Francois Raffi, Laurent Cotte, Jean-Michel Molina, Jacques Reynes, Antonios Papadopoulos, Simeon Metallidis, Vassilios Paparizos, Vasileios Papastamopoulos, Cristina Mussini, Massimo Galli, Andrea Antinori, Antonio Di Biagio, Pierluigi Viale, Andrzej Horban, Nuno Marques, Daniel Coutinho, Joaquim Oliveira, Paula Freitas, Liliana-Lucia Preotescu, Iosif Marincu, Rodica Silaghi, Sorin Rugina, Noluthando Mwelase, Sheena Kotze, Jose Ignacio Bernardino de la Serna, Vicente Estrada Perez, Esteban Martinez, Adrian Curran, Dominique Laurent Braun, Enos Bernasconi, Matthias Cavassini, John Walsh, Julie Fox, Graeme Moyle, Robert Rosenson, Jamie Morano, Jason Baker, Gerald Pierone, Carl Fichtenbaum, Paul Benson, Deborah Goldstein, Joseph Sacco, Princy Kumar, Robert Grossberg, Kara Chew, Christopher DeFilippi, Vilma Drelichman, Norman Markowitz, David Parenti, Katherine Doktor, and Paul Thompson
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medicine.medical_specialty ,Statin ,medicine.drug_class ,business.industry ,030204 cardiovascular system & hematology ,medicine.disease ,Placebo ,3. Good health ,Double blind ,03 medical and health sciences ,Evolocumab ,0302 clinical medicine ,Internal medicine ,medicine ,Clinical endpoint ,Hiv infected patients ,lipids (amino acids, peptides, and proteins) ,030212 general & internal medicine ,Cardiology and Cardiovascular Medicine ,Adverse effect ,business ,Dyslipidemia - Abstract
Background People living with HIV (PLHIV) are at increased risk of atherosclerotic cardiovascular disease (ASCVD) and prone to statin-related adverse events from drug-drug interactions with certain antiretroviral regimens. Objectives This study sought to evaluate the efficacy and safety of evolocumab in dyslipidemic PLHIV. Methods BEIJERINCK is a randomized, double-blind, multinational trial comparing monthly subcutaneous evolocumab 420 mg with placebo in PLHIV with hypercholesterolemia/mixed dyslipidemia taking maximally-tolerated statin therapy. The primary endpoint was the percent change (baseline to week 24) in low-density lipoprotein cholesterol (LDL-C); secondary endpoints included achievement of LDL-C Results A total of 464 patients were analyzed (mean age of 56.4 years, 82.5% male, mean duration with HIV of 17.4 years). ASCVD was documented in 35.6% of patients, and statin intolerance/contraindications to statin use were present in 20.7% of patients. Evolocumab reduced LDL-C by 56.9% (95% CI: 61.6%, 52.3%) from baseline to week 24 versus placebo. An LDL-C level of Conclusions Evolocumab was safe and significantly reduced lipid levels in dyslipidemic PLHIV on maximally-tolerated statin therapy. Evolocumab is an effective therapy for lowering atherogenic lipoproteins in PLHIV with high cardiovascular risk.
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- 2020
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44. Capacity Building in Sub-Saharan Africa as Part of the INTENSE-TBM Project During the COVID-19 Pandemic
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Ariza-Vioque, E, Ello, F, Andriamamonjisoa, H, Machault, V, González-Martín, J, Calvo-Cortés, MC, Eholié, S, Tchabert, GA, Ouassa, T, Raberahona, M, Rakotoarivelo, R, Razafindrakoto, H, Rahajamanana, L, Wilkinson, RJ, Davis, A, Maxebengula, M, Abrahams, F, Muzoora, C, Nakigozi, N, Nyehangane, D, Nanjebe, D, Mbega, H, Kaitano, R, Bonnet, M, Debeaudrap, P, Miró, JM, Anglaret, X, Rakotosamimanana, N, Calmy, A, Bonnet, F, Ambrosioni, J, Group, INTENSE-TBM, Wellcome Trust, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Universitat de Barcelona (UB), Programme PACCI [Abidjan, Côte d'Ivoire] (Site ANRS Côte d'Ivoire), ANRS France Recherche Nord & sud Sida-hiv hépatites, Institut Pasteur de Madagascar, Réseau International des Instituts Pasteur (RIIP), Bordeaux population health (BPH), Université de Bordeaux (UB)-Institut de Santé Publique, d'Épidémiologie et de Développement (ISPED)-Institut National de la Santé et de la Recherche Médicale (INSERM), Global Health in the Global South (GHiGS), Institut de Recherche pour le Développement (IRD)- Bordeaux population health (BPH), Université de Bordeaux (UB)-Institut de Santé Publique, d'Épidémiologie et de Développement (ISPED)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Bordeaux (UB)-Institut de Santé Publique, d'Épidémiologie et de Développement (ISPED)-Institut National de la Santé et de la Recherche Médicale (INSERM), Hospital Clínic de Barcelona [Catalonia, Spain], Instituto de Salud Global - Institute For Global Health [Barcelona] (ISGlobal), Agence Nationale de Recherches sur le Sida et les Hépatites Virales (ANRS), Centre Hospitalier Universitaire [Treichville] (CHU), Centre de recherche et de Diagnostic sur le Sida [Abidjan, Côte d'Ivoire] (CeDreS), Centre Hospitalier Universitaire de Treichville [Abidjan, Côte d'Ivoire] (CHU de Treichville), Centre d’Infectiologie Charles-Mérieux, Université d’Antananarivo - Madagascar, Université d'Antananarivo, CHU d’Antananarivo, Université de Fianarantsoa, University Hospital Tambohobe, Wellcome Centre for Infectious Diseases Research in Africa (CIDRI-Africa), Institute of Infectious Disease and Molecular Medicine, Department of Medicine, University of Cape Town, The Francis Crick Institute [London], Imperial College London, Mbarara University of Science and Technology [Mbarara] (MUST), Recherches Translationnelles sur le VIH et les maladies infectieuses endémiques et émergentes (TransVIHMI), Institut de Recherche pour le Développement (IRD)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Montpellier (UM), Hôpital Saint-André, CHU Bordeaux [Bordeaux], Institut National de la Santé et de la Recherche Médicale, and Agence Nationale de Recherches sur le Sida et les Hépatites Virales
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Model organisms ,Microbiology (medical) ,Human Biology & Physiology ,Science & Technology ,FOS: Clinical medicine ,Immunology ,Capacity building ,HIV ,1103 Clinical Sciences ,Infectious Disease ,Tuberculous meningitis ,INTENSE-TBM ,Clinical research ,Infectious Diseases ,STRENGTHENING CAPACITY ,[SDV.MHEP.MI]Life Sciences [q-bio]/Human health and pathology/Infectious diseases ,PARTNERSHIPS ,1107 Immunology ,Africa ,INTENSE-TBM Group ,[SDV.SPEE]Life Sciences [q-bio]/Santé publique et épidémiologie ,1115 Pharmacology and Pharmaceutical Sciences ,Life Sciences & Biomedicine ,HEALTH RESEARCH - Abstract
Tuberculous meningitis (TBM) is the most severe and disabling form of tuberculosis (TB), with at least 100,000 cases per year and a mortality rate of up to 50% in individuals co-infected with human immunodeficiency virus type 1 (HIV-1). To evaluate the efficacy and safety of an intensified anti-tubercular regimen and an anti-inflammatory treatment, the INTENSE-TBM project includes a phase III randomised clinical trial (TBM-RCT) in four countries in sub-Saharan Africa (SSA). Within this framework, we designed a comprehensive capacity-building work package ensuring all centres had, or would acquire, the ability to conduct the TBM-RCT and developing a network of skilled researchers, clinical centres and microbiology laboratories. Here, we describe these activities, identify strengths/challenges and share tools adaptable to other projects, particularly in low- and lower-middle income countries with heterogeneous settings and during the coronavirus disease 2019 (COVID-19) pandemic. Despite major challenges, TBM-RCT initiation was achieved in all sites, promoting enhanced local healthcare systems and encouraging further clinical research in SSA. In terms of certified trainings, the achievement levels were 95% (124/131) for good clinical practice, 91% (39/43) for good clinical laboratory practice and 91% (48/53) for infection prevention and control. Platform-based research, developed as part of capacity-building activities for specific projects, may be a valuable tool in fighting future infectious diseases and in developing high-level research in Africa.The INTENSE-TBM project aimed to design a comprehensive work-package on capacity building, ensuring all centres would acquire the ability to conduct a phase III randomised clinical trial on TBM in sub-Saharan Africa, to reduce tuberculous meningitis mortality and morbidity in patients with/without HIV-1 co-infection. Therefore, the INTENSE-TBM project is an example of how an international clinical research consortium can provide opportunities to enhance local capacity building and promote centres without previous experience in clinical research. This article provides practical approaches for implementing effective capacity-building programmes. We highlight how to overcome limitations imposed by the COVID-19 pandemic to successfully complete clinics, laboratory set-ups and personnel training, so as to optimise resources and empower African institutions on a local level. At the same time, our experience shows how capacity-building programmes can deliver long-lasting impact that extends beyond the original aims of the project (e.g. HIV and TB), and support local health systems in fighting other infectious disease (e.g. COVID-19). Research projects in low- and lower-middle income countries with heterogeneous settings could stand to benefit the most.
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- 2022
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45. Polygenic Risk Scores for Prediction of Subclinical Coronary Artery Disease in Persons With Human Immunodeficiency Virus (HIV): The Swiss HIV Cohort Study
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Isabella C, Schoepf, Christian W, Thorball, Helen, Kovari, Bruno, Ledergerber, Ronny R, Buechel, Alexandra, Calmy, Rainer, Weber, Philipp A, Kaufmann, René, Nkoulou, Johannes M, Schwenke, Dominique L, Braun, Jacques, Fellay, Philip E, Tarr, and S, Yerly
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Microbiology (medical) ,Infectious Diseases - Abstract
Background In people with human immunodeficiency virus (HIV) (PWH), individual polygenic risk scores (PRSs) are associated with coronary artery disease (CAD) events. Whether PRSs are associated with subclinical CAD is unknown. Methods In Swiss HIV Cohort Study participants of European descent, we defined subclinical CAD as presence of soft, mixed, or high-risk plaque (SMHRP) on coronary computed tomography (CT) angiography, or as participants in the top tertile of the study population's coronary artery calcium (CAC) score, using noncontrast CT. We obtained univariable and multivariable odds ratios (ORs) for subclinical CAD endpoints based on nongenetic risk factors, and validated genome-wide PRSs built from single nucleotide polymorphisms associated with CAD, carotid intima-media thickness (IMT), or longevity in the general population. Results We included 345 genotyped participants (median age, 53 years; 89% male; 96% suppressed HIV RNA); 172 and 127 participants had SMHRP and CAC, respectively. CAD-associated PRS and IMT-associated PRS were associated with SMHRP and CAC (all P < .01), but longevity PRS was not. Participants with unfavorable CAD-PRS (top quintile) had an adjusted SMHRP OR = 2.58 (95% confidence interval [CI], 1.18–5.67), and a CAC OR = 3.95 (95% CI, 1.45–10.77) vs. bottom quintile. Unfavorable nongenetic risk (top vs. bottom quintile) was associated with adjusted SMHRP OR = 24.01 (95% CI, 9.75–59.11), and a CAC-OR = 65.07 (95% CI, 18.48–229.15). Area under the receiver operating characteristic curve increased when we added CAD-PRS to nongenetic risk factors (SMHRP: 0.75 and 0.78, respectively; CAC: 0.80 and 0.83, respectively). Conclusions In Swiss PWH, subclinical CAD is independently associated with an individual CAD-associated PRS. Combining nongenetic and genetic cardiovascular risk factors provided the most powerful subclinical CAD prediction.
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- 2022
46. Revealing viral and cellular dynamics of HIV-1 at the single-cell level during early treatment periods
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Fabian Otte, Yuepeng Zhang, Julian Spagnuolo, Alexander Thielen, Martin Däumer, Carsten Wiethe, Marcel Stoeckle, Katharina Kusejko, Florian Klein, Karin J. Metzner, Thomas Klimkait, I. Abela, K. Aebi-Popp, A. Anagnostopoulos, M. Battegay, E. Bernasconi, D.L. Braun, H.C. Bucher, A. Calmy, M. Cavassini, A. Ciuffi, G. Dollenmaier, M. Egger, L. Elzi, J. Fehr, J. Fellay, H. Furrer, C.A. Fux, H.F. Günthard, A. Hachfeld, D. Haerry, B. Hasse, H.H. Hirsch, M. Hoffmann, I. Hösli, M. Huber, D. Jackson-Perry, C.R. Kahlert, L. Kaiser, O. Keiser, T. Klimkait, R.D. Kouyos, H. Kovari, K. Kusejko, N. Labhardt, K. Leuzinger, B. Martinez de Tejada, C. Marzolini, K.J. Metzner, N. Müller, J. Nemeth, D. Nicca, J. Notter, P. Paioni, G. Pantaleo, M. Perreau, A. Rauch, L. Salazar-Vizcaya, P. Schmid, R. Speck, M. Stöckle, P. Tarr, A. Trkola, G. Wandeler, M. Weisser, and S. Yerly
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Genetics ,Radiology, Nuclear Medicine and imaging ,Biochemistry, Genetics and Molecular Biology (miscellaneous) ,Biochemistry ,Computer Science Applications ,Biotechnology - Published
- 2023
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47. Rôle sexuellement dimorphique du récepteur ERα dans les régulations physiologiques hépatiques
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B. Tramunt, A. Alvarez-Tena, N. Grandgeorge, M.L. Calmy, T. Fougeray, M. Regnier, A. Fougerat, A. Polizzi, M. Guillaume, H. Duez, C. Postic, H. Guillou, A. Montagner, and P. Gourdy
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Endocrinology ,Endocrinology, Diabetes and Metabolism ,General Medicine - Published
- 2022
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48. Dexamethasone exposure in normal-weight and obese hospitalized COVID-19 patients: An observational exploratory trial
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Kenza Abouir, Pauline Gosselin, Stéphane Guerrier, Youssef Daali, Jules Desmeules, Olivier Grosgurin, Jean‐Luc Reny, Caroline Samer, Alexandra Calmy, and Kuntheavy Roseline Ing Lorenzini
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Male ,General Neuroscience ,Humans ,Female ,General Medicine ,Obesity ,Prospective Studies ,General Pharmacology, Toxicology and Pharmaceutics ,General Biochemistry, Genetics and Molecular Biology ,Dexamethasone ,Body Mass Index ,COVID-19 Drug Treatment - Abstract
During the latest pandemic, the RECOVERY study showed the benefits of dexamethasone (DEX) use in COVID-19 patients. Obesity has been proven to be an independent risk factor for severe forms of infection, but little information is available in the literature regarding DEX dose adjustment according to body weight. We conducted a prospective, observational, exploratory study at Geneva University Hospitals to assess the impact of weight on DEX pharmacokinetics (PK) in normal-weight versus obese COVID-19 hospitalized patients. Two groups of patients were enrolled: normal-weight and obese (body mass index [BMI] 18.5-25 and30 kg/m
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- 2022
49. An Approach to Quantifying the Interaction between Behavioral and Transmission Clusters
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Luisa, Salazar-Vizcaya, Katharina, Kusejko, Huldrych F, Günthard, Jürg, Böni, Karin J, Metzner, Dominique L, Braun, Dunja, Nicca, Enos, Bernasconi, Alexandra, Calmy, Katharine E A, Darling, Gilles, Wandeler, Roger D, Kouyos, Andri, Rauch, and The Swiss Hiv Cohort Study
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Cohort Studies ,Male ,Prevalence ,COVID-19 ,Humans ,HIV Infections ,Hepacivirus ,Homosexuality, Male ,Hepatitis C ,Phylogeny - Abstract
We hypothesize that patterns of sexual behavior play a role in the conformation of transmission networks, i.e., the way you behave might influence whom you have sex with. If that was the case, behavioral grouping might in turn correlate with, and potentially predict transmission networking, e.g., proximity in a viral phylogeny. We rigorously present an intuitive approach to address this hypothesis by quantifying mapped interactions between groups defined by similarities in sexual behavior along a virus phylogeny while discussing power and sample size considerations. Data from the Swiss HIV Cohort Study on condom use and hepatitis C virus (HCV) sequences served as proof-of-concept. In this case, a strict inclusion criteria contrasting with low HCV prevalence hindered our possibilities to identify significant relationships. This manuscript serves as guide for studies aimed at characterizing interactions between behavioral patterns and transmission networks. Large transmission networks such as those of HIV or COVID-19 are prime candidates for applying this methodological approach.
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- 2022
50. Therapeutic anticoagulation to prevent thrombosis, coagulopathy, and mortality in severe COVID-19: The Swiss COVID-HEP randomized clinical trial
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Marc Blondon, Sara Cereghetti, Jérôme Pugin, Christophe Marti, Pauline Darbellay Farhoumand, Jean‐Luc Reny, Alexandra Calmy, Christophe Combescure, Lucia Mazzolai, Olivier Pantet, Zied Ltaief, Marie Méan, Sara Manzocchi Besson, Séverin Jeanneret, Hans Stricker, Helia Robert‐Ebadi, Pierre Fontana, Marc Righini, and Alessandro Casini
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Hematology - Abstract
Hospitalized patients with COVID-19 suffered initially from high rates of venous thromboembolism (VTE), with possible associations between therapeutic anticoagulation and better clinical outcomes in observational studies.To test whether therapeutic anticoagulation improves clinical outcomes in severe COVID-19.In this multicenter, open-label, randomized controlled trial, we recruited acutely ill medical COVID-19 patients with D-dimer1000 ng/ml or critically ill COVID-19 patients in four Swiss hospitals, from April 2020 until June 2021, with a 30-day follow-up. Participants were randomized to in-hospital therapeutic anticoagulation versus low-dose anticoagulation in acutely ill participants/intermediate-dose anticoagulation in critically ill participants, with enoxaparin or unfractionated heparins. The primary outcome was a centrally adjudicated composite of 30-day all-cause mortality, VTE, arterial thrombosis, and disseminated intravascular coagulopathy (DIC), with screening for proximal deep vein thrombosis.Among 159 participants, 55.3% were critically ill and 94.3% received corticosteroids. Before study inclusion, pulmonary embolism had been excluded in 71.7%. The primary outcome occurred in 4/79 participants randomized to therapeutic anticoagulation and 4/80 to low/intermediate anticoagulation (5.4% vs. 5.0%; risk difference +0.4%; adjusted hazard ratio 0.76, 95% confidence interval 0.18-3.21), including three deaths in each group. All primary outcomes and major bleeding (Among patients with severe COVID-19 treated with corticosteroids and with exclusion of pulmonary embolism at hospital admission for most, risks of mortality, thrombotic outcomes, and DIC were low at 30 days. The lack of benefit of therapeutic anticoagulation was too imprecise for definite conclusions.
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- 2022
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