Publications by authors named "Simone Lanini"

Although in vitro studies suggest that neutralization by monoclonal antibodies (mAbs) against SARS CoV2 Omicron sub lineages is reduced, in vivo virological response data are lacking. MONET (EudraCT: 2021-004188-28) was multi-centric phase 4 open-label parallel randomized clinical trial, conducted in Italy over 2022-2023, to assess the efficacy of sotrovimab (SOT), tixagevimab/cilgavimab (TIX/CIL) and Nirmatrelvir/ritonavir (NMV/r), in outpatients at high risk for severe COVID-19. The outcome (secondary in the trial protocol) was SARS-CoV-2 variation in cycle threshold (CT) values over the first 7 days (D1-D7) of the trial.

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Introduction: Data on the burden of advanced HIV disease (AHD) among people with HIV (PWH) already in care remain limited in high-income settings.

Methods: We included all PWH from the Icona Cohort who started ART between 2004 and 2024, with CD4≥200 cells/mm and no prior AIDS-defining event (ADE). Probability of AHD (CD4<200 cell/mm or ADE) occurring ≥3 months after ART initiation was estimated by Kaplan-Meier curves.

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Background: Understanding the evolution and dynamics of deaths in people with HIV (PWH) is crucial to tailor interventions aiming at improving PWH long-term well-being. We aimed to assess all-cause and cause-specific mortality in PWH in Italy.

Methods: PWH enrolled before antiretroviral start from Icona cohort (78 Italian HIV clinics) between 1997 and 2021 (last observation December 2022) were included.

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Objectives: No previous studies specifically explored the switch from efavirenz to bictegravir (BIC)-containing three-drug antiretroviral regimens. This study aimed to evaluate the efficacy and safety outcomes of a treatment switch from efavirenz/emtricitabine/tenofovir disoproxil fumarate (EFV/FTC/TDF) given once daily (OD) or on alternate days (ATAD) to BIC/emtricitabine/tenofovir alafenamide (BIC/FTC/TAF) in virologically suppressed people with HIV (PWH).

Methods: A pilot, single-arm, prospective study was conducted.

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Studies comparing all available strategies for the early treatment of mild-to-moderate COVID-19 during the Omicron era are lacking. We included people with mild-to-moderate COVID-19 and at high risk of progressing to severe disease attending five outpatient clinics in Italy over 2022-2023. The primary outcome was the proportion of participants who experienced Day-30 hospitalization due to COVID-19 or death.

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With advances in antiretroviral therapy for HIV treatment, newer drug combinations provide improved efficacy, safety, and compliance. This study evaluates switching to a regimen of doravirine (DOR), tenofovir disoproxil fumarate (TDF), and lamivudine (3TC) in a cohort of people living with HIV (PLWH). this Italian retrospective study included 426 PLWH who switched from rilpivirine (RPV)/TDF/emtricitabine (FTC) to DOR/3TC/TDF.

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Beta-lactams are extensively used antibiotics known for their safety and effectiveness. The rise in patients who receive care in outpatient settings has increased the interest in subcutaneous administration (SA). The aim of the study is to assess the safety and pharmacokinetic (PK) profiles of SA of beta-lactams compared with other routes.

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Objective: This study measured the effect of renal function on the plasma concentrations of ceftazidime and avibactam in critically ill patients. We also sought to measure the concentration ratio of ceftazidime to avibactam.

Methods: This was a cohort study at a tertiary referral centre in Italy, on patients treated with continuous infusion of ceftazidime-avibactam (CAZ-AVI) between November 2019 and December 2023.

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Background: The clinical effectiveness of early therapies for mild-to-moderate COVID-19, comparing antivirals and monoclonal antibodies (mAbs) during the Omicron era, has not been conclusively assessed through a post-approval comparative trial. We present a pooled analysis of two randomized clinical trials conducted during Omicron waves.

Methods: The MANTICO2/MONET trial is a pooled analysis of two multicentric, independent, phase-4, three-arm, superiority, randomized, open-label trials.

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Background: Severe and prolonged mpox courses have been described during the 2022-2023 outbreak. Identifying predictors of severe evolution is crucial for improving management and therapeutic strategies. We explored the predictors of mpox severity and tested the association between mpox severity and viral load in biological fluids.

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Article Synopsis
  • The study focused on the effectiveness of tixagevimab/cilgavimab (T/C) as pre-exposure prophylaxis (PrEP) in immunocompromised individuals, categorizing them into groups based on their COVID-19 history.
  • A total of 231 participants were included, with a significant portion having hematological diseases and receiving multiple vaccine doses; breakthrough infections (BTIs) occurred in 56 participants (24%) but were mostly mild to moderate.
  • Immune markers were measured over time, showing an initial increase in anti-RBD IgG antibodies at 3 months, a decline at 6 months, and low neutralizing antibodies, reinforcing T/C's clinical efficacy in reducing severe COVID-19
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Background: Pre-exposure vaccination with MVA-BN has been widely used against mpox to contain the 2022 outbreak. Many countries have defined prioritized strategies, administering a single dose to those historically vaccinated for smallpox, to achieve quickly adequate coverage in front of low supplies. Using epidemiological models, real-life effectiveness was estimated at approximately 36%-86%, but no clinical trials were performed.

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Background: we aim to investigate attitudes toward vaccination by analyzing empirical factors associated with vaccine acceptance in the Lazio region mpox vaccination (MpoxVax) campaign in Italy.

Methods: all subjects who accessed MpoxVax and signed the informed consent were prospectively enrolled in the MPOX-VAC Study and were asked to fill out an anonymous survey. Two endpoints were selected: 'delayed acceptance' and 'early acceptance', defined as access for vaccination >60 and ≤30 days from the vaccination campaign starting (VCS), respectively.

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Article Synopsis
  • The study investigates the decline of immune responses in people living with HIV (PLWH) after vaccination and booster doses, focusing on those with low CD4 counts (≤200 cells/mm).
  • It measured neutralizing antibodies and T cell responses at multiple time points to assess the effectiveness of the primary vaccine cycle and booster dose.
  • Results showed that those with low CD4 counts experienced a more significant drop in neutralizing antibodies, but booster doses increased these levels and maintained them longer against certain variants, even though T cell responses remained detectable across all groups.
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Background: A rapid ART initiation approach can be beneficial in people with advanced HIV disease, in consideration of their high morbidity and mortality. The aim of our study was to evaluate the feasibility, efficacy and safety of rapid ART start with BIC/FTC/TAF in this setting.

Methods: Pilot, single-centre, single-arm, prospective, phase IV clinical trial conducted in a tertiary Italian hospital.

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Background: Our aim was to estimate the rates of not achieving a robust/above-average humoral response to the COVID-19 mRNA vaccine in people living with HIV (PLWH) who received ≥2 doses and to investigate the role of the CD4 and CD4/CD8 ratio in predicting the humoral response.

Methods: We evaluated the humoral anti-SARS-CoV-2 response 1-month after the second and third doses of COVID-19 mRNA vaccine as a proportion of not achieving a robust/above-average response using two criteria: (i) a humoral threshold identified as a correlate of protection against SARS-CoV-2 (<90% vaccine efficacy): anti-RBD < 775 BAU/mL or anti-S < 298 BAU/mL, (ii) threshold of binding antibodies equivalent to average neutralization activity from the levels of binding (nAb titer < 1:40): anti-RBD < 870 BAU/mL or anti-S < 1591 BAU/mL. PLWH were stratified according to the CD4 count and CD4/CD8 ratio at first dose.

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Article Synopsis
  • The GRAd-COV2 vaccine, developed from a gorilla adenovirus, aims to enhance COVID-19 immunity with a focus on a stable spike protein.
  • In a phase 2 trial with 917 participants, the vaccine demonstrated good safety and strong immune responses, especially after a second dose.
  • The vaccine effectively generated a robust T cell response, particularly CD8 T cells, suggesting its potential for future genetic vaccine development in combating variants of concern.
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Tecovirimat is a treatment option for severe mpox, although randomized clinical trials are ongoing. The aim of the study is to assess the effect of tecovirimat on healing time and the extent of viral clearance by target trial emulation using observational data. Clinical and virological data of patients hospitalized for mpox were collected.

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Article Synopsis
  • Whole-genome sequencing (WGS) has been applied to analyze the mpox virus (MPXV) from a 2022 outbreak, focusing on long-term infections in individual patients.
  • Research involved 51 samples from five patients, revealing significant genetic changes in samples from two immunocompromised patients with advanced HIV-1, showcasing high intra-host variability and tissue-specific mutations.
  • No notable sequence differences were found in three patients with rapid viral clearance, indicating that MPXV can adapt within its host environment and may contribute to viral persistence and related clinical implications.
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Objectives: A pre-exposure vaccination campaign to prevent the spread of the mpox virus was initiated in Italy in August 2022. We explore the possible factors affecting the trend of mpox cases in an Italian region (Lazio) with a rapid roll-out of the vaccination campaign.

Methods: We estimated the impact of the communication and vaccination campaign by fitting a Poisson segmented regression model.

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To compare the detection of the SARS-CoV-2 Omicron variant in nasopharyngeal-swab (NPS) and oral saliva samples. 255 samples were obtained from 85 Omicron-infected patients. SARS-CoV-2 load was measured in the NPS and saliva samples by using Simplexa™ COVID-19 direct and Alinity m SARS-CoV-2 AMP assays.

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Background: Dysregulated systemic inflammation is the primary driver of mortality in severe coronavirus disease 2019 (COVID-19) pneumonia. Current guidelines favour a 7-10-day course of any glucocorticoid equivalent to dexamethasone 6 mg daily. A comparative randomised controlled trial (RCT) with a higher dose and a longer duration of intervention was lacking.

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