Publications by authors named "Marc Van Der Valk"

Background: Real-world data showing the long-term effectiveness of long-acting injectable cabotegravir and rilpivirine are scarce. We assessed the effectiveness of cabotegravir and rilpivirine in all individuals who switched to cabotegravir and rilpivirine in the Netherlands.

Methods: We used data from the ATHENA cohort, an ongoing observational nationwide HIV cohort in the Netherlands.

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Introduction: Oral pre-exposure prophylaxis (PrEP) prevents Human Immunodeficiency Virus (HIV) acquisition. In the Netherlands, PrEP is accessible through the national PrEP program (NPP) or general practitioners (GP). Still, some men who have sex with men (MSM) entering HIV care indicated having PrEP experience prior to diagnosis.

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Background: Individuals who have recently acquired HIV represent a unique population because the time frame since HIV acquisition is relatively short and identification of missed HIV prevention opportunities is, therefore, closer to real time and less subject to recall bias. Identifying prevention measures used and missed opportunities for using them, can help stop further HIV transmission.

Objectives: This systematic review aims to synthesise current global evidence on uptake of HIV prevention methods among people with recently acquired HIV from 2007, the year that the concept of ART as a prevention method was first introduced.

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Background: People with HIV (PWH) experience a higher burden of ageing-associated comorbidities, the underlying mechanisms of which remain to be fully elucidated. We aimed to identify profiles based on immune, inflammatory, and ageing biomarkers in blood from PWH and controls, and explore their association with total comorbidities over time.

Methods: Latent profile analysis was used to construct biomarker profiles in AGEhIV cohort participants (94 with well-controlled HIV on antiretroviral therapy (ART) and 95 controls without HIV) using baseline measurements of selected biomarkers.

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Background: Historically, hepatitis C virus (HCV) was difficult to treat among people with HIV. However, treatment with direct-acting antivirals (DAAs) results in 90%-95% of people being cured. There is a need to understand why a proportion of people are not cured.

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Introduction: Anti-retroviral therapy (ART) simplification strategies are needed for treatment-experienced people with HIV (PWH) and multidrug-resistant viruses. These individuals are commonly treated with boosted ART regimens and are thereby at risk for harmful drug-drug interactions (DDI). In this trial, we aim to assess the efficacy of the combination doravirine, dolutegravir and lamivudine (DOR/DTG/3TC) among people with a history of virological failure who receive boosted ART.

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Introduction: HIV replication leads to a change in lymphocyte phenotypes that impairs immune protection against opportunistic infections. We examined current HIV replication as an independent risk factor for tuberculosis (TB).

Methods: We included people living with HIV from 25 European cohorts 1983-2015.

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Background: Little is known about the effect of hepatitis C virus (HCV) treatment on sexual risk behavior among men who have sex with men (MSM) with HIV by treatment type (interferon [IFN]-based vs direct-acting antiviral [DAA]-based).

Setting: MSM with HIV and recently acquired HCV infection enrolled in the MSM Observational Study of Acute Infection with hepatitis C (MOSAIC) cohort.

Methods: Using data from 2009 to 2018, we evaluated risk behavior through a validated HCV risk score (where ≥2 indicated high risk) and its individual risk behaviors.

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Article Synopsis
  • In the Netherlands, since the introduction of HIV pre-exposure prophylaxis (PrEP) in 2019, about 16% of new HIV diagnoses among men who have sex with men (MSM) and transgender persons (TGP) reported prior PrEP use.
  • Many individuals who did not use PrEP cited reasons like low risk perception and lack of access, highlighting barriers to its uptake.
  • The study identified an increase in PrEP-associated mutations linked to resistance in new infections since 2019, but found no evidence of these mutations being transmitted to others.
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Introduction: CARISEL is an implementation-effectiveness "hybrid" study examining the perspectives of people living with HIV-1 (patient study participants [PSPs]) on cabotegravir (CAB) plus rilpivirine (RPV) long-acting (LA) dosed every 2 months (Q2M) across 5 European countries.

Methods: PSPs completed questionnaires on acceptability (Acceptability of Intervention Measure), appropriateness (Intervention Appropriateness Measure), and feasibility (Feasibility of Intervention Measure) at their first (Month [M] 1), third (M4), and seventh (M12) injection visits. Semistructured qualitative interviews were also conducted.

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Background: Currently, real-world data on doravirine are scarce. In a national prospective cohort, we assessed the effectiveness and tolerability of switching to doravirine-based antiretroviral therapy (ART) in people with HIV.

Methods: We did a nationwide, matched, prospective cohort study of people with HIV without previous virological failure and stable for at least 12 months on non-doravirine-containing triple or dual ART switching to doravirine before Sept 1, 2020 (exposed group).

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Background: Understanding the reasons for and consequences of bodyweight change in people living with HIV initiating antiretroviral therapy (ART) is crucial to optimising long-term health and wellbeing. We aimed to examine bodyweight trends and associated factors among individuals with well estimated dates of HIV-1 seroconversion.

Methods: In this cohort study, we pooled retrospective data from clinical records of participants in CASCADE aged 16 years and older recruited from clinics in France, Greece, the Netherlands, Spain, Sweden, the UK, and Canada.

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Background: In 2019, a 5-year pre-exposure prophylaxis (PrEP) program started in the Netherlands, in which up to 8500 men who have sex with men (MSM) can obtain PrEP and 3-monthly consultations with HIV/STI testing.

Setting: We assessed the impact of the PrEP program on transmission of HIV and Neisseria gonorrhea (NG) among MSM in the Netherlands and examined prospective variations of the program after 2024.

Methods: We used an agent-based model to estimate the effect of the PrEP program.

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Introduction: Transgender women are at increased risk of acquiring HIV. Earlier studies reported lower retention in HIV care, antiretroviral therapy uptake, adherence and viral suppression. We assessed the stages of the HIV care continuum of transgender women in the Netherlands over an 11-year period.

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Background: Little is known about the risk of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) Omicron infection in people with human immunodeficiency virus (HIV; PWH) with vaccine-induced or hybrid immunity. We assessed the incidence of Omicron infection in 209 AGEIV coronavirus disease 2019 substudy participants with well-controlled HIV on antiretroviral therapy and 280 comparable controls, who had received at least the primary vaccination series.

Methods: From September 2020 onward, participants were assessed every 6 months for the incidence of SARS-CoV-2 infection, per SARS-CoV-2 nucleocapsid antibody assay or self-reported positive antigen or polymerase chain reaction test.

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Article Synopsis
  • - The study examined how well Dutch HIV treating physicians followed DHHS guidelines when prescribing antiretroviral therapy (ART) and the adoption of generic multi-tablet regimens (gMTRs) between 2016 and 2020.
  • - Compliance with DHHS recommendations improved, with integrase inhibitor regimens rising from 77.3% to 87.8%, and the overall adherence to recommended regimens from 82.8% to 90.9% during this period.
  • - While the use of single-tablet regimens (STRs) initially dominated, their usage dropped from 81.3% to 60.3%, while gMTRs increased from 17.8%
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Article Synopsis
  • CAB + RPV LA is an HIV-1 treatment regimen given every 2 months that was evaluated in the CARISEL study for its effectiveness and patient outcomes after 12 months.
  • The study involved 430 patients who switched from daily oral therapy to this long-acting treatment, and the majority maintained low viral loads, with only a small percentage showing signs of treatment failure.
  • Overall, CAB + RPV LA was found to be safe, well-tolerated, and effective in keeping patients' HIV levels suppressed.
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Background: Men and women with a migration background comprise an increasing proportion of incident human immunodeficiency virus (HIV) cases across Western Europe.

Methods: To characterize sources of transmission in local transmission chains, we used partial HIV consensus sequences with linked demographic and clinical data from the opt-out AIDS Therapy Evaluation in the Netherlands (ATHENA) cohort of people with HIV in the Netherlands and identified phylogenetically and epidemiologically possible HIV transmission pairs in Amsterdam. We interpreted these in the context of estimated infection dates, and quantified population-level sources of transmission to foreign-born and Dutch-born Amsterdam men who have sex with men (MSM) within Amsterdam transmission chains.

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Article Synopsis
  • The study explored the impact of newer antiretroviral drugs (ARVs) on chronic liver enzyme elevation (cLEE) in people with HIV who started ARVs after January 1, 2012.
  • Over the follow-up period, 11.3% of participants experienced cLEE, with higher rates observed in the first year but no cumulative effect from ARV use over time.
  • Notably, the use of non-nucleoside reverse transcriptase inhibitors (NNRTIs) and tenofovir disoproxil fumarate (TDF) increased the risk of cLEE, while darunavir (DRV) appeared to reduce the risk.
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Objective: Interruptions in care of people with HIV (PWH) on antiretroviral therapy (ART) are associated with adverse outcomes, but most studies have relied on composite outcomes. We investigated whether mortality risk following care interruptions differed from mortality risk after first starting ART.

Design: Collaboration of 18 European and North American HIV observational cohort studies of adults with HIV starting ART between 2004 and 2019.

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Background: Confirming the efficacy of dolutegravir/lamivudine in clinical practice solidifies recommendations on its use.

Methods: Prospective cohort study (DUALING) in 24 human immunodeficiency virus (HIV) treatment centers in the Netherlands. HIV RNA-suppressed cases were on triple-drug antiretroviral regimens without prior virological failure or resistance and started dolutegravir/lamivudine.

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Article Synopsis
  • The study investigates HCV reinfection rates among HIV-positive individuals after the introduction of direct-acting antivirals (DAAs) and determines how much of the new HCV cases are due to reinfections.
  • Using data from six international cohorts, researchers analyzed the incidence of HCV reinfection before and after DAAs became widely available, focusing on patient demographics and reinfection timelines.
  • Results showed that the incidence of HCV reinfection remained stable before the introduction of DAAs, with a follow-up of 6144 HIV-positive participants over more than 17,000 person-years.
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Background: Long-acting (LA) injectable therapy with cabotegravir (CAB) and rilpivirine (RPV) is currently used as maintenance treatment for human immunodeficiency virus type 1, and has a low risk for virological failure (VF). Although the risk is low, the circumstances and impact of VF in the real-world setting merit further evaluation.

Methods: We performed an in-depth clinical, virological, and pharmacokinetic analysis on the reasons behind and the impact of VF during LA CAB/RPV therapy in 5 cases from the Netherlands.

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Article Synopsis
  • - The study aimed to estimate the prevalence of chronic Hepatitis C Virus (cHCV) infections in EU/EEA countries for the year 2019, using a method called multi-parameter evidence synthesis (MPES) to analyze data from various sources.
  • - In 29 out of 30 EU/EEA countries, the overall cHCV prevalence was found to be 0.50%, with notably higher rates in the eastern EU/EEA (0.88%), and over a third of cases were linked to people who inject drugs (PWID).
  • - The findings indicate that while cHCV prevalence is generally low, targeted efforts are needed, particularly in eastern regions and among PWID, to
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Background: Among people living with HIV and hepatitis C virus (HCV), people who inject drugs (PWID) have historically experienced higher mortality rates. Direct-acting antivirals (DAA), which have led to a 90 % HCV cure rate independently of HIV co-infection, have improved mortality rates. However, DAA era mortality trends among PWID with HIV/HCV remain unknown.

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