Publications by authors named "Ly P Sun"

Background: HIV self-testing (HIVST) is recommended by the World Health Organization, but implementation remains limited. This cross-sectional study evaluated HIVST uptake among female entertainment workers (EWs), men who have sex with men (MSM), and transgender women in Phnom Penh, Cambodia, to inform national implementation.

Methods: Between December 2018 and September 2019, individuals reached through community outreach or via online advertising were offered HIVST or referrals to facility-based testing.

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Introduction: Viral load (VL) testing is still challenging to monitor treatment responses of antiretroviral therapy (ART) for HIV treatment programme in Asia. We assessed the association between routine VL testing and virological failure (VF) and determine factors associated with switching to second-line regimen.

Methods: Among 21 sites from the TREAT Asia HIV Observational Database (TAHOD), people living with HIV (PLHIV) aged ≥18 years initiating ART from 2003 to 2021 were included.

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Liver disease is a growing burden among people living with HIV (PLHIV) in resource-limited settings. As an indicator of liver disease, risk factors of high alanine aminotransferase (ALT) and cirrhosis were assessed among PLHIV in the TREAT Asia HIV Observational Database (TAHOD). Patients on combination antiretroviral therapy (cART) with a pre-cART ALT measurement and at least one follow-up ALT measurement were included.

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Background: Non-Asian body mass index (BMI) classifications are commonly used as a risk factor for high fasting blood glucose (FBG). We investigated the incidence and factors associated with high FBG among people living with HIV in the Asia-Pacific region, using a World Health Organization BMI classification specific to Asian populations.

Methods: This study included people living with HIV enrolled in a longitudinal cohort study from 2003 to 2019, receiving antiretroviral therapy (ART), and without prior tuberculosis.

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The use of holding regimens for people living with HIV (PLWH) without effective antiretroviral options can have effects on outcomes and future treatment options. We aimed to investigate the use of holding regimens for PLWH in Asian countries. Data from adults enrolled in routine HIV care in IeDEA Asia-Pacific cohorts were included.

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Background: Although the prevalence and mortality of hepatitis is high in the Asia-Pacific region, few studies are available on the diagnosis, treatment, and cure rates for viral hepatitis among people living with HIV in this area. This study aims to report the cascade of care (CoC) for hepatitis B (HBV) and C (HCV) among people living with HIV receiving combined antiretroviral therapy (ART).

Methods: Patients enrolled in the TREAT Asia HIV Observational Database Low Intensity Transfer (TAHOD-LITE) cohort, on ART, and with follow-up data from 2010 to 2019 were included.

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Background: The transition to dolutegravir-containing antiretroviral therapy (ART) in low- and middle-income countries (LMICs) was complicated by an initial safety signal in May 2018 suggesting that exposure to dolutegravir at conception was possibly associated with infant neural tube defects. On the basis of additional evidence, in July 2019, the World Health Organization recommended dolutegravir for all adults and adolescents living with HIV.

Objective: To describe dolutegravir uptake and disparities by sex and age group in LMICs.

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Objectives: We investigated weight changes following antiretroviral therapy (ART) initiation, the development of metabolic syndrome (MetS) and its association with all-cause mortality among Asian adults living with HIV.

Methods: Participants enrolled in a regional Asian HIV-infected cohort with weight and height measurements at ART initiation were eligible for inclusion in the analysis. Factors associated with weight changes and incident MetS (according to the International Diabetic Federation (IDF) definition) were analysed using linear mixed models and Cox regression, respectively.

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Background: Multi-month dispensing (MMD) is the mainstay mechanism for clinically stable people living with HIV in Cambodia to refill antiretroviral therapy (ART) every 3-6 months. However, less frequent ART dispensing through the community-based ART delivery (CAD) model could further reduce the clients' and health facilities' burden. While community-based services have been recognized as an integral component of HIV response in Cambodia, their role and effectiveness in ART delivery have yet to be systematically assessed.

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Background: Cambodia is widely credited for its successful HIV epidemic control. However, in recent years there have been signs of increasing HIV prevalence among men who have sex with men (MSM) and transgender women (TGW). This paper reviews HIV epidemiological, social science and HIV program implementation studies conducted over the past 20 years to explore possible reasons for the rising HIV prevalence among these groups and to formulate recommendations for improved policies, HIV programmatic interventions and further research.

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Background: The World Health Organization recommends continuation with the failing second-line regimen if third-line option is not available. We investigated treatment outcomes among people living with HIV in Asia who continued with failing second-line regimens compared with those who had treatment modifications after failure.

Methods: Treatment modification was defined as a change of two antiretrovirals, a drug class change or treatment interruption (TI), all for >14 days.

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Background: Comprehensive treatment and clinical management are central to improving outcomes for people living with HIV (PLHIV). We explored trends in HIV clinical care, treatment outcomes, and chronic kidney disease (CKD) and diabetes monitoring.

Methods: We included patients ≥18 years in care at ten clinical sites in eight Asian countries.

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HIV-related enacted stigma and social problems may increase risk for depression and/or behavioral problems among adolescents and young adults with perinatal HIV(AYA-PHIV), yet few studies have explored stigma in AYA-PHIV residing in low-to-middle income regions, including Southeast Asia. We assessed HIV-related enacted stigma and social problems in AYA-PHIV who participated in the RESILIENCE study (clinicaltrials.gov identification: U19AI53741) in Thailand and Cambodia using specific questions during structured in-person interviews.

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With political will, modest financial investment and effective technical assistance, public sector hepatitis C virus (HCV) programmes can be established in low- and middle-income countries as a first step towards elimination. Seven countries, with support from the Clinton Health Access Initiative (CHAI) and partners, have expanded access to HCV treatment by combining programme simplification with market shaping to reduce commodity prices. CHAI has supported a multipronged approach to HCV programme launch in Cambodia, India, Indonesia, Myanmar, Nigeria, Rwanda and Vietnam including pricing negotiations with suppliers, policy development, fast-track registrations of quality-assured generics, financing advocacy and strengthened service delivery.

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Background: We validated the Data collection on Adverse events of anti-HIV Drugs (D:A:D) full-risk and short-risk score models for chronic kidney disease (CKD) in the Asian HIV cohorts.

Settings: A validation study among people living with HIV (PLHIV) aged ≥18 years among the cohorts in the Asia-Pacific region.

Methods: PLHIV with a baseline estimated glomerular filtration rate > 60 mL/min/1.

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Introduction: The clinical relevance of low-level viraemia (LLV) and virological outcomes among children living with HIV (CLHIV) remains controversial. This study aimed to determine the impact of LLV on virological failure (VF) among Asian CLHIV on first-line combination antiretroviral therapy (cART).

Methods: CLHIV aged <18 years, who were on first-line cART for ≥12 months, and had virological suppression (two consecutive plasma viral load [pVL] <50 copies/mL) were included.

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Background: Combination antiretroviral therapy (cART) failure is a major threat to human immunodeficiency virus (HIV) programs, with implications for individual- and population-level outcomes. Adolescents with perinatally acquired HIV infection (PHIVA) should be a focus for treatment failure given their poorer outcomes compared to children and adults.

Methods: Data (2014-2018) from a regional cohort of Asian PHIVA who received at least 6 months of continuous cART were analyzed.

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Background: This study investigated survival in people living with HIV being followed-up from 5 and 10 years after antiretroviral therapy (ART) initiation in a multi-country Asian cohort.

Methods: We included patients in follow-up >5 years after ART initiation. Factors associated with mortality beyond 5 and 10 years on ART were analysed using competing risk regression with time-updated variables.

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Background: Perinatally HIV-infected adolescents (PHIVA) are an expanding population vulnerable to loss to follow-up (LTFU). Understanding the epidemiology and factors for LTFU is complicated by varying LTFU definitions.

Setting: Asian regional cohort incorporating 16 pediatric HIV services across 6 countries.

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Background: Children with perinatal HIV (pHIV) may display distinct long-term cognitive phenotypes. We used group-based trajectory modeling to identify clusters of children with pHIV after similar developmental trajectories and predictors of belonging to select cognitive trajectory groups.

Methods: Participants included children, 4-17 years of age, with pHIV in Thailand and Cambodia.

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Background: Large numbers of perinatally HIV-infected (PHIV) children are aging into adolescence. We examined cognitive and behavioral outcomes in a longitudinal cohort of Asian youth.

Methods: We followed up 231 PHIV, 125 perinatally HIV-exposed, uninfected (HEU), and 138 HIV-unexposed, uninfected (HUU) adolescents (aged 10 years and older), matched by age/sex, in Thailand and Cambodia for 3 years.

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Introduction: Cotrimoxazole (CTX) is recommended as prophylaxis against Pneumocystis jiroveci pneumonia, malaria and other serious bacterial infections in HIV-infected patients. Despite its in vitro activity against Mycobacterium tuberculosis, the effects of CTX preventive therapy on tuberculosis (TB) remain unclear.

Methods: Adults living with HIV enrolled in a regional observational cohort in Asia who had initiated combination antiretroviral therapy (cART) were included in the analysis.

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Background: We aimed to project the 10-year future incidence of cardiovascular disease (CVD) and model several intervention scenarios based on a multi-site Asian HIV-positive cohort.

Methods: Analyses were based on patients recruited to the TREAT Asia HIV Observational Database (TAHOD), consisting of 21 sites in 12 countries. Patients on triple antiretroviral therapy (ART) were included if they were alive, without previous CVD, and had data on CVD risk factors.

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Introduction: Comorbidities including diabetes mellitus (DM) among people living with HIV (PLHIV) are of increasing clinical concerns in combination antiretroviral therapy (cART) era. We aimed to determine the incidence and risk factors of new-onset DM among PLHIV in Asian settings.

Methods: PLHIV from a regional observational cohort without DM prior to antiretroviral therapy (ART) initiation were included in the analysis.

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Background: Mycobacterium avium complex prophylaxis is recommended for patients with advanced HIV infection. With the decrease in incidence of disseminated Mycobacterium avium complex infection and the availability of antiretroviral therapy (ART), the benefits of macrolide prophylaxis were investigated. This study examined the impact of macrolide prophylaxis on AIDS-defining conditions and HIV-associated mortality in a cohort of HIV-infected patients on ART.

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