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Five-year trends in antiretroviral usage and drug costs in HIV-infected children in Thailand.

ABSTRACT: BACKGROUND:As antiretroviral treatment (ART) programs mature, data on drug utilization and costs are needed to assess durability of treatments and inform program planning. METHODS:Children initiating ART were followed up in an observational cohort in Thailand. Treatment histories from 1999 to 2009 were reviewed. Treatment changes were categorized as: drug substitution (within class), switch across drug class (non nucleoside reverse-transcriptase inhibitors (NNRTI) to/from protease inhibitor (PI)), and to salvage therapy (dual PI or PI and NNRTI). Antiretroviral drug costs were calculated in 6-month cycles (US$ 2009 prices). Predictors of high drug cost including characteristics at start of ART (baseline), initial regimen, treatment change, and duration on ART were assessed using mixed-effects regression models. RESULTS:Five hundred seven children initiated ART with a median 54 (interquartile range, 36-72) months of follow-up. Fifty-two percent had a drug substitution, 21% switched across class, and 2% to salvage therapy. When allowing for drug substitution, 78% remained on their initial regimen. Mean drug cost increased from $251 to $428 per child per year in the first and fifth year of therapy, respectively. PI-based and salvage regimens accounted for 16% and 2% of treatments prescribed and 33% and 5% of total costs, respectively. Predictors of high cost include baseline age ? 8 years, non nevirapine-based initial regimen, switch across drug class, and to salvage regimen (P < 0.005). CONCLUSIONS:At 5 years, 21% of children switched across drug class and 2% received salvage therapy. The mean drug cost increased by 70%. Access to affordable second- and third-line drugs is essential for the sustainability of treatment programs.

SUBMITTER: Collins I

PROVIDER: S-EPMC3744770 | biostudies-literature | 2013 Sep

REPOSITORIES: biostudies-literature

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Five-year trends in antiretroviral usage and drug costs in HIV-infected children in Thailand.

Collins Intira I Cairns John J Le Coeur Sophie S Pagdi Karin K Ngampiyaskul Chaiwat C Layangool Prapaisri P Borkird Thitiporn T Na-Rajsima Sathaporn S Wanchaitanawong Vanichaya V Jourdain Gonzague G Lallemant Marc M

Journal of acquired immune deficiency syndromes (1999) 20130901 1

<h4>Background</h4>As antiretroviral treatment (ART) programs mature, data on drug utilization and costs are needed to assess durability of treatments and inform program planning.<h4>Methods</h4>Children initiating ART were followed up in an observational cohort in Thailand. Treatment histories from 1999 to 2009 were reviewed. Treatment changes were categorized as: drug substitution (within class), switch across drug class (non nucleoside reverse-transcriptase inhibitors (NNRTI) to/from protease ...[more]

PMID: 23945253

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Project description:IntroductionEarly antiretroviral therapy (ART) has improved neurodevelopmental outcomes of HIV-infected (HIV-positive) children; however, little is known about the longer term outcomes in infants commencing early ART or whether temporary ART interruption might have long-term consequences. In the children with HIV early antiretroviral treatment (CHER) trial, HIV-infected infants ≤12 weeks of age with CD4 ≥25% were randomized to deferred ART (ART-Def); immediate time-limited ART for 40 weeks (ART-40W) or 96 weeks (ART-96W). ART was restarted in the time-limited arms for immunologic/clinical progression. Our objective was to compare the neurodevelopmental profiles in all three arms of Cape Town CHER participants.MethodsA prospective, longitudinal observational study was used. The Griffiths mental development scales (GMDS), which includes six subscales and a global score, were performed at 11, 20, 30, 42 and 60 months, and the Beery-Buktenica developmental tests for visual motor integration at 60 months. HIV-exposed uninfected (HEU) and HIV-unexposed (HU) children were enrolled for comparison. Mixed model repeated measures were used to compare groups over time, using quotients derived from standardized British norms.ResultsIn this study, 28 ART-Def, 35 ART-40W, 33 ART-96W CHER children, and 34 HEU and 39 HU controls were enrolled. GMDS scores over five years were similar between the five groups in all subscales except locomotor and general Griffiths (interaction p < 0.001 and p = 0.02 respectively), driven by early lower scores in the ART-Def arm. At 60 months, scores for all groups were similar in each GMDS scale. However, Beery visual perception scores were significantly lower in HIV-infected children (mean standard scores: 75.8 ART-Def, 79.8 ART-40W, 75.9 ART-96W) versus 84.4 in HEU and 90.5 in HU (p < 0.01)).ConclusionsEarly locomotor delay in the ART-Def arm resolved by five years. Neurodevelopmental outcomes at five years in HIV-infected children on early time-limited ART were similar to uninfected controls, apart from visual perception where HIV-infected children scored lower. Poorer visual perception performance warrants further investigation.

Project description:BackgroundExisting studies have suggested decreased adherence and rebound in mortality in perinatally HIV-infected adolescents receiving antiretroviral therapy (ART) as compared to adults and young children.MethodsWe used both quantitative and qualitative approaches to identify factors influencing adherence among perinatally infected adolescents in Thailand. We analyzed data from 568 pairs of perinatally infected adolescents (aged 12-19) and their primary caregivers in the Teens Living With Antiretrovirals (TEEWA) study, a cross-sectional survey conducted in 2010-2012. We also conducted 12 in-depth interviews in 2014 with infected adolescents or their primary caregivers to elicit experiences of living with long-term ART.ResultsFrom the quantitative analysis, a total of 275 (48.4%) adolescents had evidence of suboptimal adherence based on this composite outcome: adolescents self-reported missing doses in the past 7 days, caregiver rating of overall adherence as suboptimal, or latest HIV-RNA viral load ≥1000 copies/ml. In multivariate logistic regression analysis, younger age, having grandparents or extended family members as the primary caregiver, caregiver-assessed poor intellectual ability, having a boy/girlfriend, frequent online chatting, self-reported unhappiness and easiness in asking doctors questions were significantly associated with suboptimal adherence. From the in-depth interviews, tensed relationships with caregivers, forgetfulness due to busy schedules, and fear of disclosing HIV status to others, especially boy/girlfriends, were important contributors to suboptimal adherence. Social and emotional support and counseling from peer group was consistently reported as a strong adherence-promoting factor.ConclusionOur findings highlight unique barriers of ART adherence among the perinatally infected adolescents. Future interventions should be targeted at helping adolescents to improve interpersonal relationships and build adaptive skills in recognizing and addressing challenging situations related to ART taking.

Dataset Information

Five-year trends in antiretroviral usage and drug costs in HIV-infected children in Thailand.

Publications

Five-year trends in antiretroviral usage and drug costs in HIV-infected children in Thailand.

Similar Datasets

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