CNS Impact of Perinatal HIV Infection and Early Treatment: the Need for Behavioral Rehabilitative Interventions Along with Medical Treatment and Care

Attention Test Assessment from a Cluster Randomized Controlled Trial of Caregiver Training for Ugandan Preschool Children Living with Perinatal HIV

Fifty-six Ugandan mothers/caregivers received Mediational Intervention for Sensitizing Caregivers (MISC) biweekly for one year; 46 mothers received treatment-as-usual. Preschool PHIV child attention was measured by proportion of time viewing a 7-min animation (early childhood vigilance test or ECVT) at enrollment, 6 and 12 months. Analysis of covariance compared ECVT outcomes for the two intervention groups, controlling for baseline ECVT performance, age and weight-for-age z scores. Differences by trial arm were not significant at any of the three time points. MISC trial-arm children on combination ART during the study period displayed more stable ECVT scores across time points compared to controls.

The Value of a Motor Intervention for 3 to 6-Year-Old Children Infected with and Affected by HIV

Human immunodeficiency virus (HIV)/Aquired Immune Deficiency Syndrome (AIDS) is a large threat to human health and is challenging to address. This study aims to determine if motor intervention is a possibility for promoting the life expectancy and quality of life of children with HIV. The group consisted of 22 participants: 11 HIV-infected (51.73 months, SD 10.15) and 11 HIV-affected children (44.45 months, SD 10.76). A two-group (intervention and control group) pre-test−post-test research design was followed. The HIV-infected and affected children were randomly matched and grouped into an intervention and control group. The intervention group participated in a 12-week motor intervention of 60 min per session, twice per week. The effect of the program was analyzed with regard to motor skills, as established by the PDMS-2 and two strength capabilities. An ANCOVA adjusted for pre-test differences (p < 0.05) indicated statistically significant improvement (p < 0.05) with large practical significance (d > 0.8) in locomotor, fine motor and overall motor skills. The infected children also showed better improvement compared to the affected children. Motor intervention is recommended in the health care path of children affected and infected with HIV, although modifications for improvement of the program are suggested, based on the results attained.

Early Childhood Vigilance Test (ECVT) of attention in younger HIV-exposed Ugandan children predicts Tests of Variables of Attention (TOVA) at school age

Objective: Evaluate a computerized-based attention test in early infancy in predicting neurocognitive school-age performance in human immunodeficiency virus (HIV)-exposed uninfected children. Method: Thirty-eight Ugandan HIV-exposed/uninfected children (17 boys, 21 girls) were evaluated with the Early Childhood Vigilance Test (ECVT) of attention between 3 and 5 years of age, which is a 6-min 44 s animation with colorful animals that greet the child and move across the screen. Attention was proportion of total animation time viewing a computer screen, as well as the proportion of time tracking the moving animal using eye tracking. These children were then again tested at least 2 years later (between 5 and 9 years of age) with the Kaufman Assessment Battery for Children, 2nd Edition (KABC-II) and the visual computerized Tests of Variables of Attention (TOVA). Results: Irrespective of whether scored by webcam video scoring or using automated eye tracking to compute proportion of time viewing the animation, ECVT attention was significantly correlated with all TOVA outcomes for vigilance attention. This was still the case when the correlation was adjusted for type of caregiver training for the mother, child gender, socioeconomic status (SES), and quality of Home Observational Measurement Evaluation (HOME) environment-especially for the TOVA response time variability to signal (p = .03). None of the ECVT attention performance measures correlated significantly with any of the KABC-II cognitive ability outcomes. Conclusion: Attention assessment in early childhood is predictive of school-age computer-based measures of attention and can be used to gauge the effects of factors of early risk and resilience in brain/behavior development in African children affected by HIV. (PsycInfo Database Record (c) 2022 APA, all rights reserved).

Central Nervous System Impact of Perinatally Acquired HIV in Adolescents and Adults: an Update

Purpose of Review

Perinatally acquired HIV infection (PHIV) can confer neurodevelopmental risk. As children with PHIV increasingly survive through adolescence and into adulthood, understanding its long-term central nervous system (CNS) impacts is critical for maximizing adult outcomes and quality of life.

Recent Findings

Recently published neurocognitive and neuroimaging findings show impacts on the CNS associated with early HIV disease progression that endure into adolescence and young adulthood. Although developmental trajectories in adolescence largely appear stable, further research on maturational processes is indicated.

Summary

Although early antiretroviral therapy in infancy appears to be protective, it is not universally available and current youth largely developed without its benefit. The neurocognitive effects of HIV and the multiple other risks to neurodevelopment experienced by youth with PHIV call for further longitudinal research and a multifaceted approach to prevention and intervention.

Attention Test Improvements from a Cluster Randomized Controlled Trial of Caregiver Training for HIV-Exposed/Uninfected Ugandan Preschool Children

OBJECTIVE

To report vigilance attention outcomes from a cluster randomized controlled trial of early childhood development caregiver training for perinatally HIV-exposed/uninfected preschool-age children in rural Uganda. The Early Childhood Vigilance Test (ECVT) provides a webcam recording of proportion of time a child views an animation periodically moving across a computer screen.

STUDY DESIGN

Sixty mothers/caregivers received biweekly year-long training sessions of the Mediational Intervention for Sensitizing Caregivers (MISC), and 59 mothers received biweekly training about nutrition, hygiene, and health care. Children were tested for attention at baseline, 6 months, and 12 months with the ECVT, in terms of proportion of time spent viewing a 6-minute animation of animals greeting the child and moving across the computer monitor screen. Time viewing the animation were scored by trained observers using ProCoder program for webcam scoring of proportion of time the child faced the animation. Mixed-effects modeling was used to compare ECVT outcomes for the 2 intervention groups.

RESULTS

Unadjusted and adjusted (for age, sex, height, and ECVT at baseline) group differences on ECVT significantly favored the MISC arm at 6 months (P = .03; 95% CI (0.01, 0.11), effect size = 0.46) but not at 12 months. Both groups made significant gains in sustained attention across the year-long intervention (P = .021) with no significant interaction effects between time and treatment arms or sex.

CONCLUSIONS

Caregiver early childhood development training enhanced attention in at-risk Ugandan children, which can be foundational to improved working memory and learning, and perhaps related to previous language benefits reported for this cohort.

TRIAL REGISTRATION

Clinicaltrials.gov: NCT00889395.

Cognitive outcomes at ages seven and nine years in South African children from the children with HIV early antiretroviral (CHER) trial: a longitudinal investigation

INTRODUCTION

Many children living with HIV (CLWH) display impaired cognition. Although early combination antiretroviral therapy (ART) produces improved cognitive outcomes, more long-term outcome data are needed. After concluding the Children with HIV Early antiRetroviral (CHER) trial in 2011, we investigated cognitive performance, at seven and nine years of age. Participants had been randomized to deferred ART (ART-Def; n = 22); immediate time-limited ART for 40 weeks (ART-40W; n = 30) and immediate time-limited ART for 96 weeks (ART-96W; n = 18). We also recruited HIV-exposed uninfected (CHEU; n = 28) and HIV-unexposed (CHU; n = 35) children.

METHODS

Data were collected between May 2012 and December 2017. Mixed-model repeated-measures ANOVAs assessed differences over time between CLWH (ART-40W, ART-96W and ART-Def) and CHIV- CHEU and CHU between ART-Early (ART-40W and ART-96W), ART-Def, CHEU and CHU; and between ART-40W, ART-96W, ART-Def, CHEU and CHU.

RESULTS

All comparisons found significant effects of Time for most outcome variables (better scores at nine than at seven years; ps < 0.05). The first ANOVAs found that for (a) motor dexterity, CLWH performed worse than CHIV- at seven years (p < 0.001) but improved to equivalence at nine years, (b) visual-spatial processing and problem solving, only CLWH (p < 0.04) showed significant performance improvement over time and (c) working memory and executive function, CLWH performed worse than CHIV- at both seven and nine years (p = 0.03 and 0.04). The second ANOVAs found that for (a) working memory, CHU performed better than ART-Early and CHEU (p < 0.01 and <0.04), and (b) motor dexterity, ART-Def performed worse than ART-Early, CHEU and CHU at seven years (p = 0.02, <0.001 and <0.001 respectively) but improved to equivalence at nine years (ps > 0.17). Similarly, for motor dexterity, ART-Def performed worse than ART-96W, CHEU and CHU at seven years (p < 0.04, <0.001 and <0.001) but improved to equivalence at nine years (ps > 0.20).

CONCLUSIONS

Although neurocognitive developmental trajectories for treatment groups and controls were largely similar (i.e. performance improvements from 7 to 9), all ART-treated children, regardless of treatment arm, remain at risk for cognitive deficits over early school ages. Although the nature of these deficits may change as cognitive development proceeds, there are potential negative consequences for these children's future learning, reasoning and adaptive functioning.

[Formula: see text]Neurodevelopmental assessment at one year of age predicts neuropsychological performance at six years in a cohort of West African Children

Rural children from Benin, west Africa were evaluated with the Mullen Scales of Early Learning (MSEL) at one year of age and then at six years with the Kaufman Assessment Battery for Children (KABC-II), the visual computerized Tests of Variables of Attention (TOVA), and the Bruininks-Oseretsky Test (BOT-2) of motor proficiency (N = 568). Although both the MSEL and KABC-II were available to the assessors in French, instructions to the mother/child were in local language of Fon. Mothers were evaluated with the Edinburgh Postpartum Depression Scale (EPDS), Caldwell HOME Scale, educational level and literacy, and a Socio-Economic Scale - also in their local language (Fon). After adjusting for maternal factors, MSEL cognitive composite was correlated with KABC-II with moderate effect sizes, but not with TOVA scores. Overall eta-squared effect for the multivariate models were moderately to strongly correlated (.07 to .37). Neurodevelopmental assessments in early childhood adapted cross-culturally are predictive of school-age neuropsychological cognitive ability.

African Multi-Site 2-Year Neuropsychological Study of School-Age Children Perinatally Infected, Exposed, and Unexposed to Human Immunodeficiency Virus

BACKGROUND

Children living with human immunodeficiency virus (HIV) are at neuropsychological risk for cognitive and motor dysfunction. However, few prospective, multi-site studies have evaluated neuropsychological outcomes longitudinally among perinatally infected African children who received early antiretroviral treatment (ART).

METHODS

We enrolled 611 children aged 5 to 11 years at 6 sites (South Africa [3], Zimbabwe, Malawi, Uganda). Of these, there were 246 children living with HIV (HIV+) who were initiated on ART before 3 years of age in a prior clinical trial comparing nevirapine to lopinavir/ritonavir (International Maternal Pediatric Adolescent Acquired Immunodeficiency Syndrome Clinical Trials [IMPAACT] P1060); 183 age-matched, exposed but uninfected (HEU) children; and 182 unexposed and uninfected (HUU) children. They were compared across 3 assessment time points (Weeks 0, 48, and 96) on cognitive ability (Kaufman Assessment Battery for Children, second edition [KABC-II]), attention/impulsivity (Tests of Variables of Attention [TOVA]), motor proficiency (Bruininks-Oseretsky Test, second edition [BOT-2]), and on the Behavior Rating Inventory of Executive Function (BRIEF). The cohorts were compared using linear mixed models, adjusting for site, child's age and sex, and selected personal/family control variables.

RESULTS

The HIV+ cohort performed significantly worse than the HEU and HUU cohorts for all KABC-II, TOVA, and BOT-2 performance outcomes across all 3 time points (P values < .001). The HUU and HEU cohorts were comparable. For the KABC-II planning/reasoning subtests, the HIV+ children showed less improvement over time than the HUU and HEU groups. The groups did not differ significantly on the BRIEF.

CONCLUSIONS

Despite initiation of ART in early childhood and good viral suppression at the time of enrollment, the HIV+ group had poorer neuropsychological performance over time, with the gap progressively worsening in planning/reasoning. This can be debilitating for self-management in adolescence.

Neurodevelopment of HIV-exposed uninfected children in Cape Town, South Africa

BACKGROUND

Evidence shows that antiretroviral (ART) exposure is associated with neurodevelopmental delays in human immunodeficiency virus (HIV)-exposed uninfected (HEU) children. However, there are few insights into modifiable maternal and child factors that may play a role in improving neurodevelopment in HEU children. We used a parent-centric neurodevelopment tool, Ages & Stages Questionnaire (ASQ) to examined neurodevelopment in HEU children at 12-24 months of age, and associations with maternal and child factors.

METHODS

505 HIV-infected women (initiated ART pre- or during pregnancy) with live singleton births attending primary health care were enrolled; 355 of their HEU children were assessed for neurodevelopment (gross motor, fine motor, communication, problem solving and personal-social domains) at 12-24 months using age-specific ASQ administered by a trained fieldworker. Associations with maternal and child factors were examined using logistic regression models.

RESULTS

Among mothers (median age 30 years, IQR, 26-34), 52% initiated ART during pregnancy; the median CD4 count was 436 cells/μl (IQR, 305-604). Most delayed neurodevelopment in HEU children was in gross (9%) and fine motor (5%) functions. In adjusted models, maternal socio-economic status (aOR 0.42, 95% CI 0.24-0.76) was associated with reduced odds of delayed gross-fine motor neurodevelopment. Maternal age ≥35 years (aOR 0.22, 95% CI 0.05-0.89) and maternal body mass index (BMI) <18.5 (aOR 6.76, 95% CI 1.06-43.13) were associated with delayed communication-problem-solving-personal-social neurodevelopment. There were no differences in odds for either domain by maternal ART initiation timing.

CONCLUSIONS

Delayed neurodevelopment was detected in both gross and fine motor functions in this cohort of HEU children, with strong maternal predictors that may be explored as potentially modifiable factors associated with neurodevelopment at one to two years of age.

Mental health interventions for adolescents living with HIV or affected by HIV in low- and middle-income countries: systematic review

BACKGROUND

Mental health difficulties and mental disorders are common in adolescents living with HIV or who are affected by HIV because of living in HIV-affected households in low- and middle-income (LMICs) countries, but little is known about the interventions that target these individuals and whether they are effective.

AIMS

This systematic review aims to address these gaps by examining what has worked and what has not worked to support the mental health of adolescents living with HIV or affected by HIV in low- and middle-income contexts (PROSPERO Number: CRD42018103269).

METHOD

A systematic literature review of online databases from the year 2000 to 2018, using Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines, included English-language publications of quantitative evaluations of psychosocial interventions aiming to improve mental health among adolescents living with HIV and adolescents from HIV-affected households (aged 10-24 years) in LMICs.

RESULTS

Out of 2956 articles, 16 studies from 8 LMICs met the inclusion criteria. Thirteen studies focused on adolescents affected by HIV and only three studies on adolescents living with HIV. Only five studies included were from Sub-Saharan Africa. Interventions most often used a family-strengthening approach strengthening caregiver-adolescent relationships and communication and some problem-solving in groups or individually. Five studies reported statistically significant changes in adolescent and caregiver mental health or mental well-being, five among adolescents only and two among caregivers only.

CONCLUSIONS

Research on what works to improve mental health in adolescents living with HIV in LMIC is in its nascent stages. Family-based interventions and economic strengthening show promise.

Early Childhood Development Caregiver Training and Neurocognition of HIV-Exposed Ugandan Siblings

OBJECTIVE

Early childhood development (ECD) programs can enhance neurocognitive development outcomes through caregiver training. This study explores whether school-age siblings benefited from a program provided to HIV-infected caregivers and their preschool-aged target children.

METHODS

Siblings of target 2- to 3-year-old children in ECD intervention households were evaluated at school age (5-12 years) on neurocognitive outcomes with the Kaufman Assessment Battery for Children (KABC), computerized Test of Variables of Attention, Behavior Rating Inventory for Executive Function (BRIEF; parent), and attention-deficit/hyperactivity disorder rating inventory (ADHD-R)-IV (parent). Households from 18 geographic clusters in eastern Uganda were randomized to individualized biweekly sessions of either (1) Mediational Intervention for Sensitizing Caregivers (MISC) training emphasizing cognitive stimulation/enrichment or (2) health/nutrition/development [Uganda Community-Based Association For Women & Children Welfare (UCOBAC)] program. Siblings with baseline and at least 1 follow-up assessment (n = 216) were included in the analysis. Three repeated postbaseline measures of sibling neurocognitive outcomes were analyzed using the linear mixed-effects model while adjusting for socioeconomic status and behavioral outcome at baseline.

RESULTS

Siblings in the MISC arm had better performance on KABC sequential processing at 6 months (p = 0.02) and simultaneous processing at 12 months (p = 0.03). MISC mothers rated their children as having significantly more problems on the BRIEF and ADHD-RS-IV (p < 0.01) than UCOBAC mothers across all time points.

CONCLUSION

Mediational Intervention for Sensitizing Caregivers training resulted in some short-term neurocognitive benefits for school-aged siblings, but these differences were not sustained at 1-year follow-up. Exploring potential impacts of parenting programs on other children in the home is an important development for the field.

Working with memory: Computerized, adaptive working memory training for adolescents living with HIV

This study investigated working memory (WM) training for adolescents with perinatal HIV infection, since WM is negatively impacted by the virus, and adolescence is a time of considerable brain reorganization, during which WM functioning reaches maturation. We posed three main questions: 1) whether WM could be trained in adolescents living with HIV, and if so, whether these effects were maintained over a six-month period during which no further training was received; 2) whether there were differential effects of training on the components of WM (verbal and visuospatial storage, verbal and visuospatial processing); 3) whether the WM training transferred to cognate tasks, and if so, whether these transfer effects were maintained over six months. Sixty-three HIV+ adolescents (10-16 years) from two children's homes were assigned to the training (n = 31) or control (n = 32) group. The training group received 32 hours of supervised training in an adaptive, computerized WM intervention, while the control group received a supervised, placebo computerized program for the same hours. Comprehensive WM and neuropsychological batteries were administered to both groups at pretest, immediately following the intervention, and six months later. Significant improvements were found in verbal WM for the training group, which were maintained six months later. Transfer effects were evident in attention, executive function, memory, language and fluid intelligence. There were no significant posttest improvements in visuospatial storage, and minimal changes in verbal storage and visuospatial WM. These findings represent an important step in exploring ways to improve cognitive functioning in an at-risk population.

Building capacity in neurodevelopment assessment of children in sub-Saharan Africa: A quality assurance model to implement standardized neurodevelopment testing

Compromised neurodevelopment (ND) among infants and children is prevalent in sub-Saharan Africa. Standardized testing of ND is frequently prohibitive in these contexts, as tests require skilled staff for their application. In this paper, we present a quality assurance (QA) model (QualiND) for standardized ND testing, discussing findings and implications from our experience applying the Kaufman Assessment Battery for Children second edition (KABC-II). The QualiND model was implemented within IMPAACT P1104s study, a multisite, prospective study including 615 children affected by HIV. From 2014 to 2016, the QualiND managed 18 testers across 6 sites located in 4 African countries applying the KABC-II in 9 local languages. The QualiND is a multilevel, video-assisted iterative model incorporating remote evaluation, feedback, and supervision roles. Using an ad hoc rubric, videos of test application were evaluated by experienced staff in a centralized QA center. At each study site, testers and supervisors reviewed feedback from videos received via email from the QA center and devised an action plan to address testing errors and deficiencies. There were few instances of invalid tests and few barriers to test completion. Over 97% of KABC-II tests across sites were considered to be valid by the QA center. Overall, the QualiND model was a useful platform for remote supervision to nonspecialist and minimally trained research staff. The QualiND model may be useful to researchers and organizations involved in measuring early child development using standardized tests in low and middle-income countries.

Prevalence, correlates for early neurological disorders and association with functioning among children and adolescents with HIV/AIDS in Uganda

BACKGROUND

The aim of this study was to determine the prevalence of neurological disorders and their associated correlates and relations with clinical and behavioural problems among children and adolescents with HIV/AIDS (CA-HIV).

METHODS

This study involved a sample of 1070 CA-HIV/caregiver dyads who were evaluated at their 6-month follow-up visit as part of their participation in the longitudinal study, 'Mental health among HIV infected CHildren and Adolescents in KAmpala and Masaka, Uganda (the CHAKA study)'. Participants completed an extensive battery of measures that included a standardized DSM-5- referenced rating scale, the parent version (5-18 years) of the Child and Adolescent Symptom Inventory-5 (CASI-5). Using logistic regression, we estimated the prevalence of neurological disorders and characterised their associations with negative clinical and behavioural factors.

RESULTS

The overall prevalence of at least one neurological disorders was 18.5% (n = 198; 95% CI, 16.2-20.8). Enuresis / encopresis was the most common (10%), followed by motor/vocal tics (5.3%); probable epilepsy was the least prevalent (4%). Correlates associated with neurological disorders were in two domains: socio-demographic factors (age, ethnicity and staying in rural areas) and HIV-related factors (baseline viral load suppression). Enuresis/encopresis was associated with psychiatric comorbidity. Neurological disorders were associated with earlier onset of sexual intercourse (adjusted OR 4.06, 95% CI 1.26-13.1, P = 0.02).

CONCLUSIONS

Neurological disorders impact lives of many children and adolescents with HIV/AIDS. There is an urgent need to integrate the delivery of mental and neurological health services into routine clinical care for children and adolescents with HIV/AIDS in sub-Saharan Africa.

Neruodevelopmental Outcomes in Preschool Children Living With HIV-1 Subtypes A and D in Uganda

BACKGROUND

HIV is a neuropathogenic virus that may result in detrimental neurodevelopmental (ND) outcomes early in life. This is the first study to evaluate the effect of HIV-1 subtype on neurodevelopment of Ugandan preschool children.

METHODS

Neurodevelopment of 87 HIV-1 infected and 221 HIV exposed uninfected Ugandan children 1.8-4.9 years of age was assessed using 4 scales of the Mullen Scales of Early Learning (MSEL), 2 scales of the Color Object Association Test (COAT), and 1 score of the Early Childhood Vigilance Test. HIV-1 subtype was defined by phylogenetic analyses. General linear models were used to relate test scores to HIV-1 subtype (A versus D) while adjusting for relevant covariates. The scores were benchmarked against HIV exposed uninfected group to facilitate the interpretation.

RESULTS

Seventy-one percentage of children infected with subtype A versus 60% of children with subtype D were currently on antiretroviral therapy (P = 0.49). Children with HIV-1 subtype A infection were older when compared with subtype D (3.29 vs. 2.76 years, respectively, P = 0.03), but similar regarding sex, socioeconomic status, weight-for-age z-score, CD4+ and CD8+ (% and total), viral load. No statistically significant differences by HIV-1 subtype were observed in the MSEL, COAT and Early Childhood Vigilance Test. Differences ≥ 0.33 of the SD were observed for the MSEL Composite Score, Receptive Language (MSEL) and Total Memory (COAT).

CONCLUSIONS

In contrast to previously reported differences in ND outcomes of school-age children by HIV-1 subtype, ND scores among preschool children were similar for subtypes A and D, with few potential differences on language production and memory outcomes that favored subtype A. Further investigation with larger sample sizes and longitudinal follow-up is needed.

Propelling the Pediatric HIV Therapeutic Agenda With Science, Innovation, and Collaboration

BACKGROUND

A number of well-described obstacles to the pediatric therapeutic agenda have resulted in substantial delays in the introduction of new medications, formulations, strategies, and approaches to treat infants, children, and adolescents living with HIV.

SETTING

Global landscape.

METHODS

The authors will provide a summary of current and emerging initiatives to accelerate the pediatric therapeutic agenda including illustrative case studies of innovations and scientific discovery in diagnosis and treatment of very young children with HIV infection.

RESULTS

The challenges posed by rapid physiologic and developmental changes that characterize the trajectory of childhood as well as the complex regulatory and fiscal milieu of HIV therapeutics have hampered pediatric HIV therapeutic research. Recent efforts to accelerate this agenda include prioritizing agents and formulations, defining dosing by weight bands, applying innovative study designs, synergizing work across research networks to achieve common goals, and the establishment of a global prioritized research agenda. A case study of initiatives to diagnose and effectively treat newborns and infants will illustrate the critical role of basic science research and novel approaches to study design and implementation that are informing global efforts to end AIDS.

CONCLUSIONS

A pediatric therapeutic agenda informed by basic science and achieved through innovation and global cooperation is essential to achieve an AIDS-free generation.

Evaluating the effectiveness of a multi-component intervention on early childhood development in paediatric HIV care and treatment programmes: a randomised controlled trial

BACKGROUND

HIV infection in a family may affect optimum child development. Our hypothesis is that child development outcomes among HIV-exposed infants will be improved through a complex early childhood stimulation (ECS) programme, and income and loans saving programme for HIV positive parents.

METHODS

The study was a cluster-randomized controlled trial in 30 clinic sites in two districts in Zimbabwe. Clinics were randomised in a 1:1 allocation ratio to the Child Health Intervention for Development Outcomes (CHIDO) intervention or Ministry of Health standard care. The CHIDO intervention comprises three elements: a group ECS parenting programme, an internal savings and lending scheme (ISALS) and case-management home visits by village health workers. The intervention was aimed at caregiver-child dyads (child aged 0-24 months) where the infant was HIV exposed or infected. The primary outcomes were cognitive development (assessed by the Mullen Scales of Early Learning) and retention of the child in HIV care, at 12 months after enrolment. A comprehensive process evaluation was conducted.

DISCUSSION

The results of this cluster-randomised trial will provide important information regarding the effects of multi-component interventions in mitigating developmental delays in HIV-exposed infants living in resource-limited environments.

TRIAL REGISTRATION

This trial is registered with the Pan African Clinical Trials Registry ( www.pactr.org ), registration number PACTR201701001387209; the trial was registered on 16th January 2017 (retrospectively registered).

Neuropsychological performance in African children with HIV enrolled in a multisite antiretroviral clinical trial

OBJECTIVE AND DESIGN

Children with HIV infection (HIV+) are at neuropsychological risk, but few studies have evaluated this at multiple sites in low-income and middle-income countries. We compared neuropsychological outcomes at enrollment (>5 years age) among HIV+, HIV perinatally exposed uninfected (HEU), and HIV unexposed uninfected (HUU) children from four sub-Saharan countries.

METHODS

IMPAACT P1060 compared nevirapine versus lopinavir/ritonavir-based antiretroviral treatment (ART) in HIV-infected children 6-35 months of age. The present study (P1104s) enrolled P1060 children at 5-11 years of age and evaluated their neuropsychological performance over 2 years using the Kaufman Assessment Battery for Children, 2nd edition (KABC-II), Tests of Variables of Attention (TOVA), Bruininks-Oseretsky Test, 2nd edition (BOT-2), and parent-reported Behavior Rating Inventory of Executive Function (BRIEF). Cohorts were compared using generalized estimating equations least-squares means adjusted for site, child age and sex, and personal and social characteristics for child and caregiver.

RESULTS

Six hundred and eleven (246 HIV+, 183 HEU, 182 HUU) of the 615 enrolled at six sites [South Africa (three), Zimbabwe, Malawi, Uganda] were available for analysis. Mean age was 7.2 years, 48% male, 69% in school. Unadjusted and adjusted comparisons were consistent. HIV+ children performed significantly worse than HEU and HUU cohorts on all KABC-II cognitive performance domains and on BOT-2 total motor proficiency (P < 0.001), but not on the BRIEF Global Executive Indices. HUU and HEU cohorts were comparable on cognitive outcomes. HIV+ children initiated on ART before 1 year of age had significantly better BRIEF evaluations (lower scores - fewer behavior problems), compared with those started after (P = 0.03).

CONCLUSION

Significant cognitive deficits were documented among HIV+ children at school age, even when started on ART at an early age. Earlier HIV treatment, neuropsychological monitoring, and rehabilitative interventions are all needed. Subsequent testing for 2 more years will help further evaluate how HIV infection and exposure affect the developmental trajectory.