Fostering successful and sustainable collaborations to advance implementation science: the adolescent HIV prevention and treatment implementation science alliance.

INTRODUCTION: HIV continues to devastate the adolescent population in sub-Saharan Africa (SSA). The complex array of interpersonal, social, structural and system-level obstacles specific to adolescents have slowed progress in prevention and treatment of HIV in this population. The field of implementation science holds promise for addressing these challenges. DISCUSSION: There is growing consensus that enhanced interactions between researchers and users of scientific evidence are important and necessary to tackle enduring barriers to implementation. In 2017, the Fogarty International Center launched the Adolescent HIV Prevention and Treatment Implementation Science Alliance (AHISA) to promote communication and catalyse collaboration among implementation scientists and implementers to enhance the cross-fertilization of insights as research advances and the implementation environment evolves. This network has identified key implementation science questions for adolescent HIV, assessed how members' research is addressing them, and is currently conducting a concept mapping exercise to more systematically identify implementation research priorities. In addition, AHSA pinpointed common challenges to addressing these questions and discussed their collective capacity to conduct implementation science using the shared learning approach of the network. Specifically, AHISA addresses challenges related to capacity building, developing mentorship, engaging stakeholders, and involving adolescents through support for training efforts and funding region-/country-specific networks that respond to local issues and increase implementation science capacity across SSA. CONCLUSIONS: Innovative platforms, like AHISA, that foster collaborations between implementation science researchers, policymakers and community participants to prioritizes research needs and identify and address implementation challenges can speed the translation of effective HIV interventions to benefit adolescent health.

Accelerating progress towards the elimination of mother-to-child transmission of HIV: a narrative review.

INTRODUCTION: Findings from biomedical, behavioural and implementation studies provide a rich foundation to guide programmatic efforts for the prevention of mother-to-child HIV transmission (PMTCT). METHODS: We summarized the current evidence base to support policy makers, programme managers, funding agencies and other stakeholders in designing and optimizing PMTCT programmes. We searched the scientific literature for PMTCT interventions in the era of universal antiretroviral therapy for pregnant and breastfeeding women (i.e. 2013 onward). Where evidence was sparse, relevant studies from the general HIV treatment literature or from prior eras of PMTCT programme implementation were also considered. Studies were organized into six categories: HIV prevention services for women, timely access to HIV testing, timely access to ART, programme retention and adherence support, timely engagement in antenatal care and services for infants at highest risk of HIV acquisition. These were mapped to specific missed opportunities identified by the UNAIDS Spectrum model and embedded in UNICEF operational guidance to optimize PMTCT services. RESULTS AND DISCUSSION: From May to November 2019, we identified numerous promising, evidence-based strategies that, properly tailored and adopted, could contribute to population reductions in vertical HIV transmission. These spanned the HIV and maternal and child health literature, emphasizing the importance of continued alignment and integration of services. We observed overlap between several intervention domains, suggesting potential for synergies and increased downstream impact. Common themes included integration of facility-based healthcare; decentralization of health services from facilities to communities; and engagement of partners, peers and lay workers for social support. Approaches to ensure early HIV diagnosis and treatment prior to pregnancy would strengthen care across the maternal lifespan and should be promoted in the context of PMTCT. CONCLUSIONS: A wide range of effective strategies exist to improve PMTCT access, uptake and retention. Programmes should carefully consider, prioritize and plan those that are most appropriate for the local setting and best address existing gaps in PMTCT health services.

Making Implementation Science Work for Children and Adolescents Living With HIV.

The global HIV response is leaving children and adolescents behind. Because of a paucity of studies on treatment and care models for these age groups, there are gaps in our understanding of how best to implement services to improve their health outcomes. Without this evidence, policymakers are left to extrapolate from adult studies, which may not be appropriate, and can lead to inefficiencies in service delivery, hampered uptake, and ineffective mechanisms to support optimal outcomes. Implementation science research seeks to investigate how interventions known to be efficacious in study settings are, or are not, routinely implemented within real-world programmes. Effective implementation science research must be a collaborative effort between government, funding agencies, investigators, and implementers, each playing a key role. Successful implementation science research in children and adolescents requires clearer policies about age of consent for services and research that conform to ethical standards but allow for rational modifications. Implementation research in these age groups also necessitates age-appropriate consultation and engagement of children, adolescents, and their caregivers. Finally, resource, systems, technology, and training must be prioritized to improve the availability and quality of age-/sex-disaggregated data. Implementation science has a clear role to play in facilitating understanding of how the multiple complex barriers to HIV services for children and adolescents prevent effective interventions from reaching more children and adolescents living with HIV, and is well positioned to redress gaps in the HIV response for these age groups. This is truer now more than ever, with urgent and ambitious 2020 global targets on the horizon and insufficient progress in these age groups to date.

Adolescent Male Circumcision for HIV Prevention in High Priority Countries: Opportunities for Improvement.

Global experts recognize the need to transform conventional models of healthcare to create adolescent responsive health systems. As countries near 80% coverage of voluntary medical male circumcision (VMMC) for those aged 15-49 years, prioritization of younger men becomes critical to VMMC sustainability. This special supplement reporting 9 studies focusing on adolescent VMMC programming and services comes at a critical time. Eight articles report how well adolescents are reached with the World Health Organization's minimum package for comprehensive human immunodeficiency virus (HIV) prevention in South Africa, Zimbabwe, and Tanzania, analyzing motivation, counseling, wound healing, parental involvement, female peer support, quality of in-service communication, and providers' perceptions, and one presents models for achieving high VMMC coverage by 2021. One important finding is that adolescent boys, especially the youngest, experience gaps in their comprehension of key elements in the World Health Organization's minimum package. Although parents, counselors, and providers are involved and supportive, they are inadequately prepared to counsel youth, partly owing to discomfort with adolescent sexuality. At the country level, deliberately prioritizing young adolescents (aged 10-14 years) is likely to achieve national coverage targets more quickly and cost-effectively than continuing to focus on older, harder-to-reach men. The studies in this supplement point to areas where VMMC programs are achieving successes and they reveal areas for improvement. Given that prioritizing adolescents will be the best means of achieving sustainable VMMC for HIV prevention for the foreseeable future, applying the lessons learned here will increase the effectiveness of VMMC programs.

Translating Technical Support Into Country Action: The Role of the Interagency Task Team on the Prevention and Treatment of HIV Infection in Pregnant Women, Mothers, and Children in the Global Plan Era.

While the Interagency Task Team on the Prevention and Treatment of HIV Infection in Pregnant Women, Mothers, and Children (IATT) partnership existed before the Global Plan Towards the Elimination of New HIV Infections Among Children by 2015 and Keeping Their Mothers Alive (Global Plan), its reconfiguration was critical to coordinating provision of technical assistance that positively influenced country decision-making and program performance. This article describes how the Global Plan anchored the work of the IATT and, in turn, how the IATT's technical assistance helped to accelerate achievement of the Global Plan targets and milestones. The technical assistance that will be discussed addressed a broad range of priority actions and milestones described in the Global Plan: (1) planning for and implementing Option B+; (2) strengthening monitoring and evaluation systems; (3) translating evidence into action and advocacy; and (4) promoting community engagement. This article also reviews the ongoing challenges and opportunities of providing technical assistance in a rapidly evolving environment that calls for ever more flexible and contextualized responses. The effectiveness of technical assistance facilitated by the IATT was defined by its timeliness, evidence base, and unique global perspective that built on the competencies of its partners and promoted synergies across program areas. Reaching the final goal of eliminating vertical transmission of HIV infection and achieving an AIDS-free generation in countries with the highest HIV burden requires that the IATT partnership and technical assistance remain responsive to country-specific needs while aligning with the current programmatic reality and new global goals such as the Sustainable Development Goals and 90-90-90 targets.

Pregnant and Postpartum Women's Experiences and Perspectives on the Acceptability and Feasibility of Copackaged Medicine for Antenatal Care and PMTCT in Lesotho.

Objective. To improve PMTCT and antenatal care-related service delivery, a pack with centrally prepackaged medicine was rolled out to all pregnant women in Lesotho in 2011. This study assessed acceptability and feasibility of this copackaging mechanism for drug delivery among pregnant and postpartum women. Methods. Acceptability and feasibility were assessed in a mixed method, cross-sectional study through structured interviews (SI) and semistructured interviews (SSI) conducted in 2012 and 2013. Results. 290 HIV-negative women and 437 HIV-positive women (n = 727) participated. Nearly all SI participants found prepackaged medicines acceptable, though modifications such as size reduction of the pack were suggested. Positive experiences included that the pack helped women take pills as instructed and contents promoted healthy pregnancies. Negative experiences included inadvertent pregnancy disclosure and discomfort carrying the pack in communities. Implementation was also feasible; 85.2% of SI participants reported adequate counseling time, though 37.8% felt pack use caused clinic delays. SSI participants reported improvement in service quality following pack introduction, due to more comprehensive counseling. Conclusions. A prepackaged drug delivery mechanism for ANC/PMTCT medicines was acceptable and feasible. Findings support continued use of this approach in Lesotho with improved design modifications to reflect the current PMTCT program of lifelong treatment for all HIV-positive pregnant women.

Integration of HIV in child survival platforms: a novel programmatic pathway towards the 90-90-90 targets.

INTRODUCTION: Integration of HIV into child survival platforms is an evolving territory with multiple connotations. Most literature on integration of HIV into other health services focuses on adults; however promising practices for children are emerging. These include the Double Dividend (DD) framework, a new programming approach with dual goal of improving paediatric HIV care and child survival. In this commentary, the authors discuss why integrating HIV testing, treatment and care into child survival platforms is important, as well as its potential to advance progress towards global targets that call for, by 2020, 90% of children living with HIV to know their status, 90% of those diagnosed to be on treatment and 90% of those on treatment to be virally suppressed (90-90-90). DISCUSSION: Integration is critical in improving health outcomes and efficiency gains. In children, integration of HIV in programmes such as immunization and nutrition has been associated with an increased uptake of HIV infant testing. Integration is increasingly recognized as a case-finding strategy for children missed from prevention of mother-to-child transmission programmes and as a platform for diffusing emerging technologies such as point-of-care diagnostics. These support progress towards the 90-90-90 targets by providing a pathway for early identification of HIV-infected children with co-morbidities, prompt initiation of treatment and improved survival. There are various promising practices that have demonstrated HIV outcomes; however, few have documented the benefits of integration on child survival interventions. The DD framework is well positioned to address the bidirectional impacts for both programmes. CONCLUSIONS: Integration provides an important programmatic pathway for accelerated progress towards the 90-90-90 targets. Despite this encouraging information, there are still challenges to be addressed in order to maximize the benefits of integration.

Integration of HIV infant testing into immunization programmes: a systematic review.

BACKGROUND: Integration of HIV infant testing into immunization sessions is one of the strategies designed to increase coverage of early infant diagnosis. OBJECTIVE: To determine the evidence on the outcomes of such integration. METHODS: A systematic review of peer-reviewed and grey literature was undertaken from electronic sources such as MEDLINE, Google Scholar, websites of international agencies, past conferences and ministries of health reports published between year 2002 and 2013. Randomized controlled trials, observational and qualitative studies were searched and those meeting selection criteria were selected and relevant information extracted using structured tool. Statistical pooling was not possible owing to the heterogeneity of the study designs and outcome measures. RESULTS: Of the nine articles which met the selection criteria, none used a randomized controlled design. Of these, five articles measured mother's acceptability of their infants being tested for HIV during its first pentavalent or DPT vaccination visit, and 89·5-100% accepted. Four articles reported the proportion of mothers who returned for HIV test results, ranging from 56·8% to 86·0%. Increased uptake of HIV testing following integration was confirmed by two articles. Only one study in Tanzania determined the uptake of vaccinations following integration, with urban facilities showing stable or slight increase of monthly vaccine uptake while decreases were observed across the rural sites. In two articles, stigma was perceived by service-providers and mothers as the potential risk following integration, particularly in rural settings. DISCUSSION: Despite the limited number of articles, the findings in this systematic review suggest that HIV testing during immunization clinic visits is acceptable and feasible as a possible model for service delivery. However, the impact on vaccination uptake needs further study.

Integration of HIV infant testing into immunization programmes: a systematic review.

Background: Integration of HIV infant testing into immunization sessions is one of the strategies designed to increase coverage of early infant diagnosis. Objective: To determine the evidence on the outcomes of such integration. Methods: A systematic review of peer-reviewed and grey literature was undertaken from electronic sources such as MEDLINE, Google Scholar, websites of international agencies, past conferences and ministries of health reports published between year 2002 and 2013. Randomized controlled trials, observational and qualitative studies were searched and those meeting selection criteria were selected and relevant information extracted using structured tool. Statistical pooling was not possible owing to the heterogeneity of the study designs and outcome measures. Results: Of the nine articles which met the selection criteria, none used a randomized controlled design. Of these, five articles measured mother's acceptability of their infants being tested for HIV during its first pentavalent or DPT vaccination visit, and 89·5-100% accepted. Four articles reported the proportion of mothers who returned for HIV test results, ranging from 56·8% to 86·0%. Increased uptake of HIV testing following integration was confirmed by two articles. Only one study in Tanzania determined the uptake of vaccinations following integration, with urban facilities showing stable or slight increase of monthly vaccine uptake while decreases were observed across the rural sites. In two articles, stigma was perceived by service-providers and mothers as the potential risk following integration, particularly in rural settings. Discussion: Despite the limited number of articles, the findings in this systematic review suggest that HIV testing during immunization clinic visits is acceptable and feasible as a possible model for service delivery. However, the impact on vaccination uptake needs further study.

Epidemiology of HIV and AIDS among adolescents: current status, inequities, and data gaps.

OBJECTIVES: To examine levels and patterns of HIV prevalence, knowledge, sexual behavior, and coverage of selected HIV services among adolescents aged 10-19 years and highlight data gaps and challenges. METHODS: Data were reviewed from Joint United Nations Programme on HIV/AIDS HIV estimates, nationally representative household surveys, behavioral surveillance surveys, and published literature. RESULTS: A number of gaps exist for adolescent-specific HIV-related data; however, important implications for programming can be drawn. Eighty-two percent of the estimated 2.1 million adolescents aged 10-19 years living with HIV in 2012 were in sub-Saharan Africa, and the majority of these (58%) were females. Comprehensive accurate knowledge about HIV, condom use, HIV testing, and antiretroviral treatment coverage remain low in most countries. Early sexual debut (sex before 15 years of age) is more common among adolescent girls than boys in low- and middle-income countries, consistent with early marriage and early childbirth in these countries. In low and concentrated epidemic countries, HIV prevalence is highest among key populations. CONCLUSIONS: Although the available HIV-related data on adolescents are limited, increased HIV vulnerability in the second decade of life is evident in the data. Improving data gathering, analysis, and reporting systems specific to adolescents is essential to monitoring progress and improving health outcomes for adolescents. More systematic and better quality disaggregated data are needed to understand differences by sex, age, geography, and socioeconomic factors and to address equity and human rights obligations, especially for key populations.

Executive summary: opportunities for action and impact to address HIV and AIDS in adolescents.

INTRODUCTION: The global HIV epidemic in adolescents is not controlled, and this group has not received sufficient attention in programming and research efforts addressing HIV prevention, treatment, and care. METHODS: A global technical consultation on adolescents and HIV addressing services and research gaps was convened by United Nations Children's Fund and the London School of Hygiene and Tropical Medicine in July 2013. Proceedings from this meeting are presented in this issue of the Supplement. RESULTS: Several reviews highlight poor levels of coverage of critical HIV prevention, treatment, and care interventions for adolescents, disparities in HIV prevalence among adolescent girls, and low-risk perceptions associated with risk behaviors among key risk groups. Others underscore the significance of clear national targets and strengthening data, government involvement, enhanced systems capacity and policy, engagement of community and adolescent social networks, and of mobile and internet technologies to the success of interventions for adolescents. Finally, reviews identified several efficacious interventions for adults that could benefit from operational research to inform optimizing implementation in adolescents and how to do so with maximal cost efficiency and impact on the epidemic. CONCLUSIONS: Addressing the adolescent gap in the response to the HIV epidemic is essential to a more sustainable and effective response and is critical to overall adolescent health and well-being. The global community has the means and the responsibility to put measures in place to make AIDS-free survival the reality for children in this second decade of life.