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285 active trials for HIV

Caregiver Peer Support and ART Adherence Among Children

Adherence for children living with HIV is a by-proxy phenomenon dependent on caregivers (parents, relatives or unrelated guardians) who may or may not be living with HIV. The complexity of paediatric formulations and dosing for ART regimens often poses challenges for caregivers, making ART administration and achievement of viral suppression quite a difficult task for young children. Peer support for caregivers presents a potentially feasible and impactful approach to improve ART adherence and facilitate achievement of viral suppression among children. However, there is a scarcity of robust evidence on the impact of caregiver support as a treatment adherence strategy for children. The study is a two-arm cluster randomized controlled trial that includes 78 unsuppressed children living with HIV (0-10 years old) and their caregivers at six cluster sites in Nigeria. It will: Explore facilitators and barriers to ART adherence among young children to develop a caregiver peer mentor training curriculum and interventional programme. Test the impact of caregiver peer support, a locally adapted behavioural intervention, to improve adherence and promote achievement of viral suppression among children. The intervention will target caregivers of unsuppressed children, measuring outcomes at child level after 12 months of follow up. The intervention arm will receive structured caregiver-to-caregiver peer support while the control arm will receive routine standard of care with no such support. The researchers will compare viral suppression and ART drug-pickup rates for children living with HIV at specific time points for both arms.

Start: April 2021
Effects of COVID-19 on Endothelium in HIV-Positive Patients in Sub-Saharan Africa

Background: Coronavirus disease 2019 (COVID-19) has affected almost every country in the world, especially in terms of health system capacity and economic burden. People from sub-Saharan Africa (SSA) often face interaction between human immunodeficiency virus (HIV) infection and non-communicable diseases such as cardiovascular disease. Role of HIV infection and anti-retroviral treatment (ART) in altered cardiovascular risk is questionable and there is still need to further carry out research in this field. However, thus far it is unclear, what impact the COVID-19 co-infection in people living with HIV (PLHIV), with or without therapy will have. The ENDOCOVID project aims to investigate whether and how HIV-infection in COVID-19 patients modulates the time course of the disease, alters cardiovascular risk, and changes vascular endothelial function and coagulation parameters/ thrombosis risk. Methods: In this long-term study, cardiovascular research on PLHIV with or without ART with COVID-19 and HIV-negative with COVID-19 will be carried out via clinical and biochemical measurements for cardiovascular risk factors and biomarkers of cardiovascular disease (CVD). Vascular and endothelial function will be measured by brachial artery flow-mediated dilatation (FMD), carotid intima-media thickness (IMT) assessments, and retinal blood vessel analyses, along with vascular endothelial biomarkers and cogualation markers. The correlation between HIV-infection in COVID-19 PLHIV with or without ART and its role in enhancement of cardiovascular risk and endothelial dysfunction will be assessed. Potential changes in these endpoints by COVID-19 will be followed for 4 weeks across the three groups (PLHIVwith or without ART and HIV negatives). Impact of project: The ENDOCOVID project aims to evaluate in the long-term the cardiovascular risk and vascular endothelial function in PLHIV thus revealing an important transitional cardiovascular phenotype in COVID-19.

Start: February 2021
Study of the Effects of Farnesoid X Receptor (FXR) Ligands on the Reactivation of Latent Provirus

The Farnesoid X receptor (FXR) is a nuclear receptor that controls the transcription of many genes involved in lipid and glucose metabolism. A recent study opens the hypothesis that Farnesoid X receptor also participates in deoxyribonucleic acid repair mechanisms and possibly in the fight against cell invasion by foreign genomes. This hypothesis implied that modulation of Farnesoid X receptor by ligands could modify Human Immunodeficiency Virus replication. The results of in vitro studies with Human Immunodeficiency Virus-infected cell lines indicate that indeed the modulation of Farnesoid X receptor activity by its ligands induces stimulation of virus production rapidly followed by cell death; the overall effect is therefore antiviral. Farnesoid X receptor ligands have also shown an effect on the reactivation of proviruses in cellular models of viral latency studies. This last data raises the hope of being able to intervene on the reservoir of Human Immunodeficiency Virus. It is therefore crucial to confirm on quiescent CD4 + T lymphocytes of patients whose viral load is controlled by antiretroviral treatment combining several antiretrovirals the results obtained with the in vitro models. Providing proof of concept that Farnesoid X receptor agonists can reactivate latent proviruses will open new therapeutic perspectives for attacking the Human Immunodeficiency Virus reservoir with a view to achieving a functional cure for Acquired Immune Deficiency Syndrome. The objective of the study is to confirm ex vivo the data obtained in vitro with cellular models and laboratory viral strains. It is therefore necessary to show that Farnesoid X receptor agonists can reactivate latent viruses or proviruses present in quiescent CD4 + T circulating lymphocytes prepared from venous blood of HIV-positive patients under cART. Human Immunodeficiency Virus-positive patients will be any patients, irrespective of the viral genotype, who initiated antiretroviral therapy, regardless of the combination of antiretrovirals, away from primary infection, when they already had a complete western blot, indicating an evolution of the infection without treatment and constitution of an already evolved reservoir. Patients will have had an undetectable viral load since initiation of treatment with a follow-up of at least one year and will have at least 500 CD4 + T lymphocytes / mm3.

Start: January 2019
Gathering Records to Evaluate Antiretroviral Treatment-Malawi ( GREAT )

To achieve global goals for the treatment of HIV, most high-prevalence countries are experimenting with and scaling up differentiated service delivery models (DSD). A handful of efforts have been formally described and evaluated in the literature; many others are being implemented formally or informally under routine care, without a research or evaluation goal. For most countries, however, we have little evidence on the big picture-the proportion of clinics offering alternative models, eligibility criteria and the proportion of patients considered eligible, the number of patients actually participating, health outcomes such as viral suppression, empirical resource utilization compared to traditional care, variations among the models, duration of patient participation, fidelity to model guidelines, effects on clinic efficiency, and sustainability without external donor support. AMBIT is a set of data synthesis, data collection, and data analysis activities aimed at generating information for near- and long-term decision making and creating an approach and platform for ongoing evaluation of differentiated models of HIV treatment delivery in the future. The project will collect and analyze a wide range of existing data sets pertinent to DSD. This protocol is for an analysis of existing medical record data collected by the Ministry of Health, implementing partners, and other completed, ongoing, or new evaluations, trials, and observational studies. Outcomes to be reported include coverage/uptake of DSD, patients' outcomes, and distribution of each model. There will be no study interaction with individual patients, providers, caregivers, or others for this analysis.

Start: December 2019