View clinical trials related to HIV-2 Infection.
Filter by:Combination antiretroviral therapy (cART) blocks intracellular human immunodeficiency virus (HIV) replication in CD4+ T-lymphocytes, but fails to eliminate latent HIV infected CD4+ T-lymphocytes. About 7 (range <1-100) in 106 of these cells are latently infected and can cause reactivation of proviral HIV when cART is stopped. These latently infected cells form the reservoir and must be targeted in order to cure HIV. We would like to further investigate this reservoir and assess potential interventions to eradicate it. One promising option is to further study the influence of HIV latency disruptors (latency reversing agents, LRA) on the HIV infected reservoir. These agents are used in shock and kill strategies that disrupt latency by LRA followed by the selective (induced) killing of the reservoir cell due to viro-pathogenic effects. For accurate assessment of the reservoir and potential cure strategies, including the impact of LRA on the reservoir, a large reservoir and sufficient cells for analysis are desirable. Our understanding on the reservoir comes from in vitro lymphocyte models and early ex vivo studies. Additional studies of patients with different clinical phenotypes including untreated versus treated versus the rare individuals that control HIV spontaneously are increasingly relevant to the field. Especially this last category represent biological examples of viral control without cART and are useful to study the factors that set them apart from those that need treatment for their HIV. This study aims to deepen our understanding of the HIV reservoir and cure strategies, foremost, shock and kill strategies. We will do this by setting up a durable ex vivo platform for HIV reservoir and cure studies of which the samples can be used for hypothesis generation for in-vivo studies. A project from the Erasmus MC HIV Eradication Group (EHEG).
The objective of this study is the collection and testing of clinical samples to determine the clinical performance of the Access HIV Ag/Ab Combo assay on the DxI 9000 Access Immunoassay Analyzer
A prospective non-interventional cohort study at Erasmus MC of adult chronic HIV infected patients of ≥18 years of age who initiate antiretroviral therapy in routine care.
The HIV2 study is an open cohort of prospective, multicentric, national observation. The main objective is to study HIV-2 infection in adult patients followed in France.
Prospective, longitudinal, open label, HIV-2 viral load and antiretroviral resistance informed 2nd-line ARV implementation study.
There is a critical need for safe and effective antiretroviral treatment (ART) regimens for HIV-2 infection. This is especially true in West Africa, where the vast majority of the 1-2 million individuals infected with HIV-2 live and were access to effective ART for HIV-2 is limited. HIV-2 is intrinsically resistant to non-nucleoside reverse transcriptase inhibitors (NNRTI) and the fusion inhibitor enfuvirtide (T-20) and mutations conferring broad resistance to nucleoside/nucleotide reverse transcriptase inhibitors (NRTI) are frequently observed in HIV-2 from patients receiving ART. Although antiretroviral protease inhibitors (PI) can be used effectively to treat HIV- 2, HIV-1 and HIV-2 also exhibit important differences in their susceptibilities with studies indicating that saquinavir (SQV), lopinavir (LPV), and darunavir (DRV) are the only potent PI's against HIV-2 replication and cross-resistance is frequent. Although an increasing body of evidence supports the potential utility of integrase inhibitors (INI) against HIV-2, there have been no clinical trials to assess their effectiveness and they are not routinely available in resource-limited settings. These limitations present major challenges to HIV-2 treatment, particularly in the areas in which it is most prevalent. This study is the 1st use of STRIBILD (elvitegravir (EVG), cobicistat (COBI), emtricitabine (FTC), tenofovir disoproxil fumarate (TDF)), an INI-based single tablet regimen, in HIV-2 infected adults in West Africa. The investigators hypothesize STRIBILD will be safe and effective as ART for HIV-2 infection. The Specific Aims of this study are: AIM 1: A pilot, open label, 48 week trial of STRIBILD (elvitegravir, cobicistat, emtricitabine, tenofovir disoproxil fumarate) in 30 ARV-naïve HIV-2 Infected Adults in Dakar, Senegal. AIM 2: Determination of genotypic and phenotypic HIV-2 antiretroviral resistance in individuals with virologic failure (HIV-2 plasma RNA >250 copies/ml) participating in the 48 week trial of STRIBILD
FIT-2 is a multi-country, phase IIb, randomized, non-comparative study, carried out in West Africa (Côte d'Ivoire, Burkina Faso, Senegal, Togo). ARV-naïve HIV-2 infected adult patients will be recruited and followed during 96 weeks. The objective is to evaluate the efficacy and safety of 3 first-line treatments in HIV-2 infected adult patients, in West Africa. A treatment will be considered as effective if more than 55% of patients in that arm attain "global success" at 96 weeks.
The HIV-2 is less common ie 1-2 million people in West Africa. HIV-2 does have the same sensitivity to antiretroviral treatment (ART) compared to HIV-1. The ART strategies that are appropriate for the HIV-1 infection are not as effective for HIV-2. Classical triple therapy including PI is less effective for HIV-2. Also, the choice of ARTs in a second line treatment is limited. The first line optimal treatment has to be defined by a prospective and randomized evaluation of other strategies. The primary endpoint will be adapted to the specificity of the HIV-2 infection. The 1st step is to define, with a phase II clinical trial, whether a strategy including 2 NRTIs and raltegravir, as an alternative strategy to the classical triple therapy, shows an immunovirological response, at least, as good as the one obtained with the triple therapy. The hypothesis is that the low ART response observed in HIV-2 infection is due to a low virological strength of the ARTs used and that the combination of 2 NRTIs and raltegravir should show a therapeutic success of at least 50% at week 48.