Active clinical trials for "HIV Infections"

CAB is an integrase inhibitor that is currently in Phase 2 clinical trials for the treatment and prevention of human immunodeficiency virus-1 (HIV-1) infection. RIF, a rifamycin used for treatment of tuberculosis (common co-infection in HIV-infected subjects), is a known inducer of uridine diphosphate (UDP)-glucuronosyltransferases (UGTs) and Cytochrome P450 3A4 (CYP3A4). CAB is primarily metabolized via UGT1A1 and UGT1A9, thus a drug interaction between CAB and RIF is possible. This study will be a phase I, single-center, open label, fixed-sequence cross-over study to compare the single dose PK of CAB oral 30 milligrams (mg) when co-administered with RIF 600 mg once daily at steady-state to those of CAB oral 30 mg administered alone. Fifteen subjects are planned to be enrolled to obtain 12 evaluable subjects for this study.

A clinical trial was conducted in 65 PLWH randomly allocated to receive standard hospital diet alone (Control group: n=33), or the diet combined with 100 g/day of RUTF (RUTF group: n=32). Individual dietary intakes were measured and compared to the Recommended Dietary Allowances (RDA) for PLWH. Body composition was measured by bio-impedance analysis (BIA), hemoglobin by HemoCue and plasma zinc concentration by atomic absorption spectrometry and adjusted to infection (CRP and α1-AGP). All measures were conducted at baseline, 3 weeks and after 9 weeks home-based follow up.

Influenza ('flu) can cause severe infections, especially in people with weakened immune systems such as those with HIV. For this reason, yearly vaccination is recommended with the standard 'inactivated' influenza vaccine to try and prevent infections in these populations. It is also recommended in all health care workers, to help prevent the spread of influenza within healthcare settings. However, having HIV infection may mean vaccines work less well in some people and the investigators do not completely understand why. An alternative to the standard 'inactivated' annual influenza vaccine is the 'live attenuated influenza vaccine' (LAIV), which means it consists of weakened versions of the influenza virus. Unlike the standard vaccine, which is given by injection, LAIV is a spray that is given into each nostril. It is now given to children in the UK in preference to the standard vaccine as it results in greater protection from influenza. In some other countries, like the USA, adults are also given LAIV, where it seems to work just as well as the standard vaccine. A few studies in the past have shown that LAIV is safe and effective in HIVinfected children and adults. The investigators want to give LAIV to HIVinfected and HIV negative individuals, to try to find out new information about how HIV infection may change the way in which people respond to vaccines. The investigators will do this by comparing both the early genetic response to the vaccines and later responses from cells specifically targeted to fight influenza ('Tcells'), in these groups. In the long term, the investigators hope that this will lead to designing new ways of improving the response to vaccines in HIVinfected people. As LAIV is given into each nostril, rather than an injection, the investigators also want to see if LAIV results in Tcells in the lung that are specifically targeted to fight influenza

Progressive HIV or HIV infection seems to be related to a preferential loss of CD4+ T lymphocytes, especially Th17+, within the mucosal intestinal lymphoid tissue, and with intestinal mucosal damage and bacterial product translocation, which correlates with the hyperactivation of the immune system, therefore with CD4+ T cell loss and prognosis. The objectives of this project are to investigate the correlation between the IL12/IL-23 imbalance and bacterial product translocation, and to study the polarization, infection or depletion of intestinal Th17 ex vivo. The investigators will test the effect of neutralizing anti-IL23 antibodies directed against p40, or less classically, anti- IL-23 p19.

This is an open-label, single group study to determine the pharmacokinetic profile of atazanavir 300 mg daily boosted with ritonavir 100mg daily in HIV-infected patients over a period of 9 days. Ritonavir and atazanavir are protease inhibitors used to treat HIV. However, ritonavir, when used at low doses (up to 100mg) does not have HIV activity, but will enhance (boost) the blood concentrations of other drugs like atazanavir. Recently, a study showed that taking 50mg of ritonavir administered in an oral solution led to similar blood concentrations of atazanavir than when given with 100mg of ritonavir. Potential benefits associated with a lower dose of ritonavir may include a reduction of side effects such as upset stomach and an improvement in cholesterol level. This study will look at the amount of atazanavir into your blood when given with ritonavir in a tablet formulation at 50mg or 100mg with standard atazanavir dose (300mg).

In sub-Saharan Africa (SSA), more than 300,000 babies with HIV die each year. HIV-infected children develop AIDS and die faster in SSA than those in developed countries. Bacille Calmette-Guerin (BCG) vaccine is given to infants at birth in SSA to protect them from severe forms of TB. BCG is known to cause immune cells to be active and replicate faster. The immune system of neonates also responds differently to BCG that to other vaccines and infections. We hypothesize that the routine immunization of neonates with BCG contributes to generalized immune activation in HIV-exposed infants resulting in skewed immune responses to vaccines and infections and increased rates of disease progression in those infants that become HIV-infected. However, delaying BCG until HIV testing is completed would result in operational difficulties, and may not induce the appropriate immune response. Delayed BCG would also render many HIV-exposed uninfected infants at high risk for disseminated TB. We plan to assess immune cells in infants to determine the impact of the timing of BCG vaccination on immune responses to tuberculosis (TB) and other vaccines. We will also compare the immune activation and disease progression of those infants that become HIV-infected in the BCG or control arms. Our results will provide key insights into the effect of BCG vaccination on immune responses to HIV as well as inform the optimal timing of BCG vaccination for HIV-exposed infants.

The purpose of this study is to determine whether an enhanced peer intervention is effective in retaining and re-engaging at-risk people of color living with HIV/AIDS into care.

The specific aim of the study is to assess antiretroviral therapy adherence and evaluate the impact of a situated treatment adherence intervention program among persons living with HIV/AIDS on antiretroviral therapy in Estonia.

The overall aim of this study is to reduce risk behaviors and increase health and behavioral health service utilization among disadvantaged, drug-using rural women at high risk for HIV and HCV. This project has potential to make a significant contribution to science by providing knowledge about the health, risk behaviors, and service utilization of a vulnerable and understudied group of women during a time of emerging and significant public health risk in a rural Appalachian setting. Successful completion of the aims of this project will advance the delivery of a low-cost, potentially high impact intervention with implications for a number of other real world settings (such as criminal justice venues) where other disadvantaged high-risk drug users can be identified and targeted for intervention.

To evaluate the PK, safety and tolerability of Cenicriviroc (CVC) administered with and without Dolutegravir (DTG) and CVC with and without a single dose of Midazolam in healthy subjects.