300,000+ clinical trials. Find the right one.

54 active trials for Human Immunodeficiency Virus

Efficacy of BIC/F/TAF Versus Standard of Care in the Treatment of New HIV Infection Diagnoses in the Context of 'Test and Treat'

The administration of combination antiretroviral therapy (cART) to HIV-infected patients has been associated with a dramatic reduction in AIDS-related morbidity and mortality. Time to cART start is currently approximately 2-4 weeks after diagnosis, mostly deferred for reasons of waiting for baseline blood test results? in particular HIV genotype, CD4 count, OI screen and logistics of a consultant clinical review. Whilst there is a clear rationale for this delay there is a risk of loss to follow-up as well as the potential risk of onward viral transmission. The balance between "readiness" to start ART against pragmatic and practical safe initiation of treatment needs to be tested using currently available safe potent antiretroviral agents in a head-to-head comparison study to allow careful rigorous comparisons of outcomes. This study will recruit 36 newly diagnosed HIV patients to be started on treatment immediately upon diagnosis. This would optimally be within 7 days, for eligibility to the study up to 14 days will be permissible. Patients will be randomised to one of two open-label combination therapies known to be highly effective? Biktarvy or Symtuza. The patients will receive study treatment for 48 weeks. The two therapies will be compared by the change in HIV viral load from start of treatment to 12 weeks. Further clinical data will be recorded for the trial patients and exploratory investigations undertaken. As those recruited to the trial may not be representative of the full cohort of newly diagnosed HIV patients there will also be data collected on all newly diagnosed patients in a given period. This data will contribute to conclusions on the benefits and issues of implementing test and treat.

Start: September 2020
IMB-guided Intervention to Encourage PrEP Uptake Among Young Men Who Have Sex With Men

The proposed study will involve adolescent (17-24 years old) men who have sex with men (described as YMSM hereafter) who meet eligibility criteria to participate in each study. Prospective study candidates will receive a copy of the IRB-approved informed consent forms and, if they choose to participate, will provide consent before enrollment into this study. Involvement of human subjects is detailed in the Research Strategy portion of this proposal, Recruitment and Retention Plan, and Protection of Human Subjects sections. Briefly, we will develop and pilot a randomized controlled trial (RCT) to support HIV self-testing (HIVST) and pre-exposure prophylaxis (PrEP) uptake. Intervention content will be focused on constructs of the Information-Motivation-Behavioral Skills (IMB) model. To reduce cost and increase feasibility, we plan to incorporate previously developed content as much as possible-we see integration of this content as a major strength. We will include professionally produced videos about HIV testing and PrEP and other resources including the geo-targeted directories to find clinic settings that offer HIV testing and PrEP, all of which are publicly available. We believe our approach of guiding YMSM through intervention modules based on theory will help improve content retention/use and ultimately influence constructs posited to result in behavior change. We foresee using multiple forms of attention-matched material, media, and programming to engage (and retain engagement) of YMSM throughout the brief single-session intervention (45-60 minutes). Intervention content is subject to change depending on feedback from focus groups, survey results, YAB feedback, and usability testing. Primary endpoints of this study include HIVST and PrEP uptake, including stage of change towards HIVST and PrEP uptake. Secondary outcomes include changes in IMB model indicators (e.g., HIV prevention knowledge).

Start: June 2022
Study of People With HIV Infection Who Have High Viral Loads Despite Combination Antiretroviral Therapy

Background: - The human immunodeficiency virus (HIV) causes acquired immune deficiency syndrome (AIDS). Combination antiretroviral therapy (ART) drugs treat HIV infection. They generally decrease the amount of HIV virus in the blood (called viral load) to very low levels. This happens only if the drugs still fight HIV and if taken every day exactly as prescribed. When not taken as directed, or if the ART drugs are not strong enough, the virus can become resistant to them, and the ART will not work to control the virus. Researchers want to know how to control HIV in people who can t lower their viral load with their current ART drugs. Objective: -<TAB>To better control HIV in people who can t get a lower viral load even with ART drugs and to learn more about why the HIV is not under control. Eligibility: People at least 18 years old and with HIV. People who have been on at least two combinations of ART drugs (including current ART). People whose last two viral loads were greater than 1,000 copies/mL. Design: Participants will be screened with medical history, physical exam, and blood tests. Participants will then have a baseline visit. They will have another physical exam, blood tests, plus answer questions about what they know about HIV and ART, and how they take their ART. Participants will arrange to stay in the NIH hospital for 7 8 days. They will take their medications as usual. At the time to take the ART drugs, they will have to ask a nurse to bring them. If they forget, the nurse will bring them. Participants will meet with a doctor, pharmacist, social worker and nurse to discuss ways to help participants remember to take their drugs. Participants will have blood drawn about every other day. Researchers will study the test results. Some participants will be put on different ART drugs. If that happens, participants will have another NIH hospital stay for 7-8 days. Participants will have 4 follow-up visits over 12 weeks, then every 3 months for 2 years or more.

Start: February 2014
Impact of Integrated HIV/NCD Screening on HIV Testing Uptake and Engagement in HIV Care In Kisarawe, Tanzania

This study focuses on the integration of HIV and NCD screening and care. The investigators will conduct a randomized controlled trial examining the efficacy and cost-effectiveness of the intervention strategy in Kisarawe District, Tanzania, a rural area 40 KM southwest of Dar es Salaam. The study will match two similar HIV care and treatment centers (CTC) in the District, one of which will be randomized to receive the enhanced intervention which will integrate diabetes (DM) and hypertension (HTN) screening with the existing HIV testing program, and integrate care for DM and HTN into the HIV care program. Comparisons of the community HIV testing rates in the two communities, engagement in HIV care among those testing positive, and 24-month retention in HIV care will be assessed among a cohort of 107 newly enrolled patients per community. Specifically, the aims are to determine: Whether integrating DM and HTN screening with HIV testing will increase the uptake of community-level HIV testing. If integrating DM/HTN care with HIV care enhances engagement in HIV care. Whether integration of DM/HTN care with HIV care enhances retention in HIV care for those newly enrolled in HIV care. The cost-effectiveness of integrating NCD screening and care with HIV screening and care with regard to the incremental cost per HIV infected client engaged in HIV care, and cost per newly enrolled HIV client retained in HIV care over 24-months.

Start: February 2018
Impact of Representative Payee Services on ART Adherence Among Marginalized People Living With HIV/AIDS

Client-Centered Representative Payee is a structural intervention that provides financial management support to PLWHA by modifying the implementation of a long-standing policy within the Social Security Administration, in which an organization is authorized to serve as the client's payee. The central hypothesis of this study is that by helping clients to pay rent and other bills on time, housing stability will improve and financial stress will decrease. By reducing the cognitive burden of living with chronic financial stress and frequent threats of housing loss, clients can devote more time and attention to medical appointments and medication adherence. It is further hypothesized that these changes will improve clients' self-efficacy for health behaviors, retention in care, medication adherence, and viral loads. These hypotheses will be tested via the following specific aims: (1) Conduct a randomized controlled trial with two randomized arms (n=160) and two non-randomized arms (n=50) to test the effect of Client-Centered Rep Payee on ART adherence and viral load among PLWHA who are economically disadvantaged and unstably housed. Clinical adherence will be compared through behavioral and biological measures including prescription refill data, self-reported appointment adherence, and viral load for patients receiving the intervention versus those receiving standard of care. (2) Test underlying mechanisms associated with Client-Centered Rep Payee that contribute to changes in medication adherence and viral suppression rates. This will be accomplished via use of quantitative (mediation analysis) and qualitative (semi-structured interview) methods to test hypothesized mediators of medication adherence and viral suppression including financial and housing instability, financial stress, self-efficacy for health behaviors, and retention in care. (3) Assess the cost and cost-effectiveness of the Client-Centered Rep Payee model. An economic analysis will be conducted to model the impact of the intervention as compared with standard of care on quality adjusted life years as well as new infections averted. This approach is innovative because it offers a structural intervention to improve adherence by addressing the effects of economic insecurity, requires low financial investment, and can be layered with existing clinical services. Further, it is highly scalable as it builds on a current policy in practice within the Social Security system.

Start: May 2017
Molecular Characterization of Viral-associated Tumors, Tumors Occurring in the Setting of HIV or Other Immune Disorders and Castleman Disease

Background: A person s genome is the collection of all their genes. A gene instructs individual cells to make proteins. Proteins are involved in all of our body s chemical processes. Genome sequencing allows researchers to find variations in genes. Some of these are normal and are not known to cause disease. Some variants are known to cause or affect diseases like cancer. Researchers want to study genetic variants in people with cancer who also have an immunologic disease like HIV. Objective: To study the biology of cancer in order to improve ways to prevent, detect, and treat it. Eligibility: Adults at least 18 years old with certain cancers and/or immunodeficiencies Design: Participants will be screened with medical history, physical exam, and lab tests. Participants will give samples of one or more tissue type. They may give blood or urine samples. Researchers may get samples of tissue when participants have surgery or when the participants are on other protocols in the NCI. Participants may have a procedure to have tissue samples removed. Researchers may collect data from participant medical records. Researchers will compare the genes in a participant s cancer tissue to their normal tissue. They may use the tissue cells to grow new cells in a lab. Participants may be contacted about the results. The samples will be stored for future research. No personal data will be kept with them. ...

Start: December 2017
A Single Dose of Pembrolizumab in HIV-Infected People

Background: Human immunodeficiency virus (HIV) attacks the immune system. Some people with HIV have a low CD4+ T-cell count despite taking antiviral medicines that control HIV replication. These cells fight disease, so a low count makes it easier for people to become sick. Researchers want to see if a new drug can improve the immune system, including T cells. The drug is called pembrolizumab Objective: To see if pembrolizumab is safe to use in people with HIV who have a low CD4+ T cell count despite taking medcines that control HIV replication, and to see if it strengthens the immune system. Eligibility: People age 18 years or older with HIV who are taking antiretroviral drugs as treatment, have blood HIV levels below detection limits of commercial assays, and have a low CD4+ T-cell count (below 350 cells/mm3). Design: Participants will be screened with: Medical history Physical exam Heart, blood, and urine tests Sexually active participants must use 2 kinds of birth control. Participants will have leukapheresis. Blood will be removed through a needle in one arm. A machine will remove white blood cells. The rest of the blood will be returned into the other arm. Participants will have a baseline visit. They will have blood tests. They may have a pregnancy test. A needle will insert a thin plastic tube (IV) into an arm vein. The participants will get the study drug or a placebo through the IV for 30 minutes. They will be watched for a couple hours after. Participants will have 11 follow-up visits over the next 48 weeks. They will have a physical exam, vital signs, medical review, and blood tests. Participants may have another leukapheresis. Participants will be called every 12 weeks after their last follow-up visit to talk about how they feel and their health. Participation ends after the week 96 phone call. ...

Start: August 2018