HIV Infections Clinical Trial
Official title:
Heplisav-B Revaccination for Hepatitis B Vaccine Nonresponders
The goal of this natural history study is to examine the immune responses to the Heplisav-B vaccine in Veterans living with HIV who were non-responders to prior HBV vaccination. A comparison group of HBV vaccine nonresponders without HIV infection will be enrolled to characterize the HIV-associated immune alterations that affect vaccine response. The investigators hypothesize that TLR9-mediated innate immune stimulation with Heplisav will elicit HBV seroprotection despite prior vaccination failures in persons living with HIV, compared to HIV uninfected individuals. Participants eligible for Heplisav-B vaccination will be asked to provide blood samples at multiple timepoints before and after their vaccination.
HIV-positive individuals are at increased risk of morbidity and mortality from Hepatitis B co-infection, due to shared routes of transmission, increased likelihood of developing chronic infection (as opposed to spontaneous clearance), and increased immune dysregulation leading to accelerated disease progression, and so current guidelines recommend the routine vaccination of HIV-positive individuals against HBV. However, because achieved seroprotection rates (SPR) are historically lower than in HIV-negative individuals, post-vaccination serologic testing is recommended for this group and re-vaccination (with increased dose or additional doses) should be attempted for those who were non-responders to the initial vaccine. Heplisav-B is a HBV vaccine adjuvanted with a TLR9 agonist that has shown improved SPR among groups with reduced response rates to classic alum-adjuvanted vaccines, such as those with CKD, obesity, or diabetes. The investigators propose to evaluate immunological mechanisms of protection in Veterans who were non-responders to prior HBV vaccination now receiving Heplisav vaccinations. The investigators will enroll a comparison group of HIV-negative individuals to characterize the HIV-associated immune alterations that modulate vaccine response. The investigators hypothesize that TLR9-mediated innate immune stimulation with Heplisav will elicit HBV seroprotection despite prior vaccination failures in persons living with HIV, compared to HIV uninfected individuals. By assessing innate immune responses and B cell immunophenotypes at baseline, post-vaccination, and at long-term followup in Veterans with and without HIV the investigators will assess the mechanisms by which the immunostimulatory effects of TLR9 agonists may overcome the immune dysfunction in these patients. ;
| Status | Clinical Trial | Phase | |
|---|---|---|---|
| Completed |
NCT05454514 -
Automated Medication Platform With Video Observation and Facial Recognition to Improve Adherence to Antiretroviral Therapy in Patients With HIV/AIDS
|
N/A | |
| Completed |
NCT03760458 -
The Pharmacokinetics, Safety, and Tolerability of Abacavir/Dolutegravir/Lamivudine Dispersible and Immediate Release Tablets in HIV-1-Infected Children Less Than 12 Years of Age
|
Phase 1/Phase 2 | |
| Completed |
NCT03141918 -
Effect of Supplementation of Bioactive Compounds on the Energy Metabolism of People Living With HIV / AIDS
|
N/A | |
| Completed |
NCT03067285 -
A Phase IV, Open-label, Randomised, Pilot Clinical Trial Designed to Evaluate the Potential Neurotoxicity of Dolutegravir/Lamivudine/Abacavir in Neurosymptomatic HIV Patients and Its Reversibility After Switching to Elvitegravir/Cobicistat/Emtricitabine/Tenofovir Alafenamide. DREAM Study
|
Phase 4 | |
| Recruiting |
NCT04579146 -
Coronary Artery Disease (CAD) in Patients HIV-infected
|
||
| Completed |
NCT06212531 -
Papuan Indigenous Model of Male Circumcision
|
N/A | |
| Active, not recruiting |
NCT03256422 -
Antiretroviral Treatment Taken 4 Days Per Week Versus Continuous Therapy 7/7 Days Per Week in HIV-1 Infected Patients
|
Phase 3 | |
| Completed |
NCT03256435 -
Retention in PrEP Care for African American MSM in Mississippi
|
N/A | |
| Completed |
NCT00517803 -
Micronutrient Supplemented Probiotic Yogurt for HIV/AIDS and Other Immunodeficiencies
|
N/A | |
| Active, not recruiting |
NCT03572335 -
Systems Biology of Diffusion Impairment in Human Immunodeficiency Virus (HIV)
|
||
| Completed |
NCT04165200 -
Fecal Microbiota Transplantation as a Therapeutic Strategy for Patients Infected With HIV
|
N/A | |
| Recruiting |
NCT03854630 -
Hepatitis B Virus Vaccination in HIV-positive Patients and Individuals at High Risk for HIV Infection
|
Phase 4 | |
| Terminated |
NCT03275571 -
HIV, Computerized Depression Therapy & Cognition
|
N/A | |
| Completed |
NCT02234882 -
Study on Pharmacokinetics
|
Phase 1 | |
| Completed |
NCT01618305 -
Evaluating the Response to Two Antiretroviral Medication Regimens in HIV-Infected Pregnant Women, Who Begin Antiretroviral Therapy Between 20 and 36 Weeks of Pregnancy, for the Prevention of Mother-to-Child Transmission
|
Phase 4 | |
| Recruiting |
NCT05043129 -
Safety and Immune Response of COVID-19 Vaccination in Patients With HIV Infection
|
||
| Not yet recruiting |
NCT06072443 -
AURORA Study-A Transformative Approach to Support PrEP Medication Persistence
|
||
| Not yet recruiting |
NCT05536466 -
The Influence of Having Bariatric Surgery on the Pharmacokinetics, Safety and Efficacy of the Novel Non-nucleoside Reverse Transcriptase Inhibitor Doravirine
|
N/A | |
| Recruiting |
NCT04985760 -
Evaluation of Trimer 4571 Therapeutic Vaccination in Adults Living With HIV on Suppressive Antiretroviral Therapy
|
Phase 1 | |
| Completed |
NCT05916989 -
Stimulant Use and Methylation in HIV
|