A Phase 1 interventional study of VSV-Indiana HIV gag vaccine and Placebo injection (normal saline) in HIV Infections, sponsored by National Institute of Allergy and Infectious Diseases (NIAID). Completed at 4 sites in United States. Open to participants aged 18 Years to 50 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2021-10-15.
Sponsored by National Institute of Allergy and Infectious Diseases (NIAID) · Phase 1, Interventional, and Prevention
The purpose of this study is to evaluate the safety and immune response to an HIV vaccine in HIV-uninfected adults. Study researchers will also determine the maximum dose of the vaccine that participants can safely receive.
Many HIV vaccines that are in development use a virus vector to deliver the vaccine into the body's cells in order to elicit an immune response. Vesicular stomatitis virus (VSV) is a vector that has been studied in animals. As an HIV vaccine vector, it has been shown to prevent disease progression in monkeys infected with simian/human immunodeficiency virus (SHIV). This study will evaluate the safety and immune response to the VSV-Indiana (one type of VSV vector) HIV gag vaccine in healthy, HIV-uninfected adults. In addition, study researchers will determine the maximum dose of the vaccine that can be safely tolerated.
This study will enroll healthy, HIV-uninfected adults. Five groups of participants will be enrolled, with each subsequent group receiving a slightly higher dose of the vaccine. Within each group, participants will be randomly assigned to receive the study vaccine or a placebo vaccine. Study researchers will examine safety data and how participants react to the study vaccine before enrolling the next group of participants. At baseline and Week 8, participants will receive two injections of the study vaccine or placebo vaccine-one in each upper arm at each time point. At the baseline study visit, all participants will undergo a physical examination; mouth examination; a medical and medication history review; and saliva, blood, and urine collection. Female participants will also take a pregnancy test. Participants will complete questionnaires to assess mental status and receive counseling on HIV risk reduction and pregnancy prevention. After receiving the vaccine, participants will remain in the clinic for at least 30 minutes for observation and monitoring of side effects. For 7 days after the vaccination, participants will record any side effects in a symptom log.
Participants will attend study visits 3 days and 1 and 2 weeks after the baseline study visit, at Week 8 for the second vaccination, 3 days and 1 and 2 weeks after the Week 8 visit, and at Months 5 and 8. Follow-up study visits will include select baseline study procedures. Participants will be contacted annually for 3 years for follow-up health monitoring.
4,258 studies on the registry are indexed under HIV Infections; 240 are open to participants now.
This study's enrollment of 60 is below the median of 83 across 3,251 interventional studies indexed under HIV Infections.
Browse HIV Infections studies →National Institute of Allergy and Infectious Diseases (NIAID) is the lead sponsor of 2,401 studies on the registry; 179 are open to participants now.
Of its 396 completed or terminated interventional studies of FDA-regulated products, 294 (74%) have results posted.
Counted across the registry records on this site, refreshed daily.
Exclusion Criteria:
Hypertension:
Participants will receive 1 x 10\^4 PFU of the study vaccine by intramuscular (IM) injection in each deltoid at baseline and Week 8. (1 x 10\^4 PFU is the nominal dose; the actual dose is 4.6 x 10\^3 PFU given as 2.3 x 10\^3 PFU in each deltoid)
Biological: VSV-Indiana HIV gag vaccine
Participants will receive placebo by IM injection in each deltoid at baseline and Week 8.
Biological: Placebo injection (normal saline)
Participants will receive 1 x 10\^5 PFU of the study vaccine by IM injection in each deltoid at baseline and Week 8. (1 x 10\^5 PFU is the nominal dose; the actual dose is 4.6 x 10\^4 PFU given as 2.3 x 10\^4 PFU in each deltoid)
Biological: VSV-Indiana HIV gag vaccine
Participants will receive placebo by IM injection in each deltoid at baseline and Week 8.
Biological: Placebo injection (normal saline)
Participants will receive 1 x 10\^6 PFU of the study vaccine by IM injection in each deltoid at baseline and Week 8. (1 x 10\^6 PFU is the nominal dose; the actual dose is 4.8 x 10\^5 PFU given as 2.4 x 10\^5 PFU in each deltoid)
Biological: VSV-Indiana HIV gag vaccine
Participants will receive placebo by IM injection in each deltoid at baseline and Week 8.
Biological: Placebo injection (normal saline)
Participants will receive 1 x 10\^7 PFU of the study vaccine by IM injection in each deltoid at baseline and Week 8. (1 x 10\^7 PFU is the nominal dose; the actual dose is 4.2 x 10\^6 PFU given as 2.1 x 10\^6 PFU in each deltoid)
Biological: VSV-Indiana HIV gag vaccine
Participants will receive placebo by IM injection in each deltoid at baseline and Week 8.
Biological: Placebo injection (normal saline)
Participants will receive 1 x 10\^8 PFU of the study vaccine by IM injection in each deltoid at baseline and Week 8. (1 x 10\^8 PFU is the nominal dose; the actual dose is 3.4 x 10\^7 PFU given as 1.7 x 10\^7 PFU in each deltoid)
Biological: VSV-Indiana HIV gag vaccine
Participants will receive placebo by IM injection in each deltoid at baseline and Week 8.
Biological: Placebo injection (normal saline)
Administered IM in both deltoids at baseline and Week 8. Dose will vary depending on which group the participant is enrolled in.
Administered IM in both deltoids at baseline and Week 8.
Change in frequency and severity of local injection site reactogenicity signs and symptoms
Pain, tenderness, erythema, induration, and maximum severity of pain and/or tenderness; frequency and severity of systemic reactogenicity signs and symptoms: fever, malaise/fatigue, myalgia, headache, nausea, vomiting, chills, arthralgia, and maximum severity of systemic symptoms
Time frame: Measured at Days 0, 1, 2, 4, 5, 6, 7, 60, 61, 62, 63, 64, 65, 66, and 67
Frequency of adverse events (AEs) categorized by Medical Dictionary for Regulatory Activities (MedDRA) body system
Frequency of AEs categorized by MedDRA body system, MedDRA preferred term, severity and assessed relationship to study products; detailed description of all serious adverse events (SAEs)
Time frame: Participants will be followed for the duration of the study, an expected average of 8 months
Change in distribution of values of safety laboratory measures
White blood cells (WBCs), neutrophils, lymphocytes, hemoglobin, alkaline phosphatase, platelets, alanine aminotransferase (ALT), aspartate aminotransferase (AST), and creatinine at baseline and at follow-up visits postvaccination
Time frame: Measured at Days 3, 5, 9, and 140
Number of participants with early discontinuation
Number of participants with early discontinuation of vaccinations and reason for discontinuation
Time frame: Participants will be followed for the duration of the study, an expected average of 8 months
Change in response rates of CD4 T-cell responses
Response rates of CD4 T-cell responses measured by intracellular cytokine staining (ICS) for interferon gamma (IFN-gamma) and/or interleukin (IL)-2 to HIV potential T-cell epitope (PTE) peptide pools representing Gag
Time frame: Measured at Days 7, 14, 68, and 70
Change in response rates of CD8 T-cell responses
Response rates of CD8 T-cell responses measured by ICS for IFN-gamma and/or IL-2 to HIV PTE peptide pools representing Gag
Time frame: Measured at Days 7, 14, 68, and 70
Change in response rates of T-cell responses
Response rates of T-cell responses as measured by IFN-gamma enzyme-linked immunospot (ELISpot) (at the option of the HVTN Laboratory Program)
Time frame: Measured at Days 7, 14, 68, and 70
Change in induction of binding antibodies to HIV-1 gag
Induction of binding antibodies to HIV-1 gag
Time frame: Measured at Days 7, 14, and 70
This study is completed, as verified in Oct 2021. You cannot join it, but the record below documents what was studied.
Get an email when the registry record changes — status, dates, results — or when someone posts here.
Sign in to followQuestions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.
Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.
Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.
National Institute of Allergy and Infectious Diseases (NIAID)