A Randomized, Double-blinded, Placebo-controlled, Dose-escalation Phase 1 Clinical Trial to Evaluate the Safety and Immunogenicity of Recombinant HIV Envelope Protein BG505 SOSIP.664 gp140 Vaccine, Adjuvanted, in Healthy, HIV-1 Uninfected Adults
Overview
- Phase
- Phase 1
- Intervention
- Not specified
- Conditions
- HIV Infections
- Sponsor
- International AIDS Vaccine Initiative
- Enrollment
- 61
- Locations
- 3
- Primary Endpoint
- Proportion of volunteers in each group with potential immune-mediated diseases (pIMD) from the day of injection throughout the study period
- Status
- Completed
- Last Updated
- 2 years ago
Overview
Brief Summary
This a phase 1 first-in-human clinical trial to evaluate the safety, tolerability, and immunogenicity of BG505 SOSIP.664 gp140 Vaccine, Adjuvanted, in up to 60 healthy adult HIV-uninfected volunteers.
Detailed Description
This a phase 1 first-in-human clinical trial to evaluate the safety, tolerability, and immunogenicity of BG505 SOSIP.664 gp140 Vaccine, Adjuvanted, in up to 60 healthy adult HIV-uninfected volunteers. BG505 SOSIP.664 gp140 is a stable, soluble, cleaved HIV envelope trimer formulated in 0.55mL at 2mg/mL in 20 mM Tris, 100 mM NaCl, pH 7.5 and will be administered IM.
Investigators
Eligibility Criteria
Inclusion Criteria
- •Healthy male and female, including transgender individuals, as assessed by a medical history, physical exam, and laboratory tests
- •At least 18 years of age on the day of screening and has not reached his/her 51st birthday on the day of first vaccination
- •Willing to comply with the requirements of the protocol and available for follow-up for the planned duration of the study
- •In the opinion of the Principal Investigator or designee and based on Assessment of Informed Consent Understanding results, has understood the information provided and potential impact and/or risks linked to vaccination and participation in the trial; written informed consent will be obtained from the volunteer before any study-related procedures are performed
- •Willing to undergo HIV testing, risk reduction counselling and receive HIV test results
- •All volunteers born female engaging in sexual activity that could lead to pregnancy must commit to use an effective method of contraception for 4 months following investigational product administration
- •All volunteers born female, who are not heterosexually active at screening, must agree to utilize an effective method of contraception if they become heterosexually active
- •All volunteers born female must be willing to undergo urine pregnancy tests at time points indicated in the Schedule of Procedures (Appendix A and B)
- •All sexually active volunteers born male, regardless of reproductive potential, must be willing to use an effective method of contraception (such as consistent condom use) from the day of first vaccination until at least 4 months after the last vaccination to avoid exposure of partners to investigational product in ejaculate and to prevent conception with female partners
- •Willing to forgo donations of blood, or any other tissues during the study and, for those who test HIV-positive due to vaccine-induced antibodies, until the anti-HIV antibody titers become undetectable
Exclusion Criteria
- •Confirmed HIV-1 or HIV-2 infection
- •Any clinically relevant abnormality on history or examination including history of immunodeficiency or autoimmune disease; use of corticosteroids (the use of topical, nasal, or inhaled steroids is permitted), immunosuppressive, anticancer, anti-tuberculosis or other medications considered significant by the investigator within the previous 6 months. The following exceptions are permitted and will not exclude study participation: use of corticosteroid nasal spray for rhinitis, topical corticosteroids for an acute uncomplicated dermatitis; or a short course (duration of 10 days or less, or a single injection) of corticosteroid for a non-chronic condition (based on investigator clinical judgment) at least 2 weeks prior to enrolment in this study
- •Any clinically significant acute or chronic medical condition that is considered progressive or in the opinion of the investigator makes the volunteer unsuitable for participation in the study
- •Reported risky behavior for HIV infection within 12 months prior to vaccination
- •If female, pregnant or planning a pregnancy during the period of enrolment until 4 months after the last study vaccination; or lactating
- •Bleeding disorder that was diagnosed by a physician (e.g., factor deficiency, coagulopathy or platelet disorder that requires special precautions.) (Note: A volunteer who states that he or she has easy bruising or bleeding, but does not have a formal diagnosis and has IM injections and blood draws without any adverse experience, is eligible)
- •Infectious disease: chronic hepatitis B infection (HbsAg-positive), current hepatitis C infection (for US sites: HCV Ab positive and HCV RNA positive, for African site: HCV Ab positive only) treatment for chronic hepatitis C infection in the past year, or active syphilis (positive RPR confirmed by TPHA); active tuberculosis (for African site only)
- •History of splenectomy
- •Any of the following abnormal laboratory parameters listed below:
- •Absolute Neutrophil Count (ANC) - all volunteers: ≤1,000/mm3
Outcomes
Primary Outcomes
Proportion of volunteers in each group with potential immune-mediated diseases (pIMD) from the day of injection throughout the study period
Time Frame: 18 months
To evaluate the proportion of volunteers in each group with potential immune-mediated diseases (pIMDs) based on a defined list of pIMDs in the study protocol.
Proportion of volunteers with moderate or greater reactogenicity (i.e., solicited adverse events) during a 7-day follow-up period after each vaccination
Time Frame: 7 days post-vaccination
To evaluate the safety and tolerability of the study regimens based on the frequency of local and systemic reactogenicity events as assessed using the DAIDS Table for Grading the Severity of Adult and Pediatric Adverse Events (v2.1).
Proportion of volunteers with moderate or greater and/or vaccine related unsolicited adverse events (AEs), including safety laboratory (biochemical, haematological) parameters, from the day of each vaccination up to 28 days post each vaccination
Time Frame: 28 days post-vaccination
To evaluate the safety and tolerability of the study regimens based on the proportion of volunteers with moderate or greater unsolicited adverse events including safety laboratory as assessed using the DAIDS Table for Grading the Severity of Adult and Pediatric Adverse Events (v2.1).
Proportion of volunteers with vaccine-related serious adverse events (SAEs) throughout the study period
Time Frame: 18 months
To evaluate the safety and tolerability of the study regimens based on the proportion of volunteers with vaccine-related serious adverse events including safety laboratory as assessed using the DAIDS Table for Grading the Severity of Adult and Pediatric Adverse Events (v2.1).
Secondary Outcomes
- To assess immune responses elicited by the different BG505 SOSIP.664 gp140 Vaccine, Adjuvanted, doses:(20 months)