National Institute of Allergy and Infectious Diseases (NIAID)
This Phase 1 study will evaluate the safety, tolerability, and immune responses of investigational CH505 HIV vaccine regimens in adults in overall good health without HIV. Participants will receive CH505 protein nanoparticle vaccines (DV901-NP) formulated with the investigational adjuvant ACU-026-001-1, followed by either CH505 protein nanoparticle (DV902-NP) or CH505 mRNA vaccine boosters. The study will assess the ability of these regimens to induce HIV-specific immune responses, including B-cell responses associated with the development of broadly neutralizing antibodies. An immunology cohort will also evaluate how the location of booster vaccination affects immune responses.
Inclusion Criteria: 1. Demonstrates an understanding of the study and is able and willing to complete the informed consent process. 2. At least 18 years old at screening and up to 55 years old on day of enrollment. 3. Available for clinic follow-up through the last clinic visit and willing to be contacted 12 months after the last study product administration of ACU-026-001-1. 4. Willing to undergo study procedures as outlined in the schedule of procedures. 5. Agrees not to enroll in another study of an investigational agent during participation in the trial. If a potential participant is alre…
CH505 HIV-1 envelope protein nanoparticle vaccine administered intramuscularly at doses of 100 mcg, 150 mcg, or 300 mcg, depending on study group. Administered with ACU-026-001-1 adjuvant.
CH505 HIV-1 envelope protein nanoparticle booster vaccine administered intramuscularly at doses of 100 mcg or 300 mcg with ACU-026-001-1 adjuvant.
CH505 HIV-1 envelope mRNA vaccine administered intramuscularly as a 100 mcg booster at Weeks 16 and 24.
CH505 HIV-1 envelope mRNA vaccine administered intramuscularly as a 100 mcg booster at Week 32.
Investigational lipid nanoparticle adjuvant administered in combination with DV901-NP or DV902-NP. Dose is 2 mg for Groups 1-3 and 1 mg for Groups 4-5.