NCT03409276

Evaluating the Safety and Immunogenicity of Env (A,B,C,A/E)/Gag (C) DNA and gp120 (A,B,C,A/E) Protein/GLA-SE HIV Vaccines, Given Individually or Co-administered, in Healthy, HIV-1-Uninfected Adults

A Phase 1 Clinical Trial to Evaluate the Safety and Immunogenicity of Polyvalent Env (A,B,C,A/E) / Gag (C) DNA and gp120 (A,B,C,A/E) Protein/GLA-SE HIV-1 Vaccines (PDPHV-201401) as a Prime-boost Regimen or Co-administered in Repeated Doses, in Healthy, HIV-1-Uninfected Adult Participants

• Status: Completed
• Phase: Phase 1
• Study type: Interventional
• Enrollment: 60 (actual)
• Sponsor: National Institute of Allergy and Infectious Diseases (NIAID) · NIH
• Sex: All
• Age: 18 Years – 50 Years
• Healthy volunteers: Accepted

Summary

The purpose of this study is to evaluate the safety, tolerability, and immunogenicity of env (A,B,C,A/E)/gag (C) DNA and gp120 (A,B,C,A/E) protein/GLA-SE HIV-1 vaccines (PDPHV-201401) as a prime-boost regimen or co-administered in repeated doses, in healthy, HIV-1-uninfected adults.

Detailed description

This study will evaluate the safety, tolerability, and immunogenicity of env (A,B,C,A/E)/gag (C) DNA and gp120 (A,B,C,A/E) protein/GLA-SE HIV-1 vaccines (PDPHV-201401) as a prime-boost regimen or co-administered in repeated doses, in healthy, HIV-1-uninfected adults. The study will be conducted in two parts (Part A and Part B). Participants in Part A will be randomly assigned to either Group 1 (Treatment) or Group 1 (Control). Participants in Group 1 (Treatment) will receive the gp120 (A,B,C,A/E) protein vaccine admixed with GLA-SE adjuvant on Day 0 and Month 2. Participants in Group 1 (Control) will receive placebo on Day 0 and Month 2. Researchers will evaluate study data from Part A before enrolling participants in Part B. Participants in Part B will be enrolled in either Groups 2 or 3. Within Group 2, participants will be randomly assigned to either Group 2 (Treatment) or Group 2 (Control). Participants in Group 2 (Treatment) will receive the env (A,B,C,A/E)/gag (C) DNA vaccine and placebo on Day 0 and Months 1 and 3. At Months 6 and 8, participants will receive the gp120 (A,B,C,A/E) protein vaccine admixed with GLA-SE adjuvant and a placebo vaccine. Participants in Group 2 (Control) will receive placebo on Day 0 and Months 1, 3, 6, and 8. Participants in Group 3 will be randomly assigned to either Group 3 (Treatment) or Group 3 (Control). Participants in Group 3 (Treatment) will receive the env (A,B,C,A/E)/gag (C) DNA vaccine and the gp120 (A,B,C,A/E) protein vaccine admixed with GLA-SE adjuvant on Day 0 and Months 1, 3, 6, and 8. Participants in Group 3 (Control) will receive placebo on Day 0 and Months 1, 3, 6, and 8. Study visits for participants in Part A will occur on Day 0, Week 2, and Months 2, 2.5, 5, and 8. Study visits for participants in Part B will occur on Day 0, Week 2, and Months 1, 1.5, 3, 3.5, 6, 6.5, 8, 8 + 1 Week, 8.5, 11, and 14. Visits may include physical examinations, blood and urine collection, HIV testing, risk reduction counseling, and questionnaires. Participants in Part B may also have optional saliva, semen, cervical fluid, rectal fluid, and stool sample collection. Study staff will contact all participants 12 months after the last vaccination for follow-up health monitoring.

Conditions

• HIV Infections

Interventions

Type	Name	Description
BIOLOGICAL	env (A,B,C,A/E)/gag (C) DNA Vaccine	Administered by intramuscular injection in the deltoid.
BIOLOGICAL	gp120 (A,B,C,A/E) Protein Vaccine	Administered by intramuscular injection in the deltoid.
BIOLOGICAL	Placebo	Sodium Chloride for Injection, USP 0.9%; Administered by intramuscular injection in the deltoid.
BIOLOGICAL	GLA-SE adjuvant	Administered by intramuscular injection in the deltoid.

Timeline

• Start date: 2018-03-16
• Primary completion: 2020-05-11
• Completion: 2020-10-22
• First posted: 2018-01-24
• Last updated: 2022-04-25
• Results posted: 2022-04-25

Locations

6 sites across 1 country: United States

Regulatory

• FDA-regulated drug study