NCT06332339

Clinical Trial to Evaluate the Safety, Tolerability, and Immunogenicity of 16055 NFL Delta Gly4 Env Protein Trimer and Trimer 4571 Combined With 3M-052-AF + Alum Adjuvant and Ad4-Env145NFL Viral Particles as Heterologous Prime-boost Regimens in Adult Participants Without HIV.

A First-in-human Phase 1 Clinical Trial to Evaluate the Safety, Tolerability, and Immunogenicity of 16055 NFL Delta Gly4 Env Protein Trimer and Trimer 4571 Combined With 3M-052-AF + Alum Adjuvant and Ad4-Env145NFL Viral Particles as Heterologous Prime-boost Regimens in Adult Participants Without HIV

• Status: Active Not Recruiting
• Phase: Phase 1
• Study type: Interventional
• Enrollment: 45 (actual)
• Sponsor: National Institute of Allergy and Infectious Diseases (NIAID) · NIH
• Sex: All
• Age: 18 Years – 55 Years
• Healthy volunteers: Accepted

Summary

The goal of this clinical trial is to test 16055 NFL delta Gly4 Env protein trimer and Trimer 4571 combined with 3M-052-AF + Alum adjuvant and Ad4-Env145NFL viral particles as heterologous prime-boost regimens in adult participants without HIV. The main question\[s\] it aims to answer are: * Are these vaccine regimens safe and well tolerated? * Are the prime-boost vaccine regimens that include Ad4-Env145NFL and Trimer 4571 as heterologous boosts going contribute to the development of B-cell and antibody responses? Participants will attend scheduled study visits to receive their vaccine and will record symptoms on a daily eDiary.

Conditions

• HIV

Interventions

Type	Name	Description
BIOLOGICAL	16055 NFL delta Gly4 trimer	200 mcg admixed with 3M-052-AF, 5 mcg and Alum, 500 mcg to be administered as 2 separate IM injections (0.27 mL each)
BIOLOGICAL	Trimer 4571	100 mcg admixed with 3M-052-AF, 5 mcg and Alum, 500 mcg to be administered as 2 separate IM injections (0.2 mL each)
BIOLOGICAL	Ad4-Env145NFL, 5 x 108 viral particles (vp)	to be administered intranasally (IN) (0.07 mL into 1 nostril)

Timeline

• Start date: 2024-03-15
• Primary completion: 2026-11-11
• Completion: 2026-11-11
• First posted: 2024-03-27
• Last updated: 2024-11-05

Locations

6 sites across 1 country: United States

Regulatory

• FDA-regulated drug study