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First-in-Human Clinical Trial of a Mosaic Quadrivalent Influenza Vaccine Compared With a Licensed Inactivated Seasonal QIV in Healthy Adults

NCT04896086 · Status: COMPLETED · Phase: PHASE1 · Type: INTERVENTIONAL · Enrollment: 63

Last updated 2025-04-27

Study results available
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Summary

Background:

Influenza (flu) is a contagious respiratory illness. It is caused by influenza viruses that infect the nose, throat, and sometimes the lungs. Vaccines are given to teach the body to prevent or fight infection. Researchers want to study a new vaccine to prevent the seasonal flu.

Objective:

To see if the FluMos-v1 vaccine is safe and how the body responds to it.

Eligibility:

Healthy adults ages 18-50 years inclusive were enrolled.

Design:

Participants were screened through a separate protocol.

Participants were tested for COVID-19. They may have had a pregnancy test.

Participants received the investigational FluMos-v1 vaccine or the licensed inactivated seasonal quadrivalent influenza vaccine Flucelvax injected in the upper arm.

Participants completed a diary card for 7 days. They recorded any symptoms they had. They were given a thermometer to check their temperature. They were also given a ruler to measure any skin changes at the injection site.

Participants had about 10 study visits. They were asked how they were feeling and if they had taken any medications. They had blood drawn.

Some participants had an optional apheresis. Blood was removed through a needle in a vein in one arm. A machine separated the white blood cells. The rest of the blood was returned through a needle in a vein in the other arm.

Participation lasted for 40 weeks.

Conditions

Interventions

DRUG

VRC-GENADJ0110-AP-NV (Adjuplex)

Adjuplex is a sterile, pyrogen-free adjuvant solution produced by the VRC Pilot Plant. Adjuplex comprises highly purified de-oiled soy lecithin and benzene-free carbomer homopolymer formulated in phosphate buffered saline. Adjuplex adjuvant was mixed with FluMos-v1 at 20% by volume in the pharmacy during product preparation for the vaccinations of Groups 5A-5B.

BIOLOGICAL

Flucelvax

Flucelvax is an inactivated influenza vaccine licensed for the 2020-2021 season.

DRUG

VRC-FLUMOS0111-00-VP (FluMos-v1)

FluMos-v1 investigational vaccine is composed of engineered pentameric promoters based on C. albicans lumazine synthase assembled with 20 trimeric promoters displaying HA ectodomains. It contains hemagglutinin (HA) proteins from the following 4 influenza strains: A/Idaho/07/2018, A/Perth/1008/2019, B/Colorado/06/2017 and B/Phuket/3073/2013.

Sponsors & Collaborators

  • National Institute of Allergy and Infectious Diseases (NIAID)

    lead NIH

Principal Investigators

  • Lesia Dropulic, M.D. · National Institute of Allergy and Infectious Diseases (NIAID)

Study Design

Allocation
NON_RANDOMIZED
Purpose
PREVENTION
Masking
NONE
Model
SEQUENTIAL

Eligibility

Min Age
18 Years
Max Age
50 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2021-05-24
Primary Completion
2024-01-25
Completion
2024-01-25
FDA Drug
Yes

Countries

  • United States

Study Locations

More Related Trials

Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT04896086 on ClinicalTrials.gov