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A Study to Learn About Flu and COVID-19 Vaccine Responses in Healthy People

NCT06683352 · Status: COMPLETED · Phase: PHASE1/PHASE2 · Type: INTERVENTIONAL · Enrollment: 1353

Last updated 2025-08-15

No results posted yet for this study

Summary

This study is to learn about flu and COVID vaccines, either alone or when mixed together. Healthy people aged 18 or older can join. Participants will get one shot in each arm, either a flu or COVID vaccine, alone or mixed. The study lasts about 6 months, and participants need to visit the research site at least 3 times.

Conditions

Interventions

BIOLOGICAL

Investigational Influenza Vaccine

Investigational Influenza Vaccine

BIOLOGICAL

COVID-19 Vaccine

Pfizer-BioNTech COVID-19 Vaccine

COMBINATION_PRODUCT

Influenza and COVID Combination Vaccine

Combined investigational influenza and Pfizer-BioNTech COVID-19 Vaccine

BIOLOGICAL

Licensed Influenza Vaccine 1

Licensed Influenza Vaccine 1

BIOLOGICAL

Licensed Influenza Vaccine 2

Licensed Influenza Vaccine 2

OTHER

Placebo

Saline

Sponsors & Collaborators

Principal Investigators

  • Pfizer CT.gov Call Center · Pfizer

Study Design

Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
QUADRUPLE
Model
PARALLEL

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2024-11-11
Primary Completion
2025-07-15
Completion
2025-07-15
FDA Drug
Yes

Countries

  • United States

Study Locations

More Related Trials

Entities

Drugs
Diseases
Companies

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 NCT06683352 on ClinicalTrials.gov