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Completed Phase 3 Interventional Accepts healthy volunteers Results available

Phase 3 Pivotal Trial of NanoFlu™ in Older Adults

ClinicalTrials.gov ID: NCT04120194

Public ClinicalTrials.gov record NCT04120194. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Sep 5, 2026, 11:01 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

A Phase 3, Randomized, Observer-blinded, Active-controlled Trial to Evaluate Immunogenicity & Safety of a Recombinant Quadrivalent Nanoparticle Influenza Vaccine (Quad-NIV) With Matrix-M1™ Adjuvant Against Fluzone® Quadrivalent in Clinically Stable Adults ≥ 65 Years of Age

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

A Phase 3, randomized, observer-blinded, active-controlled trial to evaluate the immunogenicity and safety of a recombinant quadrivalent nanoparticle influenza vaccine with Matrix-M1 adjuvant (NanoFlu) compared with a licensed quadrivalent inactivated influenza vaccine in adults ≥ 65 years of age. Both vaccines were formulated with the 4 influenza strains recommended for the 2019-20 Northern hemisphere influenza season. 2654 subjects were enrolled and randomized into 1 of 2 treatment groups to receive either NanoFlu or active comparator. Subjects were followed for approximately 1 year following injection; with primary immunogenicity analyses based on Day 28 sera. This trial was conducted in the United States at approximately 19 clinical sites.

Study identification

NCT ID
NCT04120194
Recruitment status
Completed
Study type
Interventional
Phase
Phase 3
Lead sponsor
Novavax
Industry
Enrollment
2,654 participants

Conditions and interventions

Interventions

Biological

Eligibility (public fields only)

Age range
65 Years and older
Sex
All
Healthy volunteers
Accepts healthy volunteers

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Oct 13, 2019
Primary completion
Oct 28, 2020
Completion
Dec 12, 2020
Last update posted
May 5, 2023

2019 – 2020

United States locations

U.S. sites
19
U.S. states
14
U.S. cities
19
Facility City State ZIP Site status
US135 Hollywood Florida 33024
US045 Savannah Georgia 31406
US013 Stockbridge Georgia 30281
US012 Meridian Idaho 83642
US032 Nampa Idaho 83687
US003 Lenexa Kansas 66219
US138 Rockville Maryland 20854
US025 Norfolk Nebraska 68701
US018 Omaha Nebraska 68134
US056 Binghamton New York 13901
US017 Endwell New York 13760
US030 Cleveland Ohio 44122
US053 Oklahoma City Oklahoma 73112
US044 Warwick Rhode Island 02886
US079 Mt. Pleasant South Carolina 29464
US050 Dakota Dunes South Dakota 57049
US029 Nashville Tennessee 37203
US004 San Antonio Texas 78229
US073 Tomball Texas 77375

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT04120194, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted May 5, 2023 · Synced Sep 5, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT04120194 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →