NCT06482359

Brief Summary

The goal of Phase 3 Study is Comparing the Safety and Immune Response of Three Batches of a COVID-19 and Flu Combination Vaccine in Seniors Aged 65+

Trial Health

45
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Timeline
1mo left

Started Feb 2025

Typical duration for phase_2 covid19

Status
withdrawn

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress98%
Feb 2025May 2026

First Submitted

Initial submission to the registry

June 27, 2024

Completed
4 days until next milestone

First Posted

Study publicly available on registry

July 1, 2024

Completed
7 months until next milestone

Study Start

First participant enrolled

February 1, 2025

Completed
10 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 16, 2025

Completed
6 months until next milestone

Study Completion

Last participant's last visit for all outcomes

May 17, 2026

Expected
Last Updated

March 11, 2025

Status Verified

March 1, 2025

Enrollment Period

10 months

First QC Date

June 27, 2024

Last Update Submit

March 6, 2025

Conditions

Keywords

COVID-19Influenza

Outcome Measures

Primary Outcomes (3)

  • Numbers of participants with solicited local and systemic AEs.

    Numbers of participants with solicited local and systemic AEs over the 7 days post-vaccination.

    7 days post-vaccination]

  • Numbers of participants reporting Unsolicited AEs and medically attended adverse events (MAAEs).

    Numbers of participants reporting unsolicited AEs and medically attended adverse events (MAAEs) over 28 days post-vaccination.

    28 days post-vaccination.

  • Number of participants with MAAEs, SAEs, AESIs (including [PIMMCs] and myocarditis and/or pericarditis).

    Numbers of participants with Medical Attended Adverse Events (MAAEs), serious adverse events (SAEs), and adverse events of special interest (AESIs) (including potential immune-mediated medical conditions \[PIMMCs\] and myocarditis and/or pericarditis).

    6 months (approximately 182 days) post-vaccination.

Secondary Outcomes (8)

  • Hemagglutination-inhibition (HAI) antibody titers specific for the Hemagglutinin (HA) receptor binding domains of vaccine homologous Influenza A and B strains expressed as Geometric Mean Titer (GMT)

    Day 0 to Day 28

  • HAI antibody titers specific for the HA receptor binding domains of vaccine homologous Influenza A and B strains expressed as Geometric Mean Fold Rise (GMFR)

    Day 0 to Day 28

  • HAI antibody titers specific for the HA receptor binding domains of vaccine homologous Influenza A and B strains expressed as Geometric Mean Titer Ratio (GMTR)

    Day 0 to Day 28

  • HAI antibody Titers specific for the Hemagglutinin (HA) receptor binding domains of vaccine- homologous influenza strains A and B Expressed as Seroconversion Rate (SCR)

    Day 0 to Day 28

  • Neutralizing Antibody (NAb)specific to vaccine homologous wild-type influenza strains A and B Expressed as GMT.

    Day- 0 to 28

  • +3 more secondary outcomes

Study Arms (4)

Lot 1 (Group 1)

ACTIVE COMPARATOR

CIC vaccine will be administered as a single 0.5 mL IM injection in the deltoid on Day 0

Biological: coformulated CIC Vaccine

Lot 2 (Group 2)

ACTIVE COMPARATOR

CIC vaccine will be administered as a single 0.5 mL IM injection in the deltoid on Day 0

Biological: coformulated CIC Vaccine

Lot 3 (Group 3)

ACTIVE COMPARATOR

CIC vaccine will be administered as a single 0.5 mL IM injection in the deltoid on Day 0

Biological: coformulated CIC Vaccine

Fluzone HD

ACTIVE COMPARATOR

Fluzone HD trivalent will be administered as a suspension 1M Injection at 0.5mL on Day 0

Biological: Fluzone HD trivalent

Interventions

SARS-CoV-2 rS (35 µg) + trivalent hemagglutinin nanoparticle influenza (tNIV) antigen (180 µg; 60 µg per strain) + Matrix-M adjuvant (75 µg)

Also known as: SARS-CoV-2 rS, tNIV, Matrix-M adjuvant
Lot 1 (Group 1)Lot 2 (Group 2)Lot 3 (Group 3)

60 µg per strain of 3 strains (sodium phosphate buffered isotonic sodium chloride solution + formaldehyde and octyl phenol ethoxylate)

Fluzone HD

Eligibility Criteria

Age65 Years - 85 Years
Sexall
Healthy VolunteersYes
Age GroupsOlder Adult (65+)

You may qualify if:

  • To be included in this study, each individual must satisfy all the following criteria:
  • Willing and able to give informed consent prior to study enrollment.
  • Medically stable adult male or female ≥ 60 years of age at Screening.
  • Participants may have 1 or more chronic medical diagnoses, but should be clinically stable as assessed by:
  • Absence of changes in medical therapy in the past 2 months due to treatment failure or toxicity.
  • Absence of medical events qualifying as SAEs within 3 months; and
  • Absence of known, current, and life-limiting diagnoses which render survival to completion of the protocol unlikely in the opinion of the Investigator.
  • The participant has a body mass index (BMI) of 17 to 40 kg/m2, inclusive, at Screening.
  • Participant must be able to receive an injection in the deltoid of either arm.
  • Able to attend study visits, comply with study requirements, and provide reliable and complete reports of AEs.
  • Participants must have completed a primary vaccination series/booster against SARS-CoV-2 with an authorized/approved COVID-19 vaccine, with receipt of last dose of authorized/approved vaccine (with or without boosters\[s\]) ≥ 8 weeks prior to vaccination.
  • Participants must agree to not participate in any other SARS-CoV-2 or influenza prevention or treatment studies for the duration of the study.

You may not qualify if:

  • If an individual meets any of the following criteria, he or she is ineligible for this study:
  • History of laboratory-confirmed (by polymerase chain reaction \[PCR\] or rapid antigen test) COVID-19 or asymptomatic SARS-CoV-2 infection; either occurring ≤ 8 weeks prior to Screening.
  • Any ongoing, symptomatic acute illness requiring medical or surgical care or chronic illness that required substantive changes in medication in the past 2 months prior to Screening indicating that chronic illness/disease is not stable (at the discretion of the Investigator). This includes any current workup of undiagnosed illness that could lead to a new condition.
  • Serious chronic diseases inclusive of:
  • Uncontrolled hypertension;
  • Congestive heart failure requiring hospitalization within 3 months prior to Screening;
  • Chronic obstructive pulmonary disease (COPD) requiring hospitalization within 3 months prior to Screening;
  • Within 3 months prior to Screening, evidence of unstable coronary artery disease as manifested by cardiac interventions (e.g., cardiac stent placement, coronary artery bypass graft surgery), new cardiac medications for control of symptoms, or unstable angina.
  • Hospitalization for diabetic ketoacidosis within 6 months prior to Screening
  • Chronic kidney disease/renal requiring institution of substantive new therapy within 3 months prior to Screening
  • Chronic clinically significant gastrointestinal and hepatic diseases requiring hospitalization or institution of substantive new therapy within 3 months prior to Screening.
  • Chronic neurological diseases or neurological compromise preventing access to the study clinic, compliance with protocol, or accurate reporting of safety.
  • Participation in research involving an investigational product (drug/biologic/device) within 90 days before planned date of vaccination.
  • Use of COVID-19 prophylactic or treatment monoclonal antibodies or antibody cocktails within 90 days prior to planned date of vaccination.
  • History of a serious reaction to a prior influenza vaccination or known allergy to constituents of influenza vaccines - including egg proteins - or polysorbate 80; or any known allergies to products contained in the investigational product.
  • +13 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Conditions

COVID-19Influenza, Human

Condition Hierarchy (Ancestors)

Pneumonia, ViralPneumoniaRespiratory Tract InfectionsInfectionsVirus DiseasesCoronavirus InfectionsCoronaviridae InfectionsNidovirales InfectionsRNA Virus InfectionsLung DiseasesRespiratory Tract DiseasesOrthomyxoviridae Infections
0

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Purpose
PREVENTION
Intervention Model
CROSSOVER
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

June 27, 2024

First Posted

July 1, 2024

Study Start

February 1, 2025

Primary Completion

November 16, 2025

Study Completion (Estimated)

May 17, 2026

Last Updated

March 11, 2025

Record last verified: 2025-03