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Virus Vaccine

Novavax Booster for COVID-19

Phase 3
Waitlist Available
Research Sponsored by Novavax
Eligibility Criteria Checklist
Specific guidelines that determine who can or cannot participate in a clinical trial
Must have
Be between 18 and 65 years old
Timeline
Screening 3 weeks
Treatment Varies
Follow Up day 1 to day 180
Awards & highlights
No Placebo-Only Group
Pivotal Trial

Summary

This trial is testing an additional dose of the Novavax COVID-19 vaccine for adults who have already received their previous COVID-19 vaccinations. The goal is to see if this extra dose can improve immunity and ensure safety.

Who is the study for?
Adults aged 18-49 who previously received mRNA COVID-19 vaccines and a Novavax booster at least 180 days ago. Must be in good health, not pregnant or planning pregnancy, agree to use contraception if of childbearing potential, and not participate in other SARS-CoV-2 trials.
What is being tested?
The trial is testing the effectiveness of Novavax's NVX-CoV2373 vaccine as a booster following initial mRNA COVID-19 vaccinations. Participants will receive either the ancestral strain or an alternative/multivalent version with Matrix-M adjuvant.
What are the potential side effects?
Potential side effects may include typical vaccine reactions like soreness at injection site, fatigue, headache, muscle pain, possible allergic reactions but specifics will depend on individual responses to the Novavax vaccine.

Timeline

Screening ~ 3 weeks
Treatment ~ Varies
Follow Up ~day 1 to day 180
This trial's timeline: 3 weeks for screening, Varies for treatment, and day 1 to day 180 for reporting.

Treatment Details

Study Objectives

Study objectives can provide a clearer picture of what you can expect from a treatment.
Primary study objectives
Neutralizing Antibody (Nab) responses expressed as Geometric Mean Titers
Secondary study objectives
Human Angiotensin-Converting Enzyme 2 (hACE2) Receptor Binding Inhibition Assay Expressed as Seroresponse (SPR)
Incidence and Relationship of Serious Adverse Events (SAEs)
Incidence and Severity of Adverse Events Special Interests (AESIs)
+7 more

Awards & Highlights

No Placebo-Only Group
All patients enrolled in this study will receive some form of active treatment.
Pivotal Trial
The final step before approval, pivotal trials feature drugs that have already shown basic safety & efficacy.

Trial Design

2Treatment groups
Experimental Treatment
Group I: Updated COVID-19 VaccineExperimental Treatment1 Intervention
1dose of updated COVID-19 vaccine on Day 1
Group II: NVX CoV2373 (Ancestral strain)Experimental Treatment1 Intervention
1dose of NVX-COV2373 on Day 1
Treatment
First Studied
Drug Approval Stage
How many patients have taken this drug
NVX-CoV2373
2022
Completed Phase 3
~1690
SARS-CoV-2 rS antigen/Matrix-M Adjuvant
2023
Completed Phase 3
~300

Research Highlights

Information in this section is not a recommendation. We encourage patients to speak with their healthcare team when evaluating any treatment decision.
Mechanism Of Action
Side Effect Profile
Prior Approvals
Other Research
Protein subunit vaccines, such as the Novavax vaccine with Matrix-M™ adjuvant, work by introducing harmless pieces of the virus (often spike proteins) to the immune system, which then recognizes and learns to fight the actual virus. The Matrix-M™ adjuvant enhances the immune response by stimulating the production of more antibodies and promoting a stronger, longer-lasting immunity. This is crucial for COVID-19 patients as it helps prevent severe illness, reduces transmission, and contributes to herd immunity, ultimately controlling the spread of the virus.
Bottom-up analysis of emergent properties of N-acetylcysteine as an adjuvant therapy for COVID-19.Adaptive platform trials using multi-arm, multi-stage protocols: getting fast answers in pandemic settings.TLR4 as a therapeutic target for respiratory and neurological complications of SARS-CoV-2.

Find a Location

Who is running the clinical trial?

NovavaxLead Sponsor
50 Previous Clinical Trials
113,014 Total Patients Enrolled
Clinical DevelopmentStudy DirectorNovavax, Inc.
36 Previous Clinical Trials
87,359 Total Patients Enrolled

Media Library

SARS-CoV-2 rS antigen/Matrix-M Adjuvant (Virus Vaccine) Clinical Trial Eligibility Overview. Trial Name: NCT05875701 — Phase 3
Coronavirus Research Study Groups: Updated COVID-19 Vaccine, NVX CoV2373 (Ancestral strain)
Coronavirus Clinical Trial 2023: SARS-CoV-2 rS antigen/Matrix-M Adjuvant Highlights & Side Effects. Trial Name: NCT05875701 — Phase 3
SARS-CoV-2 rS antigen/Matrix-M Adjuvant (Virus Vaccine) 2023 Treatment Timeline for Medical Study. Trial Name: NCT05875701 — Phase 3
~116 spots leftby Nov 2025