Independent directory Public ClinicalTrials.gov records United States
Clear filters
ClinicalTrials.gov public records Last synced Sep 8, 2026, 6:16 AM EDT

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

Showing 1–14 of 14 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Study to Compare the Immunogenicity and Safety of 3 Lots of NVX-CoV2373 in Adults

NCT05463068
Conditions
COVID-19, SARS-CoV-2 Infection
Interventions
NVX-Cov2373
Drug
Lead sponsor
Novavax
Industry
Eligibility
18 Years to 49 Years
Enrollment
911 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
30
States / cities
Long Beach, California • Sacramento, California • DeLand, Florida + 26 more
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

Delayed Heterologous SARS-CoV-2 Vaccine Dosing (Boost) After Receipt of EUA Vaccines

NCT04889209
Conditions
COVID-19
Interventions
Ad26.COV2.S, BNT162b2, mRNA-1273, mRNA-1273.211, mRNA-1273.222, SARS-CoV-2 rS/M1
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 99 Years
Enrollment
867 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
10
States / cities
Decatur, Georgia • Baltimore, Maryland • New York, New York + 6 more
Completed Phase 4 Interventional Accepts healthy volunteers Results available

The Efficacy of the 2023-2024 Updated COVID-19 Vaccines Against COVID-19 Infection

NCT06065176
Conditions
COVID-19, Vaccine-Preventable Diseases, SARS CoV 2 Infection, Upper Respiratory Tract Infection, Upper Respiratory Disease
Interventions
Novavax COVID-19 vaccine (2023-2024 formula XBB containing), Pfizer COVID-19 mRNA vaccine (2023-2024 formula XBB containing)
Biological
Lead sponsor
Sarang K. Yoon, DO, MOH
Other
Eligibility
18 Years and older
Enrollment
1,188 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Salt Lake City, Utah
Not listed No phase listed Observational Accepts healthy volunteers

The COVID-19 Back-to-Normal Study: Analysis of Multiple Outcomes

NCT04832932
Conditions
COVID-19 Vaccines
Interventions
COVID-19 vaccines
Biological
Lead sponsor
Mebo Research, Inc.
Other
Eligibility
18 Years and older
Enrollment
2,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2025
U.S. locations
2
States / cities
Miami, Florida • Vonore, Tennessee
Active, not recruiting Phase 4 Interventional Accepts healthy volunteers

COVID-19 Reactogenicity

NCT07051031
Conditions
COVID-19
Interventions
Nuvaxovid (NVX-CoV2705), mNEXSPIKE mRNA-1283
Drug
Lead sponsor
Marcel Curlin
Other
Eligibility
18 Years and older
Enrollment
1,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Portland, Oregon
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Phase 3 Study of Novavax Vaccine(s) as Booster Dose After mRNA Vaccines

NCT05875701
Conditions
COVID-19
Interventions
NVX-CoV2373, SARS-CoV-2 rS antigen/Matrix-M Adjuvant
Biological
Lead sponsor
Novavax
Industry
Eligibility
18 Years to 49 Years
Enrollment
147 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
5
States / cities
Austin, Texas • Fort Worth, Texas • Plano, Texas + 1 more
Conditions
COVID-19
Interventions
NVX-CoV2373 (5μg), NVX-CoV2601(5μg), NVX-CoV2601(35μg), NVX-CoV2601(50μg), Bivalent BA.4/5
Biological
Lead sponsor
Novavax
Industry
Eligibility
50 Years to 99 Years
Enrollment
994 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
50
States / cities
Birmingham, Alabama • Tucson, Arizona • Banning, California + 44 more
Conditions
Immunosuppression, COVID-19
Interventions
NVX-CoV2372
Biological
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years to 85 Years
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Madison, Wisconsin
Conditions
COVID-19
Interventions
SARS-CoV-2 rS/Matrix-M1 Adjuvant (Initial Vaccination Period), Placebo
Biological · Other
Lead sponsor
Novavax
Industry
Eligibility
6 Months to 11 Years
Enrollment
3,600 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2025
U.S. locations
47
States / cities
Little Rock, Arkansas • Anaheim, California • Bellflower, California + 41 more
Conditions
COVID-19
Interventions
SARS-CoV-2 rS - Phase 1, SARS-CoV-2 rS/Matrix-M Adjuvant - Phase 1, Normal saline solution (NSS), Placebo - Phase 1, Normal saline solution (NSS), Placebo - Phase 2, SARS-CoV-2 rS/Matrix-M Adjuvant, Day 0 - Phase 1, Normal saline solution (NSS), Placebo, Day 21 - Phase 1, SARS-CoV-2 rS/Matrix-M Adjuvant - Phase 2
Biological · Other
Lead sponsor
Novavax
Industry
Eligibility
18 Years to 84 Years
Enrollment
1,419 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
8
States / cities
Savannah, Georgia • Meridian, Idaho • Newton, Kansas + 5 more
Conditions
Covid19
Interventions
COVID-19 Therapeutic Biologic Mix - NOVAVAX COVID-19 VACCINE plus BCG Vaccine Mix for percutaneous use
Biological
Lead sponsor
Han Xu, M.D., Ph.D., FAPCR, Sponsor-Investigator, IRB Chair
Industry
Eligibility
24 Years to 64 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
North Bethesda, Maryland
Conditions
SARS-CoV Infection, Covid19
Interventions
SARS-CoV-2 rS/Matrix-M1 Adjuvant (Initial Vaccination Period), Placebo (Initial Vaccination Period), SARS-CoV-2 rS/Matrix-M1 Adjuvant (Crossover Vaccination period), Placebo (Crossover Vaccination period), SARS-CoV-2 rS/Matrix-M1 Adjuvant (Booster Vaccination), SARS-CoV-2 rS/Matrix-M1 Adjuvant (Second Booster Vaccination)
Biological · Other
Lead sponsor
Novavax
Industry
Eligibility
12 Years and older
Enrollment
33,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2023
U.S. locations
144
States / cities
Birmingham, Alabama • Phoenix, Arizona • Tempe, Arizona + 110 more
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Phase 3 Adolescent Study for SARS-CoV-2 rS Variant Vaccines

NCT05973006
Conditions
COVID-19
Interventions
NVX-CoV2601 co-formulated Omicron XBB.1.5 SARS-CoV-2 rS vaccine, Prototype/XBB.1.5 Bivalent Vaccine (5 µg)
Biological
Lead sponsor
Novavax
Industry
Eligibility
11 Years to 18 Years
Enrollment
400 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
20
States / cities
Davie, Florida • Jacksonville, Florida • Miami, Florida + 17 more
Conditions
Adverse Reaction to Vaccine, COVID19 Vaccine
Interventions
BNT162b2, mRNA-1273, AZD1222, CoronaVac, Sinopharm, Gam-COVID-Vac, JNJ-78436735, CVnCoV, NVX-CoV2373, BBV152
Biological
Lead sponsor
Masaryk University
Other
Eligibility
18 Years and older
Enrollment
30,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2026
U.S. locations
1
States / cities
Philadelphia, Pennsylvania