A Study to Learn About Flu and COVID-19 Vaccine Responses in Healthy People
NCT06683352
Completed
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.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/12/2025
Locations: Orange County Research Center, Lake Forest, California +2 locations
Conditions: Influenza,Human, COVID-19
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Safety, Tolerability, and Immunogenicity of V110 or V114 Co-administered With a Booster Dose of mRNA-1273 in Healthy Adults (V110-911)
NCT05158140
Completed
The purpose of this study is to evaluate the concomitant and non-concomitant use of messenger ribonucleic acid (mRNA) mRNA-1273, the nucleoside-modified mRNA vaccine for active immunization to prevent coronavirus disease (COVID-19) caused by severe acute respiratory syndrome coronavirus (SARS-CoV-2), with a 23-valent pneumococcal polysaccharide vaccine (V110) for the prevention of pneumococcal disease, or a 15-valent pneumococcal conjugate vaccine (V114) indicated for the prevention of invasive... Read More
Gender:
ALL
Ages:
50 years and above
Trial Updated:
07/08/2025
Locations: Carbon Health ( Site 0045), North Hollywood, California +6 locations
Conditions: Pneumococcal Infection
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Safety and Immunogenicity of 9-valent Human Papillomavirus (9vHPV) Vaccine Coadministered With Messenger Ribonucleic Acid (mRNA)-1273 Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) (COVID-19) Vaccine (V503-076)
NCT05119855
Completed
The purpose of this study to evaluate the safety and immunogenicity of a 2-dose regimen of 9vHPV vaccine, where the first dose is administered concomitantly with a first dose of a 2-dose regimen of mRNA-1273 vaccine versus nonconcomitant administration of 9vHPV and mRNA-1273 vaccines in boys and girls 9 to 11 years of age.
Gender:
ALL
Ages:
Between 9 years and 11 years
Trial Updated:
06/30/2025
Locations: Coast Clinical Research, LLC ( Site 0027), Bellflower, California +4 locations
Conditions: Papillomavirus Infections, Coronavirus Disease (COVID-19)
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Study of mRNA-1010 Seasonal Influenza Vaccine in Adults
NCT05827978
Completed
This study includes 3 parts: Parts A, B, and C. The purpose of this study is to evaluate the immunogenicity and safety of mRNA-1010 seasonal influenza vaccine in adults.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/23/2025
Locations: Velocity Clinical Research, Banning, Banning, California +9 locations
Conditions: Seasonal Influenza
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A Study of mRNA-1083 (SARS-CoV-2 and Influenza) Vaccine in Healthy Adult Participants, ≥50 Years of Age
NCT06097273
Completed
The purpose of this study is to evaluate the immunogenicity, safety, and reactogenicity of mRNA-1083 as compared with active control, co-administered licensed influenza and severe acute respiratory syndrome coronavirus 2 (SARS CoV 2) vaccines, in 2 independent age-group sub-study cohorts, healthy adults 65 years and older (Cohort A) and healthy adults 50 to \<65 years of age (Cohort B).
Gender:
ALL
Ages:
50 years and above
Trial Updated:
06/23/2025
Locations: AES - DRS - Synexus Clinical Research US, Inc. - Cerritos, Cerritos, California +10 locations
Conditions: SARS-CoV-2, Influenza
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A Study to Investigate the Safety and Immunogenicity of the Quadrivalent Influenza mRNA Vaccines in Adults Aged 18 Years and Above
NCT06361875
Completed
The purpose of this study is to evaluate the safety and immunogenicity of a single intramuscular (IM) injection of different formulations of Quadrivalent Influenza Vaccine (QIV) messenger ribonucleic acid (mRNA) (MRT5421, MRT5424, and MRT5429) compared to an active control (QIV- standard dose (SD), QIV- high dose (HD) \[adults ≥ 65 years of age only\], or quadrivalent recombinant influenza vaccine (RIV4)) in adults 18 years of age and older.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/18/2025
Locations: Long Beach Clinical Trials Site Number : 8400013, Long Beach, California +1 locations
Conditions: Influenza Immunization
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A Study to Learn About How the Flu and COVID-19 Vaccines Act in Healthy People
NCT06821061
Recruiting
The purpose of this study is to learn about how the flu and COVID vaccines act when given alone or when mixed together. This study is seeking healthy participants aged 18 or older. All participants in this study will receive only 1 shot to their arm, either a flu or COVID vaccine, alone or mixed. Participants will take part in this study for about 6 months, and participants will need to visit the clinical study site at least 4 times.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/18/2025
Locations: Anaheim Clinical Trials, LLC, Anaheim, California +4 locations
Conditions: Influenza, COVID-19 (Coronavirus Disease 2019)
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COVID Protection After Transplant-Immunosuppression Reduction
NCT05077254
Completed
This study will enroll individuals who have: * Completed primary series of mRNA COVID-19 vaccine, and * An antibody response ≤ 2500 U/mL measured at least 30 days after the last dose of vaccine. This group of patients is at high risk for severe COVID-19 disease due to pharmacologic immunosuppression and a high prevalence of non-transplant risk factors such as obesity and diabetes.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
05/29/2025
Locations: University of California, San Diego, San Diego, California +1 locations
Conditions: Kidney Transplant Recipients, Liver Transplant Recipients
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Pneumococcal Conjugate Vaccination in HIV in Comparison to Polysaccharide Vaccine Boosting
NCT00622843
Completed
Purpose: To study the immune response of the newly licensed pneumococcal conjugate vaccine (PCV) in comparison to the pneumococcal polysaccharide vaccine (PPV) to determine if a significantly better immunologic response to boosting can be elicited in patients previously vaccinated with PPV.
Gender:
ALL
Ages:
Between 18 years and 60 years
Trial Updated:
05/21/2025
Locations: Naval Medical Center San Diego, San Diego, California
Conditions: HIV Infections, Streptococcus Pneumoniae
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A Safety and Immune Response Study to Evaluate Varying Doses of an mRNA Vaccine Against Coronavirus Disease 2019 (COVID-19) in Healthy Adults
NCT05972993
Completed
The purpose of this study is to evaluate the safety, reactogenicity and immune responses of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) mRNA-CR-04 vaccine construct when administered in healthy adults previously vaccinated with SARS-CoV-2 mRNA vaccines.
Gender:
ALL
Ages:
Between 18 years and 49 years
Trial Updated:
05/08/2025
Locations: GSK Investigational Site, San Diego, California
Conditions: COVID-19
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A Study to Evaluate a Modified RNA Vaccine Against Influenza in Adults 18 Years of Age or Older
NCT05540522
Completed
This is a Phase 3, randomized, observer-blinded study to evaluate the efficacy, safety, tolerability, and immunogenicity of a single dose of a quadrivalent influenza modRNA vaccine compared to licensed inactivated influenza vaccine in healthy adults 18 years of age and older.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
04/18/2025
Locations: Anaheim Clinical Trials, Anaheim, California +24 locations
Conditions: Influenza, Human
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A Study to Investigate the Immunogenicity, Reactogenicity, and Safety of mRNA-1083 (Influenza and COVID-19) Vaccine in Adults ≥18 to <65 Years of Age
NCT06864143
Recruiting
The purpose of this study is to evaluate the immunogenicity, reactogenicity, and safety, of mRNA-1083 multicomponent influenza and COVID-19 vaccine in adults ≥18 to \<65 years of age.
Gender:
ALL
Ages:
Between 18 years and 64 years
Trial Updated:
03/19/2025
Locations: Artemis Research (Headlands), San Diego, California
Conditions: Influenza, SARS-CoV-2
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