Clinical trials
Influenza Vaccines clinical trials
Below are recruiting influenza vaccines clinical trials, each written for real people, not researchers. We’re tracking 52 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT05108818RecruitingPhase 4
Study immune responses after an flu shot in healthy adults
This study gives you a flu vaccine and measures how your immune system reacts, including both “blood immunity” and “cell immunity.” It’s for healthy adults and mainly aims to better understand how well flu vaccines work in people without major health issues.
Philadelphia, PennsylvaniaAges 18 years+ - NCT05215327RecruitingPhase 2
Higher-dose flu vaccine vs standard dose after lung transplant
This trial tests whether a higher dose of flu vaccine works better than the standard dose for people who have had a lung transplant. It may help improve protection against seasonal flu while monitoring safety.
Nashville, TennesseeAges 16 years+ - NCT05832307Recruiting
Testing whether inpatient flu shots improve vaccination rates
This trial looks at an organized plan to give flu vaccines during hospital stays. It may help more inpatients get protected against influenza before they leave the hospital.
Chicago, IllinoisAges 6 months–99 years - NCT05947071RecruitingPhase 2
Higher-dose flu vaccine versus standard dose in child transplant patients
This trial compares a higher-dose flu vaccine to the standard dose in children who recently received a kidney, heart, and/or liver transplant. It aims to see which dose better protects children against influenza while checking for safety.
Stanford, CaliforniaAges 3–17 - NCT06355232RecruitingPhase 1
Oral vaccine for COVID-19 and flu
This study tests an experimental oral vaccine that may protect against both COVID-19 and the flu. Researchers want to see if it's safe and how the body responds.
Adelaide, South AustraliaAges 18 years+ - NCT06815250Recruiting
Boosting maternal vaccine knowledge and uptake: The InTroDuce-Programme
This trial tests a programme to help pregnant women learn about and get flu and Tdap vaccines. It aims to increase vaccination rates and improve health for mothers and babies.
Bandar Baru Bangi, SelangorAges 18 years+ - NCT06824519RecruitingPhase 1/Phase 2
Quadrivalent flu vaccine trial for adults
This trial tests a new quadrivalent influenza (flu) vaccine in adults 18 and older. It aims to see if the vaccine is safe and helps protect against the flu. You may be able to join if you are generally healthy and have not had the flu or a flu shot recently.
Shijiazhuang, HebeiAges 18 years+ - NCT06842173RecruitingPhase 1/Phase 2
Safety testing of new bird flu vaccine (H5N8) in adults
This trial tests a new bird flu (H5N8) vaccine for adults aged 18 and older. It looks at how safe the vaccine is and how well it triggers an immune response. The vaccine is given as a shot and includes an adjuvant to boost protection.
Belo Horizonte, Minas GeraisAges 18 years+ - NCT07177417RecruitingPhase 4
How the immune system responds to FluMist in the airways
This study tests how the immune system in your nose and airways responds to the FluMist nasal spray flu vaccine. It may help doctors understand why some people get better protection from the flu.
St Louis, MissouriAges 18–40 - NCT07192458RecruitingPhase 2
High vs. Standard Dose Flu Vaccine in Lung Transplant
This study compares a high-dose flu vaccine to the standard dose in lung transplant recipients. It aims to see if a higher dose gives better protection against the flu.
Nashville, TennesseeAges 18 years+ - NCT07240558RecruitingPhase 3
Flu vaccine study for organ transplant patients
This study tests whether a special flu vaccine, designed for a future pandemic, works safely in people who have had an organ transplant. It aims to find a better way to protect transplant patients from severe flu.
Toronto, OntarioAges 18 years+ - NCT07302256RecruitingPhase 1
Flu vaccine trial for adults 60 and older
This trial tests an influenza (flu) vaccine in people aged 60 and above. It aims to see if the vaccine is safe and works well for older adults, who are at higher risk for flu complications.
Wuhan, HubeiAges 60 years+ - NCT07485855RecruitingPhase 3
Flu vaccine study for blood cancer patients
This trial tests how well the flu vaccine works in people with blood cancers like lymphoma, leukemia, or multiple myeloma. It aims to find the best vaccination strategy to protect you during treatment.
SeoulAges 19 years+ - NCT07310472Recruiting
Nasal flu vaccine for children in daycare
This trial is testing a nasal spray flu vaccine given to children at their daycare or a healthcare facility. It aims to make getting the vaccine easier and more convenient for families.
TurkuAges 2–6 - NCT07464314RecruitingPhase 1
Testing a combined flu and COVID-19 mRNA vaccine in older adults
This trial is testing whether a new mRNA vaccine that targets both seasonal flu and COVID-19 is safe and creates a strong immune response. It may offer an easier way to protect against two illnesses with one shot.
Anniston, AlabamaAges 65–85 - NCT04367883Recruiting
Study of flu shots and blood-pressure medicines in COVID
This study looks at people who were admitted to the hospital in Terrassa starting in March 2020. Researchers want to see whether having a flu vaccine and using certain blood-pressure medicines (ACE inhibitors or ARBs) is linked to how COVID infection develops.
Terrassa, BarcelonaAges Any age - NCT06676644Recruiting
Flu vaccine with booster for older adults with health conditions
This trial tests whether a flu vaccine with an extra ingredient (called an adjuvant) is safer and works better for older Asian adults with chronic health conditions than a standard flu vaccine. It aims to provide better protection against the flu for people like you.
TaipeiAges 65 years+ - NCT06599658RecruitingPhase 2
COVID-19 booster and flu vaccine timing for people with weak immune systems
This study tests the best timing for a COVID-19 booster and flu shot in people with weakened immune systems, such as organ transplant recipients, people living with HIV, or those with certain autoimmune conditions. It aims to help patients get better protection from both vaccines.
Montreal, QuebecAges 18 years+ - NCT06029933Recruiting
Comparing two flu vaccines for older adults
This study compares two types of flu shots for people 65 and older to see which works better. If you are a Kaiser Permanente member and get your flu shot at a Kaiser facility, this trial looks at your health records to see how well the vaccine protected you.
Oakland, CaliforniaAges 65 years+ - NCT07164144Enrolling by invitation
School Ambassadors for Vaccine Education
This trial tests whether training students as vaccine ambassadors can improve vaccine education in schools. It may help increase vaccine knowledge and uptake among students.
Rochester, New YorkAges 5–21 - NCT04664569Recruiting
Study of treatments for bacterial meningitis in children
This study enrolls children and newborns with suspected or confirmed bacterial meningitis. The goal is to understand and improve care for serious infections that affect the lining around the brain.
CréteilAges 1 day–18 years - NCT06635525Recruiting
How kidney failure affects your flu shot response
This study looks at how well the flu vaccine works in people with kidney failure who are on dialysis compared to healthy people. It will help doctors understand how kidney problems affect the body’s immune response to vaccination.
MilanAges 18–70 - NCT06446232Recruiting
Flu vaccine effectiveness in young children
This trial studies how well the flu vaccine works in young children in Taiwan. To join, your child must have a positive flu test and a known vaccination record.
TaipeiAges 6 months–18 years - NCT07259252Recruiting
Flu vaccine study for heart attack or unstable angina patients
This study tests whether getting a flu vaccine helps people who recently had a heart attack or unstable angina (acute coronary syndrome). It looks at whether vaccination can reduce future heart problems.
Wuhan, HubeiAges 18–80
Hear when a new Influenza Vaccines trial opens
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Common questions
- Are there clinical trials for influenza vaccines?
- Yes. Clin2 currently lists 52 recruiting influenza vaccines studies from the U.S. registry, each rewritten for real people, not researchers, so you can see what it’s testing and who it’s for.
- How do I know if I qualify for a influenza vaccines trial?
- Each study lists its eligibility criteria — rules about age, diagnosis, and prior treatments. On every Clin2 trial page we explain these in words written for real people and offer a short, optional pre-screen for a fit read. The study team makes the final decision.
- Does it cost anything to join a influenza vaccines trial?
- Using Clin2 is always free. Many trials cover the cost of the study treatment and related visits; some reimburse travel. The study team explains exactly what’s covered before you decide.
Related conditions
Clin2 helps you find and understand clinical trials and does not provide medical advice. Study data comes from ClinicalTrials.gov. Talk with your doctor about whether a specific trial is right for you.