Clinical trials
Influenza clinical trials
Below are recruiting influenza clinical trials, each written for real people, not researchers. We’re tracking 107 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT06863142RecruitingPhase 1
Testing a new flu vaccine with or without adjuvant
This study tests a new investigational flu vaccine (FluMos-v2) with or without an adjuvant (ALFQ) to see how safe, tolerable, and effective it is. It may help protect against multiple flu strains.
Bethesda, MarylandAges 18–50 - 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 - 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+ - 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 - NCT02735707RecruitingPhase 3
Adaptive trial for severe pneumonia care in intensive care
This study tests ways to improve treatment for adults with severe pneumonia that lands them in the ICU, adjusting the plan as results come in. It may help your care team find better treatments for lung infection and breathing/heart support needs.
Jacksonville, FloridaAges 18 years+ - NCT02200276Recruiting
Flu shot study for adults over 75
This study looks at getting an influenza (flu) vaccine in adults age 75 and older. It may help doctors understand how to safely give flu shots to older adults.
Baltimore, MarylandAges 75 years+ - NCT07215871Enrolling by invitationPhase 1
Second H10N7 flu challenge for prior participants
This study tests whether people who have already been exposed to a lab-made H10N7 flu virus can be safely exposed again. It checks how their immune system responds and how long they shed the virus, in a controlled, isolated setting.
Bethesda, MarylandAges 18–55 - NCT06401720Enrolling by invitation
Flu immune response study by age
This study looks at how the immune system reacts to the flu in people of different ages. If you have flu symptoms and don't have cancer or take immune-suppressing drugs, you may be able to join.
SödertäljeAges 18 years+ - NCT07215858RecruitingPhase 2
Testing a new flu vaccine against H1N1 flu
This study tests an experimental flu vaccine (BPL-1357) in healthy volunteers who will later be exposed to H1N1 flu virus in a controlled setting, to see if the vaccine can prevent or reduce illness.
Bethesda, MarylandAges 18–55 - NCT06998264Recruiting
Immune response to flu in young children
This study looks at how children's immune systems fight the flu in the nose and throat. It aims to understand why some children get very sick and others don't, which could help create better treatments and vaccines.
GenevaAges 2–5 - NCT07030075Recruiting
Flu and respiratory infection study in Lusaka
This study looks at flu-like symptoms and other respiratory infections in adults in Lusaka, Zambia. It aims to understand how these infections affect people with and without HIV, and may help improve care.
Lusaka, Lusaka ProvinceAges 18 years+ - NCT07599449Recruiting
Tracking respiratory infections in French primary care
This study tracks viruses that cause sudden colds and flu-like illnesses during winter months in France. Researchers collect information from patients seen by participating doctors to better understand which respiratory viruses are circulating and help prepare for future outbreaks.
ParisAges Any age - NCT07229547RecruitingPhase 3
Onradivir for teens with flu A
This study tests an experimental antiviral pill called Onradivir for teenagers (ages 12 to 17) with uncomplicated influenza A. It aims to see if the drug can safely shorten flu symptoms and help you recover faster.
Shanghai, Shanghai MunicipalityAges 12–17 - NCT03748069Recruiting
Study of complications from flu and lung Aspergillus infection
This study looks closely at how influenza (the flu) and a specific kind of lung fungus called Aspergillus affect people who are sick in the ICU with breathing problems. It may help doctors better understand the cause and improve treatment for severe lung infections.
LeuvenAges 18 years+ - NCT04712539RecruitingPhase 2
Baloxavir and oseltamivir for severe flu in immune-compromised people
This trial tests whether two flu medicines—baloxavir and oseltamivir—work better to treat influenza in people with weakened immune systems (like transplant or blood cancer patients). It may help reduce severe complications, especially when flu affects the lungs or is at high risk to do so.
Houston, TexasAges 12 years+ - NCT04697576RecruitingPhase 1
Flu vaccine injected into melanoma tumors for stage I-IV
This trial tests whether injecting a flu vaccine directly into melanoma tumors helps shrink them. It is for people with stage I to IV melanoma who have at least one tumor that can be injected.
Columbus, OhioAges 18–99 - NCT05616546RecruitingPhase 4
Study of immune responses during and after flu infection
This study looks at how your immune system (your body’s infection-fighting system) responds during and around the time of a flu illness. It’s meant to help researchers better understand immune changes in healthy adults and may guide future flu care.
Atlanta, GeorgiaAges 18–64 - NCT06168019Recruiting
Flu and COVID-19 study for pregnant women in Nagpur
This study follows pregnant women in Nagpur to understand how influenza and COVID-19 affect them and their babies. Participants will be contacted twice a week for symptom checks and may provide blood samples at key points during pregnancy.
Boston, MassachusettsAges 18–50 - NCT06254313Recruiting
Studying neutrophils in flu-related lung injury
This trial looks at how a type of white blood cell affects lung inflammation in people with severe influenza. It may help researchers find better treatments for respiratory failure caused by the flu or other infections.
BordeauxAges 18 years+ - NCT06336317RecruitingPhase 4
Flu vaccine after heart attack: effect on heart inflammation
This trial tests whether getting a flu vaccine shortly after a heart attack can reduce inflammation in the heart. If you've recently had a non-ST-segment elevation heart attack and a stent placed, you may be able to join.
AarhusAges 18 years+ - 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 - NCT06528444RecruitingPhase 3
Dexamethasone vs placebo for severe flu patients
This trial tests whether dexamethasone (a steroid) can help people hospitalized with severe flu recover faster. It is for adults who are already taking Tamiflu and do not have other serious infections like COVID-19.
AlicanteAges 18–100 - NCT06574503RecruitingPhase 3
New pill to prevent flu after exposure
This study tests a new antiviral pill, GP681, to prevent the flu in people who live with someone who has the flu. If you haven't gotten sick yet and are otherwise healthy, this might help keep you from catching it.
HanzhouAges 12 years+ - NCT06667063Recruiting
Immune response study for COVID-19 and flu
This study looks at how your immune system responds to COVID-19 or the flu. It may help researchers understand these infections better, whether you are currently sick or healthy.
Wuhan, HubeiAges 18 years+
Hear when a new Influenza trial opens
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Common questions
- Are there clinical trials for influenza?
- Yes. Clin2 currently lists 107 recruiting influenza 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 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 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.