A Study to Learn About How the Flu and COVID-19 Vaccines Act in Healthy People
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 i...
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
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....
A Study to Find and Confirm the Dose and Assess Safety, Reactogenicity and Immune Response of a Vaccine Against Pandemic H5N1 Influenza Virus in Healthy Younger and Older Adults
The aim of this study is to evaluate the safety, reactogenicity and immunogenicity of the Flu Pandemic messenger RNA (mRNA) vaccine (including dose-finding and dose-confirmation) administered in healt...
A Surveillance Study of Susceptibility to Baloxavir Marboxil in Pediatric Participants With Influenza and Transmission of Influenza to Household Contacts
This study consists of two parts: Part A Surveillance and Part B Transmission. The main purpose of Part A is to evaluate the prevalence of pre-dose and treatment-emergent amino acid substitutions in ...
A Phase I/II Study on Safety AND Immunogenicity of AZD4117 and AZD5315 Vaccines (PANDA)
The purpose of this study is to evaluate the safety and immunogenicity of two investigational vaccines, AZD4117 and AZD5315 to protect against certain strains of avian Influenza A (H5N1 and H7N9 subty...
High vs.Standard Dose Influenza Vaccine in Pediatric Solid Organ Transplant (SOT) Recipients
Influenza virus is a significant pathogen in pediatric solid organ transplant (SOT) recipients. However, these individuals respond poorly to standard-dose (SD) inactivated influenza vaccine (IIV). Rec...
DFMO as Maintenance Therapy for Molecular High/Very High Risk and Relapsed Medulloblastoma
Difluoromethylornithine (DFMO) will be used in an open label, multicenter, study as Maintenance Therapy for Molecular High Risk/Very High Risk and Relapsed/Refractory Medulloblastoma....
PUL-042 Treatment in Patients With Parainfluenza Virus (PIV), Human Metapneumovirus (hMPV) or Respiratory Syncytial Virus (RSV)
The purpose of this research study is to try to see whether an experimental drug, PUL 042 Inhalation Solution (PUL 042), is effective in reducing the severity of lung infections in patients with hemat...
COmbination Therapy With Baloxavir and Oseltamivir 1 for Hospitalized Patients With Influenza (The COMBO Trial 1)
This is a randomized, double-blind, placebo-controlled Phase 2-like, investigator-directed trial of hospitalized patients with laboratory confirmed influenza. Eligible and consented patients will be r...
Study of NALIRIFOX in Advanced Unresectable Small Bowel Tumors
The study regimen will be administered on an outpatient basis and all medications are administered intravenously (IV). Subjects will receive treatment on Day 1 and Day 15 of each 28-day cycle consisti...
Top Cities for Influenza Clinical Trials
Influenza clinical trials are recruiting across 66 cities. Here are the cities with the most active studies:
About Influenza
Influenza is a contagious respiratory illness caused by influenza viruses that infect the nose, throat, and lungs. It causes millions of illnesses and thousands of deaths annually. Prevention through vaccination is the primary strategy, with antiviral medications available for treatment.
Clinical trials are advancing new treatments for influenza. Currently, 10 studies are recruiting a combined 6,717 participants across the United States. Research is being conducted by 10 organizations including BioNTech SE, ModernaTX, Inc., GlaxoSmithKline and 7 others.
2026 Influenza Research Landscape
As of March 2026, the influenza clinical trial landscape includes 10 actively recruiting studies across 66 cities in the United States. These studies are collectively seeking 6,717 participants, with an average enrollment target of 672 per study.
Research is being led by 10 different organizations, including BioNTech SE, ModernaTX, Inc., GlaxoSmithKline, Hoffmann-La Roche, AstraZeneca, and 5 others.
Geographically, influenza trials are most concentrated in Kansas City, Missouri (4 trials); San Diego, California (3 trials); Chicago, Illinois (3 trials); Hialeah, Florida (2 trials); Stockbridge, Georgia (2 trials) and 7 other cities.
Featured Influenza Studies
Highlighted recruiting studies for influenza, selected by enrollment size and research scope.
A Study to Learn About How the Flu and COVID-19 Vaccines Act in Healthy People
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...
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
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.
A Study to Find and Confirm the Dose and Assess Safety, Reactogenicity and Immune Response of a Vaccine Against Pandemic H5N1 Influenza Virus in Healthy Younger and Older Adults
The aim of this study is to evaluate the safety, reactogenicity and immunogenicity of the Flu Pandemic messenger RNA (mRNA) vaccine (including dose-finding and dose-confirmation) administered in healthy adults 18 to 85 years of age.
Frequently Asked Questions About Influenza Clinical Trials
Are there influenza clinical trials near me?
Yes, there are 10 influenza clinical trials currently recruiting across 66+ cities in the United States, including Kansas City, Missouri; San Diego, California; Chicago, Illinois. Browse the studies above to find one at a location convenient for you.
How do I join a influenza clinical trial?
To join a influenza clinical trial: 1) Browse the available studies on this page, 2) Click on a study that interests you, 3) Check the study locations to find a site near you, 4) Review the eligibility criteria, and 5) Contact the study site or complete the eligibility form. The process is free and you can withdraw at any time.
Are influenza clinical trials free?
Yes, participation in influenza clinical trials is free. Study-related treatments, medical tests, and doctor visits are provided at no cost to participants. Many studies also offer compensation for your time and travel expenses.
What types of influenza treatments are being studied?
Current influenza clinical trials are testing a range of approaches. These include new drugs, combination therapies, medical devices, and other interventions sponsored by 10 research organizations.
Is it safe to participate in influenza clinical trials?
Clinical trials are carefully regulated by the FDA and institutional review boards (IRBs). All trials must follow strict safety protocols, and participants receive close medical monitoring throughout the study. You can withdraw from a trial at any time without penalty.
Data updated March 1, 2026 from ClinicalTrials.gov
About This Data
Clinical trial information on this page is sourced from ClinicalTrials.gov, a service of the U.S. National Institutes of Health (NIH) and National Library of Medicine (NLM). Study data is refreshed every hour to ensure accuracy.
Medical Disclaimer: The information provided on this page is for informational purposes only and does not constitute medical advice. Always consult with a qualified healthcare provider before making decisions about clinical trial participation or changes to your treatment plan.
Page reviewed by the HelloStudys Research Team · Last updated March 1, 2026 · Data from ClinicalTrials.gov