Flu Clinical Trials

383 recruitingLast updated: May 29, 2026

There are 383 actively recruiting flu clinical trials across 63 countries. Studies span Not Applicable, Phase 4, Phase 2, Phase 3, Phase 1, Early Phase 1. Top locations include Chicago, Illinois, United States, Philadelphia, Pennsylvania, United States, New York, New York, United States. Updated daily from ClinicalTrials.gov.


Flu Trials at a Glance

383 actively recruiting trials for flu are listed on ClinicalTrialsFinder across 6 cities in 63 countries. The largest study group is Not Applicable with 143 trials, with the heaviest enrollment activity in Chicago, Philadelphia, and New York. Lead sponsors running flu studies include National Institute of Allergy and Infectious Diseases (NIAID), Mayo Clinic, and Ain Shams University.

Treatments under study

About Flu Clinical Trials

Looking for clinical trials for Flu? There are currently 4 studies actively recruiting participants. Clinical trials offer access to new treatments before they are widely available, and every approved therapy in use today was first tested through a clinical trial.

Below you can browse trials, sign up for alerts when new Flu trials open, and view eligibility criteria for each study. Each listing includes the study phase, locations, and enrollment details.

Frequently Asked Questions

Common questions about Flu clinical trials

A clinical trial is a carefully designed research study that tests new medical treatments, drugs, devices, or approaches in human volunteers. Every approved medication and treatment available today was proven safe and effective through clinical trials.

All clinical trials are reviewed and approved by Institutional Review Boards (IRBs) — independent committees that evaluate patient safety. Trials follow strict protocols, and your health is monitored closely throughout. You can withdraw at any time.

Not necessarily. Many trials compare the new treatment against the current standard of care, meaning all participants receive active treatment. When placebos are used, they are typically combined with standard treatment, not given alone. The trial description will always specify the design.

Under the Affordable Care Act, most private insurers are required to cover routine patient care costs during a clinical trial. The sponsor typically covers the investigational treatment itself. Medicare also covers routine costs for qualifying trials.

Yes. Participation is completely voluntary. You can withdraw at any time, for any reason, without it affecting your access to standard medical care.

Each trial has specific eligibility criteria — including age, diagnosis, disease stage, prior treatments, and general health. Browse the trials listed above and check their eligibility sections. You can also contact the trial site directly to discuss your situation.

Showing 120 of 383 trials

Recruiting
Phase 3

A Study to Evaluate the Safety and Efficacy of CD388 for Prevention of Influenza

Influenza
Cidara Therapeutics Inc., a subsidiary of Merck & Co., Inc. (Rahway, New Jersey USA)7,500 enrolled176 locationsNCT07159763
Recruiting

Screening for LID Clinical Studies Unit Healthy Volunteer Protocols

ZikaInfluenza
National Institute of Allergy and Infectious Diseases (NIAID)5,000 enrolled1 locationNCT01386424
Recruiting

Analysis of Cerebrospinal Fluid Leakage After Surgery for Intracranial Tumors

GlioblastomaMeningiomaGlioma+4 more
Medical University of Warsaw200 enrolled1 locationNCT07411690
Recruiting
Not Applicable

Acute Atrial Fibrillation and Flutter Treated Electively

Atrial FibrillationAtrial Flutter
Tampere University500 enrolled4 locationsNCT04267159
Recruiting
Early Phase 1

Development of a Preparation for Supportive Supplementation of Probiotics in Patients With Reflux

MicrobiomeReflux DiseaseProbiotics Supplement
University Hospital Olomouc50 enrolled1 locationNCT07600008
Recruiting
Phase 4

The Danish Warfarin-Dialysis Study - Safety and Efficacy of Warfarin in Patients With Atrial Fibrillation on Dialysis

StrokeEnd Stage Renal DiseaseAtrial Fibrillation and Flutter+1 more
Nicholas Carlson718 enrolled13 locationsNCT03862859
Recruiting
Phase 3

Phase III DAS181 Lower Tract PIV Infection in Immunocompromised Subjects (Substudy: DAS181 for COVID-19): RCT Study

COVID-19Lower Respiratory Tract InfectionImmunocompromised+1 more
Ansun Biopharma, Inc.274 enrolled67 locationsNCT03808922
Recruiting
Not Applicable

Free Fluid Detection With Telementored eFAST

AscitesPostoperative ComplicationsHemoperitoneum+1 more
Oslo University Hospital40 enrolled1 locationNCT06594562
Recruiting
Not Applicable

Deprescribing Inappropriate Proton Pump Inhibitors

inappropriate prescribingProton Pump InhibitorsReflux Disease
University of Bern400 enrolled2 locationsNCT06129474
Recruiting

Prediction of Fluid Responsiveness Using the Femoral Vein-to-Artery Diameter Ratio

Acute circulatory failureShockFluid responsiveness
Istanbul University - Cerrahpasa100 enrolled1 locationNCT07546656
Recruiting

Long-term Effect of Silver Diamine Fluoride on the Dentin-Pulp Complex in Primary Teeth

Silver Diamine Fluoride
Cairo University6 enrolled1 locationNCT07586631
Recruiting
Phase 1

First-in-Human Study of VNT-101: Safety, Tolerability, and Pharmacokinetics

Influenza
National Institute of Allergy and Infectious Diseases (NIAID)78 enrolled1 locationNCT07169318
Recruiting
Not Applicable

Anatomical Navigation for Guided Electrophysiology in AFL and AFib

Atrial FibrillationAtrial FlutterAtrial Arrhythmia
LUMA Vision Ltd.50 enrolled1 locationNCT07210151
Recruiting
Not Applicable

Feasibility Study on the VERAFEYE Imaging and Navigation System for Guided Catheter Ablation Procedures

Atrial FibrillationAtrial FlutterAtrial Arrhythmia
LUMA Vision Ltd.50 enrolled1 locationNCT07271238
Recruiting
Not Applicable

Proactive Hemodynamic Management During Cytoreductive Surgery and HIPEC

Ovarian CancerFluid OverloadHemodynamic Instability
Fondazione Policlinico Universitario Agostino Gemelli IRCCS52 enrolled1 locationNCT07070973
Recruiting
Phase 1

Study of Different Formulations of Vaccines Encoding the RSV Monovalent Antigen or the Flu H5 Antigen in Participants 18 to 49 Years of Age

Respiratory Syncytial Virus (RSV)Influenza A(H5N1)
Sanofi570 enrolled6 locationsNCT07516418
Recruiting
Not Applicable

An Automatically Adjusting Prosthetic Socket for People With Transtibial Amputation

Lower Limb Amputation Below Knee (Injury)Diurnal Residual Limb Fluid Volume Fluctuation
University of Washington100 enrolled1 locationNCT05124652
Recruiting
Not Applicable

Pulsatile Flushing Technique in Reducing Blockage of T-CVAD for Haemodialysis Patients

haemodialysis patientsBlockage of Tunnelled Central Venous Access DevicePulsatile Flushing Technique
Queen Elizabeth Hospital, Hong Kong591 enrolled1 locationNCT07567456
Recruiting
Not Applicable

Effect of Giving Reduced Fluid in Children After Trauma

PediatricsGeneral SurgeryWounds and Injuries+2 more
Columbia University250 enrolled4 locationsNCT04201704
Recruiting

The Establishment of a Registry and a Biorepository of Patients With Suspected Amniotic Fluid Embolism (AFE)

Amniotic Fluid Embolism
The University of Texas Health Science Center, Houston400 enrolled1 locationNCT05791786