Phase 4 Influenza Clinical Trials
27 recruitingPhase 4
What is a Phase 4 trial?
Phase 4 trials, also called post-marketing studies, are conducted after a treatment has been approved and is available to the public. They monitor long-term effectiveness and safety in a broader population.
Showing 1–20 of 27 trials
Recruiting
Phase 4
Woodsmoke Exposure, Influenza Infection, and Nasal Immunity
InfluenzaSmoke Exposure
University of North Carolina, Chapel Hill112 enrolled1 locationNCT06841913
Not Yet Recruiting
Phase 3Phase 4
Adjuvanted and standard influenza vaccines: an evaluation of their immunogenicity in healthy younger adults (The ADJUSTIVE Study)
Influenza
The University of Melbourne66 enrolled1 locationACTRN12626000334303
Recruiting
Phase 4
Characterization of Humoral and Cellular Immune Responses Elicited by Influenza Vaccination in Healthy Adults
Influenza, Human
University of Pennsylvania700 enrolled1 locationNCT05108818
Recruiting
Phase 4
The Dynamics of the Immune Responses to Repeat Influenza Vaccination Exposures (DRIVE III) Study
Influenza
The University of Hong Kong600 enrolled1 locationNCT07240922
Recruiting
Phase 4
B Cell and Antibody Response to Seasonal Influenza Vaccines in Younger and Older Adults
Influenza
University of Alabama at Birmingham50 enrolled1 locationNCT04101838
Recruiting
Phase 4
Characterizing the Human Airway Immune Response to FluMist Vaccination
Healthy Young AdultsInfluenza VaccinesInfluenza Vaccine Response
Washington University School of Medicine30 enrolled1 locationNCT07177417
Recruiting
Phase 4
Antibiotic Therapy in Viral Airway Infections
Respiratory Tract InfectionsRespiratory Syncytial Virus (RSV)Influenza+1 more
University Hospital, Akershus380 enrolled12 locationsNCT05045612
Recruiting
Phase 4
Tfh Dysfunction in HIV and Aging
Human Influenza
University of Miami400 enrolled1 locationNCT04487041
Recruiting
Phase 4
A Deep Longitudinal Analysis of Next Generation Influenza Vaccines in Older Adults
AgingVaccine ResponseInfluenza Vaccine+1 more
The Jackson Laboratory75 enrolled1 locationNCT05518500
Recruiting
Phase 4
Bone Marrow and Peripheral Blood Immune Responses Study
Influenza
Emory University90 enrolled1 locationNCT05616546
Suspended
Phase 4
A randomised control trial to evaluate the reactions of co-administration of influenza and COVID-19 vaccines
COVID-19Influenza
Sydney Local Health District1,000 enrolled1 locationACTRN12621001063808
Completed
Phase 3Phase 4
Effect of Yeast Beta Glucan (Saccharomyces cerevisiae) compared to a placebo on cold and flu symptoms in an Adult Population – A double blind, randomised controlled trial.
Influenza viral infection
RDC Global Pty Ltd.250 enrolled1 locationACTRN12620001285943
Completed
Phase 4
Trialling a double-dose of influenza vaccine to examine the efficacy of the influenza vaccination in patients with chronic obstructive pulmonary disease (COPD)
Influenza viral diseaseChronic Obstructive Pulmonary Disease
Princess Alexandra Hospital43 enrolled2 locationsACTRN12620000954921
Completed
Phase 4
Evaluation of efficacy and safety of an enhanced influenza vaccination schedule in immunocompromised children undergoing treatment for cancer.
Response to influenza vaccineInfluenza infectionCancer
CAHS80 enrolled1 locationACTRN12620000548932
Terminated
Phase 4
Effect of an Olive Leaf Extract compared to a placebo on Cold and Flu Symptoms in an Adult Population – A double blind, randomised controlled trial
Influenza virus infection
Pharmactive200 enrolled1 locationACTRN12619001722189
Terminated
Phase 3Phase 4
Reactogenicity Study of Afluria Quad/Afluria Quad Junior in Children
Influenza, Humans
Seqirus1,800 enrolled1 locationACTRN12619000792123
Completed
Phase 4
A study on the influence of obesity on the protection after influenza vaccination in children aged 9-17 years.
Response to influenza vaccinationObesity in children and adolescents
Women's and Children's Hospital50 enrolled1 locationACTRN12617001086358
Completed
Phase 4
A double-blind, randomised, placebo-controlled study to evaluate the safety and efficacy of Sambucol liquid formulation to reduce the duration and severity of the common cold and flu symptoms in adults.
Treatment of InfluenzaTreatment of common cold
Prof Luis Vitetta200 enrolled1 locationACTRN12615000506594
Completed
Phase 4
Influenza Specific Immunity After Vaccination in Recipients of Haematopoietic Stem Cell Transplantation Compared to Healthy Controls
Autologous or allogeneicInfluenzaHaematopoietic Stem Cell Transplant patients
Princess Margaret Hospital for children150 enrolled4 locationsACTRN12614000240640
Completed
Phase 3Phase 4
A study to evaluate the safety and efficacy of a complementary medicine formulation, to help relieve cold & flu symptoms and reduce duration of a cold, in otherwise healthy adults.
Treatment of InfluenzaTreatment of the Common Cold
A/Professor Luis Vitetta144 enrolled1 locationACTRN12612001199808