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Showing 1–24 of 32 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Influenza Vaccine Recipients Clear all
Completed Phase 1 Interventional Results available

Standard vs High-Dose Trivalent Inactivated Flu Vaccine in Adult Hematopoetic Stem Cell Transplant (HSCT) Recipients

NCT01215734
View directory record Official record
Conditions
Adult Stem Cell Hematopoetic Transplant
Interventions
High-Dose Trivalent Inactivated Influenza Vaccine (HD-TIV), Standard Dose Trivalent Inactivated Flu Vaccine
Biological
Lead sponsor
Vanderbilt-Ingram Cancer Center
Other
Eligibility
18 Years and older
Enrollment
44 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Mar 7, 2013 · Synced Sep 24, 2026, 1:21 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Kinetics of the Immune Response to Inactivated Influenza Vaccine in Healthy Adults

NCT03743688
View directory record Official record
Conditions
Influenza, Influenza, Human, Vaccine Reaction, Influenza A, Influenza Type B, Influenza A H1N1, Influenza A H3N2
Interventions
Influenza Vaccine Recipients
Biological
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years to 45 Years
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Aug 4, 2019 · Synced Sep 24, 2026, 1:21 AM EDT
Completed Phase 2 Interventional Results available

High vs. Standard Dose Flu Vaccine in Adult Stem Cell Transplant Recipients

NCT03179761
View directory record Official record
Conditions
Hematopoietic Cell Transplantation
Interventions
Quadrivalent Inactivated Influenza Vaccine, Laboratory Biomarker Analysis, Trivalent Influenza Vaccine
Biological · Other
Lead sponsor
Vanderbilt-Ingram Cancer Center
Other
Eligibility
18 Years and older
Enrollment
124 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2024
U.S. locations
4
States / cities
Birmingham, Alabama • Chicago, Illinois • Nashville, Tennessee + 1 more
Source: ClinicalTrials.gov public record
Updated Dec 3, 2024 · Synced Sep 24, 2026, 1:21 AM EDT
Recruiting Phase 2 Interventional

High vs. Standard Dose Influenza Vaccines in Lung Transplant (Repeater)

NCT07192458
View directory record Official record
Conditions
Immunization; Infection|Transplantation Infection|Influenza, Influenza
Interventions
Fluzone High Dose Inactivated Influenza Vaccine, Fluzone Standard Dose Inactivated Influenza Vaccine
Biological
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2029
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Oct 6, 2025 · Synced Sep 24, 2026, 1:21 AM EDT
Not yet recruiting Not applicable Interventional Accepts healthy volunteers

A Human Influenza Transmission Study Using Naturally Infected Community Donors

NCT07814495
View directory record Official record
Conditions
Influenza
Interventions
Influenza Donor Visit, Influenza Recipient Inpatient Exposures Sessions
Other
Lead sponsor
Emory University
Other
Eligibility
18 Years to 49 Years
Enrollment
150 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2031
U.S. locations
2
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Sep 10, 2026 · Synced Sep 24, 2026, 1:21 AM EDT
Recruiting Phase 2 Interventional

High vs.Standard Dose Influenza Vaccine in Pediatric Solid Organ Transplant (SOT) Recipients

NCT05947071
View directory record Official record
Conditions
Immunization; Infection, Transplantation Infection, Influenza
Interventions
Standard Dose Quadrivalent Inactivated Influenza Vaccine, High Dose Quadrivalent Inactivated Influenza Vaccine
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
3 Years to 17 Years
Enrollment
312 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
8
States / cities
Stanford, California • Atlanta, Georgia • Chicago, Illinois + 5 more
Source: ClinicalTrials.gov public record
Updated Apr 20, 2026 · Synced Sep 24, 2026, 1:21 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Conectados: Social Networks and Social Media for Vaccine Uptake

NCT07096245
View directory record Official record
Conditions
Vaccination
Interventions
Vaccine Information Video Dissemination
Behavioral
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
507 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Mar 5, 2026 · Synced Sep 24, 2026, 1:21 AM EDT
Completed Not applicable Interventional

Seasonal Influenza Vaccine High Dose Boosting in Solid Organ Transplant Recipients

NCT05663463
View directory record Official record
Conditions
Solid Organ Transplant
Interventions
Fluzone High-Dose - 2 doses, Fluzone High-Dose - 1 dose of HD
Drug
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years and older
Enrollment
74 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Jul 14, 2025 · Synced Sep 24, 2026, 1:21 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

DMID 21-0041; Influenza CVD 59000

NCT05666245
View directory record Official record
Conditions
Influenza
Interventions
Personal Protective Equipment (PPE) - Under High Air Hygiene, No Intervention - Under High Air Hygiene, Personal Protective Equipment (PPE) - Under Low Air Hygiene, No Intervention - Under Low Air Hygiene
Behavioral
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
18 Years to 59 Years
Enrollment
34 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
2
States / cities
Baltimore, Maryland • College Park, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 25, 2025 · Synced Sep 24, 2026, 1:21 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

Xofluza-Wearables Feasibility-Study

NCT06161454
View directory record Official record
Conditions
Infection, Coronavirus, Infections, Influenza, Transplant, Infection Viral
Interventions
Baloxavir Marboxil
Drug
Lead sponsor
Children's Hospital of Philadelphia
Other
Eligibility
2 Years and older
Enrollment
498 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 10, 2025 · Synced Sep 24, 2026, 1:21 AM EDT
Terminated Phase 2Phase 3 Interventional Results available

Baloxavir in Combination With Oseltamivir in Allogenic Bone Marrow Transplant Recipients With Influenza

NCT05170009
View directory record Official record
Conditions
Influenza
Interventions
Baloxavir Marboxil, Placebo, Oseltamivir
Drug
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
18 Years and older
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Feb 25, 2025 · Synced Sep 24, 2026, 1:21 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Mail Outreach To Increase Vaccination Acceptance Through Engagement

NCT02243774
View directory record Official record
Conditions
Influenza, Human, Influenza, Human Flu
Interventions
Core letter signed by Surgeon General, Core letter signed by the Director of the National Vaccine Program, Core letter signed by Surgeon General + implementation prompt, Core letter signed by SG + enhanced implementation prompt
Behavioral
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
66 Years and older
Enrollment
228,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2015
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 11, 2017 · Synced Sep 24, 2026, 1:21 AM EDT
Active, not recruiting Phase 2 Interventional

High vs. Standard Dose Influenza Vaccine in Lung Allograft Recipients

NCT05215327
View directory record Official record
Conditions
Immunization; Infection, Transplantation Infection, Influenza
Interventions
High Dose Quadrivalent Inactivated Influenza Vaccine, Standard Dose Quadrivalent Inactivated Influenza Vaccine
Biological
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
16 Years and older
Enrollment
270 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Sep 3, 2026 · Synced Sep 24, 2026, 1:21 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers Results available

Influenza Vaccine Post Allogeneic Transplant

NCT01215981
View directory record Official record
Conditions
Hematopoietic Stem Cell Transplant, Hematologic Malignancy
Interventions
Influenza vaccine
Biological
Lead sponsor
Masonic Cancer Center, University of Minnesota
Other
Eligibility
6 Months and older
Enrollment
68 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2011
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Dec 27, 2017 · Synced Sep 24, 2026, 1:21 AM EDT
Recruiting No phase listed Observational

Response to Influenza Vaccination in Pediatric Oncology Patients

NCT05384288
View directory record Official record
Conditions
Hematologic Malignancy, Pediatric Cancer, Transplant-Related Cancer
Interventions
Not listed
Lead sponsor
St. Jude Children's Research Hospital
Other
Eligibility
Up to 18 Years
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2029
U.S. locations
1
States / cities
Memphis, Tennessee
Source: ClinicalTrials.gov public record
Updated Jun 11, 2026 · Synced Sep 24, 2026, 1:21 AM EDT
Active, not recruiting Phase 2 Interventional

High vs. Standard Dose Influenza Vaccine in Adult SOT Recipients

NCT04613206
View directory record Official record
Conditions
Immunization; Infection, Transplantation Infection, Influenza, Solid Organ Transplant
Interventions
High Dose Quadrivalent Inactivated Influenza Vaccine, Standard Dose Quadrivalent Inactivated Influenza Vaccine
Biological
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years and older
Enrollment
396 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2026
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Jan 20, 2026 · Synced Sep 24, 2026, 1:21 AM EDT
Withdrawn Phase 2 Interventional

High Dose Influenza in Immunosuppressed Subjects

NCT00766285
View directory record Official record
Conditions
Influenza
Interventions
Trivalent inactivated influenza vaccine, Trivalent Baculovirus-expressed Influenza HA vaccine
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
Ends 2010
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Aug 2, 2015 · Synced Sep 24, 2026, 1:21 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

Influenza Vaccine in Pediatric Transplant Subjects

NCT00133510
View directory record Official record
Conditions
Influenza
Interventions
Trivalent Subviron Influenza vaccine (Fluzone)
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
6 Months to 17 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2006
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Aug 26, 2010 · Synced Sep 24, 2026, 1:21 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Flu Vaccine in Preventing Influenza Infection in Healthy Volunteers and in Patients Who Have Undergone Stem Cell Transplant

NCT00964821
View directory record Official record
Conditions
Chronic Myeloproliferative Disorders, Leukemia, Lymphoma, Multiple Myeloma and Plasma Cell Neoplasm, Myelodysplastic Syndromes, Myelodysplastic/Myeloproliferative Neoplasms, Nonmalignant Neoplasm
Interventions
trivalent influenza vaccine, Immunoenzyme technique, Laboratory biomarker analysis
Biological · Other
Lead sponsor
City of Hope Medical Center
Other
Eligibility
18 Years to 120 Years
Enrollment
459 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2013
U.S. locations
2
States / cities
Duarte, California • Pasadena, California
Source: ClinicalTrials.gov public record
Updated Nov 6, 2017 · Synced Sep 24, 2026, 1:21 AM EDT
Not yet recruiting Not applicable Interventional Accepts healthy volunteers

Evaluating Modes of Influenza Transmission 2b Baseline SAR

NCT07342556
View directory record Official record
Conditions
Influenza (Healthy Volunteers)
Interventions
Exposure to Donors with naturally acquired influenza virus infection
Other
Lead sponsor
University of Maryland, College Park
Other
Eligibility
18 Years to 49 Years
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026
U.S. locations
1
States / cities
College Park, Maryland
Source: ClinicalTrials.gov public record
Updated Jan 14, 2026 · Synced Sep 24, 2026, 1:21 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Evaluating the Safety and Immune Response of an H7N7 Vaccine in Healthy Adults

NCT01534468
View directory record Official record
Conditions
Influenza A Subtype H7N7 Infection
Interventions
Monovalent Influenza Subvirion Vaccine, H7N7
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 50 Years
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2014
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Dec 14, 2015 · Synced Sep 24, 2026, 1:21 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study to Evaluate the Safety and Immunogenicity of a Single Dose of H1ssF-3928 mRNA-LNP in Healthy Adults

NCT05755620
View directory record Official record
Conditions
Influenza
Interventions
Influenza Virus Quadrivalent Inactivated Vaccine, Sodium Chloride, 0.9%, VRC-FLUNPF099-00-VP (H1ssF_3928)
Biological · Other
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 49 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 17, 2026 · Synced Sep 24, 2026, 1:21 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Influenza Vaccine in Lung Transplant Patients - Seroprotection

NCT04531657
View directory record Official record
Conditions
Influenza
Interventions
Influenza vaccine
Drug
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years and older
Enrollment
79 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2009
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Oct 22, 2020 · Synced Sep 24, 2026, 1:21 AM EDT
Completed No phase listed Observational Accepts healthy volunteers Results available

Flublok v. Standard Dose Vaccine Effectiveness Among Kaiser Permanente Northern California Adults 18-64 Years

NCT03694392
View directory record Official record
Conditions
Influenza, Pneumonia, Lower Respiratory Tract Infection, Acute Myocardial Infarction, Congestive Heart Failure, Stroke
Interventions
Flublok Quadrivalent, Standard Dose Inactivated Influenza Vaccine (SD-IIV)
Biological
Lead sponsor
Kaiser Permanente
Other
Eligibility
18 Years to 64 Years
Enrollment
2,776,278 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2022
U.S. locations
1
States / cities
Oakland, California
Source: ClinicalTrials.gov public record
Updated Apr 7, 2025 · Synced Sep 24, 2026, 1:21 AM EDT