Influenza Vaccination Strategy for Patients With Hematologic Malignancy
(HEM-FLU)
Comparison of Immunogenicity of Different Influenza Vaccines in Patients With Hematologic Malignancies
2 other identifiers
interventional
60
1 country
1
Brief Summary
This randomized controlled trial evaluates and compares the immunogenicity of three different influenza vaccine formulations: high-dose trivalent (HD-IIV3), MF59-adjuvanted quadrivalent (aIIV4), and standard-dose trivalent (SD-IIV3) vaccines. The study population consists of patients with hematologic malignancies, including those undergoing autologous stem cell transplantation or CAR-T cell therapy. The primary goal is to identify which vaccine strategy elicits the most robust antibody and T cell-mediated immune responses in this severely immunocompromised population
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for phase_3
Started Dec 2025
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
Study Start
First participant enrolled
December 4, 2025
CompletedFirst Submitted
Initial submission to the registry
March 17, 2026
CompletedFirst Posted
Study publicly available on registry
March 20, 2026
CompletedPrimary Completion
Last participant's last visit for primary outcome
April 30, 2027
ExpectedStudy Completion
Last participant's last visit for all outcomes
April 30, 2028
March 24, 2026
March 1, 2026
1.4 years
March 17, 2026
March 20, 2026
Conditions
Outcome Measures
Primary Outcomes (1)
Seroconversion rate at Day 28 post-vaccination
Proportion of participants achieving ≥4-fold rise in hemagglutinin inhibition (HAI) titer from baseline at Day 28, compared among HD-IIV3, aIIV4, and SD-IIV3 arms
Day 28 (±7 days) post-vaccination
Secondary Outcomes (1)
Other Immunogenicity
Day 28 (±7 days), Day 180(±30 days), and Day 365(±30 days) post-vaccination
Study Arms (3)
Standard dose Influenza vaccine
ACTIVE COMPARATORStandard dose Influenza vaccine
High dose influenza vaccine
EXPERIMENTALHigh dose influenza vaccine
MF.59 adjuvant influenza vaccine
EXPERIMENTALMF.59 adjuvant influenza vaccine
Interventions
High-dose trivalent inactivated influenza vaccine containing 60 µg hemagglutinin per strain (4× standard dose). Single intramuscular injection administered during the influenza season.
MF59C.1 squalene-based adjuvanted quadrivalent inactivated influenza vaccine containing 15 µg hemagglutinin per strain. Single intramuscular injection administered during the influenza season.
Standard-dose trivalent inactivated influenza vaccine containing 15 µg hemagglutinin per strain. Single intramuscular injection administered during the influenza season. Active comparator.
Eligibility Criteria
You may qualify if:
- Adults aged 19 years or older
- Confirmed diagnosis of hematologic malignancy, including:
- non-Hodgkin lymphoma, Hodgkin lymphoma, acute leukemia, chronic leukemia, or plasma cell disorders
You may not qualify if:
- Difficulty with repeated venipuncture or blood sampling (e.g., poor vascular access or bleeding tendency)
- Cognitive or psychiatric impairment precluding understanding of or cooperation with study procedures
- Known hypersensitivity to influenza vaccine components
- Influenza vaccination within the preceding 6 months
- Any other condition deemed clinically inappropriate for study participation at investigator discretion
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Asan Medical Center
Seoul, South Korea
Related Publications (11)
Hall VG, Smibert OC, Sullivan SG, Lim C, Barr IG, Peck H, Fuge-Larsen P, Demajo J, Klimevski E, Tennakoon S, Saunders NR, Joyce T, Whitechurch A, Khot A, Anderson MA, Trubiano JA, Yong MK, Worth LJ, Spelman T, Slavin MA, Teh BW. Influenza Vaccination Strategies in Patients with Hematologic Cancer. N Engl J Med. 2025 Jan 16;392(3):306-308. doi: 10.1056/NEJMc2406750. No abstract available.
PMID: 39813653BACKGROUNDSilva-Moraes V, Reis LR, Ross TM. Comparative analysis of cellular immune responses to four seasonal inactivated influenza vaccines in younger and older adults. J Immunol. 2026 Feb 9;215(2):vkaf286. doi: 10.1093/jimmun/vkaf286.
PMID: 41166714BACKGROUNDHall VG, Nguyen THO, Smibert OC, Allen LF, Sullivan SG, Fox A, Carolan L, Wheatley AK, Kent SJ, Gilbertson B, Lim C, Barr IG, Peck H, Fuge-Larsen P, Klimevski E, Tennakoon S, Saunders NR, Joyce T, Whitechurch A, Khot A, Anderson MA, Trubiano JA, Worth LJ, Yong MK, Slavin MA, Kedzierska K, Teh BW. Influenza-Specific T-Cell Responses to Vaccination Are Independent of Underlying Hematological Malignancy: Analysis of a Randomized Influenza Vaccination Trial. J Infect Dis. 2025 Dec 20;232(6):1319-1329. doi: 10.1093/infdis/jiaf297.
PMID: 40600710BACKGROUNDKinoshita H, Walti CS, Webber K, Pezzella G, Jensen-Wachspress M, Lang H, Shuey K, Boonyaratanakornkit J, Pergam SA, Chu HY, Bollard CM, Keller MD, Hill JA. T Cell Immune Response to Influenza Vaccination When Administered Prior to and Following Autologous Chimeric Antigen Receptor-Modified T Cell Therapy. Transplant Cell Ther. 2025 May;31(5):327-338. doi: 10.1016/j.jtct.2025.02.019. Epub 2025 Mar 1.
PMID: 40032074BACKGROUNDBranagan AR, Duffy E, Gan G, Li F, Foster C, Verma R, Zhang L, Parker TL, Seropian S, Cooper DL, Brandt D, Kortmansky J, Witt D, Ferencz TM, Dhodapkar KM, Dhodapkar MV. Tandem high-dose influenza vaccination is associated with more durable serologic immunity in patients with plasma cell dyscrasias. Blood Adv. 2021 Mar 9;5(5):1535-1539. doi: 10.1182/bloodadvances.2020003880.
PMID: 33683337BACKGROUNDNatori Y, Humar A, Lipton J, Kim DD, Ashton P, Hoschler K, Kumar D. A pilot randomized trial of adjuvanted influenza vaccine in adult allogeneic hematopoietic stem cell transplant recipients. Bone Marrow Transplant. 2017 Jul;52(7):1016-1021. doi: 10.1038/bmt.2017.24. Epub 2017 Mar 6.
PMID: 28263288BACKGROUNDHalasa NB, Savani BN, Asokan I, Kassim A, Simons R, Summers C, Bourgeois J, Clifton C, Vaughan LA, Lucid C, Wang L, Fonnesbeck C, Jagasia M. Randomized Double-Blind Study of the Safety and Immunogenicity of Standard-Dose Trivalent Inactivated Influenza Vaccine versus High-Dose Trivalent Inactivated Influenza Vaccine in Adult Hematopoietic Stem Cell Transplantation Patients. Biol Blood Marrow Transplant. 2016 Mar;22(3):528-35. doi: 10.1016/j.bbmt.2015.12.003. Epub 2015 Dec 17.
PMID: 26705931BACKGROUNDThomas LD, Batarseh E, Hamdan L, Haddadin Z, Dulek D, Kalams S, Stewart LS, Stahl AL, Rahman H, Amarin JZ, Hayek H, Ison M, Overton ET, Pergam SA, Spieker AJ, Halasa NB; Adult HCT Flu Study. Comparison of Two High-Dose Versus Two Standard-Dose Influenza Vaccines in Adult Allogeneic Hematopoietic Cell Transplant Recipients. Clin Infect Dis. 2023 Dec 15;77(12):1723-1732. doi: 10.1093/cid/ciad458.
PMID: 39219510BACKGROUNDWhitaker JA, Parikh SA, Shanafelt TD, Kay NE, Kennedy RB, Grill DE, Goergen KM, Call TG, Kendarian SS, Ding W, Poland GA. The humoral immune response to high-dose influenza vaccine in persons with monoclonal B-cell lymphocytosis (MBL) and chronic lymphocytic leukemia (CLL). Vaccine. 2021 Feb 12;39(7):1122-1130. doi: 10.1016/j.vaccine.2021.01.001. Epub 2021 Jan 16.
PMID: 33461835BACKGROUNDTeh BW, Leung VKY, Mordant FL, Sullivan SG, Joyce T, Harrison SJ, Khvorov A, Barr IG, Subbarao K, Slavin MA, Worth LJ. A Randomized Trial of Two 2-Dose Influenza Vaccination Strategies for Patients Following Autologous Hematopoietic Stem Cell Transplantation. Clin Infect Dis. 2021 Dec 6;73(11):e4269-e4277. doi: 10.1093/cid/ciaa1711.
PMID: 33175132BACKGROUNDCowling BJ, Perera RAPM, Valkenburg SA, Leung NHL, Iuliano AD, Tam YH, Wong JHF, Fang VJ, Li APY, So HC, Ip DKM, Azziz-Baumgartner E, Fry AM, Levine MZ, Gangappa S, Sambhara S, Barr IG, Skowronski DM, Peiris JSM, Thompson MG. Comparative Immunogenicity of Several Enhanced Influenza Vaccine Options for Older Adults: A Randomized, Controlled Trial. Clin Infect Dis. 2020 Oct 23;71(7):1704-1714. doi: 10.1093/cid/ciz1034.
PMID: 31828291BACKGROUND
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Sung-Han Kim, MD, PhD
Asan Medical Center
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- phase 3
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- BASIC SCIENCE
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Professor
Study Record Dates
First Submitted
March 17, 2026
First Posted
March 20, 2026
Study Start
December 4, 2025
Primary Completion (Estimated)
April 30, 2027
Study Completion (Estimated)
April 30, 2028
Last Updated
March 24, 2026
Record last verified: 2026-03
Data Sharing
- IPD Sharing
- Will not share
IPD will not be shared publicly to protect patient privacy and confidentiality, in strict accordance with the Institutional Review Board (IRB) approval conditions for this trial.