Influenza Vaccination Strategies in Patients with Hematologic Cancer.
Victoria G Hall, Olivia C Smibert, Sheena G Sullivan...
https://pubmed.ncbi.nlm.nih.gov/39813653Actively Recruiting
Led by Asan Medical Center · Updated on 2026-03-24
60
Participants Needed
1
Research Sites
52 weeks
Total Duration
This research aims to evaluate and compare the immune response generated by three different influenza vaccines in patients with blood cancers, including those undergoing autologous stem cell transplantation or CAR-T cell therapy. Patients with hematologic malignancies have a much higher risk of influenza infection and severe complications due to their weakened immune systems from disease and treatment. The study focuses on identifying which vaccine formulation produces the strongest antibody and T cell responses, important for protection in this vulnerable group. The trial compares three vaccines: a high-dose trivalent inactivated influenza vaccine (HD-IIV3), an MF59-adjuvanted quadrivalent inactivated influenza vaccine (aIIV4), and a standard-dose trivalent inactivated influenza vaccine (SD-IIV3). Each vaccine is given as a single intramuscular injection during the flu season. Participants are randomly assigned to receive one of these vaccines to assess differences in immune responses. Participants will be monitored at baseline and followed up on Days 28, 180, and 365 after vaccination. The study will measure antibody levels and T cell activity using blood tests to evaluate immune response. The main outcome is the rate of seroconversion at Day 28 post-vaccination. Safety and immune response will be closely observed throughout the study, which continues until April 2028.
CONDITIONS
Influenza Vaccination Strategy for Patients With Hematologic Malignancy
You may qualify if you...
You will not qualify if you...
Complete this quick 3-step screening to check your eligibility
Duration - 2 to 4 weeks
Participants are screened for eligibility to participate in the trial.
1 visit (in-person)
Duration - Single day
Participants receive a single intramuscular injection of one of three influenza vaccines: high-dose trivalent, MF59-adjuvanted quadrivalent, or standard-dose trivalent during the influenza season.
1 vaccination visit (in-person)
Duration - Up to 1 year
Participants undergo immunogenicity assessments including antibody and cellular immune responses at multiple time points after vaccination.
Visits at Day 28, Day 180, and Day 365 post-vaccination (in-person)
Total: 1 location
1
Asan Medical Center
Seoul, South Korea
Actively Recruiting
S
So Yun Lim, MD, PhD
S
Sung-Han Kim, MD, PhD
Study Type
INTERVENTIONAL
Masking
NONE
Allocation
RANDOMIZED
Model
PARALLEL
Primary Purpose
BASIC_SCIENCE
Number of Arms
3
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