Actively Recruiting

Phase 3
Age: 19Years +
All Genders
ID07485855

Comparison of Immunogenicity of High-Dose, Adjuvanted, and Standard Influenza Vaccines in Patients With Hematologic Malignancies

Led by Asan Medical Center · Updated on 2026-03-24

60

Participants Needed

1

Research Sites

52 weeks

Total Duration

On this page

AI-Summary

What this Trial Is About

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

Brief Title

Influenza Vaccination Strategy for Patients With Hematologic Malignancy

Who Can Participate

Age: 19Years +
All Genders

Eligibility Criteria

Eligible

You may qualify if you...

  • 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
Not Eligible

You will not qualify if you...

  • Difficulty with repeated venipuncture or blood sampling such as poor vascular access or bleeding tendency
  • Cognitive or psychiatric impairment that prevents understanding or cooperating with study procedures
  • Known allergy to influenza vaccine components
  • Influenza vaccination within the past 6 months
  • Any condition considered clinically inappropriate for participation by the investigator

AI-Screening

AI-Powered Screening

Complete this quick 3-step screening to check your eligibility

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Your Study Journey

Screening

Duration - 2 to 4 weeks

Participants are screened for eligibility to participate in the trial.

1 visit (in-person)

Treatment

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)

Monitoring

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)

Trial Site Locations

Total: 1 location

1

Asan Medical Center

Seoul, South Korea

Actively Recruiting

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Research Team

S

So Yun Lim, MD, PhD

S

Sung-Han Kim, MD, PhD

How is the study designed?

Study Type

INTERVENTIONAL

Masking

NONE

Allocation

RANDOMIZED

Model

PARALLEL

Primary Purpose

BASIC_SCIENCE

Number of Arms

3

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Published Research Related To This Trial

Comparative analysis of cellular immune responses to four seasonal inactivated influenza vaccines in younger and older adults.

Vanessa Silva-Moraes, Laise Rodrigues Reis, Ted M Ross

https://pubmed.ncbi.nlm.nih.gov/41166714

Influenza-Specific T-Cell Responses to Vaccination Are Independent of Underlying Hematological Malignancy: Analysis of a Randomized Influenza Vaccination Trial.

Victoria G Hall, Thi H O Nguyen, Olivia C Smibert...

https://pubmed.ncbi.nlm.nih.gov/40600710

T Cell Immune Response to Influenza Vaccination When Administered Prior to and Following Autologous Chimeric Antigen Receptor-Modified T Cell Therapy.

Hannah Kinoshita, Carla S Walti, Kathleen Webber...

https://pubmed.ncbi.nlm.nih.gov/40032074

Tandem high-dose influenza vaccination is associated with more durable serologic immunity in patients with plasma cell dyscrasias.

Andrew R Branagan, Eamon Duffy, Geliang Gan...

https://pubmed.ncbi.nlm.nih.gov/33683337

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.

Natasha B Halasa, Bipin N Savani, Ishan Asokan...

https://pubmed.ncbi.nlm.nih.gov/26705931

Comparison of Two High-Dose Versus Two Standard-Dose Influenza Vaccines in Adult Allogeneic Hematopoietic Cell Transplant Recipients.

Lora D Thomas, Einas Batarseh, Lubna Hamdan...

https://pubmed.ncbi.nlm.nih.gov/39219510

The humoral immune response to high-dose influenza vaccine in persons with monoclonal B-cell lymphocytosis (MBL) and chronic lymphocytic leukemia (CLL).

Jennifer A Whitaker, Sameer A Parikh, Tait D Shanafelt...

https://pubmed.ncbi.nlm.nih.gov/33461835

A Randomized Trial of Two 2-Dose Influenza Vaccination Strategies for Patients Following Autologous Hematopoietic Stem Cell Transplantation.

Benjamin W Teh, Vivian K Y Leung, Francesca L Mordant...

https://pubmed.ncbi.nlm.nih.gov/33175132