High dose influenza vaccine for solid organ transplant recipients

Seasonal Influenza Vaccine High Dose Boosting in Solid Organ Transplant Recipients

Not applicable Interventional University of Minnesota · NCT05663463

This study tests whether giving two doses of a stronger flu vaccine can help solid organ transplant recipients build better immunity compared to just one dose.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment100 (estimated)
Ages18 Years and up
SexAll
SponsorUniversity of Minnesota Academic / other
Drugs / interventionsrituximab, basiliximab, Prednisone
Locations1 site (Minneapolis, Minnesota)
Trial IDNCT05663463 on ClinicalTrials.gov

What this trial studies

This study evaluates the effectiveness of administering two doses of a high-dose influenza vaccine to solid organ transplant recipients to enhance their immune response. Participants will be compared to a control group receiving only one dose of the vaccine. The primary goal is to measure the immunogenicity of the vaccine using neutralizing antibody assays, which will help determine the best vaccination strategy for this vulnerable population.

Who should consider this trial

Good fit: Ideal candidates are adults aged 18 and older who have undergone a solid organ transplant at least one year prior to enrollment.

Not a fit: Patients who are pregnant or have received certain immunosuppressive therapies within the last three months may not benefit from this study.

Why it matters

Potential benefit: If successful, this approach could significantly improve the immune response to influenza in solid organ transplant recipients, reducing the severity of the disease.

How similar studies have performed: Previous studies have shown that optimizing vaccine strategies can improve outcomes in solid organ transplant recipients, suggesting potential success for this approach.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* \>=18 years old who underwent a solid organ transplant (Liver, lung, heart, kidney, pancreas) \> 1 year prior to enrollment
* At least 1-year post-transplant
* Able and willing to provide informed consent
* Able and willing to undergo all study activities throughout the duration of the study

Exclusion Criteria:

* Confirmed pregnancy
* Receipt of ATG or carfilzomib within the past 3 months
* Receipt of rituximab within the past 3 months
* Receipt of basiliximab within the past 3 months
* Prednisone dose \>= 20 mg/day at the time of enrollment
* History of a severe allergy to influenza vaccine (i.e. Guillain Barre syndrome, anaphylaxis or angioedema)

Where this trial is running

Minneapolis, Minnesota

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Solid Organ Transplant
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.