Study on Reducing Immunosuppression After Pediatric Liver Transplant

This study is looking at whether children who have had a liver transplant can safely reduce their dose of tacrolimus, a medicine that prevents the body from rejecting the new organ. Researchers want to see if reducing tacrolimus by 50% in two steps is successful. The study will include 100 children between 3 and 13 years old who received a liver transplant when they were under 7 years old and are now 3 to 7 years post-transplant. The main goal is to see if this reduction is successful after 18 months.

Study design
This is an interventional study involving 100 participants. It is a multi-center, longitudinal study, meaning it follows participants over time at different locations.
What's involved
You would reduce your tacrolimus dose in two steps. You would have liver tests every 0.5 months for the first 4 months, then monthly until month 12, and every other month until month 18. You would also have clinic visits at screening, 6, 12, and 18 months, and a liver biopsy at 18 months.
Compensation
Not stated in the trial record.
Follow-up
The primary endpoint is assessed at 18 months after starting the dose reduction.

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NCT07549503

Early Signals of the Transition From Immune Quiescence to Activation in the Liver Allograft Microenvironment and in the Circulation

Recruiting
PHASE2Ages 3–13InterventionalTreatment
National Institute of Allergy and Infectious Diseases (NIAID)
~100 participants
Updated 2026-06-09 on ClinicalTrials.gov
What's tested:Tacrolimus reduction

At a glance

Recruiting sites
2 of 10 listed sites are recruiting right now
RecruitingSuspended, closed, or not yet open
What they're measuring
Achieving successful 50 percent Immunosuppression (IS) reduction
Measured over At 18 months
Liver Transplant
10 sites across 9 states
New York2
California1
Colorado1
District of Columbia1
Georgia1
Illinois1
Ohio1
Pennsylvania1
  • Sandy Feng, MD, Ph.D. · STUDY_CHAIR · University of California San Francisco School of Medicine: Transplantation
  • John Bucuvalas, M.D. · STUDY_CHAIR · Icahn School of Medicine at Mount Sinai: Transplantation

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  • Achieving successful 50 percent Immunosuppression (IS) reductionAt 18 months

    Defined as meeting both biochemical and histological criteria of stability