Biomarker-Guided CNI Substitution In Kidney Transplantation

This study is for adults aged 18 to 70 who are receiving their first kidney transplant. It aims to see if a biomarker (a biological indicator) called HLA-DR/DQ molecular mismatch (mMM) can predict how well a kidney transplant will do. Initially, 800 participants will be observed for 6 months. After this, 300 eligible participants will be randomly assigned to either continue their standard care (Tacrolimus, Mycophenolic Acid (MPA), and Prednisone) or switch to a different medication called Abatacept. Researchers will then compare how well their kidneys are working and look at other health outcomes over 18 months.

Study design
This is an interventional study with an initial observational phase enrolling 800 participants, followed by a nested randomized control trial involving 300 participants. Participants will be randomly assigned to receive either Abatacept or standard care.
What's involved
Participants will be followed for up to 24 months post-transplant in the observational study, and for 18 months post-randomization in the nested trial. This will involve monitoring for alloimmune events and assessing kidney function.
Compensation
Not stated in the trial record.
Follow-up
Participants in the observational study will be followed for up to 24 months post-transplant. Those in the nested randomized control trial will be followed for 18 months after randomization.

AI-generated from the public study record. Only the study team can confirm whether you're eligible — confirm details with them before making decisions.

NCT05917522

Assessment of Biomarker-Guided CNI Substitution In Kidney Transplantation

Recruiting
PHASE2Ages 18–70InterventionalTreatment
National Institute of Allergy and Infectious Diseases (NIAID)
~800 participants
Updated 2026-03-23 on ClinicalTrials.gov
What's tested:AbataceptStandard of Care at US Transplant Centers

At a glance

Recruiting sites
13 of 15 listed sites are recruiting right now
RecruitingSuspended, closed, or not yet open
What they're measuring
In the Observational Study - The occurrence of any alloimmune event
Measured over Up to 24 months post-Kidney Transplant
+1 more outcome measured
Kidney Transplant
15 sites across 13 states
California2
Pennsylvania2
Alabama1
Connecticut1
Maryland1
Massachusetts1
Minnesota1
Missouri1
  • Peter S Heeger, M.D. · STUDY_CHAIR · Cedars Sinai Medical Center: Transplantation
  • Peter Nickerson, M.D. · STUDY_CHAIR · University of Manitoba Max Rady College of Medicine - Transplantation

Opens a ready-to-send draft in your own email app — review before sending.

  • In the Observational Study - The occurrence of any alloimmune eventUp to 24 months post-Kidney Transplant

    including de novo Donor Specific Antibody (DSA), any Biopsy Proven Acute Rejection (BPAR) (Banff borderline or greater, on a for-cause or the 6-month post-transplant protocol biopsy) and censored by non-alloimmune graft failure or death with function or lost-to-follow up.

  • In the Nested Randomized Control Trial (RCT) - Renal function, measured as the difference in eGFRCKD-EPI at 24-months between groups (adjusted for renal function at randomization).At 18 months post-randomization (24 months post-transplant)