Kidney Transplant clinical trials at UC Irvine

This study will evaluate the safety and efficacy of AT-1501 compared with tacrolimus in patients undergoing kidney transplantation.

The primary objective of the study is to assess the safety and tolerability of REGN5459 (Part A) or REGN5458 (Part B) as monotherapy in patients with chronic kidney disease (CKD) who need kidney transplantation and are highly sensitized to human leukocyte antigen (HLA). The secondary objectives of the study are to determine/assess the following for REGN5459 (Part A) or REGN5458 (Part B): - Dose regimen(s) that result in a clinically meaningful reduction of anti-HLA alloantibody levels - Effect on calculated panel-reactive antibody (cPRA) levels - Time to maximal and clinically meaningful reduction in anti-HLA alloantibody levels - Duration of the effect of study drug on the reduction of anti-HLA alloantibodies - Effect on circulating immunoglobulin (Ig) classes (isotypes) - Pharmacokinetics (PK) properties - Immunogenicity

The primary objective of the study is to assess adverse events (AEs) and serious adverse events (SAEs) in kidney transplant recipients previously treated with REGN5459 or REGN5458 in the R5459-RT-1944 study. The secondary objectives of the study are to evaluate each of the following in kidney transplant recipients previously treated with REGN5459 or REGN5458: - Rates and classification of antibody-mediated and T-cell-mediated kidney allograft rejection - Graft survival - Allograft function - Delayed allograft function - Anti-human leukocyte antigen (HLA) alloantibody levels and calculated panel-reactive antibody (cPRA) - Emergence of de novo donor-specific antibodies - Circulating immunoglobulin (Ig) classes (isotypes) - Pharmacokinetics (PK) of REGN5459 or REGN5458

The ProActive registry is a longitudinal, multi-center study with a prospective arm observing clinical care for patients receiving physician ordered Prospera, an allograft rejection test, and a historical control arm collecting data on cases at the same sites whose kidney allograft rejection status was managed with Serum Creatinine SCr/estimated Glomerular Filtration Rate eGFR. This registry will compare patient management and outcomes in patients who receive Prospera (Prospera arm) to the outcomes of the historical control group (control arm) to determine Prospera's clinical utility. High-risk subjects defined as having a biopsy-demonstrated rejection event or at least one pre-existing Donor Specific Antibody DSA with total Mean Fluorescent Intensity MFI>3000 or a calculated Panel Reactive Antibodies cPRA>70% will be followed for an additional period up to 24 months in both the Prospera arm and historical control arm.