Immunological Reset to Enable Access to Hla-compatible Kidney Transplantation in Highly Sensitized Patients (RESET)

The purpose of this clinical trial is to evaluate whether a temporary reprogramming of the immune system can help highly sensitized (hyperimmunized) patients with end-stage kidney disease safely receive a compatible kidney transplant. Patients who are highly sensitized have developed an extremely high level of antibodies against human leukocyte antigens (HLA), often due to previous transplants, pregnancies, or blood transfusions. This condition makes it nearly impossible for them to find a compatible organ donor, leaving them stuck on dialysis indefinitely. This study tests an innovative strategy using Autologous Hematopoietic Stem Cell Transplantation (AHSCT). The procedure involves an intensive conditioning regimen using a combination of medications (cyclophosphamide, thymoglobulin, and rituximab) to deeply clear out the patient's existing mature immune cells. This is followed by the reinfusion of the patient's own previously collected and purified blood stem cells (CD34+ cells) to rebuild the immune system from scratch. The investigators hypothesize that this procedure will eliminate the "immunological memory" cells responsible for producing the problematic anti-HLA antibodies, resetting the immune system to a "naive" or inactive state. This immune reset is expected to eliminate or significantly lower circulating HLA antibodies, creating a critical window of opportunity for these patients to successfully receive a compatible kidney transplant from the deceased-donor wai…

This description comes directly from the study's public registry record.

Oriol Bestard, Nephrologist  ·  34932607400  ·  oriol.bestard@vallhebron.cat

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