Phase 3 Study of Tabelecleucel Treatment for Epstein-Barr Virus-Associated Post-Transplant Lymphoproliferative Disease After Rituximab or Chemotherapy Failure in Solid Organ or Stem Cell Transplant Patients

What this Trial Is About

Researchers are evaluating tabelecleucel, an off-the-shelf, allogeneic T-cell immunotherapy, for treating Epstein-Barr virus-associated post-transplant lymphoproliferative disease EBV PTLD after failure of rituximab or rituximab plus chemotherapy. This phase 3, multicenter, open-label study includes participants with EBV PTLD following solid organ transplant or allogeneic hematopoietic cell transplant. The study aims to determine the clinical benefit and safety profile of tabelecleucel in these patient groups. Participants receive intravenous tabelecleucel in 5-week cycles, with doses given on Days 1, 8, and 15, followed by observation through Day 35. Treatment continues until maximal response, unacceptable toxicity, initiation of other therapy, or tabelecleucel failure, with limits on the number of different HLA restrictions used. The study allows up to 5 years of follow-up for disease and survival status, with more frequent assessments for certain participants and responders. During the study, participants undergo regular assessments including imaging with PET-CT or MRI to measure disease response. Researchers monitor objective response rate, duration of response, overall survival, and rates of allograft loss or rejection. Safety and treatment effects are closely followed, and participants are observed for up to one year after initial response. The total study duration includes treatment cycles and extended follow-up to evaluate long-term outcomes.

A Phase 3 Study of Tabelecleucel for Participants With Epstein-Barr Virus-Associated Post-Transplant Lymphoproliferative Disease After Failure With Rituximab or Rituximab and Chemotherapy