This pilot phase II trial studies how well rituximab and latent membrane protein (LMP)-specific T-cells work in treating pediatric solid organ recipients with Epstein-Barr virus-positive, cluster of differentiation (CD)20-positive post-transplant lymphoproliferative disorder. Rituximab is a monoclonal antibody that may interfere with the ability of cancer cells to grow and spread. LMP-specific T-cells are special immune system cells trained to recognize proteins found on post-transplant lymphoproliferative disorder tumor cells if they are infected with Epstein-Barr virus. Giving rituximab and LMP-specific T-cells may work better in treating pediatric organ recipients with post-transplant lymphoproliferative disorder than rituximab alone.
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Percentage of Patients Assigned to Arm Latent Membrane Protein-specific T-cells (LMP-TC) With Successful LMP-specific T Cell Product Match, Were Treated Within Two Weeks of the Expected Start Date, and Received Both Weekly Doses
Timeframe: Day 8 of the first LMP-TC cycle (cycle = 42 days)