Lmp1 and Lmp2 Specific CTLs Following Cd45 Antibody for Relapsed Ebv-Positive Hodgkin's Or Non-Hodgkin's Lymphoma

Overview

The purpose of this study is to obtain blood (up to 90 ml or 18-teaspoonfuls on one or two occasions) to make LMP1- and LMP2-cytotoxic T-lymphocytes and grow them in the laboratory in such a way that they are able to attack LMP1- and LMP2-positive cells in the laboratory. If we are successful in growing these cells and if we feel they would be helpful to the donor, we would then give the cells back to the donor. This trial is for patients that have a type of lymph gland cancer called Hodgkin or non-Hodgkin lymphoma, or chronic active Epstein Barr virus (EBV) infection, which has come back or not gone away after treatment, including the best treatment we know. This is a research study using special immune system cells called LMP1- and LMP2-specific cytotoxic T lymphocytes (LMP1- and LMP2-CTLs), a new experimental therapy. As in chronic active EBV infection, some patients with Hodgkin or non-Hodgkin lymphoma show evidence of infection with the virus that causes infectious mononucleosis (EBV) before or at the time of their diagnosis of the Lymphoma. EBV is found in the cancer cells of up to half the patients with lymphoma, suggesting that it may play a role in causing lymphoma. The cancer cells infected by EBV are able to hide from the body's immune system and escape destruction. We want to see if special white blood cells, called T cells, that have been trained to kill EBV infected cells can survive in the patient's blood and affect EBV-positive cells. In this present study we are trying to find out if we can improve this treatment by growing T cells that only recognize two of the proteins expressed on lymphoma cells called LMP1 and LMP2. These special T cells are called LMP1- and LMP2-specific cytotoxic CTLs.

Infusions of CD45 MAbs A fixed dose of CD45 MAbs will be used determined from our previous and ongoing studies in stem cell transplant recipients will be used 40, 400ug/kg over 6 to 8 hrs daily x 4 given as daily intravenous infusions that will be completed 48-72 hours prior to CTL infusion. Patients will be premedicated prior to CD45 infusions and monitored as per the SOP for CD45 MAbs infusion. Day 1 through Day 4: YTH 24/54 400ug/kg over 6 to 8 hr; Day 5: Rest; Day 6, 7 or 8: CTL Infusion (provided CD45 Mab level \<100 ng/ml) Preparation of the Patient: Oxygen and suction equipment must be available in the room. Emergency drugs (Benadryl, Epinephrine, solucortef to solumedrol) in appropriate doses must be preordered by the physician prior to initiation of each infusion with doses available. A code card containing the appropriate doses of each medicine according to the patient's weight will also be available. Continuous telemetric monitoring by pulse oximeter and EKG will begin prior to and for 6 hours after each antibody infusion has taken place. Baseline vital signs are taken and recorded and monitored as per the SOP for antibody infusions. MAbs Infusion: The antibody aliquot to be infused will arrive in the treatment area hand-carried by the attending physician or appointed designate. The antibody aliquot will be diluted in minimal amounts of normal saline. The resulting solution is stable for 24 hours. The antibody solution is administered by a syringe pump in incremental doses, 0.2-0.8 mg in the first hour and up to 10 mg/hr thereafter, for a maximum infusion time of 8 hrs. A registered nurse and a physician must be readily available Antibody toxicity: Volume Overload: This is of particular importance in small recipients and will be monitored carefully. Inflammatory mediator release from damaged circulating white cells and allergic reactions: Fever, chills, rigors, pruritis, urticaria, nausea, vomiting, throat tightness and dyspnea may occur. These reactions usually respond to slowing or stopping the infusion and/or the parenteral administration of diphenhydramine, hydrocortisone, meperidine or anti-emetics. Administration of O2, epinephrine, bronchodilators or IPPB may be necessary. Adverse effects of CD45 MAbs on CTL Our experience to date has shown rapid clearance of CD45 MAbs from the plasma, such that levels are undetectable by 24-48hrs after infusion. However, the MAb levels will be measured before CTL infusion and if free plasma CD45 MAbs are present CTL infusion will be deferred for 24 hours CTL Infusion: Dose Levels of CTLs: The following dose levels will be evaluated: Each patient will receive 1 injection, according to the following dosing schedules: Dose level I: 2 x 10e7 cells/m2; Dose level II: 1 x 10e8 cells/m2; Dose level III: 3 x 10e8 cells/m2; Dose level IV: 1 x 10e9 cells/m2. Patients will be pre-medicated with Benadryl 1mg/kg IV (max 50mg) and Tylenol 10mg/kg po (max 650mg). Cell Administration: LMP1- and LMP2-specific T cells will be given by intravenous injection over 1-10 minutes through either a peripheral or a central line.