RATIONALE: White blood cells that have been treated in the laboratory may kill cells that are infected with cytomegalovirus. PURPOSE: This phase I trial is studying how well cytotoxic T cells work in treating patients who have undergone donor stem cell transplant and have cytomegalovirus infections.
OBJECTIVES: Primary * To provide access to cytomegalovirus (CMV) pp65- and IE-1-specific cytotoxic T lymphocytes (CTL) in patients with persistent CMV infections after allogeneic stem cell transplantation. Secondary * To characterize CMV pp65- and IE-1-specific immune responses in terms of cytotoxicity and cytokine production pre-infusion and then periodically thereafter. * To characterize the levels of CMV DNA in recipients of CMV pp65- and IE-1-specific CTL and observe whether the CTL infusion has any impact on level of virus. * To determine the feasibility of CMV CTL culture from CMV-seronegative donors who have received a CMV vaccine. OUTLINE: This is a multicenter study. Patients receive allogeneic cytomegalovirus (CMV) pp65- and IE-1-specific cytotoxic T-cell lymphocytes infusion over 5 minutes on day 1. Patients may receive up to 2 more doses at least 2 weeks after previous dose. Blood samples are collected and analyzed by quantitative CMV PCR, chromium-release assays for CMV pp65- and IE-1-specific cytotoxicity, and immunophenotype for CD3, CD4, CD8, CD56, CD19, and CD45RA/RO. Intracellular cytofluorometry is used to assess IL-2, IL-4, IL-10, and IFN-γ production by CD4 and CD8 CMV-specific effector cells. After completion of study therapy, patients are followed periodically for up to 1 year.
Study Type
INTERVENTIONAL
Purpose
SUPPORTIVE_CARE
Masking
NONE
Enrollment
20
Penn State Cancer Institute at Milton S. Hershey Medical Center
Hershey, Pennsylvania, United States
Safety
Toxicity
Time to development of cytomegalovirus (CMV)-specific immune reconstitution
CMV DNA levels
Time during post-infusion follow-up at which the dominant CMV pp65- and IE-1 epitopes for the donor is recognized by the cytotoxic T-cell lymphocytes (CTL)
Feasibility of CMV pp65- and IE-1 CTL culture after CMV vaccination of seronegative donors
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