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Clinical Trial Summary

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.


Clinical Trial Description

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 Design

Masking: Open Label, Primary Purpose: Supportive Care


Related Conditions & MeSH terms


NCT number NCT00769613
Study type Interventional
Source National Cancer Institute (NCI)
Contact
Status Active, not recruiting
Phase Phase 1
Start date August 2008

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