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Vaccine Therapy in Treating Patients Who Have Undergone a Donor Stem Cell Transplant and Have Cytomegalovirus Infection That Has Not Responded to Therapy

Cancer Clinical Trial

Official title:
A Phase I Trial to Examine the Safety, Clinical, Immunologic and Virologic Effects of CMV pp65 Specific Cytotoxic T Lymphocytes for Recipients of Allogeneic Stem Cell Transplants With Persistent or Therapy Refractory Infections

Clinical Trial Summary

RATIONALE: Vaccines may help the body build an effective immune response to kill cytomegalovirus infections.

PURPOSE: This phase I trial is studying the side effects and best dose of vaccine therapy in treating patients who have undergone a donor stem cell transplant and have cytomegalovirus infection that has not responded to therapy.

Clinical Trial Description

OBJECTIVES:

Primary

- To determine the safety of infusing cytomegalovirus (CMV) pp65-specific cytotoxic T-lymphocytes (CTL) generated using pp65 peptides in patients who have undergone allogeneic stem cell transplantation and have persistent CMV infections.

Secondary

- Characterize CMV pp65-specific immune responses in terms of cytotoxicity and cytokine production pre-infusion and then periodically thereafter.

- Characterize the levels of CMV DNA in recipients of CMV pp65 CTL and observe whether the CTL infusion has any impact on the level of virus.

OUTLINE: This is a multicenter study.

Patients receive cytomegalovirus (CMV) pp65 cytotoxic T-cell infusion 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-specific cytotoxicity, and immunophenotype for CD3, CD4, CD8, CD56, CD19, and CD45 RA/RD. 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 treatment, patients are followed periodically for up to 1 year. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT00509691
Study type Interventional
Source University of Louisville
Contact
Status Completed
Phase Phase 1
Start date June 2007
Completion date December 2011
View Details
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