Vaccine Therapy in Treating Patients Who Have Undergone a Donor Stem Cell Transplant and Have Cytomegalovirus Infection That Has Not Responded to Therapy
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.
Biological: cytomegalovirus pp65-specific cytotoxic T lymphocytes
Genetic: polymerase chain reaction
Other: diagnostic laboratory biomarker analysis
Other: flow cytometry
Other: immunologic technique
|Study Design:||Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Supportive Care
|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|
- Toxicity [ Time Frame: 1 year ]
- Treatment failure [ Time Frame: 1 year ]
- Safety [ Time Frame: 1 year ]
- Time to development of cytomegalovirus (CMV) specific immune reconstitution [ Time Frame: 1 year ]
- CMV DNA levels [ Time Frame: 1 year ]
- Time during post-infusion follow up at which the dominant CMV pp65 epitope for the donor is recognized by the cytotoxic t-cell lymphocyte recipient [ Time Frame: 1 year ]
|Study Start Date:||June 2007|
|Study Completion Date:||December 2011|
|Primary Completion Date:||December 2011 (Final data collection date for primary outcome measure)|
|Experimental: Single arm study||Biological: cytomegalovirus pp65-specific cytotoxic T lymphocytes Genetic: polymerase chain reaction Other: diagnostic laboratory biomarker analysis Other: flow cytometry Other: immunologic technique|
- 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.
- 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.
Please refer to this study by its ClinicalTrials.gov identifier: NCT00509691
|United States, Pennsylvania|
|Penn State Hershey Cancer Institute at Milton S. Hershey Medical Center|
|Hershey, Pennsylvania, United States, 17033-0850|
|Principal Investigator:||Kenneth G. Lucas, MD||Milton S. Hershey Medical Center|