A Phase 1 interventional study of multi-CMV epitope modified vaccinia Ankara vaccine and laboratory biomarker analysis in Cytomegalovirus Infection and Healthy, no Evidence of Disease, sponsored by City of Hope Medical Center. Completed at 1 site in United States. Open to participants aged 18 Years to 60 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2017-08-02.
Sponsored by City of Hope Medical Center · Phase 1, Interventional, and Supportive care
This phase I trial studies the side effects and the best dose of vaccine therapy in healthy volunteers with or without previous exposure to cytomegalovirus. Vaccines made from a gene-modified virus may help the body build an immune response and may help prevent cytomegalovirus infection.
PRIMARY OBJECTIVES:
I. To establish a biological optimal dose of the cytomegalovirus (CMV)-modified vaccinia Ankara (MVA) Triplex vaccine (multi-CMV epitope modified vaccinia Ankara vaccine).
II. To determine if the vaccine is safe and well tolerated in healthy volunteers at these doses.
SECONDARY OBJECTIVES:
I. To provide preliminary evidence of CMV-MVA Triplex vaccine driven expansion of CMV-specific immune responses that would support further evaluation of this vaccine in hematopoietic cell transplantation (HCT) recipients.
II. To confer CMV-specific immunity to CMV-negative volunteers and to determine the duration of immune enhancement of CMV-specific cell mediated immunity (CMI) function up to 12 months following immunization of healthy volunteers.
OUTLINE: This is a dose-escalation study.
Participants receive multi-CMV epitope modified vaccinia Ankara vaccine intramuscularly (IM) followed by a booster injection 28 days later in the absence of unacceptable toxicity.
After completion of study treatment, participants are followed up for 12 months.
359 studies on the registry are indexed under Cytomegalovirus Infections; 59 are open to participants now.
This study's enrollment of 24 is below the median of 60 across 233 interventional studies indexed under Cytomegalovirus Infections.
Browse Cytomegalovirus Infections studies →City of Hope Medical Center is the lead sponsor of 670 studies on the registry; 181 are open to participants now.
Of its 30 completed or terminated interventional studies of FDA-regulated products, 12 (40%) have results posted.
Counted across the registry records on this site, refreshed daily.
SECONDARY ELIGIBILITY CRITERIA:
Exclusion Criteria:
Any of the following cardiac findings of ECG abnormality:
Participants receive multi-CMV epitope modified vaccinia Ankara vaccine IM followed by a booster injection 28 days later in the absence of unacceptable toxicity.
Biological: multi-CMV epitope modified vaccinia Ankara vaccine · Other: laboratory biomarker analysis
Given IM
Also known as: CMV-MVA triplex vaccine
Correlative studies
Successful completion of 2 injections without dose-limiting toxicity (DLT) according to the Division of Microbiology and Infectious Diseases (DMID) adult toxicity tables
Time frame: Up to 28 days
Evidence of CMV-MVA Triplex vaccine driven expansion of CMV-specific immune responses to support further evaluation of this vaccine in HCT recipients.
Expansion of CMV-specific T-cells in peripheral blood mononuclear cell (PBMC)will be evaluated by flow cytometry, immunocytochemistry (ICC) assays, and enzyme-linked immunosorbent spot (ELISPOT)
Time frame: Up to 1 year
Frequency of polyfunctional cluster of differentiation (CD)4+ and CD8+ T cells recognizing CMV Ag, expressed as concentrations
A one-sample signed-rank test will be used to compare pre- and post-vaccination CD4+ and CD8+ T cell levels. A secondary analysis will model cell concentrations as a function of time, dose, and CMV serostatus. Mixed models and generalized estimating equations will be used to permit quantitative estimation and flexible investigation of potentially interacting covariables.
Time frame: Up to 1 year
This study is completed, as verified in Jul 2017. You cannot join it, but the record below documents what was studied.
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City of Hope Medical Center