Analysis of Dendritic Phenotype and Function of Patients Receiving VEGF-Trap on VGFT-ST-0202

Vanderbilt University Medical Center

Status: Completed

Conditions: Solid Tumor; Lymphoma

Treatments: Other: pharmacological study; Other: immunologic technique; Other: laboratory biomarker analysis

Study type: Observational

Funder types: Other; NIH

Identifiers

NCT00896662

VICC PHI 0433

VU-VICC-PHI-0433

VU-IRB-040852

Details and patient eligibility

About

RATIONALE: Studying the dendritic cells in samples of blood from patients with cancer receiving aflibercept may help doctors learn about the effect of aflibercept on dendritic cells.

PURPOSE: This laboratory study is evaluating dendritic cells in patients with advanced solid tumors or non-Hodgkin lymphoma receiving aflibercept on clinical trial VGFT-ST-0202.

Full description

OBJECTIVES:

• Evaluate the effect of in vivo aflibercept on the presence of different populations of dendritic cells (DC) and immature cells (ImC) in the peripheral blood of cancer patients by characterizing the time course (kinetics) of the improvement in antigen presenting cell (APC) phenotype (decline in DC/ImC ratio) occurring early and late after aflibercept administration.
• Evaluate the effect of aflibercept administration on DC function based on ability to stimulate antigen specific proliferative (allogeneic and tetanus toxoid) and cytolytic T cell responses (influenza) by characterizing the time course (kinetics) of the improvement in APC function occurring early and late after aflibercept administration.
• Explore the relationship of baseline aflibercept level and host APC phenotype.

OUTLINE: This is a multicenter study.

Patients undergo phlebotomy and blood collection at baseline and on days 15, 29, and 57. Samples are analyzed for dendritic cell phenotype, subpopulations, maturation status, and function in terms of ability to activate autologous T cells.

Enrollment: 9 patients

Sex: All

Ages: 18+ years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Diagnosis of advanced solid tumor or non-Hodgkin lymphoma and enrolled on clinical trial VGFT-ST-0202
• Hemoglobin ≥ 10 g/dL
• Willing to undergo phlebotomy

Exclusion criteria

• none listed

PRIOR CONCURRENT THERAPY:

• See Disease Characteristics