Biomarkers in Blood Samples From Patients With Stage IV Melanoma Previously Treated With Sargramostim
RATIONALE: Studying samples of blood from patients treated with sargramostim in the laboratory may help doctors learn more about the effects of sargramostim on cells. It may also help doctors understand how patients respond to treatment.
PURPOSE: This research trial studies biomarkers in blood samples from patients with stage IV melanoma previously treated with sargramostim.
|Melanoma (Skin)||Other: flow cytometry Other: immunologic technique Other: laboratory biomarker analysis|
|Study Design:||Observational Model: Other
Time Perspective: Retrospective
|Official Title:||Immune Counter-Regulation in Melanoma Patients Vaccinated With GM-CSF|
- Overall and disease-free survival [ Time Frame: 1 year ]
|Actual Study Start Date:||June 28, 2011|
|Study Completion Date:||September 28, 2011|
|Primary Completion Date:||September 28, 2011 (Final data collection date for primary outcome measure)|
- To correlate circulating myeloid-derived suppressor cells (MDSC) and Treg frequencies with clinical outcome.
- To correlate circulating anti-sargramostim (GM-CSF) antibody levels with clinical outcome.
OUTLINE: Archived peripheral blood mononuclear cells and serum samples are analyzed for circulating myeloid-derived suppressor cells, Treg (CD3+/CD4+/CD25hi/FOXP3+) frequency, and anti-sargramostim (anti-GM-CSF) antibody levels by flow cytometry and anti-GM-CSF neutralizing antibody assay.
Please refer to this study by its ClinicalTrials.gov identifier: NCT01388569
|Principal Investigator:||Lisa Butterfield, PhD||University of Pittsburgh|