A Phase I Study Using Vaccination With NY-ESO-1 Recombinant Protein Mixed With CpG 7909 and Montanide ISA-51 VG in Patients With Cancers That Often Express NY-ESO-1.

Detailed Summary

This is a Phase I, open-label, randomized study of NY-ESO-l protein with immune adjuvants CpG 7909 and Montanide ISA-51 VG in patients with tumors that often express NY-ESO-1. The vaccinations was to be administered subcutaneously every 3 weeks for 4 doses. Patients with any malignancy that is known to frequently express NY-ESO-1 were eligible, regardless of whether antigen expression in the autologous tumor could be demonstrated or not by either PCR or immunohistochemistry. The primary objective of the study was to define safety. Secondarily, the study was to evaluate whether patients developed a specific immunologic response to the NY-ESO-1 protein. Blood samples were to be obtained at baseline, prior to each vaccination, one week after each vaccination, and at the last study visit for the assessment of NY-ESO-1-specific CD4+ and CD8+ T cells. Cytokine secretion by NY-ESO-1-specific CD8+ and CD4+ T cells, as a measure of T cell activation, was to be determined by FACS analysis. In addition, humoral immunity was to be determined by the presence of NY-ESO-1-specific antibodies which were to be assessed in all patients by ELISA. Disease status was to be assessed at baseline and 2-4 weeks after the fourth vaccination in patients with evaluable (measurable and non-measurable) disease.

Study Details

Timeline

Interventions