Immunization With gp100 Protein Vaccine in Treating Patients With Metastatic Melanoma

Melanoma (Skin) Clinical Trial

Official title: Immunization Of Patients With Metastatic Melanoma Using A Recombinant GP100 Protein (184V) And A Class I Restricted Peptide From The GP100 Antigen

Status Completed

Clinical Trial Summary

RATIONALE: Vaccines may make the body build an immune response to kill tumor cells.

PURPOSE: This randomized phase II trial is studying immunization using two different gp100 protein vaccines to compare how well they work in treating patients with metastatic melanoma.

Clinical Trial Description

OBJECTIVES:

Primary

• Compare the clinical response in patients with metastatic melanoma immunized with recombinant gp100 protein (184V) emulsified in Montanide ISA-51 with or without gp100:209-217 (210M) peptide.

Secondary

• Compare the toxicity profile of these immunizations in these patients.

OUTLINE: This is a randomized study. Patients are assigned to 1 of 2 cohorts according to HLA-A2*0201 status. Patients assigned to cohort 1 are then randomized to 1 of 2 treatment arms.

• Cohort 1 (HLA-A2*0201-positive patients): Patients are randomized to 1 of 2 treatment arms.

• Arm I: Patients receive immunization comprising recombinant gp100 protein (184V) emulsified in Montanide ISA-51 subcutaneously (SC) on days 1, 22, 43, and 64 (1 course).

• Arm II: Patients receive immunization comprising recombinant gp100 protein (184V) and gp100:209-217 (210M) peptide emulsified in Montanide ISA-51 SC on days 1, 22, 43, and 64 (1 course).

• Cohort 2 (HLA-A2*0201-negative patients): Patients receive immunization as in cohort 1, arm I.

In both cohorts, treatment continues in the absence of rapid disease progression or unacceptable toxicity.

In both cohorts, patients are evaluated 3-4 weeks after the fourth immunization. Patients achieving stable disease or a partial response receive retreatment according to their assigned cohort. Patients with progressive disease who are eligible for interleukin-2 (IL-2) receive retreatment according to their assigned cohort AND high-dose IL-2 IV over 15 minutes 3 times daily on days 2-5, 23-26, 44-47, and 65-68 (1 course). Patients receive up to 3 retreatment courses. Patients achieving a complete response (CR) receive 1 retreatment course beyond CR. Patients with progressive disease who are ineligible for IL-2 administration are removed from the study.

PROJECTED ACCRUAL: A total of 45-75 patients (30-50 for cohort 1 [15-25 per treatment arm] and 15-25 for cohort 2) will be accrued for this study within 3 years. ;

Study Design

Allocation: Randomized, Primary Purpose: Treatment

Related Conditions & MeSH terms

• Melanoma
• Melanoma (Skin)

• NCT number: NCT00072085
• Study type: Interventional
• Source: National Cancer Institute (NCI)
• Status: Completed
• Phase: Phase 2
• Start date: September 2003
• Completion date: July 2006