Vaccine Therapy With or Without Interleukin-2 in Treating Patients With Locally Advanced or Metastatic Colorectal Cancer
RATIONALE: Vaccines may make the body build an immune response that will kill cancer cells. Combining vaccine therapy with interleukin-2 may kill more cancer cells.
PURPOSE: Phase I/II trial to study the effectiveness of vaccine therapy with or without interleukin-2 in treating patients who have locally advanced or metastatic colorectal cancer.
Biological: ras peptide cancer vaccine
Procedure: adjuvant therapy
|Study Design:||Primary Purpose: Treatment|
|Official Title:||A Phase I/II Trial of Vaccination With Mutant Ras Peptide-Pulsed Dendritic Cells in the Treatment of HLA A2.1 Positive Patients With Colorectal Cancer|
- Response rate every 3 months for up to a year after completion of study treatment [ Designated as safety issue: No ]
|Study Start Date:||March 1999|
|Study Completion Date:||November 2005|
- Determine the frequency of immunologic response in patients with locally advanced or metastatic colorectal cancer treated with ras peptide-pulsed dendritic cell vaccine with or without interleukin-2.
- Determine the tumor response and survival time in patients with metastatic colorectal cancer treated with vaccine plus interleukin-2.
- Determine the time to progression in patients with locally advanced colorectal cancer treated with adjuvant vaccine.
OUTLINE: Patients are assigned to 1 of 2 treatment groups according to extent of disease. Patients with prior locally advanced disease are assigned to treatment group A, while those with metastatic disease are assigned to treatment group B.
- Group A: Patients are vaccinated against influenza on day -6. Patients undergo collection of peripheral blood mononuclear cells (PBMC) on day -4. The PBMC are cultured with sargramostim (GM-CSF) and interleukin-4 for 5 days and CD40 ligand for 24 hours and then pulsed for 2 hours with the appropriate peptide to form a vaccine. Patients receive ras peptide-pulsed dendritic cell vaccine IV over 5 minutes on days 1, 15, 29, 43, and 57.
- Group B: Patients undergo collection of PBMC and receive vaccination as in group A. Patients also receive interleukin-2 subcutaneously on days 2-6 and 9-13.
Treatment in both groups repeats every 2 weeks for up to 5 vaccinations in the absence of disease progression or unacceptable toxicity.
Patients are followed on days 75, 90, 120, and 365.
PROJECTED ACCRUAL: A total of 500 patients will be accrued for this study within 3 years.
|United States, Maryland|
|Warren Grant Magnuson Clinical Center - NCI Clinical Studies Support|
|Bethesda, Maryland, United States, 20892-1182|
|United States, Tennessee|
|Vanderbilt-Ingram Cancer Center|
|Nashville, Tennessee, United States, 37232-6838|
|Study Chair:||John E. Janik, MD||NCI - Metabolism Branch;MET|