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About
This randomized phase II trial is studying how well giving vaccine therapy together with or without recombinant interleukin-12 followed by daclizumab works in treating patients with melanoma that has spread to other places in the body. Vaccines made from peptides or antigens may help the body build an effective immune response to kill tumor cells. Recombinant interleukin-12 may kill tumor cells by stopping blood flow to the tumor and by stimulating white blood cells to kill melanoma cells. Monoclonal antibodies, such as daclizumab, may decrease the number of regulatory T cells (T cells that suppress the activation of the immmune system) and may lead to a better immune response against melanoma. It is not yet known whether vaccine therapy is more effective with interleukin-12 and daclizumab in treating melanoma.
Full description
PRIMARY OBJECTIVES:
I. To determine if admixture of IL-12 (recombinant interleukin-12) with vaccine emulsion will increase the frequency of vaccine-induced cluster of differentiation (CD)8+ T cells in the blood.
II. To determine if administration of daclizumab will deplete CD4+CD25+ regulatory T cells from the peripheral and potentiate specific immune responses induced by vaccination.
III. To determine if vaccination +/- daclizumab will be safe in this patient population.
SECONDARY OBJECTIVES:
I. To determine if vaccination +/- daclizumab will have clinical activity in patients with advanced melanoma.
II. To determine if clinical response may be associated with particular gene expression profiles in the tumor microenvironment.
OUTLINE: Patients are randomized to 1 of 2 treatment arms.
ARM I: Patients receive multipeptide vaccination comprising recombinant MAGE-3.1 antigen, MART-1 antigen, gp100 antigen, and NA17-A2 peptide emulsified with Montanide ISA-51 intradermically (ID) or subcutaneously (SC) on days 1, 22, and 50.
ARM II: Patients receive vaccination as in arm I with an admixture of recombinant interleukin-12 (IL-12) on days 1, 22, and 50.
In both arms, patients are evaluated for immune response. Patients with partial response or stable disease may be immunized for up to a maximum of 1 year. Patients with complete response may be treated with 1 additional course of 3 vaccinations.
EXPANDED COHORT: Additional patients are accrued to the arm with higher immune response and receive daclizumab IV over 15 minutes on day -7. Patients then receive vaccination as in arm I or arm II on days 1, 22, and 50 in the absence of disease progression or unacceptable toxicity.
After completion of study therapy, patients are followed up every 8 weeks until disease progression and then at least every 3 months thereafter.
Enrollment
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Inclusion criteria
Patients must have histologically confirmed melanoma with evidence of metastatic disease either by radiologic or physical examination
Patients must have measurable disease
There are no limits on the number of prior therapies; patients must not have received a vaccine containing any of the melanoma antigen peptides, nor previously received daclizumab; at least 4 weeks must have passed since prior chemotherapy or radiation therapy (6 weeks for BCNU [carmustine] or mitomycin C)
Life expectancy greater than or equal to 12 weeks
Eastern Cooperative Oncology Group (ECOG) performance status 0-1 (Karnofsky ≥ 80%)
Leukocytes ≥ 3,000/mcL
Absolute neutrophil count (ANC) ≥ 1,500/mcL
Hemoglobin ≥ 9 g/dL
Platelets ≥ 100,000/mcL
Creatinine ≤ 1.5 x upper limit of normal (ULN)
Total bilirubin ≤ 1.5 x ULN
Aspartate aminotransferase (AST)(serum glutamic oxaloacetic transaminase [SGOT])/alanine aminotransferase (ALT)(serum glutamate pyruvate transaminase [SGPT]) ≤ 2 x institutional ULN
Lactate dehydrogenase (LDH) < 1.25 x ULN
Human leukocyte antigen (HLA) typing: patient must express HLA-A2, either by flow cytometry or by standard HLA typing
Patient must agree to undergo biopsy of accessible tumor before and after therapy, when feasible, to study tumor cell properties and characteristics of immune cells; if a biopsy cannot be done, then a prior pathologic specimen from the patient must show tumor cells that are positive for melanosome specific antigen (HMB45) and MLANA (MelanA); the tumor must express at least 2 antigens in the vaccine for the patient to be eligible
Women of child-bearing potential and men must agree to use adequate contraception (hormonal, barrier method of birth control, or abstinence) prior to study entry, for the duration of treatment, and for 2 months after completion of treatment; a pregnancy test must be done and be negative for women of child-bearing potential; should a woman become pregnant or suspect she is pregnant while participating in this study, she should inform her treating physician immediately
Ability to understand and the willingness to sign a written informed consent document
Exclusion criteria
Primary purpose
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10 participants in 2 patient groups
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Data sourced from clinicaltrials.gov
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