Vaccine Therapy in Treating Patients With Advanced Melanoma

OBJECTIVES:

- To assess the circulating CD8 T-cell response to vaccination with a multipeptide
vaccine in patients with advanced melanoma.

- To determine whether immunization with peptides and incomplete Freund's adjuvant
induces lymph-node-like aggregates (LNLA) and tertiary lymphoid organs (TLOs) in the
skin of these patients.

- To determine whether extended immunization (vaccinations 4-6) is associated with
induction of negative immune-regulatory processes in the vaccination site
microenvironment/TLO.

- To characterize peptide-reactive CD4 and CD8 T cells in loco at sites of immunization
with a multipeptide vaccine.

- To characterize the expression of toll-like receptors 4, 7, 8, and 9, and MyD88 in
dendritic cells infiltrating vaccination sites over the course of 6 vaccinations and
after vaccination.

OUTLINE: Patients are randomized to 1 of 10 arms.

All patients receive primary vaccine comprising melanoma multipeptides and tetanus toxoid
helper peptide emulsified in incomplete Freund's adjuvant, half of the volume subcutaneously
(SC) and the other half intradermally (ID), 6 times over 7 weeks on days 1, 8, 15, 29, 36,
and 43. Vaccines are administered in a single skin location on an extremity clinically
uninvolved with melanoma. A replicate vaccine site is identified for each patient for skin
biopsy with or with out replica vaccine administration.

- Arm 1A: Patients receive no replicate vaccine. Patients undergo surgical biopsy at
replicate vaccine site on day 1.

- Arm 1B: Patients receive replicate vaccine comprising incomplete Freund's adjuvant only
SC and ID on day 1 and undergo surgical biopsy at replicate vaccine site on day 8 (1
week after replicate vaccine 1).

- Arm 1C: Patients receive replicate vaccine comprising incomplete Freund's adjuvant only
SC and ID on days 1, 8, and 15 and undergo surgical biopsy at replicate vaccine site on
day 22 (1 week after replicate vaccine 3).

- Arm 1D: Patients receive replicate vaccine comprising incomplete Freund's adjuvant only
SC and ID on days 1, 8, 15, 29, 36, and 43 and undergo surgical biopsy at replicate
vaccine site on day 50 (1 week after replicate vaccine 6). Patients are evaluated 1-3
weeks after biopsy.

- Arm 1E: Patients receive replicate vaccine comprising incomplete Freund's adjuvant only
SC and ID on days 1, 8, 15, 29, 36, and 43 and undergo surgical biopsy at replicate
vaccine site on day 85 (6 week after replicate vaccine 6). Patients are evaluated 1-3
weeks after biopsy.

- Arm 2A: Patients receive no replicate vaccine. Patients undergo surgical biopsy at
replicate vaccine site on day 1.

- Arm 2B: Patients receive replicate vaccine (the same as primary vaccine) SC and ID on
day 1 and undergo surgical biopsy at replicate vaccine site on day 8 (1 week after
replicate vaccine 1).

- Arm 2C: Patients receive replicate vaccine (the same as primary vaccine) SC and ID on
days 1, 8, and 15 and undergo surgical biopsy at replicate vaccine site on day 22 (1
week after replicate vaccine 3).

- Arm 2D: Patients receive replicate vaccine (the same as primary vaccine) SC and ID on
days 1, 8, 15, 29, 36, and 43 and undergo surgical biopsy at replicate vaccine site on
day 50 (1 week after replicate vaccine 6). Patients are evaluated 1-3 weeks after
biopsy.

- Arm 2E: Patients receive replicate vaccine (the same as primary vaccine) SC and ID on
days 1, 8, 15, 29, 36, and 43 and undergo surgical biopsy at replicate vaccine site on
day 85 (1 week after replicate vaccine 6). Patients are evaluated 1-3 weeks after
biopsy.

Tissue biopsies are examined by reverse transcriptase-PCR, IHC, protein analysis, flow
cytometry, and western blot. Blood samples are collected periodically and examined by
ELIspot assay, tetramer staining, and proliferation assay.

After completion of study therapy, patients are followed annually.

DISEASE CHARACTERISTICS:

- Histologically or cytologically confirmed melanoma that meets one of the following
criteria:

- Stage IIB-IV melanoma rendered clinically free of disease by surgery, other
therapy, or spontaneous remission within the past 6 months

- Stage III or IV melanoma with disease

- Persistent or metastatic disease allowed if RECIST criteria for measurable disease is
not met

- Multiple primary melanomas allowed

- Prior or concurrent metastasis from a cutaneous, mucosal, ocular, or unknown primary
site allowed

- No clinically detectable melanoma deemed likely by the investigator to require
intervention during the first 12 weeks of the study that would require premature
discontinuation (e.g., untreated bone metastases at risk for fracture or rapidly
progressive low-volume disease)

- Brain metastases allowed if all of the following criteria are met:

- The total number of brain metastases ever is ≤ 3

- The brain metastases have been completely removed by surgery or have been
treated completely by stereotactic radiotherapy

- There has been no evident growth of any brain metastasis since treatment

- No treated brain metastasis > 2 cm in diameter

- At least two intact axillary and/or inguinal lymph node basins

- Prior lymph node biopsy allowed if lymphoscintigraphy demonstrates intact drainage to
a node in that basin

- If a sentinal lymph node is not located by lymphoscintigraphy, patient is not
eligible for study

- HLA-A1, -A2, -A3, or -A11 positive

- Either eligible for, but refused interferon therapy OR not a candidate for interferon
therapy for the following reasons:

- Active ischemic heart disease or cerebrovascular disease

- Anginal syndrome requiring ongoing medications or history of myocardial
infarction or arrhythmia disorder

- History of treatment for depression, active depression, or other psychiatric
disorder

- Autoimmune disorders

- Hypersensitivity to interferon-alfa or any component associated with interferon
therapy

- Debilitating medical conditions such as severe pulmonary disease or severe
diabetes mellitus

- Thyroid abnormalities, where thyroid function cannot be maintained in the normal
range without medication

- Resected stage IV melanoma

- Discontinued interferon therapy due to the occurrence of a major toxicity that
has been documented by the treating physician

- Experienced tumor progression while on interferon or after completing interferon
therapy

- Missed the standard-of-care enrollment window for interferon therapy initiation

PATIENT CHARACTERISTICS:

- ECOG performance status 0-1

- ANC > 1,000/mm^3

- Platelets > 100,000/mm^3

- Hemoglobin > 9 g/dL

- AST and ALT ≤ 2.5 times upper limit of normal (ULN)

- Bilirubin ≤ 2.5 times ULN

- Alkaline phosphatase ≤ 2.5 times ULN

- Creatinine ≤ 1.5 times ULN

- Hepatitis C and HIV negative (antibody screening)

- Hemoglobin_A1C level < 7%

- Body weight ≥ 110 pounds

- Not pregnant or nursing

- Negative pregnancy test

- Fertile patients must use effective contraception during study treatment

- No New York Heart Association class III-IV heart disease

- No known or suspected allergies to any component of the vaccine

- No medical contraindication or potential problem in complying with the requirements
of the protocol

PRIOR CONCURRENT THERAPY:

- See Disease Characteristics

- Prior peptide vaccines (including MELITAC 12.1 and similar vaccines) or non-peptide
vaccines allowed

- At least 1 week since prior stereotactic radiotherapy, such as gamma knife

- No influenza vaccine ≥ 2 weeks before, during, and ≥ 2 weeks after completion of
study therapy

- More than 4 weeks since prior and no concurrent use of any of the following:

- Systemic cytotoxic chemotherapy (6 weeks for nitrosoureas)

- Radiotherapy

- Other experimental therapy

- Agents with putative immunomodulating activity (with the exception of
non-steroidal anti-inflammatory agents and topical steroids)

- Allergy desensitization injections

- Systemic corticosteroids, administered parenterally or orally

- Inhaled steroids (e.g., fluticasone propionate [Advair® or Flovent®] or
triamcinolone acetonide [Azmacort®])

- Topical corticosteroids and steroids with very low solubility administered
nasally for local effects only allowed (e.g., mometasone furoate
[Nasonex®])

- Growth factors (e.g., sargramostim [GM-CSF], filgrastim [G-CSF], or epoetin
alfa)

- Interferon therapy

- Aldesleukin or other interleukins

- Street drugs

- At least 1 month since prior and no other concurrent investigational drugs or therapy

- At least 12 weeks since prior melanoma vaccine for patients who have recurred or
progressed either after or during treatment with vaccine