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This study evaluated Trastuzumab, cyclophosphamide, and a GM-CSF-secreting breast cancer vaccine together in patients with high-risk or metastatic breast cancer. It was open to patients with histologically confirmed, HER2/neu-overexpressing breast adenocarcinoma. Run by Johns Hopkins' Sidney Kimmel Comprehensive Cancer Center, the study was conducted in Phase 2 and has been completed.
The summary above is a plain-language rendering of the official record. The original English title is shown for reference.
Criteria are reproduced from the ClinicalTrials.gov record in the original English. Only the trial team can determine eligibility.
DISEASE CHARACTERISTICS:
* Histologically confirmed adenocarcinoma of the breast, meeting one of the following criteria:
* Metastatic disease
* High-risk disease, defined as early-stage disease with pathologic involvement of locoregional lymph nodes
* Patients who are/will be receiving standard adjuvant trastuzumab \[Herceptin®\] for high-risk disease will participate in this study during the single-agent trastuzumab portion of their therapy
* No clinical or radiographical evidence of active disease
* Not eligible for therapy of known curative potential for metastatic breast cancer
* HER2/neu-overexpressing disease, defined as HER2/neu positive by IHC 3+ staining or by FISH+ amplification
* Stable CNS disease allowed provided it has been adequately treated and is not under active treatment
* Hormone receptor status not specified
PATIENT CHARACTERISTICS:
* Menopausal status not specified
* ECOG performance status 0-1
* ANC \> 1,000/mm\^3
* Platelet count \> 100,000/mm\^3
* Serum creatinine \< 2.0 mg/dL
* Serum bilirubin ≤ 2.0 mg/dL (unless elevation is due to known Gilbert's syndrome)
* AST/ALT ≤ 2 times upper limit of normal (ULN)
* Alkaline phosphatase ≤ 5 times ULN
* Not pregnant or nursing
* Negative pregnancy test
* Fertile patients must use effective contraception
* Cardiac ejection fraction normal by MUGA OR ≥ 45% by ECHO
* No other malignancies within the past 5 years, except for carcinoma in situ of the cervix, superficial nonmelanoma skin cancer, or superficial bladder cancer
* No prior or currently active autoimmune disease\* requiring management with systemic immunosuppression, including any of the following:
* Inflammatory bowel disease
* Systemic vasculitis
* Scleroderma
* Psoriasis
* Multiple sclerosis
* Hemolytic anemia or immune-mediated thrombocytopenia
* Rheumatoid arthritis
* Systemic lupus erythematosus
* Sjögren syndrome
* Sarcoidosis
* Other rheumatologic disease
* No symptomatic intrinsic lung disease or extensive tumor involvement of the lungs resulting in dyspnea at rest
* HIV-negative
* No evidence of active acute or chronic infection
* No uncontrolled medical problems
* No active major medical or psychosocial problems that could be complicated by study participation
* No corn allergy
* No known severe hypersensitivity to trastuzumab (except for mild to moderate infusion reactions that are easily managed and do not recur) NOTE: \*Asthma or chronic obstructive pulmonary disease that does not require daily systemic corticosteroids allowed
PRIOR CONCURRENT THERAPY:
* Any number of prior chemotherapy regimens for metastatic breast cancer allowed
* Prior or concurrent trastuzumab in the adjuvant or metastatic setting allowed
* More than 28 days since prior and no concurrent systemic oral steroids
* Topical, ocular, or nasal steroids allowed
* More than 28 days since prior and no concurrent chemotherapy, radiotherapy, or biologic therapy (except trastuzumab)
* More than 28 days since prior and no concurrent participation in another investigational clinical trial involving a new drug
* Concurrent endocrine therapy or bisphosphonates allowed