Background:
* Carcinoembryonic antigen (CEA) and mucin-1 (MUC-1) are overexpressed in multiple adenocarcinomas.
* Pox viral vectors can induce a strong immune response to CEA and MUC-1.
* The use of agonist epitopes within the tumor associated antigen (TAA) can induce a better immune response than native peptides and have been associated with clinical responses
* Heterologous prime and boost regimens are superior in terms of generalizing immune responses; and this may translate into improved clinical responses
* The use of granulocyte-macrophage colony-stimulating factor (GM-CSF) does not add significant toxicity and in pre-clinical models is essential for induction for optimal immune responses.
* It is possible by using vectors directed against TAA that there may be additive or synergistic immune responses and this may be important in overcoming antigenic escape variance
* Evidence of clinical benefit has been noted in some patients treated with this vaccine
Objectives:
* For colorectal cancer and non-colorectal cancer Cohort: To evaluate the safety and tolerability of the vaccine.
* For the Ovarian Cancer and Breast Cancer Cohorts: To evaluate clinical response to the vaccine.
Eligibility:
* In the first cohort (colorectal and non-colorectal cancer), histologically confirmed adenocarcinoma that is CEA or MUC-1 positive described as metastatic disease (measurable or evaluable) or metastatic disease documented by biopsy but not evaluable by imaging (e.g. small volume peritoneal disease)
* For the ovarian and breast cancer cohorts, patients must have evaluable disease
* Normal organ function, Eastern Cooperative Oncology Group (ECOG) 0-1
Design:
* This is a non-randomized three cohort, pilot trial of pox viral vaccines that contain the transgenes for CEA and MUC-1 (both with modified human leukocyte antigen A2 (HLA-A2) agonist epitopes) as well as 3 human T-cell costimulatory molecules, B7-1, ICAM-1 (CD54), and LFA-3 (CD58) \[PANVAC(TM)-V (vaccinia) and PANVAC(TM)-F (fowlpox)\] in patients with metastatic carcinoma that express CEA or MUC-1 antigen.
* The first cohort will enroll 10 patients with metastatic colorectal adenocarcinoma and 10-15 patients with any metastatic non-colorectal carcinoma that expresses either CEA or MUC-1. .
* The second cohort will enroll 12 patients with metastatic breast carcinoma and 14 patients with metastatic ovarian carcinoma.
* All patients will receive the same vaccines on the same schedule. PANVAC(TM)-V (vaccinia) subcutaneously (s.c.) scheduled on day 1, followed by PANVAC(TM)-F (fowlpox) s.c. scheduled on days 15, 29, and 43 then every 28 days for up to 12 vaccines followed by every 3 months until disease progression or toxicity.
* Sargramostim (100 micro g) will be given at the site of the vaccination (PANVAC-V and PANVAC-F) on each vaccination day and for three consecutive days thereafter.
* Patients who have radiographic evidence of progressive disease, but who are otherwise clinically stable may revert back to monthly vaccinations.