Vaccine Therapy in Treating Patients With Previously Treated Stage II or Stage III Breast Cancer

Early Phase 1

Completed

• Conditions: Breast Cancer

• Registration Number: NCT00640861
• Lead Sponsor: Mayo Clinic

Brief Summary

RATIONALE: Vaccines made from peptides may help the body build an effective immune response to kill tumor cells. It is not yet known which vaccine is most effective in treating breast cancer.

PURPOSE: This randomized clinical trial is studying the side effects of three different vaccine therapies and comparing the vaccines to see how well they work in treating patients with previously treated stage II or stage III breast cancer.

Detailed Description

OBJECTIVES:

Primary

* To determine the safety and immunization efficacy of MUC1 and HER-2/neu peptide vaccines combined with CpG oligodeoxynucleotide, sargramostim (GM-CSF), or both, as immune adjuvants suspended in Freund's incomplete adjuvant in patients with previously treated stage II or III adenocarcinoma of the breast.

Secondary

* To describe the impact of immunization on clinical outcomes in patients with MUC1-positive breast cancer in terms of disease-free survival and overall survival.

OUTLINE: Patients are stratified according to Her-2/neu status (positive vs negative). Patients are randomized to 1 of 3 treatment arms.

* Arm A: Patients receive a vaccine comprising incomplete Freund's adjuvant, MUC1 antigen vaccine, two Her-2/neu peptide-based vaccines, and sargramostim (GM-CSF) subcutaneously (SC) on day 1.

* Arm B: Patients receive a vaccine comprising incomplete Freund's adjuvant, MUC1 antigen vaccine, two Her-2/neu peptide-based vaccines (one of them different than in arm A), and CpG oligodeoxynucleotide SC on day 1.

* Arm C: Patients receive a vaccine comprising incomplete Freund's adjuvant, MUC1 antigen vaccine, two Her-2/neu peptide-based vaccines (one of them different than in arm A; the same as in arm B), GM-CSF, and CpG oligodeoxynucleotide SC on day 1.

In all arms, treatment repeats every 4 weeks for 6 courses in the absence of disease progression or unacceptable toxicity. Patients who complete 6 courses of treatment without disease recurrence or a second primary or intolerable toxicity will go to the observation phase of the study for up to 2 years. Patients who develop recurrent disease during the observational phase will go to the event monitoring phase for up to 2 years.

Blood samples are collected periodically. Blood samples and tissue samples from the patient's most recent surgery are used for correlative studies including immune responses to T helper and CTL epitopes by Elispot and tetramer analysis; and antigenic profiling by expression analysis of class I HLA antigens, MUC1, and HER-2 in tumor tissue.

After completion of study treatment, patients are followed periodically until disease recurrence or for up to 2 years.

Basic Information
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Recruitment & Eligibility
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Study & Design
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Trial Locations

Study Timeline

• Study First Submitted: 2008-03-20
• Study First Submitted QC: 2008-03-20
• Study First Posted: 2008-03-21
• Study Start: 2008-08-28
• Primary Completion: 2015-04-21
• Study Completion: 2015-04-21
• Status Verified: 2018-10
• Last Update Submitted: 2018-10-29
• Last Update Posted: 2018-10-31

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 45

Inclusion Criteria

Not provided

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Exclusion Criteria

Not provided

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Study & Design

• Study Type: INTERVENTIONAL
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
Number and severity of hematologic and non-hematologic toxicities reported using the NCI-CTC version 3.0 criteria
Percentage of CD4+ T cells, CD8+ T cells, B cells, monocytes, and dendritic cells in a patient's peripheral blood sample as estimated by flow cytometry with a panel of monoclonal antibodies
Frequency of peptide-specific IFN-gamma producing T cells and peptide-specific IL-5 producing T cells estimated by ELISPOT after in vitro stimulation with peptide-sensitized stimulator cells for MUC1 and HER-2 peptides

Secondary Outcome Measures

Name	Time	Method
Overall survival, defined as the time from registration to death due to any cause
Disease-free survival, defined as the time from registration to the documentation of a first failure where a failure is the recurrence of breast cancer or a diagnosis of a second primary cancer

Trial Locations

Locations (3)

Mayo Clinic in Arizona; 🇺🇸 Scottsdale, Arizona, United States

Mayo Clinic in Florida; 🇺🇸 Jacksonville, Florida, United States

Mayo Clinic; 🇺🇸 Rochester, Minnesota, United States