A Safety and Immunology Study of a Modified Vaccinia Vaccine for HER-2(+) Metastatic Breast Cancer
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|ClinicalTrials.gov Identifier: NCT00485277|
Recruitment Status : Completed
First Posted : June 12, 2007
Last Update Posted : January 26, 2012
The current trial, BNIT-BR-002, will evaluate the safety and biological activity of a fixed dose of MVA-BN®-HER2, with and without Herceptin, following 1st- or 2nd-line chemotherapy in patients with Her-2-positive metastatic breast cancer.
The intent of vaccination is to induce anti-Her-2 immune responses, both antibody and T cell, that will then attack the Her-2 expressing tumors, and may induce tumor regression or slow progression of disease.
|Condition or disease||Intervention/treatment||Phase|
|Breast Cancer||Biological: MVA-BN-HER2||Phase 1|
MVA-BN®-HER2 is a candidate breast cancer immunotherapy product comprised of a highly attenuated non-replicating vaccinia virus, MVA-BN®, engineered to encode a modified form of the Her-2 protein.
MVA-BN® is a well-characterized, clonal strain of modified vaccinia virus Ankara (MVA) being developed as a smallpox vaccine, suitable for use in high-risk (e.g., immunocompromised) individuals. MVA-BN®-derived vectors encoding heterologous antigens are being developed for use as vaccines for infectious diseases such as HIV, and for the treatment of cancer. A large database exists from safety evaluations in animals and in humans for MVA-BN®, and MVA-BN®-derived vectors.
Her-2 is overexpressed in 20-30% of human breast cancers. It is an oncogene/growth factor receptor critical for malignant phenotype of Her-2 expressing tumors. It is an immunogenic target, and immune responses to this protein have been shown to mediate potent anti-tumor activity in multiple animal models. Means to stimulate anti-Her-2 reactivity are now being studied clinically. Sponsor, collaborators, and others have used both Protein and DNA vaccine forms of Her-2, and a safety database is developed and no significant adverse events have resulted from Her-2 directed vaccination.
MVA-BN®-HER2 encodes a modified form of the Her-2 protein, hereinafter referred to as HER2. HER2 contains the extracellular domain of Her-2 but lacks the intracellular, cell signaling domain. In addition, HER2 includes two universal T-cell epitopes from tetanus toxin to facilitate the stimulation of an immune response to Her-2, a self-protein.
The current trial, BNIT-BR-002, will evaluate the safety and biological activity of a fixed dose of MVA-BN®-HER2, with and without Herceptin, following 1st- or 2nd-line chemotherapy in patients with metastatic breast cancers which overexpress Her-2.
Patients will receive 3 subcutaneous vaccinations at 3 week intervals and have tumor followed by CT/MRI imaging and blood drawn for immune function analysis.
|Study Type :||Interventional (Clinical Trial)|
|Actual Enrollment :||9 participants|
|Intervention Model:||Single Group Assignment|
|Masking:||None (Open Label)|
|Official Title:||A Phase I Trial of a Fixed Dose of MVA-BN-HER2 Following 1st- or 2nd-Line Chemotherapy for HER-2-Positive Metastatic Breast Cancer|
|Study Start Date :||June 2007|
|Actual Primary Completion Date :||September 2010|
|Actual Study Completion Date :||September 2010|
- Safety and tolerability [ Time Frame: 2years, 3 months ]
- Immune response [ Time Frame: 2 yrs 3 mo ]
To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00485277
|United States, California|
|Alta Bates Herrick Hospital Comprehensive Cancer Center|
|Berkeley, California, United States, 94705|
|Stanford Cancer Center|
|Stanford, California, United States, 94305|
|Study Director:||Olga Bandman||Bavarian Nordic, Inc.|