Drug intelligence / Profile preview

heterologous HER2 DNA vaccine

Development stage
Unknown
Lead developer
Helixmith
Modality
DNA Vaccines → Plasmid DNA → DNA Therapeutics → Nucleic Acid Therapeutics, Prophylactic Vaccines → Vaccines & Immunotherapeutics
Administration
Intramuscular
01

Overview

The heterologous HER2 DNA vaccine is an investigational therapeutic cancer vaccine platform designed to overcome immune tolerance to self-antigens in HER2-expressing malignancies, such as breast cancer. This vaccination strategy typically utilizes DNA plasmids encoding xenogeneic (heterologous) HER2 sequences (such as human HER2, rat Neu, or hybrid human/rat HER2 constructs), often delivered via intramuscular injection combined with electroporation. By presenting a slightly foreign (heterologous) version of the HER2 antigen, the vaccine breaks immunological tolerance and stimulates robust, cross-reactive humoral and cellular (T-cell) immune responses against self-HER2 overexpressed on tumor cells. Some specific candidates within this class, such as VM206RY, employ a heterologous prime-boost regimen combining a DNA plasmid primer with a recombinant adenoviral vector boost to further enhance antigen-specific immunity.

Other names
heterologous HER2/neu DNA vaccineheterologous human/rat HER2 DNA vaccinexenogeneic HER2 DNA vaccine
02

Targets

ERBB2 (Erb-b2 receptor tyrosine kinase 2)

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