21 days after the first treatment the survival rate in the group of mice treated with both BC-819 and gemcitabine was 100% while in the group treated with BC-819 alone was 50% and 0% in the groups treated with either the combination of gemcitabine and Luc-H19 or Luc-H19 alone (Figure 4(b)). This evidence concerns the gene H19 and breast cancer.