At a median follow-up of 30 months, disease recurrence rates were similar between HER2 over-expressors in both the vaccine and control groups, with recurrence rates of 18.2 percent and 13.8 percent, respectively. Although these recurrence rates were comparable (P = 0.7), the researchers observed a greater than 50 percent reduction in mortality rate among patients whose disease recurred. Interestingly, recurrence was more substantially reduced for vaccinated patients with low HER2 expression, Benavides says. Vaccinated low-expressors experienced 10.7 percent recurrence, compared with 18.2 percent for participants in the control group. Furthermore, the mortality rate among low-expressors with recurrent disease was 0 percent among vaccinated patients, versus 38 percent among the control group (P=0.08). Taken together these findings may be significant for the greater than 50 percent of breast cancer patients whose tumors fall into the HER2 low-expressing category and who are not eligible for trastuzumab treatment, Benavides concludes.
Overexpression of ODC1 is associated with poor outcome in childhood neuroblastoma and represents an important therapeutic target: Abstract 5832
Australian researchers have identified a potential new target for treatment of neuroblastoma, the most common solid tumor among young children.
The treatment involves inhibiting the production of ornithine decarboxylase (ODC1), a gene driven by the MYCN oncogene that is a powerful predictor of death from this disease. Researchers report that ODC1 inhibition delayed or prevented the development of neuroblastoma in a clinically relevant animal model, suggesting that suppressing ODC1 could be target for treating this cancer.
This disease, particularly in patients whose tumors carry multiple copies
|Contact: Staci Vernick Goldberg|
American Association for Cancer Research