Tag Archives: BRAF

Personalizing Personalized Medicine

On Monday, April 25th, Fight Colorectal Cancer held a free patient webinar that tackled the somewhat complex but fascinating topic of personalized medicine. Personalized medicine is what the cancer community calls treatments that are tailored to each patient’s genetic makeup. It is the future of cancer care and in some cases, it is already making a big difference in the ways patients are treated. You can learn about these cutting edge treatments and about emerging findings in an archive of the webinar below. Our thanks to Carolyn Grande, CRNP, AOCNP for leading the discussion. She a phenomenal educator on this topic and a member of our Medical Advisory Board. She graciously

Value of KRAS and BRAF Mutations in Forecasting Survival

For stage II and III colon cancer, a tumor mutation in the KRAS gene does not impact either relapse-free survival or overall survival. BRAF mutations, which are less common, don’t help with prognosis for relapse-free survival, but do provide information about overall survival in some tumors.   Patients with BRAF mutations and microsatellite-low or stable tumors had poorer overall survival than those without mutations.

Another Gene Found Linked to Lack of Erbitux/Vectibix Response

Another mutated gene has been discovered that appears to cause resistance to treatment with the EGFR inhibitors Erbitux® (cetuximab) and  Vectibix™ (panitumumab). Only a fraction of patients who receive Erbitux or Vectibix respond to it.  There is now convincing evidence that the 30 to 40 percent of colorectal cancer patients whose tumors have mutated KRAS genes don’t benefit, but what about others who have normal or wild-type KRAS and don’t respond either? Scientists in Italy have found that about 12 percent of wild-type patients have a mutation in their tumor’s BRAF gene, and these patients showed no response to Erbitux or Vectibix.

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