Brain Cancer Survival Improved Following FDA Approval of Bevacizumab
Aug 19, 2013 - 3:06:08 PM
"There has been a great deal of debate about the effectiveness of bevacizumab in treating patients with glioblastoma," says lead author Derek Johnson, M.D., a neuro-oncologist at Mayo Clinic Cancer Center. "Our study found that, at the population level, treatment strategies involving bevacizumab prolonged survival in patients with progressive glioblastoma."
Researchers analyzed data on 5,607 adult patients from the National Cancer Institute (NCI) Surveillance, Epidemiology and End Results (SEER) database before and after the conditional approval of bevacizumab for the treatment of glioblastoma in 2009. The SEER database covers 18 geographic areas of the U.S., which collectively represent 28 percent of the U.S. population.
Researchers studied survival in 1,715 patients with glioblastoma who died in 2006, 1,924 who died in 2008 and 1,968 who died in 2010. "The difference in survival between 2008 and 2010 was highly significant and likely unrelated to any advancements in supportive care," Dr. Johnson says. "This study provides the strongest evidence to date that bevacizumab therapy improves survival in patients with glioblastoma."
Glioblastoma, is an aggressive cancer in which tumors grow rapidly and spread rapidly to new sites. It is the most common malignant brain tumor in adults and accounts for about 22 percent of all brain cancers. About 3,000 people develop a glioblastoma each year in the U.S.
Co-authors include Heather Leeper, M.D., and Joon Uhm, M.D. both of Mayo Clinic.
About Mayo Clinic Cancer Center
As a leading institution funded by the National Cancer Institute, Mayo Clinic Cancer Center conducts basic, clinical and population science research, translating discoveries into improved methods for prevention, diagnosis, prognosis and therapy. For information on cancer clinical trials, call 507-538-7623.
Mayo Clinic is the first and largest integrated, not-for-profit group practice in the world. Doctors from every medical specialty work together to care for patients, joined by common systems and a philosophy of "the needs of the patient come first." More than 3,700 physicians, scientists and researchers, and 50,100 allied health staff work at Mayo Clinic, which has campuses in Rochester, Minn; Jacksonville, Fla; and Scottsdale/Phoenix, Ariz.; and community-based providers in more than 70 locations in southern Minnesota., western Wisconsin and northeast Iowa. These locations treat more than half a million people each year. To obtain the latest news releases from Mayo Clinic, go to www.mayoclinic.org/news. For information about research and education, visit www.mayo.edu. MayoClinic.com (www.mayoclinic.com) is available as a resource for your health stories.
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