Stereotactic radiation controls early stage lung cancer
Melanoma survivors at higher risk of other cancers
Cladribine and fludarabine equally helpful for progressive CLL
More frequent surveillance reduces colon cancer risk in Lynch syndrome families
Radiation can be avoided in early Hodgkin's lymphoma
NEW YORK (Reuters Health) - Intensive treatment with a combination of lomustine, temozolomide and radiotherapy can achieve long-term survival in patients newly diagnosed with glioblastoma, German and Swiss researchers report in the March 10th issue of the Journal of Clinical Oncology.
"We have markedly improved survival in a subgroup of patients with glioblastoma," senior investigator Dr. Ulrich Herrlinger told Reuters Health, "and see a way to further extend survival by optimizing combination chemotherapy in this group of patients."
Dr. Herrlinger of the University of Bonn and colleagues studied 39 patients who underwent radiotherapy. Of these, 31 were treated with standard doses of lomustine and temozolomide. The remaining 8 patients received doses of lomustine that were 10% higher and temozolomide doses that were 50% higher.
Overall, median survival was 23.1 months; 47.4% of the patients survived for 2 years, and 18.5% survived for 4 years.
After a median follow-up of 41.5 months, this endpoint had not been reached in the intensified therapy subgroup. Four of these patients survived for at least 56 months and 2 did so with no recurrence.
The team also established that methylation of the DNA repair gene MGMT promotor was associated with a reduced mortality (relative risk, 0.43) as was intensified chemotherapy (relative risk, 0.37).
WHO grade 4 hemotoxicity was seen more often in the intensified treatment group (57%) than in those given standard chemotherapy (16%). No non-hematologic toxicities were observed.
These findings, the researchers conclude, "demonstrate an encouraging therapeutic potential but also demonstrate the toxic limitations of the dose-intensified regimen in this setting."
Copyright © 2009 Reuters Limited. All rights reserved. Republication or redistribution of Reuters content, including by framing or similar means, is expressly prohibited without the prior written consent of Reuters. Reuters shall not be liable for any errors or delays in the content, or for any actions taken in reliance thereon. Reuters and the Reuters sphere logo are registered trademarks and trademarks of the Reuters group of companies around the world.