“A landmark analysis of findings from the EF-14 trial testing the efficacy and safety of tumor treating fields (TTFields) for the treatment of patients with glioblastoma multiforme (GBM) has found that the risk of death was reduced by 37% and overall survival (OS) was extended by a median of 5 months with the use of the device.
“Two-, 3-, 4-, and 5-year overall and progression-free survival (PFS) rates for patients who received TTFields with adjuvant temozolomide were significantly improved over patients who received temozolomide alone, reported Roger Stupp, MD, professor of neurological surgery at Northwestern University Feinberg School of Medicine and associate director for strategic initiatives at the Robert H. Lurie Comprehensive Cancer Center.”
“Bristol-Myers Squibb Company (NYSE:BMY) today announced that CheckMate -143, a randomized Phase 3 clinical trial evaluating the efficacy and safety of Opdivo in patients with first recurrence of glioblastoma multiforme (GBM), did not meet its primary endpoint of improved overall survival over bevacizumab monotherapy. These data will be presented on May 7, 2017 at the World Federation of Neuro-Oncology Societies (WFNOS) meeting in Zurich, Switzerland.
” ‘GBM is a historically difficult disease to treat and conventional treatment options have demonstrated limited responses,’ said Fouad Namouni, M.D., head of Oncology Development and head of Medical, Bristol-Myers Squibb. ‘We remain steadfast in our pursuit of treatments for diseases with the highest unmet need and continue our work to determine how our Immuno-Oncology agents can potentially improve outcomes for these patients.’ ”
“A wearable medicaldevice that delivers electrical fields through the scalp helped to extend the survival of patients with lethal brain tumors, according to data presented Sunday.
“In a study involving major medical centers in the United States and abroad, the novel treatment was used to administer alternating, low-intensity ‘tumor-treating fields’ to newly diagnosed glioblastoma patients who also were getting chemotherapy. Such electrical fields may block the division of cancer cells and cause their demise, according to Roger Stupp, the study’s lead investigator and a neuro-oncologist at the Northwestern University Feinberg School of Medicine.”
“Being diagnosed with a malignant brain tumor is devastating news for patients and their loved ones. Whereas some types of tumor respond well to treatment, others such as glioblastomas – the most common and aggressive brain tumors – are known to recur and progress within short times from the diagnosis. Patients diagnosed with this type of cancer, and who undergo current standard treatment, have a median survival of 16 months.
Based on recent information on the mechanisms of chemotherapy, a team of researchers of the McGill University Health Centre (MUHC) developed a new clinical approach to increase the efficiency of treatment in glioblastomas that increased the median survival to 22 months – bringing much needed hope to those affected by this aggressive disease. The findings of this promising phase II clinical trial have been published in the International Journal of Radiology Oncology.”
“Treating older patients who have malignant brain cancer with the chemotherapy drug temozolomide plus a short course of radiation therapy extends survival by two months compared to treating with radiation alone, show clinical trial results published in the New England Journal of Medicine.
“For 45% of the study participants, improved survival almost doubled — from 7 months to 13.5 months, says co-principal investigator Normand Laperriere, radiation oncologist at Princess Margaret Cancer Centre, University Health Network. This was linked to a molecular marker that indicated if a DNA repair mechanism against the drug was active. When the mechanism was ‘off,’ tumours responded better to treatment.”
“Adding temozolomide chemotherapy to short-course radiotherapy for older patients with glioblastoma was tied to longer progression-free and overall survival than with a short course of radiotherapy alone, researchers found.
“In a randomized controlled trial of glioblastoma patients ages 65 and up, those on combination therapy had a significantly lower risk of death during the study than those who had only radiation (HR 0.67, 95% CI 0.56-0.80, P<0.001), James Perry, MD, of Sunnybrook Research Institute in Toronto, and colleagues reported in the New England Journal of Medicine.”
With a few exceptions, glioblastoma (GBM) remains largely incurable, and the U.S. Food and Drug Administration (FDA) has approved few treatments for the disease. Surgery (when feasible), radiation, and temozolomide are used in most patients. But even if a newly diagnosed tumor can be surgically excised, recurrences are too common.
In this blog post, I simply list some of the new treatments available in clinical trials for GBM and other high-grade brain tumors. Only drugs that have at least some preliminary results of activity are included, and the list is not meant to be fully comprehensive. The interested reader can judge for herself what might be of interest, keeping in mind that no single treatment is suitable or will work for all GBM patients. Continue reading…
“In a rigorous study of tumor tissue collected from 125 patients with aggressive brain cancers, researchers at Johns Hopkins say they have found no evidence of cytomegalovirus (CMV) infection and conclude that a link between the two diseases, as claimed by earlier reports, likely does not exist.
“The Johns Hopkins team cautioned that studies to confirm this finding are needed to absolutely rule out any role for the common CMV in glioblastoma and other cancers that arise in neurological support cells called glial cells. But they say their study substantially weakens the likelihood of that role.
” ‘We have found no evidence of CMV in these tissues, and if there is no virus, targeting that virus to affect cancer using antiviral drugs or tailored vaccines doesn’t make biological sense,’ says Angelo M. De Marzo, M.D., Ph.D., professor of pathology, oncology and urology at the Johns Hopkins Kimmel Cancer Center.”