The patients all had a recurrent malignant glioma known as alkylator-refractory anaplastic oligodendroglioma (AO), for which there is no existing standard therapy. Oligodendrogliomas begin in brain cells called oligodendrocytes, which provide support around nerves by building a sheath of myelin and facilitating electrical nerve impulses. The relatively uncommon tumor affects about 2,000 persons annually in the U.S. Most are under age 50.
Avastin, known generically as bevacizumab, is the first approved therapy designed to inhibit angiogenesis, the process by which new blood vessels develop and carry vital nutrients to a tumor. It is approved so far to treat certain metastatic colon cancers and non-small cell lung cancer.
"Bevacizumab is an important drug for us," said Marc Chamberlain, M.D., author of the study published in the April 15 edition of the journal Cancer. "Of all of the targeted therapies for gliomas, this has been the most promising. And this is practice changing."
Therapy for treating recurrent high-grade gliomas is palliative. All patients with these high-grade tumors eventually die of their cancer. However, bevacizumab has the potential to be the best palliative treatment, according to Chamberlain, who is director of the Neuro-oncology Program at the SCCA and a professor of neurology and neurological surgery at the University of Washington School of Medicine.
Chamberlain said he expects that patients treated with the drug will have a marked improvement in their quality of life because the use of steroids, a common treatment that has significant side effects, can be greatly reduced or even eliminated.
"While treatment with Avastin does dramatically improve survival time, the time that patients have left is of better quality and less about living with the disease itself," Chamberlain said. In this study, the patients, ages 24-60, received an infusion of bevacizumab every two weeks for an average of 14.5 cycles (range was two to 39 cycles). Fourteen (64 percent) patients showed a partial response to the medicine as shown on radiographic scans. Two patients had stable disease and six had progressive disease. Progression-free survival ranged from three to 18 months and survival for the entire group of patients was three to 19 months.
About Seattle Cancer Care Alliance
Seattle Cancer Care Alliance, established in 1998, unites the adult and pediatric cancer-care services of Fred Hutchinson Cancer Research Center, UW Medicine and Children's Hospital and Regional Medical Center. A major focus of SCCA is to speed the transfer of new diagnostic and treatment techniques from the research setting to the patient bedside while providing premier, patient-focused cancer care. Patients who come to SCCA receive the latest research-based cancer therapies as well as cutting-edge treatments for a number of non-malignant diseases under development by its partner organizations. SCCA has three clinical-care sites: an outpatient clinic on the Fred Hutchinson campus, a pediatric-inpatient unit at Children's and an adult-inpatient unit at UW Medical Center.
Further reports about: > Avastin > Bevacizumab > Cancer > Medical Wellness > Myelin > Oligodendrogliomas > SCCA > alkylator-refractory anaplastic oligodendroglioma > blood vessel > brain cell > brain tumor progression > brain tumors > electrical nerve impulses > malignant glioma > metastatic colon cancers > non-small cell lung cancer > oligodendrocytes > palliative treatment > radiographic scans
On track to heal leukaemia
18.01.2017 | Universitätsspital Bern
Penn vet research identifies new target for taming Ebola
12.01.2017 | University of Pennsylvania
Yersiniae cause severe intestinal infections. Studies using Yersinia pseudotuberculosis as a model organism aim to elucidate the infection mechanisms of these...
Researchers from the University of Hamburg in Germany, in collaboration with colleagues from the University of Aarhus in Denmark, have synthesized a new superconducting material by growing a few layers of an antiferromagnetic transition-metal chalcogenide on a bismuth-based topological insulator, both being non-superconducting materials.
While superconductivity and magnetism are generally believed to be mutually exclusive, surprisingly, in this new material, superconducting correlations...
Laser-driving of semimetals allows creating novel quasiparticle states within condensed matter systems and switching between different states on ultrafast time scales
Studying properties of fundamental particles in condensed matter systems is a promising approach to quantum field theory. Quasiparticles offer the opportunity...
Among the general public, solar thermal energy is currently associated with dark blue, rectangular collectors on building roofs. Technologies are needed for aesthetically high quality architecture which offer the architect more room for manoeuvre when it comes to low- and plus-energy buildings. With the “ArKol” project, researchers at Fraunhofer ISE together with partners are currently developing two façade collectors for solar thermal energy generation, which permit a high degree of design flexibility: a strip collector for opaque façade sections and a solar thermal blind for transparent sections. The current state of the two developments will be presented at the BAU 2017 trade fair.
As part of the “ArKol – development of architecturally highly integrated façade collectors with heat pipes” project, Fraunhofer ISE together with its partners...
At TU Wien, an alternative for resource intensive formwork for the construction of concrete domes was developed. It is now used in a test dome for the Austrian Federal Railways Infrastructure (ÖBB Infrastruktur).
Concrete shells are efficient structures, but not very resource efficient. The formwork for the construction of concrete domes alone requires a high amount of...
10.01.2017 | Event News
09.01.2017 | Event News
05.01.2017 | Event News
18.01.2017 | Power and Electrical Engineering
18.01.2017 | Materials Sciences
18.01.2017 | Life Sciences