“A subgroup of patients with a devastating brain tumor called glioblastoma multiforme benefited from treatment with a class of chemotherapy drugs that two previous large clinical trials indicated was ineffective against the disease, according to a study at the Stanford University School of Medicine.
“Specifically, patients in the subgroup who were treated with chemotherapy drugs that block the growth of new blood vessels in the tumor lived an average of about one year longer than those who were given other classes of chemotherapy drugs, the researchers found.”
“Multi-institutional researchers investigating an incurable brain cancer in children have discovered three distinct subgroups of disease and identified promising drugs to target each type.
“The research findings are published online today and depicted on the cover of Cancer Cell. Co-principal investigator Dr. Daniel De Carvalho, Scientist at Princess Margaret Cancer Centre, says being able to segregate and classify specific subgroups opens the door to providing precision medicine for children who have a highly malignant, non-inherited type of brain cancer called atypical teratoid rhabdoid tumours (ATRTs).”
“Phase 1 study results presented at the 21st Annual Scientific Meeting and Education Day of the Society for Neuro-Oncology (SNO) demonstrated the antibody drug conjugate ABT-414 has shown promising results for the treatment of patients with EGFR-amplified, recurrent glioblastoma (GBM).
“Lead author Martin van den Bent, MD, PhD, of the Erasmus MC Cancer Center in Rotterdam, the Netherlands, is presenting the findings during the SNO meeting, which was held November 17-20, 2016, in Scottsdale, Arizona.
“In an interview with Targeted Oncology, van den Bent discussed the trial’s significant findings, that agent’s toxicity profile, and what lies ahead for the investigational agent.”
“Based on encouraging efficacy signals and safety data from separate trials exploring the PD-1 inhibitor pembrolizumab (Keytruda) and the PD-L1 inhibitor durvalumab (MEDI4736), there is a role for checkpoint inhibitors in the treatment of glioblastoma multiforme (GBM). Data from the studies were reported by David Reardon, MD, at the 21st Society for Neuro-Oncology (SNO) Annual Scientific Meeting.
“Reardon said that these results mark important firsts in the field: ‘There has been a lot of anticipation regarding the role of checkpoint inhibitors for glioblastoma and whether we’ll see results in any way similar to the exciting results that have been observed in other cancer indications with this new class of cancer therapeutics.’ ”
“Findings from a recent phase II study showed the PD-L1 inhibitor durvalumab generated durable responses in bevacizumab-naïve patients with recurrent glioblastoma multiforme (GBM). Findings of the study were presented at the 2016 Society for Neuro-Oncology Annual Meeting.
“In a 30-patient cohort, the 6-month progression-free survival (PFS) rate was 20.0% (6 patients; 90% CI, 9.7-33.0). The median PFS was 13.9 weeks (95% CI, 8.1-24.0). Of these 6 patients, 3 had wild-type IDH1 status and 3 had mutated IDH1.”
“Researchers are hoping that a proposed phase II study exploring use of the Optune system in patients with recurrent grade III malignant glioma will expand the indications for the tumor treating fields (TTFields) device beyond its current FDA-approved use in recurrent grade IV glioblastoma.
“Daniel O’Connell, MD, a neuro-oncologist at UCLA’s Geffen School of Medicine, discussed his proposal with Targeted Oncology at the 21st Annual Scientific Meeting of the Society of Neuro-Oncology (SNO) held November 17 to 20, 2016 in Scottsdale, Arizona.”
“The PD-1 inhibitor nivolumab (Opdivo) was successfully combined with radiotherapy alone or concurrently with temozolomide for patients with newly-diagnosed glioblastoma multiforme (GBM) in cohorts 1c and 1d from the phase I CheckMate-143 study, according to findings presented at the 2016 Society for Neuro-Oncology Annual Meeting.
” ‘The research question was if treatment with nivolumab to block immune checkpoint pathways could potentiate an antitumor immune response and have synergistic effects with radiotherapy or chemoradiotherapy in patients with newly diagnosed GBM,’ stated first author by Antonio Omuro, MD, of the Memorial Sloan Kettering Cancer Center.”
Chimeric antigen receptor (CAR) T-cell therapy is a new, immune system-based cancer treatment that has garnered recent media attention. In a clinical trial, CAR T-cell treatment left no signs of tumors in 70% to 90% of children and adults with the aggressive blood cancer acute lymphocytic leukemia (ALL). ALL is almost always fatal, and the results observed with CAR T-cell treatment are nothing short of spectacular. Continue reading…
“Cody Mahan and his family didn’t think they would have to deal with cancer again so soon.”After graduating college, Mahan, 23, had earned a prestigious Department of Defense SMART scholarship and had just started working at Warner Robins Air Force Base. He was looking forward to a promising engineering career.
“In December, he started to experience headaches and then pain in his neck. His family took him to a hospital close to where they lived in Tennessee, suspecting meningitis. Doctors discovered a tumor on the right side of his brain. ‘It was quite a shock,’ says Cody’s mother, Lisa. ‘It was the furthest thing from our minds when we went to the ER.’
“They had thought cancer was behind them. As a teenager, Mahan had ALL (acute lymphoblastic leukemia) and had received full cranial radiation as part of his treatment. At the time, this was a standard prophylactic for patients with ALL. The radiation, his family suspects, may have led to the development of the brain tumor. In fact, radiation exposure is one of the only known risk factors for developing a brain tumor.”
Editor’s note: This well-written story describes a new approach to glioblastoma surgery.