Study Findings Show Role for Pembrolizumab and Durvalumab in GBM Treatment, Expert Says


“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.’ ”

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Expert Examines Immunotherapy Potential in Small Cell Lung Cancer


“Several ongoing clinical trials are examining the efficacy and safety of immunotherapy agents in patients with small cell lung cancer (SCLC), explains David P. Carbone, MD, PhD.

“Two early phase studies have already shown encouraging results. In the phase I/II CheckMate-032 trial, pretreated patients with SCLC received monotherapy with the PD-1 inhibitor nivolumab (Opdivo) or the combination of nivolumab plus the CTLA-4 inhibitor ipilimumab (Yervoy). Data showed that the median progression-free survival (PFS) was 3.35 months with the combination and 1.38 months with nivolumab alone. Median OS was 7.75 months with the combination and 3.55 months with single-agent therapy. The objective response rate (ORR) with the combination was 31.1%.

“In the phase Ib KEYNOTE-028 trial, the PD-1 inhibitor pembrolizumab (Keytruda) had an ORR of 29.2% (95% CI, 12.6-51.1) in patients with SCLC who had prior chemotherapy.”

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Small Cell Lung Cancer at ASCO: Some Welcome News

Small cell lung cancer (SCLC) is a fatal disease that has not seen new drug approvals for the last 17 years. Considering the relative success of ‘immune checkpoint inhibitors’ in non-small cell lung cancer (NSCLC), it is not surprising that several abstracts recently presented at the 2015 American Society of Clinical Oncology (ASCO) annual meeting were devoted to clinical trials testing these trendy, immune system-boosting drugs in people with SCLC. Continue reading…