Cancer Chemotherapy and Pharmacology | Mar 27, 2013
A retrospective study of cancer patients suggests that bevacizumab (Avastin) may be an effective treatment for non-small cell lung cancer (NSCLC) with bone metastases (cancer spread to the bone). The patients had non-squamous NSCLC with bone metastases and had been treated with zoledronic acid (Zometa/Reclast) and chemotherapy either with or without Avastin. Avastin treatment was associated with better control of both bone metastases and overall disease, longer time to bone metastasis progression, and fewer complications related to bone degeneration, such as fractures or spinal cord compression.
Tokito T, Shukuya T, Akamatsu H, Taira T, et al. Cancer Chemother Pharmacol. Mar 27, 2013.
“Skeletal-related events (SREs) negatively affect the quality of life of patients with cancer. Vascular endothelial growth factor receptor (VEGFR)-targeted therapy is effective against bone metastasis in animal models, but the clinical efficacy of anti-VEGFR inhibitors against bone metastases remains unclear. Therefore, we aimed to investigate the efficacy of chemotherapy with bevacizumab, an anti-VEGF antibody, against bone metastases.”
Biothera has completed patient enrollment in a second phase II clinical trial testing a drug called Imprime PGG against non-small cell lung cancer (NSCLC). Imprime PGG redirects the immune system to attack the cancer. The drug also enhances the effectiveness of antibody drugs (drugs in the form of a type of immune system protein) like bevacizumab (Avastin) or cetuximab (Erbitux). The current phase II trial will compare NSCLC patients receiving Imprime PGG in combination with Avastin and chemotherapy to those receiving only Avastin and chemotherapy. Another ongoing phase II trial uses a similar design, but with Erbitux instead of Avastin, and has produced promising preliminary results.
Biothera announced today that it has completed enrollment of its 90-patient Phase 2b clinical study of Imprime PGG, bevacizumab (Avastin) and two chemotherapeutic drugs in non-small cell lung cancer (NSCLC).
Combination of bevacizumab and weekly paclitaxel showed synergitic effects, anti-tumor efficacy and a good toxicity profile for patients with breast cancer but has never been evaluated in non small cell lung cancer (NSCLC). We retrospectively reviewed safety and efficacy of this regimen in metastatic non-squamous NSCLC as fourth-line therapy or beyond.
In our experience, combination of bevacizumab and weekly paclitaxel exhibited acceptable toxicity and had encouraging anti-tumor efficacy as fourth-line treatment or beyond for non-squamous NSCLC patients, supporting further evaluation in larger prospective studies.
A retrospective study assessed the use of weekly bevacizumab (Avastin) along with paclitaxel (Taxol) every 3 weeks in patients with advanced non-squamous, non-small cell lung cancer (NSCLC) who had previously received at least three rounds of treatment. The Avastin-Taxol combination was found to be an effective antitumor treatment. Some patients experienced serious side effects, including one death. However, overall toxicity was deemed acceptable compared to typical chemotherapy results in similar patients.
An analysis of multiple clinical trials compared erlotinib (Tarceva) alone to combining Tarceva with other targeted therapies as second-line treatment for advanced non-small cell lung cancer (NSCLC). In the various trials, Tarceva was combined with bevacizumab (Avastin), bortezomib (Velcade), everolismus (Afinitor), sorafenib (Nexavar), sunitinib (Sutent), entinostat, tivantinib, and R1507. While combined therapy produced more side effects, it was more effective than Tarceva alone. Notably, the trials included many patients who had not been tested for mutations in the EGFR and KRAS genes. In patients who had EGFR mutations and/or lacked KRAS mutations, Tarceva alone tended to control cancer progression better than combined therapy, highlighting the importance of biomarker testing to identify which patients are most likely to benefit from different therapies.
Annals of Cancer Research and Therapy | Sep 28, 2012
Bevacizumab (Avastin), which is approved for treatment of a number of advanced-stage cancer types, is commonly avoided in patients with brain metastases (cancer that has spread to the brain) because of fear of brain hemorrhages (bleeding in the brain). A retrospective study of 52 patients with advanced non-small cell lung cancer (NSCLC) who had received chemotherapy containing Avastin found no cases of serious bleeding events and no significant differences in survival or treatment side effects between patients with or without brain metastases. Avastin may therefore be a safe treatment option in NSCLC with brain metastases.
Research paper: https://www.jstage.jst.go.jp/article/acrt/20/2/20_47/_pdf