The oncologist
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On July 31, 2009, the U. S. Food and Drug Administration granted approval for the use of bevacizumab (Avastin(R); Genentech, Inc., South San Francisco, CA) in combination with interferon (IFN)-alpha2a for the treatment of patients with metastatic renal cell carcinoma. ⋯ There was no survival advantage. In the reviewed trial, serious adverse events and National Cancer Institute Common Terminology Criteria for Adverse Events grade >/=3 adverse events were reported more frequently in bevacizumab-treated patients (31% versus 19% and 63% versus 47%, respectively). The most common bevacizumab-related toxicities were bleeding/hemorrhage, hypertension, proteinuria, and venous or arterial thromboembolic events.
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Combined modality therapy emerged from preclinical data showing that carefully chosen drugs could enhance the sensitivity of tumor cells to radiation while having nonoverlapping toxicities. Recent advances in molecular biology involving the identification of cellular receptors, enzymes, and pathways involved in tumor growth and immortality have resulted in the development of biologically targeted drugs. This review highlights the recent clinical data in support of newer generation cytotoxic chemotherapies and systemic targeted agents in combination with radiation therapy.
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Hepatocellular carcinoma (HCC) is a complex condition associated with a poor prognosis. Treatment outcomes are affected by multiple variables, including liver function, performance status of the patient, and tumor stage, making a multidisciplinary approach to treatment essential for optimal patient management. Only ∼30% of patients are eligible for curative therapies (surgery or ablation); palliative treatments include transcatheter arterial chemoembolization (TACE) and sorafenib. ⋯ The Global Investigation of therapeutic DEcisions in hepatocellular carcinoma and Of its treatment with sorafeNib (GIDEON) study is a global, noninterventional study of patients with unresectable HCC receiving sorafenib. The aim of that study is to compile a large robust database to evaluate local, regional, and global factors influencing the management of patients with HCC. It is hoped that findings from the GIDEON study along with phase III RCT data will lead to better outcomes for patients with intermediate-advanced HCC.
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In the majority of patients, existing therapies for neuropathic pain are far from effective. Furthermore, all current treatments are symptomatic rather than disease-modifying or curative. ⋯ In this article, we suggest a shift in emphasis of the drug discovery paradigm toward unbiased evaluation of the particular neurobiological mechanisms contributing to neuropathic pain in individual patients. Genomewide association studies and other discovery science approaches to identify significant novel targets should be given priority as should the development of increasingly sophisticated tools for measuring and categorizing neuropathic pain.