The oncologist
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Numerous clinical studies have demonstrated the therapeutic benefit of trastuzumab in women with breast cancer. However, a small but not insignificant proportion of patients have experienced trastuzumab-associated cardiotoxicity during these trials. This phenomenon is generally characterized by an asymptomatic reduction in left ventricular ejection fraction (LVEF) or, less often, congestive heart failure (CHF). ⋯ Prior to treatment initiation, a risk-benefit analysis should be performed for each individual patient, including a thorough assessment of potential risk factors and cardiac function. Cardiac monitoring should be continued throughout trastuzumab therapy and the follow-up period, because early recognition of trastuzumab-associated cardiac dysfunction can allow effective medical intervention. Following the occurrence of asymptomatic LVEF reduction or CHF and appropriate medical intervention, reintroduction of trastuzumab may be considered in patients following resolution of normal cardiac function, or in those for whom the benefit of antitumor therapy outweighs the risk for CHF.
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To describe the U.S. Food and Drug Administration (FDA) review and approval of sorafenib (Nexavar; Bayer Pharmaceuticals Corp., Montville, NJ, and Onyx Pharmaceuticals Corp., Emeryville, CA), an oral kinase inhibitor, for the treatment of patients with unresectable hepatocellular carcinoma (HCC). ⋯ Sorafenib is the first systemic therapy to demonstrate a survival benefit in a randomized trial for unresectable HCC and has received FDA approval for this indication.
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Few data are available on the safety and efficacy of sorafenib in patients with multifocal hepatocellular carcinoma (HCC) and advanced liver cirrhosis. ⋯ Sorafenib is effective and safe in patients with multifocal HCC and Child-Pugh class A cirrhosis. Survival in Child-Pugh class B patients is significantly less than in Child-Pugh class A patients, warranting a prospective randomized trial with a placebo group. Child-Pugh class C patients have a limited life expectancy despite sorafenib treatment because of their severe underlying disease and derive little benefit from sorafenib treatment.