Pearl H. Seo, MD, MPH

Approximately 212,920 new cases of invasive breast cancer were estimated to occur in the United States in 2006.1 The incidence rate has continued to rise slowly over the past 20 years due to the continued increase of breast cancer in women aged 50 and older (375 cases per 100,000 women), peaking at 75 to 79 years of age (525 per 100,000 women).

People over the age of 65 are a fast-growing segment of the US population, and with the incidence of cancer increasing with age, the challenges of treating older cancer patients are also on the rise. Drs. Lichtman and Skirvin present a comprehensive review of the antineoplastic agents used in elderly cancer patients. They highlight the important factors of chemotherapy pharmacology in elderly cancer patients, with emphasis on the impact of physiologic changes-especially renal clearance-in dosing and toxicity. In addition, descriptions of significant toxicities are provided. The following additional issues should be considered.