Safety profile of gemcitabine, a novel anticancer agent, in non-small cell lung cancer

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Abstract
Gemcitabine is a novel anticancer agent showing activity with relatively mild toxicity across a range of solid tumors including non-small cell lung cancer (NSCLC). In studies using similar doses and schedules, consistent response rates of around 20% were recorded in NSCLC. In an integrated safety study using data from 360 patients with NSCLC, gemcitabine exhibits a mild safety profile for such an active drug. Hematological toxicity is mild and short lasting, and the level of infection associated with this degree of myelosuppression was low. Mild transaminase elevations occurred frequently but were not progressive or dose limiting. There was no evidence of cumulative hepatic or renal toxicity. Nausea and vomiting were mild, rarely dose limiting and generally well controlled with standard antiemetics. Mild flu-like symptoms were experienced in a small proportion of patients and rarely resulted in discontinuation. Where edema or peripheral edema were experienced, there was no evidence of any association with cardiac, hepatic or renal failure. Hair loss was rare and there was no grade 4 alopecia. In conclusion, gemcitabine is a promising new agent in the treatment of NSCLC. Its mild toxicity which is non-overlapping with other cytotoxics has prompted investigation into its use in combination with other chemotherapy regimens.

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