Objective. Cytotoxic chemotherapy is a frequently, and increasingly, used treatment for malignant disease and is associated with substantial toxicity. A number of drugs have been developed in recent years for the prevention and treatment of chemotherapy-induced toxicity. Most are specific to one group of drugs, eg, mesna and the oxazophosphorines, or one type of toxicity, eg, the 5-HT3 antagonist antiemetics. The first multiorgan cytoprotective, amifostine, recently was launched, and another, glutathione, is under development. The purpose of this review is to con sider the agents currently available for the manage ment of cytotoxic drug-induced toxicity and their place in treatment. Special attention is directed to amifostine and drugs in development, including glu tathione, Ossirene (Baker Norton), ORG-2766, and dexrazoxane and less to agents in routine clinical use. Data sources. A variety of sources were used, including manual and on-line (Medline) literature searching. Approved and other drug names were used as the primary search terms, linked with cytotoxic chemotherapy where limitation was required. Medi cal information departments of drug companies also were used where appropriate. Study selection. Particular attention was directed to randomized clinical trials, but nonrandomised and animal studies were considered where appropriate. Conclusions. Over the past decade significant advances have been made in the control of chemo therapy-induced toxicity and new agents promise even greater control. This is important, not only because they may improve the quality of life of conventionally treated cancer patients, but also be cause they should allow the dose-response relation ship for cytotoxic drug treatment to be fully explored. Unfortunately, the data available at present are insuf ficient to determine the extent to which this promise will be fulfilled.
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