The patients who undergo IORT with electrons and treated with perioperative chemotherapy (5-FU leucovorin) followed by additional external-beam radiation and chemotherapy appear to have improved survival, with few early or late complications. Dose escalation of external-beam radiation and chemotherapy may further improve local control of disease and survival of patients.
The combination of gemcitabine and topotecan seems to be active against NSCLC with acceptable hematologic toxicity and minimal nonhematologic toxicity. The recommended dose for further study is 1250 mg/m2 of gemcitabine (days 1, 8, 15) and 2.0 mg/m2 of topotecan (days 1, 8, 15) administered every 28 days.
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