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Cancer. 1983 Jun 1;51(11):1982-7.

Treatment of patients with advanced malignant lymphoma using gallium nitrate administered as a seven-day continuous infusion.


Previous trials of gallium nitrate (NSC-15200) showed that bolus administration produced dose-limiting nephrotoxicity without substantial antitumor activity. As an effort to increase the therapeutic index of this compound and to establish a satisfactory out-patient schedule, the authors evaluated the effects of gallium nitrate administered as a continuous infusion in patients with advanced malignant lymphoma. In an initial Phase I trial, four dose levels which ranged from 200 to 400 mg/m2/day in 27 patients were studied. Nausea which impaired oral hydration was found to be dose-limiting. A dose of 300 mg/m2/day was chosen for extended Phase II evaluation and 37 additional patients were entered into the study at that dose level. Overall, 16 of 47 patients (34%) who had bi-dimensionally measurable parameters of disease achieved major antitumor responses (six of 15 with diffuse "histiocytic" lymphoma, five of ten with diffuse poorly-differentiated lymphocytic lymphoma, two of five with nodular poorly-differentiated lymphocytic lymphoma, and three of 17 with Hodgkin's disease). The median duration of response was 2.5 months. Only 8% of patients who received 300 mg/m2/day developed an increase in serum creatinine concentration greater than 1.1 mg/dl over baseline values. Hypocalcemia occurred in two-thirds of patients. Other toxic effects, including paresthesiae, diarrhea, and hearing loss, were noted in less than 5% of patients. There was minimal myelosuppression. The authors conclude that gallium nitrate administered as a continuous infusion for seven days at 300 mg/m2/day is well-tolerated and effective treatment for patients with advanced malignant lymphoma. Outpatient administration using portable infusion pumps is safe and practical. Further evaluation of the drug administered as a constant infusion is indicated in patients with other neoplastic diseases.

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