A phase I trial of intravenously-administered recombinant tumor necrosis factor-alpha in cancer patients.
1988
We report a phase I clinical investigation of 30-minute and four-hour intravenous (IV) infusions of recombinant tumor necrosis factor (rTNF)-alpha. Thirty-nine patients with disseminated cancer received escalating doses of rTNF-alpha for five consecutive days every 2 weeks for a total duration of 8 weeks. Dose escalations followed a modified Fibonacci scale with a minimum of four patients entered at each dose level: 5, 10, 25, 50, 75, 100, 150, 200, and 250 micrograms/m2/d. Toxicities consisted mainly of constitutional symptoms including fever, chills, headache, and fatigue, increasing in severity with dose escalation. No significant differences in dose-limiting toxicities were seen between the two rates of IV infusion. The maximum tolerated dose (MTD) was 200 micrograms/m2 with dose limiting toxicity being constitutional symptoms and hypotension. Hematologic changes included median decrease in both granulocyte and platelet counts of 38% and 41%, respectively (range, 16% to 85%), although clinically signi...
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