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Phase I study of tumor necrosis factor-alpha and actinomycin D in pediatric patients with cancer: a Children's Cancer Group study.

In preclinical studies, synergy was observed between tumor necrosis factor-alpha (TNF-alpha) and agents that interact with DNA topoisomerase II, such as actinomycin D (Act D). Based upon this, a Phase I study was conducted in pediatric patients utilizing an escalating dose of recombinant TNF (rTNF) in combination with a fixed dose of Act D. Act D (15 micrograms/kg/day) was administered daily by intravenous push immediately followed by intravenous rTNF daily for 5 consecutive days. Thirty-three patients with refractory malignancies were entered in the study, of whom 28 patients could be evaluated for toxicity. Malignancies included sarcomas (16), Wilms' tumor (6), leukemias (3), and others (3). The starting dose for rTNF was 40 micrograms/m2/day x 5 and was escalated in subsequent patient groups until nonhematopoietic, dose-limiting toxicity occurred. At 240 micrograms/m2/day of rTNF, three of six patients experienced grade 4 toxicity consisting of hypotension, hemorrhagic gastritis, and renal and liver biochemical abnormalities. Evidence of antitumor response was observed in two patients: one with metastatic Ewing's sarcoma and one with Wilms' tumor. We conclude that the maximum tolerated dose of rTNF when combined with Act D is between 200 and 220 micrograms/m2/day x 5 for pediatric patients.[1]

References

  1. Phase I study of tumor necrosis factor-alpha and actinomycin D in pediatric patients with cancer: a Children's Cancer Group study. Seibel, N.L., Dinndorf, P.A., Bauer, M., Sondel, P.M., Hammond, G.D., Reaman, G.H. Journal of immunotherapy with emphasis on tumor immunology : official journal of the Society for Biological Therapy. (1994) [Pubmed]
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