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Phase II trials of high-dose interleukin-2 and lymphokine-activated killer cells in advanced breast carcinoma and carcinoma of the lung, ovary, and pancreas and other tumors.

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Extramural IL-2/LAK Working Group, Albert Einstein Cancer Center/Montefiore Medical Center, Bronx, New York.


Treatment with interleukin-2 (IL-2) used alone or in combination with lymphokine-activated killer (LAK) cells is known to be an active therapy for patients with advanced renal cell carcinoma and melanoma. To further explore the activity of IL-2/LAK cell therapy in patients with advanced cancer of various primary sites, the Extramural IL-2/LAK Working Group (ILWG) initiated two phase II trials of high-dose IL-2/LAK therapy: one in patients with advanced breast carcinoma, and one in patients with advanced cancer arising in other sites. Patients with advanced renal cell carcinoma, melanoma, colorectal carcinoma, and lymphoma (Hodgkin's and B-cell non-Hodgkin's) were not eligible for the latter trial, but were treated on other ILWG trials that have been reported previously. Sixty-nine patients received high-dose IL-2 (600,000 IU/kg administered by a 15-min intravenous infusion every 8 h) on days 1-5 and days 11-15. Leukapheresis was performed for collection and ex vivo expansion of LAK cells on days 7-10, and the LAK cells were reinfused on days 11, 12, and 14. The studies were designed to determine whether treatment with IL-2/LAK resulted in at least a 40% response rate, a level of activity that was believed to be sufficient to justify the toxicity and cost of IL-2/LAK therapy. An adequate number of patients with carcinoma of the breast (N = 12), pancreas (N = 8), ovary (N = 7), and lung (non-small cell; N = 6) were accrued to assess response; most of these patients had prior chemotherapy that had failed.(ABSTRACT TRUNCATED AT 250 WORDS)

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