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Daily Low-Dose Subcutaneous Recombinant Interleukin-2 by Alternate Weekly Administration

Antitumor Activity and Immunomodulatory Effects

Tagliaferri, Pierosandro, M.D.; Barile, Carmen, M.D.; Caraglia, Michele, M.D.; Guarrasi, Rosario, M.D.; Morelli, Daniela, M.D.; Ricciardi, Beatrice, Ph.D.; Martignetti, Angelo, M.D.; Librera, Maria Teresa, M.D.; Matano, Elide, M.D.; Vecchia, Aldo Della, M.D.; Catalano, Giuseppe, M.D.; Famiani, Maurizio, M.D.; Palmieri, Giovannella, M.D.; Correale, Pierpaolo, M.D., Ph.D.; Bianco, Angelo Raffaele, M.D., Ph.D.

American Journal of Clinical Oncology: February 1998 - Volume 21 - Issue 1 - p 48-53
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A phase II clinical trial of subcutaneous recombinant Interleukin 2 (rIL-2) given by 5 days pulses followed by a 9 days rest has been performed in patients affected by renal cell carcinoma, malignant melanoma and colorectal cancer. A total of 25 patients entered the study, completed at least six courses of treatment, and were evaluable for toxicity and response to treatment. This schedule of subcutaneous rIL-2 was well tolerated and no World Health Organization grade 3 side effects were observed. A 33.3% response rate was recorded in patients affected by renal cell carcinoma, although no major responses were achieved in patients with malignant melanoma and colorectal cancer. A durable increase of natural killer activity retained by poeripheral blood mononuclear cells was demonstrated in these patients and was paralleled by increased serum levels of interferon γ and tumor necrosis factor a without changes of circulating interleukin-1d. It is concluded that this schedule of pulse administration of subcutaneous rIL-2 has antitumor activity in renal cell carcinoma and produces durable biomodulatory effects.

From Cattedra di Oncologia Medica (P.T., C.B., M.C., R.G., D.M., B.R., A.M., E.M., A.D.V., M.F., G.P., P.C., A.R.B.), Cattedra di Cardiologia (M.T.L.) Facoltà di Medicina, Università "Federico II" di Napoli, and Cattedra di Oncologia Medica, Facoltà di Medicina II Ateneo, Napoli, (G.C.).

Address correspondence and reprint requests to Dr. P. Tagliaferri, Cattedra di Oncologia Medica, Facoltà di Medicina, Università "Federico II" di Napoli, Via S. Pansini 5 80131, Naples Italy.

© Lippincott-Raven Publishers.