Protocol Number: 05-C-0185
Eligible participants must be 18 years of age or older with chronic, lymphomatous and acute forms of ATL, and must be infected with human T-cell lymphotropic virus type I (HTLV1). Patients will be treated with 9 mcg/kg/d of Denileukin difitox intravenously for 5 days every 2 weeks. Tumor response will be evaluated after two cycles of treatment. Stable or responding patients will continue treatment for a total of 12 months, with evaluations every four cycles of treatment. Patients will be treated for two cycles beyond a complete remission. The trial uses an optimal two-stage design targeting for a true response proportion of more than 30 percent. Nine patients will be treated initially, with expansion to 29 patients if a response is seen in 1 of the initial 9 patients treated. Treatment will be discontinued if a patient experiences serious side effects. A potential benefit is that a patient may undergo partial or complete remission. The research may not directly benefit participants, but the results may aid in the treatment of others.
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National Institutes of Health Clinical Center
Bethesda, Maryland 20892. Last update: 01/17/2009
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