Journal
CLINICAL LYMPHOMA
Volume 2, Issue 4, Pages 222-228Publisher
CIG MEDIA GROUP, LP
DOI: 10.3816/CLM.2002.n.003
Keywords
cutaneous T-cell lymphoma; denileukin diftitox; fusion protein; interleukin-2 receptor; quality of life; pruritus
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Cutaneous T-cell lymphoma (CTCL) can be associated with painful, pruritic, disfiguring: lesions. As part of a multicenter, randomized phase III trial in patients with heavily pretreated advanced and/or recurrent CTCL, the effects of an interleukin-2 receptor-targeted fusion protein, denileukin diftitox (DAB(389)IL-2, ONTAK(R)), on patient-rated overall quality of life (QOL), skin appearance, and pruritus severity were evaluated. A total of 71 patients with stage IB-IVA CTCL received intravenous denileukin diftitox 9 mug/kg/day or 18 mug/kg/day over 15-60 minutes for 5 consecutive days on an outpatient basis; cycles were planned for every 21 days for a total of 8 cycles over 6 months. Prior to each treatment cycle, patients were evaluated for disease response and were asked to self-rate their overall QOL via the Functional Assessment of Cancer Therapy-General (FACT-G) questionnaire, skin appearance (7-point scale), and pruritus severity (10-cm visual analogue scale). Composite FACT-G and most individual subscale scores (physical, social/family, emotional, and functional well being) in documented responders (n = 21) gradually increased during the study period, generally reaching statistical significance (P < 0.05) by cycle 3, and were significantly (P <= 0.041) higher than the scores of nonresponders at endpoint. Additionally for responders, assessments of skin severity and pruritus severity showed significant (P <= 0.05) improvements at study endpoint compared with baseline. Adverse transfusion-related events (eg, hypersensitivity reactions, flu-like syndrome) were common during cycles 1 and 2, and vascular-leak syndrome occurred in 25% of patients. Denileukin diftitox was not associated with any clinically significant myelosuppression. Heavily pretreated patients with advanced and/or recurrent CTCL who responded to denileukin diffitox therapy showed significant improvements in self-rated overall QOL, skin appearance, and pruritus severity.
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