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  • Title: Treatment for adult T-cell leukemia.
    Author: Hanada S, Utsunomiya A, Suzuki S, Uozumi K, Makino T, Arima T.
    Journal: Cancer Chemother Pharmacol; 1997; 40 Suppl():S47-50. PubMed ID: 9272134.
    Abstract:
    The purpose of this study was to clarify the clinical efficacy of multidrug chemotherapy for aggressive adult T-cell leukemia (ATL). We report the therapeutic results of treatment of patients with aggressive ATL undertaken between 1986 and 1995. A total of 120 newly diagnosed patients with a performance status of 0-3 and aged < 70 years at diagnosis were entered into the study. Clinical features, including clinical subtypes, serum levels of lactate dehydrogenase and blood urea nitrogen, the response to chemotherapy, and doses of individual chemotherapeutic agents, were evaluated. Of the 120 patients enrolled, 97 had acute-type and 23 lymphoma-type ATL. The complete response rate and median survival of these patients were 25.3% and 9 months, respectively. The 2- and 5-year survival rates were 18.4% and 8%, respectively, and five patients have been alive for > 5 years and are disease-free. These long-term survivors had good prognostic factors at diagnosis. There was no correlation between the doses of the various chemotherapeutic agents and the survival duration. These results indicate that ordinary combined chemotherapy has limited ability to improve the prognosis of aggressive ATL. Our previous study indicated that expression of P-glycoprotein in ATL cells might be involved in resistance to chemotherapeutic agents, particularly doxorubicin, vincristine, and etoposide. Therefore, new therapeutic strategies will be necessary to improve the prognosis of ATL patients.
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