Treatment for adult T-cell leukemia

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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 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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