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Abstract
43 patients with the acute or lymphoma type ATL were treated with the new combination chemotherapy (RCM protocol: response-oriented cyclic multidrug protocol) between January 1989 and December 1991. Complete response (CR) and partial response (PR) were achieved in 20.9% and 65.1% of all treated patients respectively. The median duration of survival was 6.0 months. The survival duration of patients with a high serum lactate dehydrogenase (LDH) value (≥ 1,000 unit) and/or a poor performance status (PS) (PS 3 or 4) were also improved but not in patients with a severe leukocytosis (≥ 35,000/μl). Toxicity was mild (grade 1 or 2) except hematologic toxicity in 4 patients (9.3%) and alopecia in one patient (2.3%). In spite of many patients with a poor PS (PS 3 or 4), our chemotherapeutic results are equal or superior to other previous reports. It seems that response-oriented chemotherapy is suitable for the ATL patients with poor prognostic factors. These results indicate that the RCM protocol is very useful as the first choice chemotherapy for the acute or lymphoma type ATL.