Abstract
The cyclophosphamide, doxorubicin, vincristine, and prednisolone (CHOP) regimen, containing doxorubicin (DXR), which is a key drug for aggressive non-Hodgkin lymphoma (NHL), is a standard chemotherapeutic regimen; however, its administration in elderly patients is often intolerable. Pirarubicin (tetrahydropyranyl adriamycin [THP]) is an anthracycline developed in Japan. We have conducted a phase II trial of a full-dose THP-COP (modified CHOP regimen with DXR replaced by THP) regimen for elderly patients with newly diagnosed, advanced-stage, aggressive NHL. Patients aged 70-79 years old with previously untreated NHL according to the Working Formulation (D through H and J), disease stage I with a bulky mass or stage II-IV, and performance status of 0-1 were eligible. The THP-COP regimen, which consisted of 750-mg/m2 cyclophosphamide, 50-mg/m2 THP, 1.4-mg/m2 vincristine (capped at 2.0 mg) on day 1, and 100-mg prednisolone daily on days 1 to 5, was delivered every 3 weeks for 6 cycles. The primary endpoint was complete response (CR) rate. Twenty-nine patients were enrolled in the study. The CR rate was 65.5% (95% confidence interval, 45.7-82.1%). The 3-year failure-free and overall survival rates were 54.1% and 53.9%, respectively. The most frequent observed grade 3 or 4 toxicity was neutropenia, which occurred in 80% of the patients. Grade 3 cardiac dysfunction was observed in one patient. The full-dose THP-COP regimen exhibited similar efficacy and safety, and a tendency for less cardiac toxicity, when compared with the standard CHOP regimen in elderly Japanese patients with newly diagnosed, advanced-stage, aggressive NHL.
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More From: Journal of Clinical and Experimental Hematopathology
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