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Induction therapy consisting of alternating cycles of ranimustine, vincristine, melphalan, dexamethasone and interferon alpha (ROAD-IN) and a randomized comparison of interferon alpha maintenance in multiple myeloma: a co-operative study in Japan.

Author(s): Wada M, Mizoguchi H, Kuriya SI, Taguchi H, Kawamura T, Maekawa I, Shimazaki C, Sato Y, Niho Y, Miyazaki T, Shibata A, Kitani T, Hamajima N, Ohno R

Affiliation(s): Department of Haematology, Tokyo Women's Medical University, Tokyo, Japan. wada@dh.twmu.ac.jp

Publication date & source: 2000-06, Br J Haematol., 109(4):805-14.

Publication type: Clinical Trial; Multicenter Study; Randomized Controlled Trial

This pilot study evaluated the efficacy of a new combination chemotherapy with a newly developed nitrosourea derivative ranimustine and evaluated the efficacy of interferon alpha (IFN-alpha) maintenance in previously untreated patients with multiple myeloma (MM). The induction therapy (ROAD-IN) was a 6-week regimen consisting of chemotherapy with ranimustine, vincristine (Oncovin), melphalan (Alkeran) and dexamethasone starting on day 1 and IFN-alpha, which was administered three times weekly for 3 weeks starting on day 22. This was repeated for three cycles. The responders were subsequently randomized into two groups that received or did not receive IFN-alpha as maintenance therapy. Of the 164 patients registered, 161 were evaluated. An objective response to induction therapy was seen in 75% of patients; complete remission (CR) in 38 (24%) and partial remission (PR) in 82 (51%). The median survival for all patients was 3.6 years from registration. The survival of responders (CR + PR) was significantly better than that of non-responders (median survival 4.3 years vs. 1.4 years; 7-year survival rate 32% vs. 9%; P < 0.0001). The IFN-alpha maintenance did not show any advantage for either response duration or survival. This pilot study demonstrated that a comparatively short period of induction therapy with the ROAD-IN regimen produced a rather high response rate and a similar survival rate to those achieved with other longer induction regimens, and that good responders to the initial therapy survived significantly longer than non-responders.

Page last updated: 2006-01-31

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