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A randomized clinical trial comparing melphalan/prednisone with or without interferon alfa-2b in newly diagnosed
M R Cooper1, K Dear, O R McIntyre
1Bowman Gray School of Medicine/Wake Forest University, Winston-Salem, NC.
Purpose:
This clinical trial was designed to compare the effectiveness of the standard melphalan and prednisone regimen to that of melphalan, prednisone, and interferon in patients with untreated multiple myeloma.
Patients And Methods:
Between October 1985 and March 1988, 278 patients were accrued to a multi-institutional, randomized clinical trial. Responding patients were treated for 2 years before termination of therapy.
Results:
After a median follow-up of 23 months, the overall remission rate for the melphalan/prednisone treatment group was 44% compared with 33% for the group receiving melphalan/prednisone/interferon alfa-2b. The durations of response and survival were identical for the two treatment groups. Median survival was 3.17 years on melphalan/prednisone treatment and 3.0 years on melphalan/prednisone/interferon alfa-2b treatment. Both hematologic and nonhematologic toxicities were greater in the melphalan/prednisone/interferon alfa-2b treatment group, but were usually of a mild or moderate degree and did not interfere with the completion of therapy. The frequency of deaths in the two treatment groups attributable to the treatment itself was similar.
Conclusion:
This study shows no advantage to the concomitant delivery of interferon alfa-2b with standard melphalan and prednisone as initial treatment for patients with multiple myeloma.