Maintenance therapy with interferon alfa 2b in patients with diffuse large cell lymphoma

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Abstract
Forty-eight consecutive patients with diffuse large cell lymphoma (DLCL) in complete remission (CR) after conventional chemotherapy were enrolled in a prospective clinical trial. The maintenance therapy was a random either nothing or interferon alfa 2b (IFN) 5.0 MU three times a week for one year. The median duration of CR in the patients treated with IFN has not been reached. After five years 60% of patients remain in CR compared to the control group who had a median CR of 40 months (pp <0.001). Maintenance therapy with IFN has been beneficial in patients with DLCL with improvement of duration of CR and survival without the excessive toxicity of most common third generation regimen chemotherapy. We felt that IFN could be explored in most controlled clinical trials in patients with DLCL in CR after conventional chemotherapy.