Initial treatment with the radioimmunotherapy Zevalin, also called 90-yttrium ibritumomab tiuxetan, allowed 35% of 59 patients with follicular non-Hodgkin lymphoma to have long-lasting responses, according to a study published in the Journal of Clinical Oncology. Patients' overall response rate at six months was 86%, and 41% of patients showed complete response. "In our opinion, radioimmunotherapy is a particularly attractive therapy for older patients, patients with significant comorbidity, or patients who refuse chemotherapy," researchers said.

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