Abstract

Elevated tumor necrosis factor (TNF)-α levels are associated with poor prognosis in patients with multiple myeloma (MM). Enbrel is a TNF antagonist fusion protein consisting of the extracellular, ligand-binding domain of the human p75 TNF receptor linked to the Fc portion of human IgG1. Ten patients with refractory MM were treated with Enbrel 25 mg s.c twice weekly for a minimum of eight median age was 63 years (range, 43–76). The total number of Enbrel doses was 191 (median 16; range, 3–55). TNFα plasma levels increased significantly during treatment with Enbrel. No objective response occurred. Acceleration of disease occurred in four patients. While well-tolerated, Enbrel did not have anti-myeloma activity as administered on this study.

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