Prognostic Value of Soluble Tumor Necrosis Factor Receptors 1 and 2 in Multiple Sclerosis Patients Treated with Interferon Beta-1b

Autor: C. Laske, N. Chatzimanolis, Joerg Kraus, H. Diehl, J. Tofighi, H Traupe, B. S. Kühne, T. Bregenzer, Manfred Kaps, Patrick Oschmann, R. Bauer
Rok vydání: 2001
Předmět:
Zdroj: European Neurology. 46:210-214
ISSN: 1421-9913
0014-3022
Popis: The objective of this study was to investigate the effect of interferon (IFN) beta-1b on the serum levels of soluble tumor necrosis factor receptor 1 (sTNF-R1) and sTNF-R2 in patients with multiple sclerosis (MS) in correlation with clinical and magnetic resonance image (MRI) activity. Serum samples were obtained every 3 months from 24 patients treated with 8 × 106 U of IFN beta-1b every other day (treatment group) and from 21 patients without any immunomodulatory therapy (control group) over a 15-month observation period. The cytokine receptor levels were assessed by ELISA. Cranial MRI was performed every 6 months to determine the burden of disease. In the treatment group, the MRI responders had significantly larger mean values for the area under the concentration-time curve of sTNF-R1 (p = 0.04) and sTNF-R2 (p = 0.01) when compared to the MRI nonresponders during the 15-month observation period. With regard to an increase in sTNF-R1 and -2 of more than 20% during the first 3 months of treatment, we observed a sensitivity of 33 and 58%, respectively, a specificity of 90 and 60%, respectively, and a positive predictive value of 80 and 64%, respectively, for MRI response during the 15-month observation period. A decrease in sTNF-R1 and -2 of more than 20% during the first 3 months of treatment had a sensitivity of 40 and 20%, respectively, a specificity of 100 and 100%, respectively, and a positive predictive value of 100 and 100%, respectively, for further MRI nonresponse (during the 15-month observation period). The present data suggest that assessment of sTNF-Rs may contribute to the identification of subgroups of patients who are likely to respond better than others to treatment with IFN beta-1b. This could help to establish a cost-effective prescription pattern for this expensive treatment, which is of importance for the future management of patients with MS.
Databáze: OpenAIRE