Objective - To evaluate and compare the long-term efficacy and safety of two different beta-interferon preparations (IFN-beta-1a vs IFN-beta-1b). Material and Methods - Two parallel outpatient groups with relapsing-remitting multiple sclerosis (RRMS), according to Poser criteria, were treated with either intramuscular IFN-beta-1a 30 mu g (group A, n = 62) or subcutaneous IFN-beta-1b 250 mu g (group B, n = 64). Results - A statistically significant reduction was seen in the relapse rate (P < 0.0001) in both groups. No significant difference was found between the two groups (P = 0.43). After 6 years of therapy, the mean Expanded Disability Status Scale score was 3.22 +/- 1.47 (Delta 1.03 +/- 1.35) in group A and 3.34 +/- 1.47 (Delta 0.97 +/- 1.47) in group B (P = 0.47). Conclusion - Our study results suggest that the efficacy of IFN-beta-1a 30 mu g once weekly and SC IFN-beta-1b 250 mu g every other day is similar. Both IFN-beta-1a and IFN-beta-1b are effective in slowing disability progression
Effects of interferon beta-1a and -1b over time: 6-year results of an observational head-to-head study
PATTI, Francesco;
2006-01-01
Abstract
Objective - To evaluate and compare the long-term efficacy and safety of two different beta-interferon preparations (IFN-beta-1a vs IFN-beta-1b). Material and Methods - Two parallel outpatient groups with relapsing-remitting multiple sclerosis (RRMS), according to Poser criteria, were treated with either intramuscular IFN-beta-1a 30 mu g (group A, n = 62) or subcutaneous IFN-beta-1b 250 mu g (group B, n = 64). Results - A statistically significant reduction was seen in the relapse rate (P < 0.0001) in both groups. No significant difference was found between the two groups (P = 0.43). After 6 years of therapy, the mean Expanded Disability Status Scale score was 3.22 +/- 1.47 (Delta 1.03 +/- 1.35) in group A and 3.34 +/- 1.47 (Delta 0.97 +/- 1.47) in group B (P = 0.47). Conclusion - Our study results suggest that the efficacy of IFN-beta-1a 30 mu g once weekly and SC IFN-beta-1b 250 mu g every other day is similar. Both IFN-beta-1a and IFN-beta-1b are effective in slowing disability progressionFile | Dimensione | Formato | |
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