Table 12.
Active treatment | Study design | Conversion to CDMS versus placebo | Notes | |
---|---|---|---|---|
Comi et al. (19) (REFLEX) |
Subcutaneous interferon beta 1-a (44 μg three times a week or once a week) | Primary endpoint, McDonald MS (2005 criteria); secondary endpoint, CDMS | Three times a week, adjusted HR 0.48 (95% CI 0.31–0.73 p<0.0004) once a week, adjusted HR 0.53 (95% CI 0.35–0.79; p=0.0023) | Monofocal presentation, 54%; steroid treatment, 71% |
Kapsos et al. (20) (BENEFIT) |
Subcutaneous interferon beta 1-b (250 μg every other day) | Primary endpoint, CDMS; secondary endpoint, McDonald MS (2001 criteria) | Adjusted HR 0.50 (95% CI 0.36–0.70; p<0.0001) | Similar conversion to McDonald MS in placebo group; similar risk reduction for McDonald MS and CDMS; monofocal presentation, 53%; steroid treatment, 71% |
Jacobs et al. (21) and O’Connor et al. (22) (CHAMPS) |
Intramuscular interferon beta-1a (30 μg once a week) | Primary endpoint, CDMS | Rate ratio 0.56 (95% CI 0.38–0.81; p=0.002); adjusted rate ratio 0.49 (95% CI 0.33–0.73; p<0.001) | Monofocal presentation 70%; steroid treatment, 100% |
Comi et al. (23) (PRECISE) |
Subcutaneous glatiramer acetate (20 mg per day) | Primary endpoint, CDMS | HR 0.55 (95% CI 0.40–0.77; p=0.0005) | Monofocal presentation, 100%; steroid treatment, 61% |
Comi et al. (24) (ETOMS) |
Subcutaneous interferon beta 1-a (22 μg once a week) | Primary endpoint, CDMS | Odds ratio 0.61 (95% CI 0.37–0.99: p=0.045) | Monofocal presentation, 61%; steroid treatment, 64% |
CDMS: clinically definite multiple sclerosis; REFLEX: REbif FLEXible dosing in early MS; HR: hazard ratio; MS: multiple sclerosis