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Table 2 Study outcomes

From: Interferon beta 1b following natalizumab discontinuation: one year, randomized, prospective, pilot trial

 

IFNB (n=9)

NTZ (n=10)

p-value

Median time to first on study relapse (primary endpoint)*

103 days

-

0.125

Number of relapses^

3

0

0.447

Proportion of relapse free patients (number)°

78% (7)

100% (10)

0.206

Severity of relapses:

   

- EDSS score change, median (range)

0.5 (0.5 -1.5)

-

-

Number of patients with 3 months confirmed disability progression°:

   

(1 patient showed a disability progression of 1.5 points 1 month after an attack occurred during month 11 of study)

0

0

1

Number of nT2L, median (range) ^

   

- at month 3

0.5 (0–2)

0 (0–1)

0.146

- at month 6

1.5 (0–9)

0 (0–2)

0.043

- at month 9

0.5 (0–6)

0 (0)

0.105

- at month 12

0 (0–12)

0 (0)

0.234

Number of Gd+L, median (range) ^

   

- at month 3

0 (0–1)

0 (0)

0.696

- at month 6

0 (0–5)

0 (0)

0.442

- at month 9

0 (0–1)

0 (0)

0.694

- at month 12

0 (0–2)

0 (0–1)

0.694

Adverse events

   

- number of infection, median (range) ^

0

1

0.140

- proportion of patients with at least 1 infection °

3 (33%)

7 (70%)

0.179

- number of patients with injection site reactions

4

n.a.

-

  1. * Log-rank test ; ^U-Mann Whitney test; ° two-sided exact Fisher test.