Protocol Title : A Randomised, open labelled study in anti ... - EME
Protocol Title : A Randomised, open labelled study in anti ... - EME
Protocol Title : A Randomised, open labelled study in anti ... - EME
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Statistical Methodology<br />
and Analysis<br />
!<br />
1. For the randomized comparison of Rituximab versus<br />
Tocilizumab <strong>in</strong> B-cell poor patients, the primary endpo<strong>in</strong>t<br />
will be analysed (by <strong>in</strong>tent to treat) us<strong>in</strong>g the chisquared<br />
test for the difference between two proportions.<br />
Patients switch<strong>in</strong>g treatment before 6 months because<br />
of lack of response will be considered as nonresponders<br />
at 6 months.<br />
2. For non-randomised comparisons between subgroups<br />
identified by B-cells <strong>in</strong> synovial biopsies, we will use the<br />
Fisher exact test compar<strong>in</strong>g (i) response to Rituximab <strong>in</strong><br />
B-cell poor patients compared to B-cell richThe<br />
def<strong>in</strong>ition of B-cell status will be clearly def<strong>in</strong>ed before<br />
the start of the trial.<br />
3. A test of <strong>in</strong>teraction between treatment and B-cell status<br />
(rich versus poor, exclud<strong>in</strong>g germ<strong>in</strong>al centre) will be<br />
based on a likelihood ratio tests between nested logistic<br />
regression models.<br />
Study: R4RA EudraCT: 2012-002535-28 7 / 34