I en dobbeltblind, placebo - kontrolleret klinisk undersøgelse med voksne patienter med psoriasis artrit, modtog 184 af patienterne også en multivalent pneumokok polysakkarid vaccine i uge 4.
In a double blind, placebo controlled, randomised clinical study in adult patients with psoriatic arthritis 184 patients also received a multivalent pneumococcal polysaccharide vaccine at week 4.