I denne undersøgelse var de fleste psoriasis artrit patienter behandlet med Enbrel i stand til at rejse en effektivt B- celle immunrespons mod pneumokok polysakkarid vaccine, men aggregattitrene var moderat lavere, og få patienter havde dobbelt stigning i titrene i sammenligning med patienter, som ikke fik Enbrel.
In this study most psoriatic arthritis patients receiving Enbrel were able to mount effective B-cell immune response to pneumococcal polysaccharide vaccine, but titers in aggregate were moderately lower and few patients had two-fold rises in titers compared to patients not receiving Enbrel.