Mean results for the primary endpoint, ACR20, from the five originator studies conducted in patients with active rheumatoid arthritis who failed previous disease-modifying anti-rheumatic drug (DMARD) therapy comparing anti-TNFα’s in combination with methotrexate versus methotrexate alone

ProductPlaceboActiveDifference
Certolizumab pegol [33]14%59%45%
Adalimumab [39]13.3%65.1%41.8%
Golimumab [46]28%60%32%
Infliximab [40]17%48%31%
Etanercept [32]11%59%48%