Pfizer Inc.'s Xeljanz (tofacitinib) is set to become the second JAK inhibitor to reach the EU rheumatoid arthritis market after Eli Lilly & Co.Olumiant (baricitinib) - but the Pfizer pill's failure twice to win EMA backing in 2013, because of safety concerns, could dog its take-up in the region.
Pricing will also play a key role in the uptake of JAK inhibitors, especially because of the entry of anti-TNF...






