Mortality Signal For Pfizer's Xeljanz In Rheumatoid Arthritis Puts A Damper On JAK Class

Analyst speculates that risk of pulmonary embolism for a higher unapproved dose of Xeljanz in arthritis could trigger a label change for the same regimen in the drug's ulcerative colitis indication.

"Uncertainty Ahead” sign on a background of blue sky with clouds

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