Pfizer arthritis drug probe by Health Canada for possible risks Pfizer arthritis drug probe by Health Canada for possible risks
(REUTERS) Canada’s health regulator is launching a probe into Pfizer’s arthritis drug, Xeljanz, after a trial by the company identified an increased risk of... Pfizer arthritis drug probe by Health Canada for possible risks

(REUTERS) Canada’s health regulator is launching a probe into Pfizer’s arthritis drug, Xeljanz, after a trial by the company identified an increased risk of serious heart-related issues and cancer in the participants.

The trial investigated the long-term safety of Xeljanz at two doses in patients with rheumatoid arthritis, who are at least 50 years old and have at least one cardiovascular risk factor, the regulator said.

Xeljanz, which brought in worldwide sales of $2.44 billion for Pfizer in 2020, is approved in Canada for some patients of rheumatoid arthritis, psoriatic arthritis, and ulcerative colitis.

Health Canada said it had conducted a safety review of the drug in 2019 after a trial identified an increased risk of blood clots in the lungs and death.

Xeljanz’s current Canadian label carries warnings and precautions for cancer and information on heart attacks, the agency said.

Benedict Rhodes

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