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Surge in lawsuits against Pfizer by women using Lipitor


Lawsuits by US women who say that taking Lipitor gave them type-2 diabetes have shot up from 56 to almost 1,000. — Photo: Bloomberg

New York: Pharmaceutical giant Pfizer is facing a mounting wave of lawsuits by women who allege that the company knew about possible serious side effects of its blockbuster anti-cholesterol drug Lipitor but never properly warned the public.

In the past five months, a Reuters review of federal court filings shows, lawsuits by US women who say that taking Lipitor gave them type-2 diabetes have shot up from 56 to almost 1,000.

Lawsuits began to be filed not long after the Food and Drug Administration in 2012 warned that Lipitor and other statins had been linked to incidents of memory loss and a "small increased risk" of diabetes. According to plaintiffs' lawyers, women face a higher risk than men of developing diabetes from using Lipitor, and gain fewer benefits.

The recent spike in lawsuits followed a decision by a federal judicial panel to consolidate all Lipitor diabetes lawsuits from around the country into a single Federal courtroom in Charleston, South Carolina. Pfizer opposed the consolidation, arguing it would prompt copycat filings. The first case is scheduled to be tried next July.

Pfizer said in a statement that it denied liability and would fight the lawsuits.

It is not uncommon for a drugmaker to get hit with thousands of lawsuits over its products after the FDA orders a label change alerting users to newly found risks. Takeda Pharmaceutical, for instance, is facing more than 3,500 federal lawsuits since 2011 when the FDA ordered it to update the label on its diabetes drug Actos to warn about bladder cancer. Takeda has denied liability.

But several factors set the Lipitor diabetes cases apart from those against other drug companies. For one, Lipitor is the best-selling prescription drug of all time, racking up global sales of more than $130 billion since it went on the market in 1996. More than 29 million patients in the United States have been prescribed the drug, suggesting there is a vast pool of potential plaintiffs.  On the other hand, potentially complicating matters for plaintiffs, the FDA emphasized the benefits of statins even as it warned of the risks.

When the labeling change was released in 2012, a top FDA official underscored that the agency still stood behind the drugs: "Clearly, we think that the heart benefit of statins outweighs this small increased risk (for diabetes)," Amy Egan, a deputy director for safety at the agency's Division of Metabolism and Endocrinology, said in a statement at the time.

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