The study is one of three late-stage patient tests by Pfizer to get approval of Lyrica for other use, such as long-term daily use for limiting fibromyalgia pain. A shorter-acting version of the drug to be taken twice daily is approved in 120 countries for treating pain flare-ups.
After 12 weeks, 54 percent of the 121 patients given Lyrica and 71 percent of placebo patients had much, if not all, of their pain return. Lyrica stopped providing significant pain relief within 58 days, versus 22 days for placebo pills.
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