Ironwood Pharmaceuticals, Inc (IRWD US)'s sole marketed drug Linzess is the #1 prescribed branded treatment in the U.S. for adults with IBS-C/CIC with ~4M unique patients since launch.
First commercialized in December 2012, Linzess achieved blockbuster drug status in 2021. The earliest licensed entry of any generic Linzess in the U.S. is expected only in March 2029.
The company’s potential drug candidate IW-3300 is in phase 1 trial for interstitial cystitis/bladder pain syndrome (IC/BPS). Recently, Ironwood has shared positive findings from the study.
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