STOUGHTON, Mass., Nov. 27, 2023 (GLOBE NEWSWIRE) — Collegium Pharmaceutical, Inc. (Nasdaq:COLL), a leading, diversified specialty pharmaceutical company, today announced that the U.S. Court of Appeals for the Federal Circuit has upheld the judgment of the Patent Trial and Appeal Board (PTAB) in its final decision that Purdue’s ‘961 patent, which Purdue has claimed is infringed by Xtampza® ER, is invalid.
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