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Last Updated: March 24, 2025

Claims for Patent: 7,371,727

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Summary for Patent: 7,371,727

Title:	Methods and compositions for the treatment of gastrointestinal disorders
Abstract:	The present invention features compositions and related methods for treating IBS and other gastrointestinal disorders and conditions (e.g., gastrointestinal motility disorders, functional gastrointestinal disorders, gastroesophageal reflux disease (GERD), duodenogastric reflux, Crohn's disease, ulcerative colitis, Inflammatory bowel disease, functional heartburn, dyspepsia (including functional dyspepsia or nonulcer dyspepsia), gastroparesis, chronic intestinal pseudo-obstruction (or colonic pseudo-obstruction), and disorders and conditions associated with constipation, e.g., constipation associated with use of opiate pain killers, post-surgical constipation (post-operative ileus), and constipation associated with neuropathic disorders as well as other conditions and disorders using peptides and other agents that activate the guanylate cyclase C (GC-C) receptor.
Inventor(s):	Currie; Mark G. (Sterling, MA), Mahajan-Miklos; Shalina (Stanford, CA), Fretzen; Angelika (Somerville, MA), Sun; Li Jing (New York, NY), Norman; Thea (San Diego, CA), Milne; G. Todd (Brookline, MA)
Assignee:	Microbia, Inc. (Cambridge, MA)
Application Number:	10/899,806
Patent Litigation and PTAB cases:	See patent lawsuits and PTAB cases for patent 7,371,727
Patent Claims:	1. A method for preparing a purified peptide comprising SEQ ID NO:3, the method comprising: (a) chemically synthesizing a peptide comprising the amino acid sequence of SEQ ID NO:3; and (b) purifying the peptide. 2. The method of claim 1 wherein the peptide consists essentially of the amino acid sequence of SEQ ID NO:3. 3. The method of claim 1 wherein the peptide consists of the amino acid sequence of SEQ ID NO:3. 4. The method of claim 1 wherein the chemical synthesis step comprises solid phase chemical synthesis. 5. The method of claim 1 wherein the purification step comprises reverse phase chromatography. 6. A purified peptide prepared by the method of claim 1.

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