Claims for Patent: 11,142,549
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Summary for Patent: 11,142,549
| Title: | Ultra-pure agonists of guanylate cyclase C, method of making and using same |
| Abstract: | The invention provides processes of purifying a peptide including a GCC agonist sequence selected from the group consisting of SEQ ID NOs: 1-251 described herein. The processes include a solvent exchange step before a freeze-drying (lyophilization) step. |
| Inventor(s): | Shailubhai; Kunwar (Audubon, PA), Comiskey; Stephen (Doylestown, PA), Feng; Rong (Langhorne, PA), Bai; Juncai (North Augusta, SC), Zhang; Ruoping (North Augusta, SC), Jia; Jun (Shanghai, CN), Zhou; Junfeng (Shanghai, CN), Zhao; Qiao (Shanghai, CN), Zhang; Guoqing (Shanghai, CN) |
| Assignee: | Bausch Health Ireland Limited (Dublin, IE) |
| Application Number: | 16/921,450 |
| Patent Claims: |
1. An oral formulation comprising: (a) a purified peptide comprising the Guanylate Cyclase-C(GCC) agonist of amino acid sequence of SEQ ID NO: 1, wherein the purified peptide
comprises less than 0.05% trifluoroacetic acid (TFA) by weight of the purified peptide; and (b) one or more pharmaceutically acceptable excipients, wherein the one or more pharmaceutically acceptable excipients comprises microcrystalline cellulose.
2. The oral formulation of claim 1, comprising 0.01 mg to 10 mg of the purified peptide. 3. The oral formulation of claim 2, comprising 0.1 mg to 5 mg of the purified peptide. 4. The oral formulation of claim 3, comprising 3 mg of the purified peptide. 5. The oral formulation of claim 1, wherein the purified peptide has an average particle size of 80-120 .mu.m. 6. The oral formulation of claim 1, wherein the one or more pharmaceutically acceptable excipients further comprises magnesium stearate. |
