| CPC A61K 38/08 (2013.01) [A61K 9/1635 (2013.01); A61K 9/1652 (2013.01); A61K 9/282 (2013.01); A61K 9/2846 (2013.01); A61K 9/2893 (2013.01); A61P 1/04 (2018.01)] | 17 Claims |

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1. An oral composition comprising an effective amount of a peptide that is larazotide or a larazotide derivative, or salt thereof, contained within a biodegradable or erodible polymer matrix comprising microcrystalline cellulose that provides for sustained release of the peptide in simulated intestinal fluid having a pH of 7.0 for at least about 120 minutes;
wherein the composition further comprises an enteric coating that is resistant to dissolution in simulated gastric fluid or simulated intestinal fluid having a pH of 5.5 or less, wherein the composition provides for less than about 25% release of the peptide after two hours in said simulated gastric fluid or simulated intestinal fluid.
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