What Is Larazotide? The One “Leaky Gut” Peptide That Reached a Phase III Trial
Larazotide (AT-1001) is an eight-amino-acid peptide designed to tighten the gut’s molecular seams by antagonising the zonulin pathway. It is the only “leaky gut” molecule with a serious clinical dossier — and its largest trial is also the most honest thing about it.