PeptideSearch

Larazotide

Tested in people

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It has been tested in people, but it is not an approved medicine. The studies are usually small.

Compiled and reviewed by the PeptideSearch Editorial Team · Status checked 2026-08-04

Also called AT-1001 / Larazotide acetate / INN-202

Studied for tightening the gut lining in celiac disease. Reached late-stage human trials but missed its main goal.

Official status: Not nominated for 503A compounding · Checked 2026-08-04

Can a doctor prescribe this?

Small pharmacy (503A)
Never put forward to FDA
Large outsourcing facility (503B)
Never put forward to FDA

Investigational. Not approved and not on the compounding list.

503A is a pharmacy making a single prescription for one patient. 503B is a facility making batches. They are governed by separate lists. Where a category is shown, it is a position on the FDA's list of substances that have been put forward and are still being worked through — not the final list, which is set by rulemaking. Category 1 means the FDA does not plan to act against a pharmacy that makes it while the review runs.

Lab suppliers we list: 2

Doses used in research

Taken word for word from the studies and trials listed on this page. This is not a recommendation and not a dose for anyone to take.

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