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Primal Platform

Scientific knowledge base

Classify peptides scientifically.

Search structured peptide profiles by molecule class, research area, evidence level, development stage and regulatory status. Product listings and scientific classification remain deliberately separate.

This database is an information and classification system. It provides no dosing, sourcing or administration recommendations.

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4 / 32

P-030 Approval and post-marketing data

Cyclic peptide

Linaclotide

Linaclotide; Constella; Linzess

Linaclotide is a disulfide-rich peptide used in authorised medicines for defined gastrointestinal indications.

Regulatory status
Authorised in the EU/multiple markets
Scientifically reviewed
01.08.2026
P-031 Approval and post-marketing data

Cyclic peptide

Plecanatide

Plecanatide; Trulance

Plecanatide is a uroguanylin analogue used in a U.S.-authorised medicine for defined gastrointestinal indications.

Regulatory status
Specifically approved in the U.S.
Scientifically reviewed
01.08.2026