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Clinical Peptide Medicines

Plecanatide

Also referenced as: Trulance

A uroguanylin-related intestinal peptide used for adult constipation disorders.

Evidence grade
AStrong Clinical Evidence

Strong Clinical Evidence

Regulatory status
FDA Approved for Specific Indication

Trulance is FDA-approved for adult chronic idiopathic constipation and IBS-C, not general gut healing.

Human data
Yes

Registered clinical trials exist

Last reviewed
October 27, 2026

Overview

A uroguanylin-related intestinal peptide used for adult constipation disorders.

Trulance is FDA-approved for adult chronic idiopathic constipation and IBS-C, not general gut healing.

Contraindicated below age 6 and in mechanical obstruction; the label advises avoiding use below age 18.

Why It's Being Studied

  • Chronic idiopathic constipation
  • IBS with constipation

Mechanism of Action

In plain language

Guanylate cyclase-C activation increases fluid secretion in the intestinal lumen and supports transit.

Technical detail

Guanylate cyclase-C activation increases fluid secretion in the intestinal lumen and supports transit. Contraindicated below age 6 and in mechanical obstruction; the label advises avoiding use below age 18.

Interactive diagram

From molecular target to clinical evidence

Tap each stage to see what happens.

Molecular target: Identify the receptor, enzyme, microbial membrane or binding site for the particular compound.

Background: Clinical Peptide Medicines

Clinical peptide medicines include endocrine treatments, antimicrobial drugs, receptor blockers and targeted diagnostic or cancer agents. They do not share one mechanism or one set of indications.

An approval belongs to a specific medicine and indication. A diagnostic tracer, an antibiotic and a hormone are not interchangeable wellness products; read each profile's own mechanism and prescribing source.

Research Areas & Routes Studied

Areas studied
  • Chronic idiopathic constipation
  • IBS with constipation
Routes used in research
  • Oral approved tablet

Evidence Summary

Placebo-controlled trials support bowel-response endpoints in chronic idiopathic constipation and IBS-C.

Evidence pyramid

Higher tiers carry more weight. Filled tiers have evidence for Plecanatide; tap to read it.

Human clinical trials
  • Placebo-controlled trials support bowel-response endpoints in chronic idiopathic constipation and IBS-C.
Source breakdown

1 cited sources.

  • Prescribing label1

Human clinical evidence

  • Placebo-controlled trials support bowel-response endpoints in chronic idiopathic constipation and IBS-C.

Reported Adverse Events in Research

  • Diarrhea and dehydration are key risks; the label has a boxed pediatric warning.

Limitations of Current Evidence

  • Contraindicated below age 6 and in mechanical obstruction; the label advises avoiding use below age 18.
  • Findings apply to the product, route and population studied; they do not establish benefits or safety for unrelated wellness uses or research-vial products.

How to Read This Research

Questions to ask
  • Is this a single molecule or a family of medicines?
  • Is the use diagnostic, therapeutic or investigational?
  • Does the quoted outcome match the exact product, formulation and population?
Reading tips
  • Use the compound-specific mechanism above; this diagram describes drug development, not a shared biological pathway.
  • Historical approval, present availability and off-label use are distinct questions.
  • For radiopharmaceuticals and hospital medicines, specialist handling is part of the treatment context.
Indication
The condition and population for which a medicine is approved.
Antagonist
A compound that blocks activity at a receptor.
Radiopharmaceutical
A medicine containing a radioactive isotope for imaging or treatment.

Compare With Other Compounds

Compare side by side
PlecanatideTrofinetide
Evidence gradeA — Strong Clinical EvidenceB — Moderate Human Evidence
Regulatory statusFDA Approved for Specific IndicationFDA Approved for Specific Indication
Human dataYesYes
Clinical trialsRegistered trials existRegistered trials exist
Research routesOral approved tabletOral approved medicine
Cited sources12
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Frequently Asked Questions

Research References

  • Prescribing label

    Plecanatide — prescribing label

    View Source
This page is an educational research summary. It is not medical advice, does not recommend human use, and does not provide individualised dosing. Many compounds discussed here are research use only and are not approved medicines.