Comparison
Cetrorelix vs. Plecanatid
Two peptides side-by-side — identity, evidence base, legal status and known adverse events.
Identity
Category
Research other
Research other
CAS no.
120287-85-6
467426-54-6
Molecular weight
1431.06 g/mol
1682 g/mol
Half-life
no data
no data
Sequence
no data
no data
Mechanism of action
Cetrorelix
Cetrorelix competitively and immediately blocks the pituitary GnRH receptor, rapidly suppressing LH and FSH release — without the initial hormone surge ('flare') of GnRH agonists.
Plecanatid
Plecanatide is structurally analogous to the body's own uroguanylin and, like it, activates the GC-C receptor at the gut surface, raising cGMP and fluid secretion. Its pH-dependent activity shifts the effect toward the proximal small intestine.
Evidence base
Highest evidence
Human RCT
Human RCT
Studies
0
0
of which in humans
0
0
Effects recorded
2
2
Open conflicts
0
1
Documented adverse events
1
1
Legal status
Full entries
Frequently asked questions
- What is the difference between Cetrorelix and Plecanatid?
- Cetrorelix is classified as "Research other", while Plecanatid is classified as "Research other". Cetrorelix: Cetrorelix is a synthetic decapeptide and GnRH antagonist. It is used in assisted reproduction (IVF) to prevent a premature LH surge during controlled ovarian stimulation. Plecanatid: Plecanatide is a 16-amino-acid analog of the body's own uroguanylin and a guanylate cyclase-C (GC-C) agonist. It is approved for chronic idiopathic constipation (CIC) and IBS with constipation (IBS-C). This page contrasts both neutrally and source-based — with no usage or dosing recommendation.
- Which peptide is better supported by science, Cetrorelix or Plecanatid?
- The highest available evidence level is "Human RCT" for Cetrorelix and "Human RCT" for Plecanatid. A higher evidence level means more robust data, but says nothing about suitability for an individual. The full body of evidence is on each peptide's own page.
- What is the legal status of Cetrorelix and Plecanatid in Germany and the United States?
- Germany: Cetrorelix — Prescription, Plecanatid — Unapproved. United States: Cetrorelix — Prescription, Plecanatid — Prescription. These are factual summaries with source and review date on the individual pages.