Side-by-Side Comparison · 2026

Apelin-17 vs Elabela

Apelin-17 vs Elabela — mechanism, half-life, dosing, and research status compared. Which is right for your protocol?

Apelin-17
Cardiovascular Peptide

Apelin-17 is a 17-amino acid C-terminal fragment of the prepro-apelin precursor that binds and activates the APJ receptor (now APLNR) with the highest potency of all naturally occurring apelin isoforms. While apelin-13 is the best-characterized isoform, apelin-17 shows greater re...

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Elabela
Cardiovascular Peptide

Elabela (also called Apela or Toddler) is the second endogenous peptide ligand for the APJ receptor, discovered in 2013 independently through two approaches: as an essential zebrafish cardiac development factor (Toddler) and as a novel human APJ ligand (Elabela). Unlike apelin pe...

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Key Parameters
Parameter Apelin-17 Elabela
Category Cardiovascular Peptide Cardiovascular Peptide
Research Preclinical / Phase I Research
Half-Life ~3-5 minutes IV (longer than apelin-13) Short (minutes, estimated)
Typical Dose 30-100 nmol/kg/min (IV infusion, clinical) 5-500 nmol/kg (animal)
Frequency Acute infusion protocols Variable
Route IV infusion (clinical studies); SC under investigation Subcutaneous, Intravenous
FDA Status Investigational (Phase I/II) Not approved

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Frequently Asked Questions
What is the difference between Apelin-17 and Elabela?
Apelin-17: Apelin-17 is a 17-amino acid C-terminal fragment of the prepro-apelin precursor that binds and activates the APJ receptor (now APLNR) with the highest potency of all naturally occurring apelin isoform... Elabela: Elabela (also called Apela or Toddler) is the second endogenous peptide ligand for the APJ receptor, discovered in 2013 independently through two approaches: as an essential zebrafish cardiac developm...
Which has a longer half-life, Apelin-17 or Elabela?
Apelin-17 half-life: ~3-5 minutes IV (longer than apelin-13). Elabela half-life: Short (minutes, estimated).
Can you stack Apelin-17 and Elabela?
Apelin-17 and Elabela are in the same category and used together in research protocols. Always consult relevant literature and follow appropriate guidelines.

For research use only. Not medical advice. ASCEND does not conduct or endorse any specific research protocol. Always consult relevant scientific literature and regulatory guidelines.