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ALD403

Alder Biopharmaceuticals, Inc. · Phase 3 active Biologic

ALD403 is a monoclonal antibody that blocks calcitonin gene-related peptide (CGRP), a neuropeptide involved in migraine pathogenesis.

ALD403 is a monoclonal antibody that blocks calcitonin gene-related peptide (CGRP), a neuropeptide involved in migraine pathogenesis. Used for Migraine prevention (episodic and chronic).

At a glance

Generic nameALD403
Also known asEptinezumab-jjmr, Vyepti
SponsorAlder Biopharmaceuticals, Inc.
Drug classCGRP monoclonal antibody
TargetCGRP (Calcitonin Gene-Related Peptide)
ModalityBiologic
Therapeutic areaNeurology
PhasePhase 3

Mechanism of action

CGRP is released during migraine attacks and contributes to vasodilation, neurogenic inflammation, and pain signal transmission. By binding to and neutralizing CGRP, ALD403 prevents its interaction with CGRP receptors on neurons and blood vessels, thereby reducing migraine frequency and severity. This mechanism has demonstrated efficacy in preventing both episodic and chronic migraines.

Approved indications

Common side effects

Key clinical trials

Primary sources

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SourceUsed for
ClinicalTrials.govTrial enrolment, design, endpoints, results