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Lu AA21004

H. Lundbeck A/S · Phase 3 active Small molecule

Lu AA21004 is a multimodal antidepressant that acts as a serotonin reuptake inhibitor, serotonin 5-HT1A receptor agonist, and serotonin 5-HT7 receptor antagonist.

Lu AA21004 is a multimodal antidepressant that acts as a serotonin reuptake inhibitor, serotonin 5-HT1A receptor agonist, and serotonin 5-HT7 receptor antagonist. Used for Major depressive disorder.

At a glance

Generic nameLu AA21004
Also known asVortioxetine
SponsorH. Lundbeck A/S
Drug classMultimodal antidepressant; serotonin reuptake inhibitor with 5-HT1A agonist and 5-HT7 antagonist activity
TargetSerotonin transporter (SERT), 5-HT1A receptor, 5-HT7 receptor
ModalitySmall molecule
Therapeutic areaPsychiatry/Neurology
PhasePhase 3

Mechanism of action

The drug combines inhibition of serotonin reuptake (increasing synaptic serotonin) with direct agonism at the 5-HT1A autoreceptor (which enhances serotonergic neurotransmission) and antagonism at the 5-HT7 receptor (which may contribute to antidepressant and anxiolytic effects). This multimodal mechanism is designed to provide faster onset and improved efficacy compared to selective serotonin reuptake inhibitors alone.

Approved indications

Common side effects

Key clinical trials

Primary sources

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

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