◎ Investigational

Empasiprubart (ARGX-117)

2
Evidence entries
4
Clinical trials
Overview
Treatment Details
Mechanism of Action
First-in-class humanized monoclonal antibody targeting complement C2, blocking classical and lectin complement pathways upstream of C3/C5.
Dosing Notes
Investigational; IV administration in trials to date.
Treatment Type
pharmaceutical
Clinical Evidence
What the Evidence Shows
Each finding below is linked to its primary source. Confidence levels reflect the quality and quantity of available evidence — not CelluTarget's endorsement of any treatment.
High: Supported by multiple robust studies or regulatory approval
Moderate: Supported by limited controlled studies or consistent case series
Low: Based on case reports, expert opinion, or early-phase data only
Moderate ConfidenceSupported by limited controlled studies or consistent case series
Phase 3 registrational head-to-head trial of empasiprubart vs IVIg, currently active (not recruiting).
Verified Jul 2026
Clinical Trial Registry
EMPASSION: Phase 3 empasiprubart vs IVIg in adults with MMN — NCT06742190
Published November 2024
View source ↗
Phase 2 proof-of-concept: improved grip strength and reduced need for IVIg retreatment vs placebo.
Verified Jul 2026
Clinical Trial Registry
ARDA: Phase 2 trial of ARGX-117 (empasiprubart) in adults with MMN — NCT05225675
Published April 2026
View source ↗
Clinical Trials
Linked Trials4 trials
Empasiprubart (ARGX-117) for MMN — Evidence & Clinical Trials | CelluTarget