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Taking people in United StatesPhase 3

Tests empasiprubart against placebo in adults with CIDP

Tests empasiprubart, or a placebo, in adults with chronic inflammatory demyelinating polyneuropathy.

Plain-language title generated from the registry record
Registry title: A Study to Assess the Efficacy and Safety of Empasiprubart in Adults With CIDP

Key facts

Where
Austin, Birmingham, Colorado Springs, Houston, Knoxville, Miami, Naples, Philadelphia, Rancho Mirage, Slidell, Tucson, Vero Beach, and Washington D.C., United StatesSee the 14 sites
Phase
Phase 3

Where in United States

  • National Neuromuscular Research InstituteAustin, United StatesTaking people
  • University of Alabama at Birmingham - 1720 University BlvdBirmingham, United StatesTaking people
  • Colorado Springs Neurological AssociatesColorado Springs, United StatesTaking people
  • NeuroCarePlusHouston, United StatesTaking people
  • University NeurologyKnoxville, United StatesTaking people
  • Gables NeurologyMiami, United StatesTaking people
  • Aqualane Clinical ResearchNaples, United StatesTaking people
  • Jefferson Health Honickman CenterPhiladelphia, United StatesTaking people
  • Penn Medicine University CityPhiladelphia, United StatesTaking people
  • Samir Macwan, M.D., Inc. (S corporation)Rancho Mirage, United StatesTaking people
  • Paradigm Health SystemSlidell, United StatesTaking people
  • Banner University of Arizona Medical CenterTucson, United StatesTaking people
  • Vero Beach Neurology and Research InstituteVero Beach, United StatesTaking people
  • Medstar Health Research InstituteWashington D.C., United StatesTaking people

Questions to ask the study team

  1. How often do I need to come in, and for how long each time?
  2. Are travel costs paid?
  3. Can I keep my own doctor?
  4. What happens if I want to stop?
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Trial details

Who runs it
argenx
Trial code
NCT07091630EU 2025-520805-10-00
Record updated
9 November 2026
Original description
The main purpose of this study is to demonstrate the efficacy and safety of empasiprubart in adults with CIDP. The study consists of a part A where participants will either receive empasiprubart or placebo for 24 weeks (6 months). Following part A, participants will enter part B in which all participants will receive empasiprubart for 96 weeks (24 months).Read full original descriptionShow less

A Phase 3, Randomized, Double-Blinded, Placebo-Controlled Study Evaluating the Efficacy and Safety of Empasiprubart IV in Adults With Chronic Inflammatory Demyelinating Polyneuropathy

The main purpose of this study is to demonstrate the efficacy and safety of empasiprubart in adults with CIDP. The study consists of a part A where participants will either receive empasiprubart or placebo for 24 weeks (6 months). Following part A, participants will enter part B in which all participants will receive empasiprubart for 96 weeks (24 months).

More information can be found here: https://clinicaltrials.argenx.com/emnergize

Inclusion: Meets criteria for CIDP based on EAN/PNS Task Force CIDP guidelines, second revision (2021); Has either typical CIDP or 1 of the following CIDP variants: motor CIDP (including motor-predominant CIDP), multifocal CIDP (also known as Lewis-Sumner syndrome), focal CIDP, or distal CIDP; Has residual disability and active disease; Has not received previous treatment for CIDP; or has stopped receiving CIDP treatment; or is receiving CIDP treatment (pulsed or oral corticosteroids, immunoglobulins, PLEX, or FcRn inhibitors); Participants already receiving CIDP treatment will have to discontinue their CIDP treatment before first IMP administration and must be willing to switch to the study IMP.

Exclusion: Use of other long-acting immunomodulatory treatment or prior treatment (at any time) with total lymphoid irradiation or bone marrow transplantation; Meets the criteria for possible CIDP based on EAN/PNS Task Force CIDP guidelines, second revision (2021); Sensory CIDP (including sensory-predominant CIDP); Polyneuropathy of other causes; Clinical diagnosis of systemic lupus erythematosus (SLE).

ClinicalTrials.gov NCT07091630 · EU CTIS 2025-520805-10-00