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Active, not recruiting Phase 3 Interventional

A Study to Test How Safe Pozelimab and Cemdisiran Combination Therapy and Cemdisiran Alone Are and How Well They Work in Adult Patients With Generalized Myasthenia Gravis

ClinicalTrials.gov ID: NCT05070858

Public ClinicalTrials.gov record NCT05070858. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Oct 22, 2026, 8:22 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

Efficacy and Safety of Pozelimab and Cemdisiran Combination Therapy and Cemdisiran Monotherapy in Patients With Symptomatic Generalized Myasthenia Gravis

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

This study is researching the experimental drugs called pozelimab and cemdisiran, and cemdisiran monotherapy. The study is focused on patients with generalized Myasthenia Gravis (gMG). Myasthenia gravis is a disease that causes weakness and fatigue in muscles in the body because the nerves and muscles are not communicating properly. The aim of the study is to see how effective pozelimab and cemdisiran are when used in combination and when pozelimab and cemdisiran are used alone for patients with gMG. The study is looking at several other research questions, including: * What side effects may happen from taking the study drugs * How the study drugs work inside the body * How much of the study drugs are in the blood at different times * Whether the body makes antibodies against pozelimab and cemdisiran (which could make the drugs less effective or could lead to side effects)

Study identification

NCT ID
NCT05070858
Recruitment status
Active, not recruiting
Study type
Interventional
Phase
Phase 3
Lead sponsor
Regeneron Pharmaceuticals
Industry
Enrollment
288 participants

Conditions and interventions

Eligibility (public fields only)

Age range
18 Years and older
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Dec 14, 2021 (Actual)
Primary completion
Jul 8, 2025 (Actual)
Completion
Nov 11, 2028 (Estimated)
Last update posted
Jul 8, 2026

2021 – 2028

United States locations

U.S. sites
19
U.S. states
9
U.S. cities
19
Facility City State ZIP Site status
HonorHealth Neurology 2018 Scottsdale Arizona 85251 —
University of California Irvine Irvine California 92697 —
University of Southern California Los Angeles California 90033 —
Colorado Springs Neurological Associates Colorado Springs Colorado 80907-5307 —
SFM Clinical Research, LLC Boca Raton Florida 33487 —
Diverse Clinical Research Miami Florida 33175 —
Aqualane Clinical Research Naples Florida 34105 —
Neurological Services of Orlando Orlando Florida 32806 —
Medsol Clinical Research Center Inc Port Charlotte Florida 33952 —
University of South Florida Morsani Center for Advanced Healthcare Tampa Florida 33612 —
NorthShore University Health System Glenview Illinois 60026-1301 —
St. Elizabeth's Hospital O'Fallon Illinois 62269 —
Northwest Neurology Ltd. - Clinedge - PPDS Rolling Meadows Illinois 60080 —
Wayne State University School of Medicine Detroit Michigan 48201 —
Dayton Center for Neurological Disorders Centerville Ohio 45459 —
University of Cincinnati Gardner Neuroscience Institute Cincinnati Ohio 45219 —
Penn Medicine University City Philadelphia Pennsylvania 19104 —
National Neuromuscular Research Institute Austin Texas 78759 —
Nerve and Muscle Center of Texas Houston Texas 77030 —

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

Non-U.S. locations

This page focuses on the U.S. directory. The official record also lists 97 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT05070858, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Jul 8, 2026 · Synced Oct 22, 2026

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Open the official record

The complete public registry record, listed eligibility criteria, and available contact information for NCT05070858 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →