RecruitingPhase 3NCT05503264

A Study to Evaluate the Efficacy, Safety, Pharmacokinetics (PK), and Pharmacodynamics (PD) of Satralizumab in Participants With Anti-N-methyl-D-aspartic Acid Receptor (NMDAR) or Anti-leucine-rich Glioma-inactivated 1 (LGI1) Encephalitis

A Phase III, Randomized, Double-blind, Placebo-controlled, Multicenter Basket Study to Evaluate the Efficacy, Safety, Pharmacokinetics, and Pharmacodynamics of Satralizumab in Patients With Anti-N-methyl-D-aspartic Acid Receptor (NMDAR) or Anti-leucine-rich Glioma-inactivated 1 (LGI1) Encephalitis


Sponsor

Hoffmann-La Roche

Enrollment

152 participants

Start Date

Sep 27, 2022

Study Type

INTERVENTIONAL

Conditions

Summary

The purpose of this study is to assess the efficacy, safety, PK, and PD of satralizumab in participants with NMDAR and LGI1 encephalitis.


Eligibility

Min Age: 12 Years

Plain Language Summary

Simplified for easier understanding

This study tests whether satralizumab (an IL-6 receptor blocker) can help people with autoimmune encephalitis caused by NMDA receptor or LGI1 antibodies — conditions that cause seizures, memory problems, and behavior changes — who have not responded well to initial treatments. You may be eligible if: - You are 12 or older (for NMDAR encephalitis) or 18 or older (for LGI1 encephalitis) - You have been diagnosed with probable or definite NMDAR or LGI1 autoimmune encephalitis - Your symptoms started within 9 months of the study start date - You are either newly diagnosed or have not fully responded to prior treatment - No tumor or malignancy has been found, or it has been treated You may NOT be eligible if: - You have an untreated teratoma or thymoma - You have an active cancer - You have had prior treatment with certain immune therapies (e.g., tocilizumab, alemtuzumab, anti-CD19 antibodies) - You have HIV, active infections, hepatitis B or C, or active tuberculosis - You are pregnant or breastfeeding - You have a history of severe allergic reaction to biologic drugs Talk to your doctor to see if this trial is right for you.

This summary was AI-generated to explain the trial in plain language. It is not medical advice. Always discuss eligibility with your doctor before enrolling in a clinical trial.

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Interventions

DRUGSatralizumab

In Part 1, study drug will be administered after all other study-related procedures have been performed at a site visit at Weeks 0, 2, 4, and every 4 weeks (Q4W) thereafter. Participants will receive satralizumab according to body weight. Study drug will be administered by subcutaneous (SC) injection in the abdominal or femoral region after all other study-related procedures have been performed at a site visit. In Part 2, participants will be asked to choose from one of the following options: Option 1: continue on randomized, double-blind study drug; Option 2: start open-label satralizumab based on body weight; Option 3: stop study treatment and continue follow-up assessments.

OTHERPlacebo

Satralizumab placebo prefilled syringe (PFS) is identical in composition to satralizumab PFS, but does not contain the satralizumab active ingredient and will be identical in appearance and packaging to satralizumab. A PFS (assembled with an needle safety device \[NSD\] and extended finger flange) filled with 0.5 milliliters (mL) of solution, corresponding to 60 milligrams (mg) satralizumab, may be used in Part 2 once it becomes available at the study site.


Locations(93)

University of Alabama at Birmingham

Birmingham, Alabama, United States

UC San Diego

La Jolla, California, United States

Hoag Memorial Hospital

Newport Beach, California, United States

UCSF- Multiple Sclerosis Centre

San Francisco, California, United States

University of Colorado

Aurora, Colorado, United States

Childrens National Health Center

Washington D.C., District of Columbia, United States

Children's Healthcare of Atlanta Center for Advanced Pediatrics

Atlanta, Georgia, United States

University of Iowa Hospitals & Clinics

Iowa City, Iowa, United States

University of Maryland Medical Center

Baltimore, Maryland, United States

Johns Hopkins Hospital

Baltimore, Maryland, United States

Brigham and Women's Hospital Department of Neurology

Boston, Massachusetts, United States

Mayo Clinic - Rochester

Rochester, Minnesota, United States

NYU-Langone Medical Center

New York, New York, United States

Duke University Medical Center

Durham, North Carolina, United States

University Hospitals of Cleveland

Cleveland, Ohio, United States

Cleveland Clinic Foundation

Cleveland, Ohio, United States

Univ of Pennsylvania Med Ctr

Philadelphia, Pennsylvania, United States

University of Texas at Houston

Houston, Texas, United States

Swedish Neuroscience Institute

Seattle, Washington, United States

Medical College of Wisconsin

Milwaukee, Wisconsin, United States

Hospital Ramos Mejía

CABA, Argentina

Hospital Britanico

Ciudad Autonoma Bs As, Argentina

Sanatorio del Sur S.A.

San Miguel de Tucumán, Argentina

Kepler Universitätsklinikum GmbH - Neuromed Campus

Linz, Austria

Medizinische Universität Wien

Vienna, Austria

Hospital Geral de Fortaleza

Fortaleza, Ceará, Brazil

CEDOES - Diagnóstico e Pesquisa

Vitória, Espírito Santo, Brazil

Instituto de Neurologia de Curitiba

Curitiba, Paraná, Brazil

Centro de Pesquisas Clinicas

São Paulo, São Paulo, Brazil

Hospital Israelita Albert Einstein

São Paulo, São Paulo, Brazil

Beijing Children's Hospital, Capital Medical University

Beijing, China

Beijing Tongren Hospital

Beijing, China

Beijing Tiantan Hospital,Capital Medical University

Beijing, China

The First Hospital of Jilin University

Changchun, China

The Second Xiangya Hospital of Central South University

Changsha, China

West China Hospital - Sichuan University

Chengdu, China

Fujian Medical University Union Hospital

Fuzhou, China

Guangzhou First Municipal People's Hospital

Guangzhou, China

Affiliated Hospital of Jining Medical University

Jining, China

Huashan Hospital, Fudan University

Shanghai, China

The First Hospital of Shanxi Medical University

Taiyuan, China

The First Affiliated Hospital of Wenzhou Medical University

Wenzhou, China

Tongji Hospital Tongji Medical College Huazhong University of Science and Technology

Wuhan, China

Fakultni nemocnice Hradec Kralove

Hradec Králové, Czechia

Fakultni nemocnice v Motole

Prague, Czechia

Odense Universitetshospital, Neurologisk Afdeling N

Odense C, Denmark

Hopital neurologique Pierre Wertheimer - CHU Lyon

Bron, France

Hopital Pitié Salpétrière - CHU

Paris, France

CHU Saint Etienne - Hôpital Nord

Saint-Etienne, France

CHRU - Hôpital Bretonneau

Tours, France

Komfo Anokye Teaching Hospital

Kumasi, Ghana

Hadassah University Hospital Ein Kerem

Jerusalem, Israel

Tel Aviv Sourasky Medical Center

Tel Aviv, Israel

A. O. U. Federico II

Naples, Campania, Italy

AOU Seconda Università degli Studi

Naples, Campania, Italy

Ospedale Pediatrico Bambino Gesù

Rome, Lazio, Italy

Irccs A.O.U.San Martino Ist

Genoa, Liguria, Italy

IRCCS Ospedale San Raffaele

Milan, Lombardy, Italy

Fondazione IRCCS Istituto Neurologico Carlo Besta

Milan, Lombardy, Italy

Fondazione Istituto Neurologico Mondino IRCCS

Pavia, Lombardy, Italy

AOU Policlinico Giaccone

Palermo, Sicily, Italy

Fujita Health University Hospital

Aichi, Japan

Chiba University Hospital

Chiba, Japan

Kyushu University Hospital

Fukuoka, Japan

Fukuoka University Hospital

Fukuoka, Japan

Gifu University Hospital

Gifu, Japan

Hokkaido University Hospital

Hokkaido, Japan

Hyogo prefectural Kobe Children's Hospital

Hyogoken, Japan

Kobe University Hospital

Hyōgo, Japan

Kagoshima City Hospital

Kagoshima, Japan

St.Marianna University School of Medicine hospital

Kanagawa, Japan

Kitasato University Hospital

Kanagawa, Japan

Tokai University Hospital

Kanagawa, Japan

Tohoku University Hospital

Miyagi, Japan

The University of Osaka Hospital

Osaka, Japan

Kindai University Hospital

Osaka, Japan

Ageo Central General Hospital

Saitama, Japan

Juntendo University Hospital

Tokyo, Japan

Nihon University Itabashi Hospital

Tokyo, Japan

Erasmus MC

Rotterdam, Netherlands

Regionalny Szpital Specjalistyczny im. W. Bieganskiego

Grudzi?dz, Poland

Szpital Uniwersytecki w Krakowie

Krakow, Poland

Instytut Psychiatrii i Neurologii II Klinika Neurologiczna

Warsaw, Poland

SPSK nr 1

Zabrze, Poland

National University Hospital (NUH)

Singapore, Singapore

National Neuroscience Institute

Singapore, Singapore

Seoul National University Hospital

Seoul, South Korea

Hospital Alvaro Cunqueiro

Vigo, Pontevedra, Spain

Hospital General Universitario Gregorio Marañon

Madrid, Spain

Hospital Regional Universitario de Malaga ? Hospital General

Málaga, Spain

Kaohsiung Chang Gung Memorial Hospital

Kaohsiung City, Taiwan

China Medical University Hospital

North Dist., Taiwan

Chang Gung Memorial Hospital - Linkou

Taoyuan City, Taiwan

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