Evaluating IMU-838 for treating relapsing multiple sclerosis
Official title: A Multi-Center, Randomized, Double-Blinded Phase 3 Study to Evaluate the Efficacy, Safety, and Tolerability of IMU-838 Versus Placebo in Adults With Relapsing Multiple Sclerosis (ENSURE-1)
Run by Immunic AG · NCT05134441 · Data updated 2026-05-14
This study is no longer in our active list. It may have stopped recruiting or finished. The details below are as of 2026-05-14 and are kept for reference. Check ClinicalTrials.gov for its current status, or see similar studies below.
This study is testing a new medication called IMU-838 to see if it can help adults with relapsing multiple sclerosis feel better and manage their symptoms.
Quick facts
| Phase | Phase 3 |
|---|---|
| Study type | Interventional |
| Ages | 18 Years to 55 Years |
| Sex | All |
| Enrollment | 1050 (estimated) |
| Sponsor | Immunic AG Industry-sponsored |
| Locations | 86 sites (Phoenix, Arizona and 85 other locations) |
| Trial ID | NCT05134441 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates for this study are adults aged 18 to 55 with an established diagnosis of relapsing multiple sclerosis and evidence of active disease.
✕Probably not a fit
Patients with non-active secondary progressive multiple sclerosis or primary progressive multiple sclerosis may not benefit from this study.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This is a multicenter, randomized, double-blind, placebo-controlled Phase 3 study designed to assess the efficacy, safety, and tolerability of IMU-838 in adults diagnosed with relapsing multiple sclerosis (RMS). The study includes a screening period of approximately 28 days, followed by a main treatment period lasting up to 72 weeks, and an open-label extension period that may last up to 8 years. Participants will receive either IMU-838 or a placebo, and their responses will be monitored throughout the study duration.
Why it matters
Potential benefit: If successful, this study could provide a new treatment option for patients with relapsing multiple sclerosis, potentially improving their quality of life.
How similar studies have gone: Other studies have shown promise in evaluating treatments for relapsing multiple sclerosis, suggesting that this approach may be effective.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Male or female patient (age ≥18 to ≤55 years). * Patients with an established diagnosis of MS according to 2017 McDonald Criteria. * Patients with RMS comprising of relapsing remitting MS (RRMS) and active secondary progressive MS, both defined according to Lublin criteria 1996 and 2014. * Active disease as defined by Lublin 2014 evidenced prior to Screening by: 1. At least 2 relapses in the last 24 months before randomization, or 2. At least 1 relapse in the last 12 months before randomization, or 3. A positive Gd+ MRI scan (brain and/or spine) in the last 12 months prior to randomization. * Willingness and ability to comply with the protocol. * Written informed consent given prior to any study-related procedure. Exclusion Criteria: * Patients with non-active secondary progressive MS and primary progressive MS. * Any disease other than MS that may better explain the signs and symptoms, including history of complete transverse myelitis. * Clinical signs or presence of laboratory findings suggestive for neuromyelitis optica (NMO) spectrum disorders or myelin oligodendrocyte glycoprotein (MOG)-IgG-associated encephalomyelitis * Any active and uncontrolled coexisting autoimmune disease, other than MS (except for type 1 diabetes mellitus and inflammatory bowel disease) * Use of experimental/investigational drug (with the exception ofCOVID-19 vaccines approved by emergency use authorization) and/or participation in drug clinical studies within 6 months prior to Screening * Previous or current use of MS treatments lifelong, or within a pre-specified time period. * Use of the pre-specified concomitant medications. * Clinically significantly abnormal and pre-specified lab values. * History of chronic systemic infections within 6 months before the date of informed consent. * Diagnosis or suspected liver function impairment, which may cause fluctuating liver function tests during this study. * Known history of nephrolithiasis or underlying condition with a strong association of nephrolithiasis. * History or clinical diagnosis of gout. * History or presence of any major medical or psychiatric illness * Substantial medical condition that could create undue risk to the patient, could affect adherence with the study protocol or could undesirably affect study outcomes
Where it's running
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Xenoscience, Inc., 21st Century Neurology
Phoenix, Arizona, United States Recruiting -
Bradenton Research Center
Bradenton, Florida, United States Recruiting -
Collier Neurologic Specialists
Naples, Florida, United States Recruiting -
Neurology Associates of Ormond Beach
Ormond Beach, Florida, United States Recruiting -
Consultants in Neurology, Ltd
Northbrook, Illinois, United States Recruiting -
Klinika Mjekesore Nuova, Neurology Clinic
Tirana, Albania Recruiting
Show 44 more locations
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Hygeia Hospital Tirana
Tirana, Albania Recruiting -
MHAT Puls AD
Blagoevgrad, Bulgaria Recruiting -
MHAT "Heart and Brain", EAD
Burgas, Bulgaria Recruiting -
MC Exacta Medica OOD
Pleven, Bulgaria Recruiting -
MHAT Avis Medica
Pleven, Bulgaria Recruiting -
UMHAT Dr.Georgi Stranski EAD
Pleven, Bulgaria Recruiting -
Heart and Brain University Hospital
Pleven, Bulgaria Recruiting -
MC Vita 1
Pleven, Bulgaria Recruiting -
UMHAT Sveti Georgi
Plovdiv, Bulgaria Recruiting -
UMHAT "Medica Ruse"
Ruse, Bulgaria Recruiting -
CCB Medical Institute Ministry of Interior
Sofia, Bulgaria Recruiting -
Diagnostic and Consultative Center Neoclinic
Sofia, Bulgaria Recruiting -
UMHAT "Sveti Ivan Rilski" EAD
Sofia, Bulgaria Recruiting -
MHATNP "Sveti Naum", EAD
Sofia, Bulgaria Recruiting -
MHATNPsy Sveti Naum EAD
Sofia, Bulgaria Recruiting -
UMHAT "Alexandrovska" EAD
Sofia, Bulgaria Recruiting -
UMHAT "Alexandrovska"
Sofia, Bulgaria Recruiting -
Military Medical Academy MHAT
Sofia, Bulgaria Recruiting -
MHAT "Sveta Sofia" EOOD
Sofia, Bulgaria Recruiting -
Military Medical Academy
Sofia, Bulgaria Recruiting -
UMHAT"Tsaritsa Yoanna -ISUL
Sofia, Bulgaria Recruiting -
UMHATEM N.Pirogov
Sofia, Bulgaria Recruiting -
UMHAT "Sveta Marina" EAD, First Clinic of Neurological Diseases
Varna, Bulgaria Recruiting -
Clínica Colsanitas S.A. Sede Clínica Universitaria Colombia
Bogotá, Colombia Recruiting -
Neurocountry Portoazul S.A.S.
Puerto Colombia, Colombia Recruiting -
1st Uni Clinic of Tbilisi LEPL
Tbilisi, Georgia Recruiting -
Eristavi Experimental Center
Tbilisi, Georgia Recruiting -
J.S.C. Curatio Clinic
Tbilisi, Georgia Recruiting -
Katsiashvili Emergency Center
Tbilisi, Georgia Recruiting -
Khechinashvili University Hospital
Tbilisi, Georgia Recruiting -
LTD Aversi Clinic
Tbilisi, Georgia Recruiting -
LTD New Hospitals
Tbilisi, Georgia Recruiting -
MediClub Georgia LLC
Tbilisi, Georgia Recruiting -
Pineo Medical Ecosystem LTD
Tbilisi, Georgia Recruiting -
Sarajishvili Neurology Institute
Tbilisi, Georgia Recruiting -
Athens Medical Center
Athens, Greece Recruiting -
Thessaloniki Hosptl
Thessaloníki, Greece Recruiting -
Kanoria Hospital & Research Centre
Gandhinagar, India Recruiting -
Mallikatte, Kadri
Mangalore, India Recruiting -
Jasleen Hospital
Nagpur, India Recruiting -
Sir Ganga Ram Hospital
New Delhi, India Recruiting -
Ruby Hospital
Pune, India Recruiting -
Indira Gandhi Medical College & Hospital
Shimla, India Recruiting -
Institute of Medical Sciences Banaras Hindu University,IMS BHU Varanasi
Varanasi, India Recruiting
+36 more sites. See ClinicalTrials.gov for the full list.
Study contacts
- Principal investigator: Robert J. Fox, MD — Mellen Center for MS, Neurological Institute, Cleveland Clinic, Ohio
- Study coordinator: Andreas Muehler, MD
- Email: info@imux.com
- Phone: +49 89 2080 477 00
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
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Treadmill-based virtual reality walking training for MS patients
This study tests whether a treadmill with virtual reality and smart socks can help people with multiple sclerosis walk better and feel safer in daily life.
-
Virtual Reality and Mental Practice to Improve Balance and Walking in Relapsing MS
This study tests whether virtual reality training or mental practice can improve balance and walking in people with relapsing–remitting multiple sclerosis.
-
REAL-MS: A Look at Autologous Stem Cell Transplant vs High-Efficacy MS Therapies in Real-World Care
This study tests how AHSCT compares to high-efficacy MS medicines in adults treated in routine clinical care.
-
Tolebrutinib in real-world MS care for patients treated by clinicians
This real-world study sees how tolebrutinib is used for multiple sclerosis patients and what outcomes look like in everyday practice.
-
Pilates via live video vs. prerecorded videos for people with multiple sclerosis
This study tests whether live, coach-led Pilates sessions through video calls are more beneficial than prerecorded Pilates videos for adults with MS.
-
Cooling During Inpatient Rehab for People with MS
This trial tests whether wearing a cooling vest during intensive training can reduce fatigue and improve walking, strength, balance, and cognition in people with multiple sclerosis during a 3-week inpatient rehab stay.
How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.