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-2)
Run by Immunic AG · NCT05201638 · 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 | 91 sites (Scottsdale, Arizona and 90 other locations) |
| Trial ID | NCT05201638 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 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.
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 evaluating similar treatments for relapsing multiple sclerosis have shown promising results, indicating potential for success in this approach.
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 of COVID-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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HonorHealth Research Institute - Bob Bove Neuroscience Institute
Scottsdale, Arizona, United States Recruiting -
Neuro of Central Florida
Altamonte Springs, Florida, United States Recruiting -
Healthcare Innovations
Coral Springs, Florida, United States Recruiting -
Homestead Associates
Miami, Florida, United States Recruiting -
Premier Clinical Research
Miami, Florida, United States Recruiting -
Baptist Health Lexington
Nicholasville, Kentucky, United States Recruiting
Show 44 more locations
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Boston Clinical Trials
Boston, Massachusetts, United States Recruiting -
Heratsi Hospital Complex 1
Yerevan, Armenia Recruiting -
Erebouni Medical Center
Yerevan, Armenia Recruiting -
UCC of Rep of Srpska
Banja Luka, Bosnia and Herzegovina Recruiting -
Cantonal Hospital Bihac Dr. Irfan Ljubijankic
Bihać, Bosnia and Herzegovina Recruiting -
University Clinical Center of Sarajevo
Sarajevo, Bosnia and Herzegovina Recruiting -
University Clinical Center Sarajevo
Sarajevo, Bosnia and Herzegovina Recruiting -
University Clinical Center Tuzla
Tuzla, Bosnia and Herzegovina Recruiting -
Astra Clinic
Tallinn, Estonia Recruiting -
Post-Graduation Institute of Medical Education and Research (PGIMER)
Chandigarh, India Recruiting -
Fortis Memorial Research Institute
Gurugramam, India Recruiting -
Dr Ram Manohar Lohia Institute of Medical Sciences
Lucknow, India Recruiting -
All India Institute of Medical Sciences
New Delhi, India Recruiting -
GB Pant Institute of Postgraduate Medical Education and Research
New Delhi, India Recruiting -
SRI Guru Ram Das Institute of Medical Sciences and Research
Punjabi Bagh, India Recruiting -
Dks Pgi
Raipur, India Recruiting -
Centro de Investig. Médicas
Lima, Peru Recruiting -
NZOZ Wielospecjalistyczna Poradnia Lekarska "Synapsis"
Katowice, Poland Recruiting -
Neuro-Medic Janusz Zbrojkiewicz
Katowice, Poland Recruiting -
NZOZ Neuromed
Lublin, Poland Recruiting -
Indywidualna Praktyka Lekarska prof. Konrad Rejdak
Lublin, Poland Recruiting -
Instytut Zdrowia Boczarska
Oświęcim, Poland Recruiting -
NZOZ Hertmanowskiej
Plewiska, Poland Recruiting -
NZOZ Neuro-Kard
Poznań, Poland Recruiting -
Centrum Medyczne NeuroProtect
Warsaw, Poland Recruiting -
FutureMeds Warszawa Centrum
Warsaw, Poland Recruiting -
Centrum Med. Ibismed
Zabrze, Poland Recruiting -
SC Sana Monitoring SRL
Bucharest, Romania Recruiting -
Elias University Emergency Hospital
Bucharest, Romania Recruiting -
Spitalul clinic CF Constanta
Constanţa, Romania Recruiting -
Asociatia Comunitatea Oamenilor
Craiova, Romania Recruiting -
Clubul Sanatatii SRL
Câmpulung, Romania Recruiting -
Aria Clinic SRL
Sibiu, Romania Recruiting -
Spit Jud Branzeu TIM Neuro
Timişoara, Romania Recruiting -
Klinicko bolnicki centar Dr Dragisa Misovic - Dedinje
Belgrade, Serbia Recruiting -
Klinicko bolnicki centar Zvezdara
Belgrade, Serbia Recruiting -
Opsta bolnica Medicinski sistem Beograd
Belgrade, Serbia Recruiting -
Vojnomedicinska akademija
Belgrade, Serbia Recruiting -
Univerzitetski Klinicki centar Kragujevac
Kragujevac, Serbia Recruiting -
Univerzitetski Klinicki centar Kragujevac
Kragujevac, Serbia Recruiting -
Univerzitetski Klinicki centar Nis
Niš, Serbia Recruiting -
Hsptl Sveti Vracevi
Novi Kneževac, Serbia Recruiting -
General Hospital Uzice
Užice, Serbia Recruiting -
Klinicko Bolnicki centar Zemun
Zemun, Serbia Recruiting
+41 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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Slip-and-trip motor training to reduce falls in relapsing‑remitting multiple sclerosis
This program tests whether repeated practice with controlled slips and trips helps ambulatory adults with relapsing‑remitting multiple sclerosis learn to react better and lower their chance of falling.
-
Effects of Ketogenic Diet on Multiple Sclerosis
This study is testing whether a ketogenic diet or a Mediterranean diet can help people with relapsing-remitting multiple sclerosis feel better and manage their symptoms.
-
Using magnetic stimulation to reduce fatigue in multiple sclerosis
This study is testing if a type of magnetic stimulation can help reduce fatigue in people with Relapsing-Remitting Multiple Sclerosis.
-
Treatment for Multiple Sclerosis Using Stem Cell Transplantation
This study is testing the long-term effects of a stem cell treatment for people with active relapsing-remitting multiple sclerosis to see how it impacts their health over five years.
-
Observational study of patients with Multiple Sclerosis in Switzerland
This study is trying to find out more about the early signs of Multiple Sclerosis and how it changes over time by looking at health data from patients in Switzerland.
-
Evaluating Ozanimod versus Fingolimod for Children with Relapsing Remitting Multiple Sclerosis
This study is testing whether ozanimod works better than fingolimod for children and teens with relapsing remitting multiple sclerosis.
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.