New drug aims to quiet MS brain lesions
NCT ID NCT06220669
First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This Phase 2 trial tests an experimental drug called LY3541860 against a placebo in 63 adults with relapsing multiple sclerosis. The goal is to see if the drug can slow the appearance of new brain lesions seen on MRI scans. The study lasts about 9 months, with an additional 6 months of follow-up.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- LY3541860 (an experimental drug given by IV)
- What this could lead to
- If it works, this could point toward a new treatment that reduces brain lesion activity in people with relapsing multiple sclerosis.
- What could go wrong
- This is an early Phase 2 trial with only 63 participants, so results may not apply to everyone. The drug may not slow lesions better than placebo, and side effects are still being studied.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 2
Tests whether the treatment actually works, and watches for side effects, in a larger group.
- Participants
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63 people
The number who actually took part.
- Started
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Mar 2024
- Expected to finish
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Jul 2026
An estimate. End dates often move.
- Lead sponsor
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A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 to 55 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Participants must meet criteria for relapsing forms of multiple sclerosis, including relapsing-remitting multiple sclerosis based on the 2017 revision of the McDonald diagnostic criteria (Thompson et al. 2018) with a relapsing course (RMS) activity according to Klineova and Lublin 2018. * Participants must have 1 of these: * at least 1 documented relapse within the previous year * at least 2 documented relapses within the previous 2 years, or * at least 1 active GdE brain lesion on an MRI scan in the past 180 days prior to screening. * Have an Expanded Disability Status Scale (EDSS) score of less than or equal to (≤) 5.5 at screening and randomization. Exclusion Criteria: * Have had a diagnosis of: * primary progressive multiple sclerosis (MS) according to the 2017 revision of McDonald diagnostic criteria (Thompson et al. 2018), or * nonactive secondary progressive MS ( Klineova and Lublin 2018). * Meet criteria for neuromyelitis optica spectrum disorder (Wingerchuk and Lucchinetti 2022). * Have a history of clinically significant central nervous system (CNS) disease. * Have had a confirmed relapse with systemic corticosteroid administration \<30 days prior to randomization. * Have more than 20 active GdE brain lesions on screening MRI scan. * Have received any of these medications or treatments. * Have a current or recent acute, active infection. * Have current serious or unstable illnesses. * Have any other clinically important abnormality at screening or baseline.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Centre Hospitalier Intercommunal - Site de Poissy
Poissy, 78303, France
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Clinirem
Lublin, 20-064, Poland
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Conquest Research LLC - Winter Park - ClinEdge - PPDS
Winter Park, Florida, 32789, United States
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Consultants in Neurology
Northbrook, Illinois, 60062, United States
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ETG Neuroscience - PPDS
Warsaw, 02-677, Poland
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Fondazione IRCCS Di Rilievo Nazionale Istituto Nazionale Neurologico Carlo Besta-VIA MANGIAGALLI 3
Milan, 20133, Italy
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Hope Neurology
Knoxville, Tennessee, 37922, United States
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IBISMED Wielospecjalistyczne Centrum Medyczne
Zabrze, 41-800, Poland
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M.A. - LEK A.M. Maciejowscy SC. Centrum Terapii SM
Katowice, 40-571, Poland
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NEURO-MEDIC Sp. z o. o.
Katowice, 40-686, Poland
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Nemocnica Ruzinov
Bratislava, 826 06, Slovakia
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Neurocentrum Bydgoszcz sp. z o.o.
Bydgoszcz, 85-796, Poland
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Niepubliczny Zaklad Opieki Zdrowotnej NEURO-KARD Ilkowski i Partnerzy Spolka Partnerska Lekarzy
Poznan, 61-853, Poland
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Panhandle Research and Medical Clinic
Gulf Breeze, Florida, 32561, United States
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Pauls Stradins Clinical Univeristy Hospital
Riga, LV-1002, Latvia
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Premier Neurology
Greer, South Carolina, 29605, United States
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ProNeuro Centrum Medyczne
Żory, 44-240, Poland
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Queen's Medical Centre
Nottingham, NG7 2UH, United Kingdom
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Sharlin Health and Neurology
Ozark, Missouri, 65721-5315, United States
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Specjalistyczna Praktyka Lekarska prof. Grzegorz Opala
Katowice, 40-060, Poland
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Other studies related to the condition(s) this trial covers.
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- One-Time CAR-T infusion tested against progressive MS
- Can PET scans reveal hidden brain inflammation in MS?
- Can a pill rebuild the Brain's insulation? MS trial puts remyelination to the test
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