NCT07188194

Brief Summary

Acute Disseminated Encephalomyelitis (ADEM) is an immune-mediated demyelinating disorder of the central nervous system that predominantly affects children. It typically presents with an acute onset of multifocal neurological symptoms, often preceded by a viral infection or, less commonly, vaccination. ADEM is characterized radiologically by widespread, bilateral, asymmetric lesions in the brain and spinal cord, and is often monophasic in nature. Despite generally favorable outcomes, a subset of patients may experience significant neurological sequelae, prolonged recovery, or even conversion to chronic demyelinating disorders such as multiple sclerosis (MS) or multiphasic ADEM. The early identification of patients at risk for poor outcomes remains a clinical challenge, as the course of the disease is highly variable. Cerebrospinal fluid (CSF) analysis and magnetic resonance imaging (MRI) are essential components in the diagnostic workup of ADEM. Certain CSF features-such as pleocytosis, elevated protein levels, or the presence of oligoclonal bands-may reflect the underlying immunological activity and CNS inflammation. Similarly, specific MRI characteristics-such as lesion distribution, size, contrast enhancement, or involvement of deep gray matter-may correlate with disease severity and long-term prognosis. The clinical presentation of ADEM is heterogeneous. Common features include encephalopathy (ranging from irritability to coma), seizures, motor deficits, ataxia, visual disturbances, and brainstem symptoms. The severity and combination of these manifestations can vary widely between patients. Several studies suggest that certain clinical features may correlate with poorer prognosis, such as prolonged or deep coma, recurrent seizures, early need for intensive care, and delayed initiation of immunotherapy.

Trial Health

65
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
32

participants targeted

Target at P25-P50 for all trials

Timeline
5mo left

Started Sep 2025

Status
not yet recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Progress63%
Sep 2025Oct 2026

Study Start

First participant enrolled

September 1, 2025

Completed
2 days until next milestone

First Submitted

Initial submission to the registry

September 3, 2025

Completed
20 days until next milestone

First Posted

Study publicly available on registry

September 23, 2025

Completed
11 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 1, 2026

Expected
1 month until next milestone

Study Completion

Last participant's last visit for all outcomes

October 1, 2026

Last Updated

September 23, 2025

Status Verified

September 1, 2025

Enrollment Period

1 year

First QC Date

September 3, 2025

Last Update Submit

September 20, 2025

Conditions

Outcome Measures

Primary Outcomes (1)

  • Neurological status assessed by the National Institutes of Health Stroke Scale (NIHSS)

    The NIHSS quantifies neurological impairment. Scores range from 0 (no deficit) to 42 (severe stroke). Higher scores indicate worse neurological status.

    At 3 months, and 6 months

Secondary Outcomes (1)

  • Functional outcome assessed by the Modified Rankin Scale (mRS)

    At 3 months and 6 months

Study Arms (1)

Children

Eligibility Criteria

Age6 Minutes - 18 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64)
Sampling MethodProbability Sample
Study Population

Children aged 6 months -1 Year diagnosed with ADEM

You may qualify if:

  • \- First episode of acute disseminated encephalomyelitis( ADEM).
  • \- MRI and cerebrospinal fluid (CSF) performed within 7 days of symptom onset.
  • \- Age from 6 months up to 18 years

You may not qualify if:

  • \- History of prior demyelinating events
  • \- Alternative diagnoses (e.g., CNS infections, metabolic disorders).

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Related Publications (4)

  • Anlar B, Basaran C, Kose G, Guven A, Haspolat S, Yakut A, Serdaroglu A, Senbil N, Tan H, Karaagaoglu E, Karli Oguz K. Acute disseminated encephalomyelitis in children: outcome and prognosis. Neuropediatrics. 2003 Aug;34(4):194-9. doi: 10.1055/s-2003-42208.

    PMID: 12973660BACKGROUND
  • Krupp LB, Tardieu M, Amato MP, Banwell B, Chitnis T, Dale RC, Ghezzi A, Hintzen R, Kornberg A, Pohl D, Rostasy K, Tenembaum S, Wassmer E; International Pediatric Multiple Sclerosis Study Group. International Pediatric Multiple Sclerosis Study Group criteria for pediatric multiple sclerosis and immune-mediated central nervous system demyelinating disorders: revisions to the 2007 definitions. Mult Scler. 2013 Sep;19(10):1261-7. doi: 10.1177/1352458513484547. Epub 2013 Apr 9.

    PMID: 23572237BACKGROUND
  • Verhey LH, Branson HM, Shroff MM, Callen DJ, Sled JG, Narayanan S, Sadovnick AD, Bar-Or A, Arnold DL, Marrie RA, Banwell B; Canadian Pediatric Demyelinating Disease Network. MRI parameters for prediction of multiple sclerosis diagnosis in children with acute CNS demyelination: a prospective national cohort study. Lancet Neurol. 2011 Dec;10(12):1065-73. doi: 10.1016/S1474-4422(11)70250-2. Epub 2011 Nov 6.

    PMID: 22067635BACKGROUND
  • Pohl D, Alper G, Van Haren K, Kornberg AJ, Lucchinetti CF, Tenembaum S, Belman AL. Acute disseminated encephalomyelitis: Updates on an inflammatory CNS syndrome. Neurology. 2016 Aug 30;87(9 Suppl 2):S38-45. doi: 10.1212/WNL.0000000000002825.

    PMID: 27572859BACKGROUND

MeSH Terms

Conditions

Encephalomyelitis, Acute Disseminated

Condition Hierarchy (Ancestors)

Demyelinating Autoimmune Diseases, CNSAutoimmune Diseases of the Nervous SystemNervous System DiseasesLeukoencephalopathiesBrain DiseasesCentral Nervous System DiseasesDemyelinating DiseasesAutoimmune DiseasesImmune System DiseasesPost-Infectious DisordersChronic DiseaseDisease AttributesPathologic ProcessesPathological Conditions, Signs and Symptoms

Central Study Contacts

Alaa A Alkasem, Master

CONTACT

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Resident

Study Record Dates

First Submitted

September 3, 2025

First Posted

September 23, 2025

Study Start

September 1, 2025

Primary Completion (Estimated)

September 1, 2026

Study Completion (Estimated)

October 1, 2026

Last Updated

September 23, 2025

Record last verified: 2025-09

Data Sharing

IPD Sharing
Will not share