ADAM'S Prognostic Markers
Prospective Value of Clinical , CSF and MRI Findings in Pediatric Acute Disseminated Encephalomyelitis
1 other identifier
observational
32
0 countries
N/A
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
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for all trials
Started Sep 2025
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 Start
First participant enrolled
September 1, 2025
CompletedFirst Submitted
Initial submission to the registry
September 3, 2025
CompletedFirst Posted
Study publicly available on registry
September 23, 2025
CompletedPrimary Completion
Last participant's last visit for primary outcome
September 1, 2026
ExpectedStudy Completion
Last participant's last visit for all outcomes
October 1, 2026
September 23, 2025
September 1, 2025
1 year
September 3, 2025
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
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: 12973660BACKGROUNDKrupp 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: 23572237BACKGROUNDVerhey 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: 22067635BACKGROUNDPohl 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
Condition Hierarchy (Ancestors)
Central Study Contacts
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