Related Experiment Video
Updated: May 29, 2026

Induction and Clinical Scoring of Chronic-Relapsing Experimental Autoimmune Encephalomyelitis
Published on: July 4, 2007
Etanercept-induced encephalopathy in a 7-year-old child
Barış Ekici1, Kubilay Aydın, Serdar Cantez
1Department of Pediatric Neurology, Istanbul Medical Faculty, Istanbul University, Fatih, Istanbul, Turkey. ekicibaris@yahoo.com
Insights
Etanercept can cause serious adverse events, including encephalopathy. This report details the first pediatric case of etanercept-related encephalopathy in a child with systemic arthritis.
Area of Science:
- Immunology
- Neurology
- Pediatrics
Background:
- Etanercept is a biologic therapy used for autoimmune diseases.
- Known adverse events include infections, malignancies, and neurological disorders.
- Encephalopathy is a rare but serious side effect.
Observation:
- A 7-year-old patient with systemic arthritis received etanercept.
- The patient developed encephalopathy shortly after the third dose.
- This is the first reported pediatric case of its kind.
Findings:
- The patient experienced encephalopathy following etanercept treatment.
- This adverse event occurred in a pediatric patient with systemic arthritis.
- The temporal association suggests a link between etanercept and encephalopathy.
Implications:
- Highlights the potential for severe neurological adverse events in pediatric patients treated with etanercept.
- Underscores the need for vigilant monitoring for encephalopathy in children receiving this medication.
- Contributes to the understanding of rare side effects of biologic therapies in pediatric rheumatology.
Abstract:
Adverse events were reported in various patients treated with etanercept, including infections (sepsis and tuberculosis), malignancies (e.g., lymphoma), demyelinating disorders, and autoimmune diseases. Only two adult patients with etanercept-related encephalopathy were previously reported. We describe a 7-year-old patient who developed encephalopathy immediately after his third dose of etanercept. To the best of our knowledge, ours is the first report of a pediatric patient with a diagnosis of systemic arthritis and who developed etanercept-related encephalopathy.
More Related Videos
07:30A Simple Approach to Induce Experimental Autoimmune Neuritis in C57BL/6 Mice for Functional and Neuropathological Assessments
Published on: November 9, 2017
10:50Visualizing Impairment of the Endothelial and Glial Barriers of the Neurovascular Unit during Experimental Autoimmune Encephalomyelitis In Vivo
Published on: March 26, 2019
Related Concept Videos
Encephalitis l: Introduction
Encephalitis ll: Pathophysiology
Hepatic Encephalopathy
Arboviral Encephalitis
Pharmacokinetics in Pediatric Patients: Drug Metabolism