# Identification of Cortical Biomarkers for Seizure Risk in Childhood Epilepsy

> **NIH NIH K23** · MASSACHUSETTS GENERAL HOSPITAL · 2020 · $46,680

## Abstract

Project Summary / Abstract
Dr. Catherine Chu is a practicing pediatric epileptologist and clinical neurophysiologist at Massachusetts
General Hospital (MGH), whose goal is to develop an independent research program utilizing non-invasive
human imaging and neurophysiological recordings to improve our understanding of the mechanisms, disease
process, and indicators of seizure risk in the developing brain. Dr. Chu proposes to study the most common
pediatric epilepsy syndrome, benign epilepsy with centrotemporal spikes (BECTS) using novel methods to
integrate advanced neuroimaging, electrophysiology, and signal processing techniques to identify key cortical
biomarkers of seizure risk. Despite extensive clinical experience with this disease, it remains a challenge to
determine who will benefit from antiepileptic drug (AED) treatment and when it is safe to discontinue. One-
third of these children will have only a single seizure, while two-thirds may have recurrent seizures over several
years. Although non-treatment or premature taper may result in seizures, chronic AED exposure introduces
cognitive side effects in 30-70% of exposed children. A biomarker to isolate which children are at risk for
ongoing seizures is needed to prevent the unnecessary consequences of over- or under-medication during
critical years of cognitive, psychosocial and behavioral maturation in this large cohort of children.
As seizures are thought to result from abnormal cortical excitability and connectivity, Dr. Chu hypothesizes that
principled measures of these properties using available non-invasive techniques will identify clinically relevant
biomarkers of seizure risk. Dr. Chu has developed preliminary results supporting the feasibility of her proposed
approach. Under the joint mentorship of leading translational researchers Drs. Kevin Staley, Sydney Cash and
Steven Stufflebeam at MGH, Dr. Chu proposes to first evaluate children with BECTS with active epilepsy and
in remission in a cross-sectional study to identify candidate cortical biomarkers for seizure risk using advanced
EEG and MRI techniques. She will then assess the utility of adding longitudinal data to the predictive models
by re-studying the subjects in the cross sectional dataset one year after initial evaluation. The knowledge
gained by these studies will lead to: 1) quantification of the physiological and anatomical processes associated
with increased seizure risk in childhood epilepsy; 2) identification of candidate biomarkers of seizure risk which
may have broader relevance to other epilepsies; 3) the development of novel tools and advanced expertise to
identify and quantify these processes; and 4) preliminary data for an R01-funded clinical trial to test non-
invasive biomarkers of seizure risk in childhood epilepsy. The career development program outlined in this
proposal provides the candidate with advanced training in multimodal imaging techniques, prospective clinical
research, and biostatistics in an o...

## Key facts

- **NIH application ID:** 10124864
- **Project number:** 3K23NS092923-05S1
- **Recipient organization:** MASSACHUSETTS GENERAL HOSPITAL
- **Principal Investigator:** Catherine J Chu
- **Activity code:** K23 (R01, R21, SBIR, etc.)
- **Funding institute:** NIH
- **Fiscal year:** 2020
- **Award amount:** $46,680
- **Award type:** 3
- **Project period:** 2020-04-01 → 2020-11-30

## Primary source

NIH RePORTER: https://reporter.nih.gov/project-details/10124864

## Citation

> US National Institutes of Health, RePORTER application 10124864, Identification of Cortical Biomarkers for Seizure Risk in Childhood Epilepsy (3K23NS092923-05S1). Retrieved via AI Analytics 2026-05-24 from https://api.ai-analytics.org/grant/nih/10124864. Licensed CC0.

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