Personalized Antisense Oligonucleotide Therapy for Rare Pediatric Genetic Disease: SCN2A

March 26, 2025 updated by: Olivia Kim-McManus, University of California, San Diego
This research project entails delivery of a personalized antisense oligonucleotide (ASO) drug designed for a single pediatric participant with SCN2A associated developmental epileptic encephalopathy

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Active, not recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

This is an interventional study to evaluate the safety and efficacy of treatment with an individualized antisense oligonucleotide (ASO) treatment in a single pediatric participant with a de novo pathogenic gain of function SCN2A mutation associated with severe developmental epileptic encephalopathy.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
1

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 2
  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • California
      • San Diego, California, United States, 92123
        • Rady Children's Hospital

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Child
  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Informed consent provided by the participant's parent(s)/guardian(s)
  • Ability to travel to the study site, adhere to study-related follow-up examinations and/or procedures, and provide access to participant's medical records.
  • Genetically confirmed mutation

Exclusion Criteria:

• Use of an investigational medication within less than 5 half-lives of the drug at enrollment

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Open label
Drug: nL-SCN2A-002
Personalized antisense oligonucleotide

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Seizure frequency
Time Frame: Baseline to 24 months
As measured by caregiver provided seizure diary
Baseline to 24 months
Motor function as measured by Dyskinetic Cerebral Palsy Functional Impact Scale
Time Frame: Baseline to 24 months
The Dyskinetic Cerebral Palsy Functional Impact Scale (D-FIS) is an 18 item caregiver questionnaire that evaluates the impact of dyskinesia on daily functions. It is a validated assessment tool for children aged 2 years and 6 months to 18 years. It uses a 5-point ordinal scale, from 0 (no impact) to 4 (extreme impact), for each item and derives a total score from summing all 18 items. A higher score indicates more severe impact of dyskinesia and worse motor functioning.
Baseline to 24 months
Motor function as measured by the motor skills domain of Vineland Adaptive Behavior Scales
Time Frame: Baseline to 24 months
The Vineland Adaptive Behavior Scales, Third Edition (Vineland-3), is a standardized, validated, and reliable assessment tool designed to measure the adaptive behavior of individuals from birth through adulthood. The Vineland-3 Motor Skills domain evaluates gross and fine motor abilities in individuals from birth to age 9, offering insights into coordination, balance, mobility, and dexterity. The raw scores are converted to standard scores and growth scale value scores, with higher scores indicating better adaptive functioning.
Baseline to 24 months
Motor function as measured by the motor skills domain of Bayley Scales of Infant and Toddler Development
Time Frame: Baseline to 24 months
The Bayley Scales of Infant and Toddler Development is a standardized, validated, and reliable assessment tool for evaluating developmental functioning in infants and toddlers. Its Motor Skills domain evaluates gross and fine motor abilities, including coordination, balance, and movement. The raw scores are converted to standard scores and growth scale value scores, with higher scores indicating better motor development.
Baseline to 24 months
Gastrointestinal assessment as measured by the Bristol Stool Chart
Time Frame: Baseline to 24 months
The Bristol Stool Chart categorizes human feces into seven types, from Type 1 (severe constipation) to Type 7 (diarrhea), with Types 3 and 4 considered normal.
Baseline to 24 months

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Neurodevelopmental Function as measured by Aberrant Behavior Checklist
Time Frame: Baseline to 24 months
The Aberrant Behavior Checklist (ABC) is an empirically developed scale tailored to measure psychiatric symptoms and behavioral disturbances in individuals with Intellectual and Developmental Disabilities (IDD). It contains five domains: Irritability, Agitation, & Crying; Lethargy/Social Withdrawal; Stereotypic Behavior; Hyperactivity/Noncompliance; and Inappropriate Speech. Each question is scored on a 4-point scale (0 = not a problem to 3 = severe problem) to assess severity. Total scores per subscale reflect the extent of behavioral challenges, with higher scores indicating greater severity.
Baseline to 24 months
Neurodevelopmental Function as measured by Observer-Reported Communication Ability Measure
Time Frame: Baseline to 24 months
The Observer-Reported Communication Ability (ORCA) Measure is a questionnaire assessing communication abilities in individuals with neurodevelopmental disorders, significantly impacting verbal speech. It includes 84 questions, with 70 behavioral items across 22 concepts/functions and 14 descriptive items about individual communication methods, covering expressive, receptive, and pragmatic communication areas. The ORCA is validated for Angelman and Rett syndromes and is being evaluated for other disorders. The ORCA T-score ranges from 25.8 to 83.8, with higher ORCA T-scores indicate greater communication ability.
Baseline to 24 months
Neurodevelopmental Function as measured by the Vineland Adaptive Behavior Scales
Time Frame: Baseline to 24 months
The Vineland Adaptive Behavior Scales, Third Edition (Vineland-3), is a standardized, validated, and reliable assessment tool designed to measure the adaptive behavior of individuals from birth through adulthood through multiple domains, including communication and socialization. The raw scores are converted to standard scores and growth scale value scores, with higher scores indicating better adaptive functioning.
Baseline to 24 months
Neurodevelopmental Function as measured by the Bayley Scales of Infant and Toddler Development
Time Frame: Baseline to 24 months
The Bayley Scales of Infant and Toddler Development is a standardized, validated, and reliable assessment tool for evaluating developmental functioning in infants and toddlers across subdomains of cognition and language (receptive and expressive communication). The raw scores are converted to standard scores and growth scale value scores, with higher scores indicating better neurodevelopment.
Baseline to 24 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
University of California, San Diego

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
California Institute for Regenerative Medicine (CIRM)
n-Lorem Foundation

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Olivia Kim-McManus, M.D., UCSD Rady Children's Hospital

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
February 16, 2024

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
February 16, 2026

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
February 16, 2026

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
March 1, 2024

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
March 14, 2024

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
March 18, 2024

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
April 1, 2025

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
March 26, 2025

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
March 1, 2025

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • ASOSCN2A

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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