A Study to Investigate the Safety, Tolerability, Pharmacokinetics, and Clinical Activity of ABS-1230 in Pediatric and Young Adult Participants With KCNT1-related Epilepsy (KYRON)

August 5, 2026 updated by: Actio Biosciences, Inc.

A Phase 1b/2 Study to Assess the Safety, Tolerability, Pharmacokinetics, and Clinical Activity of ABS-1230 Administered to Pediatric and Young Adult Participants With KCNT1-Related Epilepsy

This trial will evaluate the safety, tolerability, pharmacokinetics, and clinical activity of ABS-1230 compared with placebo in participants with KCNT1-related epilepsy

Study Overview

Status

Recruiting

Conditions

Intervention / Treatment

Detailed Description

This is a Phase 1b/2 study that consists of 3 parts.

In part 1, participants will receive ABS-1230 for 12 weeks, with a follow-up period of 2 weeks.

In part 2, participants will receive ABS-1230 or placebo for 12 weeks, with a follow-up period of 2 weeks.

All participants who complete part 1 or part 2 will have the option to continue receiving ABS-1230 in an open-label extension study (part 3).

Study Type

Interventional

Enrollment (Estimated)

55

Phase

  • Phase 2

Contacts and Locations

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

Study Contact

Study Locations

  • United States
    • New Jersey
      • Hackensack, New Jersey, United States, 07601
        • Recruiting
        • Northeast Regional Epilepsy Group
        • Principal Investigator:
          • Eric Segal, MD
        • Contact:

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

Ages Eligible for Study

  • Child
  • Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Aged 1 month to <22 years
  • Clinician-confirmed diagnosis of KCNT1-related epilepsy
  • Has an average of at least 4 countable motor seizures per week
  • Is taking no more than 6 antiseizure medications (ASM) and is able to keep stable doses of ASMs for the duration of Part 1 or Part 2

Exclusion Criteria:

  • Is currently taking phenytoin, carbamazepine, stiripentol, or quinidine
  • Has a medical condition that, in the opinion of the investigator, would limit the participant's ability to participate in the study or might compromise participant safety or interfere with evaluation of the study drug.

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: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Triple

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: ABS-1230 (Part 1)
Drug: ABS-1230
Daily
Experimental: ABS-1230 (Part 2)
Drug: ABS-1230
Daily
Experimental: Placebo (Part 2)
Drug: Placebo
Daily
Experimental: ABS-1230 (Part 3)
Drug: ABS-1230
Daily

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Part 1: Safety and tolerability of ABS-1230 (incidence and severity of adverse events)
Time Frame: Measured from Day 1 to End of Study or Early Termination (up to 12 weeks)
Safety and tolerability of ABS-1230 by determining the incidence and severity of treatment emergent adverse events
Measured from Day 1 to End of Study or Early Termination (up to 12 weeks)
Part 2: Efficacy of ABS-1230
Time Frame: Measured from Day 1 to End of Study or Early Termination (up to 12 weeks)
Percentage change from baseline in countable motor seizures (normalized per 28 days) as recorded in the seizure diary
Measured from Day 1 to End of Study or Early Termination (up to 12 weeks)
Part 3: Safety and tolerability of ABS-1230 (incidence and severity of adverse events)
Time Frame: Measured from Day 1 of Part 3 to End of Study or Early Termination (up to 1 year)
Safety and tolerability of ABS-1230 by determining the incidence and severity of treatment emergent adverse events
Measured from Day 1 of Part 3 to End of Study or Early Termination (up to 1 year)

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Maximum Plasma Concentration [Cmax] of ABS-1230
Time Frame: Measured from Day 1 to End of Study or Early Termination (up to 12 weeks)
Pharmacokinetics of ABS-1230
Measured from Day 1 to End of Study or Early Termination (up to 12 weeks)
Total Exposure [AUCtau] ABS-1230
Time Frame: Measured from Day 1 to End of Study or Early Termination (up to 12 weeks)
Pharmacokinetics of ABS-1230
Measured from Day 1 to End of Study or Early Termination (up to 12 weeks)

Collaborators and Investigators

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

Sponsor

Actio Biosciences, Inc.

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)

May 18, 2026

Primary Completion (Estimated)

January 1, 2027

Study Completion (Estimated)

January 1, 2028

Study Registration Dates

First Submitted

May 14, 2026

First Submitted That Met QC Criteria

May 14, 2026

First Posted (Actual)

May 22, 2026

Study Record Updates

Last Update Posted (Actual)

August 7, 2026

Last Update Submitted That Met QC Criteria

August 5, 2026

Last Verified

August 1, 2026

More Information

Terms related to this study

Other Study ID Numbers

  • ABS1230-1101

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

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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