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A long-duration study to assess the safety and effectiveness of NBI-827104 in children with Epileptic Encephalopathy with Continuous Spike-and-Wave During Sleep.

Long-Term, Open-Label Extension Study to Evaluate the Safety and Tolerability of NBI-827104 in Pediatric Subjects with Epileptic Encephalopathy with Continuous Spike-and-Wave During Sleep - NBI-827104-CSWS2025

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2021-006788-11-DK
Enrollment
24
Registered
2022-02-11
Start date
2022-03-25
Completion date
Unknown
Last updated
2025-03-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Epileptic Encephalopathy with Continuous Spike-and-Wave During Sleep (EECSWS) MedDRA version: 20.0 Level: PT Classification code 10077380 Term: Epileptic encephalopathy System Organ Class: 10029205 - Nervous system disorders

Interventions

Sponsors

Neurocrine Biosciences, Inc.
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. Completed 12 weeks of treatment in Study NBI-827104-CSWS2010. 2. For subjects who did not participate in Study NBI-827104-CSWS2010, they must have a diagnosis of EECSWS including confirmation by the Diagnosis Confirmation Panel. Are the trial subjects under 18? yes Number of subjects for this age range: 24 F.1.2 Adults (18-64 years) no F.1.2.1 Number of subjects for this age range F.1.3 Elderly (>=65 years) no F.1.3.1 Number of subjects for this age range

Exclusion criteria

Exclusion criteria: 1. Planned surgical intervention related to structural abnormalities of the brain from screening through the Week 6 Visit. 2. Used any active investigational drug other than NBI-827104 in the context of a clinical study within 30 days or 5 half-lives (whichever is longer) before Day 1 or plans to use such an investigational drug (other than NBI-827104) during the study. 3. Have developed any other disorder for which the treatment takes priority over treatment of EECSWS or is likely to interfere with study treatment or impair treatment compliance. 4. For subjects who did not participate in NBI-827104-CSWS2010, they must meet the above exclusion criteria in addition to the following (4-6): presence of relevant neurological disorders other than EECSWS and its underlying conditions as judged by the investigator. Symptomatic conditions underlying EECSWS (eg, neonatal strokes) have to be stable for at least 1 year prior to screening. 5. Body weight = 15 kg at Day 1 6. Clinically relevant findings related to cardiovascular or laboratory parameters at screening as determined by the investigator.

Design outcomes

Primary

MeasureTime frame
Main Objective: To evaluate the long-term safety and tolerability of NBI-827104 in pediatric subjects with epileptic encephalopathy with continuous spike-and-wave during sleep (EECSWS);Secondary Objective: Not applicable;Primary end point(s): The occurrence of serious Treatment-emergent adverse event (TEAEs);Timepoint(s) of evaluation of this end point: Up to 242 weeks.

Secondary

MeasureTime frame
Secondary end point(s): Not applicable;Timepoint(s) of evaluation of this end point: Not applicable

Countries

Denmark, Germany, Spain, Switzerland, United Kingdom, United States

Contacts

Public ContactRegulatory Unit

Accelsiors CRO and Consultancy Services Ltd.

regulatory@accelsiors.com+361299 0091

Outcome results

None listed

Source: EU CTR (via WHO ICTRP) · Data processed: Feb 4, 2026