A Trial of Two Fixed Doses of ZX008 (Fenfluramine HCl) in Children and Young Adults With Dravet Syndrome

NCT02682927 · Status: COMPLETED · Phase: PHASE3 · Type: INTERVENTIONAL · Enrollment: 262

Last updated 2023-09-28

Study results available
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Summary

Study 1 and Study 3 are the prospective, merged analyses of 2 identical double-blind, placebo-controlled studies, ZX008-1501 and ZX008-1502, to assess the efficacy, safety, and pharmacokinetics of ZX008 when used as adjunctive therapy in pediatric and young adult subjects with Dravet syndrome. Study 1501 and Study 1502 were conducted in parallel; Study 1501 was conducted at approximately 30 study sites in North America; Study 1502 was conducted at approximately 30 study sites in Europe, Asia and Australia. Upon completion of the Baseline Period after initial Screening and Baseline charting of seizure frequency, subjects who qualified for the studies were randomized (1:1:1) in a double-blind manner to receive either 1 of 2 doses of ZX008 (0.2 mg/kg/day or 0.8 mg/kg/day; maximum dose: 30 mg/day) or placebo. Randomization was stratified by age group (\< 6 years, ≥6 to 18 years) to achieve balance across treatment arms, with the target of 25% of subjects in each age group. All subjects were titrated to their randomized dose over a 14-day Titration Period. Following titration, subjects continued treatment at their randomly assigned dose over a 12-week Maintenance Period. Subjects exiting the study underwent a 2-week taper, unless they enrolled in a follow-on study. Subjects were followed for post-study safety monitoring.

Conditions

Interventions

DRUG

ZX008 (Fenfluramine Hydrochloride)

ZX008 drug product is an oral aqueous solution of fenfluramine hydrochloride buffered to pH 5. The product is sugar free and is intended to be compatible with a ketogenic diet.

DRUG

Matching Placebo

Placebo solution for ZX008. The product is sugar free and is intended to be compatible with a ketogenic diet.

Sponsors & Collaborators

  • Zogenix International Limited, Inc., a subsidiary of Zogenix, Inc.

    lead INDUSTRY

Principal Investigators

  • UCB Cares · 001 844 599 2273

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
QUADRUPLE
Model
PARALLEL

Eligibility

Min Age
2 Years
Max Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2016-01-15
Primary Completion
2020-07-29
Completion
2020-07-29
FDA Drug
Yes

Countries

  • United States
  • Australia
  • Belgium
  • Canada
  • Denmark
  • France
  • Germany
  • Italy
  • Japan
  • Spain
  • United Kingdom

Study Locations

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Entities

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT02682927 on ClinicalTrials.gov