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Search / Trial NCT03030599

A Study of the Efficacy and Safety of JZP-258 in Subjects With Narcolepsy With Cataplexy

Launched by JAZZ PHARMACEUTICALS · Jan 24, 2017

Trial Information

Current as of June 20, 2025

Completed

Keywords

ClinConnect Summary

Subjects will be transitioned to JZP-258 based on their treatment status at study entry. All subjects will begin JZP-258 treatment at the beginning of this period and continue through Week 12. They will be treated with JZP-258 alone for the final two weeks of this 12-week period. Once the JZP-258 dose has been optimized per the Investigator's judgment, these subjects may enter the 2-week Stable-Dose Period with that dose. Subjects are eligible to enter the Double-Blind Randomized-Withdrawal Period if the dose of JZP-258 remains unchanged during the Stable-Dose Period and, in the judgment of...

Gender

ALL

Eligibility criteria

  • Inclusion Criteria:
  • 1. Male or female subjects between 18 and 70 years of age, inclusive.
  • 2. Have a primary diagnosis of narcolepsy with cataplexy that meets ICSD-3 criteria or DSM-5 criteria, and currently untreated or treated with or without anticataplectics.
  • 3. If applicable, treated with a stimulant or alerting agent at unchanged doses for at least 2 months prior to dosing or not treated with a stimulant or alerting agent.
  • 4. Willing and able to comply with the study design schedule and other requirements.
  • 5. Willing and able to provide written informed consent.
  • Exclusion Criteria:
  • 1. Narcolepsy secondary to another medical condition (e.g., CNS injury or lesion)
  • 2. History or presence of any unstable or clinically significant medical condition, behavioral or psychiatric disorder (including active suicidal ideation), or history or presence of another neurological disorder or surgical history that might affect the subject's safety and/or interfere with the conduct of the study in the opinion of the Investigator.
  • 3. Treatment with any central nervous system sedating agents, including but not limited to benzodiazepines, nonbenzodiazepine anxiolytics/ hypnotics/sedatives, neuroleptics, opioids, barbiturates, phenytoin, ethosuximide, or MCT inhibitors, e.g. diclofenac, valproate, ibuprofen, within 2 weeks prior to enrollment (discontinuation for the purpose of study enrollment is permitted only if considered safe by the Investigator and approved by the Medical Monitor).
  • 4. Treatment with an antidepressant for cataplexy, if the withdrawal of the antidepressant during cross-titration with JZP-258 might be unsafe due to prior history of depression.
  • 5. Unsafe for the subject to receive placebo treatment for 2 weeks, in the opinion of the Investigator.

About Jazz Pharmaceuticals

Jazz Pharmaceuticals is a global biopharmaceutical company dedicated to identifying, developing, and commercializing innovative therapies that address unmet medical needs in various therapeutic areas, including sleep disorders, neurology, and hematology. With a strong commitment to advancing patient care, Jazz Pharmaceuticals leverages cutting-edge research and development to deliver transformative medicines that improve the quality of life for patients. The company emphasizes collaboration and integrity in its clinical trials, striving to ensure robust scientific rigor and ethical standards throughout its research endeavors. Through its innovative approaches and patient-centric focus, Jazz Pharmaceuticals aims to make a meaningful impact in the lives of those it serves.

Locations

Fort Wayne, Indiana, United States

Barcelona, , Spain

Gent, , Belgium

Leuven, , Belgium

Edegem, , Belgium

Barcelona, , Spain

Gent, Oost Vlaanderen, Belgium

Praha 2, , Czechia

Louisville, Kentucky, United States

Kissimmee, Florida, United States

Cincinnati, Ohio, United States

Montpellier, Herault, France

Orange, California, United States

Stanford, California, United States

Boulder, Colorado, United States

Chevy Chase, Maryland, United States

Bronx, New York, United States

Gastonia, North Carolina, United States

Huntersville, North Carolina, United States

Cleveland, Ohio, United States

Ostrava Poruba, , Czechia

Helsinki, , Finland

Lille, , France

Castelló, , Spain

Madrid, , Spain

Madrid, , Spain

Leuven, Herestraat 49, Belgium

Patients applied

0 patients applied

Trial Officials

Director Clinical Trial Disclosure & Transparency

Study Director

Jazz Pharmaceuticals

Timeline

First submit

Trial launched

Trial updated

Estimated completion

Not reported

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