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Narcolepsy With CataplexyPhase 3NCT02221869

A Multicenter Study of the Efficacy and Safety of Xyrem With an Open- Label Pharmacokinetic Evaluation and Safety Extension in Pediatric Subjects With Narcolepsy With Cataplexy

A Phase 3 study testing Xyrem in people with Narcolepsy With Cataplexy, run by Jazz Pharmaceuticals at 20 sites in 4 countries.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The purpose of this trial is to assess the efficacy and safety of Xyrem in pediatrics subjects with narcolepsy that includes cataplexy. Read more about this study

Who is it for?
Ages 7 to 17 years
Conditions the study is for
Narcolepsy With Cataplexy
What is being tested?
Xyrem
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
106 participants
Where
20 sitesin 4 countries
Study dates
1 Oct 2014to 25 Jan 2019
Phase
Phase 3
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 7 to 17 years
  • All sexes
  • No healthy volunteers
  • Child

Who may be able to join

  • Male or female subjects aged 7-16 years at Visit 2 for subjects on Xyrem at study entry and at Visit 1.1 for Xyrem-naïve subjects (to ensure subjects are <18 years of age at the end of the study)
  • Have a primary diagnosis of narcolepsy with cataplexy that meets International Classification of Sleep Disorders (ICSD)-2 or ICSD-3 criteria, whichever was in effect at the time of the diagnosis or, with the permission of the Medical Monitor, completes a Multiple Sleep Latency Test (MSLT) during Screening to confirm the diagnosis of Type 1 narcolepsy by ICSD-3 criteria (i.e., the subject meets all other ICSD-3 criteria for Type 1 narcolepsy)
  • Have given documented assent indicating that he/she was aware of the investigational nature of the study and the required procedures and restrictions before participation in any protocol-related activities
  • Have parent(s)/guardian(s) who have given informed consent for his/her/their child's participation in the study
  • Be willing to spend the required number of nights (2 to 3) in a sleep laboratory for PSG evaluations
  • If currently treated with Xyrem, must have been taking unchanged doses (twice nightly dosing no higher than 9 g/night) of Xyrem, and stimulants, if applicable, for the treatment of narcolepsy symptoms for at least 2 months prior to screening
Show all 9Show fewer
  • In addition to the above inclusion criteria, subjects participating in the PK evaluation must meet the following inclusion criteria:
  • 7. Be willing to spend 2 additional nights in the clinic for PK evaluation
  • -

Who cannot join

  • Inability to understand assent or follow study instructions for any reason, in the opinion of the Investigator
  • Parent(s) or guardian(s) unable to comply with the requirements of the study for any reason, in the opinion of the Investigator
  • Other documented clinically significant condition (including an unstable medical condition, chronic disease other than narcolepsy with cataplexy, or history or presence of another neurological disorder) that might affect the subject's safety and/or interfere with the conduct of the study in the opinion of the Investigator
  • Treatment with benzodiazepines, non-benzodiazepine anxiolytics/ hypnotics/sedatives, neuroleptics, opioids, barbiturates, diclofenac, valproate, phenytoin, ethosuximide 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)
  • Treatment with any other medications that have anticataplectic effect (e.g., serotonin-norepinephrine reuptake inhibitors [SNRIs], selective serotonin reuptake inhibitors [SSRIs], or tricyclic antidepressants [TCAs]) within 1 month before Screening
  • Unsafe for the subject to receive placebo treatment for 2 weeks, in the opinion of the Investigator
  • In addition to the above exclusion criteria, subjects participating in the PK evaluation must not demonstrate the following:
  • -

Trial locations and contacts

20 sites in 4 countries.

20 sites in 4 countries

United States17 sites
  • The U-M Sleep Disorders Center

    Ann Arbor, Michigan, 48109

  • Ann & Robert H. Lurie Children's Hospital of Chicago

    Chicago, Illinois, 60611

  • Cincinnati Children's Hospital Medical Center

    Cincinnati, Ohio, 45229

  • University Hospitals Cleveland Medical Center

    Cleveland, Ohio, 44106

  • SleepMed of SC

    Columbia, South Carolina, 29201

  • Nationwide Children's Hospital

    Columbus, Ohio, 43205

  • Duke Children's Hospital

    Durham, North Carolina, 27710

  • Greenville Health System

    Greenville, South Carolina, 29615

  • Todd Swick, MD, PA

    Houston, Texas, 77063

  • ARSM Research, LLC

    Huntersville, North Carolina, 28078

  • Miller Children's Hospital - Long Beach

    Long Beach, California, 90806

  • UT/LeBonheur Neuroscience Institute

    Memphis, Tennessee, 38105

  • Children's Hospital of The King's Daughters

    Norfolk, Virginia, 23507

  • SDS Clinical Trials, Inc.

    Orange, California, 92868

  • Stanford Sleep Medicine Center

    Redwood City, California, 94063

  • Seattle Children's Hospital

    Seattle, Washington, 98105

  • Montefiore Medical Center

    The Bronx, New York, 10467

Other trials in United States

France1 site
  • Hospital Robert Debre

    Paris, 75019

Other trials in France

Italy1 site
  • Dipartimento di Scienze Biomediche e Biomotorie

    Bologna, 40139

Other trials in Italy

Netherlands1 site
  • Sleep Wake Center SEIN Heemstede

    Heemstede, North Holland, 2103 SW

Other trials in Netherlands

About this study

The purpose of this trial is to assess the efficacy and safety of Xyrem in pediatrics subjects with narcolepsy that includes cataplexy.

Being tested
Xyrem
Medical subject headings
Narcolepsy

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • XyremDrug

Study groups in NCT02221869
Study groupRoleWhat they receive
XyremExperimentalActive Xyrem at a dose ≤9 g/night
Receives: Drug: Xyrem
Xyrem PlaceboPlacebo comparatorXyrem placebo at a volume and regimen equivalent to the stable dose of Xyrem.
Receives: Drug: Xyrem

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Change in Weekly Number of Cataplexy Attacks

    Double-blind comparison of the change in weekly number of cataplexy attacks from the last 2 weeks of the Stable Dose Period to the 2 weeks of the Double-blind Treatment Period.

    Measured: From the end of the Stable Dose Period to the end of the Double-blind Treatment Period (2 weeks)

Secondary outcomes (4)
  1. Clinical Global Impression of Change (CGIc) for Cataplexy Severity

    CGIc for cataplexy severity from the end of the Stable Dose Period to the end of the Double-blind Treatment Period.

    The CGIc is a 7-point scale ranging from "very much improved" to "very much worse." A score of 0 = no change, a score of 3 = very much improved, and a score of -3 = very much worse.

    Measured: From the end of the Stable Dose Period to the end of the Double-blind Treatment Period (2 weeks)

  2. Change in the Epworth Sleepiness Scale (ESS) (CHAD) Score

    Change in the ESS (CHAD) score from the end of the Stable Dose Period to the end of the Double-blind Treatment Period.

    The ESS is a self-administered questionnaire with 8 questions. It provides a measure of a person's general level of daytime sleepiness, or their average sleep propensity in daily life. In the ESS for children and adolescents (CHAD), certain activities were modified. Each activity is scored on a scale ranging from 0-3, with 0 = would never fall asleep, and 3 = high chance of falling asleep. The total score ranges from 0-24, with a higher number representing an increased propensity for sleepiness.

    Measured: From the end of the Stable Dose Period to the end of the Double-blind Treatment Period (2 weeks)

  3. CGIc for Narcolepsy Overall

    CGIc for narcolepsy overall from the end of the Stable Dose Period to the end of the Double-blind Treatment Period.

    The CGIc is a 7-point scale ranging from "very much improved" to "very much worse." A score of 0 = no change, a score of 3 = very much improved, and a score of -3 = very much worse.

    Measured: From the end of the Stable Dose Period to the end of the Double-blind Treatment Period (2 weeks)

  4. Change in Quality of Life (QoL; SF-10 Physical and Psychosocial Summary Score) From the End of the Stable Dose Period to the End of the Double-blind Treatment Period

    The SF-10 Health Survey for Children is a parent-completed survey that contains 10 questions adapted from the Child Health Questionnaire. The SF-10 is intended to produce physical and psychosocial health summary measures. Each of the 10 questions responses is scored with a point value from 1 to 6 (1 is the worst possible condition and 6 is the best possible condition). The SF-10 physical and psychosocial measures are scored such that higher scores indicate more favorable functioning.

    The questions and associated point values are separated into the Physical Health (PHS-10 domain) and Psychosocial Health (PSS-10 domain). The sums of the scores in each domain are standardized using the mean and standard deviation from a normal population (2006 sample). The standardized scores are transformed to norm based scoring (NBS) metric. Through NBS, scale scores are standardized to a mean of 50 and SD of 10 in the combined U.S. general population and clinical samples. NBS scores are reported

    Measured: From the end of the Stable Dose Period to the end of the Double-blind Treatment Period (2 weeks)

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted21 Aug 2014 (estimated)
  2. Study start1 Oct 2014
  3. Primary completionFeb 2017
  4. Study completion25 Jan 2019

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
106 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02221869
Sponsor's protocol ID
13-005
Status last verified
Apr 2019
First submitted
28 Jul 2014
Last updated
30 Apr 2019
Data monitoring committee
Yes

Publications

  • Dauvilliers Y, Lammers GJ, Lecendreux M, Maski K, Kansagra S, Black J, Parvataneni R, Chen A, Wang YG, Plazzi G. Effect of sodium oxybate on body mass index in pediatric patients with narcolepsy. J Clin Sleep Med. 2024 Mar 1;20(3):445-454. doi: 10.5664/jcsm.10912.

    PubMed 37942930
  • Lecendreux M, Plazzi G, Dauvilliers Y, Rosen CL, Ruoff C, Black J, Parvataneni R, Guinta D, Wang YG, Mignot E. Long-term safety and maintenance of efficacy of sodium oxybate in the treatment of narcolepsy with cataplexy in pediatric patients. J Clin Sleep Med. 2022 Sep 1;18(9):2217-2227. doi: 10.5664/jcsm.10090.

    PubMed 35689598
  • Wang YG, Menno D, Chen A, Steininger TL, Morris S, Black J, Profant J, Johns MW. Validation of the Epworth Sleepiness Scale for Children and Adolescents (ESS-CHAD) questionnaire in pediatric patients with narcolepsy with cataplexy aged 7-16 years. Sleep Med. 2022 Jan;89:78-84. doi: 10.1016/j.sleep.2021.11.003. Epub 2021 Nov 11.

    PubMed 34920345
  • Plazzi G, Ruoff C, Lecendreux M, Dauvilliers Y, Rosen CL, Black J, Parvataneni R, Guinta D, Wang YG, Mignot E. Treatment of paediatric narcolepsy with sodium oxybate: a double-blind, placebo-controlled, randomised-withdrawal multicentre study and open-label investigation. Lancet Child Adolesc Health. 2018 Jul;2(7):483-494. doi: 10.1016/S2352-4642(18)30133-0. Epub 2018 May 21.

    PubMed 30169321

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Xyrem in people with Narcolepsy With Cataplexy, run by Jazz Pharmaceuticals at 20 sites in 4 countries.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 9 inclusion and 8 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 30 Apr 2019. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 20 sites in United States, France, Italy, Netherlands. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 30 Apr 2019). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Change in Weekly Number of Cataplexy Attacks (time frame: From the end of the Stable Dose Period to the end of the Double-blind Treatment Period (2 weeks)). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT02221869, which also lists 4 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 30 Apr 2019.

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