A Phase 2 interventional study of mazindol extended release and Placebo in Narcolepsy, Excessive Daytime Sleepiness and Cataplexy Narcolepsy, sponsored by NLS Pharmaceutics. Completed at 22 sites in United States. Open to participants aged 18 Years to 65 Years. Per ClinicalTrials.gov, last updated 2022-08-12.
Sponsored by NLS Pharmaceutics · Phase 2, Interventional, and Treatment
This is a double-blind, randomized, placebo-controlled, multicenter trial of NLS-2 in adult patients with narcolepsy. The study will enroll approximately 60 patients and eligible patients will be treated to receive either NLS-2 or placebo for 4-weeks.
157 studies on the registry are indexed under Narcolepsy; 37 are open to participants now.
This study's enrollment of 67 is below the median of 78 across 114 interventional studies indexed under Narcolepsy.
Browse Narcolepsy studies →NLS Pharmaceutics is the lead sponsor of 4 studies on the registry; 1 is open to participants now.
Counted across the registry records on this site, refreshed daily.
Key Inclusion Criteria:
Key Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
The American Psychiatric Association’s manual of mental health diagnoses. DSM-5 (2013, revised as DSM-5-TR in 2022) replaced DSM-IV, and some studies still name the older edition. “Meets DSM criteria for …” means diagnosed by that edition’s diagnostic criteria, usually by a clinician in an interview.
Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.
What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.
Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.
Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.
A drug or device being studied in a clinical trial.
It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.
DSM diagnostic criteria
The American Psychiatric Association’s manual of mental health diagnoses. DSM-5 (2013, revised as DSM-5-TR in 2022) replaced DSM-IV, and some studies still name the older edition. “Meets DSM criteria for …” means diagnosed by that edition’s diagnostic criteria, usually by a clinician in an interview.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
BMI (body mass index)
Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.
What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Contraception
Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.
Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Clinically significant
Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Investigational drug or device
A drug or device being studied in a clinical trial.
It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
2 mg dosed orally, once daily for 1 week; followed by 3 mg dosed orally, once daily for up to 3 weeks (total of 4 weeks)
Drug: mazindol extended release
Dosed orally, once daily for up to 4 weeks
Drug: Placebo
Dosed orally, once daily for up to 3 weeks
Also known as: NLS-2
Dosed orally, once daily for up to 4 weeks.
Change in ESS Score From Baseline to Week 4
Change in Epworth Sleepiness Scale (ESS) score from Baseline to Week 4. A negative change from baseline represents improvement in excessive sleepiness. The ESS is a self-administered questionnaire with 8 questions. 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.
Time frame: Baseline to Week 4
Subjects Reported Improved on the Patient Global Impression of Change (PGIc) at Week 4
Percentage of subjects reported as improved (minimally, much, or very much) on the PGIc at Week 4. PGIc is rated by subjects and measures the change in their condition since treatment starts on a 7-point scale ranging from 1= very much improved to 7= very much worse
Time frame: Baseline to Week 4
Plan to share: No
No publications or documents are linked to this record.
Ran from Sep 2021 to primary completion in Jun 2022, 9 months.
Of 15 phase 2 interventional studies under Narcolepsy, half reached primary completion within 14 months of starting (the median), counting those still running; a quarter within 11 and three quarters within 44. This study's 9 months is below that.
How these figures are worked out, and which studies are left out of them.
This study is completed, as verified in Aug 2022. You cannot join it, but the record below documents what was studied.
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Studies of the drug tested here: Mazindol
NLS Pharmaceutics