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Four-week Study of the Safety and Efficacy of NLS-2 (Mazindol Extended Release) in the Treatment of Narcolepsy

A Four-week, Double-blind, Placebo-controlled, Randomized, Multicenter, Parallel-group Study of the Safety and Efficacy of NLS-2 (Mazindol Extended Release) in Adults for the Treatment of Narcolepsy

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04923594
Enrollment
67
Registered
2021-06-11
Start date
2021-09-13
Completion date
2022-06-30
Last updated
2022-08-12

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

Conditions

Cataplexy Narcolepsy, Excessive Daytime Sleepiness, Narcolepsy

Brief summary

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.

Interventions

DRUGmazindol extended release

Dosed orally, once daily for up to 3 weeks

DRUGPlacebo

Dosed orally, once daily for up to 4 weeks.

Sponsors

NLS Pharmaceutics
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
No

Inclusion criteria

Key Inclusion Criteria: * Males and females between 18 and 65 years of age, inclusive * Diagnosis of narcolepsy according to ICSD-3 (International Classification of Sleep Disorders, 3rd Edition) or Diagnostic and Statistical Manual of Mental Disorders, 5th Edition (DSM-5) criteria * Body mass index from 18 to 40 kg/m2, inclusive * Consent to use a medically acceptable method of contraception * Willing and able to provide written informed consent Key

Exclusion criteria

* Female subjects who are pregnant, nursing, or lactating * Any other clinically relevant medical, behavioral, or psychiatric disorder other than narcolepsy that is associated with excessive sleepiness * History or presence of bipolar disorder, bipolar related disorders, schizophrenia, schizophrenia spectrum disorders, or other psychotic disorders according to DSM-5 criteria * Use of any over-the-counter (OTC) or prescription medications that could affect the evaluation of excessive sleepiness * Use of any medications that could affect the evaluation of cataplexy * Received an investigational drug in the past 30 days or five half-lives (whichever is longer)

Design outcomes

Primary

MeasureTime frameDescription
Change in ESS Score From Baseline to Week 4Baseline to Week 4Change 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.

Secondary

MeasureTime frameDescription
Subjects Reported Improved on the Patient Global Impression of Change (PGIc) at Week 4Baseline to Week 4Percentage 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

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 9, 2026