Actively Recruiting

Phase 3
Age: 18Years - 70Years
All Genders
ID07502443

A Phase 3, Randomized, Double-Blind, Placebo-Controlled Study to Evaluate the Efficacy and Safety of ALKS 2680 in Adults With Narcolepsy Type 2 (Brilliance NT2 Study 303)

Led by Alkermes, Inc. · Updated on 2026-05-26

176

Participants Needed

8

Research Sites

4 weeks

Total Duration

On this page

AI-Summary

What this Trial Is About

Researchers are evaluating the effects of ALKS 2680 tablets on reducing daytime sleepiness and disease symptoms in adults with Narcolepsy Type 2 (NT2). This Phase 3, randomized, double-blind, placebo-controlled study aims to measure changes in sleep latency and assess safety and efficacy compared to placebo. The study is sponsored by Alkermes, Inc. and focuses on adults aged 18 to 70 years with a confirmed diagnosis of NT2. Participants will be randomly assigned to receive one of three different daily doses of ALKS 2680 tablets or placebo tablets, taken orally for 12 weeks. The study includes a placebo comparator group to evaluate the effect of the investigational drug against no active medication. The intervention period lasts 12 weeks, during which participants take the assigned tablets daily. During the study, participants will undergo various assessments including the Maintenance of Wakefulness Test to measure sleep latency, the Epworth Sleepiness Scale, and other patient-reported and cognitive tests to evaluate fatigue, vigilance, and global impressions of disease severity. Safety will be monitored through reported adverse events up to 14 weeks. Participants' adherence to treatment and therapy for obstructive sleep apnea will be monitored, and the total duration of participation is approximately 12 weeks of treatment plus follow-up.

CONDITIONS

Brief Title

A Study to Evaluate the Efficacy and Safety of ALKS 2680 in Adults With Narcolepsy Type 2

Who Can Participate

Age: 18Years - 70Years
All Genders

Eligibility Criteria

Eligible

You may qualify if you...

  • Willing and able to understand and follow study requirements, including lifestyle and contraception guidance
  • Adherence to actigraphy and diary requirements
  • If treated for obstructive sleep apnea (OSA), adherence to primary OSA therapy for at least 30 days before and during the study
  • Diagnosis of Narcolepsy Type 2 according to ICSD-3-TR guidelines, confirmed by PSG/MSLT
Not Eligible

You will not qualify if you...

  • Presence of another sleep disorder or condition affecting the sleep-wake cycle
  • History or presence of other significant illness, disease, abnormality, or surgery that might affect safety or study completion
  • Currently enrolled in another interventional trial or received investigational drugs or devices within 30 days before study start
  • Previous participation in Study ALKS 2680-202
  • Currently pregnant, breastfeeding, or planning pregnancy during the study

AI-Screening

AI-Powered Screening

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Your Study Journey

Screening

Duration - 2 to 4 weeks

Participants are screened for eligibility to participate in the trial.

Treatment

Duration - 12 weeks

Participants receive ALKS 2680 or placebo tablets daily, orally, for 12 weeks.

Trial Site Locations

Total: 8 locations

1

Alkermes Investigational Site

Brandon, Florida, United States, 33511

Actively Recruiting

2

Alkermes Investigational Site

Macon, Georgia, United States, 31210

Actively Recruiting

3

Alkermes Investigational Site

Lansing, Michigan, United States, 48911

Not Yet Recruiting

4

Alkermes Investigational Site

Cincinnati, Ohio, United States, 45245

Actively Recruiting

5

Alkermes Investigational Site

Wyomissing, Pennsylvania, United States, 19610

Actively Recruiting

6

Alkermes Investigational Site

Columbia, South Carolina, United States, 29201

Actively Recruiting

7

Alkermes Investigational Site

Austin, Texas, United States, 78731

Actively Recruiting

8

Alkermes Investigational Site

Sugar Land, Texas, United States, 77478

Actively Recruiting

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Research Team

D

Director Clinical Trial Manager

D

Director Clinical Trial Manager

How is the study designed?

Study Type

INTERVENTIONAL

Masking

TRIPLE

Allocation

RANDOMIZED

Model

PARALLEL

Primary Purpose

TREATMENT

Number of Arms

4

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