Clinical trial Recruiting at 46 sites Phase 3 Interventional Ages 18 to 65

Evaluating Solriamfetol for Excessive Sleepiness in Shift Workers

Official title: A Multi-center, Randomized, Double-blind, Placebo-controlled Trial to Assess the Efficacy and Safety of Solriamfetol in Excessive Sleepiness Associated With Shift Work Disorder

Run by Axsome Therapeutics, Inc. · NCT06568367 · Data updated 2026-11-12

This study is testing if a new medication called solriamfetol can help adults with excessive sleepiness from shift work feel more awake and alert.

Quick facts

PhasePhase 3
Study typeInterventional
Ages18 Years to 65 Years
SexAll
Enrollment520 (estimated)
SponsorAxsome Therapeutics, Inc.
Industry-sponsored
Locations49 sites (Auburn, Alabama and 48 other locations)
StatusRecruiting
StartedAugust 1, 2024
Main results expectedDecember 2026
Study endsDecember 2026
Registry record updatedJuly 24, 2026
Trial IDNCT06568367 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates for this study are adults aged 18 to 65 who meet the criteria for shift work disorder as defined by the International Classification of Sleep Disorders.

Probably not a fit

Patients who have previously been treated with solriamfetol or those deemed medically inappropriate for participation will not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

The SUSTAIN trial is a Phase 3, multi-center, randomized, double-blind, placebo-controlled trial designed to evaluate the efficacy and safety of solriamfetol in adults experiencing excessive sleepiness due to shift work disorder (SWD). Participants will be randomly assigned to receive either solriamfetol at doses of 150 mg or 300 mg, or a placebo, administered once per night shift over a 12-week period. The study aims to determine how well solriamfetol modulates neurotransmitters associated with wakefulness and alertness in this population.

Why it matters

Potential benefit: If successful, this treatment could significantly improve alertness and quality of life for individuals suffering from excessive sleepiness related to shift work disorder.

How similar studies have gone: Previous studies have shown promise in using solriamfetol for sleep-related disorders, suggesting a potential for success in this novel application.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Meets International Classification of Sleep Disorders, Third Edition (ICSD-3) criteria for Shift Work Disorder (SWD)
* Provides written informed consent to participate in the study before the conduct of any study procedures.
* Male or female, aged 18 to 65 inclusive.

Exclusion Criteria:

* Prior exposure to solriamfetol/Sunosi, through either a clinical study or prescription.
* Unable to comply with study procedures.
* Medically inappropriate for study participation in the opinion of the investigator.

Where it's running

  • Clinical Research Site
    Auburn, Alabama, United States
    Recruiting
  • Clinical Research Site
    Cullman, Alabama, United States
    Recruiting
  • Clinical Research Site
    Chandler, Arizona, United States
    Recruiting
  • Clinical Research Site
    Little Rock, Arkansas, United States
    Recruiting
  • Clinical Research Site
    Anaheim, California, United States
    Recruiting
  • Clinical Research Site
    Cerritos, California, United States
    Recruiting
Show 43 more locations
  • Clinical Research Site
    Huntington Beach, California, United States
    Recruiting
  • Clinical Research Site
    Long Beach, California, United States
    Recruiting
  • Clinical Research Site
    Santa Ana, California, United States
    Recruiting
  • Clinical Research Site
    Colorado Springs, Colorado, United States
    Recruiting
  • Clinical Research Site
    Brandon, Florida, United States
    Recruiting
  • Clinical Research Site
    Hialeah, Florida, United States
    Recruiting
  • Clinical Research Site
    Miami, Florida, United States
    Recruiting
  • Clinical Research Site
    Miami, Florida, United States
    Recruiting
  • Clinical Research Site
    Miami Lakes, Florida, United States
    Recruiting
  • Clinical Research Site
    Atlanta, Georgia, United States
    Recruiting
  • Clinical Research Site
    Stockbridge, Georgia, United States
    Recruiting
  • Clinical Research Site
    Chicago, Illinois, United States
    Recruiting
  • Clinical Research Site
    Kenner, Louisiana, United States
    Recruiting
  • Clinical Research Site
    Towson, Maryland, United States
    Recruiting
  • Clinical Research Site
    Boston, Massachusetts, United States
    Recruiting
  • Clinical Research Site
    Lansing, Michigan, United States
    Recruiting
  • Clinical Research Site
    Novi, Michigan, United States
    Recruiting
  • Clinical Research Site
    Southfield, Michigan, United States
    Recruiting
  • Clinical Research Site
    Chesterfield, Missouri, United States
    Recruiting
  • Clinical Research Site
    St Louis, Missouri, United States
    Recruiting
  • Clinical Research Site
    Henderson, Nevada, United States
    Recruiting
  • Clinical Research Site
    Middletown, New Jersey, United States
    Recruiting
  • Clinical Research Site
    Denver, North Carolina, United States
    Recruiting
  • Clinical Research Site
    Fayetteville, North Carolina, United States
    Recruiting
  • Clinical Research Site
    Huntersville, North Carolina, United States
    Recruiting
  • Clinical Research Site
    Cincinnati, Ohio, United States
    Recruiting
  • Clinical Research Site
    Cincinnati, Ohio, United States
    Recruiting
  • Clinical Research Site
    Wyomissing, Pennsylvania, United States
    Recruiting
  • Clinical Research Site
    Charleston, South Carolina, United States
    Recruiting
  • Clinical Research Site
    Columbia, South Carolina, United States
    Recruiting
  • Clinical Research Site
    Houston, Texas, United States
    Recruiting
  • Clinical Research Site
    Houston, Texas, United States
    Recruiting
  • Clinical Research Site
    San Antonio, Texas, United States
    Recruiting
  • Clinical Research Site
    Sugar Land, Texas, United States
    Recruiting
  • Clinical Research Site
    Spokane, Washington, United States
    Recruiting
  • Clinical Research Site
    Calgary, Alberta, Canada
    Recruiting
  • Clinical Research Site
    Markham, Ontario, Canada
    Recruiting
  • Clinical Research Site
    Ottawa, Ontario, Canada
    Recruiting
  • Clinical Research Site
    Toronto, Ontario, Canada
    Recruiting
  • Clinical Research Site
    Toronto, Ontario, Canada
    Recruiting
  • Clinical Research Site
    Tucson, Arizona, United States
    Withdrawn
  • Clinical Research Site
    Chula Vista, California, United States
    Terminated
  • Clinical Research Site
    Miami, Florida, United States
    Withdrawn

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.