Clinical trial No longer in our active list Phase 3 Interventional Ages 50 to 90

Masupirdine treatment for agitation in Alzheimer's dementia

Official title: A Phase 3, Double-Blind, Randomized, Placebo-Controlled, Parallel Group, Multicenter Study to Evaluate the Efficacy, Safety, Tolerability, and Pharmacokinetics of Masupirdine (SUVN-502) for the Treatment of Agitation in Participants With Dementia of the Alzheimer's Type

Run by Suven Life Sciences Limited · NCT05397639 · Data updated 2026-05-14

This study is no longer in our active list. It may have stopped recruiting or finished. The details below are as of 2026-05-14 and are kept for reference. Check ClinicalTrials.gov for its current status, or see similar studies below.

This study is testing if a new medication called masupirdine can help reduce agitation in people with Alzheimer's dementia.

Quick facts

PhasePhase 3
Study typeInterventional
Ages50 Years to 90 Years
SexAll
Enrollment375 (estimated)
SponsorSuven Life Sciences Limited
Industry-sponsored
Locations44 sites (Anaheim, California and 43 other locations)
Trial IDNCT05397639 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are individuals diagnosed with Alzheimer's type dementia who exhibit confirmed agitation.

Probably not a fit

Patients with agitation stemming from non-Alzheimer's dementia or other psychiatric disorders may 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

This multicenter, randomized, double-blind, placebo-controlled study aims to evaluate the efficacy, safety, tolerability, and pharmacokinetics of masupirdine in treating agitation in individuals diagnosed with Alzheimer's type dementia. Approximately 375 participants will be enrolled across 50 centers worldwide, receiving either masupirdine or a placebo for 12 weeks. Participants will be screened for eligibility based on specific criteria, including confirmed agitation and cognitive assessment scores.

Why it matters

Potential benefit: If successful, this treatment could significantly reduce agitation in patients with Alzheimer's dementia, improving their quality of life.

How similar studies have gone: Other studies have shown promise in treating agitation in dementia, but the specific use of masupirdine is a novel approach.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Has a diagnosis of dementia of the Alzheimer's type according to the National Institute on Aging-Alzheimer's Association (NIA-AA) criteria.
* Has confirmed agitation using the IPA Consensus Provisional Definition of Agitation in Cognitive Disorders.
* Has a score between 8 and 24 (both inclusive) on Mini-Mental State Examination (MMSE).

Exclusion Criteria:

* Participants with dementia predominantly of the non-Alzheimer's type (e.g., vascular dementia, parkinson's disease, lewy body disease, frontotemporal dementia)
* Has symptoms of agitation that are not secondary to Alzheimer's disease (eg, pain, other psychiatric disorder, or delirium due to a metabolic disorder, systemic infection, or substance-induced).
* Participant (or caregiver) is deemed otherwise ineligible for participation in this study in the investigator's judgement.

Where it's running

  • Advanced Research Center, Inc.
    Anaheim, California, United States
    Recruiting
  • ATP Clinical Research, Inc.
    Costa Mesa, California, United States
    Recruiting
  • Leading Edge Research LA, LLC
    Encino, California, United States
    Recruiting
  • Neuro Pain Medical Center
    Fresno, California, United States
    Recruiting
  • Neurology Center of North Orange County
    Fullerton, California, United States
    Recruiting
  • Mary S Easton Center for Alzheimer's Research and Care UCLA
    Los Angeles, California, United States
    Recruiting
Show 38 more locations
  • Ki Health Partners, LLC
    Stamford, Connecticut, United States
    Recruiting
  • Allied Biomedical Research Institute
    Miami, Florida, United States
    Recruiting
  • Central Miami Medical Institute
    Miami, Florida, United States
    Recruiting
  • CCM Clinical Research Group
    Miami, Florida, United States
    Recruiting
  • Miami Jewish Health
    Miami, Florida, United States
    Recruiting
  • Novel Clinical Research Center, LLC.
    Miami, Florida, United States
    Recruiting
  • Brainstorm Research
    Miami, Florida, United States
    Recruiting
  • Combined Research Orlando Phase I-IV
    Orlando, Florida, United States
    Recruiting
  • Quantum Laboratories Inc
    Pompano Beach, Florida, United States
    Recruiting
  • Re:Cognition Health
    Chicago, Illinois, United States
    Recruiting
  • Insight Hospital and Medical Center Chicago
    Chicago, Illinois, United States
    Recruiting
  • Ocean Medical Research
    Toms River, New Jersey, United States
    Recruiting
  • Dent Neurologic Institute
    Amherst, New York, United States
    Recruiting
  • Velocity Clinical Research, Syracuse
    East Syracuse, New York, United States
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  • Velocity Clinical Research, Cleveland
    Beachwood, Ohio, United States
    Recruiting
  • Ralph H. Johnson VA Health Care System
    Charleston, South Carolina, United States
    Recruiting
  • Midlands Neurology and Pain Associates
    Columbia, South Carolina, United States
    Recruiting
  • Gadolin Research
    Beaumont, Texas, United States
    Recruiting
  • Re:Cognition Health
    Fort Worth, Texas, United States
    Recruiting
  • Baylor College of Medicine
    Houston, Texas, United States
    Recruiting
  • Clinical Trial Network
    Houston, Texas, United States
    Recruiting
  • Clinical Hospital Center Rijeka
    Rijeka, Croatia
    Recruiting
  • Polyclinic Neuron
    Zagreb, Croatia
    Recruiting
  • University Hospital Center Zagreb
    Zagreb, Croatia
    Recruiting
  • Klinika za psihijatriju Vrapce
    Zagreb, Croatia
    Recruiting
  • Medycyna Milorzab sp. z o.o.
    Lodz, Lódzkie, Poland
    Recruiting
  • FutureMeds Warszawa Centrum
    Warsaw, Masovian Voivodeship, Poland
    Recruiting
  • MTZ Clinical Research powered by Pratia
    Warsaw, Masovian Voivodeship, Poland
    Recruiting
  • Centrum Leczenia Zaburzen Pamieci Affidea
    Warsaw, Masovian Voivodeship, Poland
    Recruiting
  • Centrum Medyczne Silmedic Sp z o o
    Katowice, Silesian Voivodeship, Poland
    Recruiting
  • EMC Silesia Sp. z o.o.
    Katowice, Silesian Voivodeship, Poland
    Recruiting
  • Neuro-Medic Janusz Zbrojkiewicz
    Katowice, Silesian Voivodeship, Poland
    Recruiting
  • ClinHouse Centrum Medyczne
    Zabrze, Poland
    Recruiting
  • Clinical Hospital Center Dragisa Misovic Dedinje
    Belgrade, Serbia
    Recruiting
  • Special Hospital for Psychiatric Diseases
    Kovin, Serbia
    Recruiting
  • University Clinical Center Kragujevac, Clinic for Psychiatry
    Kragujevac, Serbia
    Recruiting
  • University Clinical Center Nis, Clinic for neurology
    Niš, Serbia
    Recruiting
  • Clinical Centre of Vojvodina, Clinic of Neurology
    Novi Sad, Serbia
    Recruiting

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.
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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.