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Completed Phase 3 Interventional Results available

Simufilam 100 mg for Mild-to-Moderate Alzheimer's Disease

ClinicalTrials.gov ID: NCT04994483

Public ClinicalTrials.gov record NCT04994483. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Oct 19, 2026, 4:38 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

A Phase 3, Randomized, Double-blind, Placebo-controlled, Parallel-group, 52-week Study Evaluating the Safety and Efficacy of Simufilam 100 mg Tablets in Subjects With Mild-to-Moderate Alzheimer's Disease

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

A 52-week safety and efficacy study of simufilam (PTI-125) given twice daily to participants with mild-to-moderate Alzheimer's disease (AD) for 52 weeks. Approximately 750 participants will be randomized (1:1) to receive either placebo or 100 mg tablets of simufilam, twice daily, for 52 weeks. Clinic visits will occur 4 weeks after the baseline visit, and then every 12 weeks until the end of the study. The safety of simufilam, and its efficacy in enhancing cognition and slowing cognitive and functional decline will be evaluated.

Study identification

NCT ID
NCT04994483
Recruitment status
Completed
Study type
Interventional
Phase
Phase 3
Lead sponsor
Cassava Sciences, Inc.
Industry
Enrollment
804 participants

Conditions and interventions

Interventions

Drug

Eligibility (public fields only)

Age range
50 Years to 87 Years
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Nov 3, 2021 (Actual)
Primary completion
Oct 2, 2024 (Actual)
Completion
Oct 2, 2024 (Actual)
Last update posted
May 25, 2025

2021 – 2024

United States locations

U.S. sites
74
U.S. states
25
U.S. cities
68
Facility City State ZIP Site status
MDFirst Research Chandler Arizona 85286 —
CCT Research - Gilbert Neurology Partners Gilbert Arizona 85297 —
Xenoscience, Inc. Phoenix Arizona 85004 —
Advanced Research Center, Inc Anaheim California 92805 —
Axiom Research, LLC Colton California 92324 —
ATP Clinical Research, Inc. Costa Mesa California 92626 —
Sun Valley Research Center, Inc. Imperial California 92251 —
Senior Clinical Trials Laguna Hills California 92653 —
Artemis Institute for Clinical Research Riverside California 92503 —
Syrentis Clinical Research Santa Ana California 92705 —
Mountain Neurological Research Center Basalt Colorado 81621 —
Colorado Neurological Research Center, PC Denver Colorado 80210 —
CT Clinical Research Cromwell Connecticut 06416 —
Topaz Clinical Research Apopka Florida 32703 —
Neurology Offices of South Florida Boca Raton Florida 33428 —
Boynton Beach Medical Research Institute (GMI) Boynton Beach Florida 33437 —
K2 Medical Research - Clermont Clermont Florida 34711 —
Arrow Clinical Trials Daytona Beach Florida 32117 —
Neuropsychiatric Research Center of Southwest Florida Fort Myers Florida 33912 —
Velocity Clinical Research, Hallandale Beach Hallandale Florida 33009 —
Galiz Research Hialeah Florida 33016 —
Infinity Clinical Research - Sunrise Hollywood Florida 33024 —
CNS Healthcare - Jacksonville Jacksonville Florida 32256 —
Charter Research Lady Lake Florida 32162 —
Segal Trials - West Broward Outpatient Site Lauderhill Florida 33319 —
ClinCloud Maitland Florida 32751 —
Merritt Island Medical Research, LLC Merritt Island Florida 32952 —
Central Miami Medical Institute (GMI) Miami Florida 33125 —
New Horizon Research Center Miami Florida 33165 —
Luminous Clinical Research Miami Florida 33186 —
Quantam Clinical Trials Miami Beach Florida 33140 —
South Florida Research Phase I-IV INC Miami Springs Florida 33166 —
Suncoast Clinical Research, Inc. New Port Richey Florida 34652 —
Renstar Medical Research Ocala Florida 34470 —
Charter Research Orlando Florida 32803 —
Combined Research Orlando Phase I-IV Orlando Florida 32807 —
Progressive Medical Research Port Orange Florida 32127 —
Clinical Research of Brandon, LLC (Tampa) Tampa Florida 33603 —
Stedman Clinical Trials Tampa Florida 33613 —
Premier Research Institute at Palm Beach Neurology West Palm Beach Florida 33407 —
Velocity Clinical Research, Boise Meridian Idaho 83642 —
Northwestern Medicine Central DuPage Hospital Winfield Illinois 60190 —
Ascension Via Christi Research Wichita Kansas 67214 —
Neuro Medical Clinic of Central Louisiana, LLC Alexandria Louisiana 71301 —
Boston Neuro Research Center North Dartmouth Massachusetts 02747 —
Clinical Research Professionals Chesterfield Missouri 63005 —
CCT Research - Papillion Research Center Papillion Nebraska 68046 —
Advanced Clinical Institute, Inc West Long Branch New Jersey 07764 —
Albuquerque Neuroscience, Inc Albuquerque New Mexico 87109 —
Dent Neurologic Institute Amherst New York 14226 —
Parker Jewish Institute for Health Care & Rehabilitation New Hyde Park New York 11040-1433 —
Mid Hudson Medical Research New Windsor New York 12553 —
NY Neurology Associates New York New York 10003 —
University of Rochester Medical Center - Alzheimer's Disease Care, Research and Education Program Rochester New York 14620 —
Five Town Neuroscience Research Woodmere New York 11598 —
Triad Clinical Trials, LLC Greensboro North Carolina 27410 —
Alzheimer's Memory Center Matthew North Carolina 28105 —
Insight Clinical Trials LLC Beachwood Ohio 44122 —
NeuroScience Research Center, LLC Canton Ohio 44718 —
Dayton Center for Neurological Disorders Centerville Ohio 45459 —
Summit Research Network, LLC Portland Oregon 97210 —
Brian Abaluck, LLC Malvern Pennsylvania 19355 —
Global Medical Institutes/Scranton Medical Institute - Moosic Division Moosic Pennsylvania 18507 —
Rhode Island Mood & Memory Research Institute East Providence Rhode Island 02914 —
Palmetto Clinical Research Summerville South Carolina 29485 —
FutureSearch Trials of Neurology Austin Texas 78731 —
Senior Adults Specialty Research, Inc Austin Texas 78757 —
Texas Neurology, PA Dallas Texas 75206 —
Baylor Scott & White Research Institute Dallas Texas 75231 —
Mt. Olympus Medical Research, LLC Katy Texas 77450 —
Grayline Research Center Wichita Falls Texas 76309 —
Green Mountain Research Institute, Inc. Rutland Vermont 05701 —
Re:Cognition Health Fairfax Virginia 22031 —
Memory and Brain Wellness Center at Harborview Seattle Washington 98104 —

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

Non-U.S. locations

This page focuses on the U.S. directory. The official record also lists 14 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT04994483, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted May 25, 2025 · Synced Oct 19, 2026

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Open the official record

The complete public registry record, listed eligibility criteria, and available contact information for NCT04994483 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →