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Terminated Phase 3 Interventional Results available

Open-label Extension for Phase 3 Clinical Trials of Simufilam

ClinicalTrials.gov ID: NCT05575076

Public ClinicalTrials.gov record NCT05575076. 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 20, 2026, 4:49 PM EDT

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

Official title

An Open-label, Long-term Extension Study to Evaluate the Safety and Tolerability of Simufilam 100 mg Tablets in Participants With Mild to Moderate Alzheimer's Disease

Brief summary

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

The goal of this open-label extension study is to assess long-term safety and tolerability of simufilam 100 mg in subjects who have completed the RETHINK-ALZ or REFOCUS-ALZ Phase 3 clinical trials.

Study identification

NCT ID
NCT05575076
Recruitment status
Terminated
Study type
Interventional
Phase
Phase 3
Lead sponsor
Cassava Sciences, Inc.
Industry
Enrollment
1,081 participants

Conditions and interventions

Interventions

Drug

Eligibility (public fields only)

Age range
51 Years to 89 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 7, 2022 (Actual)
Primary completion
Jan 31, 2025 (Actual)
Completion
Jan 31, 2025 (Actual)
Last update posted
May 23, 2025

2022 – 2025

United States locations

U.S. sites
107
U.S. states
26
U.S. cities
97
Facility City State ZIP Site status
MDFirst Research Chandler Arizona 85286 —
CCT Research - Gilbert Neurology Partners Gilbert Arizona 85297 —
Xenoscience, Inc. Phoenix Arizona 85004 —
Banner Alzheimer's Institute Phoenix Arizona 85006 —
Banner Sun Health Research Institute Sun City Arizona 85351 —
Advanced Research Center, Inc. Anaheim California 92805 —
North County Neurology Associates Carlsbad California 92011 —
Axiom Research, LLC Colton California 92324 —
ATP Clinical Research, Inc. Costa Mesa California 92626 —
Neuro-Pain Medical Center Fresno California 93710 —
Neurology Center of North Orange County Fullerton California 92835 —
Sun Valley Research Center, Inc. Imperial California 92251 —
Senior Clinical Trials Laguna Hills California 92653 —
Shankle Clinic and Hoag Memorial Hospital Presbyterian Newport Beach California 92663 —
Artemis Institute for Clinical Research Riverside California 92503 —
Pacific Research Network, LLC San Diego California 92103 —
Syrentis Clinical Research Santa Ana California 92705 —
Mountain Neurological Research Center Basalt Colorado 81621 —
Colorado Neurological Research Center, PC Denver Colorado 80210 —
Ki Health Partners, LLC Stamford Connecticut 06905 —
JEM Research Institute Atlantis Florida 33462 —
Neurology Offices of South Florida Boca Raton Florida 33428 —
K2 Medical Research- Ocoee Clermont Florida 34711 —
Arrow Clinical Trials Daytona Beach Florida 32117 —
Brain Matters Research Delray Beach Florida 33445 —
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 —
Luminous Clinical Research Homestead Florida 33030 —
CNS Healthcare - Jacksonville Jacksonville Florida 32256 —
Charter Research Lady Lake Florida 32792 —
ClinCloud Maitland Florida 32751 —
Merritt Island Medical Research, LLC Merritt Island Florida 32952 —
Central Miami Medical Institute (GMI) Miami Florida 33125 —
Mind Institute at Miami Jewish Health Miami Florida 33137 —
New Horizon Research Center Miami Florida 33165 —
Brainstorm Research Miami Florida 33176 —
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 —
Health Synergy Clinical Research Okeechobee Florida 34972 —
Clinical Neuroscience Solutions, Inc. dba CNS Healthcare Orlando Florida 32801 —
Medical Research Port Orange Florida 32127 —
Intercoastal Medical Group - Sarasota Sarasota Florida 34239 —
Alzheimer's Research & Treatment Center Stuart Florida 34997 —
Clinical Research of Brandon, LLC (Tampa) Tampa Florida 33603 —
Stedman Clinical Trials Tampa Florida 33613 —
Alzheimer's Research & Treatment Center Wellington Florida 33414 —
Premier Research Institute at Palm Beach Neurology West Palm Beach Florida 33407 —
Charter Research Winter Park Florida 32792 —
Columbus Memory Center, PC Columbus Georgia 31909 —
Accel Research Sites - NeuroStudies Decatur Georgia 30030 —
Velocity Clinical Research - Boise Meridian Idaho 83642 —
Advocate Aurora Health - Advocate Memory Center Park Ridge Illinois 60068 —
Ascension Via Christi Research Wichita Kansas 67214 —
University of Kentucky Lexington Kentucky 40504 —
Neuro Medical Clinic of Central Louisiana, LLC Alexandria Louisiana 71301 —
Neurology Center of New England Foxborough Massachusetts 02035 —
ActivMed Practices & Research, LLC Methuen Massachusetts 01844 —
Boston Center for Memory Newton Massachusetts 02459 —
Boston Neuro Research Center North Dartmouth Massachusetts 02747 —
Headlands Eastern MA LLC Plymouth Massachusetts 02360 —
MedVadis Research Waltham Massachusetts 02451 —
Clinical Research Professionals Chesterfield Missouri 63005 —
CCT Research - Papillion Research Center Papillion Nebraska 68046 —
Patient First MD Middletown New Jersey 07748 —
Advanced Clinical Institute, Inc Neptune City New Jersey 07753 —
Global Medical Institutes, LLC Princeton New Jersey 08540 —
The Cognitive and Research Center of New Jersey (CRCNJ) Springfield New Jersey 07081 —
Advanced Memory Research Institute of NJ Toms River New Jersey 08755 —
Neurology Specialists of Monmouth County West Long Branch New Jersey 07764 —
Albuquerque Neuroscience, Inc Albuquerque New Mexico 87109 —
Albany Medical Center Albany New York 12208 —
Neurological Associates of Albany Albany New York 12208 —
Dent Neurologic Institute Amherst New York 14226 —
Integrative Clinical Trials, LLC Brooklyn New York 11229 —
SPRI Clinical Trials Brooklyn Brooklyn New York 11235 —
Velocity Clinical Research, Formerly Clarity Clinical Research East Syracuse New York 13057 —
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 —
Richmond Behavioral Associates Staten Island New York 10312 —
Richmond Behavioral Associates Staten Island New York 10314 —
Triad Clinical Trials, LLC Greensboro North Carolina 27410 —
Alzheimer's Memory Center Matthew North Carolina 28105 —
Accellacare Research of Winston-Salem Winston-Salem North Carolina 27103 —
Insight Clinical Trials LLC Beachwood Ohio 44122 —
NeuroScience Research Center, LLC Canton Ohio 44718 —
Dayton Center for Neurological Disorders Centerville Ohio 45459 —
the Ohio State University Columbus Ohio 43221 —
Neurology Diagnostics Dayton Ohio 45459 —
Neuro-Behavioral Clinical Research North Canton Ohio 44720 —
Summit Research Network, LLC Portland Oregon 97210 —
Center for Cognitive Health - Portland Portland Oregon 97225 —
Keystone Clinical Studies, LLC Plymouth Meeting Pennsylvania 19462 —
Rhode Island Mood & Memory Research Institute East Providence Rhode Island 02914 —
Palmetto Clinical Research Summerville South Carolina 29485 —
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 —
Re:Cognition Health Fairfax Virginia 22031 —
Northwest Clinical Research Center Bellevue Washington 98007 —
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 27 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT05575076, 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 23, 2025 · Synced Oct 20, 2026

Related: full search, browse by condition, browse by drug or therapy, browse by sponsor, browse by U.S. city.

Open the official record

The complete public registry record, listed eligibility criteria, and available contact information for NCT05575076 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →