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Suspended Phase 3 Interventional

A Study of Sodium Oligomannate (GV-971) in Participants With Mild to Moderate Alzheimer's Disease

ClinicalTrials.gov ID: NCT04520412

Public ClinicalTrials.gov record NCT04520412. 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 3, 2026, 2:41 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

A Phase 3, Multi-center, Randomized, Double-blind, Parallel-group, Placebo-controlled Clinical Trial to Evaluate the Efficacy and Safety of Sodium Oligomannate (GV-971) in Treatment of Mild to Moderate Alzheimer's Disease (GREEN MEMORY: GREen Valley 971 EvaluatioN Memory)

Brief summary

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

The purpose of this study is to evaluate the safety, tolerability and efficacy of GV-971 in mild to moderate Alzheimer's disease.

Study identification

NCT ID
NCT04520412
Recruitment status
Suspended
Study type
Interventional
Phase
Phase 3
Enrollment
2,046 participants

Conditions and interventions

Interventions

Drug

Eligibility (public fields only)

Age range
50 Years to 85 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
Oct 27, 2020 (Actual)
Primary completion
Dec 2025 (Estimated)
Completion
Oct 2026 (Estimated)
Last update posted
Nov 23, 2022

2020 – 2026

United States locations

U.S. sites
67
U.S. states
23
U.S. cities
60
Facility City State ZIP Site status
Cognitive Clinical Trials, LLC Gilbert Arizona 85297 —
Banner Alzheimer's Institute Phoenix Arizona 85006 —
St. Joseph's Hospital and Medical Center Phoenix Arizona 85013 —
Banner Sun Health Research Institute Sun City Arizona 85351 —
Banner Alzheimer's Institute Tucson Arizona 85718 —
Irvine Clinical Research Irvine California 92614 —
Sunwise Clinical Research Lafayette California 94549 —
Pharmacology Research Institute Los Alamitos California 90720 —
Pacific Research Network, Inc San Diego California 92103 —
Pacific Research Network San Diego California 92103 —
Syrentis Clinical Research Santa Ana California 92705 —
Schuster Med Research Institute Sherman Oaks California 91403 —
JEM Research LLC Atlantis Florida 33462 —
Brain Matters Research Delray Beach Florida 33445 —
Finlay Medical Research Corp Greenacres City Florida 33467 —
Velocity Clinical Research Hallandale Florida 33009 —
Jacksonville Center for Clinical Research Jacksonville Florida 32216 —
Charter Research, LLC Lady Lake Florida 32159 —
Innovative Clinical Research, Inc. Lauderhill Florida 33319 —
ClinCloud, LLC Maitland Florida 32751 —
Merritt Island Medical Research, LLC Merritt Island Florida 32952 —
Collier Neurologic Specialists Naples Florida 34105 —
Suncoast Clinical Research Inc. New Port Richey Florida 34652 —
Clinical Neuroscience Solutions, Inc. Orlando Florida 32801 —
Synexus Clinical Research Orlando Florida 32806 —
Neurology Associates of Ormond Beach Ormond Beach Florida 32174 —
Quantum Lab CNS Clinical Research Pompano Beach Florida 33064 —
Progressive Medical Research Port Orange Florida 32127 —
Intercoastal Medical Group Sarasota Florida 34239 —
Stedman Clinical Trials, LLC Tampa Florida 33613 —
Meridien Research Tampa Florida 33634 —
Synexus The Villages The Villages Florida 32162 —
NeuroStudies.net, LLC Decatur Georgia 30033 —
Great Lakes Clinical Trials Chicago Illinois 60640 —
Indiana University Indianapolis Indiana 46202 —
Alliance Multispecialty Research Wichita Kansas 67207 —
Activmed Practices&Research Lawrence Massachusetts 01843 —
Quest Research Institute Farmington Hills Michigan 48334 —
Barnes-Jewish Hospital IDS St Louis Missouri 63110 —
University of Nebraska Medical Center-Hematology/Oncology Section Omaha Nebraska 68106 —
Cognitive Clinical Trials, LLC Omaha Nebraska 68130 —
Altea Research Institute, Las Vegas Las Vegas Nevada 89102 —
Global Medical Institutes, LLC Princeton New Jersey 08540 —
The Cognitive Research Center of New Jersey Springfield New Jersey 07081 —
Advanced Memory Research Institute of NJ, PC Toms River New Jersey 08755 —
Integrative Clinical Trials LLC Brooklyn New York 11229 —
UBMD Neurology Buffalo New York 14203 —
Clarity Clinical Research East Syracuse New York 13057 —
Richmond Behavioral Associates Staten Island New York 10312 —
Behavioral Health Research Center Charlotte North Carolina 28211 —
AMC Research, LLC Charlotte North Carolina 28270 —
Guilford Neurologic Associate Greensboro North Carolina 27405 —
Insight Clinical Trials LLC Beachwood Ohio 44122 —
New Horizons Clinical Research Cincinnati Ohio 45040 —
Cleveland Clinic Foundation Cleveland Ohio 44195 —
Columbus Neuroscience, LLC Westerville Ohio 43082 —
Summit Research Network(Oregon)Inc. Portland Oregon 97210 —
Oregon Health&Science Universty Portland Oregon 97239 —
Oregon Neurology Associates Springfield Oregon 97477 —
Abington Neurological Associates, LTD Abington Pennsylvania 19001 —
SCarolina Institute Brain Health Charleston South Carolina 29401 —
Kerwin Research Center Dallas Texas 75231 —
Huston Methodist Hospital Houston Texas 77030 —
Clinical Trials of Texas; Inc San Antonio Texas 78229 —
Advanced Clinical Research West Jordan Utah 84088 —
Cognition Health Fairfax Virginia 22031 —
University Washington MedCentre Seattle Washington 98104-2499 —

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 104 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT04520412, 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 Nov 23, 2022 · Synced Oct 3, 2026

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Open the official record

The complete public registry record, listed eligibility criteria, and available contact information for NCT04520412 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →