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TerminatedNCT02033941Updated Oct 15, 2024

Phase 2 Study to Examine Grape Seed Extract as an Anti-Oligomerization Agent in Alzheimer's Disease (AD)

A Phase 2 interventional study of Meganatural-Az Grapeseed Extract and Placebo in Alzheimer's Disease, sponsored by Hillel Grossman. Terminated at 1 site in United States. Per ClinicalTrials.gov, last updated 2024-10-15.

Sponsored by Hillel Grossman · Phase 2, Interventional, and Treatment

Why this study was terminated
difficulty with enrollment due to pandemic.

From the registry’s dates

  • Primary completion was Oct 2019, 7 years ago, and no results have been posted to the registry.
Phase
Phase 2
Study type
Interventional
Enrollment
10
Allocation
Randomized
Sex
All
01

Study summary

Alzheimer Disease (AD) is a progressive brain disease generally known as senile dementia. Our proposed study will establish safety and pharmacokinetics of Meganatural-AZ GSPE in AD subjects. As secondary measures, we will also provide the essential human data to guide the design of future studies to test the efficacy of GSPE in mitigating cognitive deterioration in AD patients.

Read the detailed description

This study aims to establish the safety and pharmacokinetics of Meganatural-Az® GSPE in subjects with Alzheimer's disease. As a secondary goal, clinical and biomarker indices of therapeutic efficacy will also be evaluated. The proposed study will provide the essential human data necessary to guide the design of future studies testing the efficacy of GSPE in mitigating cognitive deterioration in AD patients.

02

Conditions studied

  • Alzheimer's Disease

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Keywords

  • Alzheimer's Disease
  • Grapeseed Extract
  • Clinical Trial
  • Meganatural-AZ
  • anti-oligomerization
  • Phase 2
  • Dietary Supplement
  • Nutraceutical
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In context

Alzheimer Disease

3,678 studies on the registry are indexed under Alzheimer Disease; 869 are open to participants now.

This study's enrollment of 10 is below the median of 70 across 2,805 interventional studies indexed under Alzheimer Disease.

Browse Alzheimer Disease studies →

Lead sponsor

This is the only study on the registry with Hillel Grossman as lead sponsor.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
Child (0–17), Adult (18–64), Older adult (65+)
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • NINCDS/ADRDA criteria for probable AD
  • MMSE between 12-26
  • Treatment with a cholinesterase inhibitor or an NMDA (N-methyl-D-asparate) antagonist with stable dose for at least 12 weeks
  • Home monitoring available for supervision of medications
  • Caregiver available to accompany patient to all visits and willing to participate in study as informant
  • Fluent in English or Spanish
  • Medical stability for this study as confirmed by review of records, internist's physical exam, neurological exam, and laboratory tests
  • Stable doses of non-excluded medication
  • No evidence of hepatic insufficiency
  • Able to swallow oral medications
  • Ability to participate in the informed consent process

Exclusion criteria

Exclusion Criteria:

  • History of hypotension or unstable hypertension
  • Active hepatic or renal disease
  • Use of another investigational drug within the past two months
  • History of clinically significant stroke
  • History of seizure or head trauma with disturbance of consciousness within the past two years
  • Major mental illness including psychotic disorders, bipolar disorder, or major depressive episode that is not in remission for less than 12 months
  • Women of child-bearing age unless using effective birth control or at least one year post-menopausal or surgically menopausal
  • Any ferrous or metallic materials which are contraindicated for MRI

Medication Exclusions

  • Current use of drugs with significant anticholinergic or antihistaminic properties
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Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
10 participants (actual)

Study arms

  • Active comparator
    Meganatural-Az Grapeseed Extract

    Meganatural-Az® doses: 30mg / day for 2 weeks; 4 weeks of 600 mg/day, 4 weeks 1000mg / day

    Drug: Meganatural-Az Grapeseed Extract

  • Placebo comparator
    Placebo

    Subjects receive capsules identical in appearance to the active agent with the same incremental schedule

    Drug: Placebo

Interventions

  • DrugMeganatural-Az Grapeseed Extract

    Meganatural-Az® doses: 30mg / day for 2 weeks; 4 weeks of 600 mg/day, 4 weeks 1000mg / day

    Also known as: Grapeseed Polyphenolic Extract, Grapeseed Phenol Extract, GSPE

  • DrugPlacebo

    Subjects receive capsules identical in appearance to the active agent with the same incremental schedule

06

What researchers measure

Primary outcomes

  1. pharmacokinetic analysis

    the pharmacokinetics and effects of Meganatural-Az® on tau and abnormally phosphorylated tau CSF concentrations

    Time frame: up to 22 months

  2. primary safety evaluations

    adverse effects reporting

    Time frame: up to 22 months

Secondary outcomes

  1. AD Biomarkers

    β-amyloid (Aβ) in plasma and in cerebral spinal fluid (CSF) specimens

    Time frame: up to 22 months

  2. cognitive and functional assessments

    cognitive and functional assessments including the ADAS-cog, ADCS CGIC, MMSE, and ADL.

    Time frame: up to 22 months

07

Study locations

1 site
  • Mount Sinai Alzheimer's Disease Research Center
    New York, New York 10029, United States
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Oct 15, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT02033941
Lead sponsor
Hillel Grossman
Collaborators
National Center for Complementary and Integrative Health (NCCIH)
Responsible party
Hillel Grossman (Associate Professor, Icahn School of Medicine at Mount Sinai) — Sponsor-investigator
First posted
Jan 13, 2014
Start date
Jul 3, 2018
Primary completion
Oct 4, 2019
Completion
Oct 4, 2019
Last update
Oct 15, 2024

Study contacts

Hillel Grossman, MD
principal investigator · Mount Sinai School of Medcine
Samuel Gandy, MD/PhD
principal investigator · Icahn School of Medicine at Mount Sinai

Oversight

Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is terminated, as verified in Oct 2024. You cannot join it, but the record below documents what was studied.

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