ClinicalTrials.gg
Status unknownNCT03419039ACIDUpdated Sep 3, 2020

Anthocyanins as Dementia Prevention?

An interventional study of Anthocyanins and Placebo in Dementia, Inflammation and Mild Cognitive Impairment, sponsored by Helse Stavanger HF. Status unknown at 1 site in Norway. Open to participants aged 60 Years to 79 Years. Per ClinicalTrials.gov, last updated 2020-09-03.

Sponsored by Helse Stavanger HF · Not applicable, Interventional, and Prevention

The sponsor has not verified this record recently (last verified Apr 2020), so the status shown — last known as Active, not recruiting — may be out of date.
Phase
Not applicable
Study type
Interventional
Enrollment
212
Allocation
Randomized
Ages
60 Years to 79 Years
Sex
All
01

Study summary

The aim of this project is to study the safety and efficacy of anthocyanins in improving key dementia-related mechanisms and cognitive functioning in older people at risk for dementia. Secondary analyses will include a variety of biological measures, including biochemistry, imaging and cardiovascular measures.

Read the detailed description

Design, Method, Material. Design: This is a randomized, 6-month, placebo-controlled Phase 2 study of anthocyanins (Medox) in people with increased risk for dementia, to explore the effects of anthocyanins on cognitive performance and a range of biological markers including blood markers of inflammation and oxidative stress, antioxidants, lipid profile, urine, faeces, and cardiovascular functions.

Method: Patients will be randomized (by means of a computerized program) to identically appearing capsules with Medox or placebo, 1:1 (produced by MedPalett). Patients will undergo monthly cognitive testing online. Brain MRI, structural and functional, will be performed before study start and at week 24. FDG-PET will also be done at sudy-start and study-end in a sub-group. Blood samples for analyses will be drawn at study start, after 12 weeks and at study end (week 24). Lumbar puncture for cerebrospinal fluid (CSF) analyses, and faeces analyses and urine will be done at study-start and study end, and additionally at week 12 for feces and urine. Cardiovascular test inlude cardio ankle vascular index (CAVI), and photopletysmography (PPG) measurements will be done at study start (baseline) week 2, 6, 12 and at study end (week 24). In a sub-group Flow mediated dilatation of brachial artery (FMD) will be done at study start, week 12 and study end.

The cognitive assessment battery consists of the CogTrack, an online cognitive test battery with proven utility, reliability, sensitivity and validity and sensitivity to change. The battery consists of ten subtests, which, based on factor analysis, are combined into the following domains: attention, memory and cognitive speed. The 15 word lists of the verbal memory test have been translated into Norwegian. The primary outcome measure will be the Quality of Episodic Memory combination of 2 accuracy scores from each of immediate and delayed word recall, word and picture recognition (4 tasks in total), which has been shown to be sensitive to cognitive changes . The battery will be administered online monthly at home, or with assistance from a research associate at SESAM/local research site if Internet is not available at home. Collection and registration will be performed securely online.

Patients will be tested at the same time of day on all occasions, usually in the morning. Testing procedures will be standardized (i.e. temperature, room, research associate, coffee intake).

Protocol amendment 17.08.20 Study: A randomized, 24-week parallel-group placebo-controlled multicenter (Phase 2) study of anthocyanins in people at risk for dementia.

Background for amendment Due to the COVID-19 pandemic, which has led to disease and even death within the Wesnes Cognition Ltd and contracted developers supporting the CogTrack cognitive testing, the maintenance of the CogTrack platform suffered and went fully down in June 2020. Accordingly participants were unable to access the platform and unable to complete the cognitive testing as part of the ACID study. A lot of resources were directed towards correcting the challenges. We have now been able to set up a different but nearly identical system, eCogPro, as an alternative test system. This system is expected to be ready to be administered to the participants in late August or early September.

Because of this inclusion of new participants has stopped, after having randomized 206 participants. There are 27 ongoing participants who have scheduled cognitive testing from today and until early October. The company producing active and placebo capsules, MedPalett, has agreed to distribute additional capsules to the remaining participants, enabling them to continue treatment until the cognitive test platform is up and running. Staff at MedPalett are unblended to allocation, and based on the study ID list of the remaining participants, will be able to deliver the correct capsules to study participants.

Other assessments, including physical testing and biomarker collection, are now running as normal, after having been shut down during the midst of the pandemic in April and May.

There have not been any safety concerns in the study so far, and no additional safety procedures will be initiated.

Amendment summary:

Participants who are still in the study will continue treatment up to 4 weeks beyond the scheduled 24 weeks.

02

Conditions studied

  • Dementia
  • Inflammation
  • Mild Cognitive Impairment
  • Coronary Artery Disease

Keywords

  • Mild Cognitive Impairment
03

In context

Dementia

2,372 studies on the registry are indexed under Dementia; 574 are open to participants now.

This study's enrollment of 212 is above the median of 90 across 1,758 interventional studies indexed under Dementia.

Browse Dementia studies →

Lead sponsor

Helse Stavanger HF is the lead sponsor of 97 studies on the registry; 18 are open to participants now.

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

04

Who can participate

Ages eligible
60 Years to 79 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • On none, or stable medication for the past three months AND
  • Mild cognitive impairment (MCI) according to Winblad OR
  • having >2 of the following conditions known to be associated with increased risk of cognitive impairment and dementia:
  • stable cardiovascular disease defined as coronary artery disease (CAD) seen on angiogram
  • cerebrovascular disease according to MRI criteria (i.e. presence of: Fazekas score >2 points OR cerebral infarct (>1 lesion) OR lacunar infarct (>1 lesion) OR lobar microbleed (>1 lesion), as judged by a qualified neuroradiologist) OR as visualized on CT scan for those having to MRI.
  • hypercholesterolemia/significant cardiovascular risk, operationalized as use of statin at baseline
  • hypertension, operationalized as previous diagnosis of arterial hypertension and/or use of antihypertensive drugs
  • diabetes mellitus type 1
  • metabolic syndrome including overweight (>25) and diabetes mellitus type 2 (i.e. history of - and/or use of oral antidiabetic drugs and/or >6.5%)

Exclusion criteria

Exclusion Criteria:

  • Any dementia (defined as CDR >0.5)
  • Other known relevant brain disease such as Parkinson's disease, normal pressure hydrocephalus and other diseases which according to the study physician may cause cognitive decline
  • depression, i.e. major depression or GDS-15 score > 7
  • Unstable coronary heart disease
  • Heart failure in need of treatment
  • Systemic inflammatory diseases
  • Other serious disease with expected survival \<5 years
  • Somatic disease that might affect cognitive function adversely
  • Usage of heparin, warfarin and Non-Vitamin K Antagonist Oral Anticoagulants (NOAC)
  • Any use of Medox during the 12 months prior to inclusion
Terms in these criteria, in plain language(4)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Contraindication

A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.

BMI (body mass index)

Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.

What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.

HbA1c

A blood test of average blood sugar over the past two to three months, given as a percentage or in mmol/mol. 6.5% (48 mmol/mol) or more is the usual threshold for diabetes, normally confirmed by a second test.

Clinically significant

Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.

05

Study design

Phase
Not applicable
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Triple (Participant, Care provider, Investigator)
Enrollment
212 participants (actual)

Study arms

  • Experimental
    Anthocyanins

    Medox. 2 capsules x 2 daily, 320 mg daily.

    Dietary Supplement: Anthocyanins

  • Placebo comparator
    Placebo

    2 identically appearing placebo capsules daily

    Dietary Supplement: Placebo

Interventions

  • Dietary supplementAnthocyanins

    Medox tablet containing 80 mg anthocyanins.

    Also known as: Medox 80 mg

  • Dietary supplementPlacebo

    Identically appearing capsules.

06

What researchers measure

Primary outcomes

  1. Quality of episodic memory.

    A composite measure from the CogTrack battery

    Time frame: Baseline to 24 weeks

Secondary outcomes

  1. Secondary endpoints from CogTrack

    CogTrack evaluates attentional intensity index, sustained intensity index, cognitive reaction time, attentional fluctuation index, quality of working memory, quality of episodic memory and speed of memory retrieval.

    Time frame: Baseline to 24 weeks

  2. Blood outcome analysis

    Lipid profile, fatty acids, cytokines ( among others: IL-1, IL-2, IL-6, TNF-a), plasma antoxidant status and vitamins (lipid peroxidation markers, vitamins E, C, A, total plasma antioxidant capacity, glutathion)., carinthine, blood glucose, HbA1c, anthocyanins and metabolites, mapping of a-beta degradation products.

    Time frame: Baseline to 24 weeks

  3. Cardiovascular parameters

    Flow-mediated dilation (FMD), Cardiac-ankle vascular index (CAVI), photoplethysmogram (PPG).

    Time frame: Baseline to 24 weeks

  4. Fecal analysis

    Microbiota

    Time frame: Baseline to 24 weeks

  5. Urine analysis

    kyrinin

    Time frame: Baseline to 24 weeks

  6. CSF measurements

    anthocyanin metabolites

    Time frame: Baseline to 24 weeks

  7. MR-imaging/CT

    Diagnosing and follow-up of cerebrovascular disease

    Time frame: Baseline to 24 weeks

07

Study locations

1 site
  • Stavanger University Hospital
    Stavanger, Rogaland, Norway
08

References and documents

Publications

  • Aarsland D, Khalifa K, Bergland AK, Soennesyn H, Oppedal K, Holteng LBA, Oesterhus R, Nakling A, Jarholm JA, de Lucia C, Fladby T, Brooker H, Dalen I, Ballard C. A Randomised Placebo-Controlled Study of Purified Anthocyanins on Cognition in Individuals at Increased Risk for Dementia. Am J Geriatr Psychiatry. 2023 Feb;31(2):141-151. doi: 10.1016/j.jagp.2022.10.002. Epub 2022 Oct 18. PubMed 36372613 ↗
  • Khalifa K, Bergland AK, Soennesyn H, Oppedal K, Oesterhus R, Dalen I, Larsen AI, Fladby T, Brooker H, Wesnes KA, Ballard C, Aarsland D. Effects of Purified Anthocyanins in People at Risk for Dementia: Study Protocol for a Phase II Randomized Controlled Trial. Front Neurol. 2020 Sep 2;11:916. doi: 10.3389/fneur.2020.00916. eCollection 2020. PubMed 32982933 ↗

Individual participant data

Plan to share: No

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Sep 3, 2020, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03419039
Lead sponsor
Helse Stavanger HF
Responsible party
Sponsor
First posted
Feb 1, 2018
Start date
Jan 5, 2018
Primary completion
Feb 15, 2021 (estimated)
Completion
Feb 15, 2021 (estimated)
Last update
Sep 3, 2020

Study contacts

Dag Aarsland, MD., PhD.
principal investigator · Helse Stavanger HF

Oversight

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

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This study is status unknown, as verified in Apr 2020. You cannot join it, but the record below documents what was studied.

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Studies of the drug tested here: Anthocyanins

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