NCT04435509

Brief Summary

There is accumulating evidence suggesting that Greek Mountain Tea may have a positive impact on conditions involving cognitive deficits, such as Mild Cognitive Impairment (MCI) and AD. More specifically, greek mountain olympos tee is rich in essential oils, flavonoids, diterpenes and phenylpropanes, which are primarily responsible for its pharmacological properties. Its confirmed antioxidant properties are what make mountain tea promising against Alzheimer's disease and other neurodegenerative diseases. It has also been proven to possess cholinergic and cognitive enhancing capabilities. Greek Mountain Tea is deeper studied and it shows promising results in neuroprotection against AD through various suggested mechanisms, such as the enhancement of amyloid-beta clearance in the brain and the inhibition of neurofibrillary tangles formation. The aim of the study is to evaluate the beneficial effect of Greek Mountain Tea in patients diagnosed with mild cognitive impairment MCI. Study Type: Interventional Study Design: Allocation: Randomized Intervention Model: Parallel Assignment Masking: Double Blind (Subject, Investigator) Primary Purpose: Prevention

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
50

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Nov 2019

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

October 8, 2019

Completed
1 month until next milestone

Study Start

First participant enrolled

November 17, 2019

Completed
7 months until next milestone

First Posted

Study publicly available on registry

June 17, 2020

Completed
4 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 30, 2020

Completed
8 months until next milestone

Study Completion

Last participant's last visit for all outcomes

May 30, 2021

Completed
Last Updated

June 17, 2020

Status Verified

June 1, 2020

Enrollment Period

11 months

First QC Date

October 8, 2019

Last Update Submit

June 15, 2020

Conditions

Keywords

Mild Cognitive Impairment,InterventionGreek Mountain Tea

Outcome Measures

Primary Outcomes (15)

  • Neuropsychological Assessment- Measurements to Assess General Cognitive Function

    Changes in Mini-Mental State Examination (MMSE) score

    baseline, 12 and 24 months

  • FUCAS-Measurements to Assess Daily Functionality

    Changes in Functional cognitive assessment scale (FUCAS) score

    baseline, 12 and 24 months

  • Letter & Category Fluency Test- Measurement to Assess Verbal Fluency and Learning

    Changes in the Letter \& Category Fluency Test

    baseline, 12 and 24 months

  • CDR- Measurements to Assess General Cognitive Function

    Changes in Global Clinical Dementia Rating (CDR) score (sum of boxes)

    baseline, 12 and 24 months

  • MoCA- Measurements to Assess General Cognitive Function

    Changes in Montreal Cognitive Assessment (MoCA)

    baseline, 12 and 24 months

  • CANTAB- Measurements to Assess General Cognitive Function

    Changes in Cambridge Neuropsychological Test Automated Battery (CANTAB)

    baseline, 12 and 24 months

  • Clock Drawing test- Measurements to Assess General Cognitive Function

    Changes in the Clock Drawing test

    baseline, 12 and 24 months

  • Logical Memory test- Measurements to Assess General Cognitive Function

    Changes in the Logical Memory test

    baseline, 12 and 24 months

  • Digit Span Forward & Backward test- Measurements to Assess General Cognitive Function

    Changes in the Digit Span Forward \& Backward test

    baseline, 12 and 24 months

  • WAIS-R Digit Symbol- Measurements to Assess General Cognitive Function

    Changes in the WAIS-R Digit Symbol Substitution Test

    baseline, 12 and 24 months

  • TMT part A and B- Measurements to Assess General Cognitive Function

    Changes in the Trail Making Test

    baseline, 12 and 24 months

  • ADASCog-Measurements to Assess Daily Functionality

    Changes in Alzheimer's Disease Assessment Scale-Cognitive (ADASCog)

    baseline, 12 and 24 months

  • Functional Rating Scale for Dementia-Measurements to Assess Daily Functionality

    Changes in Functional Rating Scale for Dementia (FRSSD)

    baseline, 12 and 24 months

  • Auditory Verbal Learning Test- Measurement to Assess Verbal Fluency and Learning

    Changes in the Auditory Verbal Learning Test

    baseline, 12 and 24 months

  • Boston Naming Test- Measurement to Assess Verbal Fluency and Learning

    Changes in the Boston Naming Test

    baseline, 12 and 24 months

Secondary Outcomes (4)

  • NeuroImaging

    baseline, 12 and 24 months]

  • CSF - beta amyloid

    baseline, 12 and 24 months

  • CSF TAU-protein

    baseline, 12 and 24 months

  • Electroencephalography recording

    baseline, 12 and 24 months

Other Outcomes (2)

  • Weight in Kilograms

    baseline, 12 and 24 months

  • Height in Meters

    baseline, 12 and 24 months

Study Arms (2)

Greek Mountain Tea

EXPERIMENTAL

50 patients Greek Mountain Tea 50 grams one per 30 days. Dietary Supplement: Greek Mountain Tea dietary intake of the content of 12 grams Intervention:Greek Mountain Tea in a plastic bag.

Dietary Supplement: 1000+ Greek Mountain Tea

Mediterranean Diet

PLACEBO COMPARATOR

50 patients same dietary habits and a Mediterranean dietary protocol Intervention: Mediterranean diet.

Other: Mediterranean Diet

Interventions

1000+ Greek Mountain TeaDIETARY_SUPPLEMENT

Dietary Supplement: Greek Mountain Tea dietary intake of the content of 12 grams (4 grams 3 times per day ) 50 grams per month

Greek Mountain Tea

a Mediterranean dietary protocol

Mediterranean Diet

Eligibility Criteria

Age55 Years - 85 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Memory Complaints
  • Abnormal memory function documented by scoring 1 SD below the ageadjusted mean on the Logical Memory II subscale, (Delayed Paragraph Recall) from the Wechsler Memory Scale-R.
  • MMSE 24-30
  • CDR(sum of boxes) \>= 0,5
  • Diagnosis: Mild Cognitive Impairment (amnestic plus multi-domain)
  • Geriatric Depression Scale (GDS) \<6
  • Hachinski Modified Ischemic scale \<= 4
  • Stability of Permitted Medications for 4 weeks
  • Years of education: \>= 5
  • Proficient language fluency
  • Compliance

You may not qualify if:

  • Antidepressants with anti-cholinergic properties.
  • Regular use of narcotic analgesics (\>2 doses per week) within 4 weeks of screening.
  • Use of neuroleptics with anti-cholinergic properties (e.g., chlorpromazine, thioridazine) within 4 weeks of screening.
  • Chronic use of other medications with significant central nervous system anticholinergic activity within 4 weeks of screening (e.g., diphenhydramine).
  • Use of Anti-Parkinsonian medications (including Sinemet, amantadine, bromocriptine, pergolide, selegeline) within 4 weeks of screening.
  • Participation in any other investigational drug study within 4 weeks of screening (individuals may not participate in any drug study while participating in this protocol).

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Greek Alzheimer's Association and Related Disorders

Thessaloniki, Thessaloniki, 54248, Greece

Location

Related Publications (2)

  • Tsolaki M, Karathanasi E, Lazarou I, Dovas K, Verykouki E, Karacostas A, Georgiadis K, Tsolaki A, Adam K, Kompatsiaris I, Sinakos Z. Efficacy and Safety of Crocus sativus L. in Patients with Mild Cognitive Impairment: One Year Single-Blind Randomized, with Parallel Groups, Clinical Trial. J Alzheimers Dis. 2016 Jul 27;54(1):129-33. doi: 10.3233/JAD-160304.

  • Tzekaki EE, Tsolaki M, Pantazaki AA, Geromichalos G, Lazarou E, Kozori M, Sinakos Z. Administration of the extra virgin olive oil (EVOO) in mild cognitive impairment (MCI) patients as a therapy for preventing the progress to AD. Hell J Nucl Med. 2019 Sep-Dec;22 Suppl 2:181.

MeSH Terms

Conditions

Cognitive Dysfunction

Interventions

Diet, Mediterranean

Condition Hierarchy (Ancestors)

Cognition DisordersNeurocognitive DisordersMental Disorders

Intervention Hierarchy (Ancestors)

Diet, Plant-BasedDiet TherapyNutrition TherapyTherapeuticsDietNutritional Physiological PhenomenaDiet, Food, and NutritionPhysiological Phenomena

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Masking Details
Single (Participant)
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Single (Participant)
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
MD, PhD, Professor, President of Greek Alzheimer's Association and Related Disorders

Study Record Dates

First Submitted

October 8, 2019

First Posted

June 17, 2020

Study Start

November 17, 2019

Primary Completion

September 30, 2020

Study Completion

May 30, 2021

Last Updated

June 17, 2020

Record last verified: 2020-06

Data Sharing

IPD Sharing
Will not share

Locations