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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT04436614
Other study ID # 31b/17-05-17
Secondary ID
Status Completed
Phase N/A
First received
Last updated
Start date December 17, 2017
Est. completion date October 30, 2019

Study information

Verified date June 2020
Source Aristotle University Of Thessaloniki
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

There is accumulating evidence suggesting that Aloe vera and Crocus (saffron) may have a positive impact on conditions involving cognitive deficits, such as Mild Cognitive Impairment (MCI) and AD. More specifically, aloe vera gel contains powerful antioxidants, which belong to a large family of substances known as polyphenols. Aloe has also been proven to possess cholinergic and cognitive enhancing capabilities. Crocus 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. For this reason, it would be interesting to study the effects of combination of Aloe Vera and Crocus . The aim of the study is to evaluate the beneficial effect of Aloe Vera and Crocus (saffron) in comparison with Aloe (simple)on 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


Description:

OBJECTIVES OF THE TRIAL

The objectives of this study are:

To investigate the efficacy of Aloe Vera and Crocus as a disease course modifying treatment for MCI in a phase III double-blind placebo-controlled study.

To investigate the effects in objective measurements in patients with MCI.

STUDY DESIGN This is a Greek, randomised, double-blind, placebo-controlled study group of compared Aloe Vera and Crocus with placebo. Qualifying patients will be randomly assigned to receive 45 mL of Aloe Vera and Crocus or placebo (ALOE) or mediterranean dietary protocol on a daily basis for 24 months. Patients undergo assessments at baseline,12 and 24 months +/- 7 days after beginning of the treatment.

Duration The total study duration will be 36 months. Patients will receive study medication for 24 months.The recruitment will be about 6 months and the statistics and the preparation of the paper other 6 months.

Number of Subjects One hundred fifty (150) subjects total will be enrolled. ; Fifty (50) in the experimental group (Aloe Vera with Crocus); Fifty (50) in the Control Group 1(Aloe) and fifty (50) in control Group 2(same dietary habits-mediterranean dietary protocol).

Patient Eligibility Screening Form (ESF)

An eligibility form documenting the patient's fulfilment of the entry criteria will be completed by the assessor. The following information will be included in the ESF:

Patient identification: Initials (First initial of first name and First initial of surname), date of birth and Patient Identification Number.

Eligibility Screening; Checklist of inclusion and exclusion criteria Eligibility Statement; for patients found to be ineligible, the reason for ineligibility must be stated Written informed consent will be obtained from the subject . The informed consent form must be co-signed by the physician. The nature of the study and the potential risks associated with the trial will be explained to all subject candidates and their responsible informants.

Signature and date: the ESF may be completed by an assessor but it is required that the principal investigator/study clinician sign and date the ESF to verify eligibility of the patient for inclusion.


Recruitment information / eligibility

Status Completed
Enrollment 100
Est. completion date October 30, 2019
Est. primary completion date May 30, 2018
Accepts healthy volunteers No
Gender All
Age group 55 Years to 85 Years
Eligibility Inclusion Criteria:

- Memory Complaints

- Abnormal memory function documented by scoring 1 SD below the age-adjusted 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

Exclusion Criteria:

- Visual and auditory acuity inadequate for neuropsychological testing

- Enrollment in other trials or studies not compatible with MICOIL

- History of significant neurological or psychiatric illnesses or presence of other diseases precluding enrollment.

- Use of forbidden medications (listed below)

- Ferromagnetic implants and devices (including implants or devices held in place by sutures, granulation or ingrowth of tissue, fixation devices, or by other means) not eligible for MRI scanning. Brain malformation or other conditions that may complicate lumbar puncture

Excluded Medication:

- 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).

Study Design


Related Conditions & MeSH terms


Intervention

Dietary Supplement:
Dietary Supplement:Aloe Vera with Crocus (saffron)
Dietary Supplement:Aloe Vera with Crocus (saffron) with 1L of Aloe Vera with Crocus (saffron) 1 glass bottle per 15 days
Dietary Supplement:Aloe Vera (simple)
Dietary Supplement:Aloe Vera (simple)with 1L of Aloe Vera 1 glass bottle per 15 days
Dietary Supplement:Mediterranean Diet
Dietary Supplement:Mediterranean dietary protocol Intervention:mediterranean diet

Locations

Country Name City State
Greece Greek Alzheimer's Association and Related Disorders Thessaloníki Thessaloniki

Sponsors (1)

Lead Sponsor Collaborator
Aristotle University Of Thessaloniki

Country where clinical trial is conducted

Greece, 

References & 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, wit — View Citation

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. — View Citation

Outcome

Type Measure Description Time frame Safety issue
Other Weight in Kilograms Changes in weight baseline, 12 and 24 months
Other Height in Meters Changes in Height baseline, 12 and 24 months
Primary Neuropsychological Assessment- Measurements to Assess General Cognitive Function. Changes in Mini-Mental State Examination (MMSE) score baseline, 12 and 24 months
Primary FUCAS-Measurements to Assess Daily Functionality Changes in Functional cognitive assessment scale (FUCAS) score score scale:0-42,cut offs:<42 baseline, 12 and 24 months
Primary Letter & Category Fluency Test- Measurement to Assess Verbal Fluency and Learning Changes in the Letter & Category Fluency Test baseline, 12 and 24 months
Primary CDR- Measurements to Assess General Cognitive Function Changes in Global Clinical Dementia Rating (CDR) score (sum of boxes) baseline, 12 and 24 months
Primary MoCA- Measurements to Assess General Cognitive Function Changes in Montreal Cognitive Assessment (MoCA) baseline, 12 and 24 months
Primary Clock Drawing test- Measurements to Assess General Cognitive Function Changes in the Clock Drawing test baseline, 12 and 24 months
Primary Logical Memory test- Measurements to Assess General Cognitive Function Changes in the Logical Memory test baseline, 12 and 24 months
Primary Digit Span Forward & Backward test- Measurements to Assess General Cognitive Function Changes in the Digit Span Forward & Backward test baseline, 12 and 24 months
Primary WAIS-R Digit Symbol- Measurements to Assess General Cognitive Function Changes in the WAIS-R Digit Symbol Substitution Test baseline, 12 and 24 months
Primary TMT part A and B- Measurements to Assess General Cognitive Function Changes in the Trail Making Test baseline, 12 and 24 months
Primary ADASCog-Measurements to Assess Daily Functionality Changes in Alzheimer's Disease Assessment Scale-Cognitive (ADASCog) baseline, 12 and 24 months
Primary Functional Rating Scale for Dementia-Measurements to Assess Daily Functionality Changes in Functional Rating Scale for Dementia (FRSSD) baseline, 12 and 24 months
Primary Auditory Verbal Learning Test- Measurement to Assess Verbal Fluency and Learning Changes in the Auditory Verbal Learning Test baseline, 12 and 24 months
Secondary NeuroImaging Changes in brain Magnetic Resonance Imaging (MRI) 1.5 Tesla (brain atrophy) baseline, 12 and 24 months
Secondary CSF - beta amyloid Changes in mean values on high sensitivity beta-amyloid 1-42 protein baseline, 12 and 24 months
Secondary CSF TAU-protein Changes in mean values on TAU-protein in cerebrospinal fluid baseline, 12 and 24 months
Secondary Electroencephalography recording Changes in Event-Related Potential (ERP) (oddball paradigm, auditory ERPs) Electroencephalography recording Changes in Electroencephalography (EEG), resting state. The device records brain signals through 57 electrodes, 2 reference electrodes attached to the earlobes, and a ground electrode placed at a left anterior position baseline, 12 and 24 months
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