This clinical trial was performed to assess the clinical efficacy and safety of two 4 week treatment courses of daily intravenous administration of Cerebrolysin (20mL \[milliliter\] IV \[intravenous\] per day). The study was performed as prospective, randomised, double-blind, placebo-controlled, parallel group, multicentre study with 2 study groups. Group 1: 20 mL Cerebrolysin and 100 mg (milligram) acetylsalicylic acid Group 2: Placebo (0.9% NaCl \[sodium chloride\]) and 100 mg acetylsalicylic acid The study drug was given once daily by intravenous infusion (20ml in 250ml saline solution) for 4 weeks on five consecutive days per week. This treatment regimen was repeated after a two-month treatment-free interval. Acetylsalicylic acid was given orally, once daily throughout the study duration of 24 weeks. Altogether five clinical evaluation visits at Baseline (day 0) and at week 4, 12, 16, and 24 were necessary.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
QUADRUPLE
Enrollment
242
Chita State Medical Academy/Regional Psychiatric Hospital No. 2
Chita, Russia
Chita State Medical Academy/Veterans Hospital
Chita, Russia
Irkutsk State Institute of Postgraduate Education/Regional Clinical Hospital
Irkutsk, Russia
Kazan State Medical University/Municipal Clinical Hospital No. 6
Kazan', Russia
Kazan State Medical University/Republican Clinical Hospital
Kazan', Russia
Kursk Medical University/Kursk Regional Clinical Hospital
Kursk, Russia
I. M. Sechenov Moscow Medical Academy
Moscow, Russia
Mental Health Research Center of RAMS/Psychiatric Clinical Hospital No. 15
Moscow, Russia
Mental Health Research Center of RAMS
Moscow, Russia
Russian Medical Academy of Postgraduate Education/S. P. Botkin Municipal Clinical Hospital
Moscow, Russia
...and 11 more locations
Change From Baseline in ADAS-cog+ (Alzheimer's Disease Assesment Scale - Cognitive Subpart) at Week 24
The ADAS-COG+ is a psychometric instrument used to evaluate memory, attention, reasoning, language, orientation and praxis. The score ranges from 0 to 85 with 85 being the worst score. A negative change indicates cognitive improvement.
Time frame: baseline and week 24
CIBIC+ (Clinicians Interview-based Impression of Change) Score at Week 24
This rating scale is based on the health care provider's "general clinical impressions" with the informant input (i.e. family members). It evaluates global function and is scored from 1 (marked improvement) to 7 (marked worsening).
Time frame: week 24
Change From Baseline in ADAS-COG+ (Alzheimer's Disease Assessment Scale Cognitive Subpart)
The modified Alzheimer's Disease Assessment Scale - Cognitive (ADAS-COG+) is a psychometric instrument used by a neuropsychologist that evaluates memory, attention, reasoning, language, orientation and praxis.
Time frame: week 4, 12, 16
ADAS-COG+ Response
A patient with an improvement from baseline of ≥ 4 points in the ADAS-COG+ score at a particular visit is considered to have an ADAS-COG+ response at that visit.
Time frame: week 4, 12, 16, 24
Change From Baseline for Original ADAS-COG
The Original Alzheimer's Disease Assessment Scale - Cognitive (ADAS-COG) is comprised of items 1-11 of the modified ADAS-COG+.
Time frame: week 4, 12, 16, 24
CIBIC+ Score
The Clinician Interview-based Impression of Change (CIBIC+) score is assigned by an experienced physician familiar with the manifestations of dementia after interviewing the patient and the caregiver.
Time frame: week 4, 12, 16
CIBIC+ Response
A patient with a CIBIC+ score of 1 to 3 at a particular visit is considered to have a CIBIC+ response at that visit. Patients with a score of 0, indicating that the assessment was not performed, are considered to be non-responders.
Time frame: week 4, 12, 16, 24
CIBIS+ (Clinicians Interview-Based Impression of Severity)
The Clinician Interview-based Impression of Disease Severity (CIBIS+) score is assigned by an experienced physician, familiar with the manifestations of dementia, after interviewing the patient and the caregiver.
Time frame: week 24
Change From Baseline in MMSE (Mini-Mental State Examination) Score
The Mini-Mental State Examination (MMSE) is a frequently used screening instrument for clinical trials conducted in patients with Alzheimer's Disease. It evaluates orientation, registration, attention and calculation, recall and language.
Time frame: week 4, 12, 16, 24
Change From Baseline in ADCS-ADL (Alzheimer's Disease Cooperative Study-Activities of Daily Living Scale)
The ADCS-ADL is a measure of functional disability. The ADCS-ADL assessment of activities of daily living is based on an interview with the caregiver.
Time frame: week 4, 12, 16, 24
Change From Baseline in Trail-making Test
The Trail-making test is a frequently used instrument for the assessment of executive function.
Time frame: week 4, 12, 16, 24
Change From Baseline in Clock-drawing Test
The Clock-drawing test is a frequently used screening instrument for dementia drug studies. It evaluates executive function of demented patients.
Time frame: week 4, 12, 16, 24
Combined Response, i.e. Response in ADAS-COG+ and CIBIC+
Time frame: week 4, 12, 16, 24
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