Efficacy and Safety of Actovegin in Post-stroke Cognitive Impairment (PSCI)

Phase 3

Completed

• Conditions: Post-Stroke Cognitive Impairment (PSCI)
• Interventions: Drug: Actovegin; Drug: Placebo

• Registration Number: NCT01582854
• Lead Sponsor: Takeda

Brief Summary

The aim of this trial is to provide evidence that Actovegin has a symptomatic effect in subjects with post stroke cognitive impairment (PSCI) during a six month treatment period compared to subjects administered placebo. Subjects received IV infusions whilst in hospital, and tablets once discharged. Subjects were followed up for a further six months after their treatment had been stopped to explore if the cognitive symptoms of the subjects treated with Actovegin showed sustained improvement. The trial also explored the possible prevention of dementia with Actovegin in patients who had suffered a recent ischaemic stroke, as well as the effect of Actovegin on other stroke outcomes. Safety information on Actovegin was collected.

Detailed Description

The drug tested in this study is called actovegin. Actovegin was tested to treat people who have post stroke cognitive impairment. This study looked at the improvement of cognitive symptoms in people who take actovegin compared to placebo.

The study enrolled 503 patients. Participants were randomly assigned (by chance, like flipping a coin) to one of the two treatment groups-which remained undisclosed to the patient and study doctor during the study:

* Actovegin-2000 mg intravenous solution; 2- 200 mg tablets 3 times a day

* Placebo intravenous solution; tablets (dummy inactive) - this is a solution or tablet that looks like the study drug but has no active ingredient

All participants received daily intravenous infusions in the hospital (up to a maximum of 20 infusions) followed by 2-200 mg tablets three times a day for the remainder of the 6-month treatment period.

This multi-centre trial was conducted in Belarus, Kazakhstan and Russia. The overall time to participate in this study was 12 months. Participants made multiple visits to the clinic plus a final visit after receiving their last dose of study drug for a follow-up assessment.

Study Timeline

• Study First Submitted: 2012-04-20
• Study First Submitted QC: 2012-04-20
• Study First Posted: 2012-04-23
• Study Start: 2012-06
• Primary Completion: 2014-11
• Study Completion: 2014-11
• Status Verified: 2016-01
• Results First Submitted: 2016-01-23
• Results First Submitted QC: 2016-01-23
• Last Update Submitted: 2016-01-23
• Results First Posted: 2016-02-22
• Last Update Posted: 2016-02-22

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 503

Inclusion Criteria

• Participant has suffered a recent supra-tentorial ischaemic stroke supported by computed tomography (CT) scan or magnetic resonance imaging (MRI) findings (in accordance with local practice).
• Participant is male or female, aged 60 years or above.
• Participant has a score on the National Institute of Health Stroke Scale (NIHSS) between 3 and 18 (inclusive).
• Participant is capable of completing the Montreal Cognitive Assessment (MoCA) and has a score of ≤ 25 points with adjustment for level of education (4-9 school years ≤ 23 points, 10-12 years ≤ 24 points, >12 years ≤ 25 points).

Main

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Exclusion Criteria

• Participant has a medical history of dementia.
• Participant has a known medical history of major depression or psychotic disorder.
• Participant is indicated for treatment with thrombolytics or carotid surgery as the current standard of care.

Randomisation Criteria:

• Inclusion Criteria.
• Ability to perform Alzheimer's Disease Assessment Scale + Cognitive Subscale Extended Version (ADAS-cog+).
• Exclusion Criteria.
• Clinically there is suspicion of progressive stroke.

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Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Actovegin	Actovegin	Actovegin 2000 mg solution, intravenous (IV) infusion for up to 20 days followed by 2 actovegin 200 mg, tablets, orally, 3 times a day for up to 6 months.
Placebo	Placebo	Actovegin placebo-matching solution, intravenous (IV) infusion for up to 20 days followed by 2 actovegin placebo-matching, tablets, orally, 3 times a day for up to 6 months.

Primary Outcome Measures

Name	Time	Method
Change From Baseline in Alzheimer's Disease Assessment Scale + Cognitive Subscale Extended Version (ADAS-cog+) at Month 6	Baseline and Month 6	The ADAS-cog measures cognitive performance by combining the ratings of 11 items. The cognitive domains mainly addressed by ADAS-cog are: memory (short term), language, ability to orientate (reflects memory), construction/planning of simple designs and performance. The extended version of the ADAS-cog (ADAS-cog+) includes 3 additional items: a 2-number cancellation task to test for attention, a delayed recall task to test for memory consolidation and a maze test for executive performance. Each item is scored and then the item scores are totaled. Total scores range from 0 (best) to 90 (worst). Higher scores indicate greater cognitive impairment. A negative change from Baseline indicates improvement.; Analysis of Covariance (ANCOVA) model was used for analyses that included treatment, pooled centre, and their interaction as factors and Baseline ADAS-cog+ score as a covariate.

Secondary Outcome Measures

Name	Time	Method
Percentage of ADAS-cog+ Responders at Time Points 3, 6 and 12 Months	Baseline and Months 3, 6 and 12	Responder was defined as an improvement of 4 or more from baseline on the ADAS-cog+ scale using observed data. The proportion of responders was compared between treatments using a chi-square test.
Barthel Index at Months 3 and 6	Months 3 and 6	The Barthel Index consists of 10 items that measure a person's daily functioning, specifically the activities of daily living and mobility. The items include: feeding, transfers (bed to chair and back), grooming, toilet use, bathing, mobility (walking on level surface), going up and down stairs, dressing, continence of bowels and bladder. Each performance item is rated, with a given number of points assigned to each level or ranking. Individual scores are summed for a total possible scores ranging from 0 (worst) to 100 (best) with higher scores indicating more independent daily living.
EuroQol EQ-5D (EQ-5D) General Health at Months 6 and 12	Months 6 and 12	The EuroQoL included a visual analogue scale where the subject marks how they feel at that moment on a scale from 0 (the worst health that can be imagined) to 100 (the best health that can be imagined).
Change From Baseline in Montreal Cognitive Assessment Scale (MoCA) at End of Infusion Period, Months 3, 6 and 12	Baseline, End of Infusion and Months 3, 6 and 12	The MoCA is a rapid screening test to assess mild cognitive impairment. It assesses different cognitive domains: attention and concentration, executive functions, memory, language, visuoconstructional skills, conceptual thinking, calculations, and orientation. Time to administer the MoCA is approximately 10 minutes. The total possible score is 0 to 30 points; a score of 26 or above is considered normal. A positive change from Baseline (BL) indicates improvement.; ANCOVA model was used for analyses that included treatment and pooled centres as factors, plus years of education and baseline MoCA score as covariates.
Beck Depression Inventory, Version II (BDI-II) at Months 3, 6 and 12	Months 3, 6 and 12	The BDI-II is a 21-question multiple-choice self-report inventory for measuring the severity of depression. is composed of items relating to symptoms of depression such as hopelessness and irritability, cognitions such as guilt or feelings of being punished, as well as physical symptoms such as fatigue, weight loss, and lack of interest in sex. Each answer is scored on a scale 0 (best) to 3 (worst). Total scores range from 0 to 63 with higher scores indicating more severe depression.; BDI II scale: * 0-13 minimal depression; * 14-19 mild depression; * 20-28 moderate depression; * 29-63 severe depression
Change From Baseline in ADAS-cog+ at Month 3 and Month 12	Baseline and Months 3 and 12	The ADAS-cog measures cognitive performance by combining the ratings of 11 items. The cognitive domains mainly addressed by ADAS-cog are: memory (short term), language, ability to orientate (reflects memory), construction/planning of simple designs and performance. The extended version of the ADAS-cog (ADAS-cog+) includes 3 additional items: a 2-number cancellation task to test for attention, a delayed recall task to test for memory consolidation and a maze test for executive performance. Each item is scored and then the item scores are totaled. Total scores range from 0 (best) to 90 (worst). Higher scores indicate greater cognitive impairment. A negative change from Baseline indicates improvement.; ANCOVA model was used for analyses that included treatment, pooled centre, and their interaction as factors and Baseline ADAS-cog+ score as a covariate.
Percentage of Participants With a Diagnosis of Dementia	Month 6 and 12	Diagnosis of dementia will be evaluated after 6 and 12 months classified according to International Statistical Classification of Diseases and related Health Problems 10th Revision (ICD-10) \[Classification of Mental and Behavioural Disorders, Diagnostic Criteria for Research\].
Change From Baseline in National Institutes of Health Stroke Scale (NIHSS) at End of Infusion Period, Months 3, 6 and 12	Baseline and End of Infusion and Months 3, 6 and 12	The NIHSS is a tool to objectively quantify the impairment caused by a stroke. The NIHSS is composed of 11 items, each of which scores a specific ability between a 0 (normal) to 4 (some level of impairment). The individual scores from each item are summed in order to calculate total possible NIHSS score from 0 (best) to 42 (worst). A negative change from Baseline indicates improvement. ANCOVA model was used for analyses that included treatment and pooled centre as factors and Baseline NIHSS score as a covariate.
EuroQol EQ-5D (EQ-5D) at Month 6	Month 6	EQ-5D is a standardized measure of health status consisting of 5 dimensions: mobility, self -care, usual activities, pain/discomfort and anxiety/depression. The participant rates their level of function in each area using a 5 point scale where 1=no problems (best) to 5=extreme problems (worst). The percentage of participants in each category is reported.
EuroQol EQ-5D (EQ-5D) at Month 12	Month 12	EQ-5D is a standardized measure of health status consisting of 5 dimensions: mobility, self -care, usual activities, pain/discomfort and anxiety/depression. The participant rates their level of function in each area using a 5 point scale where 1=no problems (best) to 5=extreme problems (worst). The percentage of participants in each category is reported.

Trial Locations

Locations (1)

Nycomed Investigational Site; 🇷🇺 Tomsk, Russian Federation