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CompletedNCT00669344RIVIVEUpdated Feb 10, 2017

RIVastigmine In Vascular cognitivE Impairment

A Phase 4 interventional study of Exelon (rivastigmine) and Placebo in Cognitive Impairment, sponsored by Singapore General Hospital. Completed at 1 site in Singapore. Open to participants aged 55 Years to 85 Years. Per ClinicalTrials.gov, last updated 2017-02-10.

Sponsored by Singapore General Hospital · Phase 4, Interventional, and Treatment

Phase
Phase 4
Study type
Interventional
Enrollment
50
Allocation
Randomized
Ages
55 Years to 85 Years
Sex
All
01

Study summary

The study is a 24-week prospective, double blind, randomized, placebo-controlled pilot study of 9 mg / day Rivastigmine in patients with Vascular Cognitive Impairment Not Dementia (CIND) to evaluate efficacy, safety and tolerability in Asian patients. The hypothesis is that patients receiving Rivastigmine would improve in executive functioning domains.

Read the detailed description

Methodology: This is a 24-week, double blind, randomized, placebo-controlled pilot study of 9 mg / day Rivastigmine in patients with Cognitive Impairment Not Dementia due to cerebrovascular disease.

During the screening period, patients will be evaluated for CIND by means of neuropsychological tests establishing cognitive impairment following stroke or resulting from subcortical ischemic vascular disease (diagnosed by MRI) AND exclusion of dementia by DSM-IV criteria. At baseline, eligible patients will be evaluated for additional inclusion/exclusion criteria, vital signs, MMSE, Ten Point Clock Test, Colour Trails Test 1 \& 2, ADAS-Cog, Cognitive Battery, Frontal Assessment Battery (FAB), Alzheimer's Disease Cooperative Study Activities of Daily Living (ADCS-ADL) scale for mild cognitive impairment (MCI), Neuropsychiatric Inventory (NPI), Geriatric Depression Scale (GDS) and past/coexistent medical conditions. Laboratory examinations and ECGs will be evaluated at screening and week 24.

Patients will be evaluated every 4 weeks for 12 weeks at which time dose increases will be made and vital signs will be evaluated. At Week 12, cognitive and functional measures will be evaluated including the Ten Point Clock Test, Colour Trails Test 1 \& 2, ADAS-Cog, Cognitive Battery, FAB, ADL Scale for MCI, and NPI and GDS will be evaluated. At week 16 and week 20, telephone calls will be made to patients and caregivers to ascertain compliance. At Week 24, cognitive and functional measures will be evaluated including the Ten Point Clock Test, Colour Trails Test 1 \& 2, ADAS-Cog, Cognitive Battery, FAB, ADL Scale for MCI, and NPI and GDS will be evaluated.

Patients will be receiving a bottle of trial drug at appropriate titration dose every 4 weeks during titration phase starting from rivastigmine/placebo 1.5mg bd daily. During maintenance phase / at week 12, patients will be given 3 bottles of trial drug at the appropriate maintenance dose.

Adverse events and serious adverse events will be captured at every visit. In addition, patients who discontinue the study will be followed for safety evaluations through 24 weeks.

02

Conditions studied

  • Cognitive Impairment

Keywords

  • cognition
  • stroke
  • VCI
  • VCIND
  • Cognitive Impairment, No Dementia
03

In context

Cognitive Dysfunction

3,843 studies on the registry are indexed under Cognitive Dysfunction; 1,100 are open to participants now.

This study's enrollment of 50 is below the median of 65 across 2,808 interventional studies indexed under Cognitive Dysfunction.

Browse Cognitive Dysfunction studies →

Lead sponsor

Singapore General Hospital is the lead sponsor of 266 studies on the registry; 57 are open to participants now.

Of its 8 completed or terminated interventional studies of FDA-regulated products, 0 (0%) have results posted.

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

04

Who can participate

Ages eligible
55 Years to 85 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • male and female patients, age 55-85
  • outpatients, living with a caregiver
  • Rankin score \<=3
  • Diagnosis of Cognitive Impairment Not Dementia due to cerebrovascular disease
  • Post-stroke cognitive impairment
  • Cognitive impairment documented by neuropsychological evaluation within 6 months of index stroke

Exclusion criteria

Exclusion Criteria:

  • Advanced, severe, and unstable disease of any type that may interfere with the efficacy evaluations or put the subject at special risk
  • A current diagnosis of active uncontrolled seizure disorder
  • A current diagnosis of active peptic ulceration
  • A current diagnosis of severe and unstable cardiovascular disease
  • A current diagnosis of sick-sinus syndrome or conduction deficits (sino-atrial block, atrioventricular block)
  • A current diagnosis of unstable angina
  • MI within the last 6 months
  • DSM IV current diagnosis of dementia
  • DSM IV current diagnosis of major depression (patients may be included if currently being treated on an antidepressant and stabilized after 3 months)
  • A disability that may prevent the subject from completing all study requirements (e.g. blindness, deafness, severe language difficulty)
  • A known exaggerated pharmacological sensitivity or hypersensitivity to acetylcholinesterase inhibitors or to other cholinergic compounds
  • Ingestion of any of the following:
  • an investigational drug in the past four weeks
  • metrifonate in the last 3 months
  • a drug or treatment known to cause major organ system toxicity during the past four weeks
  • other cholinergic drugs (eg succinylcholine type muscle relaxants) during the past two weeks
  • anticholinergics prior to baseline
  • acetylcholinesterase inhibitors in the past 3 months
  • Women of childbearing potential
05

Study design

Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
50 participants (actual)

Study arms

  • Placebo comparator
    II

    Placebo

    Drug: Placebo

  • Experimental
    I

    Rivastigmine

    Drug: Exelon (rivastigmine)

Interventions

  • DrugExelon (rivastigmine)

    Capsules, twice daily orally. Dosage starts at 1.5mg bis diem to 4.5mg bis diem.

  • DrugPlacebo

    Capsule, twice daily orally. Dosage starts at 1.5mg bis diem to 4.5mg bis diem.

06

What researchers measure

Primary outcomes

  1. To evaluate the comparative change from baseline between treatment and placebo arms in the Ten Point Clock Drawing Test as well as Color Trails 1 and 2.

    Time frame: week 24

Secondary outcomes

  1. To evaluate the comparative change from baseline between treatment and placebo on cognitive function

    Time frame: week 24

  2. To evaluate the comparative change from baseline between treatment and placebo on activities of daily living

    Time frame: week 24

  3. To evaluate the comparative change from baseline between treatment and placebo on behavior and depression

    Time frame: week 24

  4. To evaluate the safety and tolerability of treatment in comparison to placebo

    Time frame: week 24

07

Study locations

1 site
  • Singapore General Hospital
    Singapore, 169608, Singapore
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Feb 10, 2017, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT00669344
Lead sponsor
Singapore General Hospital
Collaborators
Novartis, National Neuroscience Institute
Responsible party
Sponsor
First posted
Apr 30, 2008
Start date
Feb 2006
Primary completion
Apr 2007
Completion
Feb 2008
Last update
Feb 10, 2017

Study contacts

Eng King Tan, FAMS
principal investigator · National Neuroscience Institute, Singapore General Hospital Campus

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Feb 2017. You cannot join it, but the record below documents what was studied.

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