The Effects of the Rivastigmine Patch on Parkinson's Disease With Memory and/or Thinking Problems
The Effects of the Rivastigmine Patch on Attention and Behavior in Parkinson's Disease With Dementia (PDD)
Study Overview
Status
Status
Conditions
Conditions
Intervention / Treatment
Intervention / Treatment
Detailed Description
Participation in this study requires four visits: a screening visit to ensure eligibility, an initial/baseline visit where the medication is distributed at a dosage lower than the optimal recommended dosage, a four week follow-up visit where the dosage of the medication is increased to the optimal amount, and a final twelve week follow up visit.
- In the screening visit the patient will undergo a neurological exam (including a review of their medical history and short physical exam), electrocardiogram ( a painless procedure that measures electrical activity of your heart), cognitive testing (such as memory and thinking tests), and a blood draw.
- At the Baseline/Initial visit the patient will receive a brief physical exam, additional cognitive testing, and an MRI scan. Afterwards, the study drug will be distributed.
- At the four week follow up visit the patient will be asked to do some abbreviated cognitive and neurological testing and the study drug will be re-distributed at the target dosage.
- At the final twelve week visit the patient will receive additional cognitive and neurological testing, and an MRI scan.
- Study compliance and adverse events will be reviewed every two weeks throughout the study, whether in person or over the phone.
Study Type
Study Type
Enrollment (Actual)
Enrollment
Phase
Phase
- Phase 4
Contacts and Locations
Study Locations
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-
California
-
San Francisco, California, United States, 94117
- UCalifornia SF
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-
Participation Criteria
Eligibility Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Must meet research criteria for Parkinson's Disease with Dementia (PDD)
- Males and females, ages between 55 and 100
- Able to undergo psychometric testing
- Mini-Mental State Examination ≥ 21 and Clinical Dementia Rating < 2
- Reliable informant with frequent contact with patient
Exclusion Criteria:
- Non-English speaking, as cognitive tests will be in English
- Evidence of other neurological or psychiatric disorders which preclude diagnosis of PDD (including, but not limited to, stroke, any psychotic disorder, severe bipolar or unipolar depression, seizure disorder, or head injury with loss of consciousness) within the past year
- Concurrent treatment with any acetylcholinesterase inhibitors (including rivastigmine in pill or patch form), antipsychotic agents (excluding quetiapine in dosages of 150 mg and lower, abilify and geodon as these medications are commonly used in treatment of Parkinson's Disease (PD) psychosis and should not affect results of study), mood stabilizers (valproate or lithium) or benzodiazepines (other than temazepam or zolpidem)
- Positive urine drug screen or suspected alcohol or substance abuse within last 1 year
- Current malignancy, or any clinically significant hematological, endocrine, cardiovascular, renal, hepatic, gastrointestinal or neurological disease. If the condition has been stable for at least the past year and is judged by the investigator not to interfere with the patient's participation in the study, the patient may be included
- Systolic blood pressure over 180 or less than 90 mm Hg. Diastolic blood pressure not greater than 105 or less than 50 mm Hg
- ECG is abnormal and judged to be clinically significant by the investigator
- Use of investigational drugs or participation in investigational drug studies within 30 days of screening
- Geriatric Depression Score score > 15/30
- Hachinski score > 4
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: N/A
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Number of Arms
Arms and Interventions
Participant Group / ArmParticipant Group / Arm |
Intervention / TreatmentIntervention / Treatment |
|---|---|
|
Experimental: Rivastigmine Patch 9.5 cm2
|
Subjects will be started on a 5cm2/24hr rivastigmine patch.
After 4 weeks, the dose will be increased to a recommended target dose of 9.5cm2/24hr patch for 8 additional weeks.
|
What is the study measuring?
Primary Outcome Measures
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
Resting State Functional Activity Change From Baseline to 12 Weeks
Time Frame: Baseline and 12 weeks
|
Fractional amplitude of low frequency fluctuations (fALFF) was used to measure brain activity.
This metric is derived from task-free functional magnetic resonance imaging (fMRI) and represents the power of regional spontaneous and intrinsic brain activity at the local, voxel-wise level while the subject is at rest.
More specifically, the amplitude of low-frequency fluctuations (ALFF) is the total power in the low-frequency range, and fALFF is calculated by dividing ALFF by the total power across all measurable frequencies.
Whereas ALFF values increase near blood vessels and cerebrospinal fluid (CSF), likely due to pulsations in those areas, fALFF is less susceptible to artifactual signals.
We measured change in these ratio scores post-treatment minus baseline and present in z-score units.
|
Baseline and 12 weeks
|
|
Pre-post Change in Continuous Performance Test of Attention (Median Reaction Time)
Time Frame: Baseline and 12 weeks
|
On the Continuous Performance Test (CPT), subjects press the spacebar quickly when they see a target image (a white star; 150 trials), and withhold response when they see a non-target image (5 randomly sampled white shapes; 150 trials).
The inter-stimulus interval is randomly sampled from 1.5s, 2.5s, or 4s.
Performance is measured by the median reaction time (milliseconds) on accurate target trials.
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Baseline and 12 weeks
|
Secondary Outcome Measures
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
Pre-post Change in Montreal Cognitive Assessment
Time Frame: Baseline and 12 weeks
|
The Montreal Cognitive Assessment (MoCA) was used as measure of global cognitive function.
Total scores range from 0 (worst) to 30 (best).
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Baseline and 12 weeks
|
Collaborators and Investigators
Sponsor
Sponsor
Collaborators
Collaborators
Investigators
Investigators
- Principal Investigator: Bruce Miller, M.D., UCalifornia SF
- Study Director: Joel Kramer, PsyD, UCalifornia SF
Publications and helpful links
Helpful Links
Study record dates
Study Major Dates
Study Start
Study Start
Primary Completion (Actual)
Primary Completion
Study Completion (Actual)
Study Completion
Study Registration Dates
First Submitted
First Submitted
First Submitted That Met QC Criteria
First Submitted That Met QC Criteria
First Posted (Estimate)
First Posted
Study Record Updates
Last Update Posted (Estimate)
Last Update Posted
Last Update Submitted That Met QC Criteria
Last Update Submitted That Met QC Criteria
Last Verified
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
- Mental Disorders
- Brain Diseases
- Central Nervous System Diseases
- Nervous System Diseases
- Neurocognitive Disorders
- Parkinsonian Disorders
- Basal Ganglia Diseases
- Movement Disorders
- Synucleinopathies
- Neurodegenerative Diseases
- Parkinson Disease
- Dementia
- Physiological Effects of Drugs
- Neurotransmitter Agents
- Molecular Mechanisms of Pharmacological Action
- Cholinergic Agents
- Enzyme Inhibitors
- Neuroprotective Agents
- Protective Agents
- Cholinesterase Inhibitors
- Rivastigmine
Other Study ID Numbers
Other Study ID Numbers
- CENA7 13D US45T
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