- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT01216904
Nicotine Treatment of Impulsivity in Parkinson's Disease
Nicotine Treatment of Impulsivity in Parkinson's Disease: A Pilot Study
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
In recent years, a group of behavior changes collectively called Impulse Control Disorders (ICDs) have been identified in Parkinson's Disease (PD). ICDs have a broad range of possible symptoms such as compulsive gambling, shopping, hypersexual behavior, overeating; spending excessive amounts of time on hobbies, tasks, or other organized activities; walking or driving without a goal or purpose; hoarding or overuse of PD medications. It is estimated that as many as 30% of people with PD experience ICDs during the course of their condition. ICDs are believed to occur due to effects of dopamine enhancing medications in areas of the brain which regulate behavior (rather than their intended target areas that regulate movement).
A reduction or discontinuation of PD medications can be helpful in reducing ICDs. Unfortunately reduction in medication is often impractical or not possible because people with PD rely on these medications to improve their movement symptoms. There are currently no scientifically proven treatments for ICDs except for PD medication reductions.
Acetylcholine is a chemical in the brain which works to regulate the effects of dopamine. It has been known for many years that nicotine imitates many of the actions of acetylcholine. In preliminary studies, nicotine has been shown to reduce impulsive behavior in Attention Deficit Hyperactivity Disorder. By administering nicotine across the skin using a patch, we hope to better understand whether nicotine may act to improve impulse control disorders in PD without needing to reduce or stop PD medications. Several studies have shown that nicotine is tolerated well by people with PD, and does not appear to worsen motor/movement symptoms. The amount of nicotine in each patch used in this study is the same as patches that are used in people who are trying to quit smoking.
In this pilot within-subject crossover placebo-controlled study, subjects with a diagnosis of Parkinson's Disease who have recently experiencing an impulse control disorder will be enrolled. Subjects will randomized to one of two treatment groups. During the first portion of the study, the first treatment group will receive transdermal nicotine (nicotine by skin patch) and the second treatment group will receive an identical placebo patch which does not contain any nicotine. Over the course of the study, each of the two groups will switch to receive whichever treatment they were not initially receiving (for example-the first treatment group will later receive the placebo patch and the second treatment group will later receive the nicotine patch). Each treatment group will receive the nicotine patch or placebo patch for an equal number of weeks, but at different times during the study. Clinical and laboratory computer based measurements of impulsive and compulsive behaviors, memory testing, sleep quality/ sleepiness, and Parkinson's disease symptoms will be assessed at each visit.
Study Type
Enrollment (Anticipated)
Phase
- Phase 4
Contacts and Locations
Study Locations
-
-
Vermont
-
Burlington, Vermont, United States, 05401
- Recruiting
- Fletcher Allen Health Care/UVM
-
Contact:
- Emily Houston
- Phone Number: 802-656-8974
- Email: emily.houston@med.uvm.edu
-
Principal Investigator:
- James Boyd, MD
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- A clinical diagnosis of idiopathic Parkinson's Disease based on movement disorders specialist assessment using the National Institute of Neurological disorders and Stroke (NINDS) criteria 17;
- demonstrated response to L-¬DOPA and/or dopamine agonists;
- Hoehn and Yahr19 stage 1 - 3 motor disability in the "on" medication state;
- stable PD and non-PD medications for at least 1 month prior to baseline;
- positive QUIP screening and confirmatory interview for current or prior ICD symptoms 36;
- Montreal Cognitive Assessment score > 24;
- impaired impulsive and/or compulsive responding compared to norms on Stop Signal Task and/or Set-Shifting Task
- Global Deterioration Scale score24 of 1-2;
- Adequate visual and auditory acuity for neuropsychological testing;
- good general health with no additional diseases expected to interfere with the study;
- normal laboratory tests and ECG;
- female participants must be non-breastfeeding, post-menopausal or have been surgically sterilized or have a negative urine pregnancy test at screening and baseline visits with an acceptable form of contraception being used (see drug safety section for details on acceptable contraception);
- Subjects will be taking no centrally active or anti or pro-cholinergic drugs;
- non¬smokers, defined as no cigarettes in the last 6 months
Exclusion Criteria:
- severe motor fluctuations;
- prior DBS surgery;
- Any significant systemic illness or unstable medical condition including serious heart disease, severe asthma, severe or active ulcer disease, active thyroid disease, pyloric stenosis epilepsy, or allergies to nicotine;
- clinically significant laboratory test abnormalities on the battery of screening tests (hematology, chemistry, urinalysis, ECG);
- uncontrolled hypertension (systolic BP> 170 or diastolic BP> 100);
- Any current significant or unstable depression, anxiety, or psychosis
- history of obsessive-compulsive disorder
- use of any investigational drugs within 30 days or 5 half-¬lives, whichever is longer, prior to screening
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Crossover Assignment
- Masking: Triple
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Placebo Comparator: Placebo patch
|
placebo patch to be worn 16 hours per day
|
Active Comparator: Nicotine patch
|
7 mg patches to be worn for 16 hours per day
Other Names:
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Stop Signal task
Time Frame: 15 minutes
|
The Stop Signal Task is best described as a laboratory measure of inhibitory control.
The task itself requires quick execution of a thought or action, and the occasional inhibition of this behavior.
On the computerized task subjects are asked to respond as fast as they can to symbols (ex.
letters) presented on a computer screen.
|
15 minutes
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Set shifting task
Time Frame: 12-20 minutes
|
It has been considered a measure of executive function because of its reported sensitivity to frontal lobe dysfunction.
As such, the WCST allows the clinician to assess the following "frontal" lobe functions: strategic planning, organized searching, utilizing environmental feedback to shift cognitive sets, directing behavior toward achieving a goal, and modulating impulsive responding.
|
12-20 minutes
|
Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: James Boyd, MD, UVM/FAHC
Study record dates
Study Major Dates
Study Start
Primary Completion (Anticipated)
Study Completion (Anticipated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Estimate)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
- Brain Diseases
- Central Nervous System Diseases
- Nervous System Diseases
- Parkinsonian Disorders
- Basal Ganglia Diseases
- Movement Disorders
- Synucleinopathies
- Neurodegenerative Diseases
- Parkinson Disease
- Impulsive Behavior
- Physiological Effects of Drugs
- Neurotransmitter Agents
- Molecular Mechanisms of Pharmacological Action
- Autonomic Agents
- Peripheral Nervous System Agents
- Cholinergic Agents
- Ganglionic Stimulants
- Nicotinic Agonists
- Cholinergic Agonists
- Nicotine
Other Study ID Numbers
- PSG PDF MCRA 07012010
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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