Cholinergic Neurotransmission in Mobility and Cognition in Parkinson Disease

Parkinson Disease Clinical Trial

Official title:

Cholinergic Neurotransmission - A Common Underlying Mechanism of Cognitive and Gait Impairment in Parkinson Disease

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT03840837
• Other study ID #: HP-00084074
• Secondary ID: 3P30AG028747-13S
• Status: Completed
• Phase: Phase 4
• Start date: May 2, 2019
• Est. completion date: April 1, 2020

Study information

• Verified date: December 2023
• Source: University of Maryland, Baltimore
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

This is a single-site non-randomized open label pilot study. The investigators will use accelerometer-based instrumented gait analysis and computerized cognitive testing to study the interaction of motor and cognitive dysfunction in Parkinson disease dementia (PDD), and the effect of rivastigmine on motor and cognitive performance. All study participants will be tested for motor and cognitive performance at baseline (arm 1). A subgroup of study participants will then be treated with rivastigmine for 12 weeks (arm 2), and the effect of this treatment on gait measures and cognitive measures will be analyzed at the follow-up visit 12 weeks after the baseline visit. Specifically, we will determine which components of motor and cognitive impairment are associated with each other, and which components of the two domains respond to rivastigmine-mediated stimulation of cholinergic neurotransmission.

Description:

This is a single-site non-randomized open label clinical trial in patients with Parkinson disease (PD) and mild to moderate cognitive deficits, designed to 1) identify associations between cognitive impairment and gait impairment, and 2) identify cognitive domains and gait measures that improve after 12 weeks of treatment with rivastigmine. Aim 1 will be addressed with a cross-sectional approach (arm 1, baseline only, all participants), and aim 2 will be addressed with a longitudinal interventional approach (arm 2, 12 week-treatment with rivastigmine, subgroup of participants). Patients with idiopathic Parkinson disease (PD) and mild to moderate cognitive deficits amounting to PD dementia (PDD) will be enrolled. At baseline (arm 1), all participants will perform the timed-up-and-go test (TUG), wearing a light-weight sensor device strapped to the lower back with a neoprene belt. Participants will also complete a computerized cognitive test battery (NeuroTrax Mild Cognitive Impairment & Early Dementia Battery by MindStreams). A subgroup of participants (arm 2) will then be treated with transdermal rivastigmine for 12 weeks, with dose increases every 4 weeks and titration up to 13.3 mg/24h, if tolerated. The same assessment (quantitative gait testing and NeuroTrax computerized cognitive test battery) will be repeated after 12 weeks, with the participant on a stable dose of transdermal rivastigmine. The investigators will analyze correlation of iTUG measures and cognitive measures at baseline (cross-sectional analysis). The investigators will also analyze change in iTUG measures and cognitive measures between baseline and follow-up for the subgroup of participants in arm 2 (in other words, before and after rivastigmine treatment; longitudinal analysis).

Recruitment information / eligibility

• Status: Completed
• Enrollment: 31
• Est. completion date: April 1, 2020
• Est. primary completion date: April 1, 2020
• Accepts healthy volunteers: No
• Gender: All
• Age group: 18 Years and older

Eligibility

Inclusion Criteria:

• Age = 18 years.
• Diagnosis of idiopathic Parkinson disease.
• Mild to moderate cognitive impairment, as determined by a MoCA score of = 25 and = 10.
• Patient passes the Evaluation to Sign Consent (ESC) or a legally authorized representative (LAR) is present at the time of enrollment and signs the informed consent form on behalf of the patient.
• Patient is enrolled (or willing to be enrolled) in the University of Maryland Parkinson Disease and Movement Disorders Center PD Research Database (HP 42195)

Exclusion Criteria:

• Advanced Parkinson disease (Hoehn & Yahr stage 5), with inability to walk unassisted.
• Other medical condition(s) that significantly interfere(s) with gait and balance (e.g., advanced arthritis).

Related Conditions & MeSH terms

• Dementia
• Parkinson Disease
• Parkinson Disease Dementia

Intervention

Drug:
• Rivastigmine transdermal patch
Titration of transdermal rivastigmine, as per arm description.

Locations

Country	Name	City	State
United States	University of Maryland School of Medicine, Dept. of Neurology	Baltimore	Maryland

Sponsors (2)

Lead Sponsor	Collaborator
University of Maryland, Baltimore	National Institute on Aging (NIA)

Country where clinical trial is conducted

United States, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Timed-Up-and-Go (TUG) duration [s]	Time participant needs to complete the TUG.	Data analysis will be completed within 6 months of completing study enrollment.
Primary	NeuroTrax Executive Function score	Result of the NeuroTrax computerized cognitive test of executive function.	Data analysis will be completed within 6 months of completing study enrollment.