Buspirone, in Combination With Amantadine, for the Treatment of Levodopa-induced Dyskinesia

NCT ID: NCT02589340

Last Updated: 2021-03-05

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

TERMINATED

Clinical Phase

PHASE1

Total Enrollment

6 participants

Study Classification

INTERVENTIONAL

Study Start Date

2016-01-31

Study Completion Date

2021-02-23

Brief Summary

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The primary objective of this study is to evaluate the efficacy of buspirone in combination with amantadine in reducing levodopa-induced dyskinesia (LID) in patients with Parkinson's disease (PD).

Detailed Description

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Plan: We will perform a randomized, placebo-controlled, double-blind, two-period cross-over study to evaluate the safety, tolerability, and efficacy of a novel treatment combination for LID in PD.

Methods: Eligible subjects who consent to participate in this study will be randomized to one of two sequences of treatment interventions during the baseline visit. Each treatment sequence includes placebo and buspirone interventions. After randomization, each participant will titrate up on study drug for two weeks ending in 30 mg/day. At the end of each two week study drug period, the participant will then have a study visit at the VA Portland Health Care System that includes safety monitoring, adverse event monitoring, drug compliance, and several measurements of LID.

Conditions

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Parkinson's Disease Dyskinesias Movement Disorders

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

CROSSOVER

Primary Study Purpose

TREATMENT

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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Buspirone

Two week titration up to 10 mg tablet/3 times a day for 7 days

Group Type EXPERIMENTAL

Buspirone

Intervention Type DRUG

Placebo

Two week titration up to 3 tablets/3 times a day for 7 days

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type DRUG

Sugar Pill

Interventions

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Buspirone

Intervention Type DRUG

Placebo

Sugar Pill

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* Parkinson's disease diagnosis
* Currently taking a levodopa containing medication for Parkinson's disease
* Mild to Severe dyskinesia
* Currently taking between 200-500 mg of amantadine daily for treatment of levodopa-induced dyskinesia with insufficient suppression levodopa-induced dyskinesia.
* Stable medication regimen for at least 4 weeks prior to study.

Exclusion Criteria

* Currently receiving any other treatment for levodopa-induced dyskinesia, including but not exclusive to deep brain stimulation.
* Not able to follow verbal commands
* Not able to stand unsupported for at least 60 seconds
* Not able to answer a patient questionnaire about their symptoms of Parkinson's disease and dyskinesia.
* Have proprioceptive deficits.
* Have a history of hepatic impairment
* Currently have severe renal impairment
* Currently have any other medical or psychiatric diagnosis that would preclude their ability to safely participate in the study.
* Significant cognitive impairment
* Pregnancy
* Breast-Feeding
* Unable to swallow study drug (capsule)
Minimum Eligible Age

18 Years

Maximum Eligible Age

99 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Portland VA Medical Center

FED

Sponsor Role collaborator

Oregon Health and Science University

OTHER

Sponsor Role lead

Responsible Party

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Kathryn Anne Chung

Associate Professor - Neurology

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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VA Portland Health Care System

Portland, Oregon, United States

Site Status

Countries

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United States

References

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McFarthing K, Prakash N, Simuni T. CLINICAL TRIAL HIGHLIGHTS - DYSKINESIA. J Parkinsons Dis. 2019;9(3):449-465. doi: 10.3233/JPD-199002. No abstract available.

Reference Type DERIVED
PMID: 31356217 (View on PubMed)

Other Identifiers

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11875

Identifier Type: -

Identifier Source: org_study_id

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