NCT04064294

Brief Summary

In this study, the investigators will examine the association of statin use and dyskinesia in a convenience sample Parkinson's disease patients in the Veterans Administration Health Care System.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
93

participants targeted

Target at P50-P75 for all trials

Timeline
Completed

Started Aug 2019

Longer than P75 for all trials

Geographic Reach
1 country

3 active sites

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

August 19, 2019

Completed
2 days until next milestone

First Posted

Study publicly available on registry

August 21, 2019

Completed
1 day until next milestone

Study Start

First participant enrolled

August 22, 2019

Completed
4.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 31, 2024

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

March 31, 2024

Completed
1 year until next milestone

Results Posted

Study results publicly available

April 11, 2025

Completed
Last Updated

April 11, 2025

Status Verified

April 1, 2025

Enrollment Period

4.6 years

First QC Date

August 19, 2019

Results QC Date

March 20, 2025

Last Update Submit

April 10, 2025

Conditions

Outcome Measures

Primary Outcomes (1)

  • Peak Unified Dyskinesia Rating Score (UDysRS)

    The Unified Dyskinesia Rating Scale (UDysRS) combines patient, caregiver, and treating physician perspectives on both historical (Parts 1 \& 2) and objective (Part 3 \& 4) assessments of dyskinesia and dystonia. The historical portion and the objective ratings are added together to form total score ranging from 0 to 104 with higher scores indicating more severe dyskinesia.

    11:00 am

Secondary Outcomes (3)

  • Peak Unified Dyskinesia Rating Scale - Objective Measures

    11:00 am

  • Presence/Absence of Levodopa-induced Dyskinesia (LID).

    Every half hour from 0900 to 1500

  • Clinical Dyskinesia Rating Scale (Peak)

    11:00 am

Study Arms (3)

Statin Before Levodopa

Historical use of a statin BEFORE beginning levodopa

Drug: Intravenous Infusion

Statin After Levodopa

Historical use of a statin AFTER beginning levodopa

Drug: Intravenous Infusion

No Statin

No historical use of a statin

Drug: Intravenous Infusion

Interventions

Intravenous levodopa given 1.0 to 1.5 mg/kg/hr from 0930 - 1130 on a single visit day.

Also known as: levodopa
No StatinStatin After LevodopaStatin Before Levodopa

Eligibility Criteria

Age50 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Parkinson's Disease

You may qualify if:

  • Parkinson's Disease
  • Age diagnosed with Parkinson's Disease greater than or equal to 50 years
  • Treatment with levodopa greater than or equal to 5 years

You may not qualify if:

  • Deep Brain stimulation
  • Unable to stand for 1 minute intervals, or sensory deficits in the feet
  • Significant cognitive impairment as measured by the Montreal Cognitive Assessment score of \< 18
  • Subjects with unstable medical or psychiatric conditions (including hallucinations).
  • History of unstable medical conditions (i.e. active cardiac disease, recent unwellness, surgery etc.)
  • Current use of drugs that may affect parkinsonism or dyskinesia:
  • dopamine receptor blocking medications
  • depakote
  • lithium
  • amiodarone
  • tetrabenazine
  • metoclopramide
  • dronabinol
  • and illicit drugs such as marijuana (THC)
  • cocaine
  • +2 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (3)

VA Portland Health Care System, Portland, OR

Portland, Oregon, 97207-2964, United States

Location

Oregon Health & Science University

Portland, Oregon, 97239not, United States

Location

VA Puget Sound Health Care System Seattle Division, Seattle, WA

Seattle, Washington, 98108, United States

Location

Related Publications (3)

  • Obeso JA, Rodriguez-Oroz MC, Rodriguez M, DeLong MR, Olanow CW. Pathophysiology of levodopa-induced dyskinesias in Parkinson's disease: problems with the current model. Ann Neurol. 2000 Apr;47(4 Suppl 1):S22-32; discussion S32-4.

    PMID: 10762129BACKGROUND
  • Tison F, Negre-Pages L, Meissner WG, Dupouy S, Li Q, Thiolat ML, Thiollier T, Galitzky M, Ory-Magne F, Milhet A, Marquine L, Spampinato U, Rascol O, Bezard E. Simvastatin decreases levodopa-induced dyskinesia in monkeys, but not in a randomized, placebo-controlled, multiple cross-over ("n-of-1") exploratory trial of simvastatin against levodopa-induced dyskinesia in Parkinson's disease patients. Parkinsonism Relat Disord. 2013 Apr;19(4):416-21. doi: 10.1016/j.parkreldis.2012.12.003. Epub 2012 Dec 31.

    PMID: 23283428BACKGROUND
  • Pavon N, Martin AB, Mendialdua A, Moratalla R. ERK phosphorylation and FosB expression are associated with L-DOPA-induced dyskinesia in hemiparkinsonian mice. Biol Psychiatry. 2006 Jan 1;59(1):64-74. doi: 10.1016/j.biopsych.2005.05.044. Epub 2005 Sep 1.

    PMID: 16139809BACKGROUND

Biospecimen

Retention: SAMPLES WITH DNA

plasma

MeSH Terms

Conditions

Parkinson DiseaseDyskinesia, Drug-Induced

Interventions

Infusions, IntravenousLevodopa

Condition Hierarchy (Ancestors)

Parkinsonian DisordersBasal Ganglia DiseasesBrain DiseasesCentral Nervous System DiseasesNervous System DiseasesMovement DisordersSynucleinopathiesNeurodegenerative DiseasesDyskinesiasNeurologic ManifestationsNeurotoxicity SyndromesSigns and SymptomsPathological Conditions, Signs and SymptomsDrug-Related Side Effects and Adverse ReactionsChemically-Induced DisordersPoisoning

Intervention Hierarchy (Ancestors)

Administration, IntravenousDrug Administration RoutesDrug TherapyTherapeuticsInfusions, ParenteralDihydroxyphenylalanineCatecholaminesAminesOrganic ChemicalsCatecholsPhenolsBenzene DerivativesHydrocarbons, AromaticHydrocarbons, CyclicHydrocarbonsPhenylalanineAmino Acids, AromaticAmino Acids, CyclicAmino AcidsAmino Acids, Peptides, and ProteinsTyrosine

Limitations and Caveats

Type II statins became more popular in use during the course of the study, which led to recruitment difficulties initially and a pivot to allowing most all statin drugs.

Results Point of Contact

Title
Dr. Kathryn Chung
Organization
Portland VA Health Care System

Study Officials

  • Kathryn Anne Chung, MD

    VA Portland Health Care System, Portland, OR

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
Yes

Study Design

Study Type
observational
Observational Model
CASE CONTROL
Time Perspective
RETROSPECTIVE
Sponsor Type
FED
Responsible Party
SPONSOR

Study Record Dates

First Submitted

August 19, 2019

First Posted

August 21, 2019

Study Start

August 22, 2019

Primary Completion

March 31, 2024

Study Completion

March 31, 2024

Last Updated

April 11, 2025

Results First Posted

April 11, 2025

Record last verified: 2025-04

Data Sharing

IPD Sharing
Will share

Individual participant data be available (including data dictionaries). Individual participant data that underlie the results reported the resultant article, after deidentification (text, tables, figures, and appendices). In addition to data, the study protocol and the informed consent form (ICF) will be provided. Data will be available beginning 6 months and ending 2 years following article publication. Data will be shared with Investigators whose proposed use of the data has been approved by an independent review committee ("learned intermediary") identified for this purpose. Data will be released to achieve aims in the approved proposal or for individual participant data meta-analysis. Proposals may be submitted up to 24 months following article publication. After 24 months the data will be available in the investigators' VA'S data repository but without investigator support other than deposited metadata.

Shared Documents
STUDY PROTOCOL, ICF
Time Frame
beginning 5 months and ending 2 years following article publication.
Access Criteria
Data will be shared with Investigators whose proposed use of the data has been approved by an independent review committee ("learned intermediary") identified for this purpose.
More information

Locations