NCT00646204

Brief Summary

To evaluate the effects of Memantine on non-motor symptoms in patients with Parkinson's disease. Parkinson's disease (PD) affects about one million people in the United States. It is a common neurological condition that is clinically defined by rigidity (muscle stiffness), bradykinesia (slowness of movement) and tremor. Parkinson's Disease , however, reveals numerous non-motor symptoms that have been underemphasized. Problematic symptoms include varying degrees of dementia, psychosis, diminished assertiveness and confidence, general fatigue, excessive daytime sleepiness, problems with blood pressure, sweating, and bladder, and a common yet difficult to define sense of "not feeling well".

Trial Health

87
On Track

Trial Health Score

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

Enrollment
40

participants targeted

Target at P25-P50 for phase_4

Timeline
Completed

Started Apr 2006

Typical duration for phase_4

Geographic Reach
1 country

1 active site

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

Study Start

First participant enrolled

April 1, 2006

Completed
1.7 years until next milestone

First Submitted

Initial submission to the registry

December 28, 2007

Completed
3 months until next milestone

First Posted

Study publicly available on registry

March 28, 2008

Completed
10 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 1, 2009

Completed
28 days until next milestone

Study Completion

Last participant's last visit for all outcomes

March 1, 2009

Completed
13.8 years until next milestone

Results Posted

Study results publicly available

December 13, 2022

Completed
Last Updated

December 13, 2022

Status Verified

November 1, 2022

Enrollment Period

2.8 years

First QC Date

December 28, 2007

Results QC Date

December 21, 2015

Last Update Submit

November 18, 2022

Conditions

Keywords

Parkinson's diseasenon-motor symptoms

Outcome Measures

Primary Outcomes (1)

  • Unified Parkinson Disease Rating Scale (UPDRS).

    Assess the overall change from baseline in ON state motor United Parkinson Disease Rating scale (UPDRS) scores as assessed in the scale. The minimum score is 0 and the maximum score 199. The maximum score of 199 means the worst possible disability from Parkinson's Disease.

    Baseline and 16 weeks

Secondary Outcomes (1)

  • Analyses Will be Computed for the Categorical Dependent Variable (DV): Global Tremor Assessment by Examiner

    Baseline and 16 weeks

Study Arms (2)

1-Active study drug

EXPERIMENTAL

memantine 10 mg bid

Drug: Memantine

2-placebo comparator

PLACEBO COMPARATOR

2 tabs bid

Drug: placebo

Interventions

10 mg bid

Also known as: Namenda
1-Active study drug

2 tabs bid

2-placebo comparator

Eligibility Criteria

Age18 Years - 80 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Subjects must be between the ages of 18 and 80 inclusive.
  • Each subject must meet standard criteria for PD.
  • All patients on dopaminergic therapy must report benefit. -No other abnormal neurological signs. -No direct or indirect trauma to the nervous system within 3 months preceding the onset of PD. -No convincing evidence of sudden onset or evidence of stepwise deterioration.
  • Subjects must be in generally good health as evidenced by previous medical history and clinical examination.
  • Subjects will be allowed to take any PD medication with the exception of amantadine. They will also be allowed to take medications approved for the use of Alzheimer's disease.
  • Subjects will be required to be on a stable dose of all medications for at least two weeks prior to entry into the study and may not alter these medications throughout the study.
  • If subjects are on an anti-depressant medications, a stable dose of these will be required for at least six weeks prior to entry into the study.
  • Subjects must be accessible by telephone.
  • If the subject is a female of childbearing age, she must have had: a hysterectomy, or tubal ligation, or otherwise be incapable or pregnancy, or have practiced one of the following methods of contraception for at least one month prior to study entry: hormonal contraceptives, spermicide and barrier, intrauterine device, partner sterility.
  • Female of childbearing age must have had a negative urine pregnancy test within one week of study entry. 11. Prior to participation in this study, each subject must sign an informed consent.

You may not qualify if:

  • Subjects who are not able to abstain from alcohol for 24 hours prior to each evaluation.
  • Subjects who can not maintain an identical dose of any medicine that may affect PD symptoms or signs during their entire study involvement.
  • Subjects who have exhibited meaningful psychiatric disease not thought to be related to PD. (Depression and psychosis typical for PD will not be excluded). 5. Subjects who have previously taken memantine.
  • \. Subjects currently taking Amantadine. 7. Subjects with greater than moderate dementia (MMSE\<24). 8. Subjects with co-morbid disease that in the investigators decision could interfere with treatment with memantine.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

PDCMDC 6550 Fannin, Suite 1801

Houston, Texas, 77030, United States

Location

Related Publications (1)

  • Ondo WG, Shinawi L, Davidson A, Lai D. Memantine for non-motor features of Parkinson's disease: a double-blind placebo controlled exploratory pilot trial. Parkinsonism Relat Disord. 2011 Mar;17(3):156-9. doi: 10.1016/j.parkreldis.2010.12.003. Epub 2010 Dec 30.

    PMID: 21193343BACKGROUND

MeSH Terms

Conditions

Parkinson Disease

Interventions

Memantine

Condition Hierarchy (Ancestors)

Parkinsonian DisordersBasal Ganglia DiseasesBrain DiseasesCentral Nervous System DiseasesNervous System DiseasesMovement DisordersSynucleinopathiesNeurodegenerative Diseases

Intervention Hierarchy (Ancestors)

AmantadineAdamantaneBridged-Ring CompoundsHydrocarbons, CyclicHydrocarbonsOrganic Chemicals

Results Point of Contact

Title
William G. Ondo, MD
Organization
Baylor College of Medicine/Houston Methodist

Study Officials

  • William G Ondo, MD

    Baylor College of Medicine

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
No
Restriction Type
LTE60
Restrictive Agreement
Yes

Study Design

Study Type
interventional
Phase
phase 4
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor

Study Record Dates

First Submitted

December 28, 2007

First Posted

March 28, 2008

Study Start

April 1, 2006

Primary Completion

February 1, 2009

Study Completion

March 1, 2009

Last Updated

December 13, 2022

Results First Posted

December 13, 2022

Record last verified: 2022-11

Data Sharing

IPD Sharing
Will not share

No individual data available

Locations