NCT00291733

Brief Summary

Levodopa-induced dyskinesias have been associated with irregular oscillatory discharge characteristics of basal ganglia. From the other hand, LEV which shares a different electrophysiologic profile than other antiepileptics, inhibits hyper-synchronization of abnormal neuronal firing in experimental models of epilepsy. LEV also reduces levodopa-induced dyskinesias in MPTP-lesioned macaques and modulates "priming phenomenon" which associated with long-term changes in synaptic function that can lead to dyskinesias in PD. Study objectives :

  • To evaluate the effects of levetiracetam (LEV) in two doses (500 and 1000mg) vs placebo on disabling dyskinesias that develop as result of long-term treatment with levodopa, occurring at the time of maximal clinical improvement in patients with Parkinson's disease (PD).
  • To evaluate the safety of LEV in patients with PD and antiparkinsonian medication.

Trial Health

43
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
50

participants targeted

Target at P25-P50 for phase_2

Timeline
Completed

Started May 2006

Shorter than P25 for phase_2

Geographic Reach
1 country

1 active site

Status
unknown

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

February 14, 2006

Completed
1 day until next milestone

First Posted

Study publicly available on registry

February 15, 2006

Completed
3 months until next milestone

Study Start

First participant enrolled

May 1, 2006

Completed
1.4 years until next milestone

Study Completion

Last participant's last visit for all outcomes

October 1, 2007

Completed
Last Updated

November 15, 2007

Status Verified

November 1, 2007

First QC Date

February 14, 2006

Last Update Submit

November 14, 2007

Conditions

Keywords

LevetiracetamLevodopa-induced dyskinesiasParkinson's

Outcome Measures

Primary Outcomes (1)

  • Percent change of "on with levodopa-induced dyskinesias (LID)" time from patient diaries

    24 hours

Secondary Outcomes (1)

  • Percent change of "on without dyskinesias" and "off" time from patient diaries. Changes in severity and duration of LID according to the UPDRS , Schwab & England scale and also Goetz dyskinesia scale after a levodopa challenge dose.

    24 hours

Study Arms (4)

1

ACTIVE COMPARATOR

500mg levetiracetam for one week and 1000mg levetiracetam for one week

Drug: Levetiracetam

2

PLACEBO COMPARATOR

placebo

Drug: Placebo

3

ACTIVE COMPARATOR

After crossover arm 3 equals arm 1

Drug: Levetiracetam

4

PLACEBO COMPARATOR

After crossover arm 4 equals arm 2

Drug: Placebo

Interventions

500mg (2 tabl of 250) for one week and 1000mg (4 tabl of 250) for one week

13

Placebo tabl

24

Eligibility Criteria

Age30 Years - 80 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Diagnosis of PD will be according to the criteria of United Kingdom Parkinson's Disease Society Brain Bank.
  • Patients between ages 30 and 80
  • Hoehn and Yahr stage of PD over IIb
  • Levodopa-induced dyskinesias (LID) despite optimization of antiparkinsonian medication
  • LID severity 2 on item 32 and duration 2 on item 33 of the Unified Parkinson's Disease Rating Scale (UPDRS) part IV
  • Patient is willing to adhere to protocol requirements as evidence by written informed consent

You may not qualify if:

  • Patient has a history of any medical condition or clinically significant laboratory abnormalities that can subject them to unwarranted risk.
  • Female patient is pregnant or breastfeeding or has not been using or was not continuing to use an adequate contraceptive method for the last 30 days, or is not at least one year post-menopausal.
  • Patient with ablative surgeries or DBS implantation electrodes for diseases of the basal ganglia.
  • Patient has a low Mini-mental Examination MMSE score \<25 or has a history of bipolar psychosis or schizophrenia.
  • Patient is unwilling to sign an informed consent or to comply with protocol requirements.
  • Patient is taking or has taken in the past month amantadine.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Department of Neurology, 1st Hospital of Social Security Services

Athens, 151-27, Greece

Location

MeSH Terms

Conditions

Parkinson Disease

Interventions

Levetiracetam

Condition Hierarchy (Ancestors)

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

Intervention Hierarchy (Ancestors)

AcetamidesAmidesOrganic ChemicalsAcetatesAcids, AcyclicCarboxylic AcidsPyrrolidinonesPyrrolidinesHeterocyclic Compounds, 1-RingHeterocyclic Compounds

Study Officials

  • Pantelis Stathis, MD

    1st Hospital of Social Security Services

    STUDY CHAIR
  • Spiros Konitsiotis, MD

    Department of Neurology, University of Ioannina

    PRINCIPAL INVESTIGATOR
  • Vasilis Kyriakakis, MD

    Department of Neurology, General Hospital of Lamia

    PRINCIPAL INVESTIGATOR
  • Georgios Tagaris, MD

    Department of Neurology, PGNA "Georgios Genimatas"

    PRINCIPAL INVESTIGATOR
  • Kostas Papadopoulos, MD

    Department of Neurology, Hospital of Mental Diseases of Tripolis

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
CROSSOVER
Sponsor Type
OTHER

Study Record Dates

First Submitted

February 14, 2006

First Posted

February 15, 2006

Study Start

May 1, 2006

Study Completion

October 1, 2007

Last Updated

November 15, 2007

Record last verified: 2007-11

Locations