NCT01922388

Brief Summary

Although deep brain stimulation of the subthalamic nucleus(STN DBS) has become the surgical treatment of choice for Parkinson's disease(PD), a consensus on the timing of surgery is lacking. This study is intended to demonstrate that early, compared with delayed, introduction of STN DBS is more beneficial for PD patients who have developed motor complications.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
200

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Aug 2013

Longer than P75 for all trials

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

August 1, 2013

Completed
7 days until next milestone

First Submitted

Initial submission to the registry

August 8, 2013

Completed
6 days until next milestone

First Posted

Study publicly available on registry

August 14, 2013

Completed
9.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2022

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2022

Completed
Last Updated

September 26, 2023

Status Verified

September 1, 2023

Enrollment Period

9.3 years

First QC Date

August 8, 2013

Last Update Submit

September 25, 2023

Conditions

Keywords

Parkinson diseasedeep brain stimulationsubthalamic nucleusmotor complicationquality of life

Outcome Measures

Primary Outcomes (1)

  • Changes in 39-item Parkinson's disease questionnaire (PDQ-39) scores

    Quality of life

    From baseline to 4 years

Secondary Outcomes (4)

  • Changes in Movement Disorder Society-sponsored revision of the Unified Parkinson's Disease Rating Scale (MDS-UPDRS) Part III scores

    From baseline to 4 years

  • Changes in time spent in the "on" state without troubling dyskinesia based on Parkinson's disease home diary

    From baseline to 4 years

  • Changes in MDS-UPDRS patient questionnaire (Part I B and Part II) scores

    From baseline to 4 years

  • Severe adverse effects

    From baseline to 4 years

Study Arms (2)

Early Motor Complication

This group is composed of PD patients with motor complications of 3 years or less. All subjects receive bilateral deep brain stimulation of the subthalamic nucleus and best medical treatment.

Device: Bilateral deep brain stimulation of the subthalamic nucleus

Late Motor Complication

This group is composed of PD patients with motor complications of more than 3 years. All subjects receive bilateral deep brain stimulation of the subthalamic nucleus and best medical treatment.

Device: Bilateral deep brain stimulation of the subthalamic nucleus

Interventions

Also known as: Activa PC or RC neurostimulator, Medtronic
Early Motor ComplicationLate Motor Complication

Eligibility Criteria

Age18 Years - 75 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

The study population are PD Patients with motor complications and an intention of receiving DBS.

You may qualify if:

  • Idiopathic Parkinson's Disease with good response to levodopa(i.e. more than 30% improvement in the MDS-UPDRS Part III score after an acute levodopa challenge)
  • Presence of fluctuations and/or dyskinesias
  • Age ranging from 18 to 75 years old
  • Normal brain MRI
  • Absence of dementia (Mini Mental State Examination ≥ 26)
  • Absence of severe psychiatric diseases
  • Written informed consent

You may not qualify if:

  • Presence of severe metabolic diseases
  • Severe cardiac/respiratory/renal/hepatic diseases
  • Secondary parkinsonism or multiple system atrophy
  • Illiteracy or insufficient language skills to complete the questionnaires
  • Poor compliance and unreasonable expectation
  • Women who are pregnant or breast feeding
  • Simultaneous participation in another clinical trial

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

the First Affiliated Hospital, Sun Yat-sen University

Guangzhou, Guangdong, 510080, China

Location

Related Publications (1)

  • Jiang L, Poon WS, Moro E, Xian W, Yang C, Zhu XL, Gu J, Cai X, Liu J, Mok V, Liu Y, Xu S, Guo Q, Chen W, Chen L. Early versus Late Application of Subthalamic deep brain Stimulation to Parkinson's disease patients with motor complications (ELASS): protocol of a multicentre, prospective and observational study. BMJ Open. 2017 Nov 16;7(11):e018610. doi: 10.1136/bmjopen-2017-018610.

MeSH Terms

Conditions

Parkinson Disease

Condition Hierarchy (Ancestors)

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

Study Officials

  • Ling Chen, MD, PhD

    First Affiliated Hospital, Sun Yat-Sen University

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
CASE ONLY
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
MD, PhD

Study Record Dates

First Submitted

August 8, 2013

First Posted

August 14, 2013

Study Start

August 1, 2013

Primary Completion

December 1, 2022

Study Completion

December 1, 2022

Last Updated

September 26, 2023

Record last verified: 2023-09

Locations