Early Versus Late Application of STN DBS to PD Patients With Motor Complications
ELASS
1 other identifier
observational
200
1 country
1
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
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for all trials
Started Aug 2013
Longer than P75 for all trials
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
August 1, 2013
CompletedFirst Submitted
Initial submission to the registry
August 8, 2013
CompletedFirst Posted
Study publicly available on registry
August 14, 2013
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 1, 2022
CompletedStudy Completion
Last participant's last visit for all outcomes
December 1, 2022
CompletedSeptember 26, 2023
September 1, 2023
9.3 years
August 8, 2013
September 25, 2023
Conditions
Keywords
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.
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.
Interventions
Eligibility Criteria
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
- Chen Linglead
- Prince of Wales Hospital, Shatin, Hong Kongcollaborator
- Shenzhen Second People's Hospitalcollaborator
Study Sites (1)
the First Affiliated Hospital, Sun Yat-sen University
Guangzhou, Guangdong, 510080, China
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.
PMID: 29150478DERIVED
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Ling Chen, MD, PhD
First Affiliated Hospital, Sun Yat-Sen University
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