Study to Characterize Acute and Chronic Directional Aspects of Deep Brain Stimulation
DIRECT-DBS
Directional Lead: Investigation of Rotational Current Steering, Ease of Use of Clinical Effects Map, and Therapeutic Outcomes of Deep Brain Stimulation
1 other identifier
interventional
12
3 countries
3
Brief Summary
The primary objective is to characterize the programming effects of Boston Scientific Vercise™ PC System using the DBS Directional Lead for bilateral STN DBS for the treatment of Parkinson's disease in acute and chronic settings.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for not_applicable parkinson-disease
Started Jul 2016
Typical duration for not_applicable parkinson-disease
3 active sites
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
First Submitted
Initial submission to the registry
June 24, 2016
CompletedFirst Posted
Study publicly available on registry
July 18, 2016
CompletedStudy Start
First participant enrolled
July 19, 2016
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 19, 2018
CompletedStudy Completion
Last participant's last visit for all outcomes
December 19, 2018
CompletedResults Posted
Study results publicly available
February 7, 2020
CompletedNovember 19, 2020
November 1, 2020
2.4 years
June 24, 2016
December 18, 2019
November 17, 2020
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Mean Change in Unified Parkinson's Disease Rating Scale (UPDRS) Scores - Motor Section (Part III) at End of Randomized Phase
Mean change in Unified Parkinson's Disease Rating Scale (UPDRS) scores - motor section (Part III) at end of randomized phase in meds ON condition Range of UPDRS III is 0 - 108 with greater scores indicating worse disease state
Up to 12 months post-implant
Study Arms (2)
Ring mode followed by Unrestricted mode
EXPERIMENTALomni-directional stimulation followed by unrestricted Mode stimulation
Unrestricted mode followed by ring mode
ACTIVE COMPARATORUnrestricted Mode stimulation followed by omni-directional stimulation
Interventions
Eligibility Criteria
You may qualify if:
- Diagnosis of bilateral idiopathic PD with the presence of rigidity and at least one (1) of the following: resting tremor or bradykinesia.
- UPDRS III score of \>25 in the meds OFF condition
- Medication must improve PD symptoms by ≥30%, as measured by UPDRS subset III score
You may not qualify if:
- Any significant psychiatric problems, including unrelated clinically significant depression as determined by the investigator
- Any current drug or alcohol abuse as determined by the investigator
- Any history of recurrent or unprovoked seizures
- Any significant medical condition that is likely to interfere with study procedures or likely to confound evaluation of study endpoints, including any terminal illness with survival \<12 months
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (3)
CHU Grenoble - Hopital Michallon
Grenoble, France
Universitaetsklinikum Wuerzburg
Würzburg, Germany
Academisch Medisch Centrum
Amsterdam, Netherlands
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Results Point of Contact
- Title
- Director of Clinical Sciences
- Organization
- Boston Scientific
Study Officials
- STUDY DIRECTOR
Roshini Jain
Boston Scientific Neuromodulation Corporation
Publication Agreements
- PI is Sponsor Employee
- No
- Restrictive Agreement
- Yes
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- DOUBLE
- Who Masked
- PARTICIPANT, OUTCOMES ASSESSOR
- Purpose
- OTHER
- Intervention Model
- CROSSOVER
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
June 24, 2016
First Posted
July 18, 2016
Study Start
July 19, 2016
Primary Completion
December 19, 2018
Study Completion
December 19, 2018
Last Updated
November 19, 2020
Results First Posted
February 7, 2020
Record last verified: 2020-11