NCT01883973

Brief Summary

Most leading academic centers including Baylor College of Medicine (BCM) perform deep brain stimulation surgery in the awake patient using microelectrode recording to guide final electrode placement. Microelectrode recording is a means of analyzing the electrical activity of the brain, and assessing whether we have found the target for the deep brain stimulator electrode. However, no evidence exists that microelectrode recording improves patient outcomes. The use of microelectrode recording does extend the duration of surgery and there is evidence to suggest that microelectrode recording may increase the risk of bleeding in the brain during surgery.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
7

participants targeted

Target at below P25 for all trials

Timeline
Completed

Started May 2011

Typical duration 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

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

May 1, 2011

Completed
2.1 years until next milestone

First Submitted

Initial submission to the registry

June 19, 2013

Completed
2 days until next milestone

First Posted

Study publicly available on registry

June 21, 2013

Completed
1.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2014

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2014

Completed
Last Updated

November 25, 2020

Status Verified

November 1, 2020

Enrollment Period

3.6 years

First QC Date

June 19, 2013

Last Update Submit

November 24, 2020

Conditions

Keywords

PDDBS

Outcome Measures

Primary Outcomes (1)

  • percentage improvement in the UPDRS part III motor score

    The primary outcome measure for this study is the percentage improvement in the Unified Parkinson Disease Rating Scale (UPDRS) part III motor score from baseline to 6 months in patients who receiving stimulation in the "OFF" medication state. Secondary outcome measures include rate of radiographically visible intracranial hemorrhage and changes in neurocognitive function and quality of life testing. The student's two sample t-test will be used to perform the statistically comparisons.

    from baseline to 6 months

Study Arms (2)

MER guidance

Will undergo DBS implantation in the awake state using a frame based stereotactic technique and intraoperative microelectrode recording to guide final lead placement.

MRI Guidance

Will undergo DBS implantation under general anesthesia using anatomical targeting in an operating room equipped with an intraoperative MRI to guide electrode placement

Eligibility Criteria

Age30 Years - 79 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Adult patients between the ages of 30 and 79 Diagnosis of idiopathic Parkinson's disease

You may qualify if:

  • Determined to be candidates for subthalamic nucleus (STN) or Globus pallidus (GPi) DBS by consensus recommendation of a multidisciplinary team as evidenced by:
  • Ability to provide informed consent as determined by preoperative neuropsychological assessment
  • Optimized medically by a neurologist who is an expert in the treatment of movement disorders.
  • Persistent motor symptoms which are not effectively controlled with optimal medical management. These symptoms may include levodopa-induced dyskinesias, tremor, or fluctuations in the effectiveness of levodopa throughout the day.

You may not qualify if:

  • Dementia
  • Previous intracranial surgery
  • Intracranial tumor
  • Lack of ability to provide informed consent as determined by preoperative neuropsychological assessment
  • Medical co-morbidities that would make the patient a poor surgical candidate

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Baylor College of Medicine

Houston, Texas, 77030, United States

Location

MeSH Terms

Conditions

Parkinson Disease

Condition Hierarchy (Ancestors)

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

Study Officials

  • Ashwin Viswanathan, MD

    Baylor College of Medicine

    PRINCIPAL INVESTIGATOR
  • Joohi Jimenez-Shahed, MD

    Baylor College of Medicine

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Assistant Professor

Study Record Dates

First Submitted

June 19, 2013

First Posted

June 21, 2013

Study Start

May 1, 2011

Primary Completion

December 1, 2014

Study Completion

December 1, 2014

Last Updated

November 25, 2020

Record last verified: 2020-11

Locations