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Parkinson's DiseaseNCT00885222

Antidepressant Effect of Deep Brain Stimulation in Parkinson's Disease Patients

A study testing DBS parameters setting in people with Parkinson's Disease and Major Depressive Disorder, run by Hadassah Medical Organization at 1 site in Israel.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The purpose of this study is: 1. To determine, in the context of a prospective clinical trial, whether stimulation parameters in PD patients treated with DBS, are associated with antidepressant effects. 2. Read more about this study

Who is it for?
Ages 40 to 75 years
What is being tested?
DBS parameters setting
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
20 participants
Where
1 siteIsrael
Study dates
May 2009to May 2010
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 40 to 75 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Clinically definite PD treated / candidates for treatment with DBS (patients with advanced idiopathic PD who are deemed appropriate for DBS surgery).
  • Patients will be included in the study irrespective of whether a diagnosis of major depression (mild to moderate but not severe MDD) is fulfilled at baseline. Patients without depression will be monitored in the study for evidence of treatment emergent depression. Patients with depression will be monitored for antidepressant effects of stimulation change.
  • Age 40-75 years
  • Male or female.
  • Competent and willing to give written informed consent.

Who cannot join

  • Significant suicidal risk [Hamilton Depression scale item 3 (suicide) >2].
  • Comorbidity with any Psychotic Disorder, Bipolar Disorder, Post Traumatic Stress Disorder (PTSD), Eating Disorder.
  • Lifetime history of substance or alcohol dependence or of abuse in the preceding 12 months
  • Significant cognitive decline, as measured by Addenbrooke's Cognitive Examination (ACE) and the Frontal Assessment Battery (FAB).

Trial locations and contacts

1 site in 1 country.

Israel1 site
  • Hadassah Medical Organization

    Jerusalem, 91120

Other trials in Israel

About this study

Official title: Antidepressant Effect of Deep Brain Stimulation (DBS) in Parkinson's Disease (PD) Patients: Relationship of Stimulation Parameters to Improvement in the Clinical Features of Depression in PD Patients.

The purpose of this study is:

  1. To determine, in the context of a prospective clinical trial, whether stimulation parameters in PD patients treated with DBS, are associated with antidepressant effects.
  2. To determine whether these antidepressant effects are related to or independent of changes in the motor features of PD.
  3. To establish a computerized database that includes stimulation parameters and clinical parameters in PD patients treated with DBS.
  4. To develop a computer-assisted decision making protocol for programming of DBS parameters in both depressed and non-depressed PD patients.
Read the detailed description

Depressive symptoms of PD patients are major predictors of their prognosis and quality of life. Therefore, successful treatment of depression is crucial in PD patients. Using deep brain stimulation as an antidepressant (or to augment a standard antidepressant) could be a promising new direction. The hypothesis to be tested in the current project is that treatment with deep brain stimulation will improve both the neurological and the psychiatric (depressive) symptoms of PD. It is further hypothesized that the improvement in depressive symptoms will not be a simple consequence of improvement in neurological status. Data from this open label study will form the basis for planning a larger scale controlled trial in depressed PD patients and exploratory studies in patients with major depression who do not have PD.

Today, programming of DBS is based on the neurological evaluation of the motor features of PD. If our hypothesis is proven, i.e. parameter manipulation of DBS affects the mental features of PD, it is crucial to establish a valid database that will enable to study these effects. Moreover, such a detailed database will be the basis for the development of a computer-assisted decision making protocol for programming of DBS. A novel decision making protocol will maximize the benefits of DBS in both depressed and non-depressed PD patients.

Being tested
DBS parameters setting
Keywords
Parkinson's disease, Major depressive disorder, Deep brain stimulation
Medical subject headings
Parkinson Disease, Depressive Disorder, Major

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • DBS parameters settingDevice

    DBS parameters will be set to increase the DBS affected volume to include both the cognitive and limbic territories in addition to the dorso-lateral motor territories of the STN. This novel approach to parameter selection is directed to achieve improvement in cognitive and limbic as well as motor domains of PD. The patients will therefore be assessed for cognitive, limbic and motor state at multiple time points; there will be a baseline assessment prior to starting treatment (prior to DBS surgery and/or prior to parameters changes); thereafter assessments will follow the stimulation parameter changes; thereafter follow-up assessments at 6 - 12 months. Stimulation parameters will be changed every 2 weeks or earlier if an urgent clinical state emerges. Patients with depression will be monitored for antidepressant effects of stimulation changes. Patients without depression will be monitored for evidence of treatment emergent depression.

Study groups in NCT00885222
Study groupRoleWhat they receive
1Active comparatorPD patient that were treated with STN DBS and developed depression after the surgery (n=5).
Receives: Device: DBS parameters setting
2Active comparatorPD patients with depression that are candidates for STN DBS (n=5).
Receives: Device: DBS parameters setting
3Active comparatorPD patients without depression that are candidates for STN DBS (n=10).
Receives: Device: DBS parameters setting

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. The primary outcome measure of the study will be the stimulation parameters of patients who fulfill criteria for MDD at the inception of trial and manifest remission (HAM-D21 score <7) after 4 months (or less) of DBS treatment.

    Measured: 18 months

Secondary outcomes (1)
  1. Secondary outcome measures will be the relationship between improvement in mental status (as measured by HAM-21, BDI, CGI, HAM-A, BPRS and PDQ39) and change in PD symptoms (as measured by UPDRS).

    Measured: 18 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted21 Apr 2009 (estimated)
  2. Study startMay 2009
  3. Primary completionMay 2010
  4. Study completionMay 2010

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
20 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00885222
Sponsor's protocol ID
Eitan-DBS-PD-MDD-HMO-CTIL
Status last verified
May 2010
First submitted
20 Apr 2009
Last updated
3 Jun 2010
Results posted
No

Questions about this trial

What is this clinical trial studying?

A study testing DBS parameters setting in people with Parkinson's Disease and Major Depressive Disorder, run by Hadassah Medical Organization at 1 site in Israel.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 5 inclusion and 4 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 3 Jun 2010. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Israel. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

The primary outcome measure of the study will be the stimulation parameters of patients who fulfill criteria for MDD at the inception of trial and manifest remission (HAM-D21 score <7) after 4 months (or less) of DBS treatment. (time frame: 18 months). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 3 Jun 2010.

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