We are updating the design of this site. Learn more.
Show more
ClinicalTrials.gov Menu

Deep Brain Stimulation (DBS) for Treatment Resistant Bipolar Disorder (DBS-BIPO)

The recruitment status of this study is unknown. The completion date has passed and the status has not been verified in more than two years.
Verified October 2013 by Thomas E. Schlaepfer, MD, University Hospital, Bonn.
Recruitment status was:  Recruiting
ClinicalTrials.gov Identifier:
First Posted: June 14, 2011
Last Update Posted: October 29, 2013
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
Information provided by (Responsible Party):
Thomas E. Schlaepfer, MD, University Hospital, Bonn
May 6, 2011
June 14, 2011
October 29, 2013
May 2010
May 2015   (Final data collection date for primary outcome measure)
  • Depression Severity rated with Montgomery Asberg Depression Scale (MADRS) [ Time Frame: 12 month after DBS stimulation onset ]
    The Montgomery-Åsberg Depression Rating Scale (abbreviated MADRS) is a ten-item diagnostic questionnaire which psychiatrists use to measure the severity of depressive episodes in patients with mood disorders. It was designed in 1979 by British and Swedish researchers as an adjunct to the Hamilton Rating Scale for Depression (HAMD) which would be more sensitive to the changes brought on by antidepressants and other forms of treatment than the Hamilton Scale is.
  • Young Mania Rating Scale (YMRS) [ Time Frame: 12 month after DBS stimulation onset ]
    One of the most frequently used rating scales to assess manic symptoms. The scale has 11 items and is based on the patient's subjective report of his or her clinical condition over the previous 48 hours. This scale will be used to assess the development of manic symptoms over time, mainly in order to assess treatment emergent manic symptoms.
Same as current
Complete list of historical versions of study NCT01372722 on ClinicalTrials.gov Archive Site
  • Depression Severity rated with Hamilton Depression Rating Scale (HDRS24) [ Time Frame: 12 month after DBS stimulation onset ]
    The Hamilton Rating Scale for Depression (HRSD), also known as the Hamilton Depression Rating Scale (HDRS) or abbreviated to HAM-D, is a multiple choice questionnaire that clinicians may use to rate the severity of a patient's major depression. The questionnaire rates the severity of symptoms observed in depression such as low mood, insomnia, agitation, anxiety and weight loss. The questionnaire is presently one of the most commonly used scales for rating depression in medical research.
  • Adverse Event Schedule [ Time Frame: 12 month after DBS stimulation onset ]
    Adverse events induced by the Stimulation will be recorded during the study using a structured questionnaire. 12 months after stimulation onset results will be compiled and rated as being due to DBS or not.
  • Comprehensive neuropsychological test battery [ Time Frame: 12 month after DBS stimulation onset ]
    • General cognitive functions (Mini-Mental State Examination)
    • Attention (d2 attention-burden test)
    • Learning and memory tests covering verbal and visual spatial learning, memory and working memory (Verbal Learning and Memory Test, Rey Visual Design Learning Test,Wechsler Memory Scale)
    • language (HAWIE lexis tests, HAWIE finding similarities)
    • Executive functions (Trail Making Tests, Five-Point Test, and the Stroop test)
    • Visual perception (Hooper Visual Organization Test)
Same as current
Not Provided
Not Provided
Deep Brain Stimulation (DBS) for Treatment Resistant Bipolar Disorder
Phase I Study of Bilateral DBS to the Nucleus Accumbens (NAcc-DBS) for Treatment Resistant Bipolar Disorder

Hypothesis to be tested:

Bilateral Deep Brain Stimulation to the Nucleus Accumbens is associated with clinically and statistically significant improvement in patients with treatment resistant bipolar disorder.

Overall Objective:

The aim in this interdisciplinary, psychiatric-neurosurgical project is to evaluate safety and efficacy of bilateral Deep Brain Stimulation to the Nucleus Accumbens (NAcc) using the Medtronic Activa RC Neurostimulator in patients with treatment resistant Bipolar Disorder.

Not Provided
Phase 2
Phase 3
Allocation: Randomized
Intervention Model: Crossover Assignment
Masking: Triple (Participant, Care Provider, Outcomes Assessor)
Primary Purpose: Treatment
Bipolar Disorder
  • Device: DBS Activa PC systems Medtronic
    130Hz, 90us pulsewidth, 4V Amplitude
  • Device: DBS, Activa PC systems Medtronic
    30Hz, 90us pulsewidth, 4V Amplitude
  • Experimental: Sham then Stimulation
    Intervention: Device: DBS Activa PC systems Medtronic
  • Experimental: Stimulation then Sham
    Intervention: Device: DBS, Activa PC systems Medtronic
Not Provided

*   Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
Unknown status
July 2015
May 2015   (Final data collection date for primary outcome measure)

Inclusion Criteria:

  • Age 20-70 years old. • German mother tongue • Ability to provide written informed consent.
  • At least one manic or hypomanic episode according to DSM IV previous to onset of last depressive episode.
  • Global Assessment of Function (GAF) score of > 46 • 5 years after the first episode of MD • DSM IV criteria for a current Major Depressive Episode (MDE) diagnosed by structured clinical interview for DSM IV. Diagnosis will be confirmed by two independent psychiatrists. • Current episode of MD > two years duration OR a history of more than 4 lifetime depressive episodes. • Minimum score at study entry of 28 on the 24-item Hamilton Depression Rating Scale (HDRS24).
  • Average pre-operative HDRS24 score of 28 or greater (averaged over screening period) and a final preoperative HDRS24 score no more than 30% lower than the baseline screening HDRS score. • Treatment-resistant depression defined as: • Failure to respond to a minimum of four different antidepressant treatments, including medications and evidence-based psychotherapy (> 20 sessions with an experienced psychotherapist) administered at adequate doses and duration during the current episode. We will require documentation (i.e., statement from the treating psychiatrist) that a treatment trial has failed (either no response to maximum tolerable doses for a minimum of 5 weeks, or side-effects at sub-maximal doses) as coded by the Antidepressant Treatment History Form (ATHF). The study investigators will document each treatment by way of review of records from referring psychiatrists. • Failure or intolerance of an adequate course of electroconvulsive therapy (ECT) during any episode (> 6 bilateral treatments).
  • A patient may remain on psychotropic medications during this study. However, doses must remain stable during a one month pre-operative evaluation period, the single blind phase and the open stimulation phase.

-If currently in psychotherapy, a patient must have been in this therapy for at least six months and continue to attend scheduled visits at no greater or lesser frequency than during the last three months. -

  • Patients must have an established outpatient psychiatrist.
  • Patients are able to fulfill the study requirements.
  • Patients are in good general health.

Exclusion Criteria:

  • Inability to tolerate general anesthesia.
  • Any current clinically significant neurological disorder or medical illness affecting brain function, other than motor tics or Gilles de la Tourette syndrome
  • Any clinically significant abnormality on preoperative magnetic resonance imaging (MRI)
  • Cerebrovascular risk factors or a previous stroke, documented head trauma or neurodegenerative disorders.
  • Other clinically significant Axis I psychiatric diagnoses including schizophrenia, bipolar I disorder (patients with bipolar II disorder will be included), panic disorder, obsessive-compulsive disorder, generalized anxiety disorder or post-traumatic stress disorder in the previous 12 months. Patients with severe Axis II personality disorders will also be excluded if they have the potential to interfere with cooperation during the pre- and post-operative phases of the study.
  • Current psychotic symptoms.
  • Current mixed episode.
  • Evidence of global cognitive impairment.
  • Substance abuse or dependence within the last year (except nicotine).
  • Active suicidal ideation.
  • Pregnancy and women of childbearing age not using effective contraception or currently nursing.
  • General contraindications for DBS surgery (impossibility to conduct pre-operative fMRI, infections, claustrophobia, pregnancy, impossibility to stay awake during electrode implantation, medical risks regarding the operation, cardiac pacemaker/defibrillator or other implanted devices).
  • Inability or unwillingness to comply with long-term follow-up.
  • Patients who are not able to read and understand the consent form, or who are not capable of understanding or giving informed consent to the procedures of the study.
  • History of intolerance to stimulation of any area of the body
  • Participation in another drug, device or biologics trial within the preceding 30 days.
  • Conditions requiring repeated MRI scans
  • Conditions requiring diathermy
  • Conditions requiring anticoagulant medication
Sexes Eligible for Study: All
20 Years to 70 Years   (Adult, Senior)
Contact information is only displayed when the study is recruiting subjects
Not Provided
Not Provided
Thomas E. Schlaepfer, MD, University Hospital, Bonn
University Hospital, Bonn
Not Provided
Not Provided
University Hospital, Bonn
October 2013

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP