Refining the Target for Deep Brain Stimulation (DBS) in Severe, Treatment Refractory Obsessive Compulsive Disorder (OCD)
In select, therapy resistent patients with Obsessive Compulsive Disorder (OCD) Deep Brain Stimulation (DBS) has been used as a treatment. DBS is a therapy modality in which electrodes are implanted within specific sub-structures of the brain in order to modulate the activity in targeted neural circuits associated with different neurological disorders. The results of this novel approach to psychiatric disorders have been optimistic. This study aims to investigate wether or not the distance to target location has an influence on the outcome.
In order to deliver DBS, leads containing four electrodes are implanted into the brain target in the ventral capsule/ventral striatum (VC/VS). After an optimization period, patients enter a triple blind randomised two fazed crossover design of two periods of three months. In both crossover branches, patients, evaluating psychiatrist and psychologist are blinded for the stimulation conditions. These conditions are stimulation ON (at optimal parameters) and stimulation OFF. Stimulation parameters are constant during the entire period. During the second crossover branch, stimulation conditions are reversed for all patients.
調査の概要
研究の種類
入学 (実際)
段階
- フェーズ2
- フェーズ 1
連絡先と場所
研究場所
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Vlaams-Brabant
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Leuven、Vlaams-Brabant、ベルギー、3000
- UZ Leuven
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-
参加基準
適格基準
就学可能な年齢
健康ボランティアの受け入れ
受講資格のある性別
説明
Inclusion Criteria:
- Diagnosis of OCD following the diagnostic and statistical manual of mental disorders-fourth edition (DSM-IV) criteria for OCD (300.3).
- Failure of documented trials of pharmacotherapy, following an appropriate treatment algorithm for OCD.
- Failure of documented trial of cognitive and behavioural therapy
- Duration of illness: min. 5 year
- Y-BOCS at least 30/40.
- Age: 20-65 year
Exclusion Criteria:
- DSM-IV diagnosis on axis 2 of severe personality disorder in cluster A or B, especially in the case of heightened risk for acting-out behavior.
- DSM-IV diagnosis on axis 3 of organic brain pathology or significant abnormalities on MRI.
- Present or past history of psychotic symptoms.
- Present substance abuse, or instable remission of substance abuses (i.e. no substance abuse during the last 12 months).
- Any disorder affecting cognitive functioning, other than motor tics and Gilles de la Tourette's Syndrome
- Mental retardation. A minimum threshold of cognitive skills is needed for adequate reporting on questionnaires and evaluation, and for technical handling of the instruments in a later faze.
- The patient must be juridical free.
研究計画
研究はどのように設計されていますか？
デザインの詳細
- 主な目的：処理
- 割り当て：ランダム化
- 介入モデル：クロスオーバー割り当て
- マスキング：トリプル
武器と介入
参加者グループ / アーム |
介入・治療 |
|---|---|
|
実験的：VC/VS stimulation ON followed by OFF
triple blind, randomised, two periods of three months
|
他の名前：
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実験的：VC/VS stimulation OFF followed by ON
triple blind, randomised, two periods of three months
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他の名前：
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この研究は何を測定していますか？
主要な結果の測定
結果測定 |
時間枠 |
|---|---|
|
Yale Brown Obsessive Compulsive Scale (Y-BOCS)
時間枠：up to 12 months
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up to 12 months
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二次結果の測定
結果測定 |
時間枠 |
|---|---|
|
Clinical Global Impression (CGI)
時間枠：up to 12 months
|
up to 12 months
|
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Global assessment of functioning (GAF)
時間枠：up to 12 months
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up to 12 months
|
|
Hamilton scale for anxiety
時間枠：up to 12 months
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up to 12 months
|
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Beck depression inventory
時間枠：up to 12 months
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up to 12 months
|
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Inventory of Depressive Symptoms (IDS)
時間枠：up to 12 months
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up to 12 months
|
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Patient Global Impression (PGI).
時間枠：up to 12 months
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up to 12 months
|
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Symptom Checklist (SCL-90)
時間枠：up to 12 months
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up to 12 months
|
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Quality of Life and Satisfaction Questionnaire (Q-Les-Q)
時間枠：up to 12 months
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up to 12 months
|
協力者と研究者
研究記録日
主要日程の研究
研究開始
一次修了 (実際)
試験登録日
最初に提出
QC基準を満たした最初の提出物
最初の投稿 (見積もり)
学習記録の更新
投稿された最後の更新 (見積もり)
QC基準を満たした最後の更新が送信されました
最終確認日
詳しくは
この情報は、Web サイト clinicaltrials.gov から変更なしで直接取得したものです。研究の詳細を変更、削除、または更新するリクエストがある場合は、register@clinicaltrials.gov。 までご連絡ください。 clinicaltrials.gov に変更が加えられるとすぐに、ウェブサイトでも自動的に更新されます。