Pharmacotherapy and Mechanisms of Sleep Disturbance in Alcohol Dependence (MA)
This is a Study Exploring the Reasons Why People With Alcohol Dependence Have Sleep Disturbances, and Whether or Not a Study Medication, Gabapentin, vs. Placebo, Affects Those Sleep Patterns.
Insomnia and other sleep abnormalities are common, persistent, and associated with relapse in alcohol-dependent patients. The overall, long-term objectives of the proposed research are to investigate the neurophysiologic mechanisms of sleep disturbance that are associated with relapse in patients with alcohol dependence, and to target those mechanisms with medication in order to reduce relapse risk.
The specific research aims are:
- To investigate three potential mechanisms of sleep disturbance in alcoholic patients: impaired sleep drive, impaired circadian regulation of alertness, and brain hyperactivation;
- To investigate short-term effects of medication on sleep and its regulatory mechanisms in alcoholics;
- To investigate the short-term clinical course of alcoholism as a function of baseline sleep parameters.
In Study Phases I & II (Screening & Baseline: 10+ days), subjects are assessed to diagnose alcohol dependence, determine baseline values for drinking and sleeping, and rule out confounding sleep-impairing causes.
Phase III (Medication: 10 days), is a randomized, double-blind parallel design comparison of gabapentin vs. placebo on mechanisms of sleep. It is not a therapeutic or clinical trial. Phases II & III each have 7 days of monitoring sleep and activity, followed by 3 nights in the University of Michigan (UM) sleep laboratory to assess all-night EEG activity and Dim-Light Melatonin Onset (DLMO), a measure of circadian rhythm.
Phase IV is a 2-day medication taper and Phase V (Follow-up) consists of one visit or telephone call after 12 weeks to assess course of drinking.
In summary, sleep disturbance in alcoholic patients increases their risk of relapse. This study proposes to investigate the mechanisms causing sleep disturbance in alcoholics and to determine if those mechanisms predict return to drinking after 12 weeks.
Relevance: Alcoholism is a devastating chronic disorder that in any one year affects 10% of adults, costs over $185 billion, and causes more than 100,000 deaths in the U.S. Despite treatment, most alcoholic patients achieve only short-term abstinence. Medically-based treatment improvements are needed that target neurophysiologic mechanisms of relapse. Overall public health will be improved by developing science-based treatments that can augment existing, but only partially effective, treatment approaches.
調査の概要
研究の種類
入学 (実際)
段階
- 適用できない
連絡先と場所
研究場所
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Michigan
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Ann Arbor、Michigan、アメリカ、48109
- University of Michigan Health System
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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:
- Meet DSM-IV criteria for alcohol dependence (as confirmed by the SCID)
- Between 3 and 12 weeks since last drink (as measured by the TLFB)
- At least 2 weeks since last detoxification medication, if relevant
- An alcohol withdrawal rating score < 8 (as measured by the CIWA-Ar) to rule out acute alcohol withdrawal effects on sleep.
- Expresses a desire to stop drinking or a willingness to abstain from alcohol and/or other drugs of abuse (except nicotine) during the course of the study
Exclusion Criteria:
- Subjects who meet DSM-IV criteria for dependence on any psychoactive substance other than alcohol (except nicotine) in the past 3 months (per SCID interview).
- Subjects with a current (past 1 month) DSM-IV diagnosis of panic disorder, generalized anxiety disorder, post-traumatic stress disorder, major depression, anorexia nervosa, or bulimia nervosa (per SCID interview) and/or that require ongoing psychotropic medication.
- Subjects who have a lifetime diagnosis meeting DSM-IV criteria for bipolar disorder, schizophrenia, schizoaffective disorder, delusional (paranoid) disorders, or obsessive-compulsive disorder.
- Urine drug screen positive for amphetamines, barbiturates, benzodiazepines, cocaine, marijuana, or opioids. (If positive, subjects have one opportunity to test negative after a week of abstinence).
- Medical disorders or pain syndromes that may affect sleep; history of head trauma with loss of consciousness; history of seizures (except alcohol-related seizures).
- Subjects with elevated renal tests (blood urea nitrogen or creatinine), because gabapentin is renally eliminated, or elevated liver transaminases (>3X normal), or abnormal thyroid tests as thyroid problems can affect sleep.
- Sleep disorders other than insomnia such as sleep apnea/hypopnea index >10 per hour or periodic limb movement disorder; PLM>15 movements per hour with arousals.
- Taking medications known to affect sleep (e.g., antidepressants, anticonvulsants, centrally acting antihistamines, neuroleptics, sedative-hypnotics, stimulants, centrally acting antihypertensives [alpha-methyldopa, reserpine, clonidine], oral corticosteroids, and theophylline within the past 2 weeks or 5 weeks for fluoxetine).
- Subjects taking medications used to treat addiction (e.g., disulfiram, naltrexone or acamprosate) are excluded because of unknown effects on sleep.
- Subjects who do evening or midnight shift work. (Subjects who have traveled across multiple time zones in the previous two weeks will be included only at the discretion of the P.I.)
- Pregnancy, breast feeding, or inadequate contraception in women of child-bearing potential.
- Subjects who are unable or unlikely to follow the study protocol in the investigator 's opinion, because of cognitive deficits (Mini-Mental State Exam score < 27), a personality disorder, a serious suicide risk, dangerousness to others, illiteracy, or unstable or distant living situation.
- Subjects with a known allergy, hypersensitivity or contraindication to study medication.
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：他の
- 割り当て：ランダム化
- 介入モデル：並列代入
- マスキング：ダブル
武器と介入
参加者グループ / アーム |
介入・治療 |
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プラセボコンパレーター：Placebo
After 3 nights in the UM sleep lab and randomization, this arm receives placebo for one week.
They then return to the sleep lab for the same procedures.
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Placebo for 11 days, (one pill at bedtime on nights 1 and 2, 2 pills at bedtime on nights 3-10, and 1 pill at bedtime on night 11, then D/C).
They return to the Sleep Lab for polysomnography on nights 8 - 10 of medication so their sleep data can be compared.
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アクティブコンパレータ：Gabapentin
After spending 3 baseline nights in the UM sleep lab, alcohol dependent subjects are randomized.
This arm receives gabapentin .
On nights 1 and 2 of medication, the dose is 600 mg by mouth 30 min before bedtime.
On nights 3-10, the dose is 1200 mg by mouth 30 min before bedtime.
On nights 8-10 of medication, subjects return to the UM sleep lab and complete 3 sleep nights with the same procedures.
On night 11, the dose is reduced to 600 mg by mouth 30 min before bedtime, and then stopped.
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After spending 3 baseline nights in the UM Sleep Lab, alcohol dependent subjects are randomized to receive either gabapentin or placebo for 11 days.
(1 pill (600 mg) at bedtime on nights 1 and 2, 2 pills (totalling 1200 mg) at bedtime on nights 3-10, and 1 pill (600 mg) at bedtime on night 11, then D/C).
On nights 8 - 10 of medication, subjects return to the lab and sleep 3 more nights with the same procedures.
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 |
メジャーの説明 |
時間枠 |
|---|---|---|
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Percentage of Total Sleep Time in Stage 2 Sleep Pre- and Post-study Medication (Stage 2 Percent)
時間枠：1 week
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Electrophysiological measures of sleep stages: percent of total sleep time in stage 2 sleep
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1 week
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Wake Time After Sleep Onset (WASO) Measured in Sleep Laboratory Recordings Pre- and Post- Study Medication
時間枠：1 week
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Wake time after sleep onset (WASO) (number of minutes awake throughout the night after initial sleep onset)
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1 week
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二次結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
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Relapse to Any Drinking
時間枠：12 weeks
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Relapse to any drinking is counted as participants who drank any beverage alcohol from end of sleep laboratory study (night 10) to twelve weeks later
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12 weeks
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協力者と研究者
スポンサー
捜査官
- 主任研究者：Kirk J Brower, M.D.、University of Michigan
研究記録日
主要日程の研究
研究開始 (実際)
一次修了 (実際)
研究の完了 (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 (実際)
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
本研究に関する用語
キーワード
追加の関連 MeSH 用語
その他の研究ID番号
- HUM00010947
- 1R01AA016117-01A1 (米国 NIH グラント/契約)
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