アルコール依存症の脆弱性の機能的神経画像：mGluR5阻害剤Mavoglurantを使用したグルタミン酸と報酬の調査
The purpose of this study is to evaluate the role of Mavoglurant in clarifying the neurobiology of alcoholism risk. This is a one-site, randomized, within subjects, counterbalanced double-blind study of a single dose (200mg) of Mavoglurant and placebo.
調査の概要
詳細な説明
This project explores the effects of 1 dose of Mavoglurant, an experimental non-competitive antagonist to metabotropic glutamate receptor-5 (mGlur5) developed by Novartis, in a double-blind, randomized, counterbalanced manner on alcoholism risk-relevant tasks. Drug/placebo will be administered on 2 separate visits separated by 1 week. More specifically, this project examines 4 functional MRI tasks related to different aspects of reward and/or impulsivity-related behavior in different contexts, compares the underlying neural circuitry across tasks, and uses a pharmacologic probe of the glutamatergic system to examine N-methyl-D-Aspartate and Dopamine (NMDA/DA) interactions. The combined measures provide the opportunity to advance our understanding of specific aspects of brain function related to familial alcoholism vulnerability in an already well characterized population as some members evolve into alcohol abuse. In addition, as well as conventional within-task analyses, functional network connectivity and allied approaches will be used to examine brain networks across the tasks.
研究の種類
入学 (実際)
段階
- 初期フェーズ 1
連絡先と場所
研究場所
-
-
Connecticut
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Hartford、Connecticut、アメリカ、06106
- Hartford Hospital
-
-
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:
- Ages 18-45 years
- Estimated full-scale IQ>70
- Individual can cooperate with all study procedures
- No history of neurological disorder (e.g., epilepsy)
- No major medical condition (e.g., cancer)
- No history of significant head trauma
- Stable medication treatment 6 weeks prior to study enrollment
- Negative urine drug and breathe alcohol test at time of MRI scan
- Negative urine pregnancy test at time of MRI scan
- No MR contra-indications (e.g., in-body metal implant, severe claustrophobia)
- No contra-indications to study drug
Exclusion Criteria:
- A diagnosis of any psychotic disorder, or current mood or anxiety disorders under DSM-V, using the SCID-V-RV psychiatric interview
- A current diagnosis of: a) Alcohol use disorder, if severe (AUD, mild or moderate OK if no craving, tolerance, and withdrawal 3 months prior to interview) b) Substance use disorder
- Report of psychotic disorder in a 1º relative
- Auditory or visual impairment that interferes with test-taking
- Prenatal exposure to alcohol plus currently meeting criteria for features of fetal alcohol syndrome
- Not speaking English fluently or being a non-native English speaker, or being educated in a primary language other than English > grade 1
- Intellectual Disability (Full Scale IQ<70)
- Traumatic brain injury with loss of consciousness > 30 minutes or concussion in last 30 days
- Presence or history of neurosurgery or any neurologic illness that may affect brain physiology (e.g., epilepsy, Multiple Sclerosis), including focal brain lesion seen on structural MRI (all structural scans are read by a board certified radiologist)
- A current major medical condition (e.g. cancer, heart failure)
- Current pregnancy (all females will be tested with urine screens on the day of MRI)
- Women not on an effective form of birth control/contraception or abstinent during time of study visits to prevent exposure of the investigational drug to suspected fetus
- Current substance use with the exception of marijuana (THC), provided last use of THC was 24+ hours before visit (All participants will receive a urine screen for the presence of marijuana, cocaine, opiates and a breath screen to detect the presence of alcohol)
- Inability to comprehend the consent form appropriately
- Inability to cooperate with study procedures
- Other specific fMRI exclusions include metal devices, clips or fragments in body (orbital xray performed if needed)
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：防止
- 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：ダブル
武器と介入
参加者グループ / アーム |
介入・治療 |
|---|---|
|
実験的：FHP; Mavoglurant-Placebo
Family History Positive (FHP) for alcoholism will be given a single dose of AFQ056 (200 mg) then placebo in two separate experimental study visits separated by 1 week. Drug and Placebo administered 2 hours prior to the MRI and other measures. |
Two 100mg tablets of Mavoglurant will be administered on the morning of one of the two experimental days by a RN or the physician investigator. Two matching tablets of placebo will be administered on the morning of one of the two experimental days by an RN or the physician investigator. |
|
実験的：FHP; Placebo-Mavoglurant
Family History Positive (FHP) or alcoholism will be given a single dose of placebo then AFQ056 (200 mg) in two separate experimental study visits separated by 1 week. Drug and Placebo administered 2 hours prior to the MRI and other measures. |
Two 100mg tablets of Mavoglurant will be administered on the morning of one of the two experimental days by a RN or the physician investigator. Two matching tablets of placebo will be administered on the morning of one of the two experimental days by an RN or the physician investigator. |
|
実験的：FHN; Mavoglurant-Placebo
Family History Negative (FHN) for alcoholism will be given a single dose of AFQ056 (200 mg) then placebo in two separate experimental study visits separated by 1 week. Drug and Placebo administered 2 hours prior to the MRI and other measures. |
Two 100mg tablets of Mavoglurant will be administered on the morning of one of the two experimental days by a RN or the physician investigator. Two matching tablets of placebo will be administered on the morning of one of the two experimental days by an RN or the physician investigator. |
|
実験的：FHN; Placebo-Mavoglurant
Family History Negative (FHN) for alcoholism will be given a single dose of placebo then AFQ056 (200 mg) in two separate experimental study visits separated by 1 week. Drug and Placebo administered 2 hours prior to the MRI and other measures. |
Two 100mg tablets of Mavoglurant will be administered on the morning of one of the two experimental days by a RN or the physician investigator. Two matching tablets of placebo will be administered on the morning of one of the two experimental days by an RN or the physician investigator. |
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 |
|---|---|---|
|
Change in Nucleus accumbens (Nacc)/Ventral striatum (VS) BOLD activation during A1 phase in FHP on study medication vs. placebo
時間枠：Mavoglurant and Placebo administration are 1 week apart
|
Changes in NAcc/VS BOLD (Blood-oxygen-level-dependent) activation during the A1 loss anticipation prospect phase of the MRI Monetary Incentive Delay task in FHP while on mavoglurant compared to placebo |
Mavoglurant and Placebo administration are 1 week apart
|
|
BOLD activation to alcohol vs. non-alcohol stimuli during ACR task alcohol versus non-alcohol stimuli
時間枠：Mavoglurant and Placebo administration are 1 week apart
|
Changes in BOLD response in FHP to alcohol versus non-alcohol stimuli in several brain clusters containing MFC, caudate, parahippocampal gyrus, temporal cortex and cerebellum, when administered mavoglurant compared to placebo |
Mavoglurant and Placebo administration are 1 week apart
|
二次結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
Dynamic Causal Modeling (DCM)-determined relationships between nucleus accumbens (NAcc) and -medial PFC BOLD signal during MSDM task
時間枠：Mavoglurant and Placebo administration are 1 week apart
|
Dynamic Causal Modeling (DCM)-determined relationships between nucleus accumbens (NAcc) and -medial PFC BOLD signal during MSDM fMRI task in FHP while on mavoglurant compared to placebo |
Mavoglurant and Placebo administration are 1 week apart
|
|
Regional differences in BOLD signal
時間枠：Mavoglurant and Placebo administration are 1 week apart
|
Impairment of top down inhibitory control and related cortical activation of the executive control network in FHP while on mavoglurant compared to placebo measured by regional differences in BOLD signaling |
Mavoglurant and Placebo administration are 1 week apart
|
協力者と研究者
スポンサー
捜査官
- 主任研究者：Godfrey D Pearlson, MD、Yale University
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 (実際)
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
追加の関連 MeSH 用語
その他の研究ID番号
- HHC-2021-0006
- 2P50AA012870-21 (米国 NIH グラント/契約)
- 2000032425 (その他の識別子：Yale IRB)
医薬品およびデバイス情報、研究文書
米国FDA規制医薬品の研究
米国FDA規制機器製品の研究
米国で製造され、米国から輸出された製品。
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