Effects of Subconscious Memory Extinction in Patients With Alcohol Dependence and Its Mechanism

NCT ID: NCT05942521

Last Updated: 2023-10-16

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Clinical Phase

NA

Total Enrollment

90 participants

Study Classification

INTERVENTIONAL

Study Start Date

2023-07-20

Study Completion Date

2024-12-31

Brief Summary

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In this study, the subconscious memory extinction therapy based on very brief exposure is used to intervene to reduce the alcohol craving of alcohol-dependent patients, prevent relapse, and observe the psychological craving, heart rate, skin conductance, and pupil diameter changes of the patients during the brief exposure extinction. The main questions it aims to answer are:

1. Whether subconscious extinction intervention would reduce psychological craving and alcohol relapse?
2. What is the mechanism of subconscious extinction intervention in alcohol dependence?

Detailed Description

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After being informed about the study and potential risks, all patients giving written informed consent will undergo a screening period to determine eligibility for study entry. patients who meet the eligibility requirements will be randomized in very brief extinction, clearly visible extinction, or very brief neutral extinction. This study will recruit alcohol-dependent participants aged 18-60 in the ward, observe reported subjective scores during the extinction, and record the heart rate, skin conductance, pupil diameter, and ERP changes.

Conditions

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Alcohol Use Disorder

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

DOUBLE

Participants Outcome Assessors

Study Groups

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Very brief extinction

Enrolled participants would receive very brief extinction approximately 25 minutes per day for 2 days.

Group Type EXPERIMENTAL

Very brief extinction

Intervention Type BEHAVIORAL

The very brief extinction presents a very short (33ms) repetitive sequence of alcohol cues, followed by a "masking" stimulus(117ms), which masks the alcohol cues. In the case of repeated exposure to alcohol stimulation, the response to the stimulation is desensitized at the level of unconscious processing.

Very brief neutral extinction

Enrolled participants would receive very brief neutral extinction for approximately 25 minutes per day for 2 days.

Group Type SHAM_COMPARATOR

Very brief neutral extinction

Intervention Type BEHAVIORAL

The very brief neutral extinction presents a very short (33ms) repetitive sequence of neutral cues, followed by a "masking" stimulus(117ms), which masks the neutral cues. In the case of repeated exposure to neutral stimulation, the response to the stimulation is desensitized at the level of unconscious processing.

Clearly visible extinction

Enrolled participants would receive clearly visible extinction therapy for approximately 25 minutes per day for 2 days.

Group Type ACTIVE_COMPARATOR

Clearly visible extinction

Intervention Type BEHAVIORAL

The clearly visible extinction presents a repetitive sequence of alcohol cues(150ms) without a "masking" stimulus. In the case of repeat exposure to alcohol stimulation, the response to the stimulation is desensitized at the level of conscious processing.

Interventions

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Very brief extinction

The very brief extinction presents a very short (33ms) repetitive sequence of alcohol cues, followed by a "masking" stimulus(117ms), which masks the alcohol cues. In the case of repeated exposure to alcohol stimulation, the response to the stimulation is desensitized at the level of unconscious processing.

Intervention Type BEHAVIORAL

Clearly visible extinction

The clearly visible extinction presents a repetitive sequence of alcohol cues(150ms) without a "masking" stimulus. In the case of repeat exposure to alcohol stimulation, the response to the stimulation is desensitized at the level of conscious processing.

Intervention Type BEHAVIORAL

Very brief neutral extinction

The very brief neutral extinction presents a very short (33ms) repetitive sequence of neutral cues, followed by a "masking" stimulus(117ms), which masks the neutral cues. In the case of repeated exposure to neutral stimulation, the response to the stimulation is desensitized at the level of unconscious processing.

Intervention Type BEHAVIORAL

Eligibility Criteria

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Inclusion Criteria

1. Adopt DSM-IV alcohol dependence diagnostic criteria;
2. Complete detoxification treatment without obvious withdrawal symptoms;
3. Informed consent, voluntary participation.

Exclusion Criteria

1. Acute alcohol dependence withdrawal period;
2. Patients who meet the DSM-Ⅳ diagnosis of psychoactive substances or non-psychoactive substances other than alcohol (except nicotine);
3. Previous acceptance experienced similar exposure therapy;
Minimum Eligible Age

18 Years

Maximum Eligible Age

60 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Shenzhen Kangning Hospital

OTHER

Sponsor Role lead

Responsible Party

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Xiaojian Jia

Professor

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Xiaojian Jia

Role: PRINCIPAL_INVESTIGATOR

Shenzhen Kangning Hospita

Locations

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Shenzhen Kangning Hospital

Shenzhen, Guangdong, China

Site Status RECRUITING

Countries

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China

Central Contacts

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Xiaojian Jia

Role: CONTACT

+8613823797115

Qi Wang

Role: CONTACT

+8613688819667

Facility Contacts

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Xiaojian Jia

Role: primary

+8613823797115

Qi Wang

Role: backup

+8613688819667

Other Identifiers

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2022-K013-01

Identifier Type: -

Identifier Source: org_study_id

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