HD-tACS for Alcohol Use Disorder

Trial statusNot yet recruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age18-55
SponsorShanghai Mental Health Center

About this trial

This study aims to systematically explore the effectiveness of accelerated HD-tACS in treating AUD, particularly its efficacy in reducing alcohol craving and preventing relapse in AUD patients.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Age range: 18-55 years old, gender not restricted;

Meets the DSM-5 diagnostic criteria for alcohol use disorder (moderate to severe);

AUDIT score ≥ 16;

Baseline score after alcohol cue-induced stimulation is ≥ 3;

Disqualifiers

Currently, there are other substance use disorders (except nicotine);

Currently, there are schizophrenia, bipolar disorder or other severe psychotic disorders;

Has a history of epilepsy or family history of epilepsy;

Has a history of brain trauma, brain surgery or intracranial metal implants;

Trial design

Design model

Parallel

Treatments tested in this trial

  • HD-tACS

    Device

    The stimulation parameters are 40Hz and 2mA. The stimulation protocol is 20 minutes per session, 3 times per day, for a total of 10 consecutive days.

  • Sham HD-tACS

    Device

    The stimulation parameters are 40Hz and 2mA. The stimulation protocol is 20 minutes per session, 3 times per day, for a total of 10 consecutive days. At the commencement and conclusion of each therapeutic session, a 30-second ramp-up stimulation and a 30-second ramp-down stimulation (totaling 60 seconds) are administered, respectively, while the current output of the device is maintained at zero throughout the intervening interval.

Treatment groups

140 Participants
are divided into 2 treatment groups
Group A: HD-tACS groupExperimental treatment 1 intervention
Group B: Sham HD-tACS groupSham comparator 1 intervention

Trial outcomes

Primary outcomes

1

Change of Craving

Visual Analog Scale, range 0-100 point, the higher the score, the more one wants drugs.

Time frame
baseline; The 2nd, 4th, 6th, 8th and 10th days during the intervention period; 4 weeks after treatment; 12 weeks after treatment

Secondary outcomes

1

impulsivity

Stop Single Task

Time frame
baseline; 1 day after the treatment was completed
2

Negative reinforcement learning task

The negative reinforcement learning task was adopted to evaluate the patients' avoidance-avoidance behaviors and learning. By calculating and modeling, the avoidance-avoidance behavior bias (active avoidance bias ) and the learning rates based on different feedback: learning from successfully avoiding the aversive stimulus; learning from experiencing the aversive stimulus) were constructed.

Time frame
baseline; 1 day after treatment was completed
3

Changes in Reward Learning

Reward Learning Task

Time frame
baseline; 1 day after treatment was completed
4

Compulsory drinking

The Obsessive Compulsive Drinking Scale (OCDS) assesses compulsive thoughts and impulsive behaviors related to alcohol consumption. It consists of 14 items, each rated on a 5-point scale from 0 to 4. Scores ranging from 0 to 14 indicate almost no compulsive drinking characteristics, 15 to 28 indicate obvious compulsive thoughts or impulses, and scores above 29 indicate a significant compulsive drinking pattern with a high risk of relapse.

Time frame
baseline; 1 day after treatment was completed

Other outcomes

Sponsors and contacts

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