New Therapeutic Strategies for Inhibitory Control in Alcoholism

NCT ID: NCT03058276

Last Updated: 2023-03-08

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

Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.

Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

105 participants

Study Classification

INTERVENTIONAL

Study Start Date

2016-01-01

Study Completion Date

2020-12-31

Brief Summary

Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.

This experimental research studies the efficacy of two different treatments for inhibitory control improvement in alcohol-dependent individuals, one consisting of Retrieval-Extinction Learning ( alcohol AAT Task) and the other consisting in rTMS of the right dorsolateral prefrontal cortex.

Detailed Description

Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.

The main purpose of this study is to demonstrate the efficacy of two different treatments for inhibitory control improvement (measured by the modified Stop signal task): a behavioral treatment based on Retrieval-Extinction Learning, through the AAT (Alcohol Approach Avoiding Task) and a treatment based on the neuromodulation of prefrontal cortex through the rTMS (repetitive transcraneal magnetic stimulation) technique. To carry out this study, 105 alcoholic patients will be compared for clinical variables (abstinence/relapses), self-informed (UPPS) and behvavioral impulsivity (Stop signal task), along with biological measures for polymorphism determinations. Alcohol-dependent individuals will be divided into 4 groups of study (1:1 proportion for Retrieval-Extinction Learning with AAT and 2:1 (double for the effective technique comparing to placebo/control) for rTMS): Group 1 (N=30): exposure to an alcohol-related video followed by AAT; Group 2 (N=30): neutral-content video followed by AAT; Group 4 (30): active stimulation rTMS (10 Hz) ; Group 4 (N=15): placebo stimulation SAM.

Conditions

See the medical conditions and disease areas that this research is targeting or investigating.

Alcoholism

Study Design

Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.

Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

DOUBLE

Participants Investigators
Double-blinded experiment regarding rTMS treatment is applied to both subjects and investigators. The only non-masked role is for the technician applying either Magstim Rapid or SAM coils to each group of subjects.

Study Groups

Review each arm or cohort in the study, along with the interventions and objectives associated with them.

Exposure

Exposure to a 5 minutes video related to alcohol consumption (updating/retrieval), followed by 10 minutes of the alcohol- AAT(Approach Avoidance Task) (extinction), during 4 days of training (2 weeks).

Group Type EXPERIMENTAL

Retrieval-Extinction Learning

Intervention Type BEHAVIORAL

The intervention consists of the accomplishment of the task of approach-avoidance of alcohol during 4 days of training. Subjects are instructed to respond with an approach movement (pulling a lever) to neutral images and to respond with avoidance movement (pushing the lever) to images of alcohol.

No exposure

Exposure to a 5 minutes video with neutral content (no retrieval) followed by 10 minutes of the alcohol- AAT (Approach Avoidance Task) , during 4 days of training.

Group Type ACTIVE_COMPARATOR

Retrieval-Extinction Learning

Intervention Type BEHAVIORAL

The intervention consists of the accomplishment of the task of approach-avoidance of alcohol during 4 days of training. Subjects are instructed to respond with an approach movement (pulling a lever) to neutral images and to respond with avoidance movement (pushing the lever) to images of alcohol.

Active rTMS

Each session (5 sessions along 2 weeks), patients receive active stimulation with repetitive transcraneal magnetic stimulation (rTMS) of the right dorsolateral prefrontal cortex.

Group Type EXPERIMENTAL

rTMS

Intervention Type OTHER

Previous to rTMS completion, MRI scans were performed in order to determinate the motor threshold trough 1Hz stimuli and locate the desired area with the neuronavigator. Motor threshold is defined as the stimulus with less intensity, able to generate a motor potential of at least 50 µV in 10 trials. Next, patients were called for 5 times per week, along 2 weeks, for receiving brain stimulation with Magstim Rapid coil. rTMS is performed at 10 Hz, during 4.9 seconds,for each set of stimuli (20), with a interval between sets of 30 seconds.

SAM

Pacients receiving a sham stimulation (SAM), with a similar procedure to the experimental condition

Group Type SHAM_COMPARATOR

SAM

Intervention Type OTHER

Previous to rTMS completion, MRI scans were performed in order to determinate the motor threshold trough 1Hz stimuli and locate the desired area with the neuronavigator. Motor threshold is defined as the stimulus with less intensity, able to generate a motor potential of at least 50 µV in 10 trials. Next, patients were called for 5 times per week, along 2 weeks, for receiving brain stimulation with SAM coil.

Interventions

Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.

Retrieval-Extinction Learning

The intervention consists of the accomplishment of the task of approach-avoidance of alcohol during 4 days of training. Subjects are instructed to respond with an approach movement (pulling a lever) to neutral images and to respond with avoidance movement (pushing the lever) to images of alcohol.

Intervention Type BEHAVIORAL

rTMS

Previous to rTMS completion, MRI scans were performed in order to determinate the motor threshold trough 1Hz stimuli and locate the desired area with the neuronavigator. Motor threshold is defined as the stimulus with less intensity, able to generate a motor potential of at least 50 µV in 10 trials. Next, patients were called for 5 times per week, along 2 weeks, for receiving brain stimulation with Magstim Rapid coil. rTMS is performed at 10 Hz, during 4.9 seconds,for each set of stimuli (20), with a interval between sets of 30 seconds.

Intervention Type OTHER

SAM

Previous to rTMS completion, MRI scans were performed in order to determinate the motor threshold trough 1Hz stimuli and locate the desired area with the neuronavigator. Motor threshold is defined as the stimulus with less intensity, able to generate a motor potential of at least 50 µV in 10 trials. Next, patients were called for 5 times per week, along 2 weeks, for receiving brain stimulation with SAM coil.

Intervention Type OTHER

Eligibility Criteria

Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.

Inclusion Criteria

* Men and women aged between 18 and 50 years old.
* A minimum of 28 days of abstinence
* Consent to participate in the study.

Exclusion Criteria

* Subjects with other substance dependence ( with the exception of tobacco)
* Subjects with a history of brain injury or neurological diseases
* Denial for study participation
* Non-spanish speakers
* rTMS selected participants with be assed in order to discard epilepsy, presence for metallic elements and CNS valves
Minimum Eligible Age

18 Years

Maximum Eligible Age

50 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

Meet the organizations funding or collaborating on the study and learn about their roles.

Ministerio de Sanidad, Servicios Sociales e Igualdad

OTHER_GOV

Sponsor Role collaborator

Hospital Universitario 12 de Octubre

OTHER

Sponsor Role lead

Responsible Party

Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.

Gabriel Rubio Valladolid, MD

Psychiatrist, MD, PhD

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

Learn about the lead researchers overseeing the trial and their institutional affiliations.

Gabriel Rubio Valladolid, Psychiatrist

Role: PRINCIPAL_INVESTIGATOR

Hospital Universitario 12 de Octubre

Locations

Explore where the study is taking place and check the recruitment status at each participating site.

Hospital Universitario 12 de Octubre

Madrid, , Spain

Site Status

Countries

Review the countries where the study has at least one active or historical site.

Spain

References

Explore related publications, articles, or registry entries linked to this study.

Wiers RW, Eberl C, Rinck M, Becker ES, Lindenmeyer J. Retraining automatic action tendencies changes alcoholic patients' approach bias for alcohol and improves treatment outcome. Psychol Sci. 2011 Apr;22(4):490-7. doi: 10.1177/0956797611400615. Epub 2011 Mar 9.

Reference Type BACKGROUND
PMID: 21389338 (View on PubMed)

Mishra BR, Nizamie SH, Das B, Praharaj SK. Efficacy of repetitive transcranial magnetic stimulation in alcohol dependence: a sham-controlled study. Addiction. 2010 Jan;105(1):49-55. doi: 10.1111/j.1360-0443.2009.02777.x.

Reference Type BACKGROUND
PMID: 20078462 (View on PubMed)

Other Identifiers

Review additional registry numbers or institutional identifiers associated with this trial.

2015/099

Identifier Type: -

Identifier Source: org_study_id

More Related Trials

Additional clinical trials that may be relevant based on similarity analysis.

Glutamatergic Modulation of Disordered Alcohol Use
NCT02539511 COMPLETED PHASE2/PHASE3