Neuromodulation & Cognitive Training in Opioid Use Disorder

Status Recruiting

Clinical Trial Summary

The relapsing nature of opioid use disorder is a major obstacle to successful treatment. About 90% of those entering treatment will relapse within one year. To improve treatment outcome, new interventions targeting the underlying brain biomarkers of relapse vulnerability hold significant promise in reducing this critical public health problem. Transcranial direct current stimulation (tDCS) is a non-invasive brain stimulation technique that can modulate brain connectivity.

Clinical Trial Description

Cognitive flexibility, the ability to change maladaptive behavior, depends on dorsolateral prefrontal cortex (DLPFC) input to the nucleus accumbens (NAcc; Gruber, Hussain, and O'Donnell 2009). DLPFC stimulation may increase input to NAcc to facilitate proper selection of goal-directed behavior and may also decrease craving in individuals with substance use disorder (Boggio et al. 2008). We will use transcranial direct current stimulation (tDCS) to stimulate the DLPFC. TDCS is a non-invasive brain stimulation technique that can modulate brain connectivity. TDCS involves applying a weak electrical current (2mA or less) to the scalp via anodal and cathodal electrode sponges, causing either increases or decreases in cortical excitability, respectively. Research has shown in both healthy subjects and patients (e.g. Alzheimer's disease, Parkinson's disease, stroke, and depression) that tDCS has the potential to modulate synaptic strengthening and neurotransmitter-dependent plasticity underlying changes in behavior and learning (Lang et al. 2005). We are anticipating enrollment of 30 participants. Fifteen participants will be randomly assigned to the interventional tDCS condition, while 15 participants will be randomly assigned to sham tDCS. Both conditions will undergo five sessions of tDCS across five days. Participants will undergo pre- and post-tDCS MRI scans, in addition to clinical interviews and questionnaires. Follow-up interviews will be conducted in person 1 and 2 months after intervention completion to inquire about relapse status. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT03773523
Study type	Interventional
Source	University of Minnesota
Contact	Jazmin Y Camchong, PhD
Phone	(612) 624-0134
Email	camch002@umn.edu
Status	Recruiting
Phase	N/A
Start date	August 1, 2019
Completion date	May 15, 2025

View Details

See also
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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

Neuromodulation and Cognitive Training in Opioid Use Disorder

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms