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Clinical Trial Summary

The goal of this double-blind sham controlled study is to evaluate the effeicacy of continuous theta burst stimulation to the frontal pole as a tool to decrease drug cue reactivity and improve treatment outcomes in treatment-engaged cocaine and alcohol users. All participants will be randomized to receive 10 days of real or sham rTMS to the frontal pole. Brain imaging data and behavioral assessments will be collected at 4 time points - before TMS, after 10 days of TMS, 1 month follow up and 2 month follow up.

Clinical Trial Description

Cocaine dependence is a particularly difficult substance use disorder to treat. There is currently a lot of scientific inertia focused on the development of novel, neural circuit based strategies for intervention. A prior NARC funded pilot project in non-treatment seeking cocaine users demonstrated that a single session of medial prefrontal cortex theta burst stimulation (MPFC cTBS) decreases baseline frontal-striatal activity in limbic regions and decreases neural responses to cocaine uses. The effects of a single session however, erode over the first few hours after treatment. Sustainable effects require multiple days of treatment. GOAL: The next steps in pursuing this as a novel treatment are to 1) apply it to treatment-engaged patients and 2) determine whether several sessions of cTBS will produce sustainable and clinically-meaningful changes in cocaine use among these patients.

DESIGN: Treatment-engaged cocaine users and heavy alcohol users will be randomized to receive 10 sessions of real or sham LTD-like MPFC cTBS. This will be achieved by leveraging our existing partnership with the MUSC Center for Drug and Alcohol Programs (CDAP) and the Veterans Administration Substance Abuse Treatment Center Program (SATC) - which both provide a 4 week intensive outpatient treatment program. MPFC cTBS will be given during weeks 2 and 3 of the program. Functional MRI data and clinical assessments will be acquired during weeks 1, 4, and at participant's 1 month and 2 month Accountability/Continuity visits. Hypothesis: real cTBS treatment will enhance clinical outcomes (Aim 1 - including retention rates, number of clean urine drug screens during CDAP treatment, relapse rates at 1 and 2 months) and will produce a sustainable decrease in neural reactivity to cocaine cues (Aim 2 - week 1 versus week 4, 1 month & 2 month follow ups). ;

Study Design

Related Conditions & MeSH terms

NCT number NCT03238859
Study type Interventional
Source Medical University of South Carolina
Contact Colleen A Hanlon, PhD
Phone 843-792-5732
Status Recruiting
Phase Phase 2
Start date August 1, 2016
Completion date July 1, 2019

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