View clinical trials related to Substance-Related Disorders.
Filter by:OBJECTIVES: The current protocol seeks to develop brain-based intermediate phenotypes of response to transcranial magnetic stimulation (TMS) in chronic substance use disorder (SUD). To date the field has relied on subjective reports, behavioral performance, and long-term clinical outcomes as primary measures of TMS efficacy. While certainly ecologically valid, these observable behaviors lack the sensitivity necessary to fully quantify the effects (or lack thereof) across both individual participants and TMS intervention protocols. This proposed within-subjects design seeks to leverage differences in metaplasticity that is, the context in which stimulation occurs-by studying the response to stimulation in both sated and abstinent states. It is predicted these state manipulations will potentiate response to TMS. When a disruptive allostatic load like chronic nicotine exposure or acute abstinence is placed on the brain, the underlying network becomes less stable and thus more susceptible to TMS intervention. For SUD in general and tobacco use disorder (TUD) in particular, this state dependence of TMS response is a potentially valuable tool to improve a given intervention s clinical efficacy. STUDY POPULATION: Physically and psychiatrically healthy smokers will be recruited. A comparison group of non-smokers will be concurrently enrolled. We estimate we will require n=51/group of completers to have sufficient power to develop the intermediate phenotypes of TMS. DESIGN: The protocol is a two group, between/within subject, fully counterbalanced design. The between-subjects factor is GROUP (smoker/non-smoker) and the within-subjects factor for each GROUP is TMS CONDITION (active/sham). Additionally, and for the smoker group, nicotine STATE (sated/abstinent) is a nested within-subjects factor. Each group will receive single sessions of active and sham intermittent theta burst stimulation to left dorsal lateral prefrontal cortex, followed immediately by an MRI scan to characterize the acute neurobiological response to stimulation. Smokers will repeat these procedures both during smoking satiety and following an ~48-hour period nicotine abstinence. OUTCOMES PARAMETERS: In addition to subjective and behavioral task performance changes associated with TMS intervention, changes in MRI BOLD signal will be used to characterize the neurobiological response to TMS intervention across groups and states. Taken together, the development of brain-based markers of TMS response may thus improve both our mechanistic understanding of the causal dysfunctions of TUD as well as the potential efficacy of these interventions longer term to address the relevant clinical characteristics of the disease and ultimately improve treatment outcomes.
The aim of this study is to investigate the effects of transcranial magnetic stimulation (TMS) on craving in individuals treated with buprenorphine for opioid use disorder. In this study, individuals will receive 10 sessions of TMS (twice daily for 5 days). The investigators will assess craving, substance use, and mood throughout the study and 1-2 weeks post-treatment.
The purpose of this study is to determine efficacy and effect of CVS (caloric vestibular stimulation)
This pilot study seeks to determine if exposure to the Make the Connection campaign messages developed by the U.S. Department of Veterans Affairs (VA) is associated with changes in mental-health related outcomes, specifically: (1) psychosocial determinants that drive help seeking behaviors (knowledge, attitudes and intentions); and (2) perceived barriers to seeking care. Participants are randomly assigned to message exposure or control (no exposure) conditions. Data from this project will inform mental health education and outreach efforts targeted towards Veterans experiencing mental health concerns.
Following the retrospective study on the effectiveness of the microdose method of intrathecal morphine therapy, the investigators are interested in measuring the sensory changes at 4 time points during the microdose method. The microdose method involves weaning the patient off oral opioids and maintaining an opioid-free period prior to initiating a very low opioid dose in intrathecal therapy. The microdose method is a standard of care. The study involves measuring sensory changes to hot, cold, and pressure. Data collection will be performed at regularly scheduled clinic visits, examining range of doses, pain scores,dose escalations, quantifiable psychosocial factors ( not captured in previous retrospective study), and changes in sensory thresholds.
The study tests a structured referral process for opioid overdose survivors, from pre-hospital emergency care to long-term treatment of the individual's substance use-related disorder.
This study evaluates the effectiveness of integrating empirically-supported treatments for an opioid use disorder into a primary care setting. These treatments will include ASAM Criteria multidimensional assessment, cognitive behavioral therapy and relapse prevention with contingency management, medication-assisted treatment, and recovery support services. Half of participants will be assigned to opioid use disorder treatment in a federally qualified health center, and half will receive treatment at a publicly-funded intensive outpatient addiction treatment program which has the ability to offer medication-assisted treatment.
This phase II pilot study aims at evaluating the benefits and the risks of methylphenidate (Concerta®) for the treatment of cocaine/crack dependence in terms of cocaine/crack use reduction and adverse events.
The purpose of this study is to develop and test a social media-based (Facebook) intervention that provides support and skills to parents with adolescent children in treatment for substance abuse. The Facebook intervention, PURPOSE, will be 8 weeks long and led by other parents (peer leaders). Peer leaders will go through 2 2-3-hour training sessions and be assessed at the end to confirm their understanding of study protocol and procedures. The study PI will lead 2 short (2-weeks) trial tests of various segments of the intervention to test out content and procedures. Then, a pilot trial with 80 parents, 40 randomized to PURPOSE and 40 randomized to treatment as usual (TAU), will be done to test how useful PURPOSE can be in promoting parents' engagement in their child's treatment and recovery while reducing their own distress and feelings of shame/stigma. Parents will do a phone interview at the start of PURPOSE and again at the end of the 8 weeks.
The goal of this project is to test the efficacy of a computer-facilitated Screening and Brief Intervention system adapted for Military use (cSBI-M) in reducing substance use among 18- to 25-yr-old U.S. Navy and U.S. Marine Corps personnel (USN/USMCs). The aims and hypotheses of this project are to: 1)Test the effects of cSBI-M on any alcohol use. Hypothesis: Among 18- to 25-yr-old USN/USMCs coming for routine health screenings, those receiving cSBI-M will have lower rates of any alcohol use at follow-ups compared to TAU. 2) Test the effects of cSBI-M separately as a preventive, early therapeutic, and risk-reduction intervention. Hypotheses: (a) Among 18- to 25-yr-old non-drinking USN/USMCs (negative history of past-12-months drinking at baseline), those receiving cSBI-M will have lower rates of drinking initiation and heavy episodic drinking (HED, a.k.a. "binge" drinking). (b) Among 18- to 25-yr-old drinking USN/USMCs, those receiving cSBI-M will have higher rates of drinking cessation, reduced intensity of drinking (e.g., past-3-months drinking days, HED, and driving after drinking or riding with a drinking driver.(3) Test the effects of cSBI-M on tobacco use; explore its effects on other drug use. (4) Assess potential moderators (e.g., age, gender, race/ethnicity, substance use history +/-, parent/sibling/peer substance use), mediators (e.g., Patient to Provider Connectedness,17 perceived harmfulness of alcohol and drug use), and explore cSBI-M's mechanism of action. Hypotheses: among 12- to 18-yr-old patients coming for routine care, those receiving c-ASBI will have 1) lower rates of any alcohol use, of drinking initiation and riding with a driver who has been drinking, and 2) higher rates of drinking cessation, reduced intensity of drinking, heavy episodic drinking and driving after drinking or riding with a driver who has been drinking.