Funded Projects

Four out of five youth in the juvenile justice (JJ) system show evidence of being under the influence during their offenses, and more than half test positive for substances at the time of their arrest. Preventive intervention approaches that can be easily implemented within JJ settings may offer greater access to substance use care as well as increase families’ motivation to comply with court referrals to seek further services. It is especially important to evaluate interventions for court-involved, non-incarcerated (CINI) juveniles, as these youth account for two-thirds of those arrested; however, the bulk of extant research has been conducted with detained or incarcerated youth. In this application for supplemental funding, we capitalize on our parent grant (Brief Individual and Parent Interventions for Marijuana Misuse in Truant Adolescents) by proposing to develop an adjunctive, targeted preventive intervention for marijuana-using, JJ youth who are at elevated risk for illicit opioid use. The goal will be to develop a protocol for a single-session, parent-adolescent preventive intervention to decrease the likelihood of illicit opioid use in CINI adolescents. This formative work will culminate in a draft intervention manual.

Neurostimulation techniques, such as transcranial direct current stimulation (tDCS), have been used as interventions for substance use disorders. This is a supplement to the currently NIDA-funded UG3 DA047793, “tDCS to Decrease Opioid Relapse,” which will measure behavioral and brain responses following tDCS stimulation delivered during tasks that use a particular brain network involved in cognitive control, and utilizing FMRI to assess the effects. This supplement allows the researchers to add an EEG measurement to the study, to get a complete picture of how tDCS might affect the function of key brain networks in ways that could be helpful for SUDs.

Office-based opioid treatment (OBOT) with buprenorphine/naloxone prevents overdose deaths. Nonpharmacologic approaches to anxiety, stress, and emotion dysregulation are needed during primary care OBOT, which is the primary access point for opioid use disorder (OUD) treatment in most U.S. counties. Mindfulness-based interventions (MBI) safely and reliably reduce the impact of stress, anxiety, depression, and chronic pain, which could increase OBOT retention while reducing rates of relapse and overdose deaths. Current 8-week standard MBIs do not appear to have strong, sustained impact on substance use outcomes, suggesting longer or enhanced MBIs are needed in the OUD treatment setting. This project proposes to adapt, refine, and compare the effectiveness of the 6-month Mindful Recovery OUD Care Continuum delivered within group-based opioid treatment (GBOT) versus standard GBOT alone.

Exercise could repair structural and functional brain changes caused by opioid use disorder (OUD) and chronic pain by increasing growth and brain-derived neurotrophic factors and promote decreased substance cravings, reduced depression and anxiety, and increased analgesic effects that improve chronic pain. The team’s previous work with Parkinson’s disease and stroke patients showed that “assisted” exercise on a stationary cycle improved motor function and increased dopamine levels. The team also developed a novel self-regulation/cognitive behavioral therapy (CBT) program that co-addresses opioid addiction and pain (STOP) and improves pain tolerance, cravings, and functional engagement in daily activities. This study will take a multiphase optimization strategy approach to refining intervention protocols, testing feasibility, and evaluating the effects of exercise and STOP as adjunctive treatments to medication-assisted treatment (MAT) in adults with an OUD and chronic pain enrolled in residential treatment programs to decrease drug cravings and pain and increase adherence to MAT.

Among the more than half-million adults entering addiction treatment for prescription opioid abuse every year, 50%-60% report co-morbid chronic pain, and 80% report that pain triggers relapse. Individualized/self-stigma among adults with substance abuse has been shown to lead to delayed recovery, increased relapse and reduced treatment-related attendance. Stigma may induce significant burden on patients with OUD and chronic pain and there may be unique characteristics of stigma for this population due to the overlap between medical treatment and substance abuse. Multiple sources of stigma may be imposed including internalized/self-stigma as well as intragroup/peer-to-peer (?horizontal?) stigma whereby peers impose stigma upon each other based on the type and severity of past drug use. Furthermore, stigma could be ?vertical? in that stigma may be enacted by health care providers or by treatment center staff. However, there is notably a lack of research and related assessment tools to measure these multidimensional facets of stigma, particularly in patients with OUD and chronic pain. The investigators will utilize a mixed-methods approach to evaluate internalized/self-stigma, anticipated/expected stigma and enacted stigma using existing standardized surveys, and to describe horizontal and vertical stigma in individuals with OUD and pain at multiple sites. In addition, the investigators will integrate the quantitative and qualitative information to help inform modifications to the psychotherapy component (I-STOP) of the parent award intervention, which would then also target multidimensional stigma in patients with OUD and chronic pain.

Prevalence rates of opioids misuse in Los Angeles County (LA) are particularly high among individuals of childbearing age and in already-vulnerable populations including African American females. These data highlight a pressing need for a systematic study of the effects of prenatal drug exposures (PDE) in the unique sociodemographic LA County area. In this project, researchers aim to establish the feasibility for the large-scale Phase II HEALthy BCD study in the Los Angeles area with three specific aims: (1) build a broad interdisciplinary team of investigators capable of a multi-faceted study of brain and behavioral development in both typically developing and at-risk infants/children; (2) establish a set of highly executable recruitment and retention strategies for both drug-free and drug-exposed infants/children; and (3)establish comprehensive study protocols that will help address the three key research objectives of the Phase II study.

Therapeutic virtual reality (VR) has emerged as a promising and evidence-based treatment modality for musculoskeletal pain, including chronic low back pain (cLBP). Users of VR wear a pair of goggles with a close-proximity stereoscopic screen that creates a sensation of being transported into lifelike, three-dimensional worlds. By stimulating the visual cortex while engaging other senses, VR modulates the user’s processing of nociceptive stimuli. Functional magnetic resonance imaging (fMRI) of the brain reveals that VR has similar effects on the sensory and insular cortex as opioids, and head-to-head trials show that VR achieves similar or greater analgesia as hydromorphone. Since there are few data regarding long-term efficacy and safety of VR in cLBP, this study will measure patient-reported outcomes, biometric outcomes, and opioid use in nonspecific cLBP patients under various experimental conditions using VR therapy.

Digital health interventions, such as virtual reality (VR) applications, have become available for the treatment and monitoring of numerous health conditions, including pain management. A current HEAL-funded study is evaluating the role of a therapeutic VR approach for chronic low back pain. However, racial and ethnic disparities exist in patient access and response to such VR applications, as well as in the incidence and reporting of pain. For example, non-Hispanic Blacks and Hispanics are more likely to report severe pain than non-Hispanic Whites, yet are less likely to have access to digital health information and interventions. To address these disparities, this project will develop a framework to advance diversity and inclusion in digital health trials and will seek to increase the proportion of non-Hispanic Black and Hispanic participants in the ongoing VR trial by tailoring recruitment materials and using novel artificial intelligence-driven cohort building tools.

This project addresses the significant challenge of providing evidence-based, non-pharmacologic pain management to veterans with chronic pain living in rural regions. This research will test whether an innovative, virtual complementary and integrative group-based treatment will improve rural veterans’ pain management, function, and well-being. The research will also devise, evaluate, and adapt strategies for implementing this intervention while working with the health care system, veteran patients, and communities. The scalable, 12-week intervention includes pain education, mindfulness, pain-specific exercises, and cognitive behavioral strategies.

Kappa opioid receptors (KOR) are expressed in brain areas that control reward, motivation, and anxiety. Upon opioid drug withdrawal and abstinence, dysregulated KOR signaling can result in aversive physical and affective states that are a major driver of relapse. Preclinical data have demonstrated that antagonism of KOR can reduce the physical symptoms of opioid withdrawal. Currently, the alpha 2-adrenergic agonist lofexidine is the only approved therapy for the mitigation of the physical symptoms of opioid withdrawal but it is only modestly effective and can have significant unwanted side effects. Cerevel Therapeutics has identified a novel selective KOR antagonist, CVL-354, with unique properties and good preclinical safety margins. This project will assess this drug in early human safety/pharmacokinetics and occupancy studies. Future studies will then be able to assess efficacy of this drug in acute opioid withdrawal.

Young adults (18 to 26) with a substance use problem have the highest rates of polysubstance use among all age groups. At the same time, individuals in this age group (especially in rural areas) are generally lacking in recovery capital: resources to help them recover from substance use, such as vocational or educational skills. This project will assess the feasibility and acceptability of “Launch,” which uses parental and peer recovery support to increase recovery capital for young adults with polysubstance use. The intervention will use coaching as well as contingency management, a treatment approach in which individuals receive tangible rewards as incentives for desired behaviors such as abstinence. If successful, the findings will inform a future large-scale trial assessing the effectiveness of this approach.

Less than half of youth in the juvenile justice system who meet the criteria for substance use disorders (SUD) have ever received treatment, and less than one third of those received treatment while under community or correctional supervision. SUDs during adolescence can lead to significantly longer periods of substance use, more severe offending, and penetration in the justice system. The Translational Research on Interventions for Adolescents in the Legal System (TRIALS) cooperative is intended to develop and test implementation strategies and associated measures to improve the continuum of substance abuse and HIV prevention and treatment services delivered to youth under juvenile justice supervision.