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.

A more than 5-fold increase in the incidence of neonatal abstinence syndrome has been reported since 2000. Preliminary studies show that prenatal opioid exposure is associated with increased risk of impaired neurodevelopment. Five institutions (Duke University, Arkansas Children’s Research Institute, Cincinnati Children’s Hospital, University of Illinois at Urbana–Champaign, and University of North Carolina at Chapel Hill) have formed a consortium to develop strategies for the Phase II HEALthy Brain and Child Development Study. Research teams will develop instruments and strategies (recruitment/retention protocols, assessment batteries, and novel tools); conduct pilot studies (fetal and postnatal imaging, advanced imaging harmonization and quality control, assessment administration, biosampling) to evaluate instruments; and analyze available data, including imaging, behavioral, cognitive, and maternal data from studies on early brain development, to guide the Phase II study design. Upon completion, the consortium aims to conduct the Phase II study.

Although there are effective prevention and treatment programs and services to address opioid misuse, opioid use disorder (OUD), and overdose, gaps remain between those needing and those receiving prevention and treatment, in part because of a need to better understand how to make these programs and services most effective at a local level. The National Institutes of Health (NIH) and the Substance Abuse and Mental Health Services Administration (SAMHSA) launched the HEALing Communities Study to generate evidence about how tools for preventing and treating opioid misuse and OUD are most effective at the local level. This multisite implementation research study will test the impact of an integrated set of evidence-based practices across health care, behavioral health, justice, and other community-based settings. The goal of the study is to reduce opioid-related overdose deaths by 40 percent over three years. The University of Kentucky is partnering with academic institutions in three other states to study the impact of these efforts in 67 highly affected communities. The study will also look at the effectiveness of coordinated systems of care designed to increase the number of individuals receiving medication to treat OUD, increase the distribution of naloxone, and reduce high-risk opioid prescribing.

Although there are effective prevention and treatment programs and services to address opioid misuse, opioid use disorder (OUD), and overdose, gaps remain between those needing and those receiving prevention and treatment, in part because of a need to better understand how to make these programs and services most effective at a local level. The National Institutes of Health (NIH) and the Substance Abuse and Mental Health Services Administration (SAMHSA) launched the HEALing Communities Study to generate evidence about how tools for preventing and treating opioid misuse and OUD are most effective at the local level. This multisite implementation research study will test the impact of an integrated set of evidence-based practices across health care, behavioral health, justice, and other community-based settings. The goal of the study is to reduce opioid-related overdose deaths by 40 percent over three years. As the Data Coordinating Center, RTI will provide coordination and facilitate communications to unite the HEALing Communities Study research centers into a cohesive research cooperative.

There is a need to develop a mu-opioid receptor (MOR) treatment with enhanced therapeutic effects and reduced undesirable effects. Recently, several highly selective and potent MOR modulators have been identified as novel leads for opioid use disorder treatment. They all showed more promising pharmacological profiles compared to other known drugs in this category. The current proposal will focus on further development of these leads for preclinical IND-enabling studies and dynamic drug discovery and development pipeline construction. This project plans to further validate therapeutic profiles of the current leads with self-administration and pharmacokinetic studies and expand the small-molecule library to build a dynamic drug discovery and development pipeline. Preclinical IND-enabling studies on the identified lead(s) will be conducted, and in vivo pharmacokinetics and pharmacodynamics profiles of the new hits will be compared with current leads to define the next generation of lead compound(s).

There is a significant treatment gap between patients diagnosed with OUD and those who seek treatment, and only a small proportion of those seeking treatment receive MOUD. Primary care is the most common point of health care contact in the U.S. and is an important venue to address stigma, improve access to treatment and improve quality of care. Over the past decade, electronic health record (EHR)-linked Web-based point-of-care clinical decision support (CDS) systems designed to improve quality of chronic disease care have become increasingly sophisticated and successful. A Web-based and EHR-integrated OUD CDS system to offer expert guidance to primary care providers (PCPs) on the diagnosis and management of OUD was developed and piloted. This project will implement the OUD clinical decision support system in three large diverse health care systems and randomize a minimum of 30 clinics to receive the OUD-CDS intervention or usual care (UC). The project will evaluate the impact of OUD CDS on practice process measures and patient outcomes. The study will also prepare for scalability and dissemination by evaluating facilitators and barriers to implementation, determining the costs of implementation and maintenance and assessing the short-term cost impacts of the OUD-CDS.

The emergency department (ED) is an ideal venue to reach and intervene with adolescents and young adults (ages 16-30) at risk for opioid misuse, particularly as young adults may disconnect from primary care when transitioning out of pediatric medicine. This study will evaluate the efficacy of interventions of varying type/intensity to prevent/reduce opioid misuse or opioid use disorder (OUD). The research leverages technology that is appealing to youth to facilitate intervention delivery by health coaches. In this study, adolescents and young adults in the ED screening positive for opioid use or misuse will be randomly assigned to one of four intervention conditions with outcomes measured at 4, 8, and 12 months. Technology-driven, scalable interventions delivered via health coach allow for real-time tailoring to the rapidly changing opioid epidemic, with the potential for a sustainable impact on preventing escalation of opioid misuse among adolescents and young adults.

This study seeks to address the priority of the optimal duration of buprenorphine treatment to reduce the risk of relapse, overdose and mortality outcomes using observational data. Answering this question with a randomized trial raises ethical concerns. Observational studies with large datasets can address these important questions relatively quickly. At the same time, observational studies pose their own methodologic challenges related to confounding, misclassification of exposure and outcome, and informative loss to follow-up. This study will identify and quantify the potential for these sources of bias and then conduct analyses to address the questions of interest (risk of relapse, overdose and mortality).

To address the need for novel therapeutics for opioid use disorder (OUD), this research group identified ghrelin as an endogenous regulator of the mesocorticostriatal circuit, which contributes to the enhanced motivational attributes of addictive drugs and drug-associated cues. Ghrelin binds to the growth hormone secretagogue receptor 1? (GHS1?R) to transduce several physiological and behavioral processes, including the reward-related effects of opioid agonists. Systemic administration of a GHS1?R antagonist/inverse agonist dose-dependently attenuated self-administration of the addictive opioid analgesic oxycodone as well as oxycodone-seeking. This project proposes to employ a suite of validated rodent OUD models to define the preclinical profile for PF5190457, a selective GHS1?R antagonist/inverse agonist. PF5190457’s abuse liability, ability to suppress withdrawal and relapse-like behaviors, drug metabolism and pharmacokinetics, and brain penetrability in rats will be assessed. Phase 1 clinical studies in non–treatment seeking OUD participants will follow to assess the safety and tolerability of PF5190457.

Given the severity of the current opioid crisis, there is a pressing need to maximize the effectiveness of our interventions and increase retention in medication for opioid use disorder (MOUD) treatment. Measurement-based care (MBC), in which patient progress is regularly and systematically assessed to aid in treatment decisions, is a promising approach. Assessment tools are needed that can be administered quickly and that yield information that can be used to suggest improvements in treatment. In this study, the Investigator will conduct a series of analyses with data from the Brief Addiction Monitor (BAM), which has been selected for a national MBC initiative within the Veterans Administration. The goal of the work will be to derive and validate two new scales from the BAM. One scale is intended for use in opioid use disorder (OUD) specialty care programs. The second version is intended for use in primary care–based MOUD.

Justice-involved veterans have lower access to opioid use disorder (OUD) pharmacotherapy and need an effective transition from the justice system to the Department of Veterans Affairs (VA) and community health care systems to improve drug addiction treatment and outcomes. We will quantitatively evaluate patient and facility characteristics associated with differences in receipt of OUD pharmacotherapy among justice-involved veterans compared with non-justice-involved veterans and within-facility changes over time; qualitatively identify drivers of higher or lower access to OUD pharmacotherapy among justice-involved veterans compared with other veterans with OUD at the same facility; evaluate stakeholders’ perceptions of factors that explain within-facility changes in access to OUD pharmacotherapy over time; and develop and conduct a formative evaluation of implementation strategies to improve access to OUD pharmacotherapy. Results will be used to design and select implementation strategies that address identified barriers to improve access to OUD pharmacotherapy for justice-involved veterans.

A large number of individuals under criminal justice supervision with opioid use disorders (OUDs) have limited access to pharmacotherapy treatment, an intervention found to reduce substance use, HIV-risk behavior, and criminal activity. This randomized clinical trial will assess the effectiveness of an extended-release buprenorphine (XR-B) formulation compared to extended-release naltrexone (XR-NTX) in county jail inmates prior to release. Understanding how to expand acceptance of medications for OUD, particularly long-acting medications, in jails has far-reaching implications for treatment expansion in this population.

The overarching goal of the Greater Southern California Node (GSCN) of the National Drug Abuse Treatment Clinical Trials Network (CTN) is to expand access to and improve outcomes of treatments for substance use disorders (SUDs)—with a special emphasis on opioid use disorder (OUD). The specific aims of GSCN include the development of new research protocols, support of multi-site CTN projects, and dissemination of research findings. The GSCN research agenda includes four priority areas: (1) developing and testing effective interventions for OUD and related comorbidities, (2) applying implementation science to deliver and expand OUD treatment, (3) leveraging electronic health record systems and data science generation of innovative approaches to improve treatment for OUD, and (4) expanding OUD treatment access and utilization through mHealth and other technologies. The GSCN research agenda reflects its capacity to collaboratively expand CTN efforts to develop and implement innovative approaches to improve treatment for OUD.