Funded Projects

The project will address gaps in both risk identification and clinical management by utilizing comprehensive clinical data from a mature health information exchange containing more than 2.3 million patients across the spectrum of clinical care (hospitals, primary care, specialty care, community health centers, urgent care) to develop a statistically robust method to measure suicide risk associated with prescription opioid use. First, the team will couple data fusion techniques with machine learning-based approaches in identifying the clinical and demographic characteristics associated with elevated risk of suicidal behavior among prescription opioid users. Second, the team will develop clinical profiles of patients with higher risk of suicidal behavior associated with prescription opioids, and to incorporate these profiles in a clinical decision support platform that can be used for identification and intervention at the point of care. The clinical decision support tool developed under this proposal will provide a generalizable platform that could be extended to other more conventional opioid related outcomes such as OUD and overdose.

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.

Neonatal opioid withdrawal syndrome (NOWS) has emerged as a tragic by-product of the opioid epidemic. Newborns whose mothers used opioids while pregnant can experience symptoms of opioid withdrawal in the days following birth, such as tremors, irritability, seizures, sleep, digestive, and feeding problems. However, little is known about the effect of antenatal opioid exposure on longer-term infant development over time. To address this gap in understanding, the ACT NOW Longitudinal study is examining a crucial developmental period from birth to two years of life through a comprehensive battery of assessments, including MRI imaging, neurodevelopmental behavioral assessments, and family report measures. This longitudinal cohort study is projected to include a total of 375 infants, 250 who were exposed to opioids and 125 matched controls.

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.

The Great Lakes Node (GLN) of the NIDA-supported Drug Abuse Clinical Trials Network (CTN) will serve as a vital Midwestern hub for the CTN and expand on the success of the CTN approach. The GLN aims include (1) identify substance misuse research and intervention protocols focused on systems-based practice; (2) establish a digital and computation health core for studies in mHealth, eHealth, artificial intelligence, natural language processing, and telehealth interventions; (3) bring substantial expertise with youth/adolescent health and seniors/aging to examine prevention strategies to mitigate these life-course pathways; (4) support work on opioid misuse that focuses on health disparities, including socioeconomic, geographic, sexual orientation, and gender identity; (5) leverage experience in professional education and practice-based learning to test the impact of professional education on opioid and substance use treatment; and (6) expand the pipeline of early investigators interested in substance misuse research.