Funded Projects

There are no FDA-approved medications for stimulant use disorders, and therapies for opioid use disorders remain suboptimal in ways that are now a focus of national attention. Thus, there is a clear need to identify new targets and explore new approaches for addiction medication development. Several lines of evidence suggest that PTPRD (receptor type protein tyrosine phosphatase D) may be a promising target for development of pharmacotherapeutics to treat not only stimulant use disorders but opioid use disorders as well. This research will focus on improving existing PTPRD ligands, identifying their effects on the dopamine and opioid systems, and moving the best novel, patentable PTPRD ligands toward human studies. If successful, this project will generate novel, well-tolerated, and bioavailable PTPRD ligands that display in vitro potency, selectivity and stability, and in vivo modulation of both cocaine and opioid-mediated reward at doses that present no significant toxicity.

Opioids like morphine and hydrocodone are generally the most effective therapeutics for treatment of moderate to severe pain. However, their use is limited by serious side effects: tolerance, constipation, respiratory depression, physical dependence, and high addictive potential. Alternative pain relievers with the analgesic potency of conventional opioids, but devoid of narcotic side effects, are an immediate need. The goal of this project is to develop and commercialize an alternative to conventional opioid analgesics with reduced side effects and without the addictive properties common to mu-opioid agonists, targeting a new molecule in the central nervous system. This project will perform the necessary preliminary studies to prepare this new molecule for an investigational new drug application with the FDA.

Despite increased efforts to understand the neurodevelopmental sequelae of in utero opioid and other substance exposure on long-term behavioral, cognitive, and societal outcomes, important questions remain, specifically, 1) How is brain growth disrupted by fetal substance and related pre- and post-natal exposures? and 2) How are these disrupted growth patterns causally related to later cognitive and behavioral outcomes? This project seeks to formulate an approach to addressing these key questions and decipher the individual and cumulative effect of these intertwined pre- and post-natal exposures on child neurodevelopment. First, researchers will address the legal, ethical, and mother-child care and support concerns implicit in this study. Next, they will integrate across our areas of neuroimaging expertise to develop, implement, and harmonize a multi-modal MRI and EEG protocol to assess maturing brain structure, function, and connectivity. Finally, researchers will develop and test advanced statistical approaches to model and analyze this multidimensional and longitudinal data.

Risk for opioid use disorder (OUD) often begins in adolescence and young adulthood. Engaging and retaining adolescents and young adults (collectively, “youth”) in early, effective treatment is critical for improving the life course trajectory of addiction. For adults with OUD, office-based opioid treatment (OBOT) with a collaborative care approach that includes behavioral therapy optimizes patient engagement and retention in care. Collaborative care OBOT is especially promising for youth, who can receive treatment from a trusted primary care provider in the same familiar setting they receive their usual medical care. To date, however, OBOT has not been formally adapted for treating youth. The central objective of this project is to develop and pilot an enhanced OBOT model for youth that is developmentally appropriate and family centered. The multidisciplinary nature of our team, which includes expertise in advanced biostatistical analysis, qualitative research, intervention development, developmental psychology, and implementation and improvement science, will maximize the chances of filling an important gap in the provision of youth specific evidence-based OUD interventions.

Understanding municipal policies that influence implementation of effective evidence-based practices (EBPs) as well as effective strategies for working with municipal groups may inform local efforts to translate EBPs. Just as important, engaging with local stakeholders may help to facilitate the long-term sustainability of EBPs. This can only occur if diverse local actors in municipal governance are thinking about health and behavioral health in the context of municipal planning and policy. Building from research related opioid use disorder and the risk environment, built environment, and zoning, this research will work to support coalition-based approach currently implemented by the HEALing Communities Study. The research aims to develop an understanding of local policies that may affect implementation of community action plans in the HEALing Communities Study Massachusetts communities.

Although there are effective prevention and treatment programs and services to address opioid misuse, opioid use disorder, and overdose, gaps remain between those needing and those receiving prevention and treatment. There is a need to better understand how to make these programs and services most effective at a local level, a problem being addressed by the HEALing Communities Study. This project supports a scientist from a group underrepresented in biomedicine to continue ongoing work to test the impact of an integrated set of evidence-based practices across health care, behavioral health, justice, and other community-based settings.

Often (around 40 percent of the time), individuals being treated for opioid use disorder (OUD) also have pain that interferes with daily life. This study builds on the prior development of a collaborative primary care approach, entitled TOPPS (Treating Opioid Patients’ Pain and Sadness), in which behavioral health specialists and primary care providers share a unified plan for addressing pain and depression in patients receiving buprenorphine. Building in preliminary work, researchers are conducting a randomized controlled trial of TOPPS compared to a health education contact-control condition among 250 persons with OUD recruited from two primary care-based buprenorphine programs, provided over 3 months and followed over 12 months. The study will examine whether this intervention changes how much pain interferes with daily functioning, the severity of pain, depression, and whether individuals stay in OUD treatment.

Current drug-screening immunoassays use benchtop analyzers that require experienced personnel, time, and a laboratory setup. Physicians without access to in-house testing have to send out patient samples for screening, resulting in unacceptable delays in the treatment of patients who are potentially suffering from chronic pain. This project, a partnership with BreviTest Technologies, LLC, aims to develop a low-cost, point-of-care (POC) urine drug testing (UDT) device to detect opioids. The goal is for a portable platform to deliver quantitative performance similar to a standard laboratory test for opioids within a 10-minute run time. If successful, this will provide a technology capable of performing rapid quantifications of urine drug levels in a physician’s office, providing an invaluable tool to render more effective pain management dosing to patients, thus paving the way toward lower toxicity and a better quality of life.

Over 30% of adults aged 65 years and older in the United States suffer from osteoarthritis (OA). Opioid analgesics are often used for patients with moderate to severe symptomatic OA. When non-pharmacologic and pharmacologic treatments are not effective, patients with severe OA may undergo total joint replacement (TJR). Our primary objectives are to evaluate patterns of opioid use before and after TJR and to assess the effect of opioid use patterns on clinical outcomes and safety events in a large U.S. population–based cohort of OA patients. The specific aims are to: 1) identify predictors of persistent opioid use and opioid dose escalation in patients after TJR for hip or knee OA and 2) evaluate effects of opioid use patterns on short- and long-term clinical outcomes and safety following TJR. The results of this study will provide guidance on surgical risk stratification and pain management of patients before and after TJR.

Individuals who have been previously incarcerated have a significantly higher risk of dying from opioid overdose, particularly in the first two weeks after release. Providing medication for opioid use disorder (MOUD) to individuals on probation or parole decreases the rate of relapse and recidivism, and increases retention in substance abuse treatment. This study will test a systems-change approach for increasing use of MOUD across a network of seven probation and parole sites to improve linkage to the continuum of evidence-based care for justice-involved individuals. Implementation outcomes include program acceptability, adoption, penetration, sustainability, and costs. Client-level effectiveness outcomes include retention, satisfaction, opioid use, opioid overdoses, recidivism, linkage to OUD treatment, and utilization of recovery services. Targeting the intersection of justice and community-based care has substantial potential for addressing the opioid crisis.

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.