Funded Projects

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.

The HEALthy Brain and Child Development National Consortium (HBCD-NC) will establish a normative template of developmental trajectories over the first 10 years of life. All sites in the HBCD-NC will carry out a common research protocol and will assemble and distribute a comprehensive and well curated research dataset to the scientific community at large. The HBCD-NC will collect neural, behavioral, physiological, and psychological measures, as well as biospecimens, to characterize neurodevelopmental trajectories. The majority of participants will be recruited in the second trimester of pregnancy, with a smaller subset recruited at birth, and followed for the first decade of life. The University of Vermont study site will recruit mother-infant dyads from a rural area in Vermont, a state in which nearly one-third of neonatal hospitalizations are for neonatal abstinence syndrome (NAS).

Opioid use during pregnancy is associated with adverse outcomes for pregnant individuals and offspring. The mechanisms through which these outcomes arise and the consequences of prenatal opioid exposure on child health and development remain largely unexplored. The HEALthy Brain and Child Development (HBCD) Study is a nationwide longitudinal prospective study of early child development that will assess a broad spectrum of biological, behavioral, social, and health factors among 7,500 pregnant women and their children from pregnancy to mid-childhood. This supplement will expand the biospecimen collection of the HBCD protocol at the University of North Carolina at Chapel Hill to include delivery specimens (placenta, cord tissue, and cord blood). This will provide an unprecedented resource-generating opportunity for the larger scientific community to comprehensively evaluate mechanisms that mediate the connection between substance use during pregnancy and adverse neonatal, infant, and/or maternal health outcomes and inform innovative preventive strategies. 

Adolescents face increased HIV risk, infrequent testing, inconsistent linkage to care, and a lack of prevention-related knowledge. We propose to complete and evaluate the Mobile Augmented Screening (MAS) tool to privately and discretely offer routine HIV testing and counseling, including prevention education, to high-need, diverse adolescent and young adult populations at a low cost. The MAS will consist of a tablet-based intervention including a brief video designed to increase adolescent HIV testing, automated text messages to facilitate linkage to care for those who test positive, and text-based education for those who test negative or decline testing. Phase I was conducted with young emergency department (ED) patients. Preliminary evaluations indicate the video led to significant knowledge increases and encouraged testing. In phase II, we seek to complete intervention development and evaluate through a randomized controlled trial with ED patients, with qualitative interviews for a subset of young patients and ED staff.

For many individuals in recovery from a substance use disorder, certain cues—including stress and drug-related cues—can trigger a physiological state in which they are more likely to relapse. In this SBIR project, the investigators intend to deploy a system—consisting of a wearable sensor, a smartphone app, and a clinical portal—to provide individuals in recovery and their treatment providers with an opportunity to identify moments of high risk for relapse and to access real-time intervention opportunities. The sensors will identify signals of stress or drug use, interface with a smartphone app, and provide options for annotations, stress-reduction techniques, or contact with an individual’s support system and treatment providers, as well as log and encourage healthy behaviors. This study will deploy and optimize the system, as well as test its effects on addiction-related outcomes, such as rate of relapse.

We propose to develop a safe and effective nonopioid analgesic to treat neuropathic pain that targets an isoform of the voltage-gated sodium ion channel, NaV1.7. Voltage-gated sodium channels are involved in the transmission of nociceptive signals from their site of origin in the peripheral terminals of DRG neurons to the synaptic terminals in the dorsal horn. NaV1.7 is the most abundant tetrodotoxin-sensitive sodium channel in small diameter myelinated and unmyelinated afferents, where it has been shown to modulate excitability and set the threshold for action potentials. Development of systemic NaV1.7 inhibitors has been complicated by the challenge of achieving selectivity over other NaV isoforms expressed throughout the body. We have discovered a series of potent, state-independent NaV1.7 inhibitors that exhibit >1000-fold selectivity over other human isoforms. Work conducted under this program will support advancement of a lead candidate into clinical development as a therapeutic for neuropathic pain.

Rheumatoid arthritis is an autoimmune disease characterized by episodes of joint inflammation and pain. There are currently no safe and effective treatments that achieve long-term remission of the condition or the associated pain. Many patients use opioid medications to manage the pain and are at increased risk of developing opioid use disorder; therefore, additional treatment options are needed. In rheumatoid arthritis, pain-triggering sensory neurons interact with immune cells in the joints. This project aims to dissect the neuroimmune crosstalk underlying pain and inflammation in arthritic joints and uncover novel therapeutic avenues for this painful condition.

The objective of the Early Phase Pain Investigation Clinical Network (EPPIC-Net) and EPPIC- Net initiatives is to rapidly and efficiently translate advances in the neurobiology of pain into treatments for people with chronic and acute pain, conditions associated with a significant burden to both patients and society. The Clinical Coordinating Center (CCC) for EPPIC-Net will promote and facilitate, from initial conception through final analysis, clinical trials in adult and pediatric populations with acute or chronic pain by providing efficient methodological, organizational, and logistical support. The EPPIC-Net-CCC will adopt and establish processes aimed at dramatically increasing the efficiency of multicenter clinical trials, improving the overall quality of clinical trials, promoting patient recruitment and retention as well as increasing the number of clinical investigators and research staff well trained and passionate about leading and conducting multicenter clinical trials.

Buprenorphine is used for treatment of opioid use disorder (OUD), and patients often take it for many years by slowly dissolving it in the mouth. In 2022, the U.S. Food and Drug Administration warned about possible oral complications from buprenorphine use, including tooth decay, oral infections, and tooth loss. However, this warning was largely based on small studies with no comparison group and no assessment of other risk factors such as limited dental care. This project will follow two groups of individuals with OUD who take either sublingual buprenorphine or methadone, to compare their oral health and understand barriers and facilitators of dental care. The results will be used to plan an intervention for preventing and treating oral diseases in this patient group.

Low back pain (LBP) is one of the most common reasons for all physician visits in the U.S. The financial costs associated with the care of LBP are staggering. The treatments for chronic low back pain (cLBP) are far from satisfactory, and opioids are often prescribed with varying degrees of success. This study builds on prior work suggesting that auricular transcutaneous vagus nerve stimulation (tVNS), a non-invasive therapeutic, can significantly reduce symptoms of chronic pain and common comorbidities of chronic pain, such as depression and anxiety. This proposal aims to investigate the treatment effect and underlying mechanism of tVNS on chronic low back pain. Patients with chronic low back pain will be randomized to either real or sham tVNS treatment for 1 month, with a 3-month follow-up. This study, if successful, could provide new treatment options for chronic low back pain and reduce the use of opioid analgesics in chronic pain management.

Recent studies have reported that neuropathic pain involves changes in the central nervous system that are linked to necroptosis (programmed necrotic cell death) and release of cellular components that create neuroinflammation. Necroptosis is a type of necrotic cell death affected by the protein receptor-interacting serine/threonine-protein kinase 1 (RIPK1 or RIP1). Preliminary studies also indicate that pain increases levels of RIPK1 in key brain regions implicated in pain processing. This project aims to further validate RIPK1 as a target for neuropathic pain using a newly developed positron emission tomography imaging approach. The work will pave the way for new brain-penetrant RIPK1 inhibitors as a safe, effective, and nonaddictive treatment approach for neuropathic pain.

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.