Funded Projects

Postoperative pain is a major contributor to the current opioid epidemic. Novel objective measures capable of personalizing pain care will enhance medical precision in prevention and treatment of postoperative pain. This project seeks to discover and validate a novel biosignature of the human pain experience, based on underlying IL-1 family cytokine activity and associated brain endogenous opioid function, that is readily quantifiable and clinically translatable to prevention and treatment of postoperative pain states. Specific aims will assess whether the novel biosignature will predict 1) experimentally induced pain during an experimental nociceptive pain challenge; 2) postoperative pain states with accuracy >75%, accounting for a wide range of variance in the human pain experience; and 3) postoperative pain states in an expanded clinically enriched sample.

Using neural tissues from pain patients, this project will investigate mechanisms of neuronal and/or immune dysfunction driving chronic pain. The researchers will use spatial transcriptomics on human dorsal root ganglion (DRG) and spinal cord tissues to examine the cellular expression profile for these targets using the 10X Genomics Visium technology. The use of tissues from control surgical patients and organ donors as well as surgical patients with neuropathic pain will enable validation of expression of these targets in human tissue as well as indication of their potential involvement in neuropathic pain. This collaborative effort will use DRGs removed from pain-phenotyped patients during neurological surgery, as well as lumbar DRGs and spinal cord from organ donors. This study will map the spatial transcriptomes at approximately single cell resolution in the human DRG and spinal cord.

Effective treatments are elusive for the majority of patients with neuropathic pain. Reactive oxygen and nitrogen species (ROS/RNS) are involved in neuropathic pain, because they drive mitochondrial dysfunction, cytokine production, and neuronal hyperexcitability; therefore, stimulation of endogenous antioxidants is predicted to simultaneously resolve multiple neuropathic pain mechanisms. Nuclear factor erythroid 2-related factor 2 (Nrf2) is a transcription factor that is a potential therapeutic target because it regulates the expression of a large number of endogenous antioxidant-related genes and can be activated with a single drug. This project will test the hypothesis that Nrf2 activation increases multiple endogenous antioxidants, therefore reversing neuropathic pain behaviors and counteracting neuropathic pain mechanisms that are driven by ROS/RNS and could provide an effective pain therapy, with minimal abuse/addictive potential.

SER-227 is a long-acting polymer pro-drug of buprenorphine that is being developed to treat post- operative pain following major surgeries such as bunionectomy, abdominoplasty, thoracotomy and knee and hip surgery. The ultimate goal is to demonstrate that SER-227 can be manufactured and tested preclinically to show that it is safe for use in a Phase I clinical study. Aims include 1.SER-227 chemistry and process optimization to generate a technical package, 2. SER-227 manufactured under current Good Manufacturing Practices, 3. Evaluated in formal toxicology studies in rodent and non-rodent animals so that justifications can be made to support a ‘first-in-man’ study, and 4. Submission of an Investigational New Drug application (IND) along with a Phase I clinical  protocol in normal volunteers to measure the safety, tolerability and pharmacokinetics of  buprenorphine that is released from SER-227. 

The overdose crisis has expanded rapidly among adolescent populations in recent years, largely due to illicit substances containing lethal amounts of the highly potent synthetic opioid fentanyl. However, a provider shortage limits access to effective treatment for adolescents with opioid use disorder and other substance use disorders (SUD). Although primary care is a promising setting for expanding delivery of SUD treatment to adolescents, many primary care providers lack the training, resources, and support systems to deliver these services confidently and effectively. This project will leverage a large-scale rollout of integrated behavioral health care in a statewide health system. The research will test whether embedding behavioral health specialists into primary care visits, introducing case management and electronic clinical decision support tools, and reducing stigma will increase delivery of SUD treatment to adolescents.

Neonatal abstinence syndrome (NAS) rates have increased since 2000. To determine multifactorial genetic, psychosocial predictors of opioid-related maternal and infant outcomes using rigorous prospective longitudinal design, innovative combinatorial pharmacogenetic approach, fetal MRI, and neonatal brain resting state functional MRI analysis, we hypothesize that a combination of maternal and infant genetic profiles, maternal psychosocial factors, maternal opioid treatment response, fetal and neonatal neurodevelopment, and NAS treatment will affect maternal and childhood outcomes with prenatal opioid exposure. The specific aims are to (1) Identify high-risk genetic profiles and psychosocial factors in pregnant women with opioid use disorder (OUD) and predisposing to poor maternal opioid maintenance treatment outcomes; (2) Determine maternal-infant genetic profiles and maternal opioid treatment factors predicting adverse fetal development, severity of NAS, and neonatal brain function; and (3) Develop predictive models for maternal opioid relapse and poor long-term neurodevelopmental outcomes in children with in utero opioid exposure.

Previous studies found that African American (AA) and low socioeconomic status (SES) patients are less likely to receive guideline-concordant pain care relative to White and high SES patients. According to research and theory, enhancing clinician perspective-taking is a promising strategy for improving the care of AA and low SES patients. We have developed an innovative methodology that utilizes computer-simulated patients and environments to assess, understand, and remediate pain treatment disparities. Our approach allows for the intervention to be individually tailored to each trainee, thereby enhancing its impact. It also allows for individual trainees to gain exposure to a greater range of racially and socioeconomically diverse patients than can normally be obtained in traditional training settings. We hypothesize that our perspective-taking intervention will increase trainees’ knowledge of their own biases, enhance trainees’ empathy toward patients, and reduce trainees’ anxiety/threat toward patients, and that these changes will reduce pain treatment disparities.

Overdose fatality review teams review cases of overdose deaths to identify system gaps and innovative prevention and intervention strategies. With the rise in overdose deaths, these multidisciplinary teams require more timely population-level data to inform their recommendations. This project will develop the Overdose Touchpoints Dashboard that uses real-time data and records from multiple sources to help visualize common “overdose touchpoints” for harm reduction services and treatment opportunities. This research will compare use of the dashboard to standard overdose fatality review practices. The project will assess multiple aspects related to use of the dashboard, including process, staff attitudes, implementation successes, and usability.

Neonatal Opioid Withdrawal Syndrome (NOWS) is a condition that occurs when newborns are exposed to opioids during pregnancy. Symptoms often include tremors, excessive crying, sleep deprivation, and swallowing difficulties. Cases are rising, with a newborn affected by NOWS approximately every 15 minutes. Currently, healthcare providers in the United States lack standard, evidence-based treatments for NOWS.

This research aims to define factors involved in the transition from acute to chronic pain, toward reducing opioid use and discovering new, non-addictive pain treatments. This project will develop recruitment efforts to engage a diverse patient population in clinical research that results from new findings about the transition from acute to chronic pain. The project will use focus groups, led by experts in health equity and implementation research, and patient navigators to enhance recruitment of diverse research participants.

The Acute to Chronic Pain Signatures Program is developing a comprehensive data set that can be used to help predict which patients will recover from acute pain associated with surgery or injury and which ones will develop long-lasting chronic pain. This project will support an early career faculty member from a group underrepresented in biomedicine. The research will enhance skills development toward conducting and coordinating clinical pain research, generating omics datasets, advancing understanding of statistical methods, and other activities required for career development. 

Fibromyalgia (FM) is a chronic pain condition characterized by widespread musculoskeletal pain, tenderness, and stiffness associated with fatigue and sleep disturbance. The investigators have recently completed a trial that demonstrated efficacy of active transcutaneous electrical nerve stimulation (TENS) compared with placebo TENS or no treatment in women with FM. While physical therapists are trained in using TENS, it is underused in clinical practice. This application proposes a pragmatic clinical trial of TENS for patients with FM to determine if the addition of TENS to physical therapy (PT) reduces pain, increases PT adherence, and helps achieve functional goals with less drug use. This study will address the critical need for strategies to implement effective nonpharmacologic treatments for FM. Successful completion of this trial will provide generalizable effectiveness data for referring providers, physical therapists, and insurers and will inform future pragmatic trials of nonpharmacologic treatments conducted in PT practices.