Funded Projects

This project will design and test optimized temporal patterns of stimulation to improve the efficacy of commercially available spinal cord stimulation (SCS) systems to treat chronic neuropathic pain. Researchers will build upon a validated biophysical model of the effects of SCS on sensory signal processing in neurons within the dorsal horn of the spinal cord to better understand how to improve the electrical stimulus patterns applied to the spinal cord. They will use sensitivity analyses to determine the robustness of stimulation patterns to variations in electrode positioning, selectivity of stimulation, and biophysical properties of the dorsal horn neural network. Researchers will demonstrate improvements from these new stimulus patterns by 1) measuring their effects on pain-related behavioral outcomes in a rat model of chronic neuropathic pain and by 2) quantifying the effects of optimized temporal patterns on spinal cord neuron activity. The outcome will be mechanistically derived and validated stimulus patterns that are significantly more efficacious than the phenomenologically derived standard of care patterns; these patterns could be implemented with either a software update or minor hardware modifications to existing SCS products.

The increased risk of maternal, obstetric, and newborn morbidity and mortality associated with perinatal prescription opioid (PO) misuse and opioid use disorder (OUD) is well established. Despite clear advances in maternal, fetal, and newborn health with treatment of perinatal opioid misuse and OUD, much work remains. Preliminary data has demonstrated significant reductions in opioid misuse as a result of our Cognitive Behavioral Therapy (CBT) program for pain combined with shared decision making for medication management for pregnant women misusing POs or with OUD (including heroin). However, access to the program is still limited and several obstacles to its expansion remain. This proposal will fill this critical gap by converting their CBT intervention from in-person sessions to a web-based interface. The proposed research will result in a critical advance in the management of opioid use and abuse during pregnancy and prevent both the acute and long-term risks associated with pre- and perinatal PO misuse and OUD, including overdose and death.

Sickle cell disease (SCD) is an inherited hematologic disorder accompanied by severe pain, inflammation, and vascular injury. We propose that nociceptor activation by ongoing hypoxia/reperfusion (H/R) injury leads to the release of neuropeptides by sensory nerves in the skin, stimulating vascular insult and mast cell activation in SCD. In turn, mast cell tryptase activates protease-activated receptor 2 on sensory nerve endings, resulting in exaggerated neuroinflammation, vascular injury, and central sensitization. Our general hypothesis is that neurogenic inflammation contributes to pain in SCD and that cannabinoids provide analgesia by disrupting neurogenic inflammation and nociceptor sensitization. We also hypothesize that EEG and functional MRI can be used to optimize analgesic treatments in SCD. We propose to use transgenic sickle mice, and individual cells involved in evoking pain, to perform this translational study. A proof of principle study in humans will examine the effect of cannabis on pain in sickle patients.

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.

Neuropathic corneal pain (NCP) causes patients to have severe discomfort and a compromised quality of life (QoL). The lack of signs observed by standard examination has resulted in misdiagnosis as dry eye disease (DED). An optical biopsy using laser in vivo confocal microscopy (IVCM) revealed that microneuromas (bulbs at the ends of severed nerves caused by buildup of molecular constituents) are present in NCP but not DED and may serve as a biomarker for NCP. The aims are to (1) use a database of more than 2,000 DED/NCP subjects and more than 500,000 IVCM images to confirm that the presence of microneuromas is an appropriate biomarker for NCP, (2) provide biological validation of microneuromas, (3) develop a validated artificial intelligence (AI) program for automated identification of microneuromas, and (4) establish the clinical utility of microneuromas observed by IVCM as a biomarker for NCP in a prospective, multicenter study.

The Philippine Mollusk Symbiont International Cooperative Biodiversity Group harnesses the vast biodiversity of the Philippines to discover new drugs to treat bacterial infections, parasitic infections, pain, and other neurological conditions and cancer, all of which are serious health problems in both the Philippines and the United States. The Republic of the Philippines represents a unique nexus of exceptional biodiversity, dense human population with pressing societal needs, consequent urgent need for conservation, and government commitment to education and technology to harness national human and natural resources for a sustainable future. Mollusks are one of the most diverse groups of marine animals, and their associated bacteria represent an unexplored trove of chemical diversity. Researchers will use an increasing understanding of the interactions between mollusk symbionts and their hosts to discover the most novel and useful molecules. The project will document and describe Philippine mollusk biodiversity and support training and infrastructure that provide the foundation for conservation of Philippine biodiversity.

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.

Debilitating neuropathic pain occurs in 40 percent to 70 percent of people who suffer from spinal cord injury (SCI). There are no distinguishing characteristics to identify who will develop neuropathic pain. The objective of this research is to develop a biomarker signature prognostic of SCI-induced neuropathic pain (NP). The aims of the project are to (1) identify autoantibodies in plasma samples from acute SCI patients to CNS autoantigens and determine the relationship between autoantibodies levels to the development of NP, (2) identify the autoantibody combination with maximal prognostic accuracy for the development of NP at six months after SCI, and (3) develop and optimize an assay to simultaneously measure several autoantibodies and independently validate the prognostic efficacy for NP using plasma samples collected prospectively. Establishing a panel will refine the prognostic value of these autoantibodies as biomarkers to detect who are vulnerable to NP and may be used to for development of nonaddictive pain therapeutics.

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.

Mortality rates in Appalachia have progressively increased over recent years, in contrast to decreasing mortality rates observed in the remainder of the U.S. The West Virginia Clinical and Translational Science Institute (WVCTSI) was created in 2012 through the initial Clinical and Translational Research (CTR) award and has subsequently formed a well-connected, statewide research network, creating the infrastructure to address the substantial health disparities that exist in West Virginia. WVCTSI is now well positioned to attain the goals of this renewal application that include: 1) building sustainable research infrastructure that substantively contributes to improving West Virginia health outcomes by 2022; 2) recruiting the next generation of clinician scientists and translational researchers that excel in team science and are positioned for long-term success; and 3) actively engaging with multiple stakeholders that include communities, medical providers, and policy makers to drive research that improves the health of West Virginians.

New approaches that can effectively ameliorate acute and chronic migraine pain are urgently needed. Due to its critical roles in inducing migraine pain, CGRP and its receptor complex, the calcitonin receptor-like receptor (CLR) and receptor activity-modifying protein 1 (RAMP1) have been targeted for migraine treatment. A new strategy for targeting the CGRP-mediated signaling pathway is needed to meet the medical need of migraine patients. The team developed a group of long-acting CGRP/RAMP1-specific peptide super-antagonists that form gels in situ in aqueous solution. Based on this exciting finding, the investigators propose to develop and identify the most potent antagonistic analog candidates (Aim 1), and characterize the pharmacokinetics of gel depots made of the selected candidates in vivo (Aim 2). This feasibility study is needed to explore the translational potential of these newly invented super-antagonists for the treatment of chronic migraine in combination with conventional migraine agents.