Funded Projects

Profound sleep disturbances during abstinence have long been suspected of perpetuating vulnerability to relapse of people who misuse or are addicted to opioids. An animal model has shown that long-term sleep deficiency results in a persistent state of physiological dysregulation that is expected to modify the biology of abstinence and increase relapse potential. This study seeks to discover how persistent sleep restriction during withdrawal from opioid use increases vulnerability to relapse in the animal model by testing whether persistent sleep restriction during abstinence from opioid use is sufficient to increase opioid drug seeking. The functional outcome measure will be the degree of mitigation of opioid seeking. These studies will provide a basis for novel translational approaches to target mechanisms that are demonstrated to cause increased vulnerability to relapse.

There is little evidence available to guide clinical care for patients on long-term opioid therapy for whom risks exceed benefits. Given valid fears about both pain and withdrawal during decreased dosing (tapering), these individuals face challenges, including concerns about being abandoned by providers and uncertainty about the need to discontinue opioids. As such, these patients are hesitant to enroll voluntarily in opioid discontinuation research, further deepening the clinical evidence gap. This project will evaluate three effective and scalable interventions for individuals on long-term opioid therapy: (1) low-dose transdermal buprenorphine (without) of opioid withdrawal, (2) a brief cognitive behavioral intervention for pain, and (3) noninvasive brain stimulation.

The Medical University of South Carolina (MUSC) Specialized Clinical Center (Hub) of the Early Phase Pain Investigation Clinical Network (EPPIC-Net) will provide a robust and readily accessible infrastructure for rapid implementation and performance of high-quality comprehensive studies of novel treatments for patients with a wide variety of pain conditions. The MUSC-Hub will harness multidisciplinary clinical, research, statistical, and data management expertise to provide the scientific leadership and infrastructure required to design and conduct multisite Phase II clinical trials, biomarker validation studies, and deep phenotyping of patient populations as part of the EPPIC-Net with the overall goal of accelerating the development of new therapies for patients with acute and/or chronic pain.

Innovative interventions being conducted in emergency departments (EDs) for the treatment of opioid use disorders (OUD) have engaged more OUD individuals in treatment and saved lives. However, individuals who present to the ED following an opioid overdose, particularly those who have received naloxone reversal, are often resistant to accepting treatment. An innovative state-funded project called FAVOR Overdose Recovery Coaching Evaluation (FORCE) was initiated to try to address this problem wherein trained peer recovery coaches are called to the ED as soon as an opioid overdose victim is admitted. The proposed project will assess the feasibility and replicability of this model, assess whether the FORCE approach leads to more opioid overdose survivors entering formal substance use disorder treatment at one month compared to treatment as usual, and assess whether the FORCE approach leads to better retention in SUD treatment for OUD overdose survivors over time.

Hospital inpatient stays due to opioid-related health problems are a reachable moment for increasing access to treatment with medications for opioid use disorder (MOUD). Hospitalized patients with opioid use disorder (OUD) are at particularly high risk for morbidity, mortality, and high medical costs in the U.S. This study will substantially inform the care management of OUD in hospitalized patients. The project includes a comparative effectiveness research trial and an implementation research trial, which will lead to models of broad dissemination for treatment approaches to this largely unaddressed population. They will examine whether (1) in hospitals with addiction medicine consultation services, hospital-initiated extended-release buprenorphine (XR-BUP), compared with other OUD medications, results in increased engagement in treatment with MOUD following hospital discharge and (2) training hospitals without such consultation services on best practices for initiating MOUD using consultation service hubs improves medication uptake in hospitals and increased MOUD treatment engagement following discharge.

This project aims to develop and clinically validate a 64-channel spinal cord stimulation therapy for treating chronic neuropathic pain of the lower extremities, groin, and lower back. With an increased channel count and the ability to precisely target medial and lateral structures of the spinal cord, the system will treat chronic pain with greater efficacy and reduced side effects. This project will pursue a safe, effective, and non-addictive treatment for neuropathic pain through the testing of enhanced HD64 active leads to be manufactured under GMP regulations. The leads will then undergo electrical, mechanical, biocompatibility, and sterilization testing before being tested in a 10-subject early feasibility study.

The research team will develop HD64—a high-resolution, 64-channel spinal cord stimulation therapy to provide more pain relief for those suffering from chronic neuropathic pain and opioid dependence. HD64 provides an ultra-thin conformal blanket of stimulation contacts across the width of the spinal cord and enables more precise targeting of the lateral structures of the spinal cord to enhance pain relief. A cadaveric pilot run followed by a non-significant risk intraoperative study will be performed to inform the design parameters of HD64 arrays. The study will evaluate activation of medial and lateral spinal targets. At the end of Phase 1, the clinical feasibility of HD64 surgical leads will be established. In Phase 2, researchers will develop an external active lead pulse generator and charger. They will perform an early feasibility study human trial using active HD64 and mechanical and electrical design verification testing and chronic safety studies in large animals.

This project aims to demonstrate the safety and effectiveness of a novel treatment for opiate addiction using a technique called photobiomodulation, application of light to the forehead. The treatment consists of using a 4-minute application of transcranial photobiomodulation, near-infrared mode, through a supra-luminous LED, to one side of the forehead over the brain hemisphere that has been determined to have a more positive emotional valence. The study will examine differences in opioid cravings, anxiety, depression, and opioid use between participants receiving the treatment and those receiving a sham treatment. We will evaluate patients weekly for safety and efficacy for 3 weeks post-treatment. In Aim II, a highly-regarded product engineer will work with the company to design a marketable product that may have patentable elements.

Acute and chronic low back pain are among the most common sources of short- and long-term disability. Fear of pain and disability, or “catastrophizing,” increases opioid use, but is reduced when patients have effective options and feel control over pain. The goal of this project is to develop an opioid-sparing therapeutic consumer device for low back pain, with multiple patient-controlled effective neuromodulatory pain relief options, including vibration, pressure, cold, and heat. After proving that providing a multimodal device is effective for pain, the project will determine whether the availability of an effective home therapy device reduces opioid use for patients with acute and chronic low back pain.

Opioid Use Disorder (OUD) prevalence has reached unprecedented levels among adolescents and emerging adults. Recovery Support Services (RSS) for persons with SUDs typically focus on the individual client after acute care. But for youth, developmental theory underscores the primacy of family-level risk and protective factors, and family-based interventions have the strongest empirical support. Yet there is a lack of research, clinical resources, and generalizable metrics focused on family-based RSS for youth with OUD. This study will establish a sustainable research network to develop and evaluate innovative family-based RSS across the youth OUD services cascade. The overall goal is to conduct research to strategies to promote family integration in youth OUD services, increase service engagement, and build supportive family environments for youth recovery. The specific goals focus on 1) innovations in family RSS interventions and metrics to assist youth OUD providers with integrating families in OUD services and, 2) innovations in measurement of direct-to-family RSS for families of youth with OUD. If successful, this study will systematically build a research and technical assistance infrastructure designed to develop and evaluate innovative family-based RSS for youth with OUD that span all phases of the services cascade: screening and referral, treatment initiation, treatment delivery, and continuing care.

To avoid the reliance on opioids for treatment of pain, researchers are investigating alternative approaches to disrupt the transmission of pain signals by specialized neurons in the body, such as dorsal root ganglion neurons in the spinal cord. Molecules called voltage-gated sodium channels that are located in the membranes of dorsal root ganglion neurons are essential for transmission of the pain signals. People carrying a specific variant of these channels, NaV1.7, are insensitive to pain; therefore, strategies to block this particular channel might help in the development of non-addictive pain treatment approaches. Navega Therapeutics is developing an innovative gene therapy that specifically targets NaV1.7. Using studies in human cell lines, they will identify the best designs to then test this gene therapy approach in human dorsal root ganglion neurons.