Funded Projects

Levo-alpha-acetylmethadol (LAAM) offers numerous behavioral and clinical advantages for select opioid use disorder (OUD) patients who do not respond to standard treatment. While LAAM was withdrawn from the market despite being approved for OUD treatment, this project seeks to develop novel, patentable, convenient dosage forms of LAAM, including novel LAAM oral dosage formulations and novel buccal film formulations of LAAM. Morphology, mechanical property, drug release kinetics, and stability of the oral dosage and buccal film formulations will be characterized to determine the instant release or steady release of LAAM, respectively. The two lead LAAM formulations with adequate release and stability profiles will be chosen through optimization studies both in vitro and in vivo. A human pharmacokinetic/pharmacodynamic study will then be carried out on the two selected formulations.

Currently no medications are approved by the U.S. Food and Drug Administration to treat cocaine use disorder, which compromises cognitive function associated with achieving goals such as working memory, the ability to update information, and mental flexibility. This project will test whether  stimulating dopamine activity in the brain with the drug rotigotine (approved to treat Parkinson’s disease) is effective for treating cocaine use disorder. Past research has also shown that rotigotine can improve nerve cell and cognitive function in Alzheimer’s disease. This project will conduct a clinical trial to test whether treatment with rotigotine combined with cognitive behavioral therapy can reduce cocaine use in people with cocaine use disorder.

Opioid use disorders (OUD) are a national public health emergency with more than 115 fatal overdoses occurring each day in the U.S. and an economic burden of more than $78 billion a year. Several medications are available for treating OUD, but their access is limited and efficacy is often sub-optimal. It is thus urgent to develop new, affordable strategies for the effective treatment of OUD. Immunopharmacotherapy has emerged as a promising treatment approach against OUD that relies on the induction of drug-specific antibodies to neutralize circulating drug molecules and reduce or cancel their effects. Several groups have attempted to apply this strategy with mixed results, suggesting that novel immunization platforms must be tested to further improve vaccine efficacy against OUD. This project will fabricate novel nanoparticle-based vaccines against OUD that are likely to boost their immunogenicity and lead to a more robust and effective immune response against the target opioid. The broad impact of this project resides in the rational design of nanoparticle-based vaccines that are safe and effective against opioids. This novel nanoparticle-based immunization strategy can be applied to the development of next-generation vaccines against a range of OUD and other substance use disorders.

Hospitalized patients often receive opioids for pain and sleep management, which can contribute to opioid dependence and continued use after leaving the hospital. Even when hospital stays are extended to wean people from opioids, these patients remain at increased risk for opioid use disorder and withdrawal.  This project will develop a novel small molecule medication that blocks nerve inflammation to prevent opioid dependence in hospitalized patients receiving opioids. 

Pain is one of the most common symptoms in cancer patients and one least likely to be adequately treated. It is particularly common in advanced cancer, affecting an estimated 64% of patients with advanced disease. Pain treatment guidelines state patients should have access to behavioral pain interventions that educate them about pain and teach them skills for managing it. The parent grant will evaluate the effectiveness of an evidence based pain management intervention called ?Pain Coping Skills Training? in a web based format for patients with advanced cancer. This supplement will provide support for a training opportunity that aligns with the goals of the parent grant and includes community outreach and engaging underserved populations in clinical research.

Chronic musculoskeletal pain is common and often severe enough to be disabling. Some treatments such as cognitive behavioral therapies or analgesics may relieve pain for some, but not all patients. Combining effective therapies and providing support to ensure that patients are motivated to adhere to their treatment may prove to be more beneficial to patients than prescribing a drug or recommending a single non-pharmacological treatment. This study aims to evaluate a combination of complementary treatments and Registered Nurse (RN) support to motivate patients to use and maintain combined therapies. Some patients will receive phone-based motivational interviews with an RN to enhance their adherence to pain coping skills learned through web-based cognitive behavioral therapy in combination with duloxetine, a pain-relieving drug. Others will receive both treatments but will not receive support from an RN. The study aims to determine whether motivational nursing support enhances adherence to newly learned pain coping skills, and results in improved pain relief and physical function.

This research is intended to create multidisciplinary team science collaborations to develop effective interventions, best models of care for delivery of services, and sustainable implementation strategies for access to quality care for complex patients with chronic pain and opioid use disorder or opioid misuse. To allow comparison and analysis of data created in nine unique clinical trials funded across four centers, common data elements (CDEs) were selected to assess all aspects of a patient’s condition and experience. The purpose of this project is to make the IMPOWR CDE data more FAIR (Findable, Accessible, Interoperable, Reusable) by building a tool that will automate the mapping/conversion of HEAL-related data to the Observational Medical Outcomes Partnership data model that allows for systematic analysis of data from different databases. Upon completion, this tool would be shared with the HEAL research community as a new resource to enable broader harmonization and secondary data analysis.

Decreasing opioid dosing faster than advised by clinical recommendations often leaves chronic pain unaddressed and may increase the risk of overdose and suicide compared to continuing long-term opioid treatment. Clinical and research communities are uncertain about how to assess and manage long-term opioid therapy, despite having diagnostic and treatment frameworks for chronic pain and opioid use disorder. Because of this undefined space, health policy, institutions, and practitioners lack clear advice on long-term opioid prescribing in chronic pain. The goal of the MRC is to provide infrastructure support for the network; create a risk-benefit decision tool to assist providers in determining when opioids should be continued as prescribed, tapered, or tapered/discontinued; and develop and validate a clinical definition for this population (name, identifying associated symptoms/behaviors, and generating a screening tool). This project will leverage big data analytics in administrative datasets, natural language processing approaches in electronic health records, and cohort modeling techniques to accomplish these key responsibilities. These efforts will complement the qualitative data collection approaches in the Becker Resource Center. 

The IMPOWR (Integrative Management of Chronic Pain and OUD for Whole Recovery) Dissemination, Education, and Coordination Center (IDEA-CC) will develop infrastructure to amplify and create momentum for the findings of the IMPOWR initiative and other linked research networks. This center will i) rapidly deploy a communication framework to link IMPOWR clinical sites with each other and the larger HEAL research frameworks; ii) develop an educational infrastructure addressing stigma and health disparities in patients with co-morbid chronic pain and opioid misuse/disorder; iii) disseminate research findings effectively to targeted audiences; iv) develop a novel composite screening tool for chronic pain and opioid misuse/disorder; and v) harmonize processes for data collection and common data elements of chronic pain and opioid misuse/disorder measures across the IMPOWR research centers, providing a coordinated platform for gathering data from these studies. This center will rapidly disseminate key findings to stakeholders, clinicians, and patients to improve the health and wellbeing of individuals with co-occurring chronic pain and opioid misuse/disorder.

This study will develop and test the feasibility of implementing guidelines on workplace policies to reduce prescription opioid use, decrease chronic opioid use, promote recovery from opioid use disorder, and improve health-related employment outcomes. The researchers will develop and test these guidelines among construction workers. This project will provide critical information to design and conduct a randomized trial to implement and evaluate insurance and employment policy guidelines among labor-management health funds in the building trades. Aim 1 will identify current best-practice health care and employment policies to prevent health and employment consequences of opioid use. Aim 2 will characterize the opioid problem in construction and adapt best-practice healthcare and employment policies to the unique needs of the construction industry. Aim 3 will evaluate the feasibility of implementing workplace opioid guidelines in the construction trades and will define and collect measures of implementation and effectiveness.

TWIK-related spinal cord K+ (TRESK) channel is abundantly expressed in all primary afferent neurons (PANs) in trigeminal ganglion (TG) and dorsal root ganglion (DRG), mediating background K+ currents and controlling the excitability of PANs. TRESK mutations cause migraine headache but not body pain in humans, suggesting that TG neurons are more vulnerable to TRESK dysfunctions. TRESK knock out (KO) mice exhibit more robust behavioral responses than wild-type controls in mouse models of trigeminal pain, especially headache. We will investigate the mechanisms through which TRESK dysfunction differentially affects TG and DRG neurons. Based on our preliminary finding that changes of endogenous TRESK activity correlate with changes of the excitability of TG neurons during estrous cycles in female mice, we will examine whether estrogen increases migraine susceptibility in women through inhibition of TRESK activity in TG neurons. We will test the hypothesis that frequent migraine attacks reduce TG TRESK currents.

Though prenatal exposure to opioids and other substances have adverse effects on neurodevelopment, advances in neuroimaging and developmentally sensitive phenotypic measurement now enable characterization of typical and atypical brain-behavior pathways on an unprecedented scale. The Brains Begin Before Birth (B4) Midwest Consortium, a partnership of neuroscience, substance use, perinatal mental health, and child welfare scientists at Washington University School of Medicine (WUSM) and neuroscience, bioethics, pediatric population health, maternal-fetal, and addiction scientists at Northwestern University (NU). This regional consortium will leverage the contrasting approaches of Illinois (punitive) and Missouri (non-punitive) to prenatal opioid use, providing a platform for examining the impact of jurisdictional variations on science and practice. The consortium provide a framework for addressing three major areas of challenge: (1) legal/ethical, (2) recruitment/retention, and (3) imaging/assessment methods.

Current opioid overdose treatment requires administration of naloxone by first responders, which requires timely identification of the overdose, the need for a rescue injection, and immediate availability of the medication. The development of a fail-safe treatment that would provide a life-saving dose of naloxone without the need for intervention by another party could significantly reduce mortality. The researchers aim to develop a new medical device comprising an implantable, closed-loop system that senses the presence of an opioid overdose, automatically administers a life-saving bolus injection of naloxone, and simultaneously alerts first responders.