Funded Projects

There are currently no effective non-opioid-based pharmacotherapies for treatment of opioid use disorder (OUD). Glial cell line-derived neurotrophic factor (GDNF) is a beneficial protein normally present in low levels in the adult brain, and there is strong evidence that it has clinical potential as a therapy for OUD and relapse reduction. Researchers have developed a non-invasive approach that bypasses the blood-brain barrier to increase levels of GDNF using intranasal administration of gene nanoparticles that make GDNF protein within the brain. This project will test whether this intranasal GDNF gene therapy can suppress drug craving and reduce the tendency to start using a drug again after a period of abstinence in experimental models, thus providing a long-term therapeutic strategy for reducing opioid craving and preventing relapse.

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 project is part of a multi-center, randomized controlled clinical trial that directly compares NOWS treatments—morphine, methadone, and buprenorphine—and takes into account other types of non-drug therapies, such as behavioral interventions. The goal is to generate results that can inform clinical practice guidelines and give newborns with NOWS the best start possible. 

The University of Louisville serves a large, diverse population that is disproportionately affected by the opioid crisis. Mothers and infants treated by the university’s healthcare team live in rural
and urban underserved regions where the frequency of opioid use during pregnancy is among the highest in the country, with a rate estimated at 3 times the national average.

Chronic pain and opioid use disorder often occur together, but there are a striking lack of integrated treatments accessible to people in need, particularly Black and Hispanic individuals living and seeking care in under resourced settings. This research will examine multi-modal, evidence-based practices in diverse health care settings and among diverse populations with both chronic pain and opioid misuse/disorder. The first project will examine the effects of yoga and physical therapy onsite at methadone opioid treatment clinics. The second project will test Acceptance and Commitment Therapy and a care-management smartphone app for individuals in primary-care based buprenorphine treatment. The third project will compare microdosing versus standard doses/timing of buprenorphine for hospitalized patients. All three projects will improve access to care for Black and Hispanic individuals in under resourced settings by bringing integrated treatments to them. The interventions have high potential to be used broadly.

Researchers at the University of Alabama at Birmingham and the University of Alabama will enroll pregnant women during their second trimester and follow their infants through a comprehensive longitudinal study. This program will follow 300 mother-infant pairs to understand how early life exposure to drugs and other environmental factors affects developmental trajectories. In addition, this program will determine how genetic and biological factors interact with environmental factors to influence neurodevelopment. This study will take place at the University of Alabama at Birmingham, recruiting participants from mainly rural populations with low access to obstetric/gynecological (OB/GYN) care and high rates of substance use.

The increased presence of fentanyl in cocaine has drastically increased cocaine-related overdoses, yet there is no research quantifying how cocaine users respond to fentanyl adulteration. In this online study, a modification of a behavioral economics measure, the Cocaine Purchase Task, will quantify for the first time how cocaine users respond to fentanyl contamination in cocaine. This study aims to 1) Determine how possible fentanyl adulteration affects cocaine demand, and 2) Determine which individual characteristics moderate the relationship between fentanyl adulteration and cocaine demand. Determining how possible fentanyl adulteration affects cocaine demand can help inform the development of effective harm reduction interventions for people who use cocaine to address the worsening crisis of opioid related deaths.

The HEALthy Brain and Child Development National Consortium (HBCD-NC) will establish a normative model 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 research dataset to the scientific community. The HBCD-NC will collect neural, behavioral, physiological, and psychological measures, as well as biospecimens, to characterize neurodevelopmental trajectories. Most participants will be recruited in the second trimester of pregnancy, with a smaller subset recruited at birth, and followed for the first 10 years of life. The University of San Diego study site will recruit a diverse cohort of mother-infant pairs, including Hispanic and American Indian individuals.

This research is designed to further understand implementation of medication-delivery programs in jail and/or community treatment programs based on perceptions of staff delivering medications for opioid use disorder and related services. The primary study uses a mainly quantitative approach to examine medication-delivery program implementation in jail and/or treatment settings. The study compliments ongoing research by incorporating a qualitative approach to assess perceptions of diverse staff through two interviews each with 80 individuals working in jail and/or treatment facilities involved in an ongoing study. Qualitative methods will add depth and nuance to our understanding of how medication-delivery programmatic outcomes relate to correctional staff perceptions.

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.

The HEALthy Brain and Child Development National Consortium (HBCD-NC) will establish a normative model 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 research dataset to the scientific community. The HBCD-NC will collect neural, behavioral, physiological, and psychological measures, as well as biospecimens, to characterize neurodevelopmental trajectories. Most participants will be recruited in the second trimester of pregnancy, with a smaller subset recruited at birth, and followed for the first 10 years of life. This study will take place at the University of Wisconsin, Madison, where researchers will have access to a diverse group of people, including women with criminal justice involvement.

Emerging adults (ages 16-25) involved with public systems and individuals involved with the justice system (including emerging adults) are at the highest risk for problems stemming from opioid use disorder. Emerging adults report the highest rates of drug use, including opiates, and those involved with public systems are more likely to have poor outcomes. For adults of all ages, opioid use increases the likelihood of justice system involvement. Peer recovery support services and recovery residences are growing nationally and may benefit these two groups tremendously, but research on them is limited. This project will establish the Initiative for Justice and Emerging Adult Populations to advance recovery support services research through a partnership between researchers, people in recovery from these two populations, recovery support service providers, and payors.

The nation’s opioid epidemic remains a public health emergency, marked by high rates of opioid use and misuse among adults and a correlated rising incidence of neonatal opioid withdrawal syndrome (NOWS) in infants exposed to opioids before they are born. There are currently no pharmacotherapies approved by the Food and Drug Administration (FDA) for the treatment of NOWS. This research will complete manufacturing and clinical trial activities to evaluate and support FDA approval of a pediatric-appropriate formulation of lofexidine, a non-opioid medication approved for mitigation of opioid withdrawal symptoms in adults, as a first line-therapy in NOWS patients through two clinical trials to (1) identify an optimal dosing regimen of lofexidine for treatment of NOWS, and (2) evaluate the risks and benefits of its use in improving withdrawal symptoms, limiting infant exposure to other off-label narcotic medications and shortening the infant’s overall stay in the hospital.

The parent project’s Housing First initiative can be divided into two interconnected goals: (1) to reduce the likelihood of substance misuse and the development of an opioid use disorder and (2) to provide youth with housing stability and opioid and related risk prevention services that will assist them in exiting homelessness. The proposed supplement project complements the goals of the parent grant project by exploring two additional components that are related to exiting homelessness and reducing substance misuse or the development of opioid use disorder: (1) to further investigate youth’s interactions with social service providers, via qualitative methods, with the goal of cultivating a detail understanding actionable practices as it relates to fostering successful interactions between substance using homeless youth and service providers and (2) to evaluate, via quantitative methods, the extent to which ethnic identity protects youth from the negative effects of discrimination, substance misuse, and the development of a opioid use disorder.

Opioid use disproportionally affects people with co-occurring mental health disorders. Although medication for opioid use disorder (MOUD) is the gold standard of care, engagement rates are low. Also, it is unclear whether addition of one or more behavioral interventions improves outcomes of MOUD treatment, particularly in patients with co-occurring mental health disorders. This project evaluates the effectiveness of the “Maintaining Independence and Sobriety through Systems Integration, Outreach and Networking (MISSION)” intervention—a multi-component, cross-disciplinary, team-based treatment approach that combines three evidence-based practices with MOUD—in people with co-occurring mental health disorders. The 4-year, five-arm, randomized controlled clinical trial will determine the therapeutic benefit of adding MISSION to MOUD and identify the MISSION components that yield the largest clinical improvement and offer the greatest return on investment.