Funded Projects

Women are disproportionately affected by the opioid crisis due to increased pain sensitivity, physician prescribing practices, and self-medication, as well as a faster trajectory from opioid exposure to the development of opioid use disorder (OUD). The University of Kentucky proposes to establish the Women’s Clinical Research Center as part of the NIDA Justice Community Opioid Innovation Network (W-JCOIN), with the overall goal of increasing initiation and maintenance of medications for OUD among high-risk justice-involved women in the transition from jail to the community to reduce opioid relapse and overdose. The KY W-JCOIN has the potential for significant impact on the OUD treatment field by contributing empirical evidence on the effectiveness and implementation of innovative technologies to increase initiation and maintenance of life-saving medications during a critical, high-risk time of community re-entry among vulnerable, justice-involved women in both urban and rural communities.

Deaths from opioid overdose continue to rise; from 2015 to 2016, there was a 28 percent increase in the number of fatal overdoses. Currently available pharmacotherapies include MOR agonists (e.g., buprenorphine) and antagonists (e.g., naloxone), all of which suffer from specific and clear limitations. To address some of the key limitations, Intra-Cellular Therapies Inc (ITI) is developing ITI-333, a novel compound with high-affinity activity at mu opiate (MOP), 5-HT2A, and D1 receptors, that lacks abuse liability and thus offers great promise for the treatment of opioid use disorders. This proposal is for a 2-year UG3 program, including a first-in-human, single ascending dose (SAD) study to assess the safety, tolerability, and pharmacokinetics of ITI-333 in healthy volunteers. This study will then be repeated in a single-center in-patient study with the goal of determining a maximally- tolerated dose (MTD) and completed with human abuse liability and functional pharmacology studies. Together, the researchers believe this clinical development plan will inform further development of ITI-333 and the selection of a cogent Phase 3 clinical path toward FDA approval as a medication for the treatment of OUD.

Correctional settings have the potential to serve as key players in linking individuals with opioid use disorder (OUD) to treatment and health services upon release. Many individuals with OUD are being treated with medications, but these efforts will be ineffective if they fail to connect people to OUD treatment upon release. The Transitions Clinic Network (TCN) program provides enhanced primary care and OUD treatment for people recently released from incarceration. In TCN, formerly incarcerated community health workers are embedded within primary care teams and address social determinants of OUD, provide social support, help patients build trust in the health system, and advocate in interactions with the criminal justice system. This study will assess the effectiveness of the TCN: Post Incarceration Addiction Treatment, Healthcare, and Social Support (TCN PATHS) intervention versus referral to standard primary care on opioid treatment cascade outcomes and whether housing, food access, criminal justice contact, and social support mediate this association.

The growing opioid use epidemic in the U.S. has been associated with a significant increase in the prevalence of pregnant opioid-dependent women and neonatal abstinence syndrome, which is associated with adverse health effects for the infant and with costly hospitalizations. Maintenance with sublingual (SL) buprenorphine (BUP) is efficacious for opioid use disorder but has disadvantages that may be heightened in pregnant women, including the potential for poor adherence, treatment dropout, and negative maternal/fetal effects associated with daily BUP peak-trough cycles. Extended release (XR) formulations may address some of these disadvantages. The primary objective of CTN-0080 is to evaluate the impact of treating opioid use disorder in pregnant women (n = 300) with BUP-XR, compared to BUP-SL, on maternal-infant outcomes. Other objectives include testing a conceptual model of the mechanisms by which BUP-XR may improve maternal-infant outcomes, relative to BUP-SL; determining the economic value of BUP-XR, compared with BUP-SL, to treat OUD in pregnant women; and evaluating the impact of BUP-XR, relative to BUP-SL, on neurodevelopment when the infant/child is approximately 12 and 24 months of age. Ultimately, this study will help in increasing access to treatment as well as provide quality care for pregnant/postpartum women.

Neonatal Opioid Withdrawal Syndrome (NOWS) affects a growing number of neonates each year due to the ongoing opioid epidemic ravaging the United States. Complex neurobehavioral observation of newborns is the primary modality used. It is subjective and time-consuming by nature, requires significant expertise, and can lead to delays in treatment. The goal of this project is to develop an innovative, low-cost, non-invasive, and easy-to-use brain monitor to objectively assess the severity of withdrawal symptoms in newborns exposed to opioids and provide evidence-based decision support to care providers to improve both short- and long-term developmental outcomes. This device, referred to as NeoGUARD, is based on the continuous, automated, and real-time monitoring of brain function to detect EEG abnormalities shown to be related to NOWS and determine severity to guide pharmacological intervention. This study will focus on the initial prototyping and refinement of the hardware and software, as well as initial evaluations of its use.

Although medications are available to treat opioid use disorder (OUD), adherence with treatment programs remains a problem. Nalmefene is an opioid receptor antagonist that was previously approved for treatment of opioid overdose–induced respiratory depression that has a longer duration of action than naloxone. AP007 is a unique formulation of nalmefene-loaded poly(lactic-co-glycolic acid) (PLGA) microparticles that when injected intramuscularly continually releases an effective dose of nalmefene and thus reduces opioid cravings in OUD patients. This group is developing AP007 and will have a lead formulation selected based on in vitro release kinetics data and in vivo pharmacokinetics data in rats. The objectives of the project are to determine safety and efficacy of AP007 in a swine opioid use/withdrawal model, preliminary safety in a first-in-human Phase 1 study, and preliminary efficacy in a Phase 2a multidose study. These results will be used to develop Phase 2 human and Phase 3 clinical studies.

Medication-assisted treatment (MAT) for opioid use disorder (OUD) is highly efficacious, but only a fraction of people with OUD access MAT, and treatment non-adherence is common and associated with poor outcomes. This project aims to increase rates of Suboxone (buprenorphine/naloxone) treatment initiation and adherence among OUD patients recruited from emergency and inpatient acute care by enhancing the Opioid Addiction Recovery Support (OARS)—an existing Q2i company technology—with a new evidence-based reward, contingency management (CM) function that allows for the automatic calculation, delivery, and redemption of rewards contingent on objective evidence of Suboxone initiation and adherence.

Very little research has been conducted on better understanding of phenotypic characterization of individuals with OUD (beyond DSM-5 diagnoses) and how these features predict illness severity, treatment retention or outcomes. The primary objective of the deep phenotyping study is to provide a comprehensive phenotypic characterization (e.g., domains of negative affect, reward salience, cognitive control, mental health) of a heterogeneous sample of individuals (n = 1,000) who currently meet one or more DSM-5 diagnostic criteria for OUD and are in treatment for OUD. In a subset of this sample (n = 100), the investigators conduct digital phenotyping to examine the utility of ecological momentary assessment (EMA), digital sensing and social media to predict retention, medication adherence and opioid use outcomes in patients receiving buprenorphine for OUD. It is anticipated that this foundational study will inform the feasibility and utility of such assessments that can be successfully embedded into imminent and future CTN and other OUD clinical trials.

The parent U19, “Southwest Hub for American Indian Youth Suicide Prevention,” builds capacity among local tribal governments, investigators, interventionists, and service providers across three Southwestern states to: 1) identify at-risk youth and gather robust local data through surveillance; 2) provide regular monitoring and brief interventions to close gaps in continuity of care; and 3) convene regularly for shared learning, policy development, and dissemination of best practices. The parent U19 includes an innovative SMART trial study design. The purpose of this supplement is to gather data on opioid use. Our supplement aims are to: 1) expand suicide surveillance in the Southwest Hub to include opioid use as a potential precipitant, facilitator, and risk factor for subsequent suicidal behavior; 2) explore community beliefs about correlates of risk, protective factors, and behavior functions of opioid abuse in Native American youth; and 3) examine opioid use among SMART trial participants.

The U.S. is in the midst of a devastating opioid epidemic. Since 1999, the number of overdose (OD) deaths involving opioids has quadrupled. These trends are magnified among American Indians/Alaska Natives (AI/ANs) compared to other racial/ethnic groups. AI/ANs are second only to Whites in the rate of OD mortality (8/100,000 versus 12/100,000 deaths, respectively). Medications for opioid use disorder (OUD; i.e., methadone, buprenorphine and naltrexone) are considered the most effective treatment, reducing mortality and increasing abstinence and retention. However, numerous barriers limit the uptake of medications for OUD in tribal communities and within urban treatment settings serving AI/AN individuals. This is a two-phase formative research study to develop and test an implementation intervention for programs to provide medications to treat OUD specifically with AI/AN consumers. The objective of Phase I (12 months) is to develop a culturally centered implementation intervention to integrate medications for opioid use disorder (MOUD) into health care/addiction specialty settings. The objective of Phase II (24 months) is to conduct a preliminary test of the implementation intervention at four sites serving AI/AN communities. Community-based participatory research (CBPR) methods will be used throughout both phases. This study will help with decreasing stigma and increase the utilization of MOUD in health care settings that serve AI/AN populations.

The Coordinating Center (CC) will provide centralized logistical support and facilitate communication and coordination of activities across the cooperative. The CC will provide scientific leadership, which will include providing scientific expertise in the areas of implementation research and economic evaluation. The CC will establish an infrastructure for cross-site data collection, management, harmonization, and data sharing and provide expert methodological and statistical consultation.

A recent FDA public meeting identified sleep disturbance as a primary contributor to opioid use disorder (OUD) treatment failure. Suvorexant (SUVO; Belsomra®) is a dual orexin receptor antagonist that is FDA-approved for insomnia, with low addiction liability, that improves sleep continuity with a single dose, has an extremely safe and mild side-effect profile, has clear interactions with the opioid system, and has not yet been evaluated in OUD patients. The hypothesis is that SUVO will improve total sleep time during withdrawal, have no addiction liability, and be more efficacious than trazodone, a common OUD-associated insomnia medication. Primary outcomes will be objective sleep measures and addiction liability. Secondary measures will include objective, biological, and self-report measures of opioid withdrawal severity, treatment retention, craving, and stress. Results will advance the treatment of OUD, the understanding of sleep and opioids, and the use of SUVO in clinical populations.