Funded Projects

Since 2002, persons with opioid use disorders who desire medication-assisted treatment can be treated with buprenorphine, which has been shown to be efficacious. Buprenorphine treatment can occur in any medical office-based setting, is prescribed by any physician who seeks to become waivered, and is taken by patients at home unsupervised. However, without visual confirmation of medication ingestion, providers remain unsure if patients divert part or all of their buprenorphine medication. This project will develop the technical and logistical workflow needed to implement a video-­based application, miDOT, for office-­based buprenorphine monitoring during the initial months of care, which will allow health care providers to monitor whether patients ingest the drug and adhere to treatment. The project will configure a video-based DOT platform, evaluate its effectiveness in securing medication ingestion and care retention for illicit opiate users, and solidify routes of sustainable commercial viability with commercial partners.

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.

The Great Lakes Node of the NIDA-supported Drug Abuse Clinical Trials Network (CTN) represents all of the major academic medical centers in the Greater Chicago and Wisconsin areas and serves as a vital Midwestern hub for the CTN. This project supports a scientist from a group underrepresented in biomedicine to expand the work of this CTN node on research in several areas. These include mHealth, eHealth, artificial intelligence, natural language processing, and telehealth interventions; focus on youth/adolescent health and seniors/aging; health disparities; and professional education about opioid and substance treatment.

There is a need for an opioid use disorder (OUD) treatment that can prevent relapse in detoxified subjects. Titan's proprietary subdermal implants can provide long-term, non-fluctuating therapeutic levels of drug continuously following a single office-based insertion procedure. The non-biodegradable solid matrix implant formulation virtually eliminates the risk of accidental drug dumping and associated serious toxicity, and its subdermal location assures patient compliance for the 6-month treatment duration. Nalmefene hydrochloride (nalmefene) is an opioid receptor antagonist approved for the management and reversal of opioid overdose. Prototype nalmefene implants inserted subdermally in rats delivered nalmefene continuously for months without any observable safety concerns. This proposed study will develop a 6-month implantable device that delivers nalmefene at a steady rate to prevent relapse to opioid dependence following opioid detoxification. This project will manufacture nalmefene implants, complete nonclinical safety and pharmacology studies, and conduct clinical studies in OUD subjects to support a New Drug Application.

This project proposes to develop novel Gpr151 antagonists to facilitate long-term abstinence in opioid-dependent individuals. Gpr151 is an orphan G-protein coupled receptor that is expressed almost exclusively in the medial habenula and co-localizes with ?-opioid receptors to regulate the inhibitory effects of opioids on habenular neurons. Mice with a null mutation in Gpr151 (Gpr151-/- mice) are resistant to the stimulant and rewarding effects of opioids and self-administer lower quantities of oxycodone. Based on this preliminary work, the study will seek to identify Gpr151 antagonists through a variety of methods and optimize them for potency, selectivity, drug metabolism, pharmacokinetics, and brain penetration properties. The study will evaluate effects of those with the most favorable drug-like physiochemical properties on electrophysiological responses of medial habenula to opioid drugs and assess the in vivo efficacy of these novel antagonists in wild-type and Gpr151-/- mice.

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.

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 be based out of the Children’s Hospital of Philadelphia and the University of Pennsylvania and will represent an urban population with a wide socioeconomic status range.

Naltrexone is the only medication approved by the U.S. Food and Drug Administration to prevent relapse from opioid use disorder. This medication remains underused because it must be injected into muscle by a nurse and is relatively expensive. This project will develop and test a novel naltrexone skin patch that is easier to use, more comfortable, and inexpensive.

This study will examine the epidemiology of injection drug use, its infectious consequences, and service accessibility among young persons who inject drugs (PWID) in 15 rural counties in Maine, New Hampshire, and Vermont, then implement an integrated telemedicine approach to treat opioid use disorder (OUD) and reduce infections and overdose. The UG3 phase will characterize the risk environment and epidemiology of OUD, its infectious complications, opioid overdose, risk behaviors, service use, and needs in young PWID in these counties. An environmental assessment of policy and infrastructure will examine available services, needs, and gaps. The UH3 phase will evaluate the effectiveness of a regionalized integrated model of expanded service delivery for rural PWID. This project will provide in-depth understanding of high-risk rural PWID, inform community response strategies, and implement a comprehensive, integrated approach to treat OUD and reduce overdose and infectious complications among PWID in the rural United States.

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.

The overdose crisis has expanded rapidly among adolescent populations in recent years, largely due to illicit substances containing lethal amounts of the highly potent synthetic opioid fentanyl. However, a provider shortage limits access to effective treatment for adolescents with opioid use disorder and other substance use disorders (SUD). Although primary care is a promising setting for expanding delivery of SUD treatment to adolescents, many primary care providers lack the training, resources, and support systems to deliver these services confidently and effectively. This project will leverage a large-scale rollout of integrated behavioral health care in a statewide health system. The research will test whether embedding behavioral health specialists into primary care visits, introducing case management and electronic clinical decision support tools, and reducing stigma will increase delivery of SUD treatment to adolescents.

As states make unprecedented changes to prescription opioid (PO) policies and cannabis laws, the independent and synergistic contributions that both types of measures have on opioid-prescribing practices and opioid overdoses, with and without benzodiazepines (BZDs), are not known. This study will pursue this aim in the U.S. population and Medicaid patients with chronic pain, aiming to: (1) examine whether nonmedical use of POs, BZDs, and heroin and opioid- and BZD-use disorders decreased following enactment of more restrictive PO policies and less restrictive cannabis laws in 2004–2019; and (2) test whether Medicaid patients are less likely to have claims for opioid prescribing, clinic visits for chronic pain, and opioid overdoses following enactment of more restrictive PO policies and less restrictive cannabis laws in 2001–2019. This study will provide findings about the types of policies that are most likely to end the opioid epidemic.

Opioids have been found to be ineffective for chronic lower back pain (CLBP), yet they are still commonly prescribed. TAMADÉ, LLC aims to leverage a novel and validated technology based on virtual reality (VR) to provide therapy to CLBP patients on a daily opioid dosage with an opioid-sparing pain management tool aiming to increase pain management efficacy and decrease health complications. The intervention uses VR to stimulate patients’ visual, auditory, and haptic fields in order to simultaneously distract and actively engage patients in biofeedback therapy, where patients consciously self-regulate their nervous system by paring down their sympathetic tone through exercises in controlling respiration and heart rate. The study will compare patients receiving the proposed VR-based intervention with a group receiving either just opioids or opioids with sham VR. All groups will receive the same opioid tapering guidelines.