Funded Projects

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 Appalachian Node of NIDA Clinical Trials Network (CTN) will address clinical research questions that arise from Central Appalachia, an epicenter of the current opioid epidemic. Its rural geography, culture of independence, strained economy, and lack of access to substance use treatment have all contributed to the epidemic. The three aims of the node are to (1) conduct multi-site trials that address the current opioid crisis, with an emphasis on conducting studies among rural and other underserved populations; (2) propose studies to test innovative uses of existing resources to implement evidence-based practices that will extend state-of-the-art care into resource-poor regions, both rural and urban; and (3) disseminate CTN findings to regional payers and policymakers, practitioners, and the community. Proposed studies built on the work of node investigators include “Serious Bacterial Infections Related to Injection Drug Use: Quality Metrics and Intervention” and “Pharmacist-Assisted Buprenorphine Treatment,” among others.

The Great Lakes Node (GLN) of the NIDA-supported Drug Abuse Clinical Trials Network (CTN) will serve as a vital Midwestern hub for the CTN and expand on the success of the CTN approach. The GLN aims include (1) identify substance misuse research and intervention protocols focused on systems-based practice; (2) establish a digital and computation health core for studies in mHealth, eHealth, artificial intelligence, natural language processing, and telehealth interventions; (3) bring substantial expertise with youth/adolescent health and seniors/aging to examine prevention strategies to mitigate these life-course pathways; (4) support work on opioid misuse that focuses on health disparities, including socioeconomic, geographic, sexual orientation, and gender identity; (5) leverage experience in professional education and practice-based learning to test the impact of professional education on opioid and substance use treatment; and (6) expand the pipeline of early investigators interested in substance misuse research.

Emergency department (ED)-initiated buprenorphine/naloxone (BUP) with referral for ongoing BUP is superior to referral alone in engaging patients with untreated opioid use disorder (OUD) in treatment at 30 days and is cost-effective. However, logistical barriers exist in translating research into practice. New BUP formulations such as the extended-release injectable BUP (CAM2038, XR-BUP) hold promise in addressing many of the barriers more effectively than sublingual buprenorphine (SL-BUP) by treating the patients’ symptoms for up to seven days. This study will recruit, train and provide resources to 30 ED sites throughout the U.S. using implementation facilitation strategies to address stigma and provide ED-initiated BUP for patients presenting with OUD who are not receiving medications for OUD. Once implementation is adequately achieved, the sites will conduct a randomized controlled trial (RCT) to compare the effectiveness of SL-BUP versus XR-BUP on ED patients’ engagement in formal addiction treatment seven days after their ED visit. In addition, in an ancillary component of the study, the use of XR-BUP will be assessed in ED patients with Clinical Opioid Withdrawal Scale (COWS) scores of 4-7.

The opioid overdose epidemic is increasingly affecting urban, poor and predominantly minority populations in the U.S., including Washington, D.C., as indicated by rapidly increasing overdoses clustered in medically underserved, economically disadvantaged, largely African American areas of the District and many of the nation’s other largest cities. This study seeks to (1) develop, implement and conduct a preliminary evaluation of an integrated, community-based collaborative care model, employing peer recovery coaches and telepsychiatry services, to improve utilization and effectiveness of MOUD in Federally Qualified Health Centers (FQHCs) and (2) use a community-based participatory research approach to develop, implement and conduct a preliminary evaluation of outreach, engagement and recovery support interventions in nontraditional community settings (e.g., grassroots community groups, churches or religious organizations, soup kitchens, black barber shops or nail or hair salons).

People who use opioids in rural areas suffer worse health and less insurance coverage. The opioid problem in rural areas is of particular concern, as rural areas have higher overdose rates despite equivalent rates of OUD. This is because rural areas have a scant number of clinics and clinicians who provide medication treatment for OUD. Thus, people living in rural areas must travel long distances to access clinics that may or may not have expertise in providing treatment to patients with OUD. Telemedicine (TM) could efficiently increase capacity for delivery of buprenorphine in rural areas and may increase the number of patients receiving medication treatment and improve treatment retention and outcomes. While the development of medication treatments for opioid use disorder (MOUD) capacity in primary care settings with optimal/comprehensive services is desirable, the current opioid crisis with escalating overdose death rates in rural areas suggests a need to implement an efficient, cost-effective system of MOUD services that can be scaled up quickly. The use of a centralized and Medicare-covered TM vendor utilizing a developed methodology and established organizational infrastructure offers the great potential for a rapid rollout to increase access to MOUD and improve treatment retention in rural areas. This cluster randomized clinical trial with two phases will test expanded treatment access to improve retention on MOUD in highly affected rural areas. Phase I will include implementing telemedicine in a limited number of rural sites with varying levels of office-based opioid treatment (OBOT) to inform implementation strategies for the main trial, and Phase II will include evaluate comparative effectiveness between OBOT alone and OBOT + TM at 30 sites.

For many reasons, the emergency department (ED) is a critical venue to initiate opioid use disorder (OUD) interventions. ED patients have a disproportionately high prevalence of substance use disorders and are at an elevated risk of overdose, and many do not access health care elsewhere. Despite this, OUD interventions are rarely initiated in EDs. The Emergency Department Connection to Care with Buprenorphine for Opioid Use Disorder study (CTN-0079) will assess the feasibility, acceptability and impact of introducing clinical protocols for screening for OUD, buprenorphine treatment initiation, and referral for ongoing treatment in ED settings with high need, limited resources and different staffing structures. This extension study will use the existing infrastructure to evaluate the adoption and sustainability of the clinical protocols introduced at each of the study sites and to identify factors influencing their diffusion and effectiveness.

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 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.

A persistent problem in the dissemination of medications for opioid use disorder (MOUD) is patient dropout, and matching patients to suitable medication early has the potential to minimize dropout. The overall objective of this secondary data analysis study is to develop and disseminate individual level risk prediction models using harmonized data collected from three multi-site clinical trials from the CTN, in order to predict specific clinical outcomes (e.g., dropout, relapse) for patients treated with MOUD, including methadone, buprenorphine or extended-release depot naltrexone. The relative importance of predictors in the best predictive models will be estimated, which may facilitate refinement of common data elements for future OUD studies. The comprehensive, harmonized database of treatment data created in this study can be used for future secondary data analysis studies and will provide a replicable data pipeline to process and validate OUD data in future protocols.

A persistent problem in the dissemination of medications for opioid use disorder (MOUD) is patient dropout, and matching patients to suitable medication early has the potential to minimize dropout. The overall objective of this secondary data analysis study is to develop and disseminate individual level risk prediction models using harmonized data collected from three multi-site clinical trials from the CTN, in order to predict specific clinical outcomes (e.g., dropout, relapse) for patients treated with MOUD, including methadone, buprenorphine or extended-release depot naltrexone. The relative importance of predictors in the best predictive models will be estimated, which may facilitate refinement of common data elements for future OUD studies. The comprehensive, harmonized database of treatment data created in this study can be used for future secondary data analysis studies and will provide a replicable data pipeline to process and validate OUD data in future protocols.

The opioid epidemic has increased the demand for a research workforce with the necessary expertise and skills to conceptualize and carry out studies to expand and improve treatment options for opioid use disorders (OUDs). In particular, as the NIDA-funded Clinical Trials Network (CTN) expands the number of nodes and takes on additional studies as part of the HEAL Initiative, the need for an increasing number of staff who are familiar with the CTN research environment is amplified, and opportunities to provide a platform for training new investigators interested in the OUD area are increased. The CTN Research workforce development and dissemination program will provide multi-modal training, including didactic, experiential, and mentoring, to prepare research staff (regulatory personnel, study coordinators, project managers), post-doctoral fellows and faculty from a variety of disciplines (MD, PhD, PharmD, Nurse Practitioners, etc.) to participate in HEAL Initiative studies being conducted within the CTN.