Clinical Research Directory

VK4-116 Phase I Study With Food-Effect

This first-in-human, randomized, double-blind, placebo-controlled, single ascending dose (SAD), phase I study is designed to assess the safety, tolerability and pharmacokinetics of VK4-116 in healthy volunteers in fasted and fed state.

Sparrow Link Neuromodulation Device for Opioid Withdrawal Management in Hospitalized Adults With Opioid Use Disorder

This study is evaluating the Sparrow Link, a wearable device that delivers gentle electrical signals to nerves in the outer ear (a technique known as transcutaneous auricular neurostimulation, or tAN). The goal is to assess whether the device is feasible to use, acceptable to patients, and may help reduce opioid withdrawal symptoms in hospitalized adults being treated for opioid use disorder (OUD). Participants will be randomly assigned to receive either the active device or a sham (inactive) version. Neither participants nor their clinical teams will know which version is used. All participants will continue receiving standard hospital care for opioid withdrawal. Researchers will collect information on how long participants use the device, whether they stop using it early, and changes in withdrawal severity. The study will also examine pain, craving, mood, anxiety, heart rate variability, and opioid use during hospitalization.

Mapping Ibogaine Neural Dynamics in Opioid Use Disorder

This study aims to understand how ibogaine treatment may change brain activity and symptoms in people with moderate-severe opioid use disorder (OUD), as defined by the DSM-5. Ibogaine is a plant-derived compound that some studies suggest can reduce opioid cravings and withdrawal. Participants in this study will already be independently scheduled to receive legal ibogaine treatment at a licensed clinic outside of the U.S. The University of California, Irvine (UCI) research team will not provide the treatment but will conduct brain imaging, administer psychometric questionnaires, and obtain urine samples throughout the course of this study. The main goal is to see if ibogaine changes brain function as assessed with magnetic resonance imaging (MRI), magnetic resonance spectroscopy (MRS), and electroencephalography (EEG). MRI/MRS will measure brain activity when participants view opioid-related images, brain connectivity at rest, and levels of brain chemicals involved in craving and substance use. EEG will measure brain wave activity. MRI/MRS/EEG will be administered across 3 study time points. In addition, participants will complete psychometric surveys related to opioid craving, withdrawal symptoms, mood, anxiety, pain, and quality of life, along with urine tests to monitor substance use and screen for pregnancy. The investigators hypothesize that after ibogaine treatment, participants will show reduced brain responses to opioid cues, changes in brain connectivity and chemistry, and improvements in self-reported cravings and other symptoms. This information may help researchers better understand how ibogaine works in the brain and whether it could play a role in future treatments for OUD.

Developing and Testing Innovative Care Pathways for Screening and Treatment of OUD/PTSD in Jails

Opioid overdose is the leading cause of death among people recently released from incarceration. Recent evidence also shows a rise in stimulant use among justice-involved populations, as well as growing rates of concurrent opioid and stimulant use. Yet, while there is growing research on opioid use disorder (OUD), stimulant use disorder (STUD), and substance use treatment in jails and prisons, studies find that few people who are referred to community substance use treatment actually initiate treatment after release. But, emerging research suggests that therapy for posttraumatic stress disorder (PTSD), a common and deleterious OUD and STUD comorbidity, could profoundly increase the likelihood of engagement with substance use treatment; however, this has not been tested in jails, and acceptable, appropriate, and feasible ways to identify and link people with probable PTSD and OUD/STUD in this setting to treatment are required to be able to examine this possibility. Therefore, this 4-year R33 aims to 1) describe engagement in and examine the implementation outcomes of an innovative approach to identifying and referring people with probable PTSD and OUD/STUD to needed treatment services and 2) the effectiveness and implementation outcomes of two competing models of subsequent trauma-focused therapy initiation timing (i.e., immediate initiation of therapy vs initiation upon community reentry) among people who demonstrate need for OUD/STUD services and who accept referral. To address Aim 1, the investigators will assess the implementation context for and subsequently implement a screening, brief intervention, and referral to treatment model that was adapted to identify and address the substance use and mental health needs of adults with probable PTSD and OUD/STUD in the jail setting (SBIRT-J) in the Pulaski County Regional Detention Facility; the investigators will describe engagement in and examine the implementation outcomes of the SBIRT-J model via a summative evaluation guided by the Consolidated Framework for Implementation Research. Specifically, there will be a survey and interview jail stakeholders (e.g., jail leadership, officers) to understand perceptions of the acceptability, appropriateness, and feasibility of the SBIRT-J model as well as SBIRT-J implementation determinants (i.e., barriers and facilitators), and use administrative data to understand the degree to which SBIRT-J is adopted during active enrollment in the R33 Aim 2 research trial and sustained in the 6 months after enrollment end. Fidelity to the SBIRT-J model will also be monitored and reported. To address Aim 2, the investigators will conduct a patient-randomized Hybrid type I implementation-effectiveness trial in which adults who are identified as having probable PTSD and OUD/STUD through the SBIRT-J model and who consent to participate in the trial are randomly assigned to either immediate initiation of therapy for PTSD in jail or initiation of PTSD therapy upon release. The primary effectiveness outcome will be post-release substance use treatment initiation by 6-months post-release from jail; secondary and exploratory outcomes will include substance use treatment readiness and retention, OUD/STUD severity, PTSD symptoms, victimization, overdose, and additional drug use. Participants in the effectiveness portion of the trial (N = 338; \~50% female) will be enrolled from the largest jail in Arkansas. Jail stakeholders will also be enrolled to provide implementation-related data. The overall goal is to translate research to practice to increase the provision of high-quality care for justice-involved persons with probable PTSD and OUD/STUD. Indeed, this study will be the first trial of a treatment for PTSD in jails as a method for improving OUD/STUD outcomes, providing foundational information on PTSD as a novel intervention target for meeting the needs of a particularly vulnerable population and providing the implementation data to inform rapid scale-up, if effective.

Opioid Adherence and Support Through Innovative Texting Strategies

The goal of this clinical trial is to examine the effects of reminder and mindfulness text messages on medication adherence and managing craving, pain, and withdrawal symptoms in people taking medications for opioid use disorder through assessment questions collected twice daily during the course of treatment. The main questions it aims to answer are: 1. Do daily medication reminder text messages increase medication adherence for people taking medications for opioid use disorder? 2. To what extent do people engage with the daily mindfulness messages? 3. What impact does daily mindfulness text message quantity have on craving, pain, forgetfulness, and withdrawal symptoms? Participants will: 1. Receive daily medication reminder text messages for at least 24 weeks (i.e., 6 months) 2. Receive up to 6 mindfulness messages per day for 4 weeks (i.e., 1 month) 3. Answer daily questions twice a day during the 4 weeks of mindfulness messages 4. Answer questions about the study when enrolling, at the end of the 4 weeks of mindfulness messages, and at 4 and 16 weeks after the end of the mindfulness messages

Autonomous Methadone Delivery System by Nurses

Initiations of methadone treatment for opiode use disorder (OUD) are carried out in France in specialized centers, known as centers for care, support and prevention in addictology (CSAPA) In this way, hospital practitioners initiate the prescription of methadone, which is delivered on the spot by the nursing team. CSAPA nurses, and addictology nurses more generally, have a real range of skills which can include adapting treatment doses according to a protocol pre-established in a team, and medically validated (French law no. 2019-774 of July 24, 2019 relating to the organization and transformation of the healthcare system). The methadone speciality used for initiation in CSAPAs is almost always the syrup form. The capsule form can only be used after one year's treatment, unless exceptionally authorized by the medical officer of the French National Health Insurance Fund. However, regulations stipulate that the prescription of methadone syrup must be renewed every fourteen days, which in theory means that a CSAPA doctor must see the patient at least twice a month to renew the prescription, throughout the entire course of treatment. In practice, medical resources are often not sufficient for patients to be seen by a doctor at such a rate. Numerous palliative organizations exist, though they remain poorly described and documented. In some centers, doctors focus primarily on initiations, and prescriptions for patients for whom "stability" has been achieved are sometimes renewed for longer periods than fourteen days, with nurses in charge of assessing whether this organization is suitable for the patient. The notion of stability varies significantly from one center to another, and may mean achieving a constant dose, stopping illicit opioid use, or other criteria more focused on the patient's psychosocial reintegration. By outlining the missions of Addictology nurses, and more specifically of CSAPA nurses, the investigators can define the essential skills required of nurses to carry out these missions. The main hypothesis of the DIADEME study is that semi-autonomous management of methadone treatment initiation by CSAPA nursing teams helps to reinforce adherence to care and thus improve retention rates in the 3 months following initiation.

Optimizing Retention, Duration and Discontinuation Strategies for Opioid Use Disorder Pharmacotherapy (RDD)

This is a two phase study investigating combinations of pharmacological and behavioral interventions to optimize the treatment of Opioid Use Disorder (OUD). The Retention Phase will assess strategies for improving retention on buprenorphine (BUP) and extended-release injectable naltrexone (XR-NTX). The Discontinuation Phase will assess which approaches are most likely to lead to long-term success (absence of relapse), and what characteristics of participants distinguish those who can safely discontinue Medications for Opioid Use Disorder (MOUD) from those who remain at risk of relapse and should not discontinue.

Adjunctive Cannabidiol for Recovery From Opioid Study

The long-term goal of the project is to determine whether cannabidiol (CBD) can reduce craving and relapse in individuals with opioid use disorder (OUD). The first phase of this project was an open cross-over design study in healthy individuals to confirm the safety and pharmacokinetic (PK) effects of CBD (BSPG CBD; Brains Bioceutical). The second phase was a double-blinded randomized controlled trial to determine whether CBD reduces craving and anxiety in individuals with OUD maintained on opioid agonist therapy. This phase 3 trial will determine whether CBD can serve as a potential adjunct treatment to reduce illicit opioid use in individuals with OUD maintained on opioid agonist therapy.

Individualized Adaptive Deep Brain Stimulation in Opioid Use Disorder

The purpose of this study is to determine if personalized (adaptive) Deep Brain Stimulation (DBS) based upon invasive brain mapping is safe and can lead to better outcomes like reductions in craving and opioid use.

MethaLoad Dose-Finding Study

The goal of this study is to develop a loading dose approach to starting methadone to treat opioid use disorder with fentanyl use ("fentanyl OUD", herein). This study is a participant- and assessor- blinded dose-finding study using the Bayesian optimal interval (BOIN) design. Investigators aim to recruit n=24 participants with fentanyl OUD to a research unit for monitored methadone initiation. Participants will be randomized to standard initiation vs. loading dose initiation at one of four doses.

Contingency Management for Opioid Use Disorder in Inpatients at Assiut University Hospital

A scientific study to design and implement a contingency management (CM) program, and to evaluate its effectiveness in promoting abstinence and treatment adherence among individuals with opioid use disorder, as well as to explore its potential for broader implementation in clinical settings.

HEALing Communities Study

This study will test the impact of implementing the Communities That Helping to End Addiction Long-term (HEAL) intervention on opioid overdose deaths within 67 highly affected communities with the goal of reducing opioid overdose deaths by 40%.