Funded Projects

The need to develop non-opioid therapeutics for chronic pain is greater than ever.  One option being explored is inhibiting the activity of calpains – enzymes that have been shown to cause pain in animal models of chronic pain.  Using an artificial intelligence (AI)-driven drug discovery platform, researchers have uncovered and validated four calpain-1 inhibitors using biochemical assays.  This study by 1910 Genetics Inc. hopes to synthesize multiple analogs of its most potent discovered calpain-1 inhibitor and determine its effectiveness against calpain-2 and certain enzymes that break down proteins.  Findings that successfully significantly inhibit calpain-1 in at least one animal model of chronic pain could lead to the first oral, central nervous system penetrating selective calpain-1 inhibitor [non-opioid therapeutic] for chronic pain.

Although there are effective prevention and treatment programs and services to address opioid misuse, opioid use disorder, and overdose, gaps remain between those needing and those receiving prevention and treatment. There is a need to better understand how to make these programs and services most effective at a local level, a problem being addressed by the HEALing Communities Study. This project supports a scientist from a group underrepresented in biomedicine to continue ongoing work to test the impact of an integrated set of evidence-based practices across health care, behavioral health, justice, and other community-based settings.

With the entwined crises of opioid use and chronic pain, there is a need for alternative, safe therapies to manage opioid use disorder, opioid withdrawal symptoms, chronic pain, and/or associated anxiety and depression. A proof-of-concept preclinical study has already been conducted of a cannabinoid-opioid combination that demonstrated opioid-sparing and synergistic analgesic effects, with the combination providing greater analgesia in a rodent model of chronic pain than a standard dose of the opioid alone. This proposal aims to develop a fixed-dose combination (FDC) of the cannabinoid-opioid that may have improved analgesia with lower opioid doses and thereby lower the risk of dependence, withdrawal, diversion, abuse, and overdose. Preclinical pharmacokinetic and ?in vivo ?safety studies will help determine if co-administration alters the pharmacokinetics and/or respiratory depression related to either compound in rodents.

There is a compelling need to develop a front line, non-opioid-based acute pain management strategy for outpatient oral surgical procedures. LaunchPad Medical has developed Tetranite® (TN), a novel bone regenerative mineral-organic self-setting adhesive biomaterial. TN has been extensively studied in vivo in a canine jaw model and shown to be effective and well-tolerated. In this project, researchers will demonstrate that drug-loaded TN can be a novel route to providing localized and time release pain medication following wisdom tooth extraction by determining the release profile of various pain medications from TN at different concentrations. The ability to release pain therapeutics in a controlled fashion and directly at the site of injury offers improved pain control following oral surgical procedures without exposing the patient to opioids. This novel approach to pain management can be extended to more invasive orthopedic procedures such as joint replacement, spinal fusions or reconstructive trauma surgery. In Phase II the team will conduct an in vivo study to assess efficacy of medicated TN to address post-operative pain following wisdom tooth odontectomy, optimize incorporation and release of medications in TN formulations, develop cGMP manufacturing process for the compounded product, and ultimately conduct clinical trials for bone void filler using medicated TN.

While patient self-report of pain is the gold standard of pain measurement, this may not be feasible in critically ill patients who are sedated and intubated, unconscious, or unable to verbally communicate. Pupillary dilation (PD) is a reliable indicator of acute pain, and measurement of pupil size changes may be useful in determining the intensity of pain experienced as well as the efficacy of an analgesia. Research also demonstrates that pupillary unrest under ambient light (PUAL) is an objective marker of sensitivity to opioids, and facial expression analysis can help detect pain. Benten Technologies, Inc. aims to develop and validate IMPACT, a device that uses pupillometry with a proprietary algorithm to measure both PD and PUAL and conduct facial expression analysis using computer vision. The project team will then demonstrate the feasibility of IMPACT in helping clinicians objectively determine pain and assess opioid efficacy and compare results obtained to pain scores reported by patients.

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.

Millions of Americans undergo surgery each year, with fewer than half of patients reporting adequate postoperative pain relief and approximately 75 percent reporting moderate to severe postoperative pain. Gaps in postoperative pain management that lead to the unnecessary introduction and over-prescription of opioids continue to exacerbate the opioid crisis, but virtual reality (VR) has been demonstrated to be an effective strategy for pain management. This project will enhance and improve the functionality of a VR-based technology, AppliedVR, to provide acute perioperative pain management through a new software-based VR medical device, RelieVRx™. As a non-opioid alternative intended to reduce postoperative pain, RelieVRx can potentially reduce the need for and utilization of opioids in the postoperative setting.

While effective treatments exist for substance use disorders, adhering to treatment and retaining patients in treatment can be a challenge. The objectives of this project are to facilitate the implementation of loyalty/reward-based programs to increase adherence to medical treatment among patients with substance use disorders through innovative solutions to common challenges. Building on experience developing software to promote patient appointment attendance, the project will build a new tool to test on a sample of 10 providers and 10 patients who are prescribed but not fully adherent to substance use disorder treatment. Patients will receive tailored text messages (in English or Spanish) encouraging adherence, self-report their treatment adherence (which will be verified through smart pill caps and biological testing), earn points for adherence that can be exchanged for rewards customized for them based on a baseline survey, and report their satisfaction with the program and process at the end of the 4-week study. This pilot will assess the feasibility and perceived usefulness of the product in support of eventual larger-scale testing in a clinical trial.

Opioid agonist therapy (OAT), such as buprenorphine/naloxone (BUP/NAL), is proven effective against opioid use disorder (OUD), but poor medication adherence is a major barrier. This project aims to substantially increase adherence to oral BUP/NAL with Pillsy, a smart technology platform, which acts like a digital medication coach, providing education and reminders using a mobile app, text messages, and automated phone calls. The platform is built around a Bluetooth-based smart pill bottle cap that automatically tracks doses and timing, and sends intelligent reminders to create a unique feedback loop, which allows constant optimization of the incentive/reminder messages to meet user needs to increase adherence. A dashboard enables providers to easily track medication use and patient engagement. The Pillsy platform only nominally increases the cost of oral BUP/NAL treatment, and physicians can bill for monitoring time (CPT code 99091). The project team will adapt the current Pillsy platform and perform a randomized efficacy trial of BUP/NAL adherence.

Pain is one of the most common and debilitating symptoms of a wide range of injuries and diseases. Safe and effective alternatives for treating pain that reduce dependence on opioids are, therefore, a primary goal of the NIH. This project proposes a non-invasive, non-pharmacological alternative to treat pain by combining an innovative electroencephalography (EEG)-based Neurofeedback (NF) solution in an immersive virtual reality (VR) environment. NF and VR have been shown to independently produce ameliorative effects on pain, and it is hypothesized that an NF training in VR would have synergistic effects, as VR would distract from pain perception to improve patient compliance in more engaging NF protocols that improve their ability to control pain perception. In the scope of this project, we will initially focus our work on chronic low back pain (cLBP), as this is a growing segment of chronic pain sufferers with a 39 percent worldwide lifetime prevalence, and whose sufferers have historically been heavy users of opiates; later stages of this project will expand this application to address other forms of pain.

 Chronic persistent post-operative pain (CPOP) is a devastating outcome from any type of surgical procedure. Its incidence is anywhere between 20-85% depending on the type of surgery, with thoracotomies showing one of the highest annual incidences of 30-60%. Given that millions of patients (approximately 23 million yearly based on incidence) are affected by CPOP, the results are increased direct medical costs, increased indirect medical costs due to decreased productivity, and associated negative effects on an individual’s physical functioning, psychological state, and quality of life. Given these extensive public health and economic consequences there is a resurgence of research in the area of preventative analgesia.  The goal of this project is to evaluate a novel small molecule antagonist of MD2-TLR4, DT-001 in preclinical models of surgical pain representative of persistent post-operative pain. In collaboration with University of California, San Diego, DT-001 will be evaluated for its ability to block the development of neuropathic pain states. These studies will evaluate dose escalating efficacy of DT001 in rats in formalin and spinal nerve injury (SNI) models using both intrathecal and intravenous routes of administration. Tissues will be preserved to assess functional effects on relevant pain centers for analysis by Raft. With demonstration of efficacy, these studies will determine the optimal dose and route of administration of DT001 and guide a development path to IND and eventually clinical trials.

Noninvasive brain stimulation (NIBS) may be effective in treating some forms of addiction, but the most common NIBS methods, Transcranial Magnetic Stimulation (TMS) and Transcranial Direct Current Stimulation (tDCS), have not been found to be effective in treating opioid use disorder (OUD). This project seeks to test the efficacy in OUD patients of Electrosonic Stimulation (ESStim™), an improved NIBS modality that combines independently controlled electromagnetic and ultrasonic fields to focus and boost stimulation currents via tuned electromechanical coupling in neural tissue.