Funded Projects

There is an urgent need for non-opioid post-operative pain management solutions.  This research is developing a naturally absorbable polymer film that can release controlled amounts of the non-opioid analgesic bupivacaine – aiming to manage pain for several days following surgery. Project objectives are to optimize the timing of drug release, develop manufacturing standards, determine effective dosage for preserving motor function, and determine safety and efficacy in mouse models of neuropathic pain. Continued development of this film delivery system may lead to a new, non-opioid therapeutic strategy that could be combined with local anesthesia for up to 4 days after surgery to reduce or potentially eliminate opioids use.

Chronic focal neuropathic pain, which includes pain etiologies such as radiculopathy and radiculitis, focal peripheral neuropathies, and low back pain, affects as many as 25 million patients annually in the United States. Chronic focal neuropathic pain is maintained by genome-wide transcription regulation in the dorsal root ganglia (DRG) / spinal cord network. The transcription factors driving this regulation constitute a promising class of targets with the potential to alter the course of pain with a single treatment. DNA decoys are oligonucleotides that specifically inhibit the activity of certain transcription factors. AYX2 binds and inhibits Krüppel-like transcription factors (KLF) in the DRG-spinal cord. The goal of this Phase 1 proposal is to advance AYX2 toward an IND submission, allowing for human clinical trials. We propose in Aim 1 to characterize AYX2 pharmacokinetics in the cerebrospinal fluid and plasma and its distribution in the DRG, spinal cord and brain following an IT injection. With this information, AYX2 will be tested in a panel of complementary toxicology studies in Aim 2 to allow for final IND-enabling studies, supported by Phase 2 of the grant. This research will accelerate development of AYX2 as a novel drug candidate for the non-opioid treatment of pain.

One of the most widely used treatments for chronic pain is opioid analgesics. Importantly, there is evidence of a pathological interaction between opioids and the immune system that can contribute to both opioid tolerance and elevated levels of pain. Chronic pain conditions for which opioids are most often prescribed have been shown to involve dysregulation of the immune system, which may contribute to pathological effects of opioid use in these patients. To address this unmet need, this study aims to develop a reliable, cost-effective, and non-invasive in vitro diagnostic assay for chronic pain with an underlying inflammatory pathology, as a blood test available in primary care settings, with the hope that doctors can use the test to identify which patients might benefit less from opioids and be more likely to become addicted.

As prescription opioid drug abuse and overdose-related deaths continue to skyrocket in the United States, the need for new and more effective non-addictive pain drugs to treat chronic pain remains critical. This research is conducting studies in animal models of a small molecule that has high potential to treat chronic pain conditions associated with neuropathy and/or inflammation. The goal of this project is to conduct dosing and other studies leading up to an animal model study of the potential drug in a toxicology study for 28 days. Results may lead to Investigative New Drug regulatory clearance to begin clinical studies to validate the potential drug’s efficacy and safety.

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.

Rescue of victims of opioid overdose is accomplished by treatment with antagonist drugs, such as naloxone, that can reverse the respiratory depression. However, naloxone has serious liver toxicity and a short half-life, and its complete antagonism results in a withdrawal effect. Nalmefene is an FDA-approved opioid derivative that is an antagonist of the MOR and a weak agonist of the k-opioid receptors (KOR). An immediate release intravenous injectable formulation was approved by the FDA in 1995 for opioid overdose; however, the requirement for intravenous administration has limited its clinical use. This project, in partnership with Avior, aims to develop a fast-onset, rapidly-dissolving, mucoadhesive thin film formulation that carries uniformly distributed nalmefene nanoparticles on the surface of the film. This film, produced using Avior’s proprietary Speedit™ transmucosal drug delivery technology, rapidly delivers nalmefene when the film is placed in contact with the lower lining of the inner lip. This project will generate non-clinical data to support critical human clinical trials to determine if a transmucosal film can be developed with a rapid onset of action that is required for rescue of opioid overdose patients or taken prophylactically to prevent respiratory depression, to assess whether the effective speed of delivery is sufficient to conduct a human clinical trial.

Rates of neonatal abstinence syndrome (NAS) have skyrocketed during the last decade, and estimates suggest that 5% of mothers use at least one addictive drug during their pregnancy. To address this public health crisis, multiple groups—including the American College of Obstetricians and Gynecologists and the American Academy of Pediatrics—recommend universal screening of substance use in pregnancy using standardized behavioral scoring tools. Unfortunately, such tools are often biased due to subjective scoring or self-reporting errors, and fail to identify babies who did not receive proper prenatal care. This project will develop a fast and accurate NAS screening tool that pairs a simple sample preparation protocol with a high-sensitivity panel of homogeneous enzyme immunoassays recognizing five common classes of drugs: fentanyl, morphine, amphetamine/methamphetamine, cocaine, and benzodiazepines. The potential benefits of such a system include reduced length of hospitalization for unaffected newborns, accelerated time to confirmatory results (under 2 hours), faster resolution of acute withdrawal symptoms, and improved referral to family/maternal support services.

Newborn Abstinence Syndrome, which results from maternal opioid drug use prior to birth, is a serious condition that affects approximately 6% of all neonates born today in the U.S. and which is increasing rapidly in incidence because of this epidemic. Availability of a rapid screening test that can be administered at the point of care to all neonates would allow for early intervention, reducing costs of treatment and reducing pain and suffering for this vulnerable and helpless patient population. Providing a platform to accurately monitor actual levels of these drugs and their metabolites in such patients would allow better-controlled use of these pain management treatments, personalized to the needs of the individual neonate, and would reduce the probability of addiction and resulting complications, which include deleterious neurological effects. The purpose of this FastTrack SBIR project is to expand upon preliminary results that a device can sensitively and accurately detect opioids and their primary urinary metabolites in one-microliter urine samples, in less than a minute after sample introduction into the device, and adapt the device into a point-of-care instrument for use in hospitals, clinics, and other venues in which such tests are likely to be deployed.

A critical line of defense against opioid use disorder (OUD), one of the nation’s leading preventable causes of death, must be standardized screening provided by the patient’s primary care physician, psychiatrist, and/or counselor. Standardized screening methods for opioids, however, are simply inferior and no gold standards exist. This project aims to develop a validated, theoretically guided tool that provides clinicians with information beyond OUD symptoms using reinforcer pathology, a measure of severity derived from the synergy between excessive delay discounting and high behavioral economic demand. The Behavioral Economic Screening Tool (BEST-OUD) will use these combined measures in a mobile tablet application to enable clinicians to screen for OUD.

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.

Current drug-screening immunoassays use benchtop analyzers that require experienced personnel, time, and a laboratory setup. Physicians without access to in-house testing have to send out patient samples for screening, resulting in unacceptable delays in the treatment of patients who are potentially suffering from chronic pain. This project, a partnership with BreviTest Technologies, LLC, aims to develop a low-cost, point-of-care (POC) urine drug testing (UDT) device to detect opioids. The goal is for a portable platform to deliver quantitative performance similar to a standard laboratory test for opioids within a 10-minute run time. If successful, this will provide a technology capable of performing rapid quantifications of urine drug levels in a physician’s office, providing an invaluable tool to render more effective pain management dosing to patients, thus paving the way toward lower toxicity and a better quality of life.