Funded Projects

NOFO Title: PHS 2018-02 Omnibus Solicitation of the NIH, CDC, and FDA for Small Business Innovation Research Grant Applications (Parent SBIR [R43/R44] Clinical Trial Not Allowed)
NOFO Number: PA-18-574
Summary:

There is an unmet need for an effective parenteral/oral analgesic for acute post- operative pain management without the risks of opioid addiction. Salsalate, a dimer or salicylic acid, is currently available in oral dosage for the treatment of osteoarthritis and rheumatoid arthritis. Salsalate works at multiple levels to target multiple steps along the surgical pain pathway. Salsalate through its active metabolite, salicylic acid (SA), reduces NF-?B activation via IKK-kinase beta inhibition, and has no direct binding to cyclooxygenase 1 (Cox-1); therefore, does not affect function of platelets, resulting in a safer hematological and gastrointestinal safety profile. RH Nano proposes a plan for manufacturing and pre- clinical testing of parenteral M-salsalate in two animal models to assess the efficacy and safety in the treatment of acute postoperative pain management. In this proposal, the team will develop the optimal formulation under strict Chemistry Manufacturing and Control guidelines. In Phase II, the team proposes to conduct the pharmacokinetics and toxicology studies of M-salsalate in two species of animals (rodent and non-rodent). Additionally, the project will use an animal pain model for preclinical efficacy studies, and an in vivo Receptor Occupancy assay in animal brain tissues to assess the opioid sparing properties of M-salsalate. 

NOFO Title: HEAL Initiative: Translational Development of Devices to Treat Pain (U18 Clinical Trial Not Allowed)
NOFO Number: RFA-EB-18-003
Summary:

This project aims to develop a next-generation noninvasive neuromodulation system for non-addictive pain treatments. The research team will build an integrated system that uses magnetic resonance image-guided focused ultrasound (MRgFUS) stimulation to target pain regions and circuits in the brain with high precision. The system will use MR imaging to locate three pain targets commonly used in clinical pain treatments, to stimulate those targets with ultrasound, and to monitor responses of nociceptive pain circuits using a functional MRI readout. Three collaborating laboratories will tackle the goals of this project: (Aim 1) Develop focused ultrasound technology for neuromodulation in humans, compatible with the high magnetic fields in an MRI scanner. (Aim 2) Develop MRI technology to find neuromodulation targets, compatible with focused ultrasound transducers. (Aim 3) Validate the complete MRgFUS neuromodulation system in brain pain regions in nonhuman primates. By the end of the project, the research team will have a fully developed and validated MRgFUS system that is ready for pilot clinical trials in pain management.

NOFO Title: Administrative Supplements to Existing NIH Grants and Cooperative Agreements. Parent Grant: HEAL Initiative: Non-addictive Analgesic Therapeutics Development [Small Molecules and Biologics] to Treat Pain (UG3/UH3 Clinical Trial Optional)
NOFO Number: Supplement: PA-20-272; Parent NOFO: NS-21-010
Summary:

Negative allosteric modulators (NAMs) of the metabotropic glutamate (mGlu) receptor, mGlu5, have shown promise for treatment of multiple pain conditions without the serious adverse effects and safety concerns associated with opioids. This project will develop and test a novel series of highly selective mGlu5 NAMs that are structurally unrelated to earlier failed compounds and do not form toxic byproducts as with previous mGlu5 NAMs. A lead candidate is now being characterized in several studies to assess readiness for testing in Phase I clinical studies.

NOFO Title: Optimization of Non-addictive Therapies [Small Molecules and Biologics] to Treat Pain (UG3/UH3 Clinical Trial Not Allowed)
NOFO Number: RFA-NS-19-010
Summary:

An extensive literature provides compelling evidence that selective antagonists or negative allosteric modulators (NAMs) of the metabotropic glutamate (mGlu) receptor, mGlu5, have exciting potential as a novel approach for treatment of multiple pain conditions that could provide sustained antinociceptive activity without the serious adverse effects and abuse liability associated with opioids. Researchers have developed a novel series of highly selective mGlu5 NAMs that are structurally unrelated to previous compounds, have properties for further development, and avoid the formation of toxic metabolites that were associated with previous mGlu5 NAMs. Based on existing preclinical models, as well as clinical trial data showing efficacy of an mGlu5 NAM in migraine patients, researchers anticipate that their compounds will have broad-spectrum analgesic activity in patients with a variety of chronic pain conditions.

NOFO Title: HEAL Initiative: Integrated Approach to Pain and Opioid Use in Hemodialysis Patients: The Hemodialysis Opioid Prescription Effort (HOPE) Consortium - Clinical Centers (U01 Clinical Trial Required)
NOFO Number: RFA-DK-18-030
Summary:

Research on optimal long-term opioid therapy (LTOT) tapering strategies has lagged behind clinical needs. Patients with end-stage renal disease (ESRD) receiving hemodialysis (HD) may be especially vulnerable. This study will adapt the Collaborative Opioid Reassessment Program (CORP) and Cooperative Pain Education and Self-Management (COPES) interventions for patients receiving HD and LTOT and test their effectiveness in a pragmatic sequential multiple assignment randomized trial (SMART) design. Initial randomization will be to compare CORP-supported taper with (CORP-B) and without (CORP) buprenorphine rotation on the six-month composite outcome of LTOT dose reduction and pain response. This design will allow determination of which of the eight adaptive treatment strategies leads to the greatest reduction in six-month opioid dose and pain interference.

NOFO Title: PHS 2016-02 Omnibus Solicitation of the NIH for Small Business Technology Transfer Grant Applications (Parent STTR [R41/R42])
NOFO Number: PA-16-303
Summary:

The ability to de-risk lead compounds during pre-clinical development with advanced “organoid-on-a-chip” technologies shows promise. Development of microphysiological models of the peripheral nervous system is lagging. The technology described herein allows for 3D growth of high-density axonal fiber tracts, resembling peripheral nerve anatomy. The use of structural and functional analyses should mean drug-induced neural toxicity will manifest in these measurements in ways that mimic clinical neuropathology. The goals of this proposal are to establish our human model using relevant physiological measurements in tissues fabricated from human iPS cells and to validate the model system with a library of compounds, comparing against conventional cell culture models. Validating the peripheral nerve model system with drugs known to induce toxicity via a range of mechanisms will demonstrate the ability of the system to predict various classifications of neuropathy, yielding a high-content assay far more informative than traditional in vitro systems.

NOFO Title: HEAL Initiative: Integrated Approach to Pain and Opioid Use in Hemodialysis Patients: The Hemodialysis Opioid Prescription Effort (HOPE) Consortium - Clinical Centers (U01 Clinical Trial Required)
NOFO Number: RFA-DK-18-030
Summary:

In this study, 600 to 700 hemodialysis patients receiving chronic opioids will be randomized across the Hemodialysis Opioid Prescription Effort (HOPE) Consortium to enhanced treatment as usual, buprenorphine therapy, or buprenorphine plus mindfulness-based cognitive therapy intervention delivered by telephone and adapted for pain (MBCT-TP). The following specific aims will be assessed: Aim 1—to assess the effectiveness of buprenorphine in reducing chronic opioid use and prescriptions in hemodialysis patients on opioids at baseline, compared with an enhanced treatment as usual intervention and to assess the effectiveness of buprenorphine in improving pain intensity, quality of life measures, and hospitalizations; Aim 2—to assess the incremental effectiveness of MBCT-TP added to buprenorphine compared with buprenorphine alone on pain interference with physical, social, and mental functioning, opioid use, pain intensity, other quality of life measures, hospitalizations, and mortality.

NOFO Title: Discovery and Validation of Novel Targets for Safe and Effective Pain Treatment (R01 Clinical Trial Not Allowed)
NOFO Number: RFA-NS-18-043
Summary:

Many non-opioid drugs target G Protein-Coupled Receptors (GPCRs), a family of proteins involved in many pathophysiological processes including pain, fail during clinical trials for unknown reasons. A recent study found GPCRs not only function at the surface of nerve cells but also within a cell compartment called the endosome, where their sustained activity drives pain. This study will build upon this finding and test whether the clinical failure of drugs targeting plasma membrane GPCRs is related to their inability to target and engage endomsomal GPCRs (eGPCRs). This study will use stimulus-responsive nanoparticles (NP) to encapsulate non-opioid drugs and selectively target eGPCR dyads to investigate how eGCPRs generate and regulate sustained pain signals in neuronal subcellular compartments. This study will also validate eGCPRs as therapeutic targets for treatment of chronic inflammatory, neuropathic and cancer pain. Using NPs to deliver non-opioid drugs, individually or in combinations, directly into specific compartments in nerve cells could be a potential strategy for new pain therapies.

NOFO Title: Emergency Awards: HEAL Initiative-Early-Stage Discovery of New Pain and Opioid Use Disorder Targets Within the Understudied Druggable Proteome (R21 Clinical Trial Not Allowed)
NOFO Number: TR22-011
Summary:

High-voltage-gated calcium channels convert electrical signals into physiological responses. After a nerve injury, levels of these channels go down in some neurons in the dorsal root ganglia that communicates pain signals to and from the brain. This decline results in reduced flow of calcium that may underlie pain. This project will develop novel approaches to block these calcium channels p to further study their roles in controlling pain.

NOFO Title: Notice of Special Interest to Encourage Eligible NIH HEAL Initiative Awardees to Apply for Administrative Supplements to Promote Training in Clinical Research on Pain (Admin Supp ? Clinical Trial Not Allowed)
NOFO Number: NOT-NS-20-044
Summary:

Exacerbation of health disparities has emerged during the COVID 19 pandemic and highlighted the recognition that minority underrepresentation in clinical research may contribute to racial disparities in health outcomes. In clinical trials related to pain, disparities in trial patient inclusion are documented by white patients often being overrepresented. Mitigating these disparities is an area in which an early-career pain investigator training and contributions may have lasting benefits. The pandemic also drove rapid expansion of telehealth for pain management without knowledge of how social and demographic factors affect utilization patterns of this care delivery model. This supplement supports research to examine the extent to which disparities exist in access to and outcomes of telehealth in socially marginalized pain patients. Findings will be applied to enrich the diversity in clinical trial populations for phase 2 safety trials performed in the HEAL EPPIC Network.

NOFO Title: Notice of Special Interest to Encourage Eligible NIH HEAL Initiative Awardees to Apply for PA-20-222: Research Supplements to Promote Diversity in Health-Related Research (Admin Supp - Clinical Trial Not Allowed)
NOFO Number: NOT-NS-20-107
Summary:

G protein-coupled receptors (GPCRs) are the largest family of transmembrane signaling proteins and play important roles in inflammation and pain. GPCR signaling is fast and temporary, making it hard to measure in clinical studies of potential drugs to interfere with the signaling. This research is using selectively designed nanoparticles to stimulate or block GPCRs toward identifying new treatments for oral cancer pain. This award will use a new nanoformulation approach to understand how nanoparticles affect nerve function by i) testing the effects of continuous release of a GPCR inhibitor in an oral cancer microenvironment and ii) investigating the influence of various physicochemical characteristics of nanoparticles on nerve function in an oral cancer microenvironment.

NOFO Title: Emergency Awards: HEAL Initiative-Early-Stage Discovery of New Pain and Opioid Use Disorder Targets Within the Understudied Druggable Proteome (R21 Clinical Trial Not Allowed)
NOFO Number: TR22-011
Summary:

Routine treatment of pain with prescription opioid medications may evolve into opioid use disorder, addiction, and potentially overdose. New, non-opioid molecular targets for pain are needed as a key element of responding to the opioid and overdose crisis. Ion channels are molecular gateways that convert electrical signals into physiological responses, and many have been implicated in transmitting pain signals. The ion channel Kir6.1/KCNJ8 has been linked to the control of postoperative and cancer pain. Studies in animal models show that low levels of this ion channel are evident after an injury. This research will identify compounds that can open the Kir6.1/KCNJ8 channel as potential treatment strategy for pain.

NOFO Title: Administrative Supplements to Existing NIH Grants and Cooperative Agreements (Parent Admin Supp Clinical Trial Optional)
NOFO Number: PA-18-591
Summary:

The clinical utility of opioids for pain treatment is limited by its risk for developing opioid usage disorders (OUD). These untoward effects impose a severe burden on society and present difficult therapeutic challenges for clinicians. We propose to extend our cerebral organoid MPS to facilitate the investigation of neuronal response to opioids and identify cellular and molecular signatures in patients vulnerable to OUD. We have assembled a team with complementary expertise in clinical characterization of OUD, cerebral organoid MPS modeling, single cell RNA-seq technology, and functional characterization of neurons in a mesolimbic reward system to test the hypothesis that midbrain MPS is a clinically relevant pre-clinical model for study of opioid usage disorder.