Funded Projects

The primary goal of the PRECISION Human Pain network and its participating centers is to generate comprehensive datasets of molecular signatures and cellular function phenotypes or signatures of various cell types that underlie transmission and processing of pain signals in humans. To maximize the impact of the data generated through this effort, it is vital to standardize and integrate all data generated by the various centers and make these data available in a meaningful way to the larger scientific community. As the Data Coordination and Integration Center, this project will support the network to curate, harmonize, and effectively integrate center-generated datasets as well as provide operational support for the network and conduct educational and outreach efforts.

The adverse effects of morphine and other mu-opioid receptor (MOR) agonists are linked to the ?-arrestin pathway, while analgesia is tied to the G-protein pathway. Pathway specific or “biased” drug development can target G-protein specific agonists that avoid the negative consequences of ?-arrestin signaling activation and produce analgesia. Highly “biased” MOR agonists have promise as effective analgesics but devoid of opioid-induced adverse effects. Preclinical studies compared two compounds, MEB-1166 and MEB-1170, against Oliceridine and morphine. Both compounds displayed no respiratory depression, even at high doses, while morphine and Oliceridine significantly reduced respiratory function. In contrast to morphine, neither MEB-1166 nor MEB-1170 produced conditioned place preference, suggesting an absence of abuse liability. This study will characterize the pharmaceutical and pharmacological profiles and perform liability studies for these compounds.

The HEALthy Brain and Child Development National Consortium (HBCD-NC) will establish a normative model of developmental trajectories over the first 10 years of life. All sites in the HBCD-NC will carry out a common research protocol and will assemble and distribute a comprehensive research dataset to the scientific community. The HBCD-NC will collect neural, behavioral, physiological, and psychological measures, as well as biospecimens, to characterize neurodevelopmental trajectories. Most participants will be recruited in the second trimester of pregnancy, with a smaller subset recruited at birth, and followed for the first 10 years of life. This study will be based out of the Children’s Hospital of Philadelphia and the University of Pennsylvania and will represent an urban population with a wide socioeconomic status range.

Neonatal Opioid Withdrawal Syndrome (NOWS) is a condition that occurs when newborns are exposed to opioids during pregnancy. Symptoms often include tremors, excessive crying, sleep deprivation, and swallowing difficulties. Cases are rising, with a newborn affected by NOWS approximately every 15 minutes. Currently, healthcare providers in the United States lack standard, evidence-based treatments for NOWS. 

This project is part of a multi-center, randomized controlled clinical trial that directly compares NOWS treatments—morphine, methadone, and buprenorphine—and takes into account other types of non-drug therapies, such as behavioral interventions. The goal is to generate results that can inform clinical practice guidelines and give newborns with NOWS the best start possible. 

Thomas Jefferson University has more than 40 years of experience optimizing approaches to the care of opioid use disorder in pregnancy and conducts clinical research on NOWS treatments. The hospital provides a robust continuum of care that supports women with opioid use disorders before, during, and after delivery. This supportive culture has resulted in a relatively high rate of clinical trial participation that will enable long-term follow up of mothers and infants.

Neonatal Opioid Withdrawal Syndrome (NOWS) is a condition that occurs when newborns are exposed to opioids during pregnancy. Symptoms often include tremors, excessive crying, sleep deprivation, and swallowing difficulties. Cases are rising, with a newborn affected by NOWS approximately every 15 minutes. Currently, healthcare providers in the United States lack standard, evidence-based treatments for NOWS. 

This project is part of a multi-center, randomized controlled clinical trial that directly compares NOWS treatments—morphine, methadone, and buprenorphine—and takes into account other types of non-drug therapies, such as behavioral interventions. The goal is to generate results that can inform clinical practice guidelines and give newborns with NOWS the best start possible. 

This site includes newborn nurseries and intensive care nurseries at 4 large
maternity centers across the Children’s Hospital of Philadelphia (CHOP) Newborn Care Network, each with a dedicated follow-up clinic, ensuring access to a large and diverse patient population for long-term study. CHOP also has a long history of successfully conducting multi-center clinical studies.

Spinal cord injury (SCI) impairs sensory transmission and leads to chronic, debilitating neuropathic pain. While our understanding of the development of chronic pain has improved, the available therapeutics provide limited relief. We will examine the peripheral immune and inflammatory response. Secondary inflammation in response to SCI is a series of temporally ordered events: an acute, transient upregulation of chemokines, followed by the recruitment of monocytes/macrophages and generation of an inflammatory environment at the lesion site in the spinal cord, but also surrounding primary nociceptors in the dorsal root ganglia (DRG). These events precede neuropathic pain development. Previous work indicates that after SCI, macrophage presence in the DRG correlates with neuropathic pain. We propose to study: 1) whether the phenotype of macrophages that infiltrate the DRG is different than those that persist chronically after SCI and 2) how manipulation of macrophage phenotype affects nociceptor activity and pain development.

Although approximately 80% of people with opioid use disorder smoke cigarettes, tobacco use is rarely addressed in treatment of opioid use disorder. Moreover, smoking cessation interventions that are effective in the general population have been minimally effective among people with opioid use disorder. This project will integrate into methadone treatment programs the Mindfulness-Oriented Recovery Enhancement intervention and motivational interviewing to address use of tobacco and other drugs. This research will determine the value of this intervention compared to attending a support group or receiving motivational interviewing. The project will also examine use of tobacco, opioids, and other drugs, and whether people begin treatment. The research will also study implementation barriers and facilitators to the mindfulness-based approach as well as strategies to enhance its adoption into clinical practice.

MAT is the most effective intervention for opioid use disorder (OUD), and methadone maintenance treatment (MMT) is the most commonly prescribed MAT; however, approximately half of people who begin MMT discontinue within a year, and half of people retained in MMT have an opioid relapse within six months. Chronic pain, affecting most people on MMT, could be contributing to relapse in this group. Novel behavioral interventions that address both chronic pain and opioid relapse among people on MAT are needed. Mindfulness Oriented Recovery Enhancement (MORE) was recently developed to treat both pain and opioid misuse. MORE is a group intervention that combines training in mindfulness, cognitive reappraisal, and positive emotion regulation skills to target the dysfunctional cognitive, affective, and behavioral pathways that lead to opioid use relapse. The objective of this proposal is to examine the impact of MORE on opioid relapse and chronic pain among individuals receiving MMT.

This project will study the harmful effects of illicit and prescription opioid use during pregnancy and its consequences on the mother, fetus, and placenta. The research will integrate multiple different technologies to study molecular changes in biospecimens taken from research participants. Samples to be collected at birth and characterized include plasma and urine from the mother across the three trimesters of pregnancy, tissue samples of the placenta, and fetal cord blood. This research aims to shed new light on the underlying biology of opioid exposure on the placenta during pregnancy toward development of early interventions during opioid-exposed pregnancies. 

This project will enhance the measurement, quality, and equity of care delivered in 20 community opioid treatment programs in Pennsylvania by co-designing and implementing measurement-based care tools and systems. The research will inform future use of measurement-based care for opioid treatment in partnership with key stakeholders, as well as explore alternative avenues improving health outcomes, including helping patients remain in treatment.

One novel approach to address the opioid crisis is predicting the likelihood of retention in treatment for opioid use disorder (OUD) by assessing someone?s risk of early departure from treatment. Current methods rely on providers intuition to identify when an individual is at risk of leaving treatment early in order to intervene. This intervention, when it happens, often comes too late. Mobile health (mHealth) and Machine Learning (ML) predictive analytics offer a new opportunity to personalize OUD treatment, improve retention in OUD care, and mitigate the risk of relapse and overdose episodes. Project Motivate will combine physiological and behavioral data from disparate sources in order to predict when an individual is at risk of early departure from OUD treatment. If successful, results of the study will save lives, and lower medical costs, municipal emergency response costs, recidivism, workplace accidents, lost workplace productivity and costs to families.

Medications have proven to be effective for treating opioid use disorder (OUD). Increasing accessibility to buprenorphine provides an opportunity for many with OUD to benefit from its proven effectiveness. Adherence to medication-based treatments however is low, in part because of the stigma associated with use of this and other effective drugs and as such, leads to inadequate treatment and poor outcomes. This study aims to understand the effects of stigma on patient engagement, retention, and outcomes of buprenorphine treatment. Knowledge drawn from the HIV Stigma Theory and tools developed to reduce HIV associated stigma will be used to assess OUD stigma and to develop interventions to reduce it in the context of buprenorphine treatment. The study findings may provide resources to address stigma and thus maximize treatment adherence among those affected by OUD.