Funded Projects

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.

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.

EPPIC-Net will provide a robust and readily accessible infrastructure for the rapid implementation and performance of high-quality comprehensive studies of patients with well-defined pain conditions, and the rapid design and performance of high-quality Phase 2 clinical trials to test promising novel therapeutics for pain. Using the Hospital of the University of Pennsylvania as a hub and five additional centers that are part of the UPenn Health System and the Children’s Hospital of Philadelphia (CHOP) as spokes, studies will be conducted as designed by the expertise of the EPPIC Network, which intends to bring intense focus to relatively small numbers of patients with clinically well-defined pain conditions and high unmet therapeutic needs. The UPenn Specialized Clinical Center (SCC) will test novel, efficient study designs including adaptive and platform designs, validation studies of biomarkers, and biomarker-informed proof of principle or target engagement studies in Phase 2 trials of interventions from academic and industry partners.

A significant gap exists in understanding of the barriers blocking access to specialized care for children of color who experience headaches, as well as to understand and appreciate the impact of undertreatment on a child’s functional ability and quality of life. Long-term, this research aims to understand these barriers to care and test interventions to remedy disparities. As the first step, this project's primary objective is to identify socioeconomic and clinical factors that lead children experiencing headache to seek care in an emergency department in lieu of outpatient neurology care. The results of this research will help to inform efforts to reduce the negative effects of emergency department overuse in this population and guide them to potentially more appropriate outpatient care.

Urban neighborhood deterioration (also known as blight) can affect individual and community health. Interventions have shown positive effects on neighborhood crime, gun violence, and mental health. In Philadelphia, government and community partnerships have remediated vacant lots and abandoned buildings to improve living conditions. This project will investigate the degree to which neighborhood improvement interventions in Philadelphia affect opioid misuse and overdose risk for residents. Results from this research could inform similar public health-based policy and community-level health interventions in other cities.

Complex regional pain syndrome is a difficult-to-treat chronic condition that causes excess and prolonged pain and inflammation after injury to an arm or leg and includes damage to skin of affected limbs. Although it is known that aberrant immune system function plays a role in this condition, the details remain unclear about how this occurs – in particular, through the adaptive immune system that relies on specialized immune cells and antibodies to protect the body from harm.  This project will study the role of certain immune cells (T cells) that circulate throughout the body or reside in bone using both rat or human bone samples from patients with complex regional pain syndrome.

Most of the 200k Americans who undergo thoracotomy each year receive opiates to reduce postoperative pain because clinicians have few non-addictive, cost-effective choices to control the severe pain patients often experience in the first two weeks after surgery. Managing pain post-thoracotomy is critical to enable patients to take deep breaths and remove (via coughing) lung secretions that otherwise significantly increase risk of pneumonia and collapsed lung, hospital re-admission and morbidity. The most severe pain associated with thoracotomy is transmitted along the intercostal nerves, but no long-term analgesic or nerve block device exists that can provide safe and effective long-term reduction of pain. A reversible, patient-controlled, non- addictive, intercostal nerve block device would reduce suffering due to thoracotomy, broken ribs and herpes zoster. In this Phase I project, the team will develop a minimally invasive thermal nerve block device that can control nerve conduction by gently warming and cooling a short nerve segment between room temperature and warm water temperature. This novel approach is based on the discovery that warm and cool temperature mechanisms of nerve block are different and additive, enabling moderate-temperature nerve block by cycling neural tissues slightly above and below body temperature. Reversible thermal nerve blocks represent a completely new approach to managing pain.  

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.

This study addresses the public health problem of chronic pain as one of the most feared symptoms in people with cancer. Insufficient relief from pharmacological treatments and the fear of side effects are important reasons for the growing use of complementary pain management approaches in people with cancer. One such approach is music therapy. Although efficacy of music therapy for pain has been established, there are no mechanistic studies clarifying how it works in clinical populations. The overarching goals of this study are to 1) examine mediators and moderators hypothesized to account for the pain-reducing effects of interactive music therapy (IMT) in people with advanced cancer and chronic pain and 2) validate IMT’s theory of action. The results of this study will provide estimated effects sizes of IMT on the mediators and preliminary effect size estimates for the pain outcomes. This information will be instrumental in the development of a subsequent large-scale efficacy trial.

This study will refine and test a collaborative care model for patients with opioid use disorder (OUD) and major depression, post-traumatic stress disorder, or an anxiety disorder in primary care. The primary aims of the study are: (1) prototype and test elements of the research team’s collaborative care models; (2) conduct a randomized study of three collaborative care conditions to determine which is most effective in improving outcomes for people with OUD and mental health conditions: Augmented Usual Care, Collaborative Care, or Collaborative Care + Social Worker; (3) measure clinician and organizational-level factors associated with implementation to increase success; (4) conduct a cost evaluation of each collaborative care model; and (5) work with smaller and rural practices to develop and test effective strategies to manage OUD. Successful completion of this study will provide evidence regarding the elements of integrated collaborative care required to maximize outcomes for individuals with OUD and psychiatric disorders.

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.