The purpose of this study is to evaluate the safety and effectiveness of an experimental drug called human allogeneic mesenchymal stem cell therapy.

Type: Interventional

Start Date: May 2021

open study

This study will compare the effects on cardiorespiratory fitness (CRF) of aerobic exercise in different amounts (number of minutes/session) over different periods of time (number of weeks). Aerobic exercise is physical activity of light-to-moderate intensity that uses the large muscle groups (muscles in your legs, buttocks, back, and chest) and can be performed for at least 10 minutes. The researchers will study the effects of different exercise programs on how well the study participants' bodies use oxygen, how well their heart pumps blood, how well their lungs function, and how healthy their blood vessels are.

Type: Interventional

Start Date: Oct 2020

open study

Background: Blood disorders like sickle cell disease and malaria affect many people around the world. Researchers want to learn more about blood disorders. To do this, they need to collect biological samples from people with blood disorders. They also need to collect samples from healthy people. Objective: To collect samples to use for research on blood disorders. Eligibility: People ages 18-70 who have blood disorders. Healthy volunteers without blood disorders are also needed. Design: Participants will be screened with a medical history, physical exam, and blood and urine tests. Participants will give one or more samples. They will give them over 5 years. They can choose not to give any of the samples: Saliva: Participants will spit into a tube. They may also have the inside of their mouth swabbed. Urine: Participants will urinate into a cup. Blood and blood waste products: Blood will be taken through a needle in the participant s arm. Fat samples: An area on the participant s belly or buttock will be numbed. A small cut will be made into the skin and a small piece of fat removed. Mucus and cells from the lungs: The participant will be sedated. A flexible tube will be inserted through the nose or mouth into the lung airways. These participants will also have a physical exam, chest x-ray, and heart tests after the procedure. ...

Type: Observational

Start Date: Sep 2019

open study

This fully, powered efficacy RCT, the MIND diet for Breast Cancer Cognition (MIND-BC), will evaluate the MIND diet in a rigorous, highly controlled academic cancer center. We will recruit breast cancer survivors reporting CRCI with a MIND diet score < 8, based on a previously devised 14-item diet questionnaire designed to detect inadequate diet with respect to brain health (scores range from 0 to 14, with lower scores indicating a less adequate diet).14 Breast cancer survivors will have recently completed adjuvant treatment (i.e., 6 months to three years previously), to ensure that perceived cognitive impairment is likely chronic and due to cancer. To achieve maximal effect, the study consists of two 12-week phases 1) intervention phase, 2) maintenance phase.

Type: Interventional

Start Date: Jul 2025

open study

Purpose: Conduct a wait-list randomized controlled trial (RCT) of an inclusive physical activity program called PACE for adults with intellectual disability (ID) who are not yet showing signs of Alzheimer's Disease (AD)/age-related dementias (ARD). Participants: Participants include 120 adults with ID, their caregivers, and their coaches (up to 360 individual participants, grouped as triads), recruited through the University of North Carolina at Chapel Hill and the University of Arkansas. Participants also include 16 exercise professionals. Procedures (methods): Each cohort will include 20 triads who are randomly assigned to the PACE program or the waitlist control group.

Type: Interventional

Start Date: Jan 2025

open study

The goal of this study is to learn if a enhanced environment (Metro Café) with multi model approach (an approach that combines several therapies) in chronic traumatic brain injury improves outcomes of recovery better than traditional therapy. The main questions it aims to answer are: - Determine the amount of therapy dosage (speech, cognition, arm and leg movements) obtained during the Metro Café therapy session. - Evaluate the connection between environmental enrichment dosage (the Metro Café) and clinical outcome scores. Researchers will compare Metro Café Treatment to those who do not receive this treatment to see if better improvements in function after a traumatic brain injury are seen in the Metro Café Treatment Participants will train in the Metro Cafe during the 2-month gap between assessments, for a total of 18 training sessions, each up to 2 hours, 3 times per week. Participants will greet and serve customers drinks and snacks, maintain food supplies at the counters and performs housekeeping tasks with advice and assistance from a supervising researcher as needed,

Type: Interventional

Start Date: Apr 2025

open study

Crisis Response Planning is an efficacious, one-session intervention that increases positive affect, decreases negative affect and psychiatric hospitalizations, and reduces suicide attempts by 76% among Servicemembers. Crisis Response Planning is hypothesized to reduce suicidality by identifying a variety of personalized strategies that are designed to strengthen and/or promote emotion regulation processes.Research in nonmilitary samples suggests the effectiveness of emotion regulation strategies varies across situations. The applicability of these findings to suicidality among Servicemembers is unknown. Improved understanding of what strategies work under which circumstances and for whom will significantly advance our ability to prevent suicide among Servicemembers. Hypotheses include: 1. Use of self-management strategies, thinking about reasons for living, and seeking social support at time t will be associated with significant reductions in suicidal ideation at time t+1. 2. Use of distraction, reappraisal, and interpersonal emotion regulation strategies at time t will be associated with significant reductions in suicidal ideation at time t+1. 3. Affect intensity and social context will significantly moderate the time-lagged effects of Crisis Response Planning and emotion regulation strategy use on suicidal ideation. 4. Distinct profiles of demographic (e.g., gender, age), historical (e.g., prior suicide attempts), and psychological characteristics (e.g., emotion dysregulation, symptom severity) will predict who experiences a decrease in suicidal ideation following the use of Crisis Response Planning and emotion regulation strategies. 5. (Exploratory): Individuals who utilize their Crisis Response Planning more frequently and perceive Crisis Response Planning as more effective will be more likely to engage in mental health treatment at follow-up.

Type: Interventional

Start Date: Jan 2022

open study

In a randomized controlled trial (RCT), the investigators will recruit participants to an 8-week "app-based wellness" intervention, followed by a 12-week follow-up period. The investigators will recruit a total of 276 self-declared Chronic Hematological Cancer (CHC) patients who (representative of age, race/ethnicity, and gender) will be on stable CHC pharmacologic therapy (if any), self-identify as sleep disturbed (>5 on Pittsburgh Sleep Quality Index), do not have a sleep disorder diagnosis, do not take sleep medication/supplements >3 times per week, and are not currently practicing regular meditation. Aim 1: Test the efficacy of two app-based wellness programs (10 minutes per day) on the primary outcome of self reported sleep disturbance (Insomnia Severity Index (primary) and PROMIS Sleep Disturbance (secondary)) and secondary sleep outcomes including sleep impairment (PROMIS Sleep Impairment Scale) and sleep efficiency measured via sleep diaries and actigraphy. Aim 2: Test the efficacy of two app-based wellness programs (10 minutes per day) on inflammatory markers (i.e., TNF-a, IL-6, IL-8, CRP), fatigue, and emotional distress (i.e., anxiety, depressive symptoms measured with PROMIS®). Aim 3: Explore the sustained effects (i.e., 20 weeks from baseline) of two app-based wellness programs (10 minutes per day) in CHC patients.

Type: Interventional

Start Date: Feb 2023

open study

This will be a randomized placebo controlled study to test the efficacy of cannabidiol (CBD) as a treatment for symptoms of post-traumatic stress disorder (PTSD). Subjects, 120 in total, will be males and females with PTSD, half of which will have comorbid mild traumatic brain injury (TBI). There will be three study arms, each with 40 subjects: 1) Oral CBD 400 mg daily; 2) Oral CBD 800 mg daily, and 3) Placebo daily. Treatment duration will be 8 weeks. The primary outcome will be change in PTSD symptoms as measured by change in the Clinician-Administered PTSD Scale (CAPS-5) total score.

Type: Interventional

Start Date: May 2021

open study

The purpose of this multi-site research study is to determine if Etanercept, compared to a placebo, significantly reduces the severity of tinnitus (ringing in the ears) associated with history of blast and/or noise exposure or associated with Traumatic Brain Injury (TBI) and/or concussion. Individuals who qualify will be randomized into one of two groups: The group receiving the medication Etanercept or the group receiving a saline solution placebo.

Type: Interventional

Start Date: Jul 2022

open study

The goal of this clinical trial is to develop a five-week virtual cognitive training intervention for people with Mild Cognitive Impairment (MCI) based off an existing eight-week intervention. The main question it aims to answer is: • Is five weeks of training as good as eight weeks in improving cognition, quality of life, daily functioning, and mood, and in reducing caregiver burden? Researchers will compare five weeks of cognitive training to eight weeks of training to see if the shorter version is as effective as the full training. Participants will complete all activities virtually: - Complete a screening visit with a study partner (typically a family member, roommate, or close friend) to determine eligibility to participate in the study - Complete some tests of memory and thinking and some questionnaires - Attend weekly two-hour group cognitive training sessions with a trained group leader, for five or eight weeks - Redo the questionnaires and tests of memory and thinking immediately after completing the training, and three months after completing the training

Type: Interventional

Start Date: May 2026

open study

Extracellular vesicles (EVs) play a role in obesity-induced insulin resistance and likely impact the development of cardiovascular disease. However, little is known on how EVs affect vascular insulin action in people. The purpose of this study is to understand how EVs play a role in type 2 diabetes related cardiovascular disease. This research will also study if exercise can change how EVs impact blood flow and metabolic health. This study will contribute to designing precision medicine to treat/prevent cardiovascular disease in type 2 diabetes.

Type: Interventional

Start Date: Feb 2025

open study

Severe and disabling abdominal pain is common in individuals with chronic pancreatitis. Although pain is associated with reduced quality of life and high economic and societal costs, there are limited effective options for pain management in this population. This study proposes an evidence-based psychological intervention approach using an internet-delivered pain self-management program to minimize the impact of pain and improve quality of life. The ultimate goal is to maximize the public health impact of the intervention with successful implementation and dissemination to pancreas clinics and to the community.

Type: Interventional

Start Date: May 2024

open study

The goal of this combination Type 1 hybrid and observational study is to evaluate the impact of a peer delivered intervention of acceptance and commitment therapy (ACT) + exercise + social support to address the substance (ab)use, violence, and AIDS/HIV (SAVA) to improve medication adherence for women living with HIV (WLWH). This intervention will be implemented by community based organizations that focus on WLWH across four counties. The main question it aims to answer are: - Will peer provision of ACT, exercise, and social support improve medication adherence for WLWH? - Will community based organizations be able to sustain the intervention after research is completed, and what changes will need to be made to sustain the intervention.

Type: Interventional

Start Date: Sep 2024

open study

A placebo-controlled trial in which male and female outpatients with an opioid use disorder who express interest in extended-release injectable naltrexone (XR-NTX) are randomized 1:1 to lofexidine/pregabalin or lofexidine/pregabalin placebo for withdrawal management and offered XR-NTX if after completing withdrawal.

Type: Interventional

Start Date: Jan 2024

open study

The purpose of this study is to develop and test two brief online writing interventions to improve parental acceptance of sexual and gender minority youth (SGMY) in the Southeast United States.

Type: Interventional

Start Date: Nov 2023

open study

The purpose of this study is to develop and evaluate the usefulness of MRI using 129Xe gas for regional assessment of pulmonary function. Specifically, three forms of 129Xe MRI contrast will be the investigators focus - 1) imaging of the 129Xe ventilation distribution, 2) imaging the alveolar microstructure via the 129Xe apparent diffusion coefficient (ADC), and 3) imaging 129Xe that dissolves in the pulmonary blood and tissues upon inhalation. Such imaging of 129Xe gas transfer is expected to be uniquely sensitive to pathologies affecting gas exchange (fibrosis, emphysema, pulmonary hypertension) and provide new insights regarding the normal resting heterogeneity of pulmonary gas exchange.

Type: Interventional

Start Date: Jan 2011

open study

This study will examine the safety of giving the experimental drug, resiniferatoxin (RTX), to treat severe pain in patients with advanced cancer. RTX is a chemical extracted from a cactus-like plant. It is similar to capsaicin, the active ingredient in hot pepper. RTX has relieved pain and reduced the need for pain medication in several animal experiments. It works by destroying nerves that transmit pain information. People at least 18 years of age with severe pain from advanced cancer at or below the level of the chest that cannot be controlled with standard treatments may be eligible for this study. Participants undergo the following procedures: Pretreatment Visit Before beginning treatment with RTX, patients give a medical history and undergo a physical examination that includes: - Electrocardiogram (EKG) - Blood draw - Urinalysis - Neurological examinations - Peak expiratory flow rate (PEFR) - Eye examination - MRI - Urology assessment - Pregnancy test, when appropriate - Questionnaires to collect information on health, personality, mood, pain levels and symptoms. 2-Day Hospitalization Patients are hospitalized for 2 days for RTX injection and monitoring, as follows: - RTX injection: RTX is injected in the operating room under general anesthesia. It is given through a catheter placed in the patient s spine. The catheter is also used to obtain samples of cerebrospinal fluid (CSF) the clear fluid that bathes the spinal cord. The fluid is examined to assess drug effects and side effects, chemical changes in the content of the CSF associated with RTX, and how RTX is handled by the body. - Post-injection monitoring, including: - Surveys about symptoms such as pain or weakness - Neurological examinations - Blood and CSF sampling - EKG - AEs Outpatient followup - Vitals - Blood draw, Urinalysis, neurological and sensory testing, EKG on days 7, 14 and 30 after the injection - MRI scans of the head and back, Urology assessment and PEFR on day 15 after the injection - Eye examination - Follow-up phone calls monthly for 6 months

Type: Interventional

Start Date: Aug 2009

open study

Previous work by the group convinced the researchers to pursue development of focused cognitive reappraisal training as a novel approach to treatment of BPD, either as stand-alone treatment or in concert with evidence-based treatments of BPD. The present proposal aims to refine and test a proposed clinical intervention for BPD patients, training in reappraisal-by-distancing, in terms of its ability to influence hypothesized neural and behavioral targets and, once that is established, to demonstrate its ability improve clinically relevant outcome measures.

Type: Interventional

Start Date: Nov 2024

open study

The goal of this study is to determine how a drug class called glucagon-like peptide-1 receptor agonists (GLP-1Ra) affects people during an early stage of Type 1 Diabetes undergoing clinical teplizumab treatment. This study involves giving participants a liquid meal under different conditions and observing how their bodies respond, focusing on blood sugar levels, insulin effectiveness, and blood vessel function. The meal tests are followed by two post-treatment tests, one with the GLP-1Ra drug and the other with a placebo. Each test involves blood draws before and during the meal test, GLP-1Ra or placebo administration, and an ultrasound to measure blood vessel function. The goal is to see if GLP-1Ra can help manage blood sugar levels and improve cardiovascular health in this population.

Type: Interventional

Start Date: Jun 2024

open study

The 5-year K01 Mentored Research Scientist proposal will employ brain, neurocognitive, and computational tools (e.g., machine learning) to understand the impact of opioid-use disorder (OUD) and common co-occurring issues on executive function and clinical outcomes. There have been record numbers of fatal and non-fatal overdoses (ODs) associated with opioids (and other drugs) in the past 12-months. Improving classification and predictive capabilities to enhance treatment and prevent relapse is of the upmost importance. Deficits in neurocognition often are associated with poor treatment outcomes (e.g., more drug use, medication non-adherence), yet co-occurring issues associated with OUD (e.g., depression, anxiety, physical/sexual abuse, neglect) make it difficult to parse which contributing factors lead to worse executive function (EF) and poorer treatment outcomes. Novel brain, neurocognitive, and computational tools are needed to help determine these differences, in order to lay the foundation for better treatments. This need has shaped both the training plan and the associated research project in a 5-year K01 Mentored Research Scientist proposal, building on Dr. Regier's prior preclinical and clinical addiction neuroscience experience (focused mostly on cocaine-use disorders, cue-reactivity, subcortical networks, prior adversity, and univariate imaging techniques).

Type: Observational

Start Date: Nov 2023

open study

This study aims to test the efficacy of a parent-only approach to treating anxiety disorders in adolescents: SPACE (Supportive Parenting for Anxious Childhood Emotions). The comparator is another parent-based approach, PES (Parent Education and Support). The study design is a randomized controlled trial with 2 treatment arms and 3 assessment points (pre, post, and follow-up) using questionnaire data and clinical interviews.

Type: Interventional

Start Date: Nov 2025

open study

The purpose of the study is to assess participant experience when wearing multifocal contact lenses compared to spherical contact lenses with reading glasses.

Type: Interventional

Start Date: Dec 2025

open study

HQ-HTN-G01 is a prospective, multicenter, single arm, open label, early feasibility study to evaluate initial safety and device design concept of "HyperQureTM RDN System", laparoscopic renal denervation therapy, in patients with resistant hypertension on three(3) or more antihypertensive medications

Type: Interventional

Start Date: Nov 2024

open study

The goal of this observational study is to learn more about how genes impact the risk of pulmonary hypertension. Anyone 18 or older living in the US is eligible, and a diagnosis of PH is NOT required. Study participation is online, and it takes about 20 minutes to complete health surveys and request a saliva collection kit sent through US mail. In return, study participants may opt to receive information about their genetic ancestry at no cost.

Type: Observational

Start Date: Aug 2025

open study