The COSMID (Comparison of Surgery and Medicine on the Impact of Diverticulitis) trial is a pragmatic, patient-level randomized superiority trial of elective colectomy vs. best medical management for patients with quality of life (QoL) limiting diverticular disease. A parallel observational cohort will include those who are disinclined to have their treatment choice randomized, but are willing to contribute information about their outcomes. The goal of the COSMID trial is to answer the question: For patients with QoL-limiting diverticular disease, is elective colectomy more effective than best medical management? The hypothesis being tested in the COSMID trial is that patient-reported outcomes (PROs) among patients in the surgery arm will be superior to those in the best medical management arm.

Type: Interventional

Start Date: Oct 2019

open study

Background: An electroencephalogram (EEG) measures the brain s electrical activity. EEG shows that the louder the sound needed to wake a person, the deeper the person s sleep. Researchers are using functional magnetic resonance imaging (fMRI) to study people during sleep so they can view brain activity in 3D. But they still need to correlate fMRI with sound thresholds, like the EEG. Objective: To measure brain activity during sleep using fMRI and EEG. Eligibility: Healthy people ages 18 34 who can sleep on their back for several hours. Design: Participants will be screened online about their sleep and general health. At a screening visit, participants will have: Physical exam Hearing exam MRI scan. A strong magnetic field and radio waves take pictures of the brain. Participants will lie down on a bed that slides into the scanner, which is shaped like a cylinder. Participants will wear an actigraph on their wrist that records their motor activity. Participants will follow a 2-week routine. This includes regular in-to-bed and out-of-bed times and limits on alcohol, caffeine, and nicotine. During the overnight visits, participants will have: Female subjects will have a urine pregnancy test. fMRI. A coil will be placed over the head. Participants will do tasks shown on a computer screen inside the scanner. EEG. Small electrodes on the scalp will record brain waves while sleeping or doing a task in the scanner. Participants will be asked to try to sleep while researchers collect fMRI and EEG data. Participants eyes will be monitored with a video camera. Headphones will deliver sounds to wake them up throughout the night. ...

Type: Observational

Start Date: Jan 2016

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

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

GoFreshSE is a randomized control trial, testing the effects of a home-delivered, dietitian-assisted, DASH-patterned grocery intervention on blood pressure in adults with high blood pressure in Florida, Georgia, and Tennessee.

Type: Interventional

Start Date: Oct 2025

open study

The goal of this clinical trial is to learn if the SAGE LEAF (Social Augmentation of self-Guided Electronic delivery of the Life Enhancing Activities for Family caregivers) online positive emotion skill-building program delivered through Caregiver Serving Organizations can help family caregivers of individuals with dementia cope with stress. The main questions it aims to answer are: - How does SAGE LEAF affect positive emotion, caregiver burden, loneliness, and depression for family caregivers? - What are the challenges and successes when rolling out an online program in partnership with Caregiver Serving Organizations? Participants will complete the 8-week online SAGE LEAF intervention as well as two survey assessments, one before the intervention and one after.

Type: Interventional

Start Date: Jul 2025

open study

The goal of this clinical trial is to learn how reducing the nicotine content in filtered little cigars can affect the the use of these cigars and lung health in current adult filtered little cigar users. The main question[s] it aims to answer are: Are puffing behaviors, appeal/satisfaction, craving suppression, pharmacokinetic effects, and demand similar between the regular cigars smoked by participants, normal nicotine study cigars and very low nicotine study cigars? Are health effects and toxicant exposure similar between the regular cigars smoked by participants, normal nicotine study cigars and very low nicotine study cigars? Participants will attend three study visits at OSU. Each visit would last up to 4 hours. During visits, they will - fill several surveys - provide blood samples - perform breathing tests - complete smoking sessions using either their own cigars or the study cigars.

Type: Interventional

Start Date: Feb 2025

open study

Stage 2 Type 1 Diabates (T1D) is an early stage of T1D characterized by dysglycemia but not yet leading to clinical symptoms. Progression of the disease to Stage 3 (clinical T1D), leads to overt hyperglycemia requiring eventually exogenous insulin. TZIELD® (teplizumab-mzwv) has been approved to delay onset of stage 3 T1D, by the United States (US) Food and Drug Administration (FDA) for adults and children aged 8 years and older with Stage 2 T1D. The purpose of this study is to collect general information on patients with stage 2 T1D and further information on the long-term effects of TZIELD® in patients with Stage 2 T1D, treated as per standard of care.

Type: Observational

Start Date: Sep 2024

open study

The objective of this RCT is to assess the efficacy of one-on-one telehealth CBT-I (tCBT-I) compared to web-based CBT-I (wCBT-I) and treatment as usual (TAU) to improve sleep outcomes (Aim 1), fatigue and quality of life (Aim 2), and promote neuroprotection (Exploratory Aim 3), and to explore the characteristics of participants that predict improvement in sleep outcomes (Exploratory Aim 4). Reassessment of outcomes will be completed after the 6-week intervention and 6 months following completion of interventions.

Type: Interventional

Start Date: Oct 2024

open study

In this study the investigators are proposing to evaluate the efficacy, sustainability, and mechanisms of 3 months of individualized counseling of the FRD delivered by registered dietitians, over 8 sessions by phone/video conferencing on fatigue, quality of life, and associated symptoms in persistently fatigued lymphoma cancer survivors compared to 3 months of individualized counseling of the attention control (matched for time and frequency of interactions with the FRD) the General Health Curriculum (GHC). The investigators will randomize and follow 68 lymphoma cancer survivors; accounting for a ~10% drop out rate to achieve a target of 60 patients that will complete the study. The investigators hypothesize that persistently fatigued lymphoma cancer survivors will experience improvements in fatigue, quality of life, and symptoms commonly associated with fatigue, which are then maintained at 15-months post-enrollment; and decreased CRP and alterations in inflammation-associated DNA methylation consistent with reduced inflammation from following the FRD as compared to the GHC.

Type: Interventional

Start Date: Mar 2024

open study

The PLANET Study aims to determine the impact of microplastics on intestinal inflammation and gut microbiome in order to understand the role of this pollutant on the risk of developing inflammatory bowel disease (IBD) as well as other diseases. With this information, the researchers hope to characterize better the role of environmental pollutants on IBD and develop novel strategies towards prevention.

Type: Observational

Start Date: Aug 2023

open study

This study is a pragmatic clinical trial examining the comparative effectiveness of two stimulant medications (methylphenidate and amphetamine) in the treatment of ADHD in children and adolescents with autism. Using a sequential, multiple assignment randomization trial (SMART) design the study will not only assess these two medications but also the role of an increasingly popular class of ADHD medication, the alpha-2 agonists. Findings from this study will help improve clinicians' approach to medication selection and reduce the repeated trials of multiple medications that are current standard care.

Type: Interventional

Start Date: Oct 2023

open study

The overarching goal of this study is to understand facilitators and barriers to self-care, develop and refine a culturally tailored intervention to improve clinical outcomes, quality of life (QOL), and self-care behaviors in African American adults with diabetic kidney disease (DKD) experiencing health-related social needs (HRSN).

Type: Observational

Start Date: Jan 2023

open study

Using indocyanine green (ICG) lymphography and lymphoscintigraphy with SPECT/CT imaging, the aim is to evaluate the anatomy of the lymphatic system pathway in two separate populations: healthy female volunteers and women with a history of breast cancer who did not develop lymphedema.

Type: Observational

Start Date: Apr 2022

open study

This project seeks to determine how post-stroke cognitive impairment moderates motor learning during walking in older adults with chronic stroke and identify brain structural markers that mediate this relationship. The chosen experimental design integrates biomechanical analyses, neuropsychological assessments, and brain imaging techniques to determine the impact of post-stroke cognitive impairment severity on two forms of motor learning (explicit and implicit) and examine the role of the dorsolateral prefrontal cortex in the relationship between cognition and explicit motor learning. Ultimately, this work may lead to the development of a more comprehensive, effective treatment approach to improve walking dysfunction in older adults post-stroke.

Type: Interventional

Start Date: Jan 2023

open study

This trial aims to study the efficacy and safety of cannabidivarin (CBDV) in children with ASD.

Type: Interventional

Start Date: Apr 2019

open study

The objective of the UDECIDE study is to demonstrate adherence to decentralized clinical trials among underrepresented groups with cardiometabolic conditions .

Type: Interventional

Start Date: Sep 2025

open study

The goal of this clinical trial is to compare treatment outcomes between an oral medication (beta agonist) versus onabotulinumtoxinA injections in women with urgency urinary incontinence (UUI). Participants will be randomly selected to receive one of the two treatments. The primary outcome measure will be at 3 months, and women will be followed for a total of 12 months. Based on patient expert input, there are 2 primary outcomes: Treatment satisfaction and urinary symptom severity. The study will also have a long-term follow-up component (prospective cohort) including 346 participants from the parent trial to describe treatment continuation, treatment efficacy, patient direct costs and other secondary outcomes up to 5 years after treatment.

Type: Interventional

Start Date: Jun 2023

open study

The purpose of this clinical trial is to learn about the safety, extent of the side effects, and immune responses of the study vaccine (called variant-adapted BNT162b2 RNA-based vaccine) in healthy children. The trial is divided into 5 individual studies or substudies based on age group and prior history of COVID-19 vaccinations. All participants in each of the 5 sub-studies will receive study vaccine as a shot depending on what group they are in. - Substudy A design: Phase 1 includes participants 6 months through less than 4 years 3 months of age who have not received a previous coronavirus vaccination (COVID-19 vaccine naïve) and will receive 3 doses of study vaccine as their initial series, followed by a fourth dose of study vaccine. Phase 2/3 includes participants 6 months through less than 5 years of age who have not received a previous coronavirus vaccination (COVID-19 vaccine naive) and will receive 1, 2, or 3 doses of study vaccine, depending on what group they are in. - Substudy B design: includes participants 6 months through less than 5 years of age who have either received 2 or 3 prior doses of BNT162b2 and will receive study vaccine as their third or fourth dose. - Substudy C design: Phase 1 includes participants 6 months through less than 5 years of age who have received 3 prior doses of BNT162b2 and will receive study vaccine as their fourth dose. - Substudy D design: includes participants 5 through less than12 years of age who have received 2 or 3 prior doses of BNT162b2 and will receive study vaccine as their third or fourth dose. - Substudy E design: includes participants 5 through less than 12 years of age who have not received a previous coronavirus vaccination (COVID-19 vaccine naive) and will receive a single dose of study vaccine.

Type: Interventional

Start Date: Sep 2022

open study

The purpose of this study is to test whether low-dose buprenorphine initiation for treatment of opioid use disorder is safe and effective.

Type: Interventional

Start Date: Nov 2024

open study

The objective of this application is to illustrate the core constituents of the ocular surface microbiome, describe factors that promote colonization, and assess the ocular microbiome's role in the health of the anterior segment. We will conduct a prospective, observational cohort study, including a longitudinal analysis of the ocular microbiome in adults.

Type: Observational

Start Date: Sep 2023

open study

The TRUST study is a randomized, controlled multicenter study to evaluate the management of gout by comparing two commonly used treatment strategies for gout (TTT vs TTASx) to determine the most beneficial for a patient-centered gout outcomes, as well as relevant cardiovascular-metabolic-renal endpoints.

Type: Interventional

Start Date: Feb 2024

open study

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

The purpose of this study is to determine the changes in quality of life and degree of tremor for patients with essential tremor or Parkinsonian tremor who are treated by stereotactic radiosurgery (SRS). This is a questionnaire-based study. Please see Detailed Description below for more information.

Type: Observational

Start Date: Feb 2013

open study

Anxiety disorders commonly begin during adolescence, and are characterized by deficits in the ability to inhibit or extinguish pathological fear. Recent research has provided new understanding of how fear is learned and can be regulated in the adolescent brain, and how the endocannabinoid system shapes these processes; however, these advances have not yet translated into improved therapeutic outcomes for adolescents with anxiety. This study will test whether a behavioral intervention, acute exercise, can help to improve fear regulation by enhancing brain activity and endocannabinoid signaling. This line of research may ultimately lead to more effect treatments for adolescent anxiety, and to new preventive strategies for at-risk youth.

Type: Interventional

Start Date: May 2024

open study