Clinical trials

This study will evaluate the efficacy and safety of Gadopiclenol, an FDA-approved contrast agent, for visualizing pituitary lesions on MR images by comparing with the comparator, Gadobutrol, a clinically widely used contrast agent. The study is double-blinded, so neither the participants nor the researchers know which contrast agent is being used during each scan to avoid the bias of results.

This research is being done to determine if producing sperm after an ultrashort period of abstinence (1 hour of abstinence) will be effective in improving the rates of embryos with normal chromosomes (structures that carry genetic information) during in vitro fertilization (IVF) treatment. The investigators hypothesize that a shorter period of abstinence is effective at improving rates of normal chromosomes among embryos.

CMD can be inherited in an autosomal dominant or recessive trait. CMD may also be caused by de novo mutations. The goal of this study is to identify genes and regulatory elements on chromosomes that are the cause for CMD. The investigators also study blood samples and tissue samples from patients to learn about the processes that lead to this disorder. The investigators long-term goal is to find mechanisms to slow down bone deposition in CMD patients.

The goal of this research study is to identify genes and regulatory elements on chromosomes that cause ACC. The investigators also study tissue samples from patients to learn about the processes that lead to this disorder.

The goal of this research study is to identify genes and regulatory elements on chromosomes that cause cherubism. Together with the investigators collaborators the investigators also study blood samples and tissue samples from patients to learn about the processes that lead to this disorder. The long-term goal of researchers involved in this study is to find mechanisms to slow down bone resorption in cherubism patients.

Keloids have a strong genetic component. The goal of this study is to identify genes and regulatory elements on chromosomes that are the cause for keloids or contribute to keloid scarring.

Hypothyroidism is a common condition, more frequent in females, associated with excess of cardiovascular risk and poor quality of life not completely abrogated by treatment with levothyroxine. There is an unmet need to define a safe, effective, and feasible regimen to be applied in large trials aimed at assessing levothyroxine/liothyronine combination therapy in patients living with hypothyroidism. To address this knowledge gap we propose a randomized, three-arm, double-blind, controlled, escalating dose parallel pilot study whose results will lay the foundation of large multicenter trial(s) able to demonstrate the effectiveness (or lack thereof) of levothyroxine/liothyronine combination therapy.

The goal of this clinical trial (CT) is to learn more about emerging adults' and their peers. Here, we will see how co-participating with a peer in health program might impact brain and behavior change over time. Eligible youth will be invited to come in for a "Participation Day," during which they and a peer will independently complete questionnaires. With a peer, they will then complete a short health program, and undergo a brain scan (fMRI) while completing activities. Our study team will reach out to each participant individually again 3, 6, and 12 months later to learn about health behaviors over time.

The goal of this clinical trial is to test the effects of MitoQ supplementation in older adults and frail older adults with physical dysfunction and/or cognitive dysfunction. The main question\[s\] it aims to answer are: * To compare vascular function, oxidative stress levels, and physical and cognitive function among older adults and frail older adults with physical and cognitive dysfunction * To determine whether MitoQ supplementation has the potential to improve vascular function in central and cerebral vessels * To determine whether MitoQ supplementation can enhance physical and cognitive capabilities.

This is a prospective pilot study to evaluate changes before and 4 weeks after beta-blocker withdrawal in 30 HFpEF patients.

The overall objective of this clinical trial is to identify the impact of selected package features, known as the Opioid Package Prototype (OPP), on the safe and effective use of opioids. Our specific aims are: (Aim 1) to evaluate the effectiveness of OPP on prescribing, dispensing, and patient use of oxycodone among orthopaedic surgery patients receiving post-operative outpatient oxycodone for post-surgical pain management, and (Aim 2) to determine the feasibility of OPP for orthopaedic surgery prescribers, pharmacists, and orthopaedic surgery patients. Such data can be used to further optimize packaging and labeling design, help patients and caregivers utilize their medication and packaging correctly, and improve prescribing and dispensing habits. The central hypothesis is that the OPP will be more effective than the amber vial in efforts to reduce oxycodone prescribing among patients over 18 receiving short-term management of post orthopedic surgery pain.

The purpose of this research study is to discover the functions of circulating white blood cells, called monocytes, and associated circulating substances in heart attack and ischemic stroke patients. Ischemic Strokes (clots) occur as a result of an obstruction within a blood vessel supplying blood to the brain. A type of monocyte carrying a surface marker called "P2X4" helps the immune system sense and respond to danger signals from the body such as heart muscle and brain tissue injuries. The researchers expect to learn more about how these monocyte cells react to heart and brain tissue injury, and how the cells may then produce proteins or other chemical substances which promote the healing of heart muscle after heart attack and brain tissue after an ischemic stroke.

The purpose of this research is to determine if two proteins in the blood are increased during acute heart failure. These two proteins are produced when the heart becomes dysfunctional and unable to contract normally. They may then be released into the blood and be detected by standard method in the research laboratory. Thus, the purpose of this study is to determine the relation between the change of these two proteins in the blood and the occurrence of acute heart failure. At this time, detection of an increase in these proteins in the blood is not known to be associated with any disease or heart failure.

The purpose of this research is to determine if two proteins in the blood are increased during acute myocardial infarction and whether their levels are higher in those who develop heart failure than those who do not. These two proteins are produced and potentially released when the heart muscle is damaged. They may then be released into the blood and be detected by standard method in the research laboratory. At this time, detection of an increase in these proteins in the blood is not known to be associated with any disease or myocardial infarction.

This is a cross-sectional, clinical research study comparing postmenopausal women of African Descent (AD) with different hemoglobin genotypes: normal and sickle cell trait (SCT). This research study has two purposes. The first purpose is to determine whether having SCT is a risk factor for the development of bone thinning in older women. The second purpose is to investigate whether women with SCT have reduced muscle function and increased frailty compared to women without SCT. The investigators estimate enrolling 50 female volunteers who are at least 50 years old and have not had a menstrual period for at least 12 consecutive months. Volunteers need not know whether they have SCT as this will be evaluated as part of the study.

The goal of this clinical trial is to conduct a randomized controlled trial to enhance the capacity of pediatric primary care providers to assist their patients who struggle with anxiety. The study aims to refine and assess the feasibility of the Anxiety Action Plan (AxAP), a brief intervention to reduce pediatric anxiety, delivered by primary care providers (PCPs) in community pediatric primary care clinics. The goal of the AxAP is to enhance the capacity of PCPs to identify and intervene with anxious youth, which will enhance access to care in general and especially in locations with few mental health specialists. PCPs participating in this study will attend a training, administer the intervention to enrolled youth assigned to the MAPP condition, participate in coaching sessions, and fill out study questionnaires. Families participating in this study will complete evaluations with the study team, receive the intervention from their PCP (if assigned to the MAPP condition), and fill out study questionnaires. Researchers will compare the MAPP intervention to Enhanced Usual Care (EUC; consisting of videos, handouts, and other resources for anxiety reduction) to see the differences, if any, in child outcomes.

Excessive anxiety among elementary students is highly prevalent and associated with impairment in academic, social, and behavioral functioning. The primary aim of this project is to evaluate the initial efficacy of a brief nurse-delivered intervention (CALM: Child Anxiety Learning Modules), relative to a credible comparison (CALM-R, relaxation skills only) and a waitlist control for reducing anxiety symptoms and improving education outcomes at post intervention and at a 1-year follow-up. In addition, the research team will assess the cost effectiveness of CALM versus CALM-R and the waitlist control and examine potential predictors, moderators, and mediators of CALM's impact on child outcomes based on the proposed theory of change.

This study aims to examine the effect of force levels in orthodontic treatment during canine retraction. Force levels refer to the pressure applied by the orthodontic devices to move teeth. Data collection will include gingival fluid, dental molds from a digital scanner, and x-rays of the upper canine region on both sides of the mouth during treatment. The null hypothesis to be tested is that there is no significant difference in the rate of canine movement between the light force and the heavy force levels.