Healthy Clinical Trials

This study is testing a non invasive way to measure airway pH in individuals with Asthma and Cystic Fibrosis using a new inhaled drug. The airway pH will help health care providers in creating tailored treatment plans for individuals suffering from these specific conditions. Read Less

This research involves feasibility testing of design concepts to support device development of an electric breast pump. The purpose is to evaluate a prototype device for feasibility purposes and not health outcomes. Read Less

To support optimal behavior in daily life, goals and responses following emotional events should ideally incorporate not only the valence and intensity of prior emotional episodes but also their temporal features, such as the relative duration of positive vs. negative attributes. However, how specific brain regions contribute to the integration of temporal and emotional information and promote goal-directed response remains unknown. The goal of this study is to examine how specific brain regions track both emotional and temporal information of dynamic emotional events to inform other related brain regions to guide goal-oriented and context-appropriate actions. The investigators will scan healthy human participants using functional MRI (fMRI) while they view emotional image sequences and track the associated emotional and temporal (duration) information, and act accordingly. The investigators will employ multivariate patterns analysis and pattern similarity analysis to identify brain regions that represent (can decode) emotion, time, and their combined signals, as well as brain regions that represent the associated action goal. In addition, to infer the causal contributions of these brain regions in forming task-relevant representations (emotion, time, and action goal), the same participants will be recruited to receive transcranial magnetic stimulation (TMS) in these regions. Read Less

To study the effect of fractionated 1927-nm non ablative thulium laser in reduction of post inflammatory hyperpigmentation (PIH) using a validated and reproducible model for studying PIH. Determine if there is aa reduction in PIH in patients treated with three (3) monthly sessions of fractionated 1927-nm non ablative thulium laser Determine if there is efficacy of post-procedure clobetasol propionate 0.05% ointment in the management of PIH Determine the histological and molecular changes that occur with laser and laser plus topical steroid treatment compared to untreated skin Read Less

This is a Phase 1, FIH, randomized, double-blind, placebo-controlled study designed to assess the safety, tolerability, PK and PD after SAD and MAD in healthy adult participants. Read Less

The investigators currently lack an understanding of barriers to completing the male factor infertility evaluation. Furthermore, as the investigators continue to expand access to fertility treatment particularly within low-resourced settings, it is important that all aspects of infertility within a couple are equally explored. The COVID-19 pandemic has disproportionately affected low-income communities and communities of color at greater rates in terms of not only disease morbidity/mortality but how medical systems are accessed and care is delivered. Read Less

The study will compare gene expression differences between blistered and non-blistered skin from individuals with all subtypes of EB, as well as normal skin from non-EB subjects. State of the art computational analysis will be performed to help identify new drugs that might help all EB wound healing and reduce pain. Researchers will focus on drugs that have already been approved for treatment of other dermatologic or non-dermatologic diseases, and therefore be repurposed for treatment of EB. Drug development is a very expensive process taking decades for execution. Drug repurposing on the other hand, significantly reduces the cost and shortens the amount of time that is needed to bring effective treatments to clinical use. To date, there is no specific treatment targeting the physiology and immunologic response in EB patients during wound healing. Market availability of repurposed medications will provide all EB patients rapid access to treatments, thus improving their quality of life. Read Less

The primary objective is to evaluate the laboratory safety of Ashwagandha standardized root extract 500 mg capsules in healthy adults over 12-week therapy based on Complete Blood Count, Renal Function Test, Liver Function Test, Lipid Profile and Thyroid Function Test, Fasting blood sugar and HbA1c Test. The secondary objectives are to evaluate the clinical safety of Ashwagandha standardized root extract 500 mg capsules in healthy adults over 12-week therapy and to evaluate the effect of the Ashwagandha standardized root extract 500 mg on Quality of Life (QoL) using the SF-36 tool. Read Less

There is reason to believe the current dietary reference intakes for dietary protein for children are too low. Furthermore, children with high levels of physical activity and fitness may require a higher requirement. To better understand the protein requirements in minimally and highly physically fit and active children 8-10 y old, investigators will use the indicator amino acid oxidation technique. Read Less

The purpose of this study is to evaluate the Genesis Electrical Impedance Tomography (EIT) imaging system for use in pediatric respiratory disease populations including neuromuscular and bronchopulmonary dysplasia, as well as in age and height matched controls. The EIT does not use radiation, and is read through electrodes. Read Less

Emerging evidence demonstrates that animals and people can exert control over the level of excitability in spinal and corticospinal neural circuits that contribute to movement. This discovery has important implications, as it represents a new strategy to improve motor control in people of all ability levels, including those with neurological conditions. Operant conditioning is a well-studied mechanism of learning, in which the modification of a behavior can be brought about by the consequence of the behavior, and reinforcement causes behaviors to become more frequent. In recent years, operant conditioning has been applied to spinally-mediated reflex responses in mice, rats, monkeys and people. By electrically stimulating a peripheral nerve, recording the muscle response, and rewarding responses that are within a desirable range, it is possible to increase or decrease the neural circuit's excitability. This may alter the level of resting muscle tone and spasticity, as well the muscle's contribution to planned movements and responses to unexpected events. Operant conditioning of spinal reflexes has been applied to a lower limb muscle in healthy people and those with spinal cord injuries. In this project, we will expand the use of operant conditioning to muscles of the upper limb, demonstrating feasibility and efficacy in healthy people and people post-stroke. We will determine whether operant conditioning can be used to decrease excitability of spinal reflexes that activate a wrist flexor muscle. Additionally, in a separate group of healthy people, we will determine whether operant conditioning can be used in a similar way to increase corticospinal excitability. We will stimulate the motor cortex with transcranial magnetic stimulation to elicit motor evoked potentials in the same wrist flexor muscle, and will reward responses that exceed a threshold value. We will examine the effects of these interventions on motor control at the wrist, using an innovative custom-designed cursor-tracking task to quantify movement performance. We will determine whether changes in spinal reflex excitability or corticospinal excitability alter motor control. The overall goal of this research is to develop a new, evidence-based strategy for rehabilitation that will improve recovery of upper limb function in people after stroke. Read Less

We will sample intestinal microbiota using a microbiome sampling capsule in Healthy, Irritable Bowel Syndrome (IBS), and Functional Gastrointestinal Disease. Read Less