528 Clinical Trials for Various Conditions
The purpose of this study is to directly characterize the pharmacokinetic (PK) profiles of resmetirom and its major metabolite (MGL-3623) following oral administration of 100 mg resmetirom (QD x 6 days) in subjects with severe renal impairment (RI) compared to healthy matched control subjects with normal renal function.
The goal of this clinical trial is to learn about how asthma influences brain function. The main questions it aims to answer are: * How airway inflammation in asthma affects the brain; and, * Whether airway inflammation in asthma is related to symptoms of depression and anxiety Over the course of 3 visits, participants will: * Complete questionnaires * Complete computer tasks * Undergo allergy skin test and breathing tests * Give two blood samples * Give a sputum sample * Complete brain imaging scans Researchers will compare results between participants with asthma, and participants who do not have asthma.
The Investigators will generate a repository of human biosamples across therapeutic areas that will be used to identify disease-associated biomarkers and potential targets with immune and multi-omics profiling. This sample collection and analysis from people living with type 2 diabetes, or chronic or diabetic kidney disease will lay the groundwork for an extensive network of biosample access and linked datasets that will provide an invaluable resource for translational research.
The primary purpose of this study is to compare the pharmacokinetics (PK) of a single oral dose of mitapivat in participants with moderate hepatic impairment to that in matched healthy control participants with normal hepatic function.
Background: Shingles is a painful, blistering rash caused by the same virus that causes chickenpox. Shingrix is a vaccine approved to prevent shingles in healthy adults over age 50 and in immunocompromised adults over age 18. Researchers want to learn more about how people with HIV respond to Shingrix. Objective: To learn how Shingrix affects the immune response in people with HIV. Eligibility: People aged 18 years and older with HIV. Healthy people aged 50 years or older are also needed. Design: Participants will have at least 4 clinic visits in 1 year. Participants will be screened. They will have a physical exam with blood and urine tests. At their first visit, participants will receive Shingrix as a shot in the upper arm. They will have a rectal swab; a cotton swab will be inserted into the rectum and rotated gently to collect bacteria. Participants will receive a second shot of Shingrix 2 months after the first one. They will visit the clinic again 3 and 12 months after the first shot. Participants will receive a 28-day memory tool. They will write down their symptoms between clinic visits. They will have up to 4 phone calls to talk about side effects of the shot. Participants may undergo apheresis: They will lie still while blood is drawn from a needle in one arm. The blood will pass through a machine that separates out the white blood cells. The remaining blood will be given back through a second needle in their other arm....
The objective of this study is to assess the pharmacokinetics (PK), safety, and tolerability of S-217622 in participants with mild and moderate hepatic impairment compared with control participants with normal hepatic function.
This is a phase 1, open-label, single-dose study in adults with moderate hepatic impairment (defined as Child-Pugh B cirrhosis) and matched healthy control participants with normal hepatic function. All participants in both cohorts (moderate hepatic impairment and matched healthy controls) will receive a single dose of the study drug, linerixibat. The purpose of this study is to assess the effect of hepatic impairment on the pharmacokinetics (PK) and safety of linerixibat.
The purpose of this study is to evaluate the effect of hepatic impairment on the systemic pharmacokinetics (PK), safety, and tolerability of JDQ443 in participants with varying degrees of hepatic impairment.
This is a pilot study of a digital training task called GAMBIT. This study will be the first to examine potential relationships between GAMBIT task completion and brain circuit flexibility, behavior, and symptoms in participants with PTSD.
This study will evaluate the impact of ofatumumab in Relapsing Remitting Multiple Sclerosis (RRMS) participants that are very early in the course of their disease using clinical and magnetic resonance imaging (MRI) outcomes. The study will also assess changes in disease using monitoring techniques including digital biometric device use, biomarker analysis and non-conventional MRI. Select outcomes in the ofatumumab treated group will be compared to a group of Healthy participants to determine if there are similarities between the groups after the patients with MS undergo treatment with ofatumumab.
The primary aim of this study is to discover whether patients with CMT type 1 and 2 have neuromuscular junction transmission deficits. The secondary aim is to collect information of different clinical and electrophysiological test procedures to perform possible future clinical trials in CMT patients.
The purpose of this study is to compare the plasma and urine pharmacokinetics (PK) of MK-3402 in participants with impaired renal function and healthy control participants, to investigate the extent to which MK-3402 is removed from the plasma by hemodialysis (HD), and evaluate the safety and tolerability of MK-3402 in participants with impaired renal function.
The purpose of this research is to measure the extent of inflammation in the brain between different groups of participants using a radioactive tracer called \[18F\]NOS. A radioactive tracer is a type of imaging drug that is labeled with a radioactive tag and injected into the body. This study will see how the tracer is taken up in the brain using an imaging scan called Positron Emission Tomography / Computed Tomography (PET/CT). Participants will undergo approximately 60 minutes of dynamic scanning of the brain starting at approximately the time of injection of \[18F\]NOS. Participants are required to have a brain MRI performed within 1 year prior to study enrollment, or if the subject has not had a brain MRI that is deemed acceptable for use for this study they will be asked to undergo a research brain MRI after they have consented for this study.
Inflammatory responses in response to alcohol have been identified as contributing to the development of alcoholic hepatitis. The inflammatory response including that to LippoPolySaccharide is known to lead to progression of alcoholic liver disease. In addition to the inflammatory response mitochondrial perturbations exist and redox homeostasis is altered in patients with alcoholic hepatitis. Though this is known there have been very few studies targeting mitochondrial function in Peripheral Blood Mononuclear Cells (PBMCs). We plan to collect 50 milliliters of blood from healthy control patients so that we can compare the data to that of patients with alcoholic hepatitis and those who are heavy drinkers without liver disease. In addition to studying mitochondrial function we will investigate cytokine response, as well as fatty acid metabolism, glucose, and insulin measurements
The primary objective of this study is to identify a new radioligand for imaging of tauopathy in Alzheimer's disease through direct comparisons of two potential candidates, \[18F\]RO-948 (formerly known as \[18F\]6958948) and \[18F\]MK-6240, and demonstration of the candidates' absence of off-target binding.
Gastroparesis Patients and Healthy Controls ages 20-49 will be asked to participate in an observational study measuring vagal activity following food ingestion in order to establish parameters of autonomic nerve/vagal function in healthy human subjects compared to those with gastroparesis. Information generated from this study may be used in the future to establish what is normal and abnormal enteric vagal tone and how much vagal nerve stimulation treatment may be required to help patients with gastroparesis.
The primary purpose of this study is to evaluate the effect of hepatic impairment on the systemic exposure of tropifexor and to evaluate the safety of tropifexor in subjects with hepatic impairment. The results of this study will support treatment and dosing decisions for patients with varying degrees of hepatic impairment.
Background \& Significance Pain is the primary reason many patients seek care from healthcare professionals who utilize various manual therapy techniques. Gaining further understanding of the hypoalgesic properties of such techniques can enable practitioners to more skillfully integrate them in managing patients presenting with pain. Previous research has revealed that various manual techniques result in both local and widespread hypoalgesic changes in asymptomatic controls and patients in pain. Much of this previous research has investigated thrust manipulation; however, there is a paucity of similar research investigating these effects in neurodynamic mobilization. Specific Aims Aim: To assess for immediate local and widespread hypoalgesic effects of neurodynamic mobilization applied to the upper extremity. Hypotheses: * Subjects who receive neurodynamic mobilizations will exhibit greater positive changes in local and widespread Qualitative Sensory Testing (QST) measures compared to those who receive a sham mobilization. * Subjects who receive neurodynamic mobilizations will exhibit greater positive changes in elbow ROM and reported sensation intensity with upper limb neurodyndamic testing as compared to those who receive a sham mobilization. Aim: To assess for differences in immediate local and widespread hypoalgesic effects of sliding vs tensioning neurodynamic mobilization techniques applied to the upper extremity Hypotheses: * Subjects who receive sliding neurodynamic mobilizations will exhibit greater positive changes in local and widespread QST measures compared to those who receive tensioning neurodynamic mobilization * Subjects who receive sliding neurodynamic mobilizations will exhibit greater positive changes in elbow range of motion (ROM) and reported sensation intensity with upper limb neurodynamic testing testing compared to those who receive a tensioning neurodynamic mobilization
The purpose of this study is to understand the reliability of \[18F\]-FTC-146 brain uptake in healthy controls.
Background: This study follows people who have had, or will soon have, a transplant using stem cells from another person. This is known as an allogeneic hematopoietic stem cell transplant (HSCT). Graft-versus-host disease (cGVHD) can happen after HSCT. cGVHD can cause mouth problems and more serious issues. Researchers want to study changes in the mouth that might indicate cGVHD. Objective: To identify cGVHD in the mouth and better understand the development, treatment, and progress of post-transplant changes in the mouth. Eligibility: Adults at least 18 years old who will soon undergo HSCT or have had one in the past 3 years Healthy adults at least 18 years old Design: All participants will have a screening visit and baseline visit. They will last 60-90 minutes. Over these two visits, participants will have: Medical and dental history Dental exam. Questions about their eating habits and general health Blood drawn through a needle in the arm Vital signs taken Pictures of their mouth and lips taken Questions about their oral health, including about pain, sensitivity, or dryness Saliva samples taken. Participants will spit into a sterile plastic tube. Swabs taken of the mouth and some of the saliva, plaque, and fluid from the spaces between teeth and gums. Participants may also have: A piece of skin taken (biopsy) from the inner lining of the cheeks A piece of skin taken (biopsy) from the lower lip Dental X-rays Urine pregnancy test Most participants will have at least 7 study visits over 3 years. They will meet with a dentist and repeat baseline tests.
The purpose of this study is to compare plasma and urine PK parameters of MK-3866 between participants with impaired renal function and healthy control participants, to investigate the extent to which MK-3866 is removed from the plasma by hemodialysis (HD), and evaluate the safety and tolerability of MK-3866 in participants with impaired renal function.
The availability of biological samples from individuals with alcoholic liver disease (ALD), as well as samples from appropriate heavy drinking, yet healthy controls and non-drinking healthy controls, is an essential first step in the translation of basic research advances to the clinic. The purpose of the Clinical Core component of the P50 Northern Ohio Alcohol Center (NOAC) is to provide biological samples (plasma/serum, buffy coats, and urine) from patients with different stages of alcoholic liver disease, as well as healthy control subjects, to members of the NOAC. These samples can then be used to test specific hypotheses related to the presence of specific biomarkers in the serum, functional immune activity in PBMCs and/or genetic polymorphisms that may predict severity of disease, short- and long-term morbidity and mortality and/or responsivity to specific therapeutic interventions commonly used in clinical practice. This study is building on the established biorepositories and the diversity of outstanding clinical expertise at the Cleveland Clinic. This biorepository included clinical samples (plasma, serum, buffy coats, and urine) from patients with different stages of ALD and subjects who are heavy drinkers without ALD, recruited from the Cleveland Clinic alcohol use disorder treatment clinic. This study will be responsible for collecting more data to help build the CCF-ALD biorepository via subject recruitment and communication and specimen collection.
Analysis of mucus, mucin and DNA concentration, MUC5B/5AC ratio, rheology, osmotic pressure, cohesion and nucleotides in sputum on 30 individual samples of good quality in healthy individuals and those with bronchiectasis. (60 total)
The aim of this study is to employ genomic detection methodologies to measure the relative amount of tumor-derived nucleic acids in the blood of patients diagnosed with an early stage solid tumor who are either commencing, currently undergoing or have completed treatment. This approach will allow the investigators to develop a quantitative measure of therapy efficacy via the counting of the relative changes in tumor molecules over the course of treatment.
Non-celiac gluten sensitivity (NCGS) is an emerging clinical entity defined as the presence of intestinal and/or extraintestinal symptoms induced by the ingestion or gluten and relieved by a gluten free diet (GFD) in patients without celiac disease or wheat allergy. The pathologic mechanism of the disorder is unknown, and there are no known biomarkers or associated histopathologic findings. In this prospective, randomized controlled trail, we are investigating the utility of patient reported symptom questionnaires, as well as stool gluten and urine quantification tools in patients with NCGS and healthy controls.
In a1972 study in the French Annals of Pharmaceuticals, Laroche and Laroche reported that the drug clemastine has a negative effect on patients' color discrimination, which is the ability to distinguish different hues and arrange them in the correct order. In an upcoming clinical trial studying the effect of clemastine on vision outcomes, our lab aims to assess color visual performance adding assessment of color defectiveness as a clinical endpoint. Color defectiveness is the ability to see certain colors, and is commonly referred to as color-blindness. Color discrimination and defectiveness can be related, but do not always correlate. This study aims to detect the effect, if any, that clemastine has on color defectiveness in healthy controls, which could confound its use as an outcome endpoint in future clinical trials relating to clemastine.
This exploratory study proposal is the first pilot brain imaging study to determine if Tai Chi can modulate brain resting state functional connectivity (rsFC) and brain morphometry among fibromyalgia (FM) patients and healthy controls.
Our objective is to determine whether HIV infected youth have higher level of endothelial dysfunction, as measured by Peripheral Arterial Tonometry, when compared to age matched healthy controls. The investigators also aim to gather preliminary data on whether endothelial Peripheral Arterial Tonometry (endoPAT) measurements of endothelial dysfunction are independently associated with HIV and antiretroviral factors, and with markers of inflammation and traditional cardiovascular disease risk.
Kynurenic acid (KYNA) is a naturally occurring chemical in the brain. Studies with rodents indicate that levels of KYNA can impact levels of the neurotransmitters glutamate and dopamine. One way to reliably increase KYNA levels is by ingesting the amino acid tryptophan. Tryptophan is a normal part of the human diet. Tryptophan gets metabolized/changed to other chemicals in the body- including KYNA. By giving people 6 grams of tryptophan, the investigators will be able to increase the KYNA level in a controlled way. The investigators will then be able to study the effects of KYNA on neurotransmitters by using cognitive tests and magnetic resonance imaging techniques (measuring brain activity and brain chemistry using the MRI magnet). They will test people using tryptophan and also using a placebo to look for differences. The investigators will test healthy controls and people with schizophrenia to look for differences.
Idiopathic CD4 lymphocytopenia (ICL) is a rare syndrome defined by consistently low CD4 T cell counts (\<300/mm3) without evidence of HIV infection or other known immunodeficiency. Patients with ICL are at risk for opportunistic infections typically associated with HIV/AIDS such as disseminated cryptococcal infection and severe human papillomavirus-related dysplasia. More than 20 years since the description of ICL, its etiology, pathogenesis, and management remain unclear. In this study we propose to administer the combination of granulocyte colony stimulating factor (G-CSF) and plerixafor to ICL patients and healthy volunteers with the objective of harvesting mobilized CD34+ hematopoietic progenitor cells (HPCs) by apheresis for transfer into immunocompromised mice and for study with in vitro assays. The mice studies would serve to investigate thymic development, survival, and trafficking of the mobilized human cells within murine lymphoid and non-lymphoid organs. HPCs are used for various therapies and there is an increasing use of agents that stimulate the bone marrow to produce progenitor cells and move them into the bloodstream where they may be harvested by apheresis. Not all patients respond to GCSF with vigorous HPC mobilization. The binding of chemokine receptor CXCR4 to stromal cell derived factor (SDF-1 or CXCL12) is an important interaction between a hematopoietic progenitor cell and its marrow environment. Plerixafor is a CXCR4 inhibitor which blocks binding to SDF-1 resulting in the release of hematopoietic progenitor cells (CD34+) into peripheral circulation. In pharmacodynamic studies of plerixafor in conjunction with G-CSF compared to G-CSF and placebo, a two-fold increase in CD34+ cell count was observed. Due to the important role CXCR4 plays in immune cell trafficking and its potential role in the pathogenesis of ICL, we propose as a secondary objective to assess peripheral CD4 T cell and CD34+ hematopoietic progenitor cell numbers and functions in ICL patients compared to controls following G-CSF and plerixafor administration. Study participants will be screened within 12 weeks prior to the study period. Eligible participants will receive G-CSF for 5 days with hospitalization on Day 4 for plerixafor injection followed by apheresis on Day 5. Participants will return for examinations and blood draws on Days 8 and 12.