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Showing 1-20 of 6,045 trials
NCT07549828
This study aims to develop a standardized workflow for sebum sampling and metabolomics/lipidomics analysis using Sebutape. A total of 200 participants will be recruited, including healthy individuals, patients with skin diseases, individuals undergoing dermatological treatments or using skincare products, and a subset of healthy participants receiving short-term topical antibiotic intervention. The study will investigate sebum composition, skin microbiome profiles, and their interactions under different conditions to explore potential biomarkers and clinical applications.
NCT06212804
This is a first-in-human (FIH), randomized, placebo-controlled, double-blind, single ascending dose (SAD) study to assess the safety and tolerability of VIS954, a monoclonal antibody, in healthy adult male and female participants.
NCT01517100
Background: \- The endocannabinoid system is involved in different body functions and processes. It helps regulate appetite and mood, and sends signals to the nervous system. It may also be involved in how the body produces insulin during digestion. Researchers want to test two drugs that work on the endocannabinoid system: nabilone and CP-945,598. These drugs may be able to affect insulin levels in the blood. This information may suggest possible new treatments for people with diabetes. Objectives: \- To study how the endocannabinoid system is involved in insulin production and action. Eligibility: \- Healthy men between 21 and 55 years of age. Design: * Participants will be screened with a physical exam and medical history. They will provide blood and urine samples. They will also have imaging studies to test their brain responses, especially to food-related cues. Some participants will also have a study visit to test their insulin resistance levels. * Participants will have four separate study visits 6 weeks apart. They will keep a food diary before each visit. At each visit, they will have one of the following combinations of drugs: * Double placebo * Placebo and nabilone * Placebo and low dose of CP-945,598 * Placebo and high dose of CP-945,598. * Participants will have follow-up visits 1 week after each study visit. Blood samples will be taken.
NCT07470866
The purpose of this clinical trial is to compare the amount of tafamidis in the blood of healthy adult participants after taking two different forms of tafamidis by mouth under fed conditions.
NCT00104325
Background: \- National Institute on Aging researchers are looking at studies that require large numbers of white blood cells for lab use. Standard blood samples do not provide enough white blood cells for these studies. Researchers want to use cytapheresis to collect white blood cells from volunteer donors. This procedure can collect larger amounts of white blood cells and reduce the amount of fluid and other cells that are lost. Objectives: \- To use cytapheresis to collect white blood cells for study. Eligibility: \- Healthy blood donors at least 18 years of age. Design: * Participants will be screened according to the usual blood donation procedures. * Participants will provide white blood cells through cytapheresis. The blood cells will be collected in a machine that separates the white blood cells from the rest of the blood. The rest of the blood will be returned to the donor. * Participants may have this type of donation every 56 days (six times per year). They will be asked to become a repeat donor. A donation schedule may be set up. * Once a year, participants will have blood tests to continue to be eligible as a donor.
NCT07221448
The goal of this clinical trial is to determine if a self-selected high potassium diet is easier to achieve and more effective at improving vascular health than a low sodium diet in generally healthy young adults who typically consume more than the recommended amount of sodium. The main questions it aims to answer are: 1. Is it easier for young adults to increase their potassium intake, rather than reduce their sodium intake? 2. Is a self-selected high potassium diet better at improving vascular health compared to a self-selected low sodium diet? Researchers will compare the effectiveness of an education-based intervention centered only on increasing dietary potassium intake against an education-based intervention centered only on reducing dietary sodium intake. Participants will be randomly assigned to receive comprehensive dietary education on adopting either a high-potassium diet or a low-sodium diet. Education will be delivered in four weekly one-on-one sessions. Following the four-week education period, participants will be encouraged to change their diet based on what they have learned. Measures of dietary compliance (urine samples and diet records) and cardiovascular health (blood pressure, endothelial function) will be assessed at two, four, and six months post-education.
NCT07548541
This randomized, double-blind, four-period crossover trial investigates the acute effects of creatine monohydrate, L-arginine, and their combined administration on anaerobic performance, jump performance, and cognitive reaction time in recreationally active adult males. Eighteen healthy male participants complete four experimental conditions in randomized order: placebo, creatine, L-arginine, and creatine plus L-arginine, with at least 72 hours between sessions. Sixty minutes after supplementation, participants perform the Stroop Color-Word Test, countermovement jump test, and Running-Based Anaerobic Sprint Test. Primary outcomes include peak power, average power, countermovement jump height, and incongruent Stroop reaction time. The study aims to determine whether acute co-supplementation produces greater ergogenic and cognitive benefits than either supplement alone or placebo.
NCT06687928
A Randomized, Double-blind, Two-arm, Parallel-group, Single-dose, Phase 1 Study to Compare the Pharmacokinetics, Safety, and Immunogenicity of Subcutaneous CT-P6 and Herceptin in Healthy Male Subjects
NCT03535129
Background: Problem drinking affects nearly half the people who drink alcohol. Drinking alcohol affects a person's social behavior and brain structure, but researchers don't have a good understanding of how. They want to test a technique called neurofeedback to learn more about how to treat problem drinking. Objectives: * To study what happens in the brains of people who drink alcohol when they look at pictures of social things and of alcohol. * To learn if people can control brain activity in a magnetic resonance imaging (MRI) scanner and if this helps people with drinking. Eligibility: * Adults ages 21 to 65 who have an alcohol use disorder. * Healthy volunteers ages 21 to 65 Design: Participants will be screened with * Physical exam * Medical history * Blood, urine, and heart tests * Mental health interview * Questions about their alcohol drinking. At each session, participants will have: * A urine test for drugs and pregnancy. If they test positive, they cannot participate. * A breath alcohol test and assessment for alcohol withdrawal. Participants will complete surveys, talk to researchers about behaviors, and play games. Participants will have MRI brain scans. The scanner is a metal cylinder in a strong magnetic field. They will lie on a table that slides in and out of the scanner for 1-2 hours. Participants will do tasks in the scanner: * They will look at pictures, sometimes of alcohol. * They will try to hit a goal. Some participants will get feedback during this task. They will see how their brain activity changes or how someone else's changes. Participants may have follow-up phone questions at least 3 times over about 6 months.
NCT05127109
This is a research study to determine if a particular method of providing nutrition improves the clinical outcomes of patients in the intensive care unit (ICU) who have undergone abdominal surgery and would require nutrition delivered via the bloodstream (called total parenteral nutrition or TPN). The nutrition method we are testing is a structured nutrition delivery plan that involves tube feeding, oral nutrition supplements, and the use of a device (called an indirect calorimeter or IC) to measure calorie needs. This study will also use two devices to measure fat and muscle mass to examine changes during hospitalization. Subjects will be followed throughout hospitalization where nutrition status and fat and muscle mass will be closely monitored. Study activities will begin within 72 hours of a patient's abdominal surgery. TPN (total parenteral nutrition, a method of feeding that bypasses the usual process of eating and digestion) will be started, a non-invasive method of assessing calorie needs (indirect calorimetry (IC)) will be started, a urine sample will be collected to help assist in protein needs, and fat/muscle mass will be measured using bioelectrical impedance analysis (BIA), and an ultrasound. This is a minimal risk study and all products/devices used are non-invasive and FDA-approved. Indirect calorimetry and urine sample collection will be conducted every 3 days during the stay in the Intensive Care Unit - ICU, then every 5 days until hospital discharge. BIA and muscle ultrasound will be conducted every 7 days during ICU stay, then every 14 days until hospital discharge.
NCT06637865
The goal of this clinical trial is to evaluate the safety and tolerability of single and multiple doses of IMP761 in healthy female and male volunteers aged 18-55 with no history of disease affecting the immune system or recent use of medication with effects on the immune system. The main question it aims to answer is: \- if IMP761 is safe and tolerable as determined by assessing vital signs, emerging (serious) adverse events, electrocardiography, and clinical laboratory tests. Researchers will compare IMP761 to a placebo (a look-alike substance that contains no drug) to see if single and multiple doses of IMP761 are safe and tolerable in healthy volunteers. Part B of the study also investigates the effect of IMP761 on the inhibition of the keyhole limpet haemocyanin (KLH) driven immune response compared with placebo. Participants will: * receive IMP761 or a matching placebo intravenously once in single dose (part A and B) and three times in multiple dose (part C) during a 4 day in clinic stay with 4-8 following visits. * receive KLH challenge * be monitored for up to 103 days after the first dose.
NCT07548606
Researchers have designed a study medicine called opevesostat as a new way to treat prostate cancer. The purpose of this study is to learn what happens to opevesostat in a person's body over time (a pharmacokinetic or PK study). Researchers will compare what happens to opevesostat in the body when it is given with and without another medicine called itraconazole.
NCT07388667
Researchers are looking for new weight loss medicines for people with higher body weight. The study medicine, MK-4082, is different from similar weight loss medicines because people take it as a pill instead of an injection. Before giving a study medicine to people with a health condition, researchers first do studies to find a safe dose level (amount) of the study medicine that can be used in future studies. The goals of this study are to learn about: * The safety of MK-4082 and if people tolerate it * What happens to different MK-4082 dose levels in a person's body over time
NCT07231744
The purpose of this research is to establish the safety, tolerability, pharmacokinetics, pharmacodynamics, and immunogenicity of a single IV dose of STLX-2012.
NCT07544472
In the literature, assessment questionnaires related to dyspnea measure beliefs about breathing-related symptoms but do not directly measure breath awareness. For this purpose, the Breath Vigilance Questionnaire (BVQ) is a subjective questionnaire developed from the Pain Awareness Questionnaire that directly measures breath-specific awareness and includes questions evaluating the interaction between conscious monitoring and control of breathing and anxiety. The questionnaire, consisting of 6 questions, was developed on healthy individuals and its validity and reliability were established. It uses a 5-point Likert scale from 1 (never) to 5 (always), with scores ranging from 6 to 30, and higher scores indicate higher breath awareness . The reliability and validity of the Turkish version of the Breath Vigilance Questionnaire will assist researchers in assessing dysfunctional breathing and developing treatment strategies by evaluating breath awareness. Therefore, the study aimed to investigate the validity and reliability of the Turkish version.
NCT07305532
Healthy volunteers aged 18 to 85 will undergo ¹⁹F (perfluoropropane) MRI to support the development of imaging sequences, reconstruction algorithms, and hardware necessary for acquiring high-spatial resolution lung images. The study will also evaluate signal-to-noise ratio, contrast-to-noise ratio, spatial resolution, scan duration, and pulmonary gas exchange measurements derived from ¹⁹F (perfluoropropane) MRI.
NCT07545590
The main purpose of this study is to evaluate how eltrekibart is absorbed by the body when it is given under the skin to healthy participants. The study will last about 17 weeks.
NCT07544069
Childhood is a critical period for the development of lifelong health behaviors, and early interventions play an essential role in promoting long-term health and preventing future health problems. This study is planned to evaluate the effect of health education on children's healthy lifestyle skills.
NCT07269496
The trial is to compare the bioavailability of the original European Lasix (furosemide injection) administered in accordance with its prescribing information with the same dose of a novel furosemide formulation developed for this subcutaneous administration. The study will also investigate PK and PD of these regimens.
NCT07546201
The aim of this study is to compare the motor imagery abilities of patients with migraine to those of healthy individuals, and to examine the relationship between motor imagery and proprioception (cervical and trunk), balance, body awareness, anxiety, and depression levels. Additionally, the study aims to investigate the relationship between proprioception and balance in patients with migraine. Motor imagery abilities of patients with migraine and healthy control subjects (aged 18-65 years; planned sample size: 68 individuals in each group, 68 migraine patients and 68 healthy participants) will be assessed using the Movement Imagery Questionnaire-3, the Motor Imagery Ability Test, mental chronometry, mental rotation tasks, and functional MRI (fMRI) during motor imagery of different tasks. Additionally, in patients with migraine, cervical and trunk proprioception, balance, body awareness, the Tampa Scale for Kinesiophobia, the Vertigo Symptom Scale, the Dizziness Handicap Inventory, and the Hospital Anxiety and Depression Scale will be evaluated. 1. Hypothesis H0: There is no difference in motor imagery abilities between patients with migraine and healthy controls. H1: There is a difference in motor imagery abilities between patients with migraine and healthy controls. 2. Hypothesis H0: There is no relationship between motor imagery abilities and proprioception in patients with migraine. H1: There is a relationship between motor imagery abilities and proprioception in patients with migraine. 3. Hypothesis H0: There is no relationship between proprioception (cervical/trunk) and balance in patients with migraine. H1: There is a relationship between proprioception (cervical/trunk) and balance in patients with migraine. 4. Hypothesis H0: There is no relationship between motor imagery abilities and body awareness, anxiety, and depression in patients with migraine. H1: There is a relationship between motor imagery abilities and body awareness, anxiety, and depression in patients with migraine.