Clinical Research Directory
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72 clinical studies listed.
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Tundra lists 72 Healthy Subjects clinical trials. Each listing includes eligibility criteria, study locations, and direct links to research sites in the Tundra directory.
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NCT07415759
Imaging of Electrical Properties by MRI: Investigation of Age-Related Changes
The goal of this study is to build a database of personalized EP (Electrical Properties) maps (accounting for age, anatomical location, and tissue complexity), obtained via MRI, to improve electromagnetic safety assessments, especially in the context of MRI. The EP values derived from this study are expected to be more accurate than current literature values, leading to more realistic specific absorption rate (SAR) modeling and improved patient safety. To investigate age-related differences, the study will include three distinct age groups.
Gender: All
Ages: 6 Years - Any
Updated: 2026-04-08
1 state
NCT07505043
First-in-Human Study of ISH0688: Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics
ISH0688 is a human IgG1 Fc-FGF21 fusion protein. The objectives of the planned clinical investigation will be to evaluate the safety, tolerability, pharmacokinetics (PK), and pharmacodynamics (PD) of single- and multiple-ascending doses of ISH0688 via subcutaneous injection.
Gender: All
Ages: 18 Years - 75 Years
Updated: 2026-04-01
1 state
NCT01568697
Oral Bacteria and Immune System Problems Involved in Gum Disease (Periodontitis)
Background: \- Gum disease is a condition in which the tissue around the tooth root becomes swollen and infected. This condition can cause tooth loss if it is not treated. Who gets gum disease and how bad it will be depends on (1) the different bacteria in the mouth and (2) how the immune system of an individual handles these bacteria. Researchers want to look at the oral bacteria and genetic immune problems of different people to learn how these affect gum disease and other conditions of the mouth. Objectives: \- To study how immune system problems may lead to problems in the mouth, including gum disease. Eligibility: * Children and adults at least 7 years of age who have genetic problems with their immune system. * Healthy adults that have periodontal disease * Health adults that do not have periodontal disease Design: * This study will involve a screening visit and a study visit. * Participants will be screened with a medical history, blood work and a full oral and dental exam, including dental x-rays and photos. * The study visit will involve collection of blood, urine, and other samples, including saliva, plaque, and gum swabs. Any abnormal tissue will sampled for a biopsy. Additional oral and dental exams will be performed. Participants will also answer questions about any current medical or dental problems.
Gender: All
Ages: 7 Years - 100 Years
Updated: 2026-04-01
1 state
NCT06342713
A Study to Evaluate the Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of Single- and Multiple-Ascending Doses and Food Effect of BGB-45035 in Healthy Participants and in Adults With Autoimmune Dermatological Diseases
This study is the first-in-human (FIH) study of BGB-45035. The study will evaluate the safety, tolerability, pharmacokinetics, and pharmacodynamics of BGB-45035 with both a single dose and multiple doses administered at different dose levels in healthy participants, followed by a Part E to evaluate the safety and tolerability of BGB-45035 in adults with autoimmune dermatological diseases like atopic dermatitis (AD) and prurigo nodularis (PN). An additional biomarker cohort will be evaluated in Part F. Study details include: * The study duration will be up to 24 months. * The treatment duration will be up to 14 days for Parts A-D, up to 12 weeks for Part E, and up to 3 weeks for Part F. * Safety follow-up 30 days after last dose of study drug.
Gender: All
Ages: 18 Years - 75 Years
Updated: 2026-03-18
10 states
NCT07470125
Bioequivalence (BE) Study Between YHP2511 and YHP2511A in Healthy Volunteers
A randomized, open-label, single-dose, 2-sequence, 2-period, crossover clinical trial to investigate the bioequivalence between YHP2511 and YHP2511A in healthy volunteers
Gender: All
Ages: 19 Years - 55 Years
Updated: 2026-03-13
NCT06014515
Single-tracer Multiparametric PET Imaging
The overarching goal of this project is to develop and evaluate a single-tracer multiparametric positron emission tomography (PET) imaging solution for simultaneous imaging of blood flow and glucose metabolism using 18F-fluorodeoxyglucose (FDG) alone. The investigators working hypothesis is that quantitative blood flow can be extracted from dynamic 18F-FDG PET data by use of tracer kinetic modeling, in addition to glucose metabolism that 18F-FDG is conventionally used for.
Gender: All
Ages: 18 Years - Any
Updated: 2026-03-10
1 state
NCT07461428
EVALUATİON OF THE EFFECTİVENESS OF A MODEL-BASED HYPNOBREASTFEEDİNG EDUCATİON PROGRAM GİVEN TO PRİMİPAROUS PREGNANT WOMEN
This randomized controlled trial aimed to evaluate the effectiveness of an education program based on the Information-Motivation-Behavioral Skills (IMB) Model and grounded in the philosophy of hypnobreastfeeding provided to primiparous pregnant women.
Gender: FEMALE
Ages: 18 Years - Any
Updated: 2026-03-10
2 states
NCT04206540
Effect of Stimulation on the Vagus Nerve
The vagus nerve is a largely-internal nerve that controls many bodily functions, including stomach function. Investigators hope that electrically stimulating the nerve around the external ear will also stimulate the internal vagus nerve. If it does, then investigators hope that this will help the treatment of patients with nausea and vomiting and disordered stomach function. Investigators also hope to be able to measure the activity of the vagus nerve when it is stimulated in other ways. This could help investigators learn more about studying this nerve in the future.
Gender: All
Ages: 18 Years - 80 Years
Updated: 2026-03-06
1 state
NCT04645628
Optimization of the Acquisition Sequence to Improve the Quality and Comfort of Magnetic Resonance Imaging Exam
The purpose of this study is to evaluate the optimization of MRI acquisition sequences.
Gender: All
Ages: 18 Years - Any
Updated: 2026-03-04
NCT07428785
Pulmonary and Total Blood Volume in COPD
Background Patients with chronic obstructive lung disease (COPD) suffer from a progressive loss of lung function that leads to poor quality of life, and often invalidity and early death. This is markedly affected by a reduced exercise capacity and dyspnoea, but the underlying mechanisms are unknown. In the present study, we aim to investigate whether this may involve a reduced pulmonary blood volume secondarily to a reduced total blood volume. Methods Design: Prospective matched comparative study Intervention: None Outcomes: The primary outcome is pulmonary blood volume estimated to total blood volume ratio between patients with COPD and healthy controls individually matched for age, sex, and height. Statistical design: All statistical analyses will be performed using R statistical software version 4.1.1 (R Project for Statistical Computing) within RStudio statistical software version 1.4.1717 (RStudio), and a two-tailed p\<0.05 will be considered statistically significant. Inspection of normality and variance homogeneity will be done by creating qq-plots and histogram. Regulatory considerations: This study will be submitted for approval by Regional Ethical Committee. Perspective: This study will help uncover fundamental aspects of the pathophysiology of COPD.
Gender: All
Ages: 45 Years - 80 Years
Updated: 2026-02-24
NCT02417714
Prospective Evaluation of Next Generation CT Reconstruction (NextGenIR)
Background: \- Computed Tomography (CT) is a scan that makes detailed pictures of the body. It uses radiation to do that. In 2011, about 85.3 million CT scans were done in the United States. But there is growing concern about the health effects of radiation. There are new and different ways to make CT pictures that use less radiation. Researchers want to learn whether these new methods create images that are similar to images from a traditional CT. Objective: \- To learn if new CT imaging methods with less radiation make images that are similar to traditional ways. Eligibility: \- Adults 18 years of age and older who are scheduled for a CT of the chest, abdomen and pelvis with contrast. Design: * Researchers will review participants medical records to see if they can be in this study. * Participants may have blood drawn from an arm vein by a needle stick. The blood will be used to make sure they can be in this study and that it is safe for them to have contrast. * During the participants CT scan appointment, one extra scan will be done using low radiation methods. * During a CT scan, the participant lies on a table. A large x-ray machine takes pictures of the body.
Gender: All
Ages: 18 Years - 99 Years
Updated: 2026-02-17
1 state
NCT07395609
High Frequency Stimulation to Improve Cognition, Mobility, and Affect in Individuals With Subjective Cognitive Decline
The goal is to determine whether three months of at least three times / week of sensory flicker stimulation improves cognition, mobility, and affect in older adults with Subjective Cognitive Decline (SCD), relative to an SCD control group receiving white noise sensory stimulation. Investigators will also determine whether the intervention slows cortical thinning and declines in brain functional network segregation and changes in blood biomarkers of Alzheimer's Disease (AD).
Gender: All
Ages: 65 Years - 89 Years
Updated: 2026-02-09
1 state
NCT07209423
Shoulder Strength in Baseball Players
The purpose of this graduate student research study is to transform the existing concepts surrounding shoulder strength in baseball players, particularly in the context of retroverted shoulders.
Gender: All
Ages: 15 Years - 22 Years
Updated: 2026-02-04
NCT07181369
A Phase 1 Study of GTX-B001 in Healthy Subjects and Patients With Chronic Inducible Urticaria
This is a first-in-human study aimed at determining the safety of a single dose of GTX-B001 in healthy participants and in people with chronic inducible urticaria.
Gender: All
Ages: 18 Years - 75 Years
Updated: 2026-01-30
NCT07219940
A Study to Investigate HLA-G Targeted Exosome (SOB100) in Healthy Subjects
The investigational drug, SOB100, is an HLA-G targeted exosome equipped with a nanobody namely anti-HLA-G VHH on the exosome membrane. This is a Phase I dose escalation study to exam the tolerability, safety, and pharmacokinetics in healthy subjects.
Gender: All
Ages: 18 Years - Any
Updated: 2026-01-26
1 state
NCT06145646
Intramuscular Temperature on the Echo-textural Characteristics
Echointensity and echotexture have been used as a physiological marker for changes in skeletal muscle quality and structure caused by physical training, low activity, ageing and some neuromuscular disorders. However, there are some influencing factors on muscle echo-intensity and echotexture, such as temperature, which may not be taken into account when performing an ultrasound assessment and may alter the results. This study aims to investigate the effects of muscle temperature on echointensity and other 2nd order echotextures variables such as homogeneity, contrast, correlation and entropy of muscle tissue, in order to gain a better understanding of this correlation and minimise its influence, which would allow greater precision in the use of muscle ultrasound as a diagnostic tool. The methodology of this study includes firstly the acquisition of ultrasound images of the vastus lateralis muscle. This acquisition will be performed during the continuous recording of muscle temperature, carried out during a passive cooling process after 20 min of heating using microwave equipment. In addition, to standardise the results, a correction factor will be calculated to compensate for the influence of subcutaneous adipose tissue thickness on echogenicity and echotexture.
Gender: All
Ages: 18 Years - 65 Years
Updated: 2026-01-22
1 state
NCT07350538
The Critical Link Between Gut Microbiome Dysfunction, Cravings and Relapse: RECLAIM-GUT TRIAL
The human gut contains a vast community of microorganisms-including bacteria, viruses, and fungi-collectively known as the gut microbiota. This ecosystem co-evolves with humans and is shaped by diet, environment, and lifestyle. A balanced microbiota is essential for health, supporting immune function, regulating metabolism, and controlling intestinal inflammation. When this balance, or homeostasis, is disrupted, dysbiosis can occur, which has been linked to conditions such as inflammatory bowel disease, obesity, type 2 diabetes, cardiovascular disease, cancers, and neurological disorders. Evidence also shows that substance abuse can induce dysbiosis by altering microbial diversity, disrupting microbial composition, and reducing levels of key metabolites like short-chain fatty acids. Growing research on the gut-brain axis suggests that these microbial imbalances may influence mental health by affecting neurochemical signalling, contributing to disorders such as depression and anxiety. While synthetic drugs remain central to modern medicine and provide targeted, effective treatments, they often fall short when illnesses stem from disturbances within the microbial ecosystem. Because many conditions related to gut dysbiosis are not caused by a single malfunctioning molecule, traditional drugs may manage symptoms without restoring microbial balance. Some treatments, particularly broad-spectrum antibiotics, may even exacerbate dysbiosis by eliminating beneficial microbes. This has led to increasing interest in probiotics, prebiotics, and postbiotics. Probiotics are beneficial live microbes, prebiotics are non-digestible compounds that help these microbes grow, and postbiotics are their health-promoting byproducts. Although promising, these interventions are still considered supplements rather than formal medicines. Studying stool samples allows researchers to assess gut health by measuring bacterial and metabolic contents. Advances in this field require precise, efficient tools. Perseus Biomics' DynaMAP™ technology enables strain-level microbiome profiling. This study aims to validate DynaMAP™ against shotgun metagenomic sequencing and assess personalized prebiotic interventions based on individual microbiome profiles.
Gender: All
Ages: 18 Years - 65 Years
Updated: 2026-01-20
1 state
NCT07350629
Noninvasive Real-Time Arterial Waveform Monitoring for Cardiovascular Disease Assessment
The goal of this observational study is to learn whether noninvasive real-time arterial waveform monitoring can be used to assess cardiovascular diseases in adults. The main question it aims to answer is: Can photoacoustic imaging accurately capture arterial waveforms from patients' fingers? Can features extracted from the arterial waveforms reflect the type and severity of cardiovascular diseases? Participants will be asked to place their fingers into the imaging device, where their finger arterial pulse information will be noninvasively recorded.
Gender: All
Ages: 18 Years - 80 Years
Updated: 2026-01-20
1 state
NCT07331389
A Drug-Drug Interaction Study of HDM1002 and Metformin, Empagliflozin, Midazolam, Valsartan, and Warfarin
The purpose of this study is to characterize the drug-drug intereaction of HDM1002 and metformin, empagliflozin, midazolam, valsartan, and warfarin in overweight/obese adult subjects. The safety and tolerability of HDM1002 with metformin, empagliflozin, midazolam, valsartan, and warfarin when given separately or together will also be evaluated
Gender: All
Ages: 18 Years - 45 Years
Updated: 2026-01-09
NCT02150889
Training Effects on Fuel Metabolism
The investigators are interested in how skeletal muscle processes fat and how this may affect insulin resistance. This is an important question since insulin resistance predates and predicts type 2 diabetes. The investigators are especially interested in learning about the effects of weight and training on insulin resistance. The investigators will study people before and after supervised aerobic or yoga training to identify differences in resting fat and sugar metabolism which may lead to differences in insulin resistance. The investigators will test these differences using stable isotopes, and the use of these stable isotopes is experimental. Overweight/Obese Group: Eight visits will be required at the University of Minnesota Clinical Research Unit. Four visits will be done before training (screen and 3 pre-training visits), 1 visit during the training, and 3 post-training visits will be done. In between, the training will take about 16 weeks and will be a supervised treadmill program. Lean/Trained Group: Four visits will be required at the University of Minnesota Clinical Research Unit (screen and 3 study visits).
Gender: All
Ages: 18 Years - 40 Years
Updated: 2026-01-08
1 state
NCT07134478
Clinical Study to Evaluate the Effect of Rifampicin on the Pharmacokinetics of HSK31858 in Healthy Subjects
This is a single-center, open-label, two-period, fixed-sequence clinical study to evaluate the effect of Rifampicin on the pharmacokinetics of HSK31858 in healthy subjects
Gender: All
Ages: 18 Years - 45 Years
Updated: 2025-12-31
NCT07134465
Clinical Study to Evaluate the Effect of Itraconazole on the Pharmacokinetics of HSK31858 in Healthy Subjects
This is a single-center, open-label, two-period, fixed-sequence clinical study to evaluate the effect of Itraconazole on the pharmacokinetics of HSK31858 in healthy subjects
Gender: All
Ages: 18 Years - 45 Years
Updated: 2025-12-31
NCT07304791
This is a Phase 1, Randomized, Single-blind, Placebo-controlled Study to Assess the Safety, Pharmacokinetics (PK), and Pharmacodynamics (PD) of BEAM-103 in Healthy Subjects
The purpose of this Phase I single ascending dose study is to evaluate the safety, pharmacokinetics (PK), and pharmacodynamics (PD) of BEAM-103 in healthy subjects between the ages of 18 and 55. The main questions the study aims to answer are: * Safety and tolerability of BEAM-103 * The pharmacokinetic (PK) profile and pharmacodynamic (PD) characteristics of EAM-103 * The effect of BEAM-103 on hematologic parameters * To assess the immunogenicity of BEAM-103 Researchers will determine and establish the therapeutic window of the antibody and select optimal doses for future trials in patients. Subjects will: * Be asked to participate in the study for a duration of 4-5 months total * Be asked to sign informed consent * Be assessed for eligibility * Provide medical and medication history * Receive a single intravenous infusion of BEAM-103 or placebo on study Day 1 according to their assigned cohort * Be followed up to 4 months after infusion
Gender: All
Ages: 18 Years - 55 Years
Updated: 2025-12-26
NCT07295535
Analysis of the Specificity and Persistence of Nasal Immune Responses to Respiratory Viral Antigens in Immunocompromised and Healthy Cohorts
The goal of this observational study is to characterize nasal mucosal immunity to respiratory viruses, such as SARS-CoV-2, in immunocompromised individuals and healthy volunteers. The study involves adults of any sex, between 18 and 90 years old, including both immunocompromised patients with medical conditions or treatments that can affect immune cell functions and healthy controls with no underlying medical conditions declared, no clinical history of immunodeficiency or use of immunosuppressive medications. Researchers will compare immunocompromised participants to healthy volunteers to determine how underlying immunodeficiency and related treatments affect immune cell composition and virus-specific responses.
Gender: All
Ages: 18 Years - 90 Years
Updated: 2025-12-19
1 state