Healthy volunteers play a critical role in clinical trials by serving as control subjects to establish baseline data for evaluating new treatments, medical devices, and diagnostic procedures. Clinical research involving healthy individuals commonly e...
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Found 1341 Actively Recruiting clinical trials
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Researchers are working to create risk prediction models that help identify patients with a high risk of developing serious cardiovascular problems. The study focuses on individuals with structural, rhythm-related, or inflammatory cardiovascular diseases and aims to improve early detection of those at risk. This observational study is sponsored by the Medical University Innsbruck and includes adults 18 years and older. Participants in this study have their clinical data and risk factors recorded to better understand their cardiovascular condition. There are no specific treatments or interventions given as part of the study since it is observational. The study will follow patients for up to four years to observe outcomes related to cardiovascular events and hospitalizations. During the study, researchers will monitor events such as cardiovascular mortality, stroke, heart attacks, hospital stays due to heart failure, and other severe heart-related conditions. Participants will be assessed regularly through clinical data collection without additional procedures or treatments. The study aims to gather detailed information over time to improve risk assessment and patient care for cardiovascular diseases.
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Researchers are evaluating the "One All" curriculum, which uses the sport Ultimate Frisbee to improve mental health resilience among young tribal people in two communities in South India. The study aims to see if this intervention is feasible and acceptable while assessing its effectiveness in building resilience and mental well-being. The research involves young tribal adults aged 12 to 25 years from Gudalur in Tamil Nadu and BR Hills in Karnataka. The intervention includes a three-year curriculum delivered by trained community facilitators who adapt the program to fit local needs. Participants attend two or more sessions each week, each lasting about one and a half hours. Sessions involve warm-up activities, drills, ultimate frisbee games with modified rules, and group discussions called spirit circles. The program focuses on developing skills such as self-management, social awareness, empathy, identity building, and conflict resolution. Participants undergo assessments before the program starts, after 12 months, and after 18 months. These include questionnaires measuring resilience (Child Youth Resilience Measure and Connor-Davidson Resilience Scale), mental health (GHQ12), and self-efficacy. Researchers will track attendance and reflections from sessions but will not access medical records. The study involves a baseline interview collecting socioeconomic data and assigns participants codes to protect privacy. Total participation lasts at least 18 months to evaluate outcomes.
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This study aims to evaluate the effects of "Xuong tan lac than" exercise, a traditional exercise in Vietnamese exercise, on joint range of motion and muscle endurance in healthy volunteers. Reduced joint mobility and decreased muscle endurance are common issues that may affect functional performance and quality of life. Traditional exercise methods are increasingly used to improve musculoskeletal function. However, scientific evidence regarding the effects of specific traditional exercises, including "Xuong tan lac than", remains limited. This study is designed as a pre-post intervention study. Healthy volunteers will be recruited and assessed at baseline for joint range of motion and muscle endurance. Participants will then be trained to correctly perform the "Xuong tan lac than" exercise: * Preparation: Participants stand in a semi-squat position with both hands interlocked and palms facing downward. * Step 1 (Warm-up): Participants inhale deeply while raising both arms overhead. * Step 2 (Movement): While maintaining inhalation, participants perform alternating lateral trunk movements. The trunk bends to the left with the left leg extended and the right leg slightly flexed, then alternates to the opposite side. Each side is repeated 2 - 6 times. * Step 3 (Exhalation): Participants exhale fully while engaging the abdominal muscles and lowering the arms. * Step 4 (Rest): Participants return to a normal breathing pattern and the initial position. The sequence is repeated 2 - 6 times. The intervention consists of practicing the exercise for 12 weeks, 5 days per week, once daily. Each session follows a standardized protocol to ensure consistency among participants. Assessments will be conducted at baseline and after 2, 4, 8, and 12 weeks of intervention. Range of motion will be measured using the Noraxon (Myomotion/MyoResearch) system, which utilizes inertial measurement unit (IMU) sensors attached to the body to provide objective and accurate assessment of joint movement. The primary outcomes include changes in joint range of motion (cervical spine, lumbar spine, shoulder, elbow, wrist, knee, and ankle) and muscle endurance around these joints.
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Researchers are conducting the 100-Year Human Aging Study, an observational trial designed to follow participants over their lifespans to investigate which health measurements can predict mortality, serious diseases, and functional disability. The study aims to validate many longevity measures that currently lack prospective evidence by tracking physiological, cognitive, social, and environmental factors that change with aging. This research will generate important data to improve understanding of aging and longevity medicine. Participants undergo comprehensive multi-system clinical screenings including tests like cardiopulmonary exercise testing, body composition assessment by DEXA, echocardiography, electrocardiography, spirometry, neurocognitive testing, sensory assessments, metabolic testing, and detailed medical and social histories. The study allows for different levels of participation, from single tests to full two-visit screening batteries, and encourages repeat testing to capture health changes over time. During the study, participants receive individualized reports including investigational estimates of biological age and predicted cause of death. Researchers collect data on mortality, serious health events, chronic diseases, functional ability, and lifestyle changes through periodic follow-up over many years, potentially up to 100 years. This extensive data collection helps evaluate how well these measurements predict aging outcomes. All data are stored in raw form for future analysis and participants are supported with ongoing contact and opportunities for repeat assessments.
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Researchers are developing advanced four-dimensional magnetic resonance imaging (4D-MRI) techniques to create detailed, moving images of the lungs and liver in adults. This imaging method produces three-dimensional movies that capture organ motion during breathing, which is important for improving radiation therapy planning for lung and liver cancer patients. The study aims to overcome challenges in current imaging methods to better target tumors that move with respiration. The study includes two main parts: technical development of ultra-quality 4D-MRI in healthy volunteers and evaluation of the technique in cancer patients. This involves creating a new MRI pulse sequence and image reconstruction process to achieve high spatial and temporal resolution with minimal motion artifacts. Researchers will compare the new 4D-MRI method to existing imaging and registration techniques in both healthy volunteers and patients with lung or liver tumors undergoing radiation therapy. Participants will undergo a single imaging session lasting up to two hours involving 4D-MRI scans. Healthy volunteers and cancer patients will be assessed to measure image quality and accuracy of motion modeling. The study will monitor how well the 4D-MRI technique captures tumor movement compared to current methods. The total participation time is limited to the imaging session, with no long-term follow-up mentioned.
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Researchers are evaluating the use of [18F]FT8, a diagnostic imaging agent, for detecting amyloidosis, including cardiac amyloidosis. This study aims to assess the safety and effectiveness of [18F]FT8 PET/CT scans in visualizing AL amyloid deposits in the heart, comparing its performance to established clinical methods such as echocardiography, MRI, and laboratory tests. The goal is to establish a reliable PET imaging protocol for direct diagnosis and differentiation of AL amyloidosis. Participants will receive a single intravenous injection of 10 b1 3 mCi of [18F]FT8, followed by a PET/CT scan to measure organ uptake using the standardized uptake value (SUV). The study includes both healthy volunteers and amyloidosis patients. The imaging and injection occur only once, and no additional treatments are administered. Clinical assessments and lab tests are done before and after the scan to monitor safety and gather diagnostic information. During the study, participants will undergo physical exams, cardiac function assessments, and tests of liver and kidney function before and after the PET/CT scan. Researchers will monitor safety from the time of injection up to seven days afterward, and evaluate organ uptake and biodistribution of [18F]FT8 at the time of the scan. Radiation exposure is also measured. Total participation involves a single visit for imaging and assessments, with follow-up safety monitoring over one week.
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Researchers are investigating the feasibility of collecting and expanding T lymphocytes from both cancer patients and healthy volunteers. The study aims to select specific immune cells marked by PD-1 and CTLA4 from the blood and assess their ability to kill tumor cells outside the body. This observational study includes adults with any stage of solid tumors, healthy volunteers, and individuals with COVID-19, with special provisions for pediatric participants aged 5 to 17 years. Participants are divided into three groups: cancer patients receiving routine care, healthy volunteers who help optimize study procedures, and COVID-19 patients whose participation may be limited based on their condition. Adults and pediatric participants undergo blood and other minimally invasive biospecimen collections, including leukapheresis for eligible adults, to obtain immune and tumor cells. The study supports quality control, assay development, and device validation across cohorts. During the study, participants provide biospecimens such as blood, saliva, urine, and swabs. Researchers will analyze these samples to evaluate immune cell function and develop an ex-vivo device platform for culture, immune testing, and biobanking. The study collects clinical information and laboratory test results, including infection status and organ function markers. Participation requires informed consent and may include repeated sampling over time to support ongoing research efforts.
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Researchers are conducting a Phase I clinical trial to evaluate the safety, tolerability, and pharmacokinetic profile of AK0610 in healthy Chinese adults aged 18 to 50. The study is randomized, double-blind, and placebo-controlled, focusing on single-dose administration with dose escalation and expansion phases. The trial involves healthy volunteers to understand how the body processes AK0610 and to monitor any side effects. The trial has two parts: a dose-escalation phase with five cohorts receiving increasing doses of AK0610 or placebo either intramuscularly or intravenously, and an expansion phase with two additional cohorts based on pharmacokinetic data. Doses range from 100 mg to 3000 mg, administered once on Day 1. Participants receive either AK0610 or placebo in a 3:1 ratio in all cohorts. Participants undergo a screening period from Day -29 to Day -1, followed by the dosing on Day 1 and an inpatient observation period until Day 8. Afterward, there is a blinded follow-up period lasting until Day 181, with those receiving AK0610 entering an open-label period from Day 182 to Day 361. Researchers will monitor adverse events, measure serum drug concentrations, and assess immunogenicity and RSV-neutralizing activity throughout the study.
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Researchers are evaluating the safety, tolerability, and how the body processes SPH9788 tablets in healthy adult volunteers aged 18 to 45 years. This randomized, double-blind, placebo-controlled Phase I study aims to understand the effects of single and multiple increasing doses of SPH9788 in a healthy Chinese population. The study is sponsored by Shanghai Pharmaceuticals Holding Co., Ltd and focuses on monitoring any treatment-emergent or serious adverse events during the trial period. Participants will receive either SPH9788 tablets or a matching placebo, both given orally. The study involves administering single and multiple ascending doses to assess safety and pharmacokinetics, including measures such as time to maximum concentration (Tmax), maximum concentration (Cmax), and area under the curve (AUC). These treatments are carefully monitored over approximately one year. During the study, volunteers will undergo regular assessments to track safety and drug processing in the body. Researchers will observe adverse events and collect pharmacokinetic data through blood tests at set intervals. Participants must follow lifestyle restrictions and contraceptive use during the trial and for six months afterward. The total duration of participation includes screening, treatment, and follow-up to ensure thorough safety evaluation.
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Researchers are conducting the GENESIS clinical study to map the HLA genomic region in the Greek population and explore its possible links with various underlying diseases. This non-interventional, multicenter study aims to provide a pilot map of genetic variation in HLA that may be useful in medical research and clinical applications related to selected diseases. The study plans to include 12,000 participants over a total duration of 36 months. Each participant will attend one visit at a participating site during which they will provide demographic data, lifestyle information such as smoking and alcohol use, blood pressure measurements, details on diagnosed diseases and treatments, and recent laboratory test results if available. Buccal swab samples will be collected from each participant to extract DNA for HLA genotyping analysis. Selected samples will undergo further whole genome sequencing to investigate associations with autoimmune diseases. Participants will receive a personalized ancestry report after analysis completion. During the study visit, data collection includes demographic and health information, as well as laboratory and clinical test results from the past year. The genetic material from buccal swabs will be stored and processed for genetic analysis. Researchers will measure allele frequency of HLA alleles in the Greek population and assess the prevalence and risk associations of selected HLA-related diseases. The study's total duration is 36 months with results available at the end of this period.
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