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Предстои набиране Фаза 2

Intranasal Dexmedetomidine for Acute Anxiety State in Adults: A Randomized Trial

Acute Anxiety States

This study employs a randomized, double-blind, placebo-controlled clinical trial design to evaluate the efficacy and safety of dexmedetomidine hydrochloride nasal spray in the treatment of acute anxiety in adults. Study Protocol: Patients meeting the criteria for acute anxiety who provided informed consent and met the inclusion and exclusion criteria were randomized in a 1:1 ratio to the placebo group or the study drug group and entered the double-blind study. Upon enrollment, baseline assessments were conducted to evaluate the number of accompanying symptoms, subjective anxiety severity (NRS), STAI-S-6, CGI-S, and RASS. Immediately following these assessments, patients received a nasal spray of 30 μg of dexmedetomidine or an equal-volume placebo; the time of administration was recorded as 0 minutes. At 15, 30, 45, 60, 90, and 120 minutes post-administration, the NRS for subjective anxiety severity, CGI-S, and CGI-I were assessed. The count of accompanying symptoms, STAI-S-6, and RASS were re-assessed only at 15, 30, and 120 minutes post-administration. In addition, vital signs (heart rate, oxygen saturation, and blood pressure) were assessed and recorded at baseline (prior to administration) and at 15, 30, 45, 60, 90, and 120 minutes post-administration. Venous blood samples were collected prior to administration and 90-120 minutes post-administration to measure biological markers. Adverse events were monitored during a 7-day follow-up period after treatment.

Начало: 30.04.2026 Край: 31.07.2027 Възраст: 18–65 г.

Tongji University NCT07550881

Предстои набиране Фаза 3

SCRT + Chemo Targeted Immuno-neoadjuvant Therapy for High-risk pMMR/MSS RC

Rectal Adenocarcinoma High-Risk Cancer MSS

To explore the efficacy and safety of an intensified treatment regimen consisting of short-course radiotherapy followed by mFOLFOX6 chemotherapy combined with precise targeted therapy (based on RAS/BRAF status: cetuximab for wild-type, bevacizumab for mutant) and a PD-1 monoclonal antibody, compared with short-course radiotherapy followed by mFOLFOX6 chemotherapy alone, in high-risk locally advanced pMMR/MSS rectal adenocarcinoma through a prospective, randomized controlled phase III clinical study, providing high-level evidence-based medical evidence to establish a superior neoadjuvant treatment strategy for this population.

Начало: 30.04.2026 Край: 30.04.2029 Възраст: 18–75 г.

China Sixth Affiliated Hospital, Sun Yat-sen University NCT07549399

Предстои набиране Фаза 1

A Study of IBI3033 in Moderate-to-Severe Atopic Dermatitis

Atopic Dermatitis

This is a Phase 1, randomized, double-blind, placebo-controlled, multiple ascending dose study designed to evaluate the safety, tolerability, and pharmacokinetics of IBI3033 in subjects with moderate-to-severe atopic dermatitis (AD). Approximately 16 eligible adult participants will be enrolled and sequentially assigned to one of two dose cohorts. Within each cohort, participants will be randomized in a 3:1 ratio to receive IBI3033 or matching placebo. The study consists of a screening period (up to 4 weeks), a 12-week treatment period, and a 4-week safety follow-up period. The primary objective is to assess safety and tolerability based on the incidence of adverse events and serious adverse events. Secondary objectives include characterization of pharmacokinetics and immunogenicity. Exploratory assessments include pharmacodynamic biomarkers and preliminary efficacy outcomes such as changes in Eczema Area and Severity Index (EASI) and Investigator's Global Assessment (vIGA-AD) scores.

Начало: 30.04.2026 Край: 25.03.2027 Възраст: 18–75 г.

China Innovent Biologics (Suzhou) Co. Ltd. NCT07549984

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Continuous Temperature Monitoring (CTM) for Cytokine Release Syndrome (CRS), an Immune-Related Adverse Event

Cytokine Release Syndrome Neoplasms Lymphoma Precursor Cell Lymphoblastic Leukemia-Lymphoma +12

Background: Drugs or cell therapies to treat cancer can sometimes cause cytokine release syndrome (CRS). That is, the body makes too many cytokines after treatment. Cytokines are proteins that play a role in the immune system. CRS can cause fever, chills, fatigue, low blood pressure, or breathing problems. Researchers want to know if continuously monitoring a person s body temperature can help reduce the chance of getting serious CRS. Objective: To learn if an approved patch called TempTraq can detect fever before serious CRS develops. Eligibility: People aged 18 years and older with cancer who are staying at the NIH clinic for treatment with drugs or cell therapies. Design: Participants will receive TempTraq patches and a special NIH tablet. The TempTraq is a small patch applied to clean, dry skin under the arm. It continually monitors body temperature and sends the data to an application on the tablet. Participants will wear the patch most of the time they are admitted to the hospital. They could wear it for up to 15 days. The patch monitoring does not replace regular temperature checks, all participants will still have have their regular temperature checks as part of their treatment plan. Participants may also opt to use VitalTraq, another application on the tablet. They will hold the screen up to their face for about 1 minute. VitalTraq uses the camera in the tablet to measure blood pressure, heart rate, and breathing. They will do this once per day while they are in the clinic; they may do it more often if they have a fever or feel unwell. Blood may be drawn for research. Participants will be asked about their experience within 1 week after TempTraq is removed. Participants who choose to use the patch, complete its use, and return at a later date for another treatment or study, may be able to re-enroll to have the patch used again.

Начало: 29.04.2026 Край: 18.08.2029 Възраст: 18–120 г.

United States National Cancer Institute (NCI) NCT07499128

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The Mindful Kidney: Supporting Mindfulness for Adults With Chronic Kidney Disease

Chronic Kidney Disease

This study tests a digital mindfulness app called Calm Health among adults with chronic kidney disease (CKD). Participants will use the app for 6 weeks while wearing a wrist sensor that tracks sleep, physical activity, heart rate, and other health signals. The study will measure how acceptable and feasible the app is, and whether it may improve stress, anxiety, and quality of life. Participants will also receive health coaching and a personalized report showing how their mindfulness practice relates to their health data.

Начало: 29.04.2026 Край: 30.11.2026 Възраст: 18–80 г.

United States Yale University NCT07541495

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Evaluation of the Clinical Spectrum of Diabetes and Obesity in Youth and Adults

Obesity Diabetes Metabolic Disorders

Background: Diabetes and obesity are chronic diseases. They can affect blood flow and how the body processes nutrients, and complications over time can lead to early death. Diabetes can affect children as well as adults, but the disease seems to be more severe and to progress faster when it appears in younger people. Researchers want to understand more about how diabetes and obesity develop and change over time. Objective: To collect data and samples regularly from people with obesity and diabetes. Eligibility: People aged 8 to 65 years. They must be overweight or obese; or have high blood sugar; or have problems with how their body uses food for energy. Design: Participants will have additional procedures during routine care visits at the NIH clinic. Data collected for the study will include the following: Information from the participant s medical chart will be kept for research. Questionnaires will ask about participant s eating habits, feelings, sleep, and substance use. They will take 30 to 60 minutes. Care providers will address any issues revealed in these surveys. Blood, saliva, urine, and stool samples will be collected. Samples may be used for genetic tests. Data and samples will be kept for future research. Participants may remain in the study up to 30 years.

Начало: 29.04.2026 Край: 30.04.2055 Възраст: 8–65 г.

United States National Institute of Diabetes and Digestive and Kidney NCT07388537

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CelluJuve® for the Treatment of Moderate to Severe NLFs

Nasolabial Fold Wrinkles

Single-center, open-label proof of concept study assessing the safety and effectiveness of CelluJuve® for the treatment of moderate to severe NLFs

Начало: 29.04.2026 Край: 31.07.2028 Възраст: от 22 г.

United States Spiderwort Biotechnologies Inc. NCT07545980

Предстои набиране Фаза 1

Syk Inhibition in MItigating Lung Allograft Rejection (SIMILAR): A Trial to Evaluate the Safety and Tolerability of Fostamatinib in Lung Transplant Patients With Donor-Specific Antibodies

Lung Transplantation

Background: People who have lung transplants often survive 6 or 7 years. But some people develop donor-specific antibodies (DSA) after their transplants; antibodies are proteins that attack foreign invaders in the body. Antibodies typically kill viruses and other agents that can cause disease. But when the antibodies attack a transplanted organ, they can cause the body to reject the new tissues. People who develop DSA after a transplant have a higher risk of death within 1 year. Objective: To test a drug called fostamatinib in people who develop DSA after a lung transplant. Eligibility: Adults aged 18 and older who developed DSA after a lung transplant. Design: Participants will continue with their standard care after a transplant. Fostamatinib is a pill taken by mouth. Some participants will take the study drug along with their standard care; others will take a placebo. A placebo is a pill that looks just like the real drug but contains no medicine. All participants will take 1 pill per day for 2 weeks. Then they will take 2 pills per day for the next 6 weeks. Participants will have clinic visits every 2 weeks while taking their pills. They will have a physical exam, with blood and urine tests, during each visit. If participants have fluid samples collected from their airways during their standard treatment, some extra fluid may be collected for this study. Participants will have a follow-up visit 4 weeks after they stop taking their pills.

Начало: 29.04.2026 Край: 14.07.2028 Възраст: 18–99 г.

United States National Heart, Lung, and Blood Institute (NHLBI) NCT06948097

Предстои набиране Ранна Фаза 1

Causal Mechanisms of Odor-Guided Behavior in Humans

Normal Physiology

Background: Little is known about how different regions of the brain responsible for the human sense of smell guide behaviors. In this study, researchers use a technique called transcranial ultrasound stimulation (TUS) to learn how odors affect the brain and behavior. Objective: To learn more about how the human sense of smell works. Eligibility: Healthy people aged 18 to 45 years who are right-handed. Design: Participants can volunteer for up to 2 different experiments. Each experiment requires 5 visits, each about 1 week apart. Food, alcohol, and caffeine may be limited before visits. At the start of each visit, participants will answer questions about their health and how well they slept. Their sense of smell will be assessed. Some visits may include tasks on a computer: While doing these tasks, participants may be asked to smell different odors, look at pictures, and listen to sounds. They will wear devices to track breathing, blood pressure, pulse, and other body responses to the tasks. Some visits may include TUS: TUS uses ultrasound waves to briefly change brain activity. A gel will be applied to the scalp and hair, and a device will be placed against the participant s head. Participants may feel a tapping, pulling, and/or warm sensation on the skin underneath the device. They may also feel a twitch in their face, neck, arm, or leg muscles. Participants will do tasks before and after TUS. Some visits will include functional magnetic resonance imaging (fMRI) scans. fMRI uses magnet and radio waves to capture images of the activity inside the brain. Participants will lie on a table that slides into a tube. They will perform tasks inside the scanner.

Начало: 29.04.2026 Край: 14.07.2035 Възраст: 18–45 г.

United States National Institute on Drug Abuse (NIDA) NCT07099092

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GRAfT 2.0. A Multimodal Prospective Approach to Define the Mechanisms and Clinical Features of Acute and Chronic Rejection in Lung Transplantation

Lung Transplant End Stage Lung Disease Rejection

Background: Lung transplants can save lives, but the procedure has risks. Some people develop donor-specific antibodies (DSA) after the procedure-that is, their bodies create proteins that treat the new lungs as foreign and mount an immune response against them. This is called rejection. But not everyone who has a transplant develops DSA, and not everyone who has DSA develops rejection. Researchers want to understand why. Objective: To collect data to try to find out why some people develop rejection after lung transplants while others do not. Eligibility: People aged 18 to 75 years who have undergone or may undergo a lung transplant. Design: Participants will have clinic visits every 3 to 6 months for up to 4 years. Some visits might require an overnight stay. Each visit will include multiple tests and procedures: Physical exam with blood and urine tests. Some blood will be used for genetic testing. Imaging scans. Participants will have 2 types of scan to get images of their lungs. For one, they will have a contrast agent given through a tube inserted into a vein. Six-minute walk test. Participants will walk back and forth in a hallway at their own pace. Researchers will check on how their body responds. Lung function test. Participants will breathe into a tube connected to a machine. Two other tests are optional: Bronchoscopy with washings (lavage). A long tube with a light will be threaded down through the participant s nose or mouth and into their lungs. Endomicroscopy. During the bronchoscopy a tiny camera may be used to take pictures inside the lungs. ...

Начало: 29.04.2026 Край: 27.03.2032 Възраст: 18–75 г.

United States National Heart, Lung, and Blood Institute (NHLBI) NCT07516379

Предстои набиране Фаза 1/2

Novel Indenoisoquinolone CMYC/TOPOISOMERASE 1 Inhibitor (LMP744) in Recurrent Glioblastoma

Recurrent Glioblastoma Glioblastoma IDH (Isocitrate Dehydrogenase) Wildtype Relapsed Cancer Recurrent Tumor +11

Background: Glioblastoma is a common brain cancer in adults. Treatment includes surgery, radiation, and chemotherapy. But this cancer can return after treatment and is often fatal. Researchers want to know if a study drug (LMP744) can kill glioblastoma tumor cells. Objective: To test LMP744 in people with glioblastoma. Eligibility: People aged 18 years or older with glioblastoma that returned after treatment. Design: Participants will be screened. They will have a surgery to remove a small sample of tumor tissue (biopsy) from the brain. This will be done under protocol 03-N-0164. They will stay in the clinic for 1 night. They will also have imaging scans and tests of their heart function. Participants will have a central line installed: A flexible tube will be inserted into a vein in the chest. It will be attached to a port under the skin. This port will be used to draw blood and give medicines without having to insert new needles into a vein. LMP744 will be given through the central line for 5 days in a row. Participants will remain in the clinic for this time. Participants will then have a second surgery to remove as much of their tumor as possible. They will remain in the clinic until they recover from the surgery. Then they will recover at home after surgery. Participants will return to the clinic to receive the study drug for 5 days in a row through the central line, once a month for up to 12 months. Blood tests, heart function tests, and periodic imaging scans will be repeated during these visits. Participants will continue to have telehealth visits every 3 months after they stop taking the drug.

Начало: 29.04.2026 Край: 31.12.2032 Възраст: 18–99 г.

United States National Institute of Neurological Disorders and Stroke NCT07416188

Предстои набиране

Prevalence and Development of Liver Dysfunction in Hematopoietic Stem Cell Transplant

Hematopoietic Stem Cell Transplant

Background: Hematopoietic stem cell transplant (HSCT) is a common treatment for many cancers and other illnesses. But many people who have HSCT go on to develop liver dysfunction. Researchers want to know more about how and why this happens. In this natural history study, they will try to learn what factors lead to liver dysfunction; how underlying liver disease may affect the results of HSCT; and how HSCT may contribute to liver dysfunction. Objective: To understand the links between HSCT and liver dysfunction. Eligibility: Adults aged 18 years or older and children 3 to 17 years who are being evaluated for HSCT. Design: This study involves 11 visits in 4 years. Most visits will be in the first year. Before and after their HSCT, participants will undergo these tests: Physical exam, including blood tests and a test of heart function. Participants will provide stool samples. Liver biopsies. Samples of liver tissue will be removed. This may be done either by inserting a needle through the right side of the chest, or with a thin tube threaded to the liver from a vein in the neck. Adult participants will undergo this procedure 2 times: once before the HSCT and once about a year later. Imaging scans. Participants will lie on a bed that moves into either a cylinder or a donut-shaped machine. Ultrasound. Participants will lie still. A probe that uses sound waves will be slid over their skin to get pictures of the liver. Fibroscan exam. This is like an ultrasound that uses a special probe to measure the toughness of the liver. ...

Начало: 29.04.2026 Край: 30.06.2031 Възраст: от 3 г.

United States National Institute of Diabetes and Digestive and Kidney NCT05722210

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Clinical Genetics Branch Eligibility Screening Survey

Melanoma Li-Fraumeni Syndrome Pulmonary Blastoma Chordoma +6

Background: Clinical Genetics Branch (CGB) researchers study individuals and populations at high genetic risk of cancer in order to improve our understanding of cancer and to improve cancer care. There are currently 6 open clinical genetics studies at the CGB eligible for this screening process. * 02C0052: Etiologic Investigation of Cancer Susceptibility in Inherited Bone Marrow Failure Syndromes: A Natural History Study (Cancer in Bone Marrow Failure) * 11C0255: Clinical, Epidemiologic, and Genetic Studies of Li-Fraumeni Syndrome (Li Fraumeni Syndrome Study) * 11C0034: DICER1-Related Pleuropulmonary Blastoma Cancer Predisposition Syndrome: A Natural History Study (Pleuropulmonary Blastoma) * 02C0211: Clinical, Laboratory, and Epidemiologic Characterization of Individuals and Families at High Risk of Melanoma (Melanoma-Prone Families) * 10CN188: Genetic Clues to Chordoma Etiology: A Protocol to Identify Sporadic Chordoma Patients for Studies of Cancer-susceptibility Genes (Sporadic Chordoma Study) The following studies have their own study-specific screeners. If you are interested in these studies, please click the links below to fill out the relevant study screener: * 001109: Defining the Natural History of Squamous Cell Carcinoma in Fanconi anemia (SCC Screening in FA): https://service.cancer.gov/fanconi * 20C0107: Clinical, Genetic, and Epidemiologic Study of Children and Adults with RASopathies (RASopathies Study): https://service.cancer.gov/myras Objective: To find people to participate in active CGB cancer research studies. Eligibility: People of any age who meet the eligibility criteria for one of the open CGB cancer research studies. You can learn more about the CGB cancer research studies by clicking on the links to the study-specific websites above. This typically involves a personal or family history of certain cancers that are being studied by researchers at CGB. Design: Participants will fill out a screening questionnaire to determine if they are eligible to participate in one or more CGB clinical genetics studies. The survey asks about personal health history, including cancer; family history; and genetic testing results and takes 15 to 20 minutes. Each study has its own eligibility criteria. Survey respondents will select which study (or studies) that are interested in participating in, and the relevant study team(s) will review the screener to determine eligibility to participate in the study. Participants who are determined to be eligible for a study based on their screener will be contacted by the respective study team to learn more about the study and to consent to enroll in the study if they choose to do so. Participants who consent to enroll in a study may be asked to provide medical records; samples such as blood, saliva, or other tissues; and to participate in activities such as phone interviews or surveys. They may be invited for evaluations at the clinical center. Every study activity is voluntary. None of the studies provide treatments. Participants may be contacted to consider enrolling in future studies.

Начало: 29.04.2026 Край: 01.01.2036 Възраст: 1–99 г.

United States National Cancer Institute (NCI) NCT07005297

Предстои набиране

A Natural History of Genetic and Environmental Predictors of Pubertal Timing Among Youth With Obesity

Obesity

Background: Obesity affects 1 in 5 children in the United States. Childhood obesity often persists into adolescence and adulthood. It can also raise the risk of sleep apnea, fatty liver disease, and fluid buildup in the brain and lead to early-onset puberty. This natural history study will explore how factors such as genes, hormones, diet, and chemical exposures affect puberty in children with obesity. Objective: To learn which factors predict the early start of puberty in children with obesity vs those of normal weight. Eligibility: Children aged 5 to 7 years with obesity or of normal weight. Design: Participants will have clinic visits every 6 months until they reach age 12. Each clinic visit will include these tests and procedures: A physical exam. Collection of blood, urine, and saliva samples. Some samples will be used for genetic tests. Questions about medical history and medications and supplements. A questionnaire about their physical activity over the previous week. A silicone wrist band. Participants will wear a soft wristband for a week prior to each visit. It will tell researchers what chemicals the children were exposed to during that time. Breast ultrasound, for girls. A gel will be applied, and a wand will be pressed against the skin. The wand uses sound waves to see the tissue inside the breast. DXA whole body scan. Once a year, participants will have a DXA (dual energy X-ray absorptiometry) scan. This scan measures the amount of bone, muscle, and fat in the body. Optional food diary. Parents may record everything the participant eats for two 24-hour periods ...

Начало: 29.04.2026 Край: 23.12.2036 Възраст: 5–12 г.

United States National Institute of Environmental Health Sciences (NI NCT07437976

Предстои набиране Фаза 1/2

177Lu-DOTA-EB-TATE in Adult Patients With Metastatic, Radioactive Iodine Non-Responsive Oncocytic (Hurthle-Cell) Thyroid Cancer

Thyroid Cancer

Background: Oncocytic (Hurthle cell) thyroid cancer (HTC) is a rare disease with few treatment options. Researchers are developing a radioactive drug that targets a protein that appears in high numbers on HTC cancer cells. Objective: To test a radioactive drug (177LuDOTA-EB-TATE) in people with HTC. Eligibility: People aged 18 years and older with HTC. The HTC must have failed to respond to conventional radioactive treatment; it must also have spread to other parts of the body. Design: Participants will be screened. They will have a physical exam with blood tests. They will have imaging scans and a test of their heart function. 177LuDOTA-EB-TATE is infused into a vein. Participants will receive 4 infusions spaced 8 to 12 weeks apart. They will stay in the hospital for 4 to 10 days after each infusion. During and after each infusion, participants will remain in a lead-lined room until their radiation levels go down; this usually takes about 24 hours. Participants will have 4 to 6 follow-up visits in the weeks after each infusion. Procedures will vary at each visit, but may include more imaging scans; blood and urine tests; and tests of heart function. Participants will have 2 single-photon emission computerized tomography (SPECT) scans. SPECT scans show where the study drug is sticking to tumors or maybe other parts of their body. They will lie on a table while a machine rotates around them. Participants will fill in questionnaires about how their thyroid condition affects their life. Participants will have follow-ups visits for 5 years after their last study treatment.

Начало: 29.04.2026 Край: 01.08.2032 Възраст: 18–100 г.

United States National Institute of Diabetes and Digestive and Kidney NCT06991738

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Hepatic Lipid Metabolism-Alcohol Use Disorder

Alcohol Use Disorder

Patients with hepatic steatosis due to alcohol will be offered liver biopsies when they enter a detoxification program. The first biopsy will occur in the first week of admission and the second in the fourth week when the steatosis has resolved. The hepatic transcriptome will be compared,

Начало: 29.04.2026 Край: 30.11.2029 Възраст: 18–100 г.

United States National Institute of Diabetes and Digestive and Kidney NCT07191561

Предстои набиране Фаза 1

A Study in Pediatric Participants Aged ≥2 to

Urinary Tract Infections

The study will be conducted to evaluate how a single oral dose of Gepotidacin is processed in the body over time along with safety monitoring in hospitalized pediatric participants who are receiving a standard of care treatment with antibacterials for a confirmed or suspected infection or for its prevention.

Начало: 29.04.2026 Край: 23.08.2027 Възраст: 2–11 г.

GlaxoSmithKline NCT07371429

Предстои набиране Фаза 1

Autologous B7-H3 Chimeric Antigen Receptor T Cells in Previously Treated Extensive-Stage Small Cell Lung Cancer With Recurrent or Refractory Disease

Extensive-Stage Small Cell Lung Cancer Extrapulmonary Neuroendocrine Carcinoma Recurrent or Refractory Solid Tumors

Background: Small cell lung cancer (SCLC) is the deadliest form of lung cancer. Extrapulmonary neuroendocrine cancer (EPNEC) is a similar type of cancer that develops anywhere other than the lungs. EPNEC is also deadly. B7-H3 is a protein often found in SCLC and EPNEC tumor cells. Researchers can modify a person s own T cells, or immune cells, to target B7-H3. When these modified T cells are returned to the body-a treatment called B7-H3 chimeric antigen receptor (CAR) T cell therapy-they may help kill cancer cells. Objective: To test B7-H3 CAR T cell therapy in people with SCLC or EPNEC. Eligibility: People aged 18 years and older with SCLC or EPNEC that either did not respond or returned after treatment. Design: Participants will be screened. They will have blood tests and tests of their heart function. They will have imaging scans. Participants will undergo apheresis: Blood will be taken from the body through a needle. The blood will pass through a machine that separates out the T cells. The remaining blood will be returned to the body through a different needle. The collected T cells will be altered to make them attack cells with B7-H3. Participants will be in the hospital for at least 15 days. They will receive chemotherapy drugs to prepare their body for the treatment. These drugs will be given through a tube attached to a needle inserted into a vein. The modified T cells will be infused through a vein. Participants will remain in the hospital until they are well enough to go home. Follow-up visits will continue for 15 years....

Начало: 29.04.2026 Край: 30.01.2031 Възраст: 18–120 г.

United States National Cancer Institute (NCI) NCT07509034

Предстои набиране Фаза 1

Phase I Trial of High-Density Theta Burst Stimulation (hdTBS)

Healthy Volunteers

Background: Transcranial magnetic stimulation (TMS) uses magnetic pulses to affect brain activity. A type of TMS called theta burst stimulation (TBS) is approved to treat people with major depression. Researchers have developed a new form of TBS called high-density TBS (hdTBS). They hope hdTBS will work better than TBS. But first they need to test the new treatment in healthy adults. Objective: To test hdTBS in healthy adults. Also, to compare the aftereffects of hdTBS and TBS. Eligibility: Healthy adults aged 22 to 60 years. Design: Participants will have 4 clinic visits over about 3 to 4 weeks. They must abstain from drugs and alcohol and limit caffeine before visits. At their first visit, participants will be oriented to TBS. They will wear a cap and earplugs. A device with round coils will be placed near their head. When a brief electric current passes through the coil, it generates a magnetic pulse that stimulates the brain. Participants may feel a pulling sensation on the skin under the coil. Their fingers may move involuntarily. At their next 3 visits, participants will receive either TBS or sham TBS. A sham TBS uses a low magnetic field to minimize the effects of the treatment. Participants will have up to 9 electrodes placed on 1 arm. These electrodes will measure the electrical activity in their muscles. Each TBS session will be videotaped. At every visit, participants will answer questions about their health, including substance use. They will perform 2 tasks to test their thinking skills. They will perform a test on a computer to test their reaction time....

Начало: 29.04.2026 Край: 13.01.2028 Възраст: 22–60 г.

United States National Institute on Drug Abuse (NIDA) NCT06868914

Предстои набиране

NHLBI-Emory Advanced Cardiac CT Reconstruction

Structural Heart Disease

Background: Doctors use computed tomography (CT) to get detailed pictures of the heart. CT uses x-rays to gather raw data. Computers assemble this data to make the images doctors look at. A new computer technique can make higher resolution images from the same CT scans. In this natural history study, researchers will take normal CT images of the heart. They will compare those images to super high-resolution (super high-res) images made with a super-computer. Objective: To improve the quality of heart CT scans by using new methods to create the images. Eligibility: People aged 18 years or older who need a CT scan for heart disease. Design: Participants will have a normal CT scan. A substance will be injected through a tube in their arm. They will lie on a table in a large, donut-shaped machine. An X-ray tube will move around their body, taking many pictures. Researchers will use the normal CT scans to create super high-res images. They may do this at the NIH. They may also send the images to the company that made the CT scanner. Participants personal information will be removed before images are sent to the company. The personal information will be replaced by a code. The super high-res images will be returned to the NIH. Some information will be collected from participants medical records. Researchers will compare the normal scans to the super high-res images. Participants' own doctors will also have a chance to see the super high-res images. Participants' CT pictures will be stored and used for future NIH research.

Начало: 29.04.2026 Край: 30.01.2031 Възраст: 18–100 г.

United States National Heart, Lung, and Blood Institute (NHLBI) NCT05372627

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