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Намерени 4,781 изпитвания Стр. 103 от 240
Набира участници
TMS-based Assessment of Mental Training Effects on Motor Learning in Healthy Participants
Motor Learning

The general purpose of this research project is to analyze the specific role of motor imagery on motor learning, assessed through corticospinal excitability measurements and behavioral data collection. This project is based on four sequences. For Sequence 1, the main objective is to examine the effect of mental training on movement speed and accuracy in a manual motor sequence task, as well as the influence of sensory feedback in immediate post-test (i.e., execution of a similar, but not identical, manual motor sequence, other manual tasks) on performance in delayed post-test. The secondary objective will be to examine corticospinal changes (i.e., amplitude of motor evoked potentials) induced by mental training, by measuring the amplitude of motor evoked potentials before and after mental training. For Sequence 2, the main objective is to examine the impact of a motor disturbance induced by a robotic arm at different intervals during the motor imagery process. The secondary objective will be to examine the corticospinal changes (i.e. amplitude of evoked motor potentials) induced by mental training as a function of the applied perturbations, before and after perturbation. For Sequence 3, the main objective will be to examine the influence of neuroplasticity on the quality of mental training. More specifically, the investigators will study the links between brain plasticity and motor learning through mental training. The secondary objective will be to examine the corticospinal changes (i.e. amplitude of evoked motor potentials) induced by mental training at different levels of the neuromuscular system (cortical, cervicomedullar, peripheral) after a training period. For Sequence 4, the main objective will be to examine the effect of short-term arm-immobilization of on the retention of motor learning induced by mental training. The secondary objective will be to examine the corticospinal changes (i.e., amplitude of motor evoked potentials) induced by of short-term arm-immobilization, or by transcranial direct current stimulation (tDCS), on motor learning. The results of this fundamental research project will allow a better understanding of neurophysiological and behavioral mechanisms that underlie motor learning through motor imagery. The results will allow to efficiently consider inter-individual specificities and will thus open up to clinical research perspectives, towards the establishment of adapted motor rehabilitation protocols.

Начало: 08.04.2024 Край: 01.04.2029 Възраст: 18–60 г.
France Institut National de la Santé Et de la Recherche Médica NCT04784832
Набира участници Фаза 4
Empagliflozin Treatment in Kidney Transplant Recipients
Kidney Transplant Chronic Kidney Disease

Kidney transplantation improves the health and quality of life for those Veterans with end stage kidney disease (ESKD). While early patient and graft survival are excellent, long-term outcomes continue to be challenging. Patient death with existing kidney graft function occurs in about half of all recipients over time. This is primarily due to the development of cardiovascular disease in a patient population with multiple preexisting cardiac disease risk factors. There has been little progress in improving outcomes in this area for over two decades. Recent studies in chronic kidney disease (CKD) patients using SGLT2 inhibitors (SGLT2i), regardless of the presence of type 2 diabetes mellitus (T2DM), results in both kidney protective and cardiac protective impacts and improved patient outcomes. However, kidney transplant recipients (KTRs) were excluded from these clinical trials due to concerns that these agents promote infection, diminish graft function, and may alter immunosuppressive drug levels that are the mainstay of patient's transplant therapy. There are limited published data of SGLT2i treatment of selected KTRs.

Начало: 05.04.2024 Край: 31.03.2030 Възраст: от 19 г.
United States VA Office of Research and Development NCT06013865
Набира участници
Transpulmonary Pressure - Guided Mechanical Ventilation in Morbidly Obese ARDS Patients: a Feasibility Study.
ARDS, Human Obesity, Morbid

The goal of this clinical trial is to test a personalized intervention aiming to optimize the mechanical ventilator settings in morbidly obese patients suffering from moderate to severe Acute Respiratory Distress Syndrome (ARDS). The intervention consists of personalized measurements and calculations of the different pressures inside the thorax. The main question to answer is: • Will the evaluated esophageal pressure-guided strategy lead to different mechanical ventilator settings than suggested by a strategy largely used in ARDS patients in France? A specific nasogastric probe permitting to measure esophageal pressure will monitor participants. Esophageal pressure will act as an indicator of the pleural pressure. Other respiratory signals displayed by the mechanical ventilators will also be acquired. Further, ventilator settings will be adjusted to the evaluated esophageal pressure-guided strategy, with possible benefit of this personalized approach.

Начало: 04.04.2024 Край: 04.07.2027 Възраст: от 18 г.
France Assistance Publique - Hôpitaux de Paris NCT06119516
Набира участници
Trial of a Harm Reduction Strategy for People With HIV Who Smoke Cigarettes
Hiv Tobacco Use

Cigarette smoking is now the leading killer of people with HIV (PWH) in the US, and most cessation strategies tried to date have failed to increase long-term quit rates. An "all or none" approach to smoking cessation in PWH offers little benefit to the large majority of PWH who are unable or unwilling to quit. In this proposal we argue that a harm reduction approach (i.e., cut down, get screened for lung cancer, control your blood pressure and cholesterol) has the potential to yield significant benefits in terms of the private and public health of PWH in the US.

Начало: 04.04.2024 Край: 01.03.2027 Възраст: 40–79 г.
United States Montefiore Medical Center NCT05642715
Набира участници
iTONE Trial (exercIse Training in pulmONary hypertEnsion) Exercise Program for Pediatric PH
Pulmonary Hypertension

Children with pulmonary hypertension (PH) engage in less physical activity than their peers. This is a concern since adult data support exercise as a non-pharmacologic treatment for PH. Despite adult data, therapeutic exercise has not been widely adopted in pediatric PH. Investigators have previously demonstrated that children with PH have less skeletal muscle mass in association with worse exercise performance. Interventions to increase physical activity and skeletal muscle mass may improve exercise performance and quality of life in children with PH. This study will use wearable activity monitoring devices to promote physical activity in a 16-week pilot intervention in children and teenager with PH.

Начало: 03.04.2024 Край: 31.12.2026 Възраст: 8–18 г.
United States Children's Hospital of Philadelphia NCT05442671
Набира участници
Biomarkers Research in Anxiety for Validation and Efficacy
Autism Autism Spectrum Disorder

A within-subjects design will be used for this preliminary investigation of four biomarkers across two contexts of use: prediction of treatment response (i.e., stratification) and quantification of response (i.e., change).

Начало: 02.04.2024 Край: 01.08.2026 Възраст: 3–6 г.
United States Boston Children's Hospital NCT06221176
Набира участници
Cross Modal Correlation of EEG and MRI Functional Connectivity: An Investigative Study
MRI, Functional MRI

Cross modal correlation of EEG and MRI functional connectivity: An Investigative Study. Correlating EEG Analysis with Brain Network Connectivity in Functional MRI. The primary aim of this study is to correlate correlation of MRI and EEG.

Начало: 02.04.2024 Край: 31.01.2030 Възраст: от 18 г.
Israel Assaf-Harofeh Medical Center NCT07539506
Набира участници
Does Position Influence the Diagnosis of Detrusor Overactivity in a Neurological Population
Urodynamic Exam Neurologic Disorder

ICS (International Continence Society) recommendations published in 2017 recommend performing urodynamic examinations in the sitting or standing position. These recommendations are based on a review of the literature published in 2008, which has several limitations: heterogeneous populations, old and non-harmonized techniques, and very few neurological patients. It seems appropriate to focus on neurological patients and to examine the influence of position on the detection of detrusor overactivity in these patients. The point here is to reexamine the ICS recommendations, which are not designed for neurological patients. Indeed, many patients suffering from Multiple Sclerosis (MS) or Parkinson's disease are unable to sit or stand for the duration of the urodynamic examination. The investigators would like to assess whether exploring sphincter disorders in the supine position is still interpretable. This would enable us to define ICS good practice recommendations for a neurological population.

Начало: 02.04.2024 Край: 02.04.2027 Възраст: от 18 г.
France Assistance Publique - Hôpitaux de Paris NCT05949567
Набира участници
Comparative Evaluation of Preoperative Preparation Methods in Patients With Large Incisional Hernias
Incisional Hernia Repair Ventral Hernia Repair

Patients with large, complex, or giant incisional hernias often require advanced preoperative optimization to facilitate safe abdominal wall reconstruction and reduce postoperative complications. Several strategies are currently used in clinical practice, including botulinum toxin A injection, progressive preoperative pneumoperitoneum, and their combination. However, the optimal differentiated approach based on hernia characteristics and abdominal wall tissue deficiency remains unclear. This study aims to compare the effectiveness and safety of different preoperative preparation strategies in patients with large postoperative ventral hernias and loss of abdominal wall domain. Outcomes of patients receiving botulinum toxin A, progressive preoperative pneumoperitoneum, combined preparation, or no specific preparation will be analyzed. The study will evaluate operative feasibility, ability to achieve fascial closure, postoperative complications, recurrence, and overall treatment outcomes.

Начало: 01.04.2024 Край: 01.05.2028 Възраст: от 18 г.
Russia State Budget Public Health Institution Scientific Resea NCT07549113
Набира участници Фаза 4
Dupilumab De-escalation in Pediatric Atopic Dermatitis
Atopic Dermatitis

This is a pilot investigator-blinded, randomized clinical trial to assess the feasibility of dupilumab treatment discontinuation or dose-reduction in children aged 1-17 years who have achieved sustained atopic dermatitis (AD) control on dupilumab.

Начало: 01.04.2024 Край: 30.04.2027 Възраст: 1–17 г.
United States Johns Hopkins University NCT06116526
Набира участници Фаза 1
Microelectrode Recordings From the Vagus Nerve in Awake Humans
Epilepsy

This Anchillary project uses a refined technique of ultrasound-guided microneurography of the human cervical vagus nerve, an approach developed by Professor Vaughan Macefield and used safely to-date in 44 prior study participants. The overall goal of this project is to build upon prior data obtained using this approach by undertaking a detailed neurophysiological investigation of the human vagus nerve and to identify the nerve fibers activated during vagal nerve stimulation (VNS) in participants with implanted VNS devices in response to different stimulation parameters. In addition to providing data in unprecedented detail into the physiology of the human vagus nerve, this project will investigate different stimulus intensities, durations and frequencies that differentially excite myelinated and unmyelinated nerve fibers. These results will inform the CSP and guide future development of novel neural interfaces for VNS for various clinical applications.

Начало: 01.04.2024 Край: 31.12.2026 Възраст: 18–40 г.
United States University of Minnesota NCT06016686
Набира участници
Artificial Intelligence Based Timing, Infarct Size and Outcomes in Acute Coronary Occlusion Myocardial Infarction
Coronary Arterial Disease (CAD) Acute Coronary Syndrome (ACS) Undergoing Percutaneous Coronary Intervention (PCI)

The present study is practice-driven and merely observational and prospective. In clinical routine, patients who suffer from suspected ACS and do not show ST elevation in the ECG, different timing proposals in the guidelines and logistically driven differences lead to considerably variable timings in invasive coronary anatomy assessments. This handling may lead to larger infarct sizes when OMI is overseen. Therefore, the present study aims to observe a) whether an AI model is capable of correctly identify OMI in eligible patients and b) if in these patients troponin peak levels vary depending on the elapsed time between OMI diagnosis and coronary intervention. As the model has not been established yet clinically and in the guidelines, it is safe to assume the usual pathway from first medical contact to specialist's attention is undertaken. When a patient presents in an emergency department or places an emergency call, the physicians assess the situation as usal and as stated in the current guidelines1. If no STEMI is confirmed, the NSTE-ACS protocol is started. The patients who are ruled out for ACS are excluded from the final analysis (screening). In this case, the AI model is tested on their ECG in order to assess whether there are false positives. The patients which are in the ACS "rule-in" trail and undergo final coronary angiography will naturally be divided in patients which were classified as OMI and as non-OMI by the AI model. Furthermore, they will present a different "Time from OMI diagnosis to PCI) and variable troponin peak levels. By leveraging this natural variability, a practical distinction and multiple analyses can be done: 1. The feasibility of AI-powered ECG interpretation in the care of patients with suspected ACS and without clear ST-elevation infarction 2. The accuracy of AI-powered ECG interpretation in detecting OMI compared to the classical STEMI criteria 3. How infarct size correlates with different ECG readings by AI and (hypothesis generating) if changing the clinical practice could lead to a benefit in patients with suspected OMI.

Начало: 01.04.2024 Край: 31.07.2026 Възраст: от 18 г.
Italy Azienda Ospedaliera di Bolzano NCT06910436
Набира участници Фаза 2
Integration of Cognitive Processing Therapy and Relapse Prevention for Alcohol Use Disorder and PTSD
Posttraumatic Stress Disorder Alcohol Use Disorder

The goal of this clinical trial is to test the efficacy of a novel integrative cognitive-behavioral intervention in patients with posttraumatic stress disorder (PTSD) and alcohol use disorder (AUD). Specific Aim 1: Examine the efficacy of CPT-RP, as compared to RP alone, in reducing alcohol frequency (percent days drinking) and quantity (drinks per drinking day) as measured by the Timeline Follow-Back (TLFB). Specific Aim 2: Examine the efficacy of CPT-RP, as compared to RP alone, in reducing PTSD symptoms as measured by the Clinician Administered PTSD Scale (CAPS-5). Specific Aim 3: Use ecological momentary assessment (EMA) to evaluate intervention effects on daily alcohol-related cognitions and behaviors through real-time associations with PTSD symptomatology and distress tolerance. Researchers will compare integrative CPT+RP with RP-alone to see if CPT+RP is more efficacious in reducing alcohol use and PTSD symptom severity.

Начало: 01.04.2024 Край: 31.07.2028 Възраст: от 18 г.
United States Texas A&M University NCT05959434
Набира участници Фаза 2
A Study With Tovorafenib (DAY101) as a Treatment Option for Progressive, Relapsed, or Refractory Langerhans Cell Histiocytosis
Recurrent Langerhans Cell Histiocytosis Refractory Langerhans Cell Histiocytosis

This phase II trial tests the safety, side effects, best dose and activity of tovorafenib (DAY101) in treating patients with Langerhans cell histiocytosis that is growing, spreading, or getting worse (progressive), has come back (relapsed) after previous treatment, or does not respond to therapy (refractory). Langerhans cell histiocytosis is a type of disease that occurs when the body makes too many immature Langerhans cells (a type of white blood cell). When these cells build up, they can form tumors in certain tissues and organs including bones, skin, lungs and pituitary gland and can damage them. This tumor is more common in children and young adults. DAY101 may stop the growth of cancer cells by blocking some of the enzymes needed for cell growth. Using DAY101 may be effective in treating patients with relapsed or refractory Langerhans cell histiocytosis.

Начало: 28.03.2024 Край: 30.09.2028 Възраст: 180–22 г. Лечение
Australia, Canada, United States National Cancer Institute (NCI) NCT05828069
Набира участници Фаза 1/2
NRSTS2021, A Risk Adapted Study Evaluating Maintenance Pazopanib, Limited Margin, Dose-Escalated Radiation Therapy and Selinexor in Non-Rhabdomyosarcoma Soft Tissue Sarcoma (NRSTS)
Adipocytic Neoplasm Liposarcoma Atypical Fibroxanthoma Angiomatoid Fibrous Histiocytoma +5

The study participant has been diagnosed with non-rhabdomyosarcoma (NRSTS). Primary Objectives Intermediate-Risk * To estimate the 3-year event-free survival for intermediate-risk patients treated with ifosfamide, doxorubicin, pazopanib, surgery, and maintenance pazopanib, with or without RT. * To characterize the pharmacokinetics of pazopanib and doxorubicin in combination with ifosfamide in intermediate-risk participants, to assess potential covariates to explain the inter- and intra-individual pharmacokinetic variability, and to explore associations between clinical effects and pazopanib and doxorubicin pharmacokinetics. High-Risk * To estimate the maximum tolerated dose (MTD) and/or the recommended phase 2 dosage (RP2D) of selinexor in combination with ifosfamide, doxorubicin, pazopanib, and maintenance pazopanib in high-risk participants. * To characterize the pharmacokinetics of selinexor, pazopanib and doxorubicin in combination with ifosfamide in high-risk participants, to assess potential covariates to explain the inter- and intra-individual pharmacokinetic variability, and to explore associations between clinical effects and selinexor, pazopanib and doxorubicin pharmacokinetics. Secondary Objectives * To estimate the cumulative incidence of primary site local failure and distant metastasis-free, disease-free, event-free, and overall survival in participants treated on the risk-based treatment strategy defined in this protocol. * To define and describe the CTCAE Grade 3 or higher toxicities, and specific grade 1-2 toxicities, in low- and intermediate-risk participants. * To study the association between radiation dosimetry in participants receiving radiation therapy and the incidence and type of dosimetric local failure, normal adjacent tissue exposure, and musculoskeletal toxicity. * To evaluate the objective response rate (complete and partial response) after 3 cycles for high-risk patients receiving the combination of selinexor with ifosfamide, doxorubicin, pazopanib, and maintenance pazopanib. * To assess the relationship between the pharmacogenetic variation in drug-metabolizing enzymes or drug transporters and the pharmacokinetics of selinexor, pazopanib, and doxorubicin in intermediate- or high-risk patients. Exploratory Objectives * To explore the correlation between radiographic response, pathologic response, survival, and toxicity, and tumor molecular characteristics, as assessed through next-generation sequencing (NGS), including whole genome sequencing (WGS), whole exome sequencing (WES), and RNA sequencing (RNAseq). * To explore the feasibility of determining DNA mutational signatures and homologous repair deficiency status in primary tumor samples and to explore the correlation between these molecular findings and the radiographic response, survival, and toxicity of patients treated on this protocol. * To explore the feasibility of obtaining DNA methylation profiling on pretreatment, post-induction chemotherapy, and recurrent (if possible) tumor material, and to assess the correlation with this and pathologic diagnosis, tumor control, and survival outcomes where feasible. * To explore the feasibility of obtaining high resolution single-cell RNA sequencing of pretreatment, post-induction chemotherapy, and recurrent (if possible) tumor material, and to characterize the longitudinal changes in tumor heterogeneity and tumor microenvironment. * To explore the feasibility of identifying characteristic alterations in non-rhabdomyosarcoma soft tissue sarcoma in cell-free DNA (cfDNA) in blood as a non-invasive method of detecting and tracking changes during therapy, and to assess the correlation of cfDNA and mutations in tumor samples. * To describe cardiovascular and musculoskeletal health, cardiopulmonary fitness among children and young adults with NRSTS treated on this protocol. * To investigate the potential prognostic value of serum cardiac biomarkers (high-sensitivity cardiac troponin I (hs-cTnI), N-terminal pro B-type natriuretic peptide (NT-Pro-BNP), serial electrocardiograms (EKGs), and serial echocardiograms in patients receiving ifosfamide, doxorubicin, and pazopanib, with or without selinexor. * To define the rates of near-complete pathologic response (\>90% necrosis) and change in FDG PET maximum standard uptake value (SUVmax) from baseline to week 13 in intermediate risk patients with initially unresectable tumors treated with induction pazopanib, ifosfamide, and doxorubicin, and to correlate this change with tumor control and survival outcomes. * To determine the number of high-risk patients initially judged unresectable at diagnosis that are able to undergo primary tumor resection after treatment with ifosfamide, doxorubicin, selinexor, and pazopanib. * To identify the frequency with which assessment of volumes of interest (VOIs) of target lesions would alter RECIST response assessment compared with standard linear measurements.

Начало: 27.03.2024 Край: 01.06.2037 Възраст: до 30 г.
United States St. Jude Children's Research Hospital NCT06239272
Набира участници
Ultra-Low Field (ULF) Point-of-Care (POC) MRI System for Brain Morphology and Pathology
Nervous System Diseases (C10 Unique ID D009422)

Background: Magnetic resonance imaging (MRI) is a tool for getting pictures of the tissues and organs inside the body. MRI can help diagnose many injuries and diseases. But not all patients are equally likely to receive MRIs. Factors such as race or ethnicity, distance to imaging centers, mobility, and a lower income can limit some people s access to MRIs. A new ultra-low field (ULF) type of MRI, which can be used on a vehicle, may help take imaging scans to more people. But researchers need to know that UFL-MRI works just as well as standard MRIs. Objective: To learn whether UFL-MRI is as good as standard MRI at detecting neurological disorders. Eligibility: People aged 3 years or older who have or show symptoms of neurological disease (such as stroke, cancer, or epilepsy). Healthy adults are also needed. Design: Participants will have 1 or 2 study visits. Adult participants will have a physical exam. They will receive two MRI exams: * Standard MRI. They will lie still on a narrow bed that will move into a large tube. They will wear earplugs to muffle the sounds. * ULF-MRI. They will lie on a stretcher, and only their head will be inside a smaller tube. The noises will be quieter. They will wear earplugs to muffle the sounds. Some adults may receive a contrast agent given through a small tube attached to a needle in the arm. The contrast agent helps the researchers see differences in the body more clearly. This may be done during 1 or both MRIs. Children will have only 1 ULF-MRI. Some participants may be invited to have additional visits for up to 6 months.

Начало: 26.03.2024 Край: 31.12.2027 Възраст: 3–99 г.
United States National Institute of Neurological Disorders and Stroke NCT06203626
Набира участници
The REBALANCE Study - a Prospective, Multicenter, Randomized, Pivotal Study of the May Health System
Polycystic Ovary Syndrome Infertility, Female

A Prospective, Multicenter, Randomized, Pivotal Study of the May Health System in Transvaginal Ablation of Ovarian Tissue under Ultrasound Guidance in Women with Infertility due to Polycystic Ovary Syndrome

Начало: 25.03.2024 Край: 01.09.2029 Възраст: 18–40 г.
United States May Health NCT06206746
Набира участници Фаза 2
18F-Fluciclovine PET/CT in Multiple Myeloma
Multiple Myeloma Newly Diagnosed Multiple Myeloma (NDMM) Relapsed and/or Refractory Multiple Myeloma (RRMM)

Background: Multiple myeloma (MM) is an incurable cancer of certain blood cells. MM often returns after treatment, and most people survive only 5 to 8 years after diagnosis. To improve survival, researchers need to find ways to identify returning disease earlier. Objective: To find out if the radiotracer 18F-fluciclovine (a substance injected into the blood during imaging scans) is better at detecting MM than the one (18F-FDG) currently used for this purpose. Eligibility: Adults aged 18 years or older with MM. The MM may be newly diagnosed (NDMM); or it may have returned or failed to respond after at least 1 prior line of treatment (RRMM). Design: Participants will be screened. They will have blood tests. They will have a positron emission tomography (PET) or computed tomography (CT) scan using 18F-FDG. The radiotracer will be injected into a vein. Then participants will lie on a table while the PET/CT scan takes images of their body. All participants will have 3 study visits. During each visit they will have: Two PET/CT scans. One with 18F-FDG, one with 18F-fluciclovine. An optional magnetic resonance imaging scan. A bone marrow biopsy. An area on the hip will be numbed; a needle will be inserted to draw out a sample of the soft tissue from inside the bone. These tests may be spread over 30 days for each visit. NDMM participants will have their second study visit 2 to 4 weeks after they complete their usual treatment for the disease. RRMM participants will have their second visit 6 months after their first. All participants will have a third study visit after 5 years or when their disease progresses.

Начало: 25.03.2024 Край: 06.12.2031 Възраст: 18–120 г.
United States National Cancer Institute (NCI) NCT06103838
Набира участници Фаза 1
First Time in Human Study of Long Acting VH4524184 Formulations
HIV Infections

The purpose of this study is to identify 1 or more doses of parenterally administered VH4524184 that are safe, well tolerated and yield a PK drug exposure profile necessary to deliver a long-acting antiretroviral therapy for the treatment of HIV-1 infection.

Начало: 21.03.2024 Край: 21.01.2028 Възраст: 18–55 г.
United States ViiV Healthcare NCT06310551
Набира участници Фаза 2
A Multicenter Trial to Identify Optimal Atezolizumab Biomarkers in the Setting of Recurrent Glioblastoma. The MOAB Trial
Recurrent Glioblastoma

This is to study if neoadjuvant atezolizumab therapy is beneficial for patients with recurrent glioblastoma and a low mutational burden.

Начало: 21.03.2024 Край: 01.01.2028 Възраст: от 18 г.
United States Duke University NCT06069726
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