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NCT ID: NCT06386900 Enrolling by invitation - Overreaching Clinical Trials

The Impact of Grand Tour Cycling on Sleep and the Hematological and Metabolomic Profile in World-class Cyclists

Start date: July 1, 2023
Phase:
Study type: Observational

This project aims to identify the effect of a 3-week Grand Tour (e.g. Tour de France, Giro d'Italia, and Vuelta a España) on sleep, hematological parameters and the serum metabolome in world-class cyclists.

NCT ID: NCT06385951 Recruiting - Alzheimer Disease Clinical Trials

Spatial Navigation for the Early Detection of Alzheimer's Disease.

ALLO-task
Start date: March 5, 2024
Phase: N/A
Study type: Interventional

Alzheimer's Disease (AD) is the most common form of dementia and may contribute to 60-70 % of all cases. An early, accurate diagnosis of AD will become increasingly important with disease-modifying therapies. Different types of fluid and neuroimaging biomarkers are available for the early detection of AD. However, implementation of routine use of these biomarkers in clinical settings is held back due to the risk of overdiagnosis, increased cost and invasiveness of the assessment method. Therefore, novel biomarkers are needed beyond the amyloid and tau pathologies for the early diagnosis of AD. Neuropsychological paper and pencil tests can detect AD and discriminate between different clinical stages. Since medial temporal lobe structures, including the hippocampus and entorhinal cortex (EC), are involved in spatial navigation and degenerate in the earliest stages of AD, spatial navigation can be considered as an early cognitive biomarker of the disease. Nonetheless, the measurement of spatial navigation needs further improvement since the current paper and pencil tests lack ecological validity. Therefore, the test environment should be set up in immersive Virtual Reality (iVR). Dr. Andrea Castegnaro (Space and Memory Lab of University College of London) developed the Allocentric Spatial Update Task (ALLO task), which is an iVR task measuring egocentric and allocentric spatial abilities. Therefore, the main objective of this study is to evaluate whether allocentric and egocentric spatial navigation, measured by the ALLO iVR task can be considered a cognitive biomarker for the early detection of AD. In addition, the investigators want to report on the neuronal correlates of both spatial navigation strategies. Through the Department of Neurology of the University Hospital of Ghent, which has a large cognitive disorders clinic, patients with mild cognitive impairment and mild Alzheimer's dementia will be recruited. Participants will undergo standard clinical assessment, including a neuropsychological examination, Magnetic Resonance Imaging, a 18F-fluorodeoxyglucose PET and a Lumbar Puncture. In addition, participants will also be asked to undergo Tau PET imaging, Amyloid PET imaging and complete the ALLO iVR task. Healthy controls will also be recruited and have to undergo the same investigations, except for the amyloid PET and lumbar puncture.

NCT ID: NCT06384105 Recruiting - Urolithiasis Clinical Trials

Study of the Patient Radiation Dose During Five Endourological Procedures

PRDE
Start date: December 19, 2023
Phase: N/A
Study type: Interventional

In the medical world more and more procedures are performed with the use of ionizing radiation (x-ray), both diagnostic and therapeutic. The main and most known risk is the development of malignancies as a result of the use of ionizing radiation. Purpose of this study: To examine the patient radiation dose (PRD) if the frames per second (FPS) are set differently during the five most performed endourological procedures where fluoroscopy is used (insertion/replacement of ureteral stent, (mini-)percutaneous nephrolithotomy (PCNL/PNL), ureterorenoscopy (URS) and extracorporeal shock wave lithotripsy (ESWL/SWL)) and to propose an acceptable PRD for these procedures in a multicentric study.

NCT ID: NCT06383975 Not yet recruiting - Clinical trials for Persistent Atrial Fibrillation

VEin of MArshall Ethanolization vs Extended Pulmonary Vein PULSEd Field Ablation After Failed PVI for Persistent AF

VEMAPULSE
Start date: April 29, 2024
Phase: N/A
Study type: Interventional

The goal of this clinical trial is to compare two ablation techniques to treat patients with persistent atrial fibrillation (irregular and often very rapid heart rhythm). An ablation is a procedure during which some scars are made on the inside of the heart to break up the electrical signals that cause the irregular heartbeat. In this trial researchers will compare a new technique, which uses tiny electric shocks to make the scars, to the standard technique, which uses heat. The main question the trial aims to answer is: • Does the new technique work as well as the standard technique to prevent the irregular heartbeat from returning within one year of the procedure? Participants will: - Undergo an ablation with either the new or the standard technique - Visit the hospital 1, 3, 6, 9 and 12 months after the procedure for a check-up - Wear a device to register their heart rhythm for 24 hours before the 3 month visit and for 72 hours before the 6, 9 and 12 month visit - Record their heart rhythm at home every week - Complete a questionnaire 3, 6, 9 and 12 months after the procedure

NCT ID: NCT06383377 Recruiting - Safety Issues Clinical Trials

Evaluation of Performance, Safety and Benefit of the Wishbone HA as Bone Graft Substitute, a Pre-market Clinical Investigation

Start date: April 26, 2024
Phase: N/A
Study type: Interventional

This investigation is a pre-market, prospective, multi-center, randomized, single blinded, parallel controlled clinical investigation performed in at least 5 clinical centers for confirmatory purposes of the use of WHA as intended in the filling of extraction sockets to enhance preservation of the alveolar socket.

NCT ID: NCT06382558 Recruiting - Stroke Clinical Trials

Validity and Reliability of Sensorimotor Processing Paradigm

Start date: April 10, 2024
Phase:
Study type: Observational

Sensorimotor function of the upper limb is often impaired after stroke, even in the chronic phase (minimum 6 months after stroke). Currently, an optimal assessment for sensory processing, one of the most important sensory functions, does not exists. However, our research team has developed a novel assessment paradigm using the KINARM End-Point robot to assess the level of sensory processing of the upper limb. Within a previous study, the investigators examined the validity within 20 chronic stroke patients and 80 age-matched healthy controls by comparing the novel robotic assessment with a set of existing clinical and robotic assessments for the upper limb. The investigators hypothesize that the stroke patients will show a poorer performance on this novel assessment compared to the healthy controls, that the novel assessment will show better correlation coefficients with other sensory tests compared to motor tests, that the novel assessment can differentiate between different motor subgroups of chronic stroke patients, and that the novel assessment shows good test-retest reliability.

NCT ID: NCT06381973 Recruiting - Healthy Clinical Trials

Ventilation Distribution in COPD Patients During Breathing Exercises

Start date: April 15, 2024
Phase: N/A
Study type: Interventional

ELTGOL (Slow Expiration with the Opened Glottis in the Lateral posture) is an airway clearance technique performed in the lateral decubitus position. This technique focuses on optimizing ventilation of the infralateral lung (when the subject is lying in the lateral posture) to enhance local air-liquid interaction. Previous studies on ventilation differences between the infra- and supralateral lungs were conducted on healthy, young, male subjects, without the application of thoracic or abdominal pressure. This study aimed to assess ventilation distribution in right lateral recumbency in patients with chronic obstructive pulmonary disease (COPD), as well as healthy individuals, and investigate the impact of thoracic and abdominal manual pressures during ELTGOL on ventilation distribution.

NCT ID: NCT06381219 Recruiting - Clinical trials for Eosinophilic Esophagitis

Pediatric Eosinophilic Esophagitis (pedEoE): Effect of Allergen Heat Denaturation on EoE Remission: a Pilot Trial

Start date: December 19, 2023
Phase: N/A
Study type: Interventional

The objective of the study is to study whether the introduction of heated food products (more specifically heated hen's egg and/or cow's milk) in children with EoE would be possible without re-occurrence of the eosinophilic inflammation, while the intake of less heated products might cause disease recidive. Moreover, we would like to study whether the gradual re-introduction of less heated products after the most heated form is tolerated, could lead to tolerance induction in EoE.

NCT ID: NCT06380673 Recruiting - Food Allergy Clinical Trials

Stepwise Heat-Denaturated Protein Introduction for Tolerance Induction in Food Allergy

TEHITI
Start date: April 22, 2024
Phase: N/A
Study type: Interventional

This interventional study aims to validate an early heated protein introduction protocol in cow's milk allergic children who already developed tolerance towards extensively heated cow's milk, in order to speed up the development of complete cow's milk tolerance. Natural complete tolerance induction towards cow's milk takes several years of strict cow's milk avoidance with high risk of anaphylaxis by accidental cow's milk intake. By shortening the time towards complete tolerance, not only the quality of life of both children and parents ameliorates drastically, the time frame for potential anaphylactic reactions is also strongly reduced and can be considered as a preventive strategy to reduce allergic reactions too. Moreover, this strategy has proved efficient for hen's egg allergy. The main question this study wants to answer is whether a 12 months stepwise heated cow's milk introduction (either by gradual reduction of the cooking time or by the use of the Flemish Milk Ladder) in 20'-cooked cow's milk tolerant subjects, results in a larger proportion of complete cow's milk tolerant children after 12 months compared to natural tolerance induction (with 20' cooked milk introduction only).

NCT ID: NCT06379633 Recruiting - Social Anxiety Clinical Trials

Virtual Reality Exposure for Socially Anxious Adolescents

VIRTUS
Start date: March 27, 2024
Phase: N/A
Study type: Interventional

Overall in this project, the primary goal is to evaluate the efficacy of virtual reality exposure (VRE) for adolescents with elevated social anxiety using a three-arm randomized controlled trial: (1) virtual reality exposure (VRE); (2) in vivo exposure (IVE); and (3) waitlist (WL) - the control condition. It is predicted that both VRE and IVE will be more successful in decreasing social anxiety symptoms than the WL condition at post-assessment and that VRE will be as effective as in vivo in reducing social anxiety symptoms. Furthermore, it is expected that there will be no difference between the two active conditions in the long term (at 3- months & 6-months follow up). Similar results are expected in the secondary outcome measures, intended to capture the participants' general well-being. Moreover, the study has the following (secondary) objectives: - To elucidate potential working mechanisms of VRE and IVE - To identify predictors of adolescents' response to VRE and IVE - To assess to what extent adolescents accept VRE and IVE and how they experience it