Autonomic nervous system disorder

This phase 1 trial tests a radioactive drug called 211At-MABG in 16 adults with advanced neuroendocrine cancers, including pheochromocytoma and paraganglioma. The drug delivers radiation directly to cancer cells that show up on a special scan. The main goal is to see if the treat…

This study looks back at how well a type of targeted radiation therapy (PRRT) works for people with advanced pheochromocytoma and paraganglioma, rare tumors of the adrenal glands. Researchers will analyze data from about 210 patients treated in Italy over 24 years. The goal is to…

This study will compare a new radioactive tracer, 18F-AmBF3TATE, to the standard tracer 68Ga-DOTATATE for PET scans in people with neuroendocrine tumors. The goal is to see if the new tracer is as good or better at finding tumors. About 51 participants will receive both tracers a…

This study will test a new device that measures blood pressure and heart function continuously without needles. It will be used during standard autonomic function tests (like the Valsalva maneuver and tilt table) in 75 patients with orthostatic intolerance. The goal is to see if …

This phase 2 trial tests whether a nitric oxide spray (glyceryl trinitrate) can prevent dangerous blood pressure spikes during bowel care in people with spinal cord injury. 26 participants will receive either the active spray or a placebo during two at-home bowel care sessions. T…

This small pilot study is testing whether a non-invasive device that stimulates the vagus nerve (nVNS) can help people with long-term muscle and joint pain who also have problems with automatic body functions like blood pressure, digestion, and heart rate. Twelve adults with chro…

This study will test whether a single dose of beetroot juice can improve blood pressure and heart rate recovery after light cycling in adults with type 2 diabetes. About 20 participants aged 40-65 will receive either beetroot juice or a placebo in random order. The goal is to see…

This study tests whether a simple breathing exercise, called inspiratory muscle training, can improve the body's stress response and reduce symptoms like pain, fatigue, and sleep problems in women with fibromyalgia. Fifty-one women will be randomly assigned to real training, a sh…

This study will use wearable devices like heart rate monitors and sleep trackers to see how financial stress and news affect your body. Researchers will follow 2,500 adults remotely, collecting data on heart rate, sleep, and stress levels. The goal is to create AI tools that can …

This study checks if a French version of the New Mobility Score (NMS) works well for older adults hospitalized after a hip fracture. The NMS is a simple test that measures how well a person can move indoors, outdoors, and while shopping. Researchers will test it with 100 patients…

This study looks at 300 adults with a brain bleed from a ruptured aneurysm. It tests a non-invasive headband to monitor brain blood flow and two nerve treatments (a neck injection and ear stimulation) to see if they improve brain function. The goal is to find better ways to preve…

This study follows 60 adults with pulmonary hypertension (high blood pressure in the lungs) for 2 years. Researchers will measure breathing problems during sleep and heart rate changes to see how they relate to the disease. No new treatment is given; participants continue their u…

This study will enroll 200 patients scheduled for surgery to remove rare adrenal tumors called pheochromocytomas or paragangliomas (PPGL). Before surgery, researchers will use a model to predict the risk of severe blood pressure swings during the operation. During surgery, a real…

This study looks at whether people with long-term spinal cord injury who also have a condition called autonomic dysreflexia (sudden high blood pressure) have changes in their heart structure. Researchers will use MRI scans to compare two groups: 24 people with high-level injury a…

This study tests how stimulating the vagus nerve at different frequencies affects heart rate, blood pressure, and breathing in 36 healthy adults. Participants will receive five different stimulation frequencies (including a sham) in random order. The goal is to find which frequen…

This study aims to find biological markers in blood and urine that could explain congenital central hypoventilation syndrome (CCHS), a rare disorder where the brain fails to control breathing during sleep. Researchers will collect samples from 40 adults with CCHS and healthy volu…

This study looks back at medical records of 150 children who had surgery for neuroblastic tumors in the lower chest. Some had a special X-ray (arteriography) before surgery to map a key spinal artery, while others did not. Researchers want to see if the imaging helps prevent spin…