Clinical trials: Stenosis
Williams Syndrome, Duplication
Defining the Brain Phenotype of Children With Williams Syndrome
Background: Little is known about how the brain changes during childhood and adolescence, how genes affect this process, or how the brains of people with 7q11.23 genetic variation change during this period.
- Trial name
- NCT01132885
- Where
- United States
- Volunteers
- 415 people, healthy volunteers welcome
- Sponsor
- National Institute of Mental Health (NIMH)
Asymptomatic Carotid Stenosis, Symptomatic Carotid Stenosis
Transcranial Doppler(TCD) Evaluation of High Intensity Transient Signals and Carotid Disease
Carotid Disease causes 10% of strokes. The Investigators are attempting to investigate the use of Transcranial Doppler to see if this is and effective, efficient, and/or valid way to identify individuals at highest risk for…
- Conditions
- Asymptomatic Carotid Stenosis, Symptomatic Carotid Stenosis, TCD, HITS
- Trial name
- TCD (NCT05829200)
- Testing
- Transcranial Doppler (TCD)
- Where
- United States
- Volunteers
- healthy volunteers welcome
- Sponsor
- Ochsner Health System
Williams Syndrome
Fat Distribution and Glucose Metabolism in Williams Syndrome
Williams Syndrome (WS) is a genetic syndrome with features that may include vascular stenoses, neuro-developmental changes, and a variety of endocrine and metabolic abnormalities, including impaired glucose metabolism and…
- Trial name
- NCT01864304
- Where
- United States
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- Massachusetts General Hospital
Healthy, Hypertrophic Cardiomyopathy
Investigation Into the Use of Ultrasound Technique in the Evaluation of Heart Disease
The human heart is divided into four chambers. One of the four chambers, the left ventricle, is the chamber mainly responsible for pumping blood out of the heart into the circulation.
- Conditions
- Healthy, Hypertrophic Cardiomyopathy, Left Ventricular Hypertrophy
- Trial name
- NCT00001632
- Where
- United States
- Volunteers
- 195 people, healthy volunteers welcome
- Sponsor
- National Heart, Lung, and Blood Institute (NHLBI)
Cardiomyopathy, Hypertrophic
The Chinese Hypertrophic Cardiomyopathy Study(CHCS)
Hypertrophic cardiomyopathy (HCM) is one of the most common inherited cardiac diseases, with a prevalence of ∼0.2%. Sudden cardiac death (SCD), heart failure and stroke are the major poor outcomes of HCM.
- Trial name
- CHCS (NCT02696135)
- Where
- China
- Volunteers
- 3,000 people, healthy volunteers welcome
- Sponsor
- China National Center for Cardiovascular Diseases
Disc Degenerative Disease, Spondylolisthesis
A Clinical Study of a Spine Fusion System in Vertebral Body Fusion Surgery
The primary objective of this study is to demonstrate that the efficacy and safety of Spine fusion system manufactured in China is no inferior than imported product.
- Conditions
- Disc Degenerative Disease, Spondylolisthesis, Spinal Fracture, Spinal Deformity
- Trial name
- NCT02252185
- Testing
- Johnson&Johnson Medical Suzhou made Spine Fusion System, Imported EXPEDIUM screws and OPAL cage
- Where
- 8 sites in China
- Volunteers
- 106 people, healthy volunteers welcome
- Sponsor
- Johnson & Johnson Medical (Suzhou) Ltd.
Calcific Aortic Stenosis, Calcific Aortic Stenosis - Bicuspid Valve
Identification of Genetic Causes of Calcific Aortic Valve Disease
This study aims to identify the molecular genetic causes of the variability in development of calcific aortic valve disease in bicuspid and tricuspid aortic valves and their associated aortic dilation.
- Conditions
- Calcific Aortic Stenosis, Calcific Aortic Stenosis - Bicuspid Valve, Aortic Valve Disease, Aortic Valve Calcification
- Trial name
- NCT04149600
- Testing
- Patients scheduled to undergo aortic valve replacement or aortic surgery at BIDMC will be approached for participation in this study.
- Where
- United States
- Volunteers
- 1,000 people, healthy volunteers welcome
- Sponsor
- Beth Israel Deaconess Medical Center
Cardiac Amyloidosis
Screening Algorithm for Early Detection of Occult Cardiac Amyloidosis
Early diagnosis of cardiac amyloidosis (CA) is crucial because of the poor overall survival, high mortality and the need for early therapy including new treatment possibilities for transthyretin amyloidosis.
- Trial name
- EARLY-CA (NCT05693376)
- Where
- Germany
- Volunteers
- 85 people, healthy volunteers welcome
- Sponsor
- University Hospital, Essen
Urethral Stricture
Effectiveness of Intermittent Bladder Catheterization (IBC) in Reducing Recurrence of Urethral Stricture
The goal of this randomized controlled trial is to To assess the effectiveness of intermittent bladder catheterization (IBC) in reducing the recurrence of urethral stricture among females in tertiary care hospital, Lahore.
- Trial name
- NCT06064968
- Testing
- Intermittent bladder catheterization
- Where
- Pakistan
- Volunteers
- 54 people, healthy volunteers welcome
- Sponsor
- University of Health Sciences Lahore
Heart Failure, Aortic Stenosis
The Role of Cardiac Mechanics, Biomarkers and Frailty in Aortic Stenosis
The role of cardiac mechanics, circulating biomarkers and frailty in predicting outcomes in patients with aortic stenosis after aortic valve replacement (SCRABLES -The 2-Parts Study) Part I: Observational study to characterize…
- Trial name
- SCRABLES (NCT02856620)
- Testing
- Observational only
- Where
- Canada
- Volunteers
- 450 people, healthy volunteers welcome
- Sponsor
- Christine Henri
Crohn Disease
Comparing Endoscopic Strictureplasty vs. Balloon Dilation in Crohn's Disease Strictures
Crohn's disease (CD) is an inflammatory bowel disease characterized by chronic ulcers, strictures, and penetrating lesions in the intestinal tract.
- Trial name
- ES vs BD in CD (NCT06203782)
- Testing
- endoscopic stricturoplasty, endoscopic balloon dilation
- Where
- China
- Volunteers
- 102 people, healthy volunteers welcome
- Sponsor
- Second Affiliated Hospital, Zhejiang University, School of Medicine
Ankle Osteoarthritis, Knee Osteoarthritis
Gait Asymmetry Assessed Using Portable Gait Analysis System
To date, detailed analysis of movement patterns in orthopaedic conditions are mainly performed in research projects. Because these tests are time consuming, they are not feasible in clinical routine or in standard examinations.
- Conditions
- Ankle Osteoarthritis, Knee Osteoarthritis, Hip Osteoarthritis, Lumbar Spine Stenosis
- Trial name
- Asymmetry (NCT02489188)
- Testing
- arthroplasty, manual therapy, lumbar spinal stenosis decompression
- Where
- Switzerland
- Volunteers
- 150 people, healthy volunteers welcome
- Sponsor
- University Hospital, Basel, Switzerland
Degenerative Lumbar Canal Stenosis
Comparison Between The Results of Open and Microsurgical Decompression in Degenerative Spinal Canal Stenosis in Lumbar Spine
To compare the outcomes of open and microsururgical decompression in degenerative spinal stenosis in lumbar spine
- Trial name
- NCT06722859
- Testing
- Open surgical decompression in degenerative lumbar canal stenosis, Microsurgical decompression
- Volunteers
- 44 people, healthy volunteers welcome
- Sponsor
- Assiut University
Rheumatic Heart Disease, Mitral Stenosis
Genetic Susceptibility to Rheumatic Heart Disease in the Pacific Region
The purpose of this study is to investigate whether there are genetic differences between patients with rheumatic heart disease and members of the general population.
- Trial name
- NCT02188862
- Where
- 3 sites in Fiji, New Caledonia and 1 more
- Volunteers
- 2,372 people, healthy volunteers welcome
- Sponsor
- University of Oxford
TAVI(Transcatheter Aortic Valve Implantation), Conduction Disorder
Biomarkers of Inflammation and Fibrosis in Conduction Disorders After TAVI
Prediction of conduction disorders (CDs) in patients with severe aortic stenosis (AS) undergoing transcatheter aortic valve implantation (TAVI) is an important and complex process with a significant impact on patient outcomes.
- Conditions
- TAVI(Transcatheter Aortic Valve Implantation), Conduction Disorder, Aortic Stenosis, Permanent Pacemaker Implantation
- Trial name
- NCT07201363
- Testing
- Biomarkers of inflammation and fibrosis in pre-procedural serum blood samples, Transthoracic echocardiography with myocardial deformation analysis and staging according to the extent of cardiac damage related to AS
- Where
- Croatia
- Volunteers
- 102 people, healthy volunteers welcome
- Sponsor
- Clinical Hospital Center Rijeka
Healthy Participants
A Study to Evaluate the Effects on the Single-Dose Drug Levels of Mavacamten in Healthy Participants
The purpose of this study is to evaluate the effects on the single-dose drug levels of mavacamten in healthy participants.
- Trial name
- NCT05362045
- Testing
- Mavacamten
- Where
- 4 sites in United States
- Volunteers
- 158 people, healthy volunteers welcome
- Sponsor
- Bristol-Myers Squibb
Lumbar Disc Herniation, Lumbar Discogenic Pain
Comparing General Anesthesia, General Anesthesia With ESP Block or TLIP Block in Patients Undergoing Lumbar Surgeries
The regional methods of anesthesia for the neurosurgical operations of the spine and spinal cord reducing the needs for opioids intra operatively and reducing pain in the postoperative period, decrease the numbers of failed back…
- Conditions
- Lumbar Disc Herniation, Lumbar Discogenic Pain, Lumbar Spinal Stenosis, Failed Back Surgery Syndrome
- Trial name
- NCT05447780
- Testing
- regional anesthesia
- Where
- Ukraine
- Volunteers
- 450 people, healthy volunteers welcome
- Sponsor
- Anesthesia Research Group UA
Williams Syndrome, Lipedema
Williams Syndrome Strength, Hormones, Activity & Adiposity, DNA Programming, Eating Study
Williams syndrome (WS) is a rare microdeletion genetic disorder that has a broad phenotype including many endocrine and metabolic abnormalities. Dr.
- Trial name
- SHAAPE (NCT03758651)
- Where
- United States
- Volunteers
- 144 people, healthy volunteers welcome
- Sponsor
- Massachusetts General Hospital
RAS Mutation, Neurofibromatosis 1
RASopathy Biorepository
The RASopathies are a group of developmental disorders caused by genetic changes in the genes that compose the Ras/mitogen activated protein kinase (MAPK) pathway. New RASopathies are being diagnosed frequently.
- Conditions
- RAS Mutation, Neurofibromatosis 1, Noonan Syndrome, Noonan Syndrome With Multiple Lentigines
- Trial name
- NCT04395495
- Where
- United States
- Volunteers
- 1,000 people, healthy volunteers welcome
- Sponsor
- Children's Hospital Medical Center, Cincinnati
Glutathione Peroxidase Activity, Aortic Stenosis
GPx Activity in Subjects With Aortic Stenosis Undergoing TAVR
The aim of this project is to investigate the association of glutathione peroxidase (GPx) and severe aortic stenosis (AS), as well as the impact of transcatheter aortic valve replacement (TAVR) on GPx activity post-procedure.
- Conditions
- Glutathione Peroxidase Activity, Aortic Stenosis, Transcatheter Aortic Valve Replacement
- Trial name
- NCT04268160
- Testing
- Blood draw to measure GPx activity, Blood draw to measure SOD activity, Blood draw to measure Lp(a) levels
- Where
- United States
- Volunteers
- healthy volunteers welcome
- Sponsor
- University of Florida