Clinical trials: Stricture
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
Cardiomyopathy, Hypertrophic, Cardiomyopathy, Dilated
Individualized Early Risk Assessment for Heart Diseases
Heart failure (HF) is the common end-stage of different medical conditions. It is the only growing cardiovascular disease and its prognosis remains worse than that of many malignancies.
- Trial name
- IndivuHeart (NCT02417311)
- Testing
- Skin biopsy, genotyping and disease phenotyping
- Where
- Germany
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- Universitätsklinikum Hamburg-Eppendorf
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
Urethral Stricture, Male
Laser Visual Internal Urethrotomy With Versus Without Paclitaxel Injection
To evaluate the outcome of visual internal urethrotomy in treating urethral strictures in males with a holmium: yttrium-aluminium garnet (YAG) laser versus when combined with intralesional injection of paclitaxel.
- Trial name
- NCT06123520
- Testing
- Ho-YAG Laser Visual internal urethrotomy, Ho-YAG Laser Visual internal urethrotomy combined with intralesional submucosal injection of Paclitaxel
- Where
- Egypt
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Ain Shams University
Bile Duct Neoplasms, Jaundice, Obstructive
A Single-center, Prospective Cohort Study on the Differentiation of Benign and Malignant Bile Duct Stenosis Based on Bile and Peripheral Blood cfDNA Methylation Profiles
The goal of this observational study is to detect the methylation characteristics of cfDNA in the bile and plasma of patients with bile duct stricture.
- Conditions
- Bile Duct Neoplasms, Jaundice, Obstructive, Bile Duct Diseases
- Trial name
- NCT06115655
- Testing
- cfDNA methylation detection
- Where
- China
- Volunteers
- 161 people, healthy volunteers welcome
- Sponsor
- Air Force Military Medical University, China
Atherosclerosis, Hypercholesterolemia
Rosuvastatin Affecting Aortic Valve Endothelium
Recent studies support the hypothesis that aortic stenosis (AS) develops due to atherosclerosis affecting the aortic valve endothelium.
- Trial name
- NCT00114491
- Testing
- Rosuvastatin
- Where
- Portugal
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- Hospital Pedro Hispano
Hypertrophic Cardiomyopathy (HCM), Left Ventricular Hypertrophy
AI-Enabled Diagnosis and Prognosis of Hypertrophic Cardiomyopathy
By harnessing artificial intelligence to decode the 12-lead electrocardiogram, the project will enable precise ECG-based phenotyping of hypertrophic cardiomyopathy-accurately classifying septal, apical, and other morphologic…
- Trial name
- NCT07263204
- Where
- China
- Volunteers
- 15,000 people, healthy volunteers welcome
- Sponsor
- Second Affiliated Hospital, Zhejiang University, School of Medicine
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.
Carotid Artery Stenosis
Long-term Neurocognitive Sequelae of Subclinical Microembolization During Carotid Interventions
Microembolization is commonly associated with carotid artery stenting (CAS), but our understanding of subclinical microembolization is superficial.
- Trial name
- NCT01718600
- Testing
- Neuropsychological testing
- Where
- 3 sites in United States
- Volunteers
- 207 people, healthy volunteers welcome
- Sponsor
- Stanford University
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)
Urethral Stricture
Urethral Resistive Index (URI): A New Parameter for Diagnosing Urethral Obstruction
This prospective observational study aims to evaluate the diagnostic accuracy of a new, non-invasive uroflowmetry parameter called the Urethral Resistive Index (URI) for detecting urethral stricture in men.
- Trial name
- URI (NCT07403786)
- Testing
- Uroflowmetry with URI Calculation
- Where
- Turkey (Türkiye)
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Ankara City Hospital Bilkent
Urethral Stricture, Male, Hormone Deficiency
Urethral Stricture After Transurethral Resection of the Prostate/Bladder: a Prospective Study of Risk Factors
There is currently no prognostic or predictive risk marker for this urethral stricture disease. The most conservative standard treatment for urethral stricture (internal urethrotomy) has a very high recurrence rate (greater than…
- Conditions
- Urethral Stricture, Male, Hormone Deficiency, Fibrosis
- Trial name
- STRICT-TURP (NCT04795570)
- Testing
- Transurethral resection of the prostate or bladder
- Where
- Spain
- Volunteers
- 300 people, healthy volunteers welcome
- Sponsor
- University Hospital Virgen de las Nieves
Lumbar Spinal Stenosis, Cardiac Amyloidosis
Analysis of Lumbar Spine Stenosis Specimens for Identification of Transthyretin Cardiac Amyloidosis
Primary objective: To identify older adults with transthyretin cardiac amyloidosis (ATTR-CA) early in the course of the illness, at a time when disease modifying therapies are most effective.
- Conditions
- Lumbar Spinal Stenosis, Cardiac Amyloidosis, ATTR Amyloidosis Wild Type, ATTR Gene Mutation
- Trial name
- NCT06034405
- Testing
- Tc99-PYP or Tc99-HDMP Scan
- Where
- 6 sites in United States
- Volunteers
- 1,663 people, healthy volunteers welcome
- Sponsor
- Columbia University
Aortic Valve Stenosis, Aortic Valve Calcification
SLOW-Slower Progress of caLcificatiOn With Vitamin K2
A randomized 12-month trial will include two groups of 100 individuals aged over 50 years, with asymptomatic mild to moderate Aortic valve stenosis (AVA > 1 cm2, Vmax < 4 m/s).
- Conditions
- Aortic Valve Stenosis, Aortic Valve Calcification, Mitral Annular Calcification, Mitral Valve Calcification
- Trial name
- NCT04429035
- Testing
- Vitamin K2
- Where
- 2 sites in Greece
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- National and Kapodistrian University of Athens
Cardiovascular Diseases, Hypertension
Vascular Dysfunction in Hypertensive Postmenopausal Women
The purpose of this study is to investigate the role of ET-1 in mediating vasoconstrictor tone in hypertensive postmenopausal women (PMW) alone and in combination with a commonly prescribed Angiotensin II (ANG II) antagonist.
- Trial name
- NCT03371823
- Testing
- Normotensive, Hypertensives
- Where
- United States
- Volunteers
- 8 people, healthy volunteers welcome
- Sponsor
- University of Delaware
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
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
Myocardial Deformation, Coronary Artery Anomaly
Correlation Between Myocardial Deformation and Coronary Artery Tortuosity in Patients With Hypertrophic Cardiomyopathy
Correlation between Myocardial Deformation and Coronary Tortuosity and Analysis of Genetic Factors Among Hypertrophic Cardiomyopathy Patients
- Conditions
- Myocardial Deformation, Coronary Artery Anomaly, Hypertrophic Cardiomyopathy, Genetic Mutation
- Trial name
- NCT04830787
- Testing
- no intervention
- Where
- China
- Volunteers
- 302 people, healthy volunteers welcome
- Sponsor
- Henan Provincial People's Hospital
Discopathy, Herniated Cervical Disc
Post Market Clinical Follow up Study With the Cervical Disc Prothesis MOVE®-C
Study design: International, prospective, multicentre, non-randomised, observational study according to § 23b MPG. Objectives: Observational study to confirm the safety and performance of the cervical disc prosthesis MOVE®-C.
- Conditions
- Discopathy, Herniated Cervical Disc, Stenoses, Spinal, Radiculopathy
- Trial name
- PMCF_MOVE®-C (NCT05035693)
- Testing
- MOVE®-C
- Where
- 7 sites in Austria, Germany
- Volunteers
- 170 people, healthy volunteers welcome
- Sponsor
- NGMedical GmbH
Aortic Stenosis
Clinical Significance of Collagen Metabolism Changes in Left Cardiac Ventricle
As there are no clinical data in cardiology about the relationship between metabolism collagen changes and their clinical significance, the investigators will check the hypothesis that collagen metabolism changes, detected by…
- Trial name
- NCT00693797
- Where
- Czechia
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Charles University, Czech Republic