Clinical trials: Contrast Agent
Exertional Heat Illness, Hydration Status
Comparing Risk of Heat Illness Based on Peak Core Temps During Preseason Football Camp Across 3 Different Age Levels
To collect field data in professional, collegiate, and high school football players to determine how they respond physiologically to the rigors of preseason training environment.
- Trial name
- NCT01954537
- Volunteers
- 22 people, healthy volunteers welcome
- Sponsor
- University of Minnesota
Ptosis, Macular Degeneration
Comparing Vision Tests in a Virtual Reality Headset to Existing Analogues
The purpose of this study is to compare the results of vision tests that are algorithmically derived and delivered through a virtual reality headset with those delivered through the existing technology standards (eg.
- Conditions
- Ptosis, Macular Degeneration, Ametropia
- Trial name
- RTS1 (NCT04714424)
- Testing
- Virtual Reality Headset
- Where
- United States
- Volunteers
- 84 people, healthy volunteers welcome
- Sponsor
- Icahn School of Medicine at Mount Sinai
Healthy
Single Dose Safety, Tolerance and Pharmacokinetic Study in Healthy Volunteers Undergoing Contrast-enhanced Abdominal Computed Tomography (CT)
This is a non-randomized dose-escalating study that will evaluate the safety and tolerability of GE-145 at four different dose levels through the assessment of clinical laboratories, vital signs, physical examinations…
- Trial name
- NCT01004770
- Testing
- GE-145 (AN113111) Injection, Visipaque (iodixanol) Injection
- Where
- United States
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- GE Healthcare
Renal Cell Carcinoma (Kidney Cancer), Kidney Cancers
Targeted Abdominal CT in Conjunction With Lung Cancer Screening
Early detection through screening can improve cancer survival by identifying it when it's most treatable. The NHS now offers Lung Cancer Screening (LCS) assessments to people aged 55-74 who have ever smoked.
- Conditions
- Renal Cell Carcinoma (Kidney Cancer), Kidney Cancers, AAA - Abdominal Aortic Aneurysm, Renal Stones
- Trial name
- TACTICAL1 (NCT07171190)
- Testing
- Lung Cancer Screening Invitation Intervention, Abdominal scan intervention
- Where
- United Kingdom
- Volunteers
- 6,272 people, healthy volunteers welcome
- Sponsor
- University of Cambridge
Ventricular Arrythmias
The V-Tachogram:Decreasing Ventricular Arrythmias When Injecting Contrast in the Left Ventricle
The purpose of this study is to determine if increasing the linear rise rate of injection of x-ray contrast in the heart during left ventriculograms(part of a cardiac Catheterization procedure) will decrease the incidence of…
- Trial name
- NCT00288756
- Testing
- lv injection of contrast
- Where
- Canada
- Volunteers
- 156 people, healthy volunteers welcome
- Sponsor
- Trillium Health Centre
Night Vision Complaints, Decrease in Night Vision
The Safety and Efficacy of Phentolamine Mesylate Ophthalmic Solution in Subjects With Severe Night Vision Disturbances
The objectives of this study are: To evaluate the efficacy of phentolamine mesylate 0.5% and 1.0% ophthalmic solution (Nyxol) in the treatment of night vision complaints, including reduced contrast sensitivity To evaluate the…
- Conditions
- Night Vision Complaints, Decrease in Night Vision, Disturbance; Vision, Loss
- Trial name
- NCT01703559
- Testing
- Phentolamine Mesylate Ophthalmic Solution 1.0%, Phentolamine Mesylate Ophthalmic Solution 0.5%
- Where
- United States
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Opus Genetics, Inc
Visual Fatigue
Visual Discomfort and Reading
Reading can be an uncomfortable and difficult task for some people. Symptoms include unpleasant somatic and perceptual effects, such as eye-strain, headache, and blurred text, despite normal visual acuity.
- Trial name
- NCT00402155
- Testing
- Stress on visual discomfort
- Where
- United States
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Southern California College of Optometry at Marshall B. Ketchum University
Obesity, Dyslipidemias
Evaluation of Systemic Microvascular Endothelial Function in Metabolically Healthy Obesity
Obesity is known to be a risk factor for cardiovascular disease (CVD), type 2 diabetes mellitus, gastrointestinal tract disease, respiratory problems (such as obstructive sleep apnea), joint and muscle problems, reproductive…
- Trial name
- NCT04233528
- Testing
- Evaluation of systemic skin microvascular endothelial function
- Where
- Brazil
- Volunteers
- 112 people, healthy volunteers welcome
- Sponsor
- National Institute of Cardiology, Laranjeiras, Brazil
Atrial Fibrillation
High-resolution MRI of Atrial Fibrillation Patients Prior to Focal Impulse and Rotor Modulation (FIRM) Ablation
Patients undergoing FIRM guided ablation of atrial fibrillation will undergo high resolution MRI imaging to determine correlation of underlying anatomic fibrotic regions with FIRM targeted sites for ablation.
- Trial name
- NCT03444337
- Testing
- Catheter Ablation
- Where
- United States
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Ohio State University
Bipolar Depression
Neural and Visual Responses to Light in Bipolar Disorder: A Novel Putative Biomarker
Objective. Bipolar Disorders (BD) are a major public health problem. The investigators still lack knowledge of the mechanisms which contribute to BD.
- Trial name
- LightEyeBD (NCT02048995)
- Where
- United States
- Volunteers
- 91 people, healthy volunteers welcome
- Sponsor
- Northwestern University
Renal Cell Carcinoma
Non-Contrast Perfusion Using Arterial Spin Labeled MR Imaging for Assessment of Therapy Response in Metastatic Renal Cell Carcinoma
Magnetic Resonance Imaging (MRI) including Arterial Spin Labeling (ASL) will be performed before, during, and after the treatment, in a total of up to 6 MRI sessions until 7 months after the first session, or when progression is…
- Trial name
- NCT04831138
- Testing
- MRI with ASL, ASL-MRI
- Where
- United States
- Volunteers
- 6 people, healthy volunteers welcome
- Sponsor
- University of Texas Southwestern Medical Center
Chronic Kidney Disease, Cystic Kidney Disease
Contrast-enhanced Ultrasound of the Kidney
The purpose of this research study is to evaluate contrast-enhanced ultrasound for kidney malignancies
- Trial name
- CEUS-CKD (NCT02684435)
- Testing
- Perflutren lipid microsphere
- Where
- 2 sites in United States
- Volunteers
- 63 people, healthy volunteers welcome
- Sponsor
- University of North Carolina, Chapel Hill
Contrast Induced Nephropathy
Comparison Between Effect of Acetazolamide and NaHco3 in Prevention of Contrast Nephropathy
The purpose of this study is whether Acetazolamide is effective in prevention of contrast nephropathy
- Trial name
- NCT00634491
- Testing
- sodium bicarbonate, Acetazolamide, normal salin
- Where
- Iran
- Volunteers
- 240 people, healthy volunteers welcome
- Sponsor
- Shiraz University of Medical Sciences
Breast Cancer
Comparison of Breast Cancer Screening With CESM to DBT in Women With Dense Breasts
The over-arching goal of the Contrast-Enhanced Spectral Mammography Imaging Screening Trial (CMIST) is to determine if dual-energy contrast-enhanced spectral mammography (CESM) can detect more cancers with fewer false positives…
- Trial name
- CMIST (NCT05625659)
- Testing
- Dual-Energy Contrast-Enhanced Spectral Mammography (CESM)
- Where
- 13 sites in United States, Canada
- Volunteers
- 2,032 people, healthy volunteers welcome
- Sponsor
- American College of Radiology
AKI - Acute Kidney Injury
Risk Factors and Deep Learning Model for CI-AKI
Contrast-associated acute kidney injury (CI-AKI) is a sudden and significant decline in renal function resulting from the use of a contrast agent.
- Trial name
- NCT06596785
- Where
- China
- Volunteers
- 2,000 people, healthy volunteers welcome
- Sponsor
- Xiao Li，MD
Alzheimer Disease
Association Between Cerebral Arterial Vascular Flow and Sleep Apnea in Neurodegenerative Alterations
Obstructive sleep apnea syndrome (OSAS) is a sleep-disordered breathing characterized by the occurrence of repeated upper airway obstructions leading to airflow reduction (hypopnea) or cessation (apnea).
- Trial name
- VAAPS (NCT02578303)
- Testing
- Vascular flow measurement by PC-MRI
- Where
- France
- Volunteers
- 139 people, healthy volunteers welcome
- Sponsor
- Central Hospital Saint Quentin
Breast Cancer, Breast Neoplasms
Biennial CEM in Women With a Personal History of Breast Cancer
This is a prospective clinical trial that will examine if biennial contrast-enhanced mammography added to annual 3D mammography (tomosynthesis) substantially improves breast cancer detection with minimal increase in…
- Conditions
- Breast Cancer, Breast Neoplasms, Breast Cancer Female, Neoplasms
- Trial name
- NCT06105749
- Testing
- contrast-enhanced mammography
- Where
- 6 sites in United States
- Volunteers
- 1,600 people, healthy volunteers welcome
- Sponsor
- Wendie Berg
Type 2 Diabetes
Myocardial Perfusion in Type 2 Diabetes
The investigators aimed to evaluate microvascular circulation with novel method: real-time myocardial contrast echocardiography in patients with type 2 diabetes and normal coronary arteries.
- Trial name
- NCT01043965
- Testing
- Metformin
- Volunteers
- 61 people, healthy volunteers welcome
- Sponsor
- University of Sao Paulo General Hospital
Radiocontrast-induced Nephropathy
Mechanisms for the Effect of Acetylcysteine on Renal Function After Exposure to Radiographic Contrast Material
Millions of people receive radiographic contrast material for investigations like CT and coronary angiography. While considered safe in healthy patients, it can cause acute renal impairment.
- Trial name
- NCT00558142
- Testing
- Acetylcysteine, Visipaque 320
- Where
- United Kingdom
- Volunteers
- 107 people, healthy volunteers welcome
- Sponsor
- University of Edinburgh
Contrast Induced Nephropathy
Oral Versus Intravenous Hydration to Prevent Contrast Induced Nephropathy
The increased risk for contrast-induced nephropathy (CIN) in patients with chronic kidney disease (CKD) undergoing coronary angiography (CAG) has been established.
- Trial name
- HYDRATE (NCT01093131)
- Testing
- Oral hydration, Oral sodium bicarbonate, Intravenous Hydration
- Where
- United States
- Volunteers
- healthy volunteers welcome
- Sponsor
- The Western Pennsylvania Hospital