Clinical trials: Obturation
Venous Occlusion
Venous Occlusion and Limb Swelling
Problems affecting the veins in the legs can cause discomfort and swelling. We want to see how artificially and reversibly blocking the leg veins affects swelling in the lower limb.
- Trial name
- NCT02241343
- Testing
- Venous occlusion (leg tourniquet, made in-house)
- Where
- United Kingdom
- Volunteers
- 1 people, healthy volunteers welcome
- Sponsor
- Imperial College London
Dentin Sensitivity
Assessment of the Efficacy of an Experimental Occlusion Technology Dentifrice in Dentinal Hypersensitivity
This study will evaluate the effectiveness of an experimental dentifrice containing stannous fluoride, an established dentine tubule occlusion technology, at reducing dentine hypersensitivity (DH) compared to a negative control…
- Trial name
- NCT02861664
- Testing
- Stannous fluoride (SnF2), Sodium monofluorophosphate (SMFP)
- Where
- China
- Volunteers
- 135 people, healthy volunteers welcome
- Sponsor
- GlaxoSmithKline
Age-Related Macular Degeneration, Geographic Atrophy
Evaluation of the Precision of the Microperimetry Function of the Spectral OCT/SLO
To conduct a precision study to assess the microperimetry function of the Spectral OCT/SLO. The study will assess variability across measurements taken by three different operator-device configuration across clinical sites…
- Conditions
- Age-Related Macular Degeneration, Geographic Atrophy, Diabetic Retinopathy, Macular Edema
- Trial name
- NCT01692938
- Where
- 3 sites in United States
- Volunteers
- 32 people, healthy volunteers welcome
- Sponsor
- Optos, PLC
Sickle Cell Disease, Sickle Cell Anemia
Microvascular Blood Flow in Sickle Cell Anemia
Sickle cell disease (SCD) is an inherited blood disorder that causes the red blood cells to change their shape from a round shape to a half-moon/crescent or sickled shape.
- Trial name
- NCT01566890
- Testing
- regadenoson infusion with contrast-enhanced ultrasound, contrast-enhanced ultrasound
- Where
- 2 sites in United States
- Volunteers
- 91 people, healthy volunteers welcome
- Sponsor
- Versiti Blood Health
Ischemia, Retinal Vein Occlusion
Study of 2.0 mg Ranibizumab in Subjects With Ischemic Central Retinal Vein Occlusion (RAVE2)
The RAVE 2 trial is a phase I, open label, 12-month trial of intravitreal ranibizumab 2.0 mg in patients with ischemic CRVO who have been either previously treated with ranibizumab or treatment naïve.
- Conditions
- Ischemia, Retinal Vein Occlusion, Pathologic Processes, Retinal Diseases
- Trial name
- RAVE2 (NCT01225146)
- Testing
- ranibizumab
- Where
- United States
- Volunteers
- 8 people, healthy volunteers welcome
- Sponsor
- David M. Brown, M.D.
Infertility
Effect of Cervical Occlusion During Intrauterine Insemination (IUI)
Study Hypothesis: There is a difference in pregnancy rates between intrauterine insemination (IUI) in cycles performed with cervical occlusion by a balloon catheter designed for sonohysterograms as compared to those performed…
- Trial name
- NCT00951171
- Testing
- Intrauterine Insemination, IUI with the standard inseminator
- Where
- United States
- Volunteers
- 93 people, healthy volunteers welcome
- Sponsor
- Women and Infants Hospital of Rhode Island
Blood Pressure
Tourniquets Increase Proximal Pressure
There is an urgent clinical need to improve survival and neurologic outcomes after cardiac arrest. When a patient goes into cardiac arrest, cardiopulmonary resuscitation (CPR) with chest compressions is the current standard of…
- Trial name
- NCT05324306
- Testing
- combat application tourniquets (CAT)
- Where
- United States
- Volunteers
- 27 people, healthy volunteers welcome
- Sponsor
- Medical University of South Carolina
Healthy
Comparison of Two Devices Using Near-infra Red Spectroscopy During a Vascular Occlusion Test
Tissue oxygen saturation is non-invasively measured using near-infrared spectroscopy, by two device, INVOS®(somanetics Corporation, USA ) and InSpectra™ (Hutchinson Technology, USA).
- Trial name
- NCT01848977
- Testing
- vascular occlusion test
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Seoul National University Hospital
Sterilization, Female, Fallopian Tube Occlusion
Development of an Intrauterine Pressure Threshold to Confirm Tubal Occlusion
The overarching goal of this study is to find an alternative method to hysterosalpingogram (HSG) to confirm bilateral tubal occlusion after permanent contraception.
- Trial name
- NCT04071392
- Testing
- Hysterosalpingogram (HSG)
- Where
- United States
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- Oregon Health and Science University
Denture Retention
A Study to Investigate a Method to Measure Food Occlusion by Denture Adhesives in Denture Wearers
The purpose of this study is to evaluate a methodology to determine the ability of a denture adhesive to restrict food ingress underneath dentures during eating.
- Trial name
- NCT03345108
- Testing
- Denture Adhesive Cream (Conventional Application), Denture Adhesive (Continuous Strip Application), No Adhesive
- Where
- United States
- Volunteers
- 48 people, healthy volunteers welcome
- Sponsor
- GlaxoSmithKline
Spinal Cord Injury, Autonomic Dysreflexia
Treatment of Post-SCI Hypotension
While treatment strategies for OH have been identified for use in persons with acute SCI, the field of SCI medicine lacks a gold standard for treatment thresholds and well-defined outcome parameters.
- Conditions
- Spinal Cord Injury, Autonomic Dysreflexia, Orthostatic Hypotension, Baroreceptor Integrity
- Trial name
- NCT02919917
- Testing
- Midodrine Hydrochloride
- Where
- 2 sites in United States
- Volunteers
- 66 people, healthy volunteers welcome
- Sponsor
- James J. Peters Veterans Affairs Medical Center
Dentinal Hypersensitivity
Exploratory Study to Evaluate the Efficacy of an Occlusion Based Dentifrice in Relief of Dentinal Hypersensitivity
The purpose of this exploratory study is to compare the treatment effect on dentinal hypersensitivity of a tubule occluding dentifrice as measured by Schiff and Tactile sensitivity.
- Trial name
- NCT01831817
- Testing
- 5% calcium sodium phosphosilicate/ sodium monofluorophosphate dentifrice, 0% calcium sodium phosphosilicate/ sodium monofluorophosphate dentifrice, Sodium monofluorophosphate dentifrice
- Where
- United States
- Volunteers
- 140 people, healthy volunteers welcome
- Sponsor
- GlaxoSmithKline
Brittle Nail Syndrome
Topical Cyclosporine Suspension for the Treatment of Brittle Nails
Brittle nail syndrome (BNS) refers to nails that exhibit splitting, raggedness (fraying of the distal edge), and peeling (lamellar onychoschizia).(1) This is a common problem, affecting approximately 20% of women, with higher…
- Trial name
- NCT01064830
- Testing
- topical cyclosporine ophthalmic suspension 0.05%, vehicle
- Where
- United States
- Volunteers
- 21 people, healthy volunteers welcome
- Sponsor
- University of North Carolina, Chapel Hill
Obstructive Sleep Apnea, Hypoxemia
Mechanisms of Endothelial Cell Dysfunction in Sleep Apnea
Sleep apnea is a common sleep disorder characterized by temporary stops in breathing during sleep and has been associated with the development of cardiovascular disease.
- Trial name
- NCT00859950
- Testing
- Continuous Positive Airway Pressure (CPAP)
- Where
- United States
- Volunteers
- 70 people, healthy volunteers welcome
- Sponsor
- Weill Medical College of Cornell University
Retinal Vein Occlusion, Macular Edema
A Retrospective Study of Anti-Vascular Endothelial Growth Factor (VEGF) Injections for Retinal Vein Occlusion or Diabetic Macular Edema
This retrospective data review study will evaluate anti-VEGF injections for retinal vein occlusion (RVO) or diabetic macular edema (DME).
- Trial name
- NCT01918371
- Testing
- Anti-VEGF
- Where
- United States
- Volunteers
- 323 people, healthy volunteers welcome
- Sponsor
- Allergan
Endothelial Dysfunction, Obesity
Leptin Infusion and Endothelial Vasomotor Response
Adipose tissue is an active endocrine organ producing several hormones with circulatory and metabolic effects. In 1994, the hormone leptin was discovered.
- Conditions
- Endothelial Dysfunction, Obesity, Vasodilation, Venous Occlusion Plethysmography
- Trial name
- LIVARM (NCT04374500)
- Testing
- Leptin infusion plus vasodilators in healthy men, Leptin infusion in healthy men, Vasodilators in CAD patients
- Where
- 2 sites in Sweden, United Kingdom
- Volunteers
- 103 people, healthy volunteers welcome
- Sponsor
- Stefan Soderberg
Glaucoma, Glaucoma Suspect
Philadelphia Telemedicine Glaucoma Detection and Follow-Up Study
The goal is to conduct a 5-year prospective, randomized controlled trial to test an innovative, community-based intervention using posterior and anterior fundus photography of the optic nerve and macula and intraocular eye…
- Conditions
- Glaucoma, Glaucoma Suspect, Diabetic Retinopathy, Ocular Hypertension
- Trial name
- NCT02390245
- Testing
- Free Eye Screenings, Enhanced Intervention, Usual Care
- Where
- United States
- Volunteers
- 906 people, healthy volunteers welcome
- Sponsor
- Wills Eye
Hearing Loss, Sensorineural
Sound Quality Comparisons With Different Hearing Aid Couplings and Venting Systems
Participants will be comparing the sound quality of their own voice and the sound quality of streamed music using universal couplings and a custom earmold with a dynamic vent.
- Trial name
- NCT05180630
- Testing
- Audeo P90 hearing aid with custom earmolds using dynamic venting, Audeo P90 hearing aid with Open domes, Audeo P90 hearing aid with Vented domes
- Where
- United States
- Volunteers
- 17 people, healthy volunteers welcome
- Sponsor
- Sonova AG
Heart Diseases, Coronary Disease
CES1 Carriers in the PAPI Study
This study builds, in part, upon preliminary results generated as part of the Pharmacogenomics Anti-Platelet Intervention (PAPI) Study (NCT00799396).
- Conditions
- Heart Diseases, Coronary Disease, Coronary Artery Disease, Cardiovascular Diseases
- Trial name
- NCT03188705
- Testing
- Clopidogrel, Aspirin
- Where
- United States
- Volunteers
- 6 people, healthy volunteers welcome
- Sponsor
- University of Maryland, Baltimore
Retinal Vein Occlusion, Macular Edema
Efficacy of an Intravitreal DEX Implant in Retinal Vein Occlusion Following Treatment With Anti-VEGF Injections.
To test the efficacy of a 0.7 mg intravitreal dexamethasone implant (Ozurdex®) on macular function and recalcitrant macular edema associated with retinal vein occlusion following treatment with 2 or more prior intravitreal…
- Trial name
- NCT01449682
- Testing
- Ozurdex
- Where
- United States
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- Retina Macula Institute