Clinical trials: Measurement
Axial Length (AL), Anterior Chamber Deep (ACD)
A-mode vs PalmScan Ultrasonography: Biometric Measurements.
Ultrasonography has become a critical ancillary test in the clinical practice of ophthalmology. It is commonly used as a standardized method for assessing intraocular biometry.
- Conditions
- Axial Length (AL), Anterior Chamber Deep (ACD), Lens Thickness (LT)
- Trial name
- NCT00804869
- Testing
- PalmScan A2000 ultrasonography system (Micro Medical Devices, Calabasas, CA), Standard A-mode ultrasound (Eye Cubed™, Ellex, Adelaide, Australia).
- Where
- Mexico
- Volunteers
- healthy volunteers welcome
- Sponsor
- Asociación para Evitar la Ceguera en México
Visceral Stiffness, Liver Fibrosis
Visceral Stiffness Measurement Using Acoustic Radiation Force Impulse
The acoustic radiation force impulse (ARFI) technology provides real-time measurements of tissue stiffness. Aim: Using the ARFI ultrasonography, the investigators aims are to complete the correlation and validity studies between…
- Trial name
- ARFI (NCT01311934)
- Where
- Taiwan
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- China Medical University Hospital
All Conditions, All
Measurement of Ocular Microtremor With the iTremor Device in a Diverse US Cohort
To evaluate the reliability of using the iTremor device to accurately measure Ocular Microtremor (OMT) across a diverse cohort, representative of the US population, with a view to establishing this as a standard measurement tool…
- Trial name
- NCT07858214
- Where
- 2 sites in United States
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- Head Diagnostics
Hereditary Diseases
A Social Media Approach to Improve Genetic Risk Communication Phase I
The goal of this research study is to create an internet-based program designed to improve the communication of health and health history information among family members affected by Lynch syndrome.
- Trial name
- NCT01645904
- Testing
- Audiotaped Focus Group, Demographic Questionnaire, Audiotaped Interview
- Where
- United States
- Volunteers
- 49 people, healthy volunteers welcome
- Sponsor
- M.D. Anderson Cancer Center
Physical Activities, Muscle Strength
Impact of Digital Muscle Strength on Activity in Tech-Addicted University Students
Results from muscle strength assessment methods commonly used in physiotherapy can vary due to their lack of objective results and their reliance on the individual's muscle strength.
- Conditions
- Physical Activities, Muscle Strength, Digital Addiction
- Trial name
- NCT07442955
- Testing
- Evaluation of muscle strength
- Where
- Turkey (Türkiye)
- Volunteers
- 140 people, healthy volunteers welcome
- Sponsor
- Ondokuz Mayıs University
Pain Measurement
Creating a Czech Version of the Simplified Faces Pain Scale and the Simplified Concrete Ordinal Pain Scale
The aim is to create a Czech version of pain assessment tools in children, the Simplified Faces Pain Scale (S-FPS) and the Simplified Concrete Ordinal Scale (S-COS), including methodology for their use in practice, and to…
- Trial name
- NCT04557982
- Testing
- A painful procedure (peripheral venepuncture)
- Where
- Czechia
- Volunteers
- 135 people, healthy volunteers welcome
- Sponsor
- Palacky University
Polypharmacy
Measuring the Impact of an Interdisciplinary Polypharmacy Clinic Within a Patient-centered Medical Home
Title: Measuring the impact of an interdisciplinary polypharmacy clinic within a patient-centered medical home Objectives: The primary objective of this project will be to track the types of interventions made in an…
- Trial name
- NCT02077725
- Testing
- interdisciplinary polypharmacy clinic visit
- Where
- United States
- Volunteers
- healthy volunteers welcome
- Sponsor
- Ohio State University
Pain, Withdrawal
Evaluation of the Effect of Venous Diameter Measurement by Ultrasonography on Pain and Withdrawal Response
During general anesthesia, intravenous (IV) medications can disrupt the patient's comfort by causing a pain sensation or a withdrawal response in the heart.
- Trial name
- VDIAMETER (NCT03376308)
- Testing
- Pain Score, Withdrawal movement score, hemodynamic response
- Where
- Turkey (Türkiye)
- Volunteers
- 145 people, healthy volunteers welcome
- Sponsor
- Aydin Adnan Menderes University
Overweight and Obesity
Investigation of Peak Expiratory Flow and Physically Fitness in Obese and Overweight Adolescents
Due to the increasing prevalence of childhood obesity and overweight, health problems may begin to appear at an early age. The aim of this study is to examine physical activity level, core performance, anthropometric measurements…
- Trial name
- NCT05470556
- Where
- Turkey (Türkiye)
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Biruni University
Subjects Presenting With Normal or With Ocular Pathology
Clinical Validation of New OCT System
To demonstrate clinical substantial equivalence of DRI OCT-1 as comparable to the commercially available Cirrus
- Trial name
- NCT01809704
- Where
- 3 sites in United States
- Volunteers
- 87 people, healthy volunteers welcome
- Sponsor
- Topcon Medical Systems, Inc.
Laser Therapy, Low-Level
Pain Perception at Laser Treatment
The purpose of this study is to compare the pain perception at laser treatment of peripheral retinal degenerations with green and infrared wavelengths.
- Trial name
- NCT01033968
- Testing
- retina photocoagulation
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- University of Campinas, Brazil
Aspirin
Serum Thromboxane B2 Assay as a Measure of Platelet Production in Healthy Volunteers Taking Aspirin
Some aspirin-treated patients have a blunted pharmacological response predisposing to clinical failure. The investigators hypothesize that the blunted response often results from increased rate of platelet production and some…
- Trial name
- NCT03424408
- Testing
- Aspirin 81 mg
- Where
- Canada
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Hamilton Health Sciences Corporation
Cognition Disorders, Depression
Well-Being in Medical Residents in the HIBA
It is necessary and important to design tools to evaluate a central aspect of medical residents formation. The research group has been working with resident well-being since a few years in order to improve the global quality of…
- Conditions
- Cognition Disorders, Depression, Anxiety, Shift-Work Sleep Disorder
- Trial name
- NCT03087435
- Testing
- Well-Being questionnaire
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Hospital Italiano de Buenos Aires
Postmenopausal, Vitamin D Deficiency
Study to Observe the Capability to Absorb Calcium as an Measure of Adequate Levels of Vitamin D
The purpose of this study is to determine the capability to absorb calcium as a measure of the sufficient levels of Vitamin D. Calcium absorption will be measured at baseline and after vitamin D3, by dual calcium isotope…
- Trial name
- NCT01119378
- Testing
- Dual isotope technique
- Where
- United States
- Volunteers
- 76 people, healthy volunteers welcome
- Sponsor
- Winthrop University Hospital
Accommodation Disorder, Keratoconus
Clinical Investigation for a Multifunction Ophthalmic Measurement Device
The purpose of this clinical investigation is to evaluate the clinical utility of a multifunctional measuring device for Ophtalmology.
- Conditions
- Accommodation Disorder, Keratoconus, Dry Eye, Refractive Errors
- Trial name
- NCT06565091
- Testing
- Measurements of physiological parameters of the anterior chamber, Measurements of the Axial biometry
- Where
- France
- Volunteers
- 378 people, healthy volunteers welcome
- Sponsor
- Essilor International
Postspinal Hypotension, Pregnant Women Undergoing Cesarean Delivery
Carotid Flow Measurements in Pregnant Women
The goal of this observational study is to reveal the relation between carotid flow changes and post-spinal hypotension in pregnant women between the ages of 20-40.
- Trial name
- NCT06813989
- Testing
- carotid ultrasound
- Where
- Turkey (Türkiye)
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Haseki Training and Research Hospital
Asthma
Evaluation of an Asthma Treatment Strategy Based on Exhaled Nitric Oxide Measurements in Adolescents
The purpose of ICAC-01 is to determine whether an asthma treatment strategy that measures exhaled nitric oxide (eNO) to indicate disease progression is more effective in treating asthma symptoms when combined with existing asthma…
- Trial name
- NCT00114413
- Testing
- Inhaled corticosteroids, eNO measurement
- Where
- 12 sites in United States
- Volunteers
- 547 people, healthy volunteers welcome
- Sponsor
- National Institute of Allergy and Infectious Diseases (NIAID)
Cataract Extraction, Phacoemulsification
A Study Comparing Two Monofocal, Aspheric, Hydrophobic Acrylic Intraocular Lenses: the Alcon CLAREON® and the Abbott Medical Optics PCB00
This is a bilateral randomised controlled study to compare visual performance, refractive outcome, forward light scatter, patient satisfaction and objective measurement of glistenings following insertion of two monofocal…
- Conditions
- Cataract Extraction, Phacoemulsification, Glistenings, Intraocular Lens Implant
- Trial name
- NCT03364972
- Testing
- Cataract surgery
- Where
- United Kingdom
- Volunteers
- 145 people, healthy volunteers welcome
- Sponsor
- Guy's and St Thomas' NHS Foundation Trust
Blood Pressure
Validation of Pulse Waveform Analysis-based Continuous Noninvasive Blood Pressure Measurement Sensor
The study aims to define the sensitivity and specificity of a novel continuous noninvasive blood pressure monitor.
- Trial name
- NCT02357511
- Testing
- Study Monitor used
- Where
- Finland
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Tampere University Hospital
Blood Pressure Measurement
Agreement of the Nexfin™ Monitor With Non-invasive Blood Pressure Measurement
Currently, BP is measured using an inflatable cuff wrapped around the patient's upper arm. This can be set to inflate every minute, but measurement may fail due to patient movement or shivering.
- Trial name
- Nexfin Pilot (NCT02447471)
- Testing
- Nexfin
- Where
- Canada
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- University of British Columbia
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