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Validation Studies clinical trials

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NCT ID: NCT03286270 Completed - Bone Fracture Clinical Trials

A mRUS Validation Study for Nail-treated Fractures of Long Bones and a TUS Exploratory Study for Nail and Plate-treated Fractures of Long Bones

mRUSTUS
Start date: September 1, 2017
Phase:
Study type: Observational

Early intervention attempts to shorten protracted delayed union (DU) or prevent non-union (NU) fractures are hampered by lack of validated quantitative assessment tools for bone fracture healing during normal and delayed healing processes. In actual practice, sequential X-rays usually follow a pre-determined time interval in patients with fractures.They constitute the best available state of the art used by surgeons to assess the fracture healing course. In an attempt to improve between raters reliability of radiographic assessment of healing, studies have explored a novel radiographic assessment for tibial shaft fractures, the Radiographic Union Scale for Tibial Fractures (RUST). The RUST assesses the presence of bridging callus and a fracture line on each of four cortices (seen on anterior-posterior and lateral views). This callus based scoring system has been since extended to other bones than the tibia in a retrospective case series. It has been renamed modified radiological union score (mRUS) and has shown potential value in bone healing measurement. Based on an initial retrospective study in nail-treated fractures, the first objective of the present investigation is to prospectively validate mRUS as a tool to identify patients at increased risk of DU and NU within the first 75-110 days after fracture occurrence. This prospective validation will be performed on a retrospective cohort of patients having sustained long bone fractures, including both upper and lower extremities. A further objective of the present investigation is to apply the scoring system to tomographic imaging in case of nail/plate treated fractures, deriving a tomographic union score (TUS) and first assess its potential value in bone healing for fractures treated by nails/plates.

NCT ID: NCT02888483 Completed - Exercise Clinical Trials

PEAKS: Validation of Mobile Technologies

PEAKS
Start date: July 2016
Phase:
Study type: Observational

The overall objective of this project is to evaluate and validate the accuracy and usability of a deployed beta sensor-based system. This is a cross-sectional validation study of 100 apparently health community dwelling adults aged 60+ years. Participants will perform standardized lifestyle, exercise and sedentary type physical activities in a clinic laboratory and home setting.

NCT ID: NCT02555462 Completed - Validation Studies Clinical Trials

Real-Ear Measurement (REM) and Test Box System Integration Into Fitting Software

Start date: September 2015
Phase: N/A
Study type: Interventional

Integration of the REM-verification within the fitting workflow will enable the hearing care professional to easily run real ear measurements. The purpose of the two study parts is to prove that an integrated cooperative system, consisting of fitting software and measurement system, matches desired responses for certain stimuli faster, more reliably and more precisely at the ear drums of hearing instrument wearers than current best practice processes.

NCT ID: NCT02552719 Completed - Validation Studies Clinical Trials

Validation of the German Version of the Injustice Experience Questionnaire

GIEVA
Start date: July 1, 2014
Phase:
Study type: Observational

Purpose of the study is the validation of the German version of the Injustice Experience Questionnaire. Pretest: Participants were informed about the aims of the study and fill in a consent form. They filled in a paper version of the German translation of the Injustice Experience Questionnaire. In a structured interview patients were asked if there were any items difficult to understand, unacceptable or offending them. Subsequently they had to answer questions about the content and meaning of the IEQ-items. Validation Study: Participants were informed about the aims of the study and filled in a consent form. By e-mail they received an access link to the online survey. The questionnaires of the survey could be filled in at home. The survey could be interrupted and terminated later. About 20 minutes were needed to answer the 80 questions of the survey. All data was saved anonymously during the survey.

NCT ID: NCT02455388 Completed - Validation Studies Clinical Trials

d13C Added Sugar Intake Biomarker: Determining Validity in Children

Start date: April 2014
Phase: N/A
Study type: Interventional

Added sugars (AS) constitute a significant source (~ 16%) of the total daily calories consumed by youth. The role of AS in health is contentious, and the reliance on self-reported dietary data is an often-cited flaw in existing research. The investigators propose to establish the validity of the d13C biomarker for AS intake from fingerstick blood samples in children; our findings could significantly advance research addressing the health impacts of AS intake in children and adolescents.

NCT ID: NCT01836107 Completed - Validation Studies Clinical Trials

Adaptation and Validation of a Score From English to Spanish for Evaluating Quality of Clinical Notes

Start date: April 2013
Phase: N/A
Study type: Observational

The purpose of this study is to make a Spanish version of a score that evaluates the characteristics of a good quality clinical note for the purpose of physician communication. The score is an instrument, originally made in English. Due to the score will be used in a different country, language and culture of the original protocol, it is necessary apply a process of translation and adaptation to the context where the score is going to be applied. The process of validation implies to evaluate if the instrument produces the same results under similar conditions and if the instrument maintains the ability to measure the same features or characteristics according to the original design.