Clinical trials: External Validation
Platelet Aggregation, Blood Transfusion
Validation of a Red Blood Cell Transfusion Prediction Model in a Low Transfusion Rate Population.
The transfusion risk and clinical knowledge (TRACK) allogeneic blood transfusion prediction model was developed more than ten years ago and demonstrated good discriminative ability in patients with increased risk for allogeneic…
- Trial name
- TRACK-TCT (NCT05581238)
- Testing
- TRACK-TCT
- Where
- Netherlands
- Volunteers
- 6,428 people, healthy volunteers welcome
- Sponsor
- Medisch Spectrum Twente
Psychopathology
External Validation by Machine Learning and Reduction of the Input Dimensions of the D-PSY Scale for Dimensional Psychopathology
There have been debates about whether psychiatric disorders should be classified according to categories (categorical model) or according to a continuum between normal and pathological functioning (dimensional model).
- Trial name
- D-Psy adultes (NCT05675215)
- Testing
- Psychopathology screening tests
- Where
- France
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- Institut pour la Pratique et l'Innovation en PSYchologie appliquée (Institut Pi-Psy)
Breast Cancer
Multicentric Study for External Validation of a Deep Learning Model for Mammographic Breast Density Categorization
The correct categorization of breast density is essential to adapt the diagnostic examination to the needs of each patient. Assessment of breast density is performed visually by radiologists.
- Trial name
- NCT05021055
- Volunteers
- 277 people, healthy volunteers welcome
- Sponsor
- Hospital Italiano de Buenos Aires
Female Infertility
The Embryologist's Impact on Blastocyst Vitrification and Thawing
The goal of this monocentric retrospective observational study is to analyse, for the first time in literature, the role of the embryologist who freezes and thaws the embryos.
- Trial name
- NCT06220227
- Testing
- vitrification and thawing procedures
- Where
- Italy
- Volunteers
- 6,800 people, healthy volunteers welcome
- Sponsor
- Istituto Clinico Humanitas
Acute Kidney Injury
External Validation of IRRIV Test Relationship With Renal Functional Reserve
The assessment of renal functional reserve (RFR) has been proposed for the risk stratification of patients undergoing potentially nephrotoxic procedures.
- Trial name
- IRRIV-RFR (NCT03756402)
- Volunteers
- 47 people, healthy volunteers welcome
- Sponsor
- Ospedale San Bortolo di Vicenza
Shoulder Pain
Reliability and Validity of Goniometric iPhone Applications
The purpose of this study is to determine the test-retest and inter-rater reliability and concurrent validity of two iPhone goniometric applications in the measurement of active shoulder external rotation as compared to a…
- Trial name
- NCT01629641
- Where
- United States
- Volunteers
- 94 people, healthy volunteers welcome
- Sponsor
- Texas Woman's University
Cardiac Surgery Associated - Acute Kidney Injury, CKD (Chronic Kidney Disease) Stage 5D
Incidence and Prognostic of Cardiac Surgery-Associated Acute Kidney Injury: A Spanish Multicenter Study (SCARS-AKI)
To predict the renal damage caused by cardiac surgery in patients to try to mitigate it as soon as possible
- Conditions
- Cardiac Surgery Associated - Acute Kidney Injury, CKD (Chronic Kidney Disease) Stage 5D, Acute Kidney Injury, Acute Kidney Disease
- Trial name
- SCARS-AKI (NCT07370831)
- Testing
- CARDIAC SURGERY
- Where
- Spain
- Volunteers
- 2,500 people, healthy volunteers welcome
- Sponsor
- Universidad de Oviedo
Healthy Individuals
Study for Cognitive and Genetic Characterization of a 45-65 Years Old Population
Before Alzheimer's disease (AD) clinical symptoms appear, there is a long period when changes in the brain occur. In this long asymptomatic period or preclinical phase, studies with populations at risk of developing AD have shown…
- Trial name
- NCT01835717
- Where
- Spain
- Volunteers
- 2,743 people, healthy volunteers welcome
- Sponsor
- Barcelonabeta Brain Research Center, Pasqual Maragall Foundation
Chronic Postoperative Pain
Validation of Predictive Scale of Chronic Postsurgical Pain
To asses the precision of a score to predict chronic post surgical pain in patients undergoing inguinal hernia repair, abdominal hysterectomy, vaginal hysterectomy and thoracotomy.
- Trial name
- NCT02991287
- Testing
- Inguinal hernia repair, Abdominal hysterectomy, Vaginal hysterectomy
- Where
- 21 sites in Spain
- Volunteers
- 1,040 people, healthy volunteers welcome
- Sponsor
- Parc de Salut Mar
Femoral Neck Fracture, Hip Fracture
External Validity of a Randomized Trial in Patients With a Femoral Neck Fracture
The aim of this study is to evaluate the external validity of a randomized controlled trial comparing choice of hip arthroplasty for elderly patients (>80 years) with a displaced femoral neck fracture.
- Trial name
- EXVAL (NCT02362971)
- Where
- Sweden
- Volunteers
- 900 people, healthy volunteers welcome
- Sponsor
- Danderyd Hospital
Central Venous Catheter, Infant
Optimal Insertion Depth of Left Internal Jugular Vein Catheter in Infants
We previously performed a study to create formula for the optimal insertion depth of left internal jugular vein catheter in infant, which was registered at cris.nih.go.kr.
- Trial name
- NCT03025178
- Testing
- 4Fr central venous catheter insertion
- Where
- South Korea
- Volunteers
- 46 people, healthy volunteers welcome
- Sponsor
- Seoul National University Hospital
Kidney Function Issue, Diagnosis
Method VALIDation and Evaluation of Non-radioactive Methods to Measure Glomerular Filtration Rate
This study is a single centre intervention study to compare two methods of determining the measured glomerular filtration rate (mGFR).
- Conditions
- Kidney Function Issue, Diagnosis, Chronic Kidney Diseases
- Trial name
- VALIDGFR (NCT06259422)
- Testing
- Iohexol, 125I-iothalamate and 131I-hippuran
- Where
- Netherlands
- Volunteers
- 208 people, healthy volunteers welcome
- Sponsor
- University Medical Center Groningen
Bowel Preparation, Colonoscopy
External Validation of a Predictive Model for Bowel Preparation in Patients Undergoing Colonoscopy
Bowel preparation is closely lined to the quality of colonoscopy, inadequate bowel preparation (IBP) could lead to higher miss rate of adenomas, patients' discomfort and higher health expense.
- Trial name
- NCT04325139
- Testing
- Questionnaire
- Where
- 12 sites in China
- Volunteers
- 600 people, healthy volunteers welcome
- Sponsor
- Air Force Military Medical University, China
Shame
Validation of the Swedish Translation of a Brief Shame Measure, the External and Internal Shame Scale
Shame is a normal emotion that people sometimes have. Experiencing a lot of shame has however been found to have a link to ill mental and somatic health. Therefore it is of interest to have a brief way of measuring shame.
- Trial name
- EMBER-1 (NCT07206966)
- Where
- Sweden
- Volunteers
- 350 people, healthy volunteers welcome
- Sponsor
- Uppsala University
Athletic Performance, Cognitive Fatigue
TCP-600 Supplementation and Performance Response in Professional Football Players
This study will examine whether a 28-day supplementation protocol containing taurine, caffeine, and phosphatidylserine can help professional male football players maintain physical performance, cognitive function…
- Conditions
- Athletic Performance, Cognitive Fatigue, Exercise Recovery, Football-Specific Performance
- Trial name
- TCP600-RESP (NCT07710547)
- Testing
- Taurine, Caffeine, Phosphatidylserine
- Where
- 3 sites in Poland
- Volunteers
- 65 people, healthy volunteers welcome
- Sponsor
- Vizja University in Warsaw
PHYSIOLOGICAL PHENOMENA, Homeostasis
Truway Whole-Body Digital Twin and Physiologic Resilience Study (TRU-OMNIBODY)
TRU-OMNIBODY is a prospective observational study designed to develop and independently validate a research-only whole-body digital twin.
- Conditions
- PHYSIOLOGICAL PHENOMENA, Homeostasis, Physical Functional Performance, Cardiorespiratory Fitness
- Trial name
- TRU-OMNIBODY (NCT07805044)
- Testing
- Standardized Physiologic Resilience Challenge, Multimodal Whole-Body Physiologic Monitoring, Research-Only Whole-Body Digital Twin Analysis
- Where
- United States
- Volunteers
- 450 people, healthy volunteers welcome
- Sponsor
- Truway Health, Inc.
Alzheimer Dementia (AD), Dementia
Clinical Risk Score Prediction for Risk of Dementia Among Late-life Population With Depression
The goal of this observational study is to learn about the ability of a point risk score prediction model, developed using electronic medical record data, to predict the risk of progression from geriatric depression to dementia…
- Conditions
- Alzheimer Dementia (AD), Dementia, Late Life Depression (LLD), Risk Scores
- Trial name
- NCT07676851
- Testing
- No Intervention: Observational Cohort
- Where
- China
- Volunteers
- 44 people, healthy volunteers welcome
- Sponsor
- Second Affiliated Hospital of Nanchang University
Hip Fracture, Hip Fracture Surgeries
External Validation of Ten Prediction Models for 30-day Mortality Following Hip Fracture
This study aims to externally validate ten existing prediction models with a low risk of bias for 30-day mortality following hip fracture.
- Trial name
- PROTECT (NCT06961253)
- Where
- Netherlands
- Volunteers
- 3,500 people, healthy volunteers welcome
- Sponsor
- JointResearch
Nasal Valve Collapse
Validity Study of a Nasal Valve Implant
The purpose of this study is to determine if an implant material can be injected to repair nasal valve collapse.
- Trial name
- NCT00837525
- Testing
- nasal valve implant
- Where
- United States
- Volunteers
- 4 people, healthy volunteers welcome
- Sponsor
- Nasoform, LLC