Clinical trials: Variability
Drug Metabolism Phenotype
Biomarkers of CYP2D6 and CYP3A4 Variability in Pediatrics
Cytochrome P450 2D6 (CYP2D6) is an important enzyme in the body for breaking down many medications that are commonly used in children of various ages.
- Trial name
- NCT01118858
- Where
- 2 sites in United States
- Volunteers
- 205 people, healthy volunteers welcome
- Sponsor
- Children's Mercy Hospital Kansas City
Ventricular Septal Defect, Closure; Interventricular Septum
The Effect of Transcatheter Ventricular Septal Defect Closure on Heart Rate Variability Parameters
In this study; we evaluated the heart rate variability parameters of pediatric patients whose VSDs were closed with the transcatheter method before and after, and compared with the control group.
- Conditions
- Ventricular Septal Defect, Closure; Interventricular Septum, Autonomic Nervous System Imbalance
- Trial name
- NCT04859036
- Testing
- 24 hours ambulatory Holter monitoring
- Where
- Turkey (Türkiye)
- Volunteers
- 37 people, healthy volunteers welcome
- Sponsor
- Kayseri City Hospital
Diabetes Mellitus, Type 1
Telemedicine Program in Type 1 Diabetes and CSII
Diabetes mellitus is a chronic disease of high socio-health relevance for their clinical and economic implications (risk of complications, disability ...) (healthcare costs).
- Trial name
- NCT02790645
- Testing
- Group 2a. Telemedicine program, Group 1a. Control, Group 1b.Telemedicine program
- Volunteers
- 51 people
- Sponsor
- Fundación Pública Andaluza para la Investigación de Málaga en Biomedicina y Salud
Fetal Growth Retardation
Day to Day Variation in Fetal Heart Rate Variability
This study evaluates the day-to-day variation in fetal heart rate variability based on non-invasive fetal-ECG (NI-FECG). Furthermore, the effect of fetal movements on fetal heart rate variability will be assessed.
- Trial name
- (FHRV) (NCT04289350)
- Testing
- fetal heart rate variability
- Where
- Denmark
- Volunteers
- 44 people
- Sponsor
- University of Aarhus
Autism Spectrum Disorder With Intellectual Deficiency
Recording Stress Biomarkers in Autism Spectrum Disorders
The goal of this observational study is to learn how stress affects children and young people with autism spectrum disorder (ASD).
- Trial name
- STRESSDEFIS (NCT07535801)
- Where
- France
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Universite Cote d'Azur
Carotid Atherosclerosis
The Study of Blood Pressure Variability to Impact Arterial Stiffness and Carotid Atherosclerosis
The purpose of this study is to investigate whether and what extent blood pressure variability is associated with arterial stiffness and carotid atherosclerosis, furthermore to compare the difference in the relationship of the…
- Trial name
- NCT01466699
- Volunteers
- 1,235 people
- Sponsor
- Yan Li
Asthma in Children, Lung Function Decreased
Lung Function Variability in Children and Adolescents
Long-term variability analysis of peak expiratory flow (PEF) and forced expiratory volume in 1 s (FEV1) has been successfully used in research to predict the exacerbation of the disease in adult individuals with asthma.
- Trial name
- LUV (NCT04163146)
- Testing
- Measurements of PEF and FEV1
- Where
- Greece
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- University of Patras
Healthy, Swimming
EFFECTS OF FOAM ROLLING ON HRV IN ELITE SWIMMERS
The present study aimed to evaluate the effects of foam rolling (FR) on recovery by examining selected time-domain and frequency-domain heart rate variability (HRV) parameters in elite swimmers following intensive interval sprint…
- Conditions
- Healthy, Swimming, Autonomic Nervous System Function, Recovery
- Trial name
- HRV-SWIMMING (NCT07641062)
- Testing
- Swimming+FoamRollingRecovery, SwimmingRecovery
- Where
- Turkey (Türkiye)
- Volunteers
- 15 people, healthy volunteers welcome
- Sponsor
- Uludag University
Stress, Physiological, Sport Injury
Immediate Effect of Non-invasive Auricular Acupoint Stimulation for the Performance and the Meridian Activities of Archery Athletes
In our hypothesis, auricular acupoint stimulation might improve the attention and heart rate variability in archery athletes. The meridian activities regarding the attention and action in Chinese medicine systems might be…
- Trial name
- NCT04637607
- Testing
- Auricular acupoints stimulation
- Where
- Taiwan
- Volunteers
- 33 people, healthy volunteers welcome
- Sponsor
- Chang Gung Memorial Hospital
Infant Behavior, Infant Conditions
The Effects of Different Music Genres on Heart Rate Variability in Extremely and Very Low Birth Weight Newborns
AIM: to investigate the influence of different music genres on Heart Rate Variability (HRV) of preterm infants. Neonates undergo a daily randomized music listening program.
- Conditions
- Infant Behavior, Infant Conditions, Infant Morbidity
- Trial name
- NCT04049526
- Testing
- The influence of different music genres on Heart Rate Variability (HRV) in preterm infants
- Where
- Italy
- Volunteers
- 30 people
- Sponsor
- Ospedale di Circolo - Fondazione Macchi
Athletic Performance, Mental Toughness
Effects of Imagery and Breathing Exercises on Swimmers' Performance, Mental Toughness, and Heart-Mind Coherence
This randomized controlled trial aimed to investigate the effects of a 10-week imagery and breathing exercise intervention on 200-meter freestyle swimming performance, mental toughness, and heart-mind coherence in swimmers.
- Conditions
- Athletic Performance, Mental Toughness, Coherence (Heart-Mind Synchronization)
- Trial name
- NCT06920875
- Testing
- Imagery and Breathing Exercises
- Where
- Turkey (Türkiye)
- Volunteers
- 19 people, healthy volunteers welcome
- Sponsor
- Ankara Yildirim Beyazıt University
Subarachnoid Hemorrhage, Aneurysmal
Artificial Intelligence in Subarachnoid Hemorrhage
The overall aim of this study is to, with the help of computer/data scientist and machine learning processes, analyse collected heart rate variability data in order to evaluate whether specific patterns could be found in patients…
- Trial name
- AISAH (NCT04415736)
- Testing
- No intervention, observational study
- Where
- Sweden
- Volunteers
- 64 people
- Sponsor
- Göteborg University
Fabry Disease
Evaluation of Phenotypic Variability in Fabry Disease
Cerebrovascular events, such as stroke, are a devastating complication of Fabry disease that results in part from storage of complex lipids in both large and small vessels.
- Trial name
- NCT03145779
- Where
- United States
- Sponsor
- Boston Children's Hospital
Type 1 Diabetes Mellitus
Preschool CGM Use and Glucose Variability in Type 1 Diabetes
The objectives of this clinical study is to evaluate the efficacy continuous glucose monitoring (CGM) use on glucose variability (GV) in preschool children with T1D treated with CSII.
- Trial name
- NCT03293082
- Testing
- CGM ON, CGM OFF
- Where
- Slovenia
- Volunteers
- 40 people
- Sponsor
- University of Ljubljana, Faculty of Medicine
Neonatal Respiratory Distress Syndrome, Prematurity
Breathing Variability and NAVA in Neonates
The current study is a crossover trial, aiming at evaluating the effect of NAVA -NIV compared to Nasal Intermittent Positive Pressure Ventilation (PC-NIV) at the same level of peak inspiratory pressure, in terms of…
- Trial name
- BRAVe NANO (NCT04000568)
- Testing
- Respiratory support: NAVA -NIV and PC-NIV
- Where
- Italy
- Volunteers
- 25 people
- Sponsor
- Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico
Hemophilia A, Hemophilia B
Web Accessible Population Pharmacokinetics Service - Hemophilia: Sources of Variability
Using anonymized patient data collected as part of the WAPPS-Hemo project to explore the sources of variability in individual pharmacokinetics (PK); use the sources of variability to improve the performance of the WAPPS-Hemo…
- Trial name
- WAPPS-Hemo (NCT03533504)
- Testing
- Variability in individual PK
- Where
- Canada
- Volunteers
- 1,000 people
- Sponsor
- McMaster University
HRV, Psychological Adaptation
Weight Cut Stress: the Hidden Struggle Beyond Fight Day
This study investigated the effects of rapid weight-cutting on stress in elite kickboxers by analyzing Heart Rate Variability (HRV) and subjective stress levels using a Visual Analog Scale (VAS).
- Trial name
- NCT06860204
- Where
- Turkey (Türkiye)
- Volunteers
- 25 people, healthy volunteers welcome
- Sponsor
- Erzurum Technical University
Respiratory Failure, Intensive Care Pediatric
The Effect of Music Therapy on Vital Signs and Heart Rate Variability of Pediatric Patients During the Extubation Process.
The extubation process is critical to the future health outcomes of the pediatric patient because it tests the ability of the respiratory system to function without the support of mechanical ventilation.
- Trial name
- NCT06591533
- Testing
- Music therapy + standard care, Standard Care (in control arm)
- Where
- 2 sites in Colombia
- Volunteers
- 82 people
- Sponsor
- Claudia Aristizábal
Diabetes Mellitus, Type 1
Assess the Impact of Insulclock on Glycemic Variability and Treatment Compliance in Uncontrolled DM1 Patients
Insulclock® is a small electronic device developed to facilitate the optimal administration of insulin. This device works as an add-on module of commercially available insulin pens and monitors the date, time and dose of…
- Trial name
- Segoclock2 (NCT04847778)
- Testing
- Use of Insulclock system, both Insulclock device and Insulclock 360 app., Use of Insulclock system, both Insulclock device and Insulclock app on masked mode.
- Where
- 4 sites in Spain
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- Hospital General de Segovia
Asthma, Lung Diseases, Obstructive
Sources of Variability in Peak Expiratory Flow
To provide information necessary for the development of standards for peak expiratory flow (PEF) test performance in populations studies.
- Conditions
- Asthma, Lung Diseases, Obstructive, Chronic Obstructive Pulmonary Disease
- Trial name
- NCT00005382
- Sponsor
- National Heart, Lung, and Blood Institute (NHLBI)