Clinical trials: Concentration
ADHD
Internet-based Cognitive Behavioral Therapy for Adult Attention Deficit Hyperactivity Disorder
Attention deficit hyperactivity disorder (ADHD) is a disorder characterized by lack of attention, hyperactivity, and impulsivity.
- Trial name
- NCT05700539
- Testing
- Internet-based cognitive behavioral therapy
- Where
- Sweden
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- Karolinska Institutet
Healthy But Chronically Stressed
Effects of Lutein on Learning and Memory in Chronically Stressed Subjects and in an Acute Stressful Situation (TSST - Trier Social Stress Test): A Randomized, Double-blind, Placebo-controlled Trial)
The purpose of this study is to study effects of a four months lutein supplementation (in form of a lutein fortified nutritional beverage) on general learning and memory performance as well as on acute stress-induced changes in…
- Trial name
- MemLearn (NCT02257801)
- Testing
- Nutritional beverage fortified with 6mg lutein/day, Nutritional beverage fortified with 12mg lutein/day
- Where
- Germany
- Volunteers
- 150 people, healthy volunteers welcome
- Sponsor
- dsm-firmenich Switzerland AG
Vitamin D Deficiency
Immunologic Action of a Single Dose Cholecalciferol
Vitamin D receptors are expressed in activated different immune cells. It is not known, which immune cell type is targeted by exogenous vitamin D. Here, vitamin D-deficient individuals will receive once 100.000 I.U.
- Trial name
- ViDImmun (NCT01845142)
- Testing
- single administration of 100.000 I.U. vitamin D
- Where
- Germany
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Margitta Worm
Attention Deficit-Hyperactivity Disorder
Influence of Stimulant Medication on Brain Processes for Decision Making in Attention Deficit Hyperactivity Disorder
The goal of this trial is to investigate the cognitive- and brain-mechanisms underlying decision making (DM) and learning in young adults with Attention-Deficit/Hyperactivity Disorder (ADHD) as well as the modulation of…
- Trial name
- NCT01831622
- Testing
- Ritalin
- Where
- 2 sites in Norway
- Volunteers
- 131 people, healthy volunteers welcome
- Sponsor
- Mats Fredriksen
Healthy
Study to Assess the Influence of Three Different α-antagonists and Placebo on the Extent of Weekly Phenylephrine-induced Mydriasis at Three Different Concentrations of Phenylephrine in Healthy Male Volunteers
The study was aimed to evaluate the pharmacological effect of different α-antagonists on phenylephrine induced pupil size in healthy male volunteers as pharmacological basis for Intraoperative floppy iris syndrome (IFIS)
- Trial name
- NCT02266537
- Testing
- Tamsulosin, Alfuzosin, Doxazosin
- Volunteers
- 97 people, healthy volunteers welcome
- Sponsor
- Boehringer Ingelheim
Cicatrix, Re-epithelialisation
Investigation Into the Safety of Intradermal Juvidex (M6P) Administered to Wounds of Healthy Subjects
The purpose of this study was to investigate the safety and toleration of various doses of intradermal Juvidex (mannose-6-phosphate) administered to punch biopsies of normal subjects.
- Trial name
- NCT00984854
- Testing
- Juvidex
- Where
- United Kingdom
- Volunteers
- 70 people, healthy volunteers welcome
- Sponsor
- Renovo
Alcohol Concentrations in Body Fluids
MilkScreen Home Test for Alcohol in Breast Milk
The purpose of this study is to evaluate the performance of the UpSpring Milkscreen Test for Alcohol in Breast Milk to detect alcohol in breast milk from lactating women.
- Trial name
- NCT00851656
- Where
- United States
- Volunteers
- 48 people, healthy volunteers welcome
- Sponsor
- UpSpring Baby, Ltd.
ADHD
Prevalence of Attention Deficit Hyperactivity Disorder and Its Comorbidities
Estimate the prevalence of attention deficit hyperactivity disorder and comorbid psychiatric disorder among primary school students in New Valley governorate.
- Trial name
- NCT06146595
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- Assiut University
GLP-1, Gut Microbiota
Effects of Sucralose in Gut Intestinal Microbiota and Postprandial GLP-1
Recently, it has been proposed that the consumption of non-nutritive sweeteners, including sucralose, it's not harmless and is related with metabolic effects.
- Conditions
- GLP-1, Gut Microbiota, Insulin Resistance
- Trial name
- NCT06094894
- Testing
- sucralose
- Where
- Mexico
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Instituto Nacional de Ciencias Medicas y Nutricion Salvador Zubiran
ADHD
Web-based Professional Development for SMHPs in Evidence-Based Practices for Attention and Behavior Challenges
This study develops a web-based PD (CLS-R) to provide SSWs with remote training in EBPs for attention and behavior problems. CLS-R is designed to be usable, feasible, portable, accessible, and acceptable - ingredients which have…
- Trial name
- CLS-R (NCT05713331)
- Testing
- CLS-R
- Where
- 2 sites in United States
- Volunteers
- 79 people, healthy volunteers welcome
- Sponsor
- University of California, San Francisco
Bipolar Disorder, Attention Deficit Disorder With Hyperactivity
Juvenile Bipolar Disorder Outpatient Program
This is an outpatient program for children and adolescents with bipolar disorders. The naturalistic approach of the program will allow a proper investigation of the disorder, assessment of environmental and biological factors…
- Trial name
- ProCAB (NCT01000402)
- Testing
- Psychopharmacotherapy
- Where
- Brazil
- Volunteers
- 150 people, healthy volunteers welcome
- Sponsor
- Federal University of Rio Grande do Sul
Attention Deficit Hyperactivity Disorder
OT and Social Cognition in Children With ADHD: Impact of MPH
Background: The current study aimed to explore the possible effect of stimulants on oxytocin (OT), a neuropeptide found to regulate social behavior, as a mediator of the pro-social effect of methylphenidate (MPH) in children with…
- Trial name
- NCT03788902
- Testing
- Ritalin
- Volunteers
- 90 people, healthy volunteers welcome
- Sponsor
- Shalvata Mental Health Center
Pharmacokinetics of Darexaban and Metabolites, Healthy Subjects
To Evaluate if Multiple Doses of Ketoconazole Change the Blood Concentration of YM150 (Darexaban)
The primary objective of this study is to determine the effect of ketoconazole on the blood concentrations of darexaban and its metabolites (drug degradation products).
- Trial name
- NCT01405989
- Testing
- darexaban, ketoconazole
- Where
- France
- Volunteers
- 26 people, healthy volunteers welcome
- Sponsor
- Astellas Pharma Inc
Healthy
EryDex Pharmacokinetics in Healthy Volunteers
To compare the pharmacokinetic properties of two different doses of EryDex (dexamethasone sodium phosphate encapsulated in erythrocytes) given as a single infusion in healthy volunteers, based on plasma concentrations of…
- Trial name
- EryDex (NCT01925859)
- Testing
- EryDex (dexamethasone sodium phosphate encapsulated erythrocytes)
- Where
- United States
- Volunteers
- 18 people, healthy volunteers welcome
- Sponsor
- Quince Therapeutics S.p.A.
At Home Setting, Coffee With or Without Caffeine
Do It Yourself (DIY) Coffee Study; Test Effect of Coffee on Cognition in an at Home Setting
Subjects will perform experiments in an at home-setting. The effect of caffeine in coffee will be tested in subjects with computer tests on attention and alertness.
- Trial name
- NCT02061982
- Testing
- Coffee consumption
- Where
- Netherlands
- Volunteers
- 70 people, healthy volunteers welcome
- Sponsor
- TNO
Ambulatory Orchipexy
Effect of Dexmedetomidine on the Characteristics of High Volume/Low Concentration Ropivacaine in a Caudal Block in Pediatrics
The investigators perform this study to evaluate the effects of caudal Dexmedetomidine (DEX) added to high volume/low-concentration of ropivacaine in children undergoing orchiopexy.
- Trial name
- NCT02163980
- Testing
- Caudal ropivacaine + normal saline, Caudal ropivacaine + dexmedetomidine
- Where
- South Korea
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- Yonsei University
Healthy
Brain and Mindfulness
The main aim of this project is to explore the neuro-anatomical and -physiological correlates of meditation on attention and emotion-regulation.
- Trial name
- MEDITATION (NCT03117478)
- Testing
- Magneto-encephalography (MEG), Electro-encephalography (EEG), Functional Magnetic Resonance Imaging (fMRI)
- Where
- France
- Volunteers
- 169 people, healthy volunteers welcome
- Sponsor
- Hospices Civils de Lyon
Higher Uric Acid Concentrations (>5,5 mg/dl), Healthy
Influence of Hesperidin and Vitamin C on Uric Acid Concentration
Aim of the study is to investigate the impact of hesperidin and/or vitamin C on elevated uric acid concentrations.
- Trial name
- HesperiDrinC (NCT04316390)
- Testing
- Control, Hesperidin, Vitamin C
- Where
- Germany
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- University of Kiel
Atherosclerosis
A Study Investigating the Concentrations of Darapladib in Blood and the Safety of This Compound in Healthy Japanese Men
This study is being conducted to provide initial safety, tolerability, PK and PD data that will allow further studies with darapladib in Japanese patients
- Trial name
- NCT00551317
- Testing
- Darapladib (SB480848)
- Where
- United States
- Volunteers
- 18 people, healthy volunteers welcome
- Sponsor
- GlaxoSmithKline
Periodontal Diseases, Old Age
Effect of Low-Level Laser on Crevicular Interleukin-1β Concentration in Patients With Periodontal Disease: A Relation to Periodontal Inflammaging
This study is done to compare between young age and old age patients with periodontitis (inflammaging) and the effect of diode laser as adjunctive to scaling and debridement
- Trial name
- NCT06677385
- Testing
- diode laser as adjunctive to conventional scaling and debridement, conventional scaling and debridement
- Where
- Egypt
- Volunteers
- 28 people, healthy volunteers welcome
- Sponsor
- Misr University for Science and Technology
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