Search clinical trials for: Caffeine

Total 471 results

University of Vienna

Unknown

Influence of a Bitter Compound and Bittermasking Compound on Gastric pH

Change of Gastric pH

Austria
Southern Illinois University Carbondale

Completed

Interaction of Caffeine and Hydration on Voice

Voice Disorders

United States
Masaryk University

Recruiting

CYP1A2 and ADORA2A Genotypes and Endurance Performance.

Healthy

Czechia
Sharp HealthCare

Completed

Early Versus Routine Caffeine Administration in Extremely Preterm Neonates (EARLYCAFFEINE)

Caffeine

United States
University of Toronto
Canadian Institutes of Health Research (CIHR); Nutrigenomix Inc.

Unknown

Caffeine, Genetic Variation and Athletic Performance (GMC-AP)

Healthy

Canada
Pennington Biomedical Research Center

Completed

Testing Potential Synergistic Effects of Albuterol and Caffeine on Metabolic Rate (CALM)

Healthy Volunteers

United States
University of Exeter

Completed

How Does Altering the Timing of Pre-exercise Low-dose Caffeine Ingestion Affect Endurance Exercise Performance

Healthy

United Kingdom
David Grant U.S. Air Force Medical Center

Withdrawn

Synthetic and Natural Caffeine on Hemodynamic Parameters in Young, Healthy Volunteers

Cardiovascular Injury

United States
Hacettepe University

Completed

Effects of Caffeine, L-Theanine, and Diaphragmatic Breathing on Esports Players' Performance (CLD Esports St)

Caffeine | L-theanine | Esports

Turkey
Vienna Institute for Research in Ocular Surgery

Unknown

Prevention of UV- Induced Apoptosis by Caffeine (Caff2)

Cataract

Austria
Seoul St. Mary's Hospital

Completed

Caffeine Citrate Use and Electronic Activity of the Diaphragm (EDI) Changes

Apnea of Prematurity | Caffeine | Preterm

Korea, Republic of
Texas A&M University

Completed

An Examination of a Weight Loss Formula on Health (NB14)

Weight Loss

United States
Northumbria University

Completed

Cognitive and Cerebral Blood Flow Effects of 2-week Caffeine Abstinence or Maintenance

Cognitive Function | Mood | Caffeine Withdrawal | Cerebral Haemodynamics

United Kingdom
St. Mary's University, Twickenham

Not yet recruiting

Caffeine and Training Intensity Quantification

Caffeine
Escola Superior de Tecnologia da Saúde de Coimbra

Completed

Effects of Caffeine on Cerebral Blood Flow

Cardiovascular System

Portugal
University of Colorado, Denver

Completed

The Effect of Tablet Size on Cognitive Performance Caffeine (CaC)

Placebo Effect

United States
University of California, San Francisco

Completed

Coffee and Real-time Atrial and Ventricular Ectopy (CRAVE)

Premature Atrial Contractions | Premature Ventricular Contractions

United States
Chengdu University of Traditional Chinese Medicine
Boston University; University of Leipzig

Completed

The Effect of Caffeine on Acupuncture Analgesia With the Human Pain Model

Pain

China
University of Roma La Sapienza

Unknown

"Potential Effect of Acute and Chronic Caffeine Administration on Platelet Reactivity in Patient With Coronary Artery Disease on Dual Antiplatelet Therapy" (CyCLOPS)

CORONARY ARTERY DISEASE

Italy
Semmelweis University

Recruiting

The Effect of an Additional Pre-extubational Loading Dose of Caffeine-citrate (NEOKOFF22)

Premature Birth | Respiratory Failure | Apnea of Prematurity

Hungary
University of Florence

Completed

Caffeine Treatment in in the Delivery Room (CAFROOM)

Respiratory Distress Syndrome

Italy
Mansoura University Children Hospital

Completed

Prophylactic Versus Therapeutic Caffeine for Apnea of Prematurity

Apnea

Egypt
Applied Science & Performance Institute

Recruiting

Acute Effects of PLT Health Solutions zümXR Extended-Release Caffeine

Cognitive Change | Mood | Caffeine | Mood Change

United States
Western University, Canada

Completed

The Acute Effects of Exercise and Caffeine on Working Memory During Acute Caffeine Deprivation

Caffeine Withdrawal | Acute Exercise | Memory Deficits

Canada
Riphah International University

Completed

Effect of Strength Versus Endurance Training on Muscle Damage in Gym Athletes on Caffeine Supplementation.

Muscle Damage

Pakistan
Université de Sherbrooke

Completed

Ketone Production With Acute Caffeine Intake

Healthy Adults

Canada
Daping Hospital and the Research Institute of Surgery...

Unknown

Caffeine for Preterm Infants With Apnea of Prematurity(AOP)

Apnea of Prematurity | Caffeine

China
Duke University
University of North Carolina, Chapel Hill

Completed

Effect of Feedings on Caffeine in Premature Infants

Apnea of Prematurity | Caffeine | Premature Newborn

United States
University of Saskatchewan

Completed

Effects of Caffeine on Methacholine Challenge and Exhaled Nitric Oxide Levels.

Asthma

Canada
Ain Shams University

Completed

Effect of Early Use of Caffeine Citrate in Preterm Neonates

Preterm Birth

Egypt
Technological Education Institute of Sterea Ellada
European Union

Completed

Non Invasive Measurement of the Haemodynamic Parameters and of the Advanced Glycation End Products (AGEs) Levels (NONINVASHEMO)

Hemodynamic Instability | Skin and Subcutaneous Tissue Disorders

Greece
University of Alcala

Completed

Effect of Acute Caffeine and Beetroot Juice Intake on Strength, Power, and Muscular Endurance (CAF+BJ)

Nitrates | Caffeine | Resistance Exercise | Dietary Supplements | Sports Performance

Spain
Hadassah Medical Organization

Completed

Does Caffeine Enhance Bowel Recovery After Colorectal Surgery?

Postoperative Ileus

Israel
Ain Shams University

Unknown

Caffeine as Respiratory Stimulant in Preterm Infants

Apnea of Prematurity

Egypt
McMaster University
National Heart, Lung, and Blood Institute (NHLBI); Canadian Institutes of Health...

Completed

Caffeine for Apnea of Prematurity-Sleep (CAP-S) Study (CAP-S)

Apnea of Prematurity

Australia, Canada
Johns Hopkins University
National Institute on Drug Abuse (NIDA)

Completed

Remote Guided Caffeine Reduction

Sleep Disorder | Diarrhea | Anxiety Disorders | Insomnia | Sleep Initiation and Maintenance Disorders | Anxiety | Sleep Disturbance | Gastrointestinal Dysfunction | Heartburn | Caffeine | Caffeine Withdrawal | Caffeine; Sleep Disorder | Caffeine Dependence | Caffeine-Induced Anxiety Disorder | Caffeine-Induced Sleep... and other conditions

United States
National Nutrition and Food Technology Institute

Completed

The Effects of Coffee Main Constituents (Caffeine and Chlorogenic Acid) Supplementation on Inflammatory, Metabolic Factors, Hepatic Steatosis and Fibrosis in None- Alcoholic Fatty Liver Patients With Type 2 Diabetes

Type 2 Diabetes Nonalcoholic Fatty Liver

Iran, Islamic Republic of
University of North Carolina, Chapel Hill
Thrasher Research Fund

Active, not recruiting

Caffeine for Hypoxic-Ischemic Encephalopathy

Hypoxic-Ischemic Encephalopathy

United States
NICHD Neonatal Research Network
Eunice Kennedy Shriver National Institute of Child Health and Human Development...

Terminated

Moderately Preterm Infants With Caffeine at Home for Apnea (MoCHA) Trial (MoCHA)

Apnea of Prematurity

United States
Jennifer Shepherd
The Gerber Foundation

Active, not recruiting

Early Caffeine in Preterm Neonates

Intubation | Apnea of Prematurity | Hemodynamic Instability | BPD - Bronchopulmonary Dysplasia

United States
McMaster University
National Health and Medical Research Council, Australia; Canadian Institutes...

Completed

Caffeine for Apnea of Prematurity (CAP)

Apnea of Prematurity

Canada, United States, Israel, Australia, Netherlands, United Kingdom, Switzerland, Germany, Sweden
American SIDS Institute

Completed

Effects of Caffeine on Intermittent Hypoxia in Infants Born Preterm

Hypoxia

United States
University of Castilla-La Mancha

Completed

Effects Of Caffeine On Cognitive Performance

Caffeine

Spain
University of Calgary
Natural Sciences and Engineering Research Council, Canada

Withdrawn

Metabolic and Genetic Impacts of Energy Drinks in Youth

Pediatric Obesity | Glucose Intolerance | Health Behavior | Nutrition | Caffeine | Pediatric | Metabolism Disorder, Glucose

Canada
Nobelpharma

Completed

Clinical Study of Caffeine for Apnea of Prematurity

Apnea of Prematurity

Japan
University of North Carolina, Chapel Hill
Eunice Kennedy Shriver National Institute of Child Health and Human Development...

Recruiting

Dose Optimization of Caffeine for HIE

Hypoxic-Ischemic Encephalopathy

United States
Hospital de Clinicas de Porto Alegre
Conselho Nacional de Desenvolvimento Científico e Tecnológico

Terminated

Best Available Therapy With or Without Meropenem for Bloodstream Infections by Enterobacterales With High Level of Resistance to Carbapenems (ABOVE)

Bloodstream Infection | Carbapenem-Resistant Enterobacteriaceae Infection

Brazil
Singapore General Hospital
Sengkang General Hospital

Suspended

CaffeinICU Study - A Study on Oral Caffeine in ICU Patients With Coma (CaffeinICU)

Depressed GCS

Singapore
Children's Hospital of Chongqing Medical University

Completed

Target Weaning Oxygen to Determine Cafffeine Duration for AOP (DCAP)

Apnea of Prematurity | Caffeine | Weaning Oxygen | Medicine Regimen

China
University of Alabama at Birmingham
Centre for Infectious Disease Research in Zambia; University Teaching Hospital...

Not yet recruiting

Caffeine Citrate in Preterm Infants at Risk of Apnea in Zambia

Apnea of Prematurity | Development, Infant | Premature Infant Disease

Zambia

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