Clinical trials: Caffeine
Hydrocortisone
Association Between Cortisol, Cortisone, Cotinine, Nicotine, Caffeine, Melatonin Levels in Hair, Serum, Urine, Saliva and Chronic Stress
The investigators aim to investigate the association between hair, serum, urine and saliva to measure cortisol, cortisone, cotinine, nicotine, melatonin and caffeine.
- Trial name
- NCT02403921
- Where
- Taiwan
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- National Taiwan University Hospital
Pain, Postoperative, Surgery--Complications
Celecoxib vs. Acetaminophen/Codeine/Caffeine for Post-operative Analgesia in Rhinoplasty.
The primary aim of this study is to evaluate whether celecoxib (CELEBREX) is equivalent to acetaminophen-codeine-caffeine (TYLENOL# 3) for the management of pain after primary elective open septorhinoplasty with osteotomies.
- Conditions
- Pain, Postoperative, Surgery--Complications, Opioid Analgesic Adverse Reaction, Opioid Use
- Trial name
- NCT04259333
- Testing
- Celecoxib 200mg, Acetaminophen, Codeine Drug Combination
- Where
- Canada
- Volunteers
- 60 people
- Sponsor
- Blake Raggio
Myopia
Evaluation of Short Term Use of Experimental Eye Drops BHVI2, 0.02% Atropine and BHVI2 Plus 0.02% Atropine Eye Drops
To assess the one-month ocular effects of nightly application of experimental BHVI2 and 0.02% atropine eye drops either alone or in combination, in children aged between 6 to 13 years old with myopia and randomized to use of…
- Trial name
- NCT03690414
- Testing
- Experimental BHVI2, Atropine sulfate 0.02% eye drops, Combination eye drops
- Where
- Vietnam
- Volunteers
- 52 people, healthy volunteers welcome
- Sponsor
- Hai Yen Eye Care
Alcohol-Related Disorders, Drinking and Driving
Interaction of Alcohol With Energy Drinks
The main objective of the project is to assess whether there is an interaction between the effects of ethanol and energy drinks on driving performance.
- Trial name
- AEDED (NCT02771587)
- Testing
- Alcohol and energy drink, Alcohol, Energy drink
- Where
- 2 sites in Spain
- Volunteers
- 16 people, healthy volunteers welcome
- Sponsor
- Parc de Salut Mar
Caffeine
Caffeine and Cerebrovascular Reactivity
Caffeine is the most commonly used stimulant drug with well documented effects on cerebral vascula-ture. Caffeine is known to non-specifically bind to adenosine receptors in the brain and to reduce resting blood flow while…
- Trial name
- NCT04730193
- Testing
- Caffeine
- Where
- United States
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- University of Oklahoma
Nitrate, Caffeine
The Effects of Nitrate, Caffeine, and Cold Exposure on Cardiovascular Function.
Dietary inorganic nitrate supplementation may have positive implications on cardiovascular function. The aim of this project is to determine if nitrate supplementation can attenuate the effects that caffeine and cold exposure…
- Conditions
- Nitrate, Caffeine, Cold Exposure
- Trial name
- NCT06602921
- Testing
- TruBeet inorganic beetroot juice, Caffeine, Cold pressor test
- Where
- United Kingdom
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- Loughborough University
Pharmacokinetics of Repaglinide, Pharmacokinetics of Caffeine
A Study to Evaluate the Effect of Multiple Doses of Isavuconazole on the Pharmacokinetics of Repaglinide and Caffeine
The purpose of this study is to assess the effect of multiple doses of isavuconazole on the pharmacokinetics of Repaglinide and possible metabolites after single dose administration.
- Conditions
- Pharmacokinetics of Repaglinide, Pharmacokinetics of Caffeine, Healthy Subjects
- Trial name
- NCT02128321
- Testing
- Isavuconazole, Repaglinide, Caffeine
- Where
- United States
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- Astellas Pharma Global Development, Inc.
Obesity
B181 Metobes-III: Weight Loss Maintenance of a New Bioactive Compound (Metobes-Long)
To investigate the 5-hour acute effect on energy expenditure, substrate oxidation and ad libitum food intake after intake of the Metobes-compound (green tea extract, capsaicin, tyrosine, caffeine).
- Trial name
- NCT00302263
- Testing
- Metobes-compound
- Where
- Denmark
- Volunteers
- 22 people, healthy volunteers welcome
- Sponsor
- University of Copenhagen
Cognitively Healthy Subjects Influenced by Psychoactive Drugs
Cognitive Hyper-performance - Effects of Stimulating Substances in Chess-players
Effects of caffeine, methylphenidate, modafinil and placebo on cognitive performance of chess players in chess games and neuropsychiatric standardized tests.
- Trial name
- CHESS (NCT01834547)
- Testing
- Drugs use: methylphenidate, Drug use: modafinil, caffeine
- Where
- Germany
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- K. Lieb
Caffeine, Balance; Distorted
The Effect of Turkish Coffee on Postural Control and Hand-eye Coordination in Young Adults
Although the effects of different doses of caffeine on balance have been evaluated in various studies, the effects of low doses of caffeine ingested with Turkish coffee on postural control and hand-eye coordination remain…
- Conditions
- Caffeine, Balance; Distorted, Coordination and Balance Disturbances
- Trial name
- NCT06561113
- Testing
- Caffeine intake
- Where
- Turkey (Türkiye)
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Bezmialem Vakif University
Osteopenia (Disorder), Apnea of Prematurity
Effect of Caffeine on Preterm Infants' Bone Mineral Content
The primary objective was to determine whether caffeine therapy is associated with decreases bone mineral content using dual energy x-ray absorptiometry.
- Trial name
- NCT03084432
- Testing
- Dual Energy X-ray Absorptiometry
- Volunteers
- 42 people
- Sponsor
- Ain Shams University
Healthy, Caffeine
Effects of Energy Drinks on Sleep and Cardiovascular Health
The purpose of this study is to learn about the change in quality of sleep, structural organization of sleep, and cardiovascular responses after consuming an energy drink compared to a placebo drink with no caffeine or stimulants.
- Trial name
- NCT05503732
- Testing
- Energy Drink
- Where
- United States
- Volunteers
- 54 people, healthy volunteers welcome
- Sponsor
- Mayo Clinic
Healthy
The Effect of Short-term Supplementation of OliPhenolia® on Fat Oxidation
There is current research interest in the use of fruit and plant-based food products containing high levels of natural antioxidants and their impact on exercise, which may be particularly beneficial for recreationally or…
- Trial name
- NCT07210099
- Testing
- Concentrated olive fruit water, Anhydrous caffeine
- Where
- United Kingdom
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Anglia Ruskin University
Caffeine
Effects of Caffeine on EEG Theta/Beta Ratio and Cognitive Control
Cognitive control driven by the prefrontal cortex (PFC) of the brain is thought to be important for goal-directed control over stimulus-driven processes.
- Trial name
- NCT02940808
- Testing
- Caffeine (200mg)
- Where
- Netherlands
- Volunteers
- 41 people, healthy volunteers welcome
- Sponsor
- Leiden University Medical Center
Pain
The Effect of Caffeine on Acupuncture Analgesia With the Human Pain Model
This is a single center, double blind, randomized, parallel-group study to assess the effect of 200mg caffeine,400mg caffeine and decaffeinated on acupuncture analgesia with the human pain model.
- Trial name
- NCT02577770
- Testing
- acupuncture, 200mg caffeine, 400mg caffeine
- Where
- China
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- Chengdu University of Traditional Chinese Medicine
Cognitive Function
Radicle Revive™: A Study Assessing the Impact of Health and Wellness Products on Menopausal-Related Health Issues Associated Health Outcomes and Related Health Outcomes
Radicle Revive™: A randomized, double-blind, placebo-controlled study assessing the impact of health and wellness products on menopausal-related health issues associated health outcomes.
- Trial name
- NCT07548307
- Testing
- Revive Active Product 1
- Where
- United States
- Volunteers
- 990 people, healthy volunteers welcome
- Sponsor
- Radicle Science
Tinnitus
Effects of Caffeine in Tinnitus
Caffeine intake is reported by many authors to enhance the perception of tinnitus. The aim of this study is to determine the effects of 1 month caffeine intake reduction in the scores of validated questionnaire Tinnitus Handicap…
- Trial name
- NCT00628316
- Testing
- caffeine
- Where
- 2 sites in Brazil
- Volunteers
- 50 people
- Sponsor
- Faculdade de Medicina de Valenca
Preterm Birth
Effect of Early Use of Caffeine Citrate in Preterm Neonates
This work is designed to study the effect of the early use of caffeine citrate in preterm neonates who need respiratory support on morbidity and short term neonatal outcome.
- Trial name
- NCT04001712
- Testing
- Caffeine Citrate
- Where
- Egypt
- Volunteers
- 54 people
- Sponsor
- Ain Shams University
Migraine, Caffeine Withdrawal
The Effects of Caffeine Withdrawal on Migraine
Sporadic and chronic dietary consumption of caffeine has substantial biological effects on the nervous system. The effects on migraine are at large not known.
- Trial name
- NCT03022838
- Testing
- Caffeine
- Where
- 3 sites in Norway
- Volunteers
- 10 people
- Sponsor
- Nordlandssykehuset HF
Alertness
Evaluating the Impact of Energy Drink Formulas on Alertness for an Extended Period
The primary purpose of the research is to evaluate in healthy adults the time course effects of energy drink formulas containing 120 mg caffeine with varying levels of taurine and b vitamins on subjective alertness in the…
- Trial name
- NCT07400614
- Testing
- All beverages are flavor and color matched, Flavored carbonated beverage, color-matched
- Where
- United Kingdom
- Volunteers
- 48 people, healthy volunteers welcome
- Sponsor
- PepsiCo Global R&D