Clinical trials: Caffeine, open to volunteers
Athletic Performance, Dietary Supplement
The Effects of Acute Nitrate and Caffeine Co-ingestion on Discipline-Specific Exercise Performance.
The purpose of this study is to investigate the acute, separate, and combined ergogenic effects of dietary nitrate (beetroot juice, BJ) and caffeine (CAF) supplementation on discipline-specific athletic performance.
- Conditions
- Athletic Performance, Dietary Supplement, Iron Status
- Trial name
- NCT07748416
- Testing
- Caffeine, Dietary Nitrate (Beetroot Juice)
- Where
- Poland
- Volunteers
- 112 people, healthy volunteers welcome
- Sponsor
- Poznan University of Physical Education
Terbinafine Adverse Reaction
Clinical Effect of Caffeine Consumption in Patients Taking Oral Terbinafine
The investigators hypothesize that there would be significant changes in blood pressure or heart rate in patients consuming caffeine while taking terbinafine.
- Trial name
- NCT05667246
- Testing
- Caffeinated Coffee, Decaffeinated Coffee
- Where
- United States
- Volunteers
- 52 people, healthy volunteers welcome
- Sponsor
- Weill Medical College of Cornell University
Fetal Distress
Effect of Maternal Chocolate Consumption on Fetal Non-Stress Test (NST) Reactivity.
This is a single-blind, randomized, parallel-group, superiority clinical trial. The study aims to determine whether a single intake of 30g of dark chocolate (≥80% cocoa) by pregnant women with a non-reactive fetal non-stress test…
- Trial name
- CHOCO-NST (NCT07418151)
- Testing
- Dark Chocolate, Sugar-free White Chocolate
- Where
- Honduras
- Volunteers
- 190 people, healthy volunteers welcome
- Sponsor
- Universidad Nacional Autonoma de Honduras
Sleep
Sleep-dependent Learning in Aging
The specific objective of this proposed research is to understand whether deficits in sleep-dependent memory changes reflect age-related changes in sleep, memory, or both.
- Trial name
- NCT03840083
- Testing
- Sleep
- Where
- United States
- Volunteers
- 584 people, healthy volunteers welcome
- Sponsor
- University of Massachusetts, Amherst
Steatohepatitis, Nonalcoholic, Osteo Arthritis
DDI Study of ECC0509 With Metformin, Midazolam, and Caffeine
This is a Phase 1, open-label, 2-part, fixed-sequence, single-center, two-period, drug-drug interaction trial in healthy adult participants to determine if ECC0509 administration at steady state affects the pharmacokinetics (PK)…
- Trial name
- NCT07873229
- Testing
- ECC0509, Metformin, Caffeine
- Where
- Australia
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Eccogene
Sleep Disturbance, Inflammation
UCLA REST Study (REsearch on Sleep Techniques)
Sleep disturbance has a range of negative effects on psychosocial and biological processes important for academic and social success as well as mental and physical health among adolescents and young adults.
- Conditions
- Sleep Disturbance, Inflammation, Psychosocial Functioning
- Trial name
- REST (NCT05576090)
- Testing
- Mindfulness Meditation, Sleep Education
- Where
- United States
- Volunteers
- 240 people, healthy volunteers welcome
- Sponsor
- University of California, Los Angeles
Healthy Adults; Hematopoietic System; Caffeine
Impact of Chronic and Acute Caffeine Intake on the Hematopoietic System
This study investigates how caffeine intake affects blood stem and progenitor cells in healthy adults. The trial will compare people who regularly consume caffeine with those who consume very little or none.
- Trial name
- CaffeineHSC (NCT07193264)
- Testing
- Caffeine (200 mg)
- Where
- 2 sites in Switzerland
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Jasmin Rettkowski
Creatine
Changing in Plasma Concentration of a New Form of Creatine
Creatine is one of the most popular supplements among athletes. Studies have consistently shown that creatine supplementation increases intramuscular creatine concentrations, improving exercise performance and/or enhancing…
- Trial name
- NCT07838805
- Testing
- New Formulation of Creatine (Creamix), Active Comparator: Creatine Monohydrate
- Where
- Italy
- Volunteers
- 9 people, healthy volunteers welcome
- Sponsor
- University of Padova
Balanced, Postural; Defect
The Effect of Coffee Consumption on Balance
This study aims to investigate the effects of daily coffee consumption on balance performance in healthy university students. Caffeine is a widely consumed psychoactive substance that may influence neuromuscular control, reaction…
- Conditions
- Balanced, Postural; Defect, Coffee Consumption
- Trial name
- NCT07540559
- Testing
- Daily coffee consumption (self-reported exposure)
- Volunteers
- 32 people, healthy volunteers welcome
- Sponsor
- Saglik Bilimleri Universitesi
Caffeine
The Repeatability of the Effect of Caffeine Supplementation on Submaximal Physiological Responses and Cycling Time Trial Performance
Recently, Grgic (2018) discussed the concept of responders and non-responders to caffeine supplementation highlighting the importance of the repeatability of results.
- Trial name
- NCT06935214
- Testing
- Caffeine
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- St. Mary's University, Twickenham
Exercise Response
Caffeine Mouth Rinse on Salivary Immunoglobulin A, Lactoferrin and A-Amylase Levels
The goal of this clinical trial is to investigate the effects of the mouth rinse form of caffeine (400 mg) on salivary lactoferrin, α-amylase and secretory immunoglobulin-a levels after incremental exercise in young amateur…
- Trial name
- NCT06704711
- Testing
- Caffeine 300 MG, Exercise
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- University of Gaziantep
Exercise Physiology, Nutritional Supplementation
Effects of Pre-Run Nutritional Supplements During a Fixed-Pace 5 km Treadmill Run
This study will examine how three commonly used pre-run nutritional supplements-caffeine, L-citrulline, and an exogenous ketone supplement-affect physiological and perceptual responses during a fixed-pace 5 km treadmill run in…
- Trial name
- NCT07854223
- Testing
- Caffeine, L-Citrulline, Exogenous Ketone (Beta-Hydroxybutyrate)
- Where
- United States
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- St. Louis University
Hearing
Investigating the Effect of Caffeine Consumption on Speech Understanding in Noise in Young Adults
Caffeine is a widely consumed substance worldwide and is often used to increase alertness and improve cognitive functions. Caffeine stimulates brain activity by binding to adenosine receptors, which increases alertness instead of…
- Trial name
- NCT06942117
- Testing
- Experimental
- Where
- Turkey (Türkiye)
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Istanbul Aydın University
Cognitive Performance, Attention
Effects of Caffeine on Chess Performance and Cognitive Function in Professional Chess Players
This study will examine whether caffeine improves cognitive and competitive performance in professional chess players during tournament-style games.
- Conditions
- Cognitive Performance, Attention, Reaction Time, Caffeine
- Trial name
- GRANDMASTER (NCT07641335)
- Testing
- Caffeinated Coffee
- Where
- United States
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- St. Louis University
Postoperative Care, Postoperative Complications
Nutrition to Support Postoperative Recovery
Older surgical patients commonly have malnutrition, and there is evidence these patients have increased risk for poor physical and brain recovery after surgery and anesthesia.
- Conditions
- Postoperative Care, Postoperative Complications, Cognition, Nutritional Assessment
- Trial name
- NCT07109505
- Testing
- Nutritional Shake, Nutritional Instructions Only
- Where
- United States
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Dartmouth-Hitchcock Medical Center
Healthy Adult Male and Female Volunteers
Evaluating a Mat-Based Biometric Vibration System for Sleep and Daily Recovery
The goal of this randomized clinical trial is to learn whether a low-frequency "kinetic wellness" mat (a comfortable mat that gently vibrates) can improve stress recovery, sleep quality, mood, and attention in healthy adults ages…
- Trial name
- NCT07221318
- Testing
- Low-frequency whole-body vibration mat
- Where
- United States
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Florida International University
Healthy Adult Participants
A Multiple-dose Study Investigating the Drug-drug Interaction Potential and QTc Effects of Fosmanogepix in Healthy Adult Subjects
This is a Phase 1, fixed-sequence, multiple-dose study in approximately 42 healthy adult participants. The study will be conducted in two parts.
- Trial name
- NCT07881224
- Testing
- Fosmanogepix, The medicine cocktail (caffeine, bupropion, flurbiprofen, omeprazole, dextromethorphan and midazolam), Probe substrates (repaglinide, rosuvastatin, and digoxin)
- Where
- Netherlands
- Volunteers
- 42 people, healthy volunteers welcome
- Sponsor
- Basilea Pharmaceutica
Depression, Anxiety
A Mindfulness-Based Stress Reduction Training Program Model
Mindfulness-based practices are used to regulate mood, alleviate or completely eliminate symptoms that cause stress and depression, and positively influence well-being.
- Conditions
- Depression, Anxiety, Stress, Well-Being, Psychological
- Trial name
- NCT07544355
- Testing
- The mindfulness group-"Mindfulness-Based Stress Reduction Program", The life skills workshop group-"Lifestyle Management and Well-being Workshop"
- Volunteers
- 93 people, healthy volunteers welcome
- Sponsor
- Istanbul Medeniyet University
Circadian Rhythm, Time Perception
Circadian Timing and Time Perception in Healthy Adults
This study examines how a person's natural daily rhythm ("chronotype") affects the way time is experienced and judged. Healthy Danish-speaking adults (23-45 years) who are clearly morning-type or evening-type will complete two…
- Trial name
- ChronoTime (NCT07292597)
- Testing
- Session timing relative to chronotype
- Where
- Denmark
- Volunteers
- 128 people, healthy volunteers welcome
- Sponsor
- University of Aarhus
Alcohol Drinking, Healthy Adult Participants
Acute Effects of Jägermeister With Energy Drinks (Jägermbomb)
The main objective of this study is to compare the acute effects of drinking Jägerbombs with drinking alcohol alone during a binge-drinking episode, which involves consuming a large amount of alcohol in a short period of time to…
- Conditions
- Alcohol Drinking, Healthy Adult Participants, Binge Alcohol Consumption, Energy Drinks
- Trial name
- JB (NCT07588022)
- Testing
- Jägermeister and Energy Drink (Jägerbomb)
- Where
- Spain
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- Fundació Institut Germans Trias i Pujol